US20130189123A1 - Hydraulic Powered Downhole Pump - Google Patents

Hydraulic Powered Downhole Pump Download PDF

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Publication number
US20130189123A1
US20130189123A1 US13/357,730 US201213357730A US2013189123A1 US 20130189123 A1 US20130189123 A1 US 20130189123A1 US 201213357730 A US201213357730 A US 201213357730A US 2013189123 A1 US2013189123 A1 US 2013189123A1
Authority
US
United States
Prior art keywords
housing
jet pump
carrier assembly
pump assembly
carrier
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
US13/357,730
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English (en)
Inventor
Charles O. Stokley
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.)
TECH FLO CONSULTING LLC
Original Assignee
STOKLEY PETROLEUM TECHNOLOGY 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 STOKLEY PETROLEUM TECHNOLOGY Inc filed Critical STOKLEY PETROLEUM TECHNOLOGY Inc
Priority to US13/357,730 priority Critical patent/US20130189123A1/en
Assigned to STOKLEY PETROLEUM TECHNOLOGY, INC. reassignment STOKLEY PETROLEUM TECHNOLOGY, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: STOKLEY, CHARLES O.
Priority to CA2862627A priority patent/CA2862627C/fr
Priority to MX2014009041A priority patent/MX363140B/es
Priority to PCT/US2013/022756 priority patent/WO2013112593A2/fr
Publication of US20130189123A1 publication Critical patent/US20130189123A1/en
Assigned to TECH FLO CONSULTING, LLC reassignment TECH FLO CONSULTING, LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: STOKLEY PETROLEUM TECHNOLOGY, INC.
Priority to US14/633,978 priority patent/US20150233221A1/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
    • 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
    • F04F5/46—Arrangements of nozzles

