CN106968653A - Offshore platform adjustable jet pump flood pattern and its control device and control method - Google Patents
Offshore platform adjustable jet pump flood pattern and its control device and control method Download PDFInfo
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- CN106968653A CN106968653A CN201710191247.XA CN201710191247A CN106968653A CN 106968653 A CN106968653 A CN 106968653A CN 201710191247 A CN201710191247 A CN 201710191247A CN 106968653 A CN106968653 A CN 106968653A
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- 238000000034 method Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 138
- 238000002347 injection Methods 0.000 claims abstract description 126
- 239000007924 injection Substances 0.000 claims abstract description 126
- 210000000867 larynx Anatomy 0.000 claims description 25
- 230000000875 corresponding effect Effects 0.000 claims description 20
- 230000001276 controlling effect Effects 0.000 claims description 7
- 238000004364 calculation method Methods 0.000 claims description 6
- 235000009496 Juglans regia Nutrition 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 claims description 5
- 235000020234 walnut Nutrition 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- 239000002699 waste material Substances 0.000 claims description 3
- 240000007049 Juglans regia Species 0.000 claims 1
- 230000008859 change Effects 0.000 description 7
- 241000758789 Juglans Species 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 238000005457 optimization Methods 0.000 description 4
- 238000012795 verification Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002332 oil field water Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/124—Adaptation of jet-pump systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/02—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid
- F04F5/10—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid displacing liquids, e.g. containing solids, or liquids and elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
- F04F5/48—Control
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
The present invention relates to a kind of offshore platform adjustable jet pump flood pattern and its control device and control method, it is characterised in that：It includes some adjustable jet pumps, some high service pipelines, some suction lines, some water injecting pipelines, a booster pump, a main water supply system and a low service；Some adjustable jet pumps are parallel with one another, and the high pressure entry of each adjustable jet pump is connected by high service pipeline with the port of export of booster pump, the suction inlet of each adjustable jet pump is connected by suction line with low service, and the outlet of each adjustable jet pump is connected by water injecting pipeline with each water injection well；Suction inlet of the water source through booster pump in main water supply system enters, higher-pressure region is formed at the high pressure entry of each adjustable jet pump, the suction inlet of each adjustable jet pump sucks the low pressure water of low service, and each water injection well is injected in the outlet of mixed water under high pressure and low pressure water through adjustable jet pump.The present invention can be widely applied in the water filling field of offshore platform water injection well.
Description
Technical field
The invention belongs to offshore oilfield water filling field, especially with regard to a kind of offshore platform adjustable jet pump flood pattern and
Its control device and control method.
Background technology
At sea in the recovery process in oil field, water filling is the important step of oil field production, and water filling is conducive to keeping oil reservoir pressure
Power and recover original formation pressure during exploitation oil, realize oil field stable high yield, and obtain higher receipts and adopt rate.
Due to offshore platform space reasons, its water filling typically uses intensive mode, i.e., be equipped with a set of model on an offshore platform
And pressure rating identical water filling pumping system, distributed after pump supercharging by a set of water filling manifold to well head.Due to different injection well
The reasons such as the inhomogeneity on stratum cause the injection pressure difference of each water injection well, and therefore, the processing mode of prior art is：Protecting
While demonstrate,proving maximum pressure well injection pressure, remaining injection relatively low each well of pressure then needs to inject after being depressured by valve throttle,
The mass energy for having thereby resulted in injection link is wasted.Moreover, with the extension of injection length, being needed at same wellhead of water injection well
Injection pressure and flow can also produce respective change, occur injection pressure it is constant and inject changes in flow rate or injection pressure change and
The constant situation of flow is injected, can not be now adjusted completely by valve, will also result in substantial amounts of energy loss.
The content of the invention
In view of the above-mentioned problems, it is an object of the invention to provide a kind of offshore platform adjustable jet pump flood pattern and its control
Device and control method, choke valve is substituted using adjustable jet pump, and adjustable jet pump structure is changed by automatically adjusting, and is met not
Injection pressure and the change of flow with water injection well, and each water injection well become with the injection pressure caused by time lengthening, flow
Change situation, is realized energy-saving.
