CN110295870B - Recovery device beneficial to low-yield well - Google Patents
Recovery device beneficial to low-yield well Download PDFInfo
- Publication number
- CN110295870B CN110295870B CN201910458260.6A CN201910458260A CN110295870B CN 110295870 B CN110295870 B CN 110295870B CN 201910458260 A CN201910458260 A CN 201910458260A CN 110295870 B CN110295870 B CN 110295870B
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- oil
- pump
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- rod
- api
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- 238000011084 recovery Methods 0.000 title claims abstract description 23
- 230000009286 beneficial effect Effects 0.000 title abstract description 6
- 238000003780 insertion Methods 0.000 claims abstract description 17
- 230000037431 insertion Effects 0.000 claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
- 239000010959 steel Substances 0.000 claims abstract description 13
- 210000001503 joint Anatomy 0.000 claims abstract description 8
- 238000000605 extraction Methods 0.000 claims abstract description 5
- 239000003921 oil Substances 0.000 claims description 67
- 239000010720 hydraulic oil Substances 0.000 claims description 5
- 235000009508 confectionery Nutrition 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000005299 abrasion Methods 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005086 pumping Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012360 testing method Methods 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)
- Earth Drilling (AREA)
Abstract
The invention discloses a recovery device beneficial to a low-yield well, which comprises: the hydraulic power system is used for driving the steel wire rope to drive the weighting rod or the cable connector connected with the polished rod so as to drive the API downhole insertion pump to reciprocate up and down; the oil extraction device comprises a polished rod, a high-pressure union, an oil pipe short joint and a pump tee joint; the lower end of the high-pressure union is in butt joint with the oil pipe short joint, and the lower end of the oil pipe short joint is in butt joint with the upper end of the pump tee joint; the lower end of the polished rod is connected with the weighting rod, and the upper end of the polished rod is connected with the steel wire rope; an API downhole insertion pump includes a sleeve connected to the tubing and a valve stem connected to a weighted rod or cable connector and threaded into the sleeve. The invention has the advantages of long stroke, low maintenance, low energy consumption, automatic control and reduction of oil pipe abrasion and drill rod falling.
Description
Technical Field
The invention relates to the technical field of petroleum and natural gas drilling and production equipment. More particularly, the present invention relates to a recovery device for low producing wells.
Background
A driven oil production system mainly comprises a head knocking machine (a beam pumping unit) and an electric submersible pump, wherein the conventional head knocking machine has the problems of short stroke, high maintenance cost, high energy consumption, oil pipe abrasion and easy removal of a drill rod, and the electric submersible pump is a downhole pump with a motor, is high in purchase cost, high in repair cost, free of water content control and the like and is not suitable for a low-yield well.
Disclosure of Invention
The invention aims to provide a recovery device beneficial to a low-yield well, which is an artificial lifting solution easy to use and optimize and has the advantages of long stroke, low maintenance, low energy consumption, automatic control and reduction of oil pipe abrasion and drill rod falling.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a recovery apparatus for a low-producing well, including:
the hydraulic power system is used for driving the steel wire rope to drive the weighting rod (or the cable connector) connected with the polished rod so as to drive the API downhole insertion pump to reciprocate up and down;
the oil extraction device comprises a polished rod, a high-pressure union, an oil pipe short joint and a pump tee joint; the lower end of the high-pressure union is in butt joint with the oil pipe short joint, and the lower end of the oil pipe short joint is in butt joint with the upper end of the pump tee joint; the lower end of the polished rod is connected with the weighting rod, and the upper end of the polished rod is connected with the steel wire rope;
API downhole insertion pumps include a sleeve connected to the tubing and a valve stem connected to a weighted rod (or cable connector) and threaded into the sleeve.
Preferably, the oil collecting pipe device comprises an oil collecting pipe assembly, a one-way valve, a flow meter controller and an electromagnetic reversing valve;
one end of the oil collecting pipe assembly is communicated with a side branch of the pump tee joint, the other end of the oil collecting pipe assembly is connected to the oil pipe short joint in a return mode, a one-way valve, a flowmeter controller and an electromagnetic reversing valve are sequentially arranged on the oil collecting pipe assembly from the oil pipe short joint to the direction of the pump tee joint, and the other oil way outlet of the electromagnetic reversing valve is connected with the oil storage tank.
