CN108729859B - Injection self-advancing type multi-branch small borehole completion tool and operation method - Google Patents
Injection self-advancing type multi-branch small borehole completion tool and operation method Download PDFInfo
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- CN108729859B CN108729859B CN201810405689.4A CN201810405689A CN108729859B CN 108729859 B CN108729859 B CN 108729859B CN 201810405689 A CN201810405689 A CN 201810405689A CN 108729859 B CN108729859 B CN 108729859B
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- jet
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- pipe
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000002347 injection Methods 0.000 title abstract description 6
- 239000007924 injection Substances 0.000 title abstract description 6
- 210000002445 nipple Anatomy 0.000 claims abstract description 34
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims abstract description 3
- 238000005553 drilling Methods 0.000 claims description 31
- 238000012546 transfer Methods 0.000 claims description 17
- 239000004576 sand Substances 0.000 claims description 16
- 238000012360 testing method Methods 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 230000008676 import Effects 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 230000020477 pH reduction Effects 0.000 description 2
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 210000005239 tubule Anatomy 0.000 description 1
Images
Classifications
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- 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
- E21B43/11—Perforators; Permeators
- E21B43/112—Perforators with extendable perforating members, e.g. actuated by fluid means
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- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
-
- 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
- E21B43/02—Subsoil filtering
- E21B43/10—Setting of casings, screens, liners or the like in wells
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/06—Deflecting the direction of boreholes
- E21B7/061—Deflecting the direction of boreholes the tool shaft advancing relative to a guide, e.g. a curved tube or a whipstock
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a jet self-advancing type multi-branch slim hole well completion tool, which comprises a jet nipple connected with the lower end of a well completion pipe column, wherein a liner pipe hermetically connected with the jet nipple is arranged in the jet nipple, an annular space which is sealed up and down is formed between the liner pipe and the jet nipple, a pressure transmission hole communicated with the annular space is formed in the liner pipe, a plurality of branch thin pipelines uniformly distributed along the circumferential direction are arranged in the annular space, inlets of the branch thin pipelines are arranged in the annular space, outlets of the branch thin pipelines penetrate through the side wall of the jet nipple, the branch thin pipelines are connected with the side wall of the jet nipple through pipeline sealing joints, and self-advancing nozzles are connected to the outlets of the branch thin pipelines. The invention also discloses an operation method of the injection self-advancing type multi-branch small borehole completion tool. The invention has the advantages of large processing radius, controllable depth of the slim hole, simple and reliable construction operation and the like.
Description
Technical Field
The invention belongs to the technical field of oilfield development and production, and particularly relates to a self-advancing multi-branch slim hole well completion tool applied to an open hole during oilfield development operation and an operation method.
Background
The low-efficiency well and the shut-down well in the production oil field become key factors for restricting the stable production of the oil field. For low-yield wells with low yield and low efficiency, if the formation liquid supply capacity is poor due to the geology, the oil-gas leakage area is increased by the development scheme. If oil layer pollution is caused in the development process of drilling and completing wells or oil extraction and the like, an oil and gas drainage channel is required to be dredged.
In order to increase the oil gas drainage area, dredge an oil gas drainage channel and increase the liquid production of low-liquid production low-efficiency wells, the current common means are acidification, fracturing and well completion of wells with complex structures (horizontal wells, branch wells, extended reach wells and the like), and in recent years, the radial drilling technology is also applied to a certain degree. These techniques have both advantages and significant disadvantages in some respects, such as small radius of acidizing, uncontrollable fracturing fractures, complex well construction techniques, long operating times, long radial drilling techniques, the need for high pressure equipment, and the like.
Disclosure of Invention
The invention provides a jet self-advancing multi-branch slim hole completion tool and an operation method thereof for solving the technical problems in the prior art, and the tool and the operation method have the advantages of large treatment radius, controllable slim hole depth, simple and reliable construction operation and the like.