To achieve the above object, the present invention takes following technical scheme：A kind of offshore platform adjustable jet pump flood pattern,
It is characterized in that：It includes some adjustable jet pumps, some high service pipelines, some suction lines, some water injecting pipelines, one
Booster pump, a main water supply system and a low service；Some adjustable jet pumps are parallel with one another, and each described adjustable penetrate
The high pressure entry of stream pump is connected by the high service pipeline with the port of export of the booster pump, each adjustable jet pump
Suction inlet be connected by the suction line with the low service, the outlet of each adjustable jet pump passes through
The water injecting pipeline is connected with each water injection well；Suction inlet of the water source through the booster pump in the main water supply system enters,
High pressure is formed at the high pressure entry of each adjustable jet pump, the suction inlet of each adjustable jet pump supplies water the low pressure
The low pressure water source suction of system, each note is injected in the outlet of mixed water under high pressure and low pressure water through each adjustable jet pump
Well.
Each adjustable jet pump includes a hollow adjustable jet pump housing and one and carries the feed tube of nozzle；It is described
Interconnected suction chamber, trunnion and anemostat are disposed with adjustable jet pump housing, and the side of the suction chamber goes out
Mouthful as the adjustable jet pump suction inlet, the outlet of the anemostat as the adjustable jet pump outlet；It is described enter
Liquid pipe is plugged in the suction chamber of the adjustable jet pump housing with one end of the nozzle, and the spray nozzle front end with it is described
Trunnion entrance is not in contact with each other, and the side cover that the feed liquor pipe outer wall is set with the adjustable jet pump shell end is threadedly coupled, institute
The other end for stating feed tube is used as the high pressure entry of the adjustable jet pump；Close to the institute of described nozzle one end in the feed tube
State to be fixedly installed inside feed tube between two support rings, support ring described in two and plug a nozzle needle with rack；Supported described in two
An adjusting screw is provided with the feed liquor pipe outer wall between ring, the adjusting screw passes through the feed tube and the nozzle needle
Cooperated by rack.
The adjustable jet pump also includes a dial for being used to measure the feed tube and nozzle advance and backway,
The dial is welded on the outside of the side cover；The dial surface is provided with an annular groove, the annular groove and is inserted with
One stop screw for controlling the feed tube precession and backway, and the stop screw passes through spiral shell with the feed tube
Line is connected.
The main water supply system includes two filters and a water filling surge tank, the first filter and the second filter
Arrival end respectively with pure water well and extraction well be connected, for being filtered to the pure water well and recovered water WIH source；
The port of export of first filter and the second filter is connected with the arrival end of the water filling surge tank, and the water filling is delayed
The port of export for rushing tank is connected with the suction inlet of the booster pump, and stable water source is provided for it.
First filter uses desander.
Second filter includes swash plate oil expeller, gas floatation device and the walnut shell filter being sequentially connected.
A kind of control device of the offshore platform adjustable jet pump flood pattern based on the system, it is characterised in that：Its
Including PLC module, remote work station, the pressure flow detector positioned at each adjustable jet pump exit, positioned at each described
Adjustable jet pump governor motion at adjustable jet pump high pressure entry；The PLC module by primary scene bus with it is each described
Pressure flow detector is connected, and is connected by secondary scene bus with each adjustable jet pump governor motion, total by control
Line is connected with the remote work station；Each adjustable jet pump governor motion respectively with the regulation in each adjustable jet pump
Screw is connected with feed tube, for adjust the nozzle needle aperture and larynx mouth of the feed tube away from；Each pressure flow detector is real
When gather the outlet pressure and rate of discharge signal in each adjustable jet pump exit, be sent to through the PLC module described
Remote work station；The remote work station produces corresponding Regulate signal and passes through the PLC moulds according to each signal received
Block is sent to each adjustable jet pump governor motion, realizes the remote adjustment to each adjustable jet pump.
Be provided with water injection control system in the remote work station, the water injection control system include signal acquisition module,
Processing module, the first adjustment module, detection module, contrast module and the second adjustment module；The signal acquisition module is used to obtain
The water injection pressure and injection flow needed for each water injection well are taken, and is sent to the processing module；The processing module is used to obtain
The required water injection pressure and required injection flow taken and setting water injection pressure and setting injection flow contrast, are obtained according to comparing result
To corresponding nozzle needle aperture and larynx mouth away from and being sent to first adjustment module；First adjustment module is used for basis and obtained
The nozzle needle aperture and larynx mouth arrived is sent to each adjustable jet pump governor motion away from generation corresponding actions signal；The inspection
Survey module be used for detect in real time each adjustable jet pump actual outlet pressure and actual rate of discharge, and be sent to it is described right
Compare module；The contrast module is used for the actual outlet pressure of each adjustable jet pump, actual rate of discharge and required note
Water pressure, required injection flow are contrasted, and calculation error is sent to second adjustment module respectively；Second regulation
Module is used for according to error comparing result, and the nozzle needle aperture to each adjustable jet pump is finely adjusted, and generates corresponding dynamic
Make signal, be sent to each adjustable jet pump governor motion.
