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US20170067689A1 - Pumping equipment cooling system - Google Patents

Pumping equipment cooling system Download PDF

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Publication number
US20170067689A1
US20170067689A1 US15/120,858 US201415120858A US2017067689A1 US 20170067689 A1 US20170067689 A1 US 20170067689A1 US 201415120858 A US201415120858 A US 201415120858A US 2017067689 A1 US2017067689 A1 US 2017067689A1
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US
United States
Prior art keywords
exhaust pipe
flow path
output end
cooling tower
fans
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US15/120,858
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English (en)
Inventor
Jim B. Surjaatmadja
Stanley V. Stephenson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Halliburton Energy Services Inc
Original Assignee
Halliburton Energy Services Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Halliburton Energy Services Inc filed Critical Halliburton Energy Services Inc
Assigned to HALLIBURTON ENERGY SERVICES, INC. reassignment HALLIBURTON ENERGY SERVICES, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: STEPHENSON, STANLEY V., SURJAATMADJA, JIM B.
Publication of US20170067689A1 publication Critical patent/US20170067689A1/en
Abandoned legal-status Critical Current

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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
    • E21B36/00—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
    • E21B36/001—Cooling arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/0233—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with air flow channels
    • F28D1/024—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with air flow channels with an air driving element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • 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
    • E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/004—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for engine or machine cooling systems