The technical scheme adopted by the invention for solving the technical problems in the prior art is as follows: the utility model provides a jet many branches of little well completion instrument of formula of advancing certainly, includes the jet nipple joint of being connected with the completion tubular column lower extreme jet nipple joint inside be equipped with rather than sealing connection's bushing pipe with be formed with sealed annular space from top to bottom between the jet nipple joint be equipped with on the bushing pipe with the biography pressure hole of annular space intercommunication be equipped with many branch thin pipelines along circumference equipartition in the annular space, the import setting of branch thin pipeline is in the inside of annular space, the export of branch thin pipeline passes the lateral wall of jet nipple joint, branch thin pipeline pass through pipeline sealing joint with the lateral wall of jet nipple joint is connected be connected with the formula of advancing nozzle on the export of branch thin pipeline.
The inlet of the branch thin pipeline is arranged at the upper part of the annular space, and the outlet of the branch thin pipeline passes through the side wall of the jet nipple through the lower part of the annular space.
The pressure transfer hole of the liner tube is positioned at the upper part of the annular space.
The operation method of the injection self-advancing type multi-branch slim hole completion tool applied to the sand-prevention open hole well comprises the following steps that:
one) completing preparation work before going down the well: connecting the jet nipple at the lower end of the sand control screen pipe; a pressure transmission hole is formed in a set position of the central pipe column; performing a core test, and determining the duration of jet drilling operation according to the set drilling depth; secondly), inserting the central pipe column into the sand-prevention open hole, and then putting the tool and the sand-prevention screen pipe into a preset position of the sand-prevention open hole together to enable pressure transfer holes of the central pipe column to be communicated with pressure transfer holes on the liner pipe; and thirdly), pressing the interior of the central pipe column, implementing jet drilling operation, and completing the jet drilling operation according to the operation duration determined in the step one).
The operation method of the injection self-advancing multi-branch slim hole completion tool applied to the non-sand-prevention open hole well adopts the following steps that:
one) completing preparation work before going down the well: connecting the jet nipple to the lower end of a tail pipe of the casing; performing a core test, and determining the duration of jet drilling operation according to the set drilling depth; and II) pressing the interior of the casing pipe, implementing jet drilling operation, and completing the jet drilling operation according to the operation duration determined in the step I).
The invention has the advantages and positive effects that: by adopting a plurality of branch thin pipelines and utilizing a plurality of self-advancing nozzles to carry out rock breaking automatic drilling, a plurality of branch slim bores can be jetted and drilled in one operation, the yield of an oil well can be effectively increased, the depth of the branch slim bores can be controlled through the result of the earlier stage core test, a pollution zone can be effectively penetrated, an oil flow channel is dredged, and compared with conventional yield increasing operations such as acidification and fracturing, the method has the advantages of large treatment radius, controllable depth of the slim bores, simple and reliable construction operation and the like. The sand control screen pipe can be suitable for the well completion operation of an oil field, is particularly suitable for the well completion operation of a sand control well, can meet the operation requirement of the sand control well, can be matched with a sand control screen pipe for application, and meets the requirement of the stratum sand control operation. Compared with the prior similar products, the novel electric heating cooker has the characteristics of simple structure and safe and reliable performance.
Drawings
FIG. 1 is a schematic structural view of the present invention in use in a sand control well;
FIG. 2 is a schematic diagram of a branched tubule structure according to the present invention;
FIG. 3 is a schematic view of the self-advancing nozzle of the present invention.
In the figure: 1. the device comprises a jet nipple, 2, an annular space, 3, a branch fine pipeline, 4, a pipeline sealing joint, 5, a self-advancing nozzle, 5-1 of a reverse propulsion hole, 5-2 of a forward jet hole, 6, a liner pipe, 6-1 of a pressure transfer hole, 7 of a sand control screen pipe, 8, a central pipe column, 8-1 of a pressure transfer hole.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:
referring to fig. 1 to 3, a jet self-advancing multi-branch slim hole completion tool comprises a jet nipple 1 connected to the lower end of a completion string, a liner 6 sealingly connected to the jet nipple 1 is disposed inside the jet nipple 1, the liner 6 is disposed inside the jet nipple 1 and is in threaded connection with the jet nipple 1, an annular space 2 sealed up and down is formed between the liner 6 and the jet nipple 1, a pressure transfer hole 6-1 communicated with the annular space 2 is disposed on the liner 6, a plurality of branch slim lines 3 uniformly distributed along the circumferential direction are disposed in the annular space 2, an inlet of the branch slim line 3 is disposed inside the annular space 2, an outlet of the branch slim line 3 penetrates through the side wall of the jet nipple 1, the branch slim line 3 is sealingly connected to the side wall of the jet nipple 1 through a line seal joint 4, a self-feeding nozzle 5 is connected to the outlet of the branched thin pipe 3.