A kind of control method of the offshore platform adjustable jet pump flood pattern based on the control device, it is characterised in that
Comprise the following steps：1) adjustable jet pump is demarcated, the nozzle needle obtained under setting injection pressure and injection flow condition is opened
Degree and larynx mouth away from；2) in remote work station signal acquisition module obtain in real time each water injection well of offshore platform required injection pressure and
Required injection flow, and it is sent to processing module；3) processing module by the required injection pressure and required injection flow of acquisition with
Step 1) in obtained setting injection pressure and setting injection current capacity contrast, and corresponding nozzle needle aperture is obtained according to comparing result
With larynx mouth away from being sent to the first adjustment module；4) the first adjustment module according to obtained nozzle needle aperture and larynx mouth away from generation is corresponding
Actuating signal, and adjustable jet pump governor motion is sent to by secondary scene bus, to the current work of each adjustable jet pump
It is adjusted as parameter；5) start booster pump and each adjustable jet pump and water filling is carried out to each water injection well；6) when each adjustable jet pump
After stable, detect that the actual outlet pressure of each adjustable jet pump and actual outlet are flowed in real time by each pressure flow detector
Amount, and pass through primary scene bus feedback to remote work station；7) contrast module is by the actual outlet pressure received, actually go out
Mouth flow is contrasted with required injection pressure and required injection flow, and calculation error is sent to the second adjustment module respectively；
8) the second adjustment module generates fine adjustment signal according to error comparing result, and is sent to accordingly adjustable penetrate by secondary scene bus
Pump-regulating mechanism is flowed, each adjustable jet pump is finely adjusted so that the actual outlet pressure of each adjustable jet pump and actual outlet
Flow and required injection pressure and required injection flow matches.
The step 8) in, the method that the second adjustment module is finely adjusted according to error comparing result to each adjustable jet pump
For：Second adjustment module is respectively judged two error amounts with threshold pressure differential set in advance and difference in flow threshold value：Work as reality
The difference of border outlet pressure and required injection pressure is more than threshold pressure differential, and/or actual rate of discharge and required injection flow
When difference is more than difference in flow threshold value, the nozzle needle aperture to adjustable jet pump is finely adjusted.When actual outlet pressure and required injection
The difference of pressure is less than or equal to threshold pressure differential, and the difference of actual rate of discharge and required injection flow is less than or equal to flow
During poor threshold value, terminate regulation process.
The present invention is due to taking above technical scheme, and it has advantages below：1st, the present invention is due to using each adjustable jet
Pump carries out water filling to each water injection well, and adjustable jet pump structure is changed by automatically adjusting, and meets different injection pressure and injection is flowed
The change of amount, greatly reduces the waste of energy.2nd, the present invention is due to being provided with adjusting screw and spacing spiral shell in adjustable jet pump
Nail, moves forward and backward nozzle needle by adjusting screw and realizes the regulation of nozzle aperture, by adjust stop screw realize larynx mouth away from tune
Section, double parameters regulation had both increased the working range of adjustable jet pump, suction capactity as big as possible is realized again, and ensured
On the premise of mouth flow is constant, reduces water under high pressure flow, further reduce energy consumption.3rd, because each adjustable jet pump is adjusted in the present invention
Section mechanism is connected by controlling bus with PLC module and remote work station, and each adjustable jet pump is directly controlled by remote work station
Adjustment structure, the structure to each adjustable jet pump is adjusted, and effectively reduces human cost and human error.4th, the present invention by
Each flow detector and pressure detector can gather the actual outlet pressure of each adjustable jet pump in real time in water-injection control device
Power and actual rate of discharge, and be sent to remote work station and realize long-range fine setting so that actual outlet pressure and rate of discharge and
Setting value is more matched, and substantially increases the accuracy of flood pattern.Thus, the present invention can be widely applied to offshore platform note
In the water filling field of well.
Brief description of the drawings
Fig. 1 is offshore platform adjustable jet pump flood pattern structural representation of the present invention；
Fig. 2 is adjustable jet pump structural representation of the present invention；
Fig. 3 is the control device figure of offshore platform adjustable jet pump flood pattern of the present invention.