Definitions

  • This invention relates to a hydraulically powered jet pump for placement downhole in a well for the purpose of producing fluids (oil, gas, and/or water) from a formation which has special features that provide flexibility and ease of operations in various types of well applications.
  • the operation of a jet pump is well known in the art and as such utilizes high pressure fluid pumped from the surface to a small interior diameter nozzle where the flow is converted to high velocity and lower pressure. As the fluid flow departs the nozzle, pressure at the exit point is greatly reduced thus drawing in fluids from an exterior source such as an oil and gas producing formation. The mixture is then flowed through a mixing tube which has a sequentially increasing interior diameter thus reducing velocity and increasing pressure. As the fluid mixture departs the pump into the well annulus, a sufficient pressure is available to cause the fluid mixture to return to the surface.
  • the patent to Coleman U.S. Pat. No. 5,372,190 discloses a jet pump that includes a jet orifice and diffuser portion not numbered in FIG. 9 and a second diffuser member 148 that is attached to a tubular member 164 that includes an alignment edge 166 that cooperates with pin 170.
  • the jet orifice and diffuser portion In order to remove the assembly, the jet orifice and diffuser portion must first be removed and then the second member 148 is retrieved using a tool that is lowered by a wire line or coiled tubing and that engages profile 204.
  • the patent to Batho et al U.S. Pat. No. 7,114,572 discloses a jet pump 50 and a subsurface safety valve 52.
  • 7,219,737 discloses generally a jet pump 44 that can be moved upwardly in tubing into a retrievable position by fluid injected into the casing of a well.
  • Jackson U.S. Pat. No. 7,909,089 discloses a jet pump 110 that can be configured to pump well fluid up through a tubing string.
  • a jet pump includes a housing and a carrier.
  • the housing interior is of a constant diameter so that the carrier can easily be inverted and thus provide a means to use the pump as described above but with high pressure power fluid being conveyed down the annulus between the outer diameter of the inner tubular member and the well casing interior with the power fluid and formation production returning to the surface through the interior of the inner tubular.
  • This flow method is preferred in wells where the produced fluid is corrosive and therefore not desirable to contact the well casing interior or in wells where a failsafe safety shut-in valve is desired or required.
  • This configuration is typically called a “reverse flow” pump and requires wireline operations to run and retrieve.
  • the novel design of the reverse flow pump and latching device allows for placement of the pump into the well by simply dropping or pumping the assembly down to seat in the proper position and to latch into position to prevent the pump from being displaced upward when power fluid pressure is applied to the annulus.
  • the novel design of the latching device is critical to the assembly and is activated to the locked position by means of pressure applied to the interior tubing and thus temporarily plugged assembly.
  • a novel mechanism is also provided that allows for retrieval of the pump without the use of a wireline conveyed pulling tool thus greatly reducing the operating cost normally associated with retrieval of a reverse flow pump.
  • the retrieval mechanism consists of a pulling tool with a seal cup positioned above. The mechanism is then pumped down the interior tube until it encounters and latches onto the fishing neck of the pump lock. Pressure is then applied to the annulus and causes an upward force via the seal cups to move the release sleeve upward and release the latching dogs and thus allowing the pump and latch assembly to be forced back to the surface thru continued circulation where the assembly can be captured at the surface and removed for design changes or repairs.
  • the housing can then be of simple design with enlarged interior diameter versus exterior diameter as compared to other tools on the market.
  • the larger exterior diameter of the carrier therefore allows the use of larger nozzle and mixing tube diameters and thus increased production rates from a formation.
  • existing tools of a 3′′ to 3.5′′ outside diameter are limited to production rates in the maximum range of 100 gallons per minute whereas this novel design can easily achieve rates in excess of 200 gallons per minute.
  • each well be equipped with a failsafe downhole valve to prevent the flow of oil and gas to the surface in case of a failure of the surface valving or integrity of the well.
  • This tool configuration can include such a device when required or desired and operates by being open only when power fluid pressure is applied and automatically closes anytime power fluid pressure is reduced.
  • Another advantage of the safety device is that there are no depth limits at which the valve can be placed as is the case in safety valves that are operated by a special tubular line run from the surface to the valve and the valve operated by applying pressure to the line and thus to the valve.
  • Another feature of this novel design overcomes the typical problem associated with damaging or washing seals such as “O” rings out of their grooves.
  • standard seal design there is a requirement to provide some amount of “squeeze” as a seal enters into a bore such that the interference creates the initial seal between the part containing the seal and the receiving device bore.
  • Most seals are activated to an improved “squeeze” when pressure is applied.
  • each entry and exit of a seal from the bore has potential to damage the seal and eliminate or drastically reduce the interference and the efficiency of the initial seal.
  • the initial seal is critical in order for applied differential pressure to further activate the seat.
  • Shape memory material can be manufactured in a specific shape at a base temperature and then formed into a different shape at a different temperature. It is therefore feasible to manufacture a shape memory material with a size that would create interference between the carrier and housing bore at a temperature such as 150 degree F., typical of even shallow oil and gas wells, but would not have interference at a lower temperature. Once the tool is placed into the housing bore without interference and the well temperature increases to above 150 degrees F., the material returns to the original manufactured shape which does provide interference and thus sealing capability. Using a corrosion resistant metal could greatly enhance the life of the seals in wells where corrosive fluids are produced.
  • FIG. 1 is a cross sectional view of the housing according to an embodiment of the invention.
  • FIG. 1 a is a view along line A-A of FIG. 1 .
  • FIG. 2 is a cross sectional view of the carrier assembly according to an embodiment of the invention.
  • FIG. 3 is a cross sectional view of an embodiment of the jet pump assembly.
  • FIG. 4 is cross sectional view of a second embodiment of the jet pump assembly.
  • FIG. 4 a is a cross sectional view of the locking mechanism in a locked position.
  • FIG. 4 b is a cross sectional view of a fishing tool engaging the upper portion of the jet pump assembly.
  • FIG. 4 c is a view of the upper portion of the jet pump assembly as pressure is applied from above to pump out the assembly.
  • FIG. 5 is a schematic view of a typical well installation.
  • FIG. 5 shows a typical well construction utilizing a hydraulic jet pump and associated completion equipment.