In this embodiment, in order to facilitate the drilling of the self-propelled nozzle 5, the inlet of the branched thin pipeline 3 is arranged at the upper part of the annular space 2, and the outlet of the branched thin pipeline 3 passes through the side wall of the jet nipple 1 through the lower part of the annular space 2. The pressure transfer holes 6-1 of the liner are located in the upper part of the annular space 2.
Referring to fig. 1, the completion string is a sand control screen 7. The operation method comprises the following steps:
one) completing preparation work before going down the well: connecting the jet nipple 1 to the lower end of a sand control screen pipe 7; and (3) arranging a pressure transfer hole 8-1 at a set position of the central pipe column 8, performing a core test, and determining the duration of jet drilling operation according to the set drilling depth.
Secondly), inserting the central pipe column 8 into the sand control open hole, and then putting the tool and the sand control screen pipe 7 into a preset position of the sand control open hole together to enable the pressure transfer holes 8-1 of the central pipe column to be communicated with the pressure transfer holes 6-1 on the liner pipe.
Thirdly), pressing the interior of the central pipe column 8, enabling hydraulic pressure to enter the branch thin pipeline 3 through a pressure transfer hole 8-1 of the central pipe column and a pressure transfer hole 6-1 of the liner pipe, and finally realizing automatic drilling of rock breaking through the self-propelled nozzle 5. The specific drilling process is as follows: the self-propelled nozzle 5 is provided with a forward jet hole 5-2 and a reverse propelling hole 5-1, the liquid flowing through the forward jet hole 5-2 of the self-propelled nozzle breaks rock, and the liquid flowing through the reverse propelling hole 5-1 of the self-propelled nozzle provides self-propelling force to push the nozzle and a thin pipeline to automatically drill. And D) completing jet drilling operation according to the operation duration determined in the step one), wherein drilling of a plurality of slim holes can be completed simultaneously by one operation. After the operation is finished, the center pipe string 8 is lifted up.
The operation method of the injection self-advancing multi-branch slim hole completion tool applied to the non-sand-prevention open hole well comprises the following steps:
one) completing preparation work before going down the well: connecting the jet nipple 1 to the lower end of a tail pipe of a casing; and (4) performing a core test, and determining the duration of jet drilling operation according to the set drilling depth.
Secondly), pressing the interior of the casing, enabling hydraulic pressure to enter the branch thin pipeline 3 through a pressure transfer hole 6-1 on the liner pipe, finally realizing automatic rock breaking drilling through a self-propelled nozzle 5, and completing jet drilling operation according to the operation duration determined in the first step).
The upper and lower buckle types of the tool are API standard buckle types, so that the tool is convenient to be connected with other tools on site.
Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and those skilled in the art can make many modifications without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (5)
1. The utility model provides a jet many branches slim hole completion tool of formula of advancing that sprays, includes the jet nipple joint and the branch fine line of being connected with the completion tubular column lower extreme, the export of branch fine line passes the lateral wall of jet nipple joint be connected with the self-advancing nozzle on the export of branch fine line, its characterized in that jet nipple joint inside is equipped with rather than sealing connection's bushing pipe the bushing pipe with it is sealed annular space from top to bottom to be formed with between the nipple joint to jet, be equipped with on the bushing pipe with the pressure transfer hole of annular space intercommunication be equipped with many along circumference equipartition branch fine line in the annular space, the import of branch fine line sets up in the inside of annular space, branch fine line pass through pipeline sealing joint with jet nipple joint's lateral wall is connected.
2. The jet self-advancing multi-lateral slim hole completion tool of claim 1, wherein the inlet of the lateral slim line is disposed at an upper portion of the annulus, and the outlet of the lateral slim line passes through a side wall of the jet nipple through a lower portion of the annulus.