Embodiment
The present invention is described in detail with reference to the accompanying drawings and examples.
As shown in figure 1, offshore platform adjustable jet pump flood pattern of the present invention, including some adjustable jet pumps 1, Ruo Gangao
Press supply channel 2, some suction lines 3, some water injecting pipelines 4, a booster pump 5, a main water supply system 6 and low pressure water supply system
System 7.Wherein, some adjustable jet pumps 1 are parallel with one another, and the high pressure entry of each adjustable jet pump 1 passes through a high service pipe
Road 2 is connected with the port of export of booster pump 5, and the suction inlet of each adjustable jet pump 1 passes through a suction line 3 and low service
7 are connected, and the outlet of each adjustable jet pump 1 is connected by a water injecting pipeline 4 with each water injection well 8.Water in main water supply system 6
Suction inlet of the source through booster pump 5 enters, and high pressure is formed at the high pressure entry of each adjustable jet pump 1, and pass through each adjustable jet
The suction inlet of pump 1 sucks the low pressure water source of low service 7, and mixed water under high pressure and low pressure water are through each adjustable jet pump
Each water injection well 8 is injected in 1 outlet.
As shown in Fig. 2 each adjustable jet pump 1, which includes a hollow adjustable jet pump housing 100 and one, carries nozzle 101
Feed tube 102.Interconnected suction chamber 103, trunnion 104 and anemostat are disposed with adjustable jet pump housing 100
105, and suction chamber 103 waste outlet port as the suction inlet of adjustable jet pump 1, the outlet of anemostat 105 is used as adjustable jet
The outlet of pump 1.The one end of feed tube 102 with nozzle 101 is plugged in the suction chamber 103 of adjustable jet pump housing 100, and spray
The front end of mouth 101 is not in contact with each other with the entrance of trunnion 104, the side cover that the outer wall of feed tube 102 is set with the end of adjustable jet pump housing 100
106 threaded connections, the other end of feed tube 102 as adjustable jet pump 1 high pressure entry.Feed liquor close to the one end of nozzle 101
It is fixedly installed inside pipe 102 between two support rings 107, two support rings 107 and plugs a nozzle needle 108 with rack.Two support rings
An adjusting screw 109 is provided with the outer wall of feed tube 102 between 107, the adjusting screw 109 passes through feed tube 102 and nozzle needle
108 are cooperated by rack so that nozzle needle 108 can be movable relative to two support rings 107, to adjust nozzle 101
Aperture.
Main water supply system 6 includes two filters 61,62 and a water filling surge tank 63, the first filter 61 and the second mistake
The arrival end for filtering device 62 is connected with pure water well 64 and extraction well 65 respectively, for pure water well 64 and the extraction reclaimed water of well 65
Filtered in source.The port of export of first filter 61 and the second filter 62 is connected with the arrival end of water filling surge tank 63,
The port of export of water filling surge tank 63 is connected with the suction inlet of booster pump 5, and stable water source is provided for it.
In above-described embodiment, the output end of booster pump 5 is additionally provided with some high pressure water injection pipelines 9 in parallel, each high pressure injection
The port of export of water lines 9 is joined directly together with each high pressure water injection wellhead 10 respectively.
In the various embodiments described above, the outside of side cover 106 is welded with a dial 110, for measuring feed tube 102 and nozzle
101 distances advanced and retreated, the surface of dial 110, which is provided with an annular groove, annular groove, is inserted with a stop screw 111,
And the stop screw 111 is connected through a screw thread with feed tube 102, for the distance for controlling the precession of feed tube 102 and retreating, namely
Control larynx mouth away from scope.Wherein, larynx mouth is away from the plane for referring to the exit of nozzle 101 and the distance of the porch plane of trunnion 104.
In the various embodiments described above, the first filter 61 uses desander, for removing the silt particle in water supply well.
In the various embodiments described above, the second filter 62 includes swash plate oil expeller 621, the gas floatation device 622 being sequentially connected
And walnut shell filter 623；And swash plate oil expeller 621, gas floatation device 622 and walnut shell filter 623 are respectively used to removing and adopted
Oil, grease and suspended solid in wet well 65.