  • a well normally has a casing string 11 extending from surface to or below the producing formation 12 and is cemented in place as shown at 13 . Slots or perforations 14 in the casing allow flow of production fluids from the formation into the inside of the casing 11 .
  • An additional tubular member, called tubing 15 extends from surface to a packer 16 which seals the annulus 17 between the tubing 15 and casing 11 .
  • a jet pump housing 18 is run as an integral part of the tubing 15 and is positioned above the packer. The housing accepts the pump carrier 19 with nozzle and mixing tube components and thereby provides the means to artificially lift produced fluids from the lower part 20 of the well to the surface.
  • FIG. 1 is a cross section of a housing 18 which is included by threaded means to the tubing 15 and positioned above the packer 16 .
  • a top sub 21 connects the tubing to the housing by various types of threads common for use in oil and gas wells.
  • the top sub is connected by threads to a sleeve 22 used for correct spacing of the various seal bores of the housing.
  • the lower end of the sleeve is connected to the exit port sub 23 .
  • the exist port sub is connected to a lower sub 24 which in turn is connected by threads to the well tubing 15 .
  • FIG. 1 Included in FIG. 1 is a restricted or smaller inside diameter shoulder 29 for insertion and restriction of a standing valve (not shown).
  • a guide pin 28 extends into the interior of the seal bore of the exit port sub for contact with a helical surface 40 of the lower end of the carrier and thus assuring proper orientation of the carrier when positioned inside the housing.
  • an eccentric flow path 25 extends partially around the inside diameter of the exit port sub and provides a means for produced fluids to flow from the formation, thru the interior of the tubing and alongside the carrier to the inlet ports 33 of the carrier when the carrier is in its proper position inside the housing.
  • a port 26 in the exit port sub 23 provides a communication means from the exit flow path 49 of the carrier, thru the exit port sub wall and into the annulus 19 of the well.
  • a fishing neck 31 is provided on the top of the carrier assembly for convenience of retrieval from the well using well known wireline conveyed fishing tools which are designed to latch onto the shoulder 37 and retrieve the carrier assembly from the well.
  • a shoulder 31 a at the lower end of the fishing neck is slightly larger than the outside diameter of the carrier body 32 and provides a stopping means to properly position the carrier assembly inside the housing as it cannot pass the shoulder 27 of FIG. 1 .
  • the body 32 of the carrier is connected by threads 36 to the fishing neck 31 on the upper end and the lower carrier sub 39 on the lower end.
  • Internal to the body are the critical components of the pump, nozzle 34 and mixing tube 35 which are each positioned properly by an interference fit shoulder 34 a and 35 a respectively.
  • a series of ports 33 in the wall of the body allow produced fluids to enter into the interior of the body at the outlet end of the nozzle where a low pressure area has been created as a result of the extremely high velocity exiting from the tip of the nozzle. Fluid pumped down the interior of the tubing and into the interior of the carrier 46 passes into the tapered flow path 45 of the nozzle where pressure is decreased and velocity increased as well known in the art.
  • a tapered lower end of the lower carrier body 40 engages the guide pin 28 extending into the interior of the housing and automatically follows the taper and into the guide slot 41 to properly orient the carrier such that the exit ports of the lower carrier body and exit port sub are aligned.
  • an additional seal such as an “O” Ring 34 a may be provided as a backup sealing mechanism. Additional seals 48 a are required to seal above and below the exit port of the carrier and the exit ports of the exit port sub 23 .
  • a check valve 79 as shown in FIG. 3 is required to prevent produced and power fluids from flowing back into the formation when pumping has ceased.
  • a fish neck 72 is provided to allow retrieval of the standing valve in such cases as access to the formation is desired.
  • a shoulder 73 is provided on the standing valve to prevent the valve from passing through the housing seat 29 and provides a metal to metal seal between the standing valve and the housing.
  • an equalizing mechanism is provided such as a sealed piston 74 which is held in place by shear pins 75 .
  • FIGS. 4 , 4 a , 4 b , and 4 c depict the sequential operation of an embodiment of the novel reverse flow pump.
  • a temporary device such as a dissolvable ball 51 , rupture disk or lightweight ball is provided to seal the interior diameter of a sliding sleeve 81 with Seal 81 a which includes a fishing neck 31 and thereby provides a piston area to generate a force when pressure is applied to shear the retaining pin 53 and move the sleeve and fishing neck downward, forcing the larger diameter shoulder 54 under the dogs 56 whereby the dogs are moved into the groove 21 a of the top sub 21 of the pump housing, as shown in FIG. 4 a.
  • the carrier body 36 containing the nozzle 34 and mixing tube 35 is inverted thereby providing a pumping means wherein the power fluid is pumped down the annulus between the tubing 15 and the casing 11 and produced fluid mixture returns to surface up the tubing.
  • FIG. 4 a shows the assembly locked in position after applying pressure above the pump and forcing the shoulder 54 under the dogs 56 and forcing the dogs outward and into the groove 21 a of the top sub 21 .
  • a variety of means can be added to the end area of the smaller outside diameter section 55 of the fishing neck 31 to provide some resistance to inadvertent upward movement of the fishing neck during operations of the pump.
  • FIG. 4 b depicts the initial step of retrieval of the pump carrier wherein a standard type fishing tool 62 which is modified to contain a seal cup 61 or other sealing mechanism to at least partially seal between the fishing tool and tubing interior wall.
  • the fishing tool and seat cup are then dropped into the tubing and allowed to fall to the top of the pump or the assembly can be pumped into position.
  • the end of the fishing tool contains dog latching arms and a shoulder 63 that is allowed to expand over the pump fishing neck 31 and latch underneath the fishing neck shoulder 37 .
  • the fishing tool is also provided with a secondary fishing neck 62 a in case operational problems require that conventional wireline operations are used to retrieve the fishing tool or pump.
  • FIG. 4 c depicts the released position of the pump wherein pressure is applied to the annulus in the same manner as when the pumping operations were active.
  • the applied pressure acting against the seal cup creates an upward force that move the fishing neck 31 and the large diameter section 54 upward and out from under the dogs 55 , allowing the dogs to retract from the groove 21 a and releasing the locking mechanism to allow upward movement of the entire assembly.
  • Continued circulation of fluids down the annulus and up the tubing causes the tool to be pumped to the surface where a variety of prior art and known methods allows the tool to be captured and removed from the well for repairs, redesign or other modifications.
  • Seals 48 a may be made from a swellable elastomer material or from a shape memory material. As discussed above, the seals may be initially sized so that the seals are not deformed as the carrier assembly is positioned within the housing. Rather, upon exposure to well fluids or elevated temperatures, the seal increases in size to form a seal between the housing and the carrier assembly.