Definitions

  • the present disclosure relates to methods and systems for use in subterranean operations. More particularly, the present disclosure relates to methods and systems of cooling equipment used in subterranean operations.
  • Pumping equipment is used in many operations associated with drilling and developing a hydrocarbon-producing wellbore within a formation.
  • pumping equipment typically generates a large amount of heat, which must be removed and dissipated with a cooling system.
  • Current cooling systems used with pumping equipment during an operation typically move air through the cooling system using large fans. These fans tend to consume a relatively high amount of energy. For example, some cooling systems can burn on the order of five-thousand gallons of fuel per year, per pump.
  • the fan systems used in a typical cooling system can create a large amount of noise pollution.
  • FIG. 1 is a cut-out side-view of a cooling system, incorporating certain aspects of the present disclosure.
  • FIG. 2 is a system diagram of a cooling system connected to the pumping system, in accordance with certain embodiments of the present disclosure.
  • FIG. 3A is a top-view cross-section of a cooling tower, in accordance with certain embodiments of the present disclosure.
  • FIG. 3B is a side-view cross-section of a cooling tower, in accordance with certain embodiments of the present disclosure.
  • FIG. 4 is a top-view of a plurality of air movement modules arranged in a matrix, in accordance with certain embodiments of the present disclosure.
  • FIG. 5 is a side-view cross-section of a cooling tower comprising an interior exhaust pipe, in accordance with certain embodiments of the present disclosure.
  • FIG. 6 is a top-view cross-section of a plurality of air movement modules arranged in a matrix and comprising an exhaust pipe, in accordance with certain embodiments of the present disclosure.
  • FIG. 7 is a cut-out side-view of a cooling tower, incorporating certain aspects of the present disclosure.
  • FIG. 8 is a top-view of a cooling tower comprising a plurality of shrouded fans, in accordance with certain embodiments of the present disclosure.
  • the present disclosure relates to methods and systems for use in subterranean operations. More particularly, the present disclosure relates to methods and systems of cooling equipment used in subterranean operations.
  • an example cooling system 100 comprising a cooling tower 110 , an array of fans 112 , an exhaust pipe 115 , and a radiator 120 .
  • the array of fans 112 may be vertically oriented within the cooling tower 110 and move air from a suction chamber 125 toward a cooling tower output end 130 . As a result, the array of fans 112 may pull air away from the radiator 120 .
  • the exhaust pipe 115 may connect to a pumping system and provide a conduit for exhaust gases generated and emitted by the pumping system. In certain embodiments, the exhaust pipe 115 may extend into the cooling tower 110 and direct exhaust gases through the cooling tower 110 , as will be described below in further detail.
  • the array of fans 112 may pull air from the suction chamber 125 , which, in turn, pulls air from the radiator 120 to cool the radiator 120 .
  • the radiator 120 may contain coolant received from a pumping system. Once circulated through the radiator 120 the coolant may be directed back to the pumping system.
  • the cooling tower 110 may be oriented vertically such that air is directed through the cooling tower 110 and expelled upwards. As such, the lighter hot air may help increase the air flow through the cooling tower 110 without requiring additional power consumption by the array of fans 112 .
  • the radiator 120 a may receive pump oil 152 from the pumping system to be cooled by the cooling system 100 .
  • the radiator 120 b may receive engine coolant 154 from the cooling system.
  • more than one radiator 120 a , 120 b may be used to circulate fluids through the cooling system 100 , for example, when it is desirable to cool more than one type of fluid simultaneously.
  • engine exhaust 156 generated by the pumping system may be routed by an exhaust pipe 415 through the suction chamber 125 and expelled through the array of fans 112 .
  • the array of fans 112 may be comprised of a plurality of bladeless fans 200 .
  • the bladeless fan 200 may comprise an output end 202 and an intake end 204 .
  • the bladeless fan 200 may comprise an outer wall 206 .
  • the bladeless fan 200 may comprise an outer chamber 210 and an inner flow path 215 , separated by a pressure partition 220 .
  • the pressure partition 220 may be of substantially axially aligned with, and concentric with, the outer wall 206 .
  • the pressure partition 220 may be connected to the outer wall at the output end 202 and at the intake end 204 .
  • Air within the outer chamber 210 may have an outer chamber air pressure and air within the inner flow path 215 may have an inner flow path air pressure.
  • the bladeless fan 200 may comprise an air compressor connection 224 connected to the outer chamber 210 to allow an air compressor 226 to supply pressurized air to the outer chamber 210 .
  • the air compressor 226 connection 224 may be placed on the intake end 204 or on the output end 202 .
  • the air compressor 226 may generate compressed air using a fuel powered motor and/or an electric powered motor.
  • the outer chamber air pressure may be substantially higher than the inner flow path air pressure.
  • the outer chamber air pressure may be between about 60 to about 100 psi greater than the inner flow path air pressure.
  • the pressure difference between the outer chamber air pressure and the inner flow path air pressure may be greater than 100 psi.