Based on above-mentioned offshore platform adjustable jet pump flood pattern, the present invention provides a kind of offshore platform adjustable jet pump note
The control device of water system, it includes PLC module 11, remote work station 12, the pressure current positioned at each exit of adjustable jet pump 1
Amount detector 13 and the adjustable jet pump governor motion 14 at each high pressure entry of adjustable jet pump 1.PLC module 11 passes through
Primary scene bus 15 is connected with each pressure flow detector 13, and machine is adjusted by secondary scene bus 16 and each adjustable jet pump
Structure 14 is connected, and is connected by controlling bus 17 with remote work station 12.Each adjustable jet pump governor motion 14 respectively with it is each adjustable
Adjusting screw 109 in jet pump 1 is connected with feed tube 102, for adjust the nozzle needle aperture of feed tube 102 and larynx mouth away from.Respectively
Pressure flow detector 13 gathers the outlet pressure and rate of discharge signal in each exit of adjustable jet pump 1 in real time, through PLC module
11 are sent to remote work station 12.Remote work station 12 produces corresponding Regulate signal and passed through according to each signal received
PLC module 11 is sent to each adjustable jet pump governor motion 14, realizes the remote adjustment to each adjustable jet pump 1.
As shown in figure 3, being provided with water injection control system 121 in remote work station 12, water injection control system 121 includes signal
Acquisition module 122, processing module 123, the first adjustment module 124, detection module 125, the adjustment module of contrast module 126 and second
127.Signal acquisition module 122 is used to obtain the injection pressure and injection flow needed for each water injection well, and is sent to processing module
123.Processing module 123 is used to inject the required injection pressure and required injection flow of acquisition with setting injection pressure and setting
Current capacity contrast, corresponding nozzle needle aperture and larynx mouth are obtained away from and being sent to the first adjustment module 124 according to comparing result.First
Adjustment module 124 is used for according to obtained nozzle needle aperture and larynx mouth away from generation corresponding actions signal, and is sent to each adjustable jet
Pump-regulating mechanism 14.Detection module 125 is used for the actual outlet pressure for detecting each adjustable jet pump 1 in real time and actual outlet stream
Amount, and it is sent to contrast module 126.Contrast module 126 is used for the actual outlet pressure of each adjustable jet pump 1, actual outlet
Flow is contrasted with required injection pressure, required injection flow, and calculation error is sent to the second adjustment module 127 respectively.
Second adjustment module 127 is used for according to error comparing result, and the nozzle needle aperture to each adjustable jet pump 1 is finely adjusted, and is generated
Corresponding actuating signal, is sent to each adjustable jet pump governor motion 14.
Based on the control device of above-mentioned offshore platform adjustable jet pump flood pattern, the present invention also provides a kind of offshore platform
The control method of adjustable jet pump flood pattern, including：
1) adjustable jet pump 1 is demarcated, obtains setting injection pressure Ps and the nozzle needle under the conditions of injection flow Qs and open
Ks and larynx mouth are spent away from Ls.
The present invention adjustable jet pump is demarcated first, and by numerical simulation and verification experimental verification double optimization after, obtain
To the optimization data of adjustable jet pump flood pattern, as under setting injection pressure and injection flow condition, required nozzle needle is opened
Degree and larynx mouth are away from as shown in table 1 below.
Table 1
2) signal acquisition module 122 obtains the required injection pressure of each water injection well of offshore platform in real time in remote work station 12
P and required injection flow Q, and it is sent to processing module 123.
Signal acquisition module 123 is used to obtain note needed for the water injection well inputted from terminals such as keyboard, human-computer interaction windows
Enter pressure P and required injection flow Q.Meanwhile, with the extension of water injection time, injection pressure and flow needed for water injection well can be sent out
Changing, such as appearance injection pressure are constant and inject the situation of changes in flow rate, or injection pressure change occur and inject flow not
The situation of change, now signal acquisition module need to obtain the injection pressure P and required injection flow Q needed for each water injection well in real time.
3) processing module 123 is by the required injection pressure P and required injection flow Q of acquisition and step 1) in obtained setting
Pressure Ps and setting injection flow Qs contrasts are injected, and corresponding nozzle needle aperture Ks and larynx mouth are obtained away from Ls according to comparing result,
It is sent to the first adjustment module 124.
Processing module 123 will pass through numerical simulation in the required injection pressure P and flow Q values of the water injection well of acquisition and table 1
With the setting injection pressure Ps after verification experimental verification double optimization and setting injection flow Qs contrasts, the sea provided by table 1
The optimization data of platform adjustable jet pump flood pattern obtain corresponding nozzle needle aperture Ks and larynx mouth away from Ls.If for example, required note
Enter pressure P for 2MPa, needed for injection flow Q be 650m3/ d, then can obtain nozzle needle aperture Ks=35% and larynx according to table 1
Mouth is away from Ls=12mm.
