CN113756751A - Hydraulic pumping unit in well - Google Patents
Hydraulic pumping unit in well Download PDFInfo
- Publication number
- CN113756751A CN113756751A CN202110640751.XA CN202110640751A CN113756751A CN 113756751 A CN113756751 A CN 113756751A CN 202110640751 A CN202110640751 A CN 202110640751A CN 113756751 A CN113756751 A CN 113756751A
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- oil
- cylinder
- hydraulic
- rod
- pump
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- 238000005086 pumping Methods 0.000 title claims abstract description 22
- 239000003921 oil Substances 0.000 claims abstract description 93
- 239000003129 oil well Substances 0.000 claims abstract description 27
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 23
- 238000006073 displacement reaction Methods 0.000 claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- 239000010734 process oil Substances 0.000 claims abstract description 14
- 230000008878 coupling Effects 0.000 claims abstract description 13
- 238000010168 coupling process Methods 0.000 claims abstract description 13
- 238000005859 coupling reaction Methods 0.000 claims abstract description 13
- 241000191291 Abies alba Species 0.000 claims abstract description 11
- 238000003825 pressing Methods 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010779 crude oil Substances 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims 1
- 238000000605 extraction Methods 0.000 abstract description 4
- 238000010793 Steam injection (oil industry) Methods 0.000 abstract description 2
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- 230000010354 integration Effects 0.000 abstract description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract 1
- 239000010931 gold Substances 0.000 abstract 1
- 229910052737 gold Inorganic materials 0.000 abstract 1
- 239000002689 soil Substances 0.000 abstract 1
- 230000004888 barrier function Effects 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
Images
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
- E21B43/129—Adaptations of down-hole pump systems powered by fluid supplied from outside the borehole
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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)
- Actuator (AREA)
Abstract
The invention relates to an in-well hydraulic pumping unit which comprises a displacement sensor electronic bin, a cylinder cover, a hydraulic oil channel, a cylinder cover pressing plate, a vent hole, a crude oil outlet, a magnetic ring, a piston, a hydraulic oil communicating port, a connecting ring, a sensor rod, an oil cylinder body, a guide post, an oil cylinder bottom cover, an oil rod coupling, an oil rod, an oil pipe coupling, an oil well pump, a sleeve, a production tree, a process oil pipe, a cylinder cover lifting ring and a hydraulic oil source. The process oil pipe is made of steel, the inner diameter of the process oil pipe is larger than the outer diameter of the oil cylinder, and an annular space is formed to be an oil extraction channel. The Christmas tree is an interface of an oil well to the outside and is provided with a valve, a safety system and the like. The displacement sensor consists of an electronic bin, a magnetic ring and a sensor rod, and the stroke parameter of the running position of the piston of the oil well pump in the oil well pump can be accurately adjusted through the oil cylinder displacement sensor. The hydraulic pumping unit in the well drives the rod pump to replace an electric submersible pump, the oil well pump does not need to be lifted out during steam injection, the injection and production integration can be realized, and the hydraulic pumping unit can be used in offshore cluster wells and regions with small soil and gold inches.
Description
Technical Field
The invention belongs to the field of oil field oil extraction machinery, and particularly relates to an in-well hydraulic pumping unit.
Background
At present, offshore oil production platform equipment at home and abroad is widely used as an electric submersible pump, which is a multistage centrifugal pump, 1800V high-voltage electric drive downhole motor is conveyed from the ground by an armored cable to rotate to drive a impeller to pump crude oil, and the offshore oil production platform equipment is characterized by high efficiency, simple ground equipment and suitability for small-area multi-well layout of the oil production platform.