  • the outer chamber air pressure may be increased relative to the inner flow path air pressure to increased the air flow rate through the bladeless fan 200 .
  • the pressure partition 220 may comprise at least one air flow slot 225 .
  • the at least one air flow slot 225 may extend axially substantially along the entire perimeter of the pressure partition 220 . In certain embodiments, the at least one air flow slot 225 may be located towards the intake end 204 of the pressure partition 220 . In certain embodiments, the at least one air flow slot 225 may have a substantially consistent width of between about 0.02 inches to about 0.1 inches.
  • the air flow slot 225 may allow air movement between the outer chamber 210 and the inner flow path 215 . For example, air may flow from a relative high pressure zone in the outer chamber 210 to a relative low pressure zone in the inner flow path 215 .
  • the air flow slot 225 may be angled toward the output end 202 to direct air flowing from the outer chamber 210 toward the output end 202 . In certain embodiments, the air flow slot 225 may be defined by overlapping portions 222 , 223 of the pressure partition 220 .
  • a pressure difference between the outer chamber 210 and the inner flow path 215 may result in a high velocity air flow through the air flow slot 225 and into the inner flow path 215 .
  • pressurized air flows through the air flow slot 225 into the inner flow path 215 (shown by arrow 230 )
  • air within the inner flow path 215 may be dragged with this pressurized air toward the output end 202 (shown by arrow 232 ) through air-to-air frictional forces. Bernoulli forces may also cause air within the inner flow path 215 to move into the high velocity air flowing from the outer chamber 210 through the air flow slot 225 .
  • Bernoulli's principle states that increased velocity of a fluid results in decrease in pressure, as would be recognized by one of ordinary skill in the art with the benefit of the present disclosure.
  • air within the inner flow path may be pulled into the high velocity air flow.
  • movement of air within the inner flow path 215 toward the output end 202 may reduce the inner flow path air pressure, pulling air from the intake end 204 , which may be supplied from the suction chamber.
  • the bladeless fan is shown by example with a hexagon shape, the bladeless fan 200 is not intended to be limited to any specific shape. For example, may form a square, pentagon, heart shape, or any other geometric shape so desired.
  • each bladeless fan 200 may engage the outer wall 206 of at least one adjacent bladeless fan 200 .
  • adjacent bladeless fans 200 may share an outer wall 206 .
  • adjacent bladeless fans 200 may share an outer chamber 210 , as shown by example in FIG. 7 .
  • the plurality of bladeless fans 200 may be configured in series with each other, in parallel with each other, or in a combination of both parallel and series configurations. Further addition of bladeless fans 200 , in series or in parallel, may provide increased air flow rate through the cooling tower. For example, the addition of one or more bladeless fans 200 in series may increase the air flow velocity through the cooling tower 110 , while the addition of one or more bladeless fans 200 in parallel may provide increased air flow area through the cooling tower 110 .
  • each bladeless fan 200 may be connected to and associated with an individual air compressor to supply compressed air to the outer chamber through the air compressor connector.
  • the power of each bladeless fan may be controlled by adjusting the power of the compressor associated with that bladeless fan (or turning the compressor off completely).
  • the volumetric air flow rate through the array of fans 112 may be fine tuned in response to the requirements of the cooling system. For example, while the equipment to be cooled is powering down, in an idle state, or operating at reduced capacity, the volumetric air flow rate through the array of fans 112 may be reduced by powering off selective air compressors. Likewise, if the equipment to be cooled is running at an increased capacity or generating a higher level of heat, selective air compressors may be adjusted to increase air pressure within the associated bladeless fan's outer chamber.
  • the air compressor 226 may be connected to the outer chamber of more than one bladeless fan.
  • the air compressor 226 connected to the outer chamber 610 may supply pressurized air to each bladeless fan 200 sharing the outer chamber 610 .
  • each bladeless fan 200 sharing an air compressor 226 may be in a bladeless fan group and be controlled in tandem with each other bladeless fan in the group.
  • each bladeless fan 200 may be oriented vertically within the cooling tower 110 , such that the intake end 204 of each bladeless fan 200 draws air from the suction chamber of the cooling tower 110 .
  • the flow of air through the bladeless fan may be further aided by rising heat (which is less dense and more buoyant than cooler air), which may reduce the energy required to move a given volume of air upward through the cooling tower 110 .
  • the cooling system may further comprise an exhaust pipe 410 axially located in the inner flow path 215 of a bladeless fan 200 .
  • the exhaust pipe 410 may comprise an exhaust pipe wall 415 and an exhaust pipe outlet 420 .
  • the exhaust pipe wall 415 may create an exhaust flow path 435 that may provide a conduit for exhaust gases expelled by the pumping equipment.
  • the exhaust pipe outlet 420 may direct exhaust gases toward the cooling tower output end 202 .
  • the exhaust pipe 410 may extend through substantially the center of the bladeless fan 200 .
  • the exhaust pipe 410 may comprise a muffler.