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  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (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)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US13/357,730 2012-01-25 2012-01-25 Hydraulic Powered Downhole Pump Abandoned US20130189123A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US13/357,730 US20130189123A1 (en) 2012-01-25 2012-01-25 Hydraulic Powered Downhole Pump
CA2862627A CA2862627C (fr) 2012-01-25 2013-01-23 Pompe hydraulique de fond de trou
MX2014009041A MX363140B (es) 2012-01-25 2013-01-23 Bomba de fondo de pozo accionada hidraúlica.
PCT/US2013/022756 WO2013112593A2 (fr) 2012-01-25 2013-01-23 Pompe hydraulique de fond de trou
US14/633,978 US20150233221A1 (en) 2012-01-25 2015-02-27 Hydraulic Powered Downhole Pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13/357,730 US20130189123A1 (en) 2012-01-25 2012-01-25 Hydraulic Powered Downhole Pump

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US14/633,978 Continuation US20150233221A1 (en) 2012-01-25 2015-02-27 Hydraulic Powered Downhole Pump

Publications (1)

Publication Number Publication Date
US20130189123A1 true US20130189123A1 (en) 2013-07-25

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US13/357,730 Abandoned US20130189123A1 (en) 2012-01-25 2012-01-25 Hydraulic Powered Downhole Pump
US14/633,978 Abandoned US20150233221A1 (en) 2012-01-25 2015-02-27 Hydraulic Powered Downhole Pump

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US14/633,978 Abandoned US20150233221A1 (en) 2012-01-25 2015-02-27 Hydraulic Powered Downhole Pump

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US (2) US20130189123A1 (fr)
CA (1) CA2862627C (fr)
MX (1) MX363140B (fr)
WO (1) WO2013112593A2 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180172020A1 (en) * 2016-12-15 2018-06-21 Saudi Arabian Oil Company Wellbore tools including smart materials
US11371326B2 (en) 2020-06-01 2022-06-28 Saudi Arabian Oil Company Downhole pump with switched reluctance motor
US11499563B2 (en) 2020-08-24 2022-11-15 Saudi Arabian Oil Company Self-balancing thrust disk
US11591899B2 (en) 2021-04-05 2023-02-28 Saudi Arabian Oil Company Wellbore density meter using a rotor and diffuser
US11644351B2 (en) 2021-03-19 2023-05-09 Saudi Arabian Oil Company Multiphase flow and salinity meter with dual opposite handed helical resonators
US11913464B2 (en) 2021-04-15 2024-02-27 Saudi Arabian Oil Company Lubricating an electric submersible pump
US11920469B2 (en) 2020-09-08 2024-03-05 Saudi Arabian Oil Company Determining fluid parameters
US11994016B2 (en) 2021-12-09 2024-05-28 Saudi Arabian Oil Company Downhole phase separation in deviated wells
US12085687B2 (en) 2022-01-10 2024-09-10 Saudi Arabian Oil Company Model-constrained multi-phase virtual flow metering and forecasting with machine learning
CN119352936A (zh) * 2024-12-30 2025-01-24 西安石油大学 一种可溶井下节流器
CN120007640A (zh) * 2023-11-14 2025-05-16 中国石油天然气股份有限公司 一种管式泵下射流增效器