4) the first adjustment module 124 generates corresponding actuating signal according to obtained nozzle needle aperture Ks and larynx mouth away from Ls, and
Adjustable jet pump governor motion 14 is sent to by secondary scene bus 16, the current operating parameters of each adjustable jet pump 1 are entered
Row regulation.
Adjustable jet pump governor motion 14 is received after actuating signal, by rotating adjusting screw 109 so that nozzle needle aperture
Setting value Ks is reached, while moving feed tube 102, the distance between regulation nozzle 101 and trunnion 104 so that larynx mouth by screw thread
Away from reaching setting value Ls.
5) start booster pump 5 and each water injection well of 1 pair of each adjustable jet pump carries out water filling.
Pure water WIH source passes through the silt in desander filter water；Recovered water WIH source passes sequentially through swash plate oil expeller
621st, oil, grease and the solid suspended particle in gas floatation device 622 and the three process filter water of walnut shell filter 633.Filtering
Pure water well and the water of extraction well afterwards is stored in water filling surge tank 63.Water in water filling surge tank 63 is pressurized by booster pump 5
Water under high pressure is formed, into the feed tube 102 of each adjustable jet pump 1, after water under high pressure is by nozzle 101, can be formed in suction chamber 103
Low pressure water in higher-pressure region, higher-pressure region meeting draws low pressure water system 7, water under high pressure and low pressure water pass through trunnion 104 and anemostat
Each water injection well is injected after 105.
If to each high-pressure water injection well 10 carry out water filling, then by booster pump 5 be pressurized after water under high pressure directly through high pressure water injection
Pipeline transport is to each high-pressure water injection well 10.
6) after each adjustable jet pump 1 is stable, each adjustable jet is detected by each pressure flow detector 13 in real time
The actual outlet pressure P of pump 10With actual rate of discharge Q0, and remote work station 12 is fed back to by primary scene bus 15.
7) contrast module 126 is by the actual outlet pressure P received0, actual rate of discharge Q0With required injection pressure P and
Required injection flow Q is contrasted, and calculation error is sent to the second adjustment module 127 respectively.
8) the second adjustment module 127 generates fine adjustment signal according to error comparing result, and is sent out by secondary scene bus 16
Corresponding adjustable jet pump governor motion 14 is sent to, each adjustable jet pump 1 is finely adjusted so that the reality of each adjustable jet pump 1
Outlet pressure and actual rate of discharge and required injection pressure and required injection flow matches.
Two threshold values are previously provided with second adjustment module 127, one is threshold pressure differential, and one is difference in flow threshold value, respectively will
Two error amounts are judged with threshold value：
When the difference of actual outlet pressure and required injection pressure is more than threshold pressure differential, and/or actual rate of discharge and institute
When the difference that flow need to be injected is more than difference in flow threshold value, the nozzle needle aperture to adjustable jet pump 1 is finely adjusted.
When actual outlet pressure with it is required injection pressure difference be less than or equal to threshold pressure differential, and actual rate of discharge and
When the difference of required injection flow is less than or equal to difference in flow threshold value, terminate regulation process.
The various embodiments described above are merely to illustrate the present invention, wherein the structure of each part, connected mode and manufacture craft etc. are all
It can be varied from, every equivalents carried out on the basis of technical solution of the present invention and improvement should not be excluded
Outside protection scope of the present invention.
Claims (10)
1. a kind of offshore platform adjustable jet pump flood pattern, it is characterised in that：It includes some adjustable jet pumps, some high pressures
Supply channel, some suction lines, some water injecting pipelines, a booster pump, a main water supply system and a low service；
Some adjustable jet pumps are parallel with one another, and the high pressure entry of each adjustable jet pump passes through the high service
Pipeline is connected with the port of export of the booster pump, the suction inlet of each adjustable jet pump by the suction line with it is described
Low service is connected, and the outlet of each adjustable jet pump is connected by the water injecting pipeline with each water injection well；Institute
State suction inlet of the water source in main water supply system through the booster pump to enter, the shape at the high pressure entry of each adjustable jet pump
Into high pressure, the suction inlet of each adjustable jet pump sucks the low pressure water source of the low service, mixed high pressure
Each water injection well is injected in the outlet of water and low pressure water through the adjustable jet pump.