  • the exhaust pipe wall 415 may be heated by hot gases flowing through the exhaust pipe 410 . A portion of this heat may be transferred from the exhaust pipe wall 415 to the surrounding air located within the inner flow path 215 , contributing to the heat efficiency caused by the increased buoyancy of air within the inner flow path 215 .
  • Gas may exit the exhaust pipe outlet 420 at a velocity greater than the velocity of the surrounding air within the inner flow path 215 .
  • the exhaust pipe outlet 420 may comprise a nozzle 430 .
  • the nozzle 430 may comprise a nozzle flow path with a diameter that is less than an exhaust pipe diameter. As such, the nozzle 430 may increase the velocity of gas exiting the exhaust pipe 420 .
  • High velocity air exiting the exhaust pipe outlet 420 may pull air through the cooling tower 110 by means of friction, further aiding the movement of air through the cooling tower 110 (similar to the air-to-air friction effect created by the bladeless fan as described above in reference to FIGS. 3A and 3B .
  • the exhaust pipe wall 415 may comprise one or more heat exchange fins 425 , as shown by example in the top-down view shown in FIG. 6 .
  • the heat exchange fins 425 may be mounted on the exhaust pipe wall 415 , or built into the exhaust pipe wall 415 .
  • the heat exchange fins 425 may comprise a heat conductive substance, such as copper or other substance suitable to pull heat from the exhaust pipe wall 415 as would be recognized by one of ordinary skill in the art with the benefit of this disclosure.
  • the heat exchange fins 425 may aid the transfer heat from the exhaust pipe wall 415 to the air in the inner flow path 215 by conducting heat from hot gases within the exhaust pipe 410 toward the air within the inner flow path 215 .
  • the heat exchange fins 425 may extend outward from the exhaust pipe wall 415 , increasing the surface area in contact with air within the inner flow path 215 .
  • the heat exchange fins 425 may extend inward from the exhaust pipe wall 415 , creating greater surface area for heat exchange between hot gas contained within the exhaust pipe 410 and the exhaust pipe wall 415 .
  • heat exchange fins 425 may extend inward and outward from the exhaust pipe wall 415 , as shown by example in FIG. 6 .
  • the present disclosure is not intended to be limited to the number or shape of heat exchange fins 425 shown in FIG. 6 . Indeed, any number and configuration of heat exchange fins 425 may be used to aid heat transfer toward air within the inner flow path 215 .
  • the array of fans 112 may be comprised of bladeless fans 200 having varied shapes and sizes.
  • the array of fans 112 may be configured with one or more primary bladeless fans 510 , and one or more secondary bladeless fans 515 .
  • the bladeless fan array may comprise one or more tertiary fans 520 .
  • FIG. 7 shows a cut-out side-view of the cooling tower 110 showing an embodiment comprising an array of fans 112 comprising a plurality of bladeless fans 200 and an exhaust pipe 410 extending vertically through the array of fans 112 .
  • the array of fans 112 may comprise a shared outer chamber 610 located between adjacent bladeless fans 200 .
  • a single air compressor may be connected to the shared outer chamber 610 to supply more than one bladeless fan 200 connected to the shared outer chamber 610 .
  • FIG. 8 shows a top-view of an embodiment of the cooling tower 110 , where the array of fans 112 comprises a plurality of shrouded fans 700 .
  • Each of the plurality of shrouded fans 700 comprises a plurality of blades 710 extending from a center 715 .
  • the plurality of blades 710 may be rotary type blades or non-rotary type blades.
  • Each of the plurality of blades comprises a termination end 720 connected to a cylindrical duct 725 .
  • a motor may be connected to the center 715 to rotate the shrouded fan 700 .
  • the cylindrical duct 725 may increase the efficiency of the shrouded fan 700 as would be recognized by one of ordinary skill in the art with the benefit of the present disclosure.
  • cooling system may be fine tuned and adjusted in response to changes in cooling requirements by turning on or off individual fans in the array of fans as necessary.
  • the array of fans may move air through the cooling tower to cool the radiator more efficiently.
  • the array of fans may also reduce the level of noise emitted by the cooling system.
  • routing the exhaust pipe through the vertical cooling tower may further aid air movement through the cooling system and reduce the energy required to cool the pumping system.
  • compositions and methods are described in terms of “comprising,” “containing,” or “including” various components or steps, the compositions and methods can also “consist essentially of” or “consist of” the various components and steps.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US15/120,858 2014-03-27 2014-03-27 Pumping equipment cooling system Abandoned US20170067689A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2014/031928 WO2015147819A1 (fr) 2014-03-27 2014-03-27 Système de refroidissement d'équipement de pompage

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US20170067689A1 true US20170067689A1 (en) 2017-03-09

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WO (1) WO2015147819A1 (fr)

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US10851638B2 (en) * 2015-03-04 2020-12-01 Stewart & Stevenson Llc Well fracturing systems with electrical motors and methods of use
US20240344427A9 (en) * 2022-08-08 2024-10-17 Stewart & Stevenson Llc Modular integrated cooling system
US20250116365A1 (en) * 2023-10-09 2025-04-10 Stewart & Stevenson Llc Adjustable blender pump mount for hydraulic fracturing

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US11164560B2 (en) 2016-10-11 2021-11-02 Halliburton Energy Services, Inc. Well site noise control

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