Along with the development of oil fields, a large number of thick oil blocks need to be exploited for use, an electric submersible pump cannot normally work in the thick oil blocks, steam needs to be injected into an oil well to melt and dilute thick oil for exploitation, the electric submersible pump is not resistant to temperature, the pump needs to be taken out of a wellhead and then taken down after being cooled, the pump is taken down, the operation time and the cost are increased, an armored cable is frequently taken down and is easily damaged mechanically, a new oil exploitation process matching technology needs to be developed to meet the requirements of the oil well, ideally, the electric submersible pump is replaced by a rod pump which is a plunger type oil well pump commonly used for a land oil well, the rod type pump can resist the steam temperature, the electric submersible pump does not need to be taken out during steam injection, the injection and exploitation integration can be achieved, the exploitation efficiency is improved, and the operation time is saved. However, the oil production platform has limited area and narrow space, the cluster well spacing of the oil production platform is only 2000 mm × 1800 mm, the currently widely used beam pumping unit, the walking beam-free pumping unit cannot be installed on the oil production platform due to the floor area and height, and the oil production system is not suitable for the cluster wells of the offshore oil production platform.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an underground hydraulic pumping unit which has high reliability, simple structure, small volume, simple and convenient operation and maintenance, energy conservation and high efficiency. The technical scheme who solves its technical problem and adopt is a hydraulic pumping unit in well, includes: 1. the device comprises a displacement sensor electronic bin 2, a cylinder cover 3, a hydraulic oil channel 4, a cylinder cover pressing plate 5, a pressing plate bolt 6, a vent hole 7, a crude oil outlet 8, a magnetic ring 9, a sealing ring 10, a piston 11, a hydraulic oil communicating port 12, a connecting ring 13, a sensor rod 14, an oil cylinder body 15, a guide column 16, an oil cylinder bottom cover 17, an oil rod coupling 18, an oil rod 19, an oil pipe coupling 20, an oil well pump assembly 21, a sleeve 22, an oil production tree 23, a process oil pipe 24, a cylinder cover lifting ring 25 and a hydraulic oil source assembly. And a sensor electronic bin is arranged at the center of the steel top of the cylinder cover, and the cylinder cover is fastened with the conical surface contact pressure plate bolt of the cylinder sleeve body. The oil cylinder sleeve flange is installed on the process oil pipe flange, the process oil pipe is made of steel, the upper flange is connected with a Christmas tree, the inner diameter of the oil cylinder is larger than the outer diameter of the oil cylinder, an annular space is formed to be an oil extraction channel, the lower portion of the process oil pipe is of a standard oil pipe size and is connected with an oil pipe and an oil pump through an oil pipe coupling, the Christmas tree is a component located at an opening leading to the top end of an oil well and comprises a valve, a safety system and a series of monitoring instruments, the Christmas tree is connected with a production pipeline and an oil outlet pipe from the underground, is also an important barrier isolated from the external environment, and simultaneously bears the load of an oil sleeve hydraulic cylinder. The hydraulic oil source assembly comprises a motor, a main pump, an oil supplementing pump, a reversing valve, a safety valve, a one-way valve, an energy accumulator, a manifold, a controller and the like, the hydraulic oil source is a standard mature product, and the displacement and the pressure matched with the hydraulic system are selected according to the load, the stroke frequency and the like of the hydraulic pumping unit, so that the hydraulic oil source assembly is not repeated. The displacement sensor is composed of an electronic bin, a magnetic ring and a sensor rod, the motion position of the oil cylinder piston is directly and closely related to the working position of the oil well pump piston, and the running position and stroke parameters of the oil well pump piston in the oil well pump can be accurately adjusted by the oil cylinder displacement sensor.
The well hydraulic pumping unit has the characteristics of long stroke, large load and intellectualization, is not only favorable for reducing the dynamic load of the pumping rod, prolonging the service life of the pumping rod and improving the working efficiency of the pumping rod, but also can conveniently carry out stroke and stroke frequency adjustment.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
FIG. 2 is a schematic top view of the present invention.
Fig. 3 is a schematic view of a hydraulic oil source according to the present invention.
In the figure: 1. the device comprises a displacement sensor electronic bin 2, a cylinder cover 3, a hydraulic oil channel 4, a cylinder cover pressing plate 5, a pressing plate bolt 6, a vent hole 7, a crude oil outlet 8, a magnetic ring 9, a sealing ring 10, a piston 11, a hydraulic oil communicating port 12, a connecting ring 13, a sensor rod 14, an oil cylinder body 15, a guide column 16, an oil cylinder bottom cover 17, an oil rod coupling 18, an oil rod 19, an oil pipe coupling 20, an oil well pump assembly 21, a sleeve 22, an oil production tree 23, a process oil pipe 24, a cylinder cover lifting ring 25 and a hydraulic oil source assembly.