2. offshore platform adjustable jet pump flood pattern as claimed in claim 1, it is characterised in that：Each adjustable jet pump
Include a hollow adjustable jet pump housing and one and carry the feed tube of nozzle；
Interconnected suction chamber, trunnion and anemostat, and the suction chamber are disposed with the adjustable jet pump housing
Waste outlet port be used as the suction inlet of the adjustable jet pump, outlet the going out as the adjustable jet pump of the anemostat
Mouthful；The one end of the feed tube with the nozzle is plugged in the suction chamber of the adjustable jet pump housing, and the nozzle
Front end is not in contact with each other with the trunnion entrance, the side cover spiral shell that the feed liquor pipe outer wall is set with the adjustable jet pump shell end
Line is connected, the other end of the feed tube as the adjustable jet pump high pressure entry；
Two support rings are fixedly installed inside the feed tube of described nozzle one end in the feed tube, are supported described in two
A nozzle needle with rack is plugged between ring；An adjusting screw is provided with the feed liquor pipe outer wall between support ring described in two,
The adjusting screw is cooperated through the feed tube with the nozzle needle by rack.
3. offshore platform adjustable jet pump flood pattern as claimed in claim 2, it is characterised in that：The adjustable jet pump is also
Including one the dial for measuring the feed tube and nozzle advance and backway, the dial is welded on the side cover
Outside；The dial surface, which is provided with an annular groove, the annular groove, is inserted with one for controlling the feed tube precession
With the stop screw of backway, and the stop screw is connected through a screw thread with the feed tube.
4. offshore platform adjustable jet pump flood pattern as claimed in claim 1, it is characterised in that：The main water supply system bag
Include two filters and a water filling surge tank, the arrival end of the first filter and the second filter is respectively with pure water well and adopting
Wet well is connected, for being filtered to the pure water well and recovered water WIH source；First filter and the second mistake
The port of export of filter device is connected with the arrival end of the water filling surge tank, the port of export and the booster pump of the water filling surge tank
Suction inlet be connected, for its provides stably water source.
5. offshore platform adjustable jet pump flood pattern as claimed in claim 4, it is characterised in that：First filter
Using desander.
6. offshore platform adjustable jet pump flood pattern as claimed in claim 4, it is characterised in that：Second filter
Including the swash plate oil expeller, gas floatation device and walnut shell filter being sequentially connected.
7. a kind of control based on the offshore platform adjustable jet pump flood pattern of system as described in any one of claim 1~6
Device, it is characterised in that：It includes PLC module, remote work station, the pressure flow positioned at each adjustable jet pump exit
Detector, the adjustable jet pump governor motion at each adjustable jet pump high pressure entry；
The PLC module is connected by primary scene bus with each pressure flow detector, by secondary scene bus with
Each adjustable jet pump governor motion is connected, and is connected by controlling bus with the remote work station；Each adjustable jet
Pump-regulating mechanism is connected with the adjusting screw and feed tube in each adjustable jet pump respectively, for adjusting the feed tube
Nozzle needle aperture and larynx mouth away from；Each pressure flow detector gathers the outlet pressure in each adjustable jet pump exit in real time
With rate of discharge signal, the remote work station is sent to through the PLC module；The remote work station is each according to what is received
Signal, produces corresponding Regulate signal and is sent to each adjustable jet pump governor motion, realization pair by the PLC module
The remote adjustment of each adjustable jet pump.
8. the control device of offshore platform adjustable jet pump flood pattern as claimed in claim 7, it is characterised in that：It is described remote
Water injection control system is provided with journey work station, the water injection control system includes signal acquisition module, processing module, the first tune
Save module, detection module, contrast module and the second adjustment module；
The signal acquisition module is used to obtain the water injection pressure and injection flow needed for each water injection well, and is sent to the processing
Module；
The processing module is used to note the required water injection pressure of acquisition and required injection flow with setting water injection pressure and setting
Water-carrying capacity is contrasted, and corresponding nozzle needle aperture and larynx mouth are obtained away from and being sent to first adjustment module according to comparing result；
First adjustment module is used for according to obtained nozzle needle aperture and larynx mouth away from generation corresponding actions signal, and is sent to each
The adjustable jet pump governor motion；
The detection module is used for the actual outlet pressure and actual rate of discharge for detecting each adjustable jet pump in real time, concurrently
It is sent to the contrast module；
The contrast module is used for the actual outlet pressure of each adjustable jet pump, actual rate of discharge and required water filling pressure
Power, required injection flow are contrasted, and calculation error is sent to second adjustment module respectively；
Second adjustment module is used for according to error comparing result, and the nozzle needle aperture progress to each adjustable jet pump is micro-
Adjust, and generate corresponding actuating signal, be sent to each adjustable jet pump governor motion.
9. a kind of controlling party based on the offshore platform adjustable jet pump flood pattern of control device as described in claim 7 or 8
Method, it is characterised in that comprise the following steps：
1) adjustable jet pump is demarcated, obtains setting injection pressure and nozzle needle aperture and larynx mouth under water filling injection condition
Away from；
2) signal acquisition module obtains the required injection pressure and required note of each water injection well of offshore platform in real time in remote work station
Inbound traffics, and it is sent to processing module；
3) processing module is by the required injection pressure and required injection flow of acquisition and step 1) in obtained setting inject pressure
Current capacity contrast is injected with setting, and corresponding nozzle needle aperture and larynx mouth are obtained away from being sent to the first regulation mould according to comparing result
Block；
4) the first adjustment module according to obtained nozzle needle aperture and larynx mouth away from generating corresponding actuating signal, and existing by second
Field bus is sent to adjustable jet pump governor motion, and the current operating parameters of each adjustable jet pump are adjusted；
5) start booster pump and each adjustable jet pump and water filling is carried out to each water injection well；
6) after each adjustable jet pump is stable, the reality of each adjustable jet pump is detected in real time by each pressure flow detector
Outlet pressure and actual rate of discharge, and pass through primary scene bus feedback to remote work station；
7) the actual outlet pressure received, actual rate of discharge are injected pressure and required injection flow by contrast module with required
Contrasted, and calculation error is sent to the second adjustment module respectively；
8) the second adjustment module generates fine adjustment signal according to error comparing result, and is sent to and accordingly may be used by secondary scene bus
Jet pump-regulating mechanism is adjusted, each adjustable jet pump is finely adjusted so that the actual outlet pressure and reality of each adjustable jet pump
Rate of discharge and required injection pressure and required injection flow matches.
10. the control method of offshore platform adjustable jet pump flood pattern as claimed in claim 9, it is characterised in that：It is described
Step 8) in, the method that the second adjustment module is finely adjusted according to error comparing result to each adjustable jet pump is：
Second adjustment module is respectively judged two error amounts with threshold pressure differential set in advance and difference in flow threshold value：
When the difference of actual outlet pressure and required injection pressure is more than threshold pressure differential, and/or actual rate of discharge and required note
When the difference of inbound traffics is more than difference in flow threshold value, the nozzle needle aperture to adjustable jet pump is finely adjusted.
When actual outlet pressure with it is required injection pressure difference be less than or equal to threshold pressure differential, and actual rate of discharge with it is required
When the difference for injecting flow is less than or equal to difference in flow threshold value, terminate regulation process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710191247.XA CN106968653A (en) | 2017-03-28 | 2017-03-28 | Offshore platform adjustable jet pump flood pattern and its control device and control method |
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| CN201710191247.XA CN106968653A (en) | 2017-03-28 | 2017-03-28 | Offshore platform adjustable jet pump flood pattern and its control device and control method |
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| CN110671370A (en) * | 2019-08-17 | 2020-01-10 | 河北欧姆隆机械有限公司 | Atmospheric injector and processing technology thereof |
| CN111594147A (en) * | 2019-02-21 | 2020-08-28 | 中国石油天然气股份有限公司 | Device and method for real-time acquisition of downhole pressure and temperature |
| CN114482948A (en) * | 2020-10-27 | 2022-05-13 | 中国石油天然气股份有限公司 | Injection increasing system of water injection well |
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| CN115283369A (en) * | 2022-09-06 | 2022-11-04 | 林峡 | Carbon dioxide state control system and method |
| CN115839224A (en) * | 2023-02-14 | 2023-03-24 | 陇东学院 | A chemical reagent injection device for oil field |
| CN116104820A (en) * | 2023-02-06 | 2023-05-12 | 中海油能源发展股份有限公司 | Throwing-fishing type cable-free pressure-controlled adjustable jet pump |
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| CN116104820A (en) * | 2023-02-06 | 2023-05-12 | 中海油能源发展股份有限公司 | Throwing-fishing type cable-free pressure-controlled adjustable jet pump |
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| CN115839224B (en) * | 2023-02-14 | 2023-04-25 | 陇东学院 | A chemical reagent injection device for oil field |
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Application publication date: 20170721 |