Preferably, still include oil recovery control system, it includes PLC controller, flow sensor and sensor controller, flow sensor sets up in the lower part of API inserting pump in the pit, PLC controller and sensor controller, check valve, flowmeter controller, solenoid directional valve, the automatically controlled connection of the driving motor of API inserting pump in the pit, the sensor passes through the cable and is connected with the sensor controller.
Preferably, the hydraulic power system comprises a motor, a hydraulic oil tank, a hydraulic pump and a hydraulic cylinder; and the PLC is electrically connected with a motor of the hydraulic power system.
Preferably, the API downhole insertion pump has a pump anchor attached to a lower end thereof.
Preferably, the device also comprises a wellhead device which is connected with the lower part of the pump tee joint.
Preferably, the apparatus further comprises a sheave arranged to divert the traction cable to extend downwardly in a vertical direction.
The invention at least comprises the following beneficial effects:
1. the invention provides a low-yield well recovery device, which overcomes the defects of short stroke, high maintenance cost, high energy consumption, high oil pipe abrasion, easy falling of a drill rod and the like of a head knocking machine, overcomes the defects of high purchase cost, high repair cost and no water content control, and has the advantages of long stroke and short stroke frequency, reduction of oil pipe abrasion or drill rod falling, water content control, reasonable production cost and the like.
2. A flow meter controller is provided in the present patent to determine when the system should be shifted from the upstroke to the downstroke and vice versa. Because of the realization of various stroke lengths, the hydraulic pumping unit system becomes very universal, and only one system is needed to replace the requirements of a plurality of pumping units.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic diagram of a configuration for facilitating a low producing well recovery apparatus;
FIG. 2 is a schematic diagram of the oil recovery unit configuration of the low producing well recovery unit;
fig. 3 is a schematic structural diagram of an oil extraction device of a conventional heading machine.
The device comprises a PLC controller, a control panel of the PLC controller, a hydraulic pump, a hydraulic oil tank, a steel wire rope, a connecting pipe, a roller, a pulley, a sensor controller, a high-pressure union, a collecting oil pipe device, a pump tee joint, a well opening device, an oil pipe, a 13 oil pipe, an API (application program interface) inserting pump, a pump anchor, a sleeve, a check valve, a flowmeter controller, a flow meter controller, an electromagnetic reversing valve, a polish rod, a packing box and a 22 oil pipe short circuit, wherein the PLC controller comprises 1 PLC controller.
Detailed Description
The present invention is further described in detail below with reference to examples so that those skilled in the art can practice the invention with reference to the description.
In the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1-2, in the low-yield well, a casing 16 has been fixed on the well wall for packing and isolating oil, gas and water layers, and the invention provides a recovery device beneficial to the low-yield well, which comprises:
the hydraulic power system is used for driving the steel wire rope 4 to drive a weighting rod (or a cable connector) connected with the polished rod 20 to reciprocate up and down, the hydraulic power system is installed on the ground, and the steel wire rope 4 between the hydraulic power system and the pulley 7 is protected by a connecting pipe 5;
the oil extraction device comprises a polish rod 20, a high-pressure union 9, an oil pipe short joint 22 and a pump tee 11; the upper end of the high-pressure union 9 is fixed through a clamping seat, the lower end of the high-pressure union 9 is in butt joint with an oil pipe short joint 22, and the lower end of the oil pipe short joint 22 is in butt joint with the upper end of the pump tee 11; the lower end of the polish rod 20 is connected with the weighting rod, and the upper end of the polish rod 20 is connected with the steel wire rope 4;
an API downhole insertion pump comprises a sleeve connected to tubing 13 and a valve stem connected to a weighted rod (or cable connector) and threaded into the sleeve.
Further, in the present embodiment, the oil collecting pipe device 10 is further included, and includes an oil collecting pipe assembly, a one-way valve 17, a flow meter controller 18 and an electromagnetic directional valve 19;
one end of the oil collecting pipe assembly is communicated with a side branch of the pump tee joint 11, the other end of the oil collecting pipe assembly is connected to the oil pipe short joint 22 in a return mode, a one-way valve 17, a flowmeter controller 18 and an electromagnetic reversing valve 19 are sequentially arranged on the oil collecting pipe assembly from the oil pipe short joint 22 to the direction of the pump tee joint 11, and the other oil way outlet of the electromagnetic reversing valve 19 is connected with the oil storage tank.