Detailed Description
The invention is further explained by the following embodiments in combination with the attached drawings, and the invention provides a hydraulic pumping unit in a well, which comprises: the device comprises a displacement sensor electronic bin, a cylinder cover, a hydraulic oil channel, a cylinder cover pressing plate, a pressing plate bolt, a vent hole, a crude oil outlet, a magnetic ring, a sealing ring, a piston, a hydraulic oil communicating port, a connecting ring, a sensor rod, an oil cylinder body, a guide column, an oil cylinder bottom cover, an oil rod coupling, an oil rod, an oil pipe coupling, an oil well pump assembly, a sleeve, a Christmas tree, a process oil pipe, a cylinder cover lifting ring and a hydraulic oil source assembly. And a sensor electronic bin is arranged at the center of the steel top of the cylinder cover, and the cylinder cover is fastened with the conical surface contact pressure plate bolt of the cylinder sleeve body. The oil cylinder sleeve flange is installed on the process oil pipe flange, the process oil pipe is made of steel, the upper flange is connected with a Christmas tree, the inner diameter of the oil cylinder is larger than the outer diameter of the oil cylinder, an annular space is formed to be an oil extraction channel, the lower portion of the process oil pipe is of a standard oil pipe size and is connected with an oil pipe and an oil pump through an oil pipe coupling, the Christmas tree is a component located at an opening leading to the top end of an oil well and comprises a valve, a safety system and a series of monitoring instruments, the Christmas tree is connected with a production pipeline and an oil outlet pipe from the underground, is also an important barrier isolated from the external environment, and simultaneously bears the load of an oil sleeve hydraulic cylinder. The hydraulic oil source assembly comprises a motor, a main pump, an oil supplementing pump, a reversing valve, a safety valve, a one-way valve, an energy accumulator, a manifold, a controller and the like, the hydraulic oil source is a standard mature product, and the displacement and the pressure matched with the hydraulic system are selected according to the load, the stroke frequency and the like of the hydraulic pumping unit, so that the hydraulic oil source assembly is not repeated. The displacement sensor is composed of an electronic bin, a magnetic ring and a sensor rod, the motion position of the oil cylinder piston is directly and closely related to the working position of the oil well pump piston, and the running position and stroke parameters of the oil well pump piston in the oil well pump can be accurately adjusted by the oil cylinder displacement sensor.
The application method of the invention is briefly described as follows:
when the hydraulic pumping unit in the well works, the motor is controlled to drive the hydraulic pump to rotate through a control program in the control cabinet, hydraulic oil obtains kinetic energy and flows to the hydraulic cylinder through the pipeline reversing valve and pushes the piston to move upwards, the piston is connected with the oil rod to drive the oil pump to stroke and work, the piston reaches the top dead center and reverses the oil cylinder piston drives the oil pump to move downwards to the bottom dead center of the piston under the action of the gravity of the oil rod oil pump on the downstroke of the oil pump, then the oil pump supplies oil to the oil cylinder piston through the reversing valve, the oil cylinder piston moves upwards and works through the upstroke and work on the oil rod oil pump, and the reciprocating circulation is carried out to complete crude oil pumping. The top of the hydraulic cylinder piston is provided with a magnetic ring which is a permanent magnet, the center of the cylinder cover is provided with a displacement sensor rod, the sensor rod is a hollow rod, electronic elements are arranged in an electronic bin and the hollow rod and form another magnetic field, the magnetic ring moves along with the piston when the piston moves, the magnetic ring is not in contact with the sensor rod, the accurate position of an intersection point is calculated by utilizing pulse signals generated when the two different magnetic fields are intersected, and the running position and the stroke parameters of the oil well pump piston in the oil well pump can be accurately adjusted by the oil cylinder displacement sensor. The stroke and the stroke frequency can be adjusted on line during the operation of the oil pumping unit, so that the adjustment of the operation parameters of the oil pumping unit is very convenient and fast.
Claims (1)
1. An underground hydraulic pumping unit comprises a displacement sensor electronic bin, a cylinder cover, a hydraulic oil channel, a cylinder cover pressing plate, a pressing plate bolt, a vent hole, a crude oil outlet, a magnetic ring, a sealing ring, a piston, a hydraulic oil communicating port, a connecting ring, a sensor rod, an oil cylinder body, a guide post, an oil cylinder bottom cover, an oil rod coupling, an oil rod, an oil pipe coupling, an oil well pump assembly, a sleeve, a Christmas tree, a process oil pipe, a cylinder cover lifting ring and a hydraulic oil source assembly; the center of the steel top of the cylinder cover is provided with a sensor electronic bin, the cylinder cover is fastened with a conical surface contact pressure plate bolt of an oil cylinder sleeve body, and an oil cylinder sleeve flange is arranged on a process oil pipe flange; the process tubing is made of steel, an upper flange is connected with a Christmas tree, the inner diameter of the process tubing is larger than the outer diameter of the oil cylinder, an annular space is formed to be a production channel, the lower part of the process tubing is standard tubing size and is connected with the tubing and an oil pump through a tubing coupling, the Christmas tree is a component which is positioned at an opening leading to the top end of an oil well and comprises a valve for measurement and maintenance, a safety system and a series of monitoring instruments; the displacement sensor is composed of an electronic bin, a magnetic ring and a sensor rod, the motion position of the oil cylinder piston is directly and closely related to the working position of the oil well pump piston, and the running position and stroke parameters of the oil well pump piston in the oil well pump can be accurately adjusted by the oil cylinder displacement sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110640751.XA CN113756751A (en) | 2021-06-09 | 2021-06-09 | Hydraulic pumping unit in well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110640751.XA CN113756751A (en) | 2021-06-09 | 2021-06-09 | Hydraulic pumping unit in well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113756751A true CN113756751A (en) | 2021-12-07 |
Family
ID=78787431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110640751.XA Pending CN113756751A (en) | 2021-06-09 | 2021-06-09 | Hydraulic pumping unit in well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113756751A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1075191A (en) * | 1993-01-19 | 1993-08-11 | 周逢春 | Hydraulic cylinder type pumping unit in well and oil production method |
| CN2381811Y (en) * | 1999-06-21 | 2000-06-07 | 刘长年 | All status regulating hydraulic oil sucker |
| CN2736557Y (en) * | 2004-08-30 | 2005-10-26 | 雷清 | Rodless driving mechanism for reciprocating oil well pump |
| CN201173103Y (en) * | 2008-03-03 | 2008-12-31 | 高智 | Cluster well long stroke intelligent oil pumping machine |
| US20140231093A1 (en) * | 2013-02-19 | 2014-08-21 | R. Lee Hoell | Hydraulic Oil Well Pumping System, and Method for Delivering Gas From a Well |
| CN105134137A (en) * | 2015-08-28 | 2015-12-09 | 中国石油天然气股份有限公司 | Hydraulic oil pumping device |
| CN107859503A (en) * | 2017-12-08 | 2018-03-30 | 辽宁工程技术大学 | A kind of energy-saving Closed Hydraulic oil pumper |
| CN207647493U (en) * | 2017-12-08 | 2018-07-24 | 辽宁工程技术大学 | A kind of energy-saving Closed Hydraulic pumping unit |
| CN111005908A (en) * | 2019-12-18 | 2020-04-14 | 中船重工中南装备有限责任公司 | Hydraulic cylinder with stroke detection function, telescopic constant-section and seawater-resistant working condition |
| CN210359185U (en) * | 2019-07-15 | 2020-04-21 | 三和油缸(常州)有限公司 | Extrusion oil cylinder with built-in sensor |
| CN212054635U (en) * | 2020-05-09 | 2020-12-01 | 宋志亮 | Wellhead hydraulic transmission oil pumping machine for supplying power to polished rod descending |
-
2021
- 2021-06-09 CN CN202110640751.XA patent/CN113756751A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1075191A (en) * | 1993-01-19 | 1993-08-11 | 周逢春 | Hydraulic cylinder type pumping unit in well and oil production method |
| CN2381811Y (en) * | 1999-06-21 | 2000-06-07 | 刘长年 | All status regulating hydraulic oil sucker |
| CN2736557Y (en) * | 2004-08-30 | 2005-10-26 | 雷清 | Rodless driving mechanism for reciprocating oil well pump |
| CN201173103Y (en) * | 2008-03-03 | 2008-12-31 | 高智 | Cluster well long stroke intelligent oil pumping machine |
| US20140231093A1 (en) * | 2013-02-19 | 2014-08-21 | R. Lee Hoell | Hydraulic Oil Well Pumping System, and Method for Delivering Gas From a Well |
| CN105134137A (en) * | 2015-08-28 | 2015-12-09 | 中国石油天然气股份有限公司 | Hydraulic oil pumping device |
| CN107859503A (en) * | 2017-12-08 | 2018-03-30 | 辽宁工程技术大学 | A kind of energy-saving Closed Hydraulic oil pumper |
| CN207647493U (en) * | 2017-12-08 | 2018-07-24 | 辽宁工程技术大学 | A kind of energy-saving Closed Hydraulic pumping unit |
| CN210359185U (en) * | 2019-07-15 | 2020-04-21 | 三和油缸(常州)有限公司 | Extrusion oil cylinder with built-in sensor |
| CN111005908A (en) * | 2019-12-18 | 2020-04-14 | 中船重工中南装备有限责任公司 | Hydraulic cylinder with stroke detection function, telescopic constant-section and seawater-resistant working condition |
| CN212054635U (en) * | 2020-05-09 | 2020-12-01 | 宋志亮 | Wellhead hydraulic transmission oil pumping machine for supplying power to polished rod descending |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20211207 |
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| WD01 | Invention patent application deemed withdrawn after publication |