3. The j et self-advancing, multi-lateral, slim hole completion tool of claim 1, wherein said liner pressure transfer ports are located in an upper portion of said annulus.
4. The method of claim 1 wherein the completion string is a sand screen,
the operation method comprises the following steps:
one) completing preparation work before going down the well: connecting the jet nipple at the lower end of the sand control screen pipe; a pressure transmission hole is formed in a set position of the central pipe column; performing a core test, and determining the duration of jet drilling operation according to the set drilling depth;
secondly), inserting the central pipe column into the sand-prevention open hole, and then putting the tool and the sand-prevention screen pipe into a preset position of the sand-prevention open hole together to enable pressure transfer holes of the central pipe column to be communicated with pressure transfer holes on the liner pipe;
and thirdly), pressing the interior of the central pipe column, implementing jet drilling operation, and completing the jet drilling operation according to the operation duration determined in the step one).
5. A method of operating the jet-autonomous multilateral slim hole completion tool of claim 1, in a non-sand control open hole well, wherein the completion string is a casing,
the operation method comprises the following steps:
one) completing preparation work before going down the well: connecting the jet nipple to the lower end of a tail pipe of the casing; performing a core test, and determining the duration of jet drilling operation according to the set drilling depth;
and II) pressing the interior of the casing pipe, implementing jet drilling operation, and completing the jet drilling operation according to the operation duration determined in the step I).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810405689.4A CN108729859B (en) | 2018-04-29 | 2018-04-29 | Injection self-advancing type multi-branch small borehole completion tool and operation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810405689.4A CN108729859B (en) | 2018-04-29 | 2018-04-29 | Injection self-advancing type multi-branch small borehole completion tool and operation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108729859A CN108729859A (en) | 2018-11-02 |
| CN108729859B true CN108729859B (en) | 2020-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810405689.4A Active CN108729859B (en) | 2018-04-29 | 2018-04-29 | Injection self-advancing type multi-branch small borehole completion tool and operation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113431497B (en) * | 2021-07-16 | 2023-12-22 | 辽宁工程技术大学 | Main drilling-supporting hole flexible steel pipe jet integrated mining drilling tool |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005108742A3 (en) * | 2004-05-06 | 2007-03-08 | Horizontal Expansion Tech Llc | Method and apparatus for completing lateral channels from an existing oil or gas well |
| EP2098679B1 (en) * | 2008-03-06 | 2010-11-03 | Rune Freyer | A method and device for making lateral openings out of a wellbore |
| CA2732675C (en) * | 2010-02-25 | 2013-11-05 | Coiled Tubing Specialties, Llc | Downhole hydraulic jetting assembly, and method for stimulating a production wellbore |
| CN105443085A (en) * | 2014-09-24 | 2016-03-30 | 中国石油化工股份有限公司 | Oil gas exploitation apparatus and method |
| CN107461151A (en) * | 2016-06-02 | 2017-12-12 | 中国石油化工股份有限公司 | The static pressure sidetracking device and remodeling method of pinniform Multilateral Wells |
-
2018
- 2018-04-29 CN CN201810405689.4A patent/CN108729859B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005108742A3 (en) * | 2004-05-06 | 2007-03-08 | Horizontal Expansion Tech Llc | Method and apparatus for completing lateral channels from an existing oil or gas well |
| EP2098679B1 (en) * | 2008-03-06 | 2010-11-03 | Rune Freyer | A method and device for making lateral openings out of a wellbore |
| CA2732675C (en) * | 2010-02-25 | 2013-11-05 | Coiled Tubing Specialties, Llc | Downhole hydraulic jetting assembly, and method for stimulating a production wellbore |
| CN105443085A (en) * | 2014-09-24 | 2016-03-30 | 中国石油化工股份有限公司 | Oil gas exploitation apparatus and method |
| CN107461151A (en) * | 2016-06-02 | 2017-12-12 | 中国石油化工股份有限公司 | The static pressure sidetracking device and remodeling method of pinniform Multilateral Wells |
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| CN108729859A (en) | 2018-11-02 |
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