Further, in this embodiment, still include oil recovery control system, it includes PLC controller, flow sensor and sensor control ware 8, flow sensor sets up in the lower part that API inserted the pump in the pit, PLC controller and flow sensor, check valve 17, flowmeter control ware 18, electromagnetic directional valve 19, the automatically controlled connection of the driving motor that API inserted the pump in the pit, the sensor passes through the cable and is connected with sensor control ware 8, and PLC controller's control panel 1 sets up on hydraulic power system, and the control system of this application is the high-efficient operation of controller that PLC automation becomes the basis, can optimize in real time according to the well condition.
Further, in the present embodiment, the hydraulic power system includes a motor, a hydraulic oil tank 3, a hydraulic pump 2 and a hydraulic cylinder; the PLC is electrically connected with a motor of the hydraulic power system, the PLC controls the start and stop of the motor of the hydraulic power system, the motor of the hydraulic power system drives the hydraulic pump 2 to pump oil in the hydraulic oil tank 3 into the hydraulic cylinder, and therefore the steel wire rope 4 is driven to drive the weighting rod (or the cable connector) connected with the polished rod 20 to reciprocate up and down.
Further, in this embodiment, the lower end of the API downhole insertion pump is connected with a pump anchor 15.
Further, in this embodiment, a wellhead 12 is further included, which is connected to a lower portion of the pump tee 11.
Further, in this embodiment, the device further comprises a pulley 7 configured to pull the steel cable 4 to rotate and extend downward in the vertical direction, and a roller 6 is disposed below the pulley 7 to assist the rotation of the pulley 7.
The working process of the low-yield well recovery device comprises the following steps: when a downhole fluid sensor is activated, a cylindrical polished rod 20 attached to the wireline 4 carries the weight rod (or cable connector) and drives the downhole insertion pump to submerge at a slow rate below the programmed wellbore depth. Then, the API inserts the pump operation in the pit and carries out the oil pumping, and at this moment, PLC controller control check valve 17 opens, and oil gets into the oil collecting pipe assembly through oil pipe short circuit 22, when the flow reaches the target value, touches PLC controller control solenoid directional valve 19 and opens, and oil gets into the oil storage tank, realizes oil recovery. If the flow rate does not reach the target value, the PLC controller can adjust the downhole depth of the API downhole insertion pump. Meanwhile, the electromagnetic directional valve 19 is controlled to reverse, so that part of the oil in the oil collecting pipe assembly flows back to the bottom of the well through the pump tee joint 11 until the fluid sensor at the bottom of the well is activated again, oil recovery is restarted, and circulation is continued. The device can be used for active abandoned wells, inactive wells or low-yield wells. The PLC controller is used to calculate the condition of the test well, keeping the fluid level at the proper depth all the time, allowing the API insertion pump 14 to run 24 hours a day, maximizing production. The control of the liquid level of the annulus above the API insertion pump 14 is an important factor for improving the oil production efficiency, and the flow sensor and the built-in algorithm are used for controlling the steel wire rope to drive the weighting rod (or cable connector) connected with the polished rod 20 so as to drive the API insertion pump to act, thereby controlling the speed to match the oil injection speed of the casing 16.
In the technical scheme, the low-yield well recovery device only needs to be installed by a crane and can be installed in places without a service drilling machine or a drilling machine flushing device. The device can pump the well within 45 minutes after installation of the polish rod 20 with a crane.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable to various fields of endeavor for which the invention may be embodied with additional modifications as would be readily apparent to those skilled in the art, and the invention is therefore not limited to the details given herein and to the embodiments shown and described without departing from the generic concept as defined by the claims and their equivalents.
Claims (6)
1. A recovery device for a low-producing well, comprising:
the hydraulic power system is used for driving the steel wire rope to drive the weighting rod or the cable connector connected with the polished rod so as to drive the API downhole insertion pump to reciprocate up and down;
the oil extraction device comprises a polished rod, a high-pressure union, an oil pipe short joint and a pump tee joint; the lower end of the high-pressure union is in butt joint with the oil pipe short joint, and the lower end of the oil pipe short joint is in butt joint with the upper end of the pump tee joint; the lower end of the polished rod is connected with a weighting rod or a cable connector, and the upper end of the polished rod is connected with a steel wire rope;
an API downhole insertion pump comprising a sleeve and a valve stem, the sleeve being connected to the tubing, the valve stem being connected to a weighted rod or cable connector and penetrating the sleeve;
the oil collecting pipe device comprises an oil collecting pipe assembly, a one-way valve, a flow meter controller and an electromagnetic reversing valve;
one end of the oil collecting pipe assembly is communicated with a side branch of the pump tee joint, the other end of the oil collecting pipe assembly is connected to the oil pipe short joint in a return mode, a one-way valve, a flowmeter controller and an electromagnetic reversing valve are sequentially arranged on the oil collecting pipe assembly from the oil pipe short joint to the direction of the pump tee joint, and the other oil way outlet of the electromagnetic reversing valve is connected with the oil storage tank.
2. The recovery device for the low-yield well according to claim 1, further comprising an oil recovery control system including a PLC controller, a flow sensor and a sensor controller, wherein the flow sensor is disposed at a lower portion of the API downhole insertion pump, and the PLC controller is electrically connected to the sensor controller, the check valve, the flow meter controller, the electromagnetic directional valve and a driving motor of the API downhole insertion pump.
3. The recovery apparatus for favor of low producing well according to claim 2, wherein the hydraulic power system comprises an electric motor, a hydraulic oil tank, a hydraulic pump and a hydraulic cylinder; and the PLC is electrically connected with a motor of the hydraulic power system.
4. The apparatus for facilitating recovery of a low producing well of claim 1, wherein a pump anchor is attached to a lower end of the API downhole insertion pump.
5. The recovery apparatus for a sweet well according to claim 1, further comprising a wellhead connected to a lower portion of the pump tee.
6. The apparatus of claim 1, further comprising a sheave configured to divert the wireline to extend downwardly in a vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910458260.6A CN110295870B (en) | 2019-05-29 | 2019-05-29 | Recovery device beneficial to low-yield well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910458260.6A CN110295870B (en) | 2019-05-29 | 2019-05-29 | Recovery device beneficial to low-yield well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110295870A CN110295870A (en) | 2019-10-01 |
| CN110295870B true CN110295870B (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910458260.6A Active CN110295870B (en) | 2019-05-29 | 2019-05-29 | Recovery device beneficial to low-yield well |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5522463A (en) * | 1994-08-25 | 1996-06-04 | Barbee; Phil | Downhole oil well pump apparatus |
| CN101305187A (en) * | 2005-10-13 | 2008-11-12 | 井泵技术有限公司 | System and method for optimizing down-hole fluid yield |
| CN104074494A (en) * | 2014-07-16 | 2014-10-01 | 檀长江 | Combined-type oil well casing gas recovery device |
| CN205297503U (en) * | 2015-12-09 | 2016-06-08 | 中国石油天然气股份有限公司 | Intelligent testing, adjusting and monitoring process device for separate injection well |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018057417A1 (en) * | 2016-09-26 | 2018-03-29 | Bristol, Inc., D/B/A Remote Automation Solutions | Automated wash system and method for a progressing cavity pump system |
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2019
- 2019-05-29 CN CN201910458260.6A patent/CN110295870B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5522463A (en) * | 1994-08-25 | 1996-06-04 | Barbee; Phil | Downhole oil well pump apparatus |
| CN101305187A (en) * | 2005-10-13 | 2008-11-12 | 井泵技术有限公司 | System and method for optimizing down-hole fluid yield |
| CN104074494A (en) * | 2014-07-16 | 2014-10-01 | 檀长江 | Combined-type oil well casing gas recovery device |
| CN205297503U (en) * | 2015-12-09 | 2016-06-08 | 中国石油天然气股份有限公司 | Intelligent testing, adjusting and monitoring process device for separate injection well |
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| CN110295870A (en) | 2019-10-01 |
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