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105840560B (zh) * 2016-05-20 2017-11-17 中国石油集团渤海钻探工程有限公司 一种连续油管排液泵
CA3115460A1 (fr) * 2018-10-04 2020-04-09 George E. Harris Pompe a jet
CN110979962B (zh) * 2019-12-05 2021-11-30 中国石油化工股份有限公司 一种防倒灌的油嘴套装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4753577A (en) * 1986-11-03 1988-06-28 Robert F. Wright Fluid powered retrievable downhole pump
US5083609A (en) * 1990-11-19 1992-01-28 Coleman William P Down hole jet pump retrievable by reverse flow and well treatment system
US5372190A (en) * 1993-06-08 1994-12-13 Coleman; William P. Down hole jet pump
US6926080B2 (en) * 2000-05-31 2005-08-09 Zinoviy Dmitrievich Khomynets Operation method of an oil well pumping unit for well development and device for performing said operation method
US20070187111A1 (en) * 2004-04-05 2007-08-16 Bj Services Company Apparatus and method for dewatering low pressure gradient gas wells
US20100236794A1 (en) * 2007-09-28 2010-09-23 Ping Duan Downhole sealing devices having a shape-memory material and methods of manufacturing and using same

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* Cited by examiner, † Cited by third party
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FR2577611B1 (fr) * 1985-02-14 1988-04-08 Inst Francais Du Petrole Dispositif pour mettre en place un outil ou instrument dans une conduite utilisable notamment pour l'exploitation en fond de puits de pompes hydrauliques autonomes, en production par l'interieur d'un tubing
US6837313B2 (en) * 2002-01-08 2005-01-04 Weatherford/Lamb, Inc. Apparatus and method to reduce fluid pressure in a wellbore
GB2402443B (en) * 2002-01-22 2005-10-12 Weatherford Lamb Gas operated pump for hydrocarbon wells
US7909089B2 (en) * 2007-06-21 2011-03-22 J & J Technical Services, LLC Downhole jet pump

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4753577A (en) * 1986-11-03 1988-06-28 Robert F. Wright Fluid powered retrievable downhole pump
US5083609A (en) * 1990-11-19 1992-01-28 Coleman William P Down hole jet pump retrievable by reverse flow and well treatment system
US5372190A (en) * 1993-06-08 1994-12-13 Coleman; William P. Down hole jet pump
US6926080B2 (en) * 2000-05-31 2005-08-09 Zinoviy Dmitrievich Khomynets Operation method of an oil well pumping unit for well development and device for performing said operation method
US20070187111A1 (en) * 2004-04-05 2007-08-16 Bj Services Company Apparatus and method for dewatering low pressure gradient gas wells
US20100236794A1 (en) * 2007-09-28 2010-09-23 Ping Duan Downhole sealing devices having a shape-memory material and methods of manufacturing and using same

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180172020A1 (en) * 2016-12-15 2018-06-21 Saudi Arabian Oil Company Wellbore tools including smart materials
US11371326B2 (en) 2020-06-01 2022-06-28 Saudi Arabian Oil Company Downhole pump with switched reluctance motor
US11499563B2 (en) 2020-08-24 2022-11-15 Saudi Arabian Oil Company Self-balancing thrust disk
US11920469B2 (en) 2020-09-08 2024-03-05 Saudi Arabian Oil Company Determining fluid parameters
US11644351B2 (en) 2021-03-19 2023-05-09 Saudi Arabian Oil Company Multiphase flow and salinity meter with dual opposite handed helical resonators
US11591899B2 (en) 2021-04-05 2023-02-28 Saudi Arabian Oil Company Wellbore density meter using a rotor and diffuser
US11913464B2 (en) 2021-04-15 2024-02-27 Saudi Arabian Oil Company Lubricating an electric submersible pump
US11994016B2 (en) 2021-12-09 2024-05-28 Saudi Arabian Oil Company Downhole phase separation in deviated wells
US12085687B2 (en) 2022-01-10 2024-09-10 Saudi Arabian Oil Company Model-constrained multi-phase virtual flow metering and forecasting with machine learning
CN120007640A (zh) * 2023-11-14 2025-05-16 中国石油天然气股份有限公司 一种管式泵下射流增效器
CN119352936A (zh) * 2024-12-30 2025-01-24 西安石油大学 一种可溶井下节流器

Also Published As

Publication number Publication date
CA2862627C (fr) 2019-04-02
MX363140B (es) 2019-03-12
MX2014009041A (es) 2015-01-26
WO2013112593A3 (fr) 2015-06-11
CA2862627A1 (fr) 2013-08-01
US20150233221A1 (en) 2015-08-20
WO2013112593A2 (fr) 2013-08-01

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AS Assignment

Owner name: STOKLEY PETROLEUM TECHNOLOGY, INC., TEXAS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:STOKLEY, CHARLES O.;REEL/FRAME:027591/0733

Effective date: 20120125

AS Assignment

Owner name: TECH FLO CONSULTING, LLC, TEXAS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:STOKLEY PETROLEUM TECHNOLOGY, INC.;REEL/FRAME:032823/0866

Effective date: 20140430

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION