CN107916912B - Oil well natural gas recovery device - Google Patents
Oil well natural gas recovery device Download PDFInfo
- Publication number
- CN107916912B CN107916912B CN201711132676.6A CN201711132676A CN107916912B CN 107916912 B CN107916912 B CN 107916912B CN 201711132676 A CN201711132676 A CN 201711132676A CN 107916912 B CN107916912 B CN 107916912B
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- Prior art keywords
- piston
- hole
- air inlet
- flange
- rod
- 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.)
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- 238000005380 natural gas recovery Methods 0.000 title claims abstract description 11
- 239000003129 oil well Substances 0.000 title claims abstract description 10
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 30
- 239000007789 gas Substances 0.000 description 12
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 10
- 239000003345 natural gas Substances 0.000 description 6
- 238000011084 recovery Methods 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 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
- 230000008569 process Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
- F17D1/04—Pipe-line systems for gases or vapours for distribution of gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Fluid-Pressure Circuits (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
The invention provides an oil well natural gas recovery device, which comprises a bracket, a balancing rod, a large cylinder and a small cylinder, wherein the middle part of the balancing rod is rotatably connected to the bracket, a first piston is arranged in the large cylinder, a large piston rod is fixed on the first piston, an arc-shaped block is fixed at the top end of the large piston rod, a connecting rod is arranged at the upper end of the large piston rod, moving grooves A are fixedly connected below two ends of the connecting rod, two groups of small pistons are arranged in the small cylinder, a small piston rod is fixed on the small piston, a moving groove B is fixed at the top end of the small piston rod, the left end of the balancing rod is connected to the moving groove B through a guide rod, and the right end of the balancing rod is connected to the moving groove A. Is economical and environment-friendly.
Description
Technical Field
The invention relates to the field of natural gas recovery, in particular to an oil well natural gas recovery device.
Background
In the oil well development process, some low-permeability oil and gas field oil storage structures, the sleeve pipe tolerance is few, pressure is unstable, difficult recycle, in conventional exploitation, these sleeve pipe natural gases are handled to the mode that generally adopts ignition to burn, a large amount of non-renewable gas resources have been wasted, atmospheric pollution has still been caused simultaneously, although some oil fields adopt oil well natural gas recovery unit to retrieve the sleeve pipe gas and recycle, but current recovery unit can only retrieve to the natural gas of specific pressure, the rate of recovery is low, the suitability is poor, inconvenient regulation, recovery cost is high.
Disclosure of Invention
The invention provides an oil well natural gas recovery device, which solves the problems in the background technology.
the technical scheme of the invention is realized as follows:
The utility model provides an oil well natural gas recovery device, includes support, balancing pole, big cylinder and little cylinder, the balancing pole middle part is rotated and is connected on the support, be equipped with first piston in the big cylinder, be fixed with big piston rod on the first piston, big piston rod top is fixed with the arc piece, big piston rod leans on the upper end to be equipped with the connecting rod, connecting rod both ends below fixedly connected with shifting chute A, little cylinder is equipped with and is equipped with little piston in two sets of and little cylinder, be fixed with little piston rod on the little piston, little piston rod top is fixed with shifting chute B, the balancing pole left end passes through the guide bar and connects on shifting chute B, the balancing pole right-hand member is connected on shifting chute A.
still be equipped with the second piston in the big cylinder, the second piston sets up in first piston below, be equipped with first breathing hole on the first piston, be equipped with inlet port A and exhaust hole A on the second piston.
The upper end and the lower end of the large cylinder are respectively provided with a first flange and a second flange, the upper end and the lower end of the small cylinder are respectively provided with a third flange and a fourth flange, the first flange is provided with a second breathing hole, the second flange is provided with an air inlet B and an air outlet B, the third flange is provided with an air inlet C, an air outlet C and a third breathing hole, the fourth flange is provided with a fourth breathing hole, the air inlet B and the air inlet C are connected with an air inlet pipeline, the air inlet pipeline is provided with an air inlet, the air outlet B and the air outlet C are connected with an exhaust pipeline, and the other end of the exhaust pipeline is connected to a recoverer.
And the air inlet B, the air inlet C, the exhaust hole B and the exhaust hole C are all provided with one-way valves.
The regulator is connected with through two-way thrust bearing on the second flange, the regulator includes adjustment handle and integral key shaft, be equipped with the shaft hole in the big piston rod, the integral key shaft sets up in the shaft hole, be equipped with first rotary disk and second rotary disk on the integral key shaft, first rotary disk sets up in first piston below, the second rotary disk sets up in second piston below, be equipped with two regulation holes on the second rotary disk, the regulation hole can communicate with inlet port A and exhaust hole A.
By adopting the technical scheme, the invention has the beneficial effects that:
The natural gas recovery device can effectively recover natural gas in an oil field, avoids resource waste of the casing natural gas, is energy-saving and environment-friendly, can recover the casing natural gas with different air pressures by adjusting the one-way valve, the breathing hole and the regulator, and has the advantages of wide applicability, convenience in adjustment and low recovery cost.
drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the present invention installed below the oil beam;
FIG. 3 is a cross-sectional view of a large cylinder;
FIG. 4 is an enlarged view taken at A in FIG. 3;
FIG. 5 is a schematic view of the regulator;
FIG. 6 is a schematic structural view of a third flange;
Wherein: 1-an air inlet duct; 2-an air inlet; 3-a second flange; 4-a second piston; 5-a first piston; 6-large cylinder; 7-large piston rod; 8-a first flange; 9-moving tank A; 10-a connecting rod; 11-an arc-shaped block; 12-a balance bar; 13-a scaffold; 14-a guide bar; 15-moving tank B; 16-a small piston rod; 17-a third flange; 18-an exhaust duct; 19-small piston; 20-small cylinder; 21-a fourth flange; 22-a fourth breathing hole; 23-a fixing frame; 24-oil beam; 25-arc-shaped top block; 26-adjusting handle; 27-air intake holes A; 28-a first breathing hole; 29-a second breathing hole; 30-a spline shaft; 31-shaft hole; 32-a first rotating disk; 33-vent a; 34-a second rotating disc; 35-vent hole B; 36-a bidirectional thrust bearing; 37-air intake holes B; 38-a regulation hole; 39-air inlet holes C; 40-a third breathing hole; 41-exhaust hole C.
Detailed Description
the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-6:
the utility model provides an oil well natural gas recovery device, includes support 13, balancing pole 12, big cylinder 6 and little cylinder 20, balancing pole 12 middle part is rotated and is connected on support 13, be equipped with first piston 5 in the big cylinder 6, be fixed with big piston rod 7 on the first piston 5, big piston rod 7 top is fixed with arc piece 11, big piston rod 7 leans on the upper end to be equipped with connecting rod 10, connecting rod 10 both ends below fixedly connected with shifting chute A9, little cylinder 20 is equipped with and is equipped with little piston 19 in two sets of and little cylinder 20, be fixed with little piston rod 16 on the little piston 19, little piston rod 16 top is fixed with shifting chute B15, balancing pole 12 left end passes through guide bar 14 and connects on shifting chute B15, balancing pole 12 right-hand member is connected on shifting chute A9. The oil beam fixing device is fixed at the lower end of an oil beam 24, the oil beam 24 is rotatably connected with a fixing frame 23, an arc-shaped block 11 is arranged below an arc-shaped top block 25 of the oil beam 24, the motion range of the arc-shaped block 11 is overlapped with the stroke of the oil beam, and a buffer part is arranged at the contact area of the arc-shaped block 11 and the arc-shaped top block 25.
Still be equipped with second piston 4 in big cylinder 6, second piston 4 sets up in first piston 5 below, be equipped with first breathing hole 28 on first piston 5, be equipped with inlet port A27 and exhaust hole A33 on second piston 4, the upper and lower both ends of big cylinder 6 are equipped with first flange 8 and second flange 3 respectively, the upper and lower both ends of small cylinder 20 are equipped with third flange 17 and fourth flange 21 respectively, be equipped with second breathing hole 29 on first flange 8, be equipped with inlet port B37 and exhaust hole B35 on second flange 3, be equipped with inlet port C39, exhaust hole C41 and third breathing hole 40 on third flange 17, be equipped with fourth breathing hole 22 on fourth flange 21, be connected with air intake pipe 1 on inlet pipe B37 and the inlet port C39, be equipped with air inlet 2 on the air intake pipe, be connected with exhaust duct 18 on exhaust hole B35 and the exhaust hole C41, the other end of the exhaust pipeline 18 is connected to a recoverer, check valves are arranged on the air inlet hole B37, the air inlet hole C39, the air outlet hole B35 and the air outlet hole C41, check valves in the air inlet hole B37 and the air inlet hole C39 allow air to enter a cylinder and cannot be reversely discharged, check valves in the air outlet hole B35 and the air outlet hole C41 allow air to be discharged out of the cylinder and cannot be reversely entered, the second flange 3 is connected with an adjuster through a bidirectional thrust bearing 36, the adjuster comprises an adjusting handle 26 and a spline shaft 30, a shaft hole 31 is arranged in the large piston rod 7, the spline shaft 30 is arranged in the shaft hole 31, a first rotating disc 32 and a second rotating disc 34 are arranged on the spline shaft 30, the first rotating disc 32 is arranged below the first piston 5, the second rotating disc 34 is arranged below the second piston 4, two adjusting holes 38 are arranged on the second rotating disc 34, the adjusting hole 38 can be communicated with the air inlet hole A27 and the air outlet hole A33, and the communication state of the first breathing hole 28, the air inlet hole A27 and the air outlet hole A33 is controlled by the rotation of the adjuster.
the working principle is as follows: the device is divided into three working states to adapt to the working states of natural gas with different pressures, wherein A > B > C. (the apparatus is suitable for recovery of gas pressure in the range of C to A)
1. When the air pressure of the sleeve is greater than A, closing the air inlet hole C39, opening the air inlet hole B37, opening the second breathing hole 29, the third breathing hole 40 and the fourth breathing hole 22, rotating the adjusting handle 26 of the adjuster, driving the spline shaft 30 to rotate until the adjusting hole 38 of the second rotating disc 34 is not overlapped with the air inlet hole A27 and the air outlet hole A33 in the second piston 4, and the first rotating disc 32 stops rotating when not shielding the first breathing hole 28 of the first piston 5, gas enters from the air inlet 2, pushing the second piston 4 and the first piston 5 to ascend through the air inlet hole B37, and when the arc-shaped block 11 is in the motion stroke range of the oil beam 24, discharging the gas from the air outlet hole B35 to the recoverer under the action of the oil beam 24;
2. when the air pressure of the sleeve is greater than B and less than or equal to A, the air inlet hole C39 is closed, the air inlet hole B37 is opened, the second breathing hole 29, the third breathing hole 40 and the fourth breathing hole 22 are opened, the adjusting handle 26 of the adjuster is rotated to drive the spline shaft 30 to rotate until the adjusting hole 38 of the second rotating disc 34 is aligned with the centers of the air inlet hole A27 and the air outlet hole A33 in the second piston 4, and the rotation is stopped, and at the moment, the first rotating disc 32 completely shields the first breathing hole 28 of the first piston 5. Gas enters from the air inlet 2, pushes the first piston 5 to ascend through the air inlet B37 and the air inlet A27, and is exhausted from the air outlet B35 to a recoverer through the air outlet A33 under the action of the oil beam 24 when the arc-shaped block 11 is in the motion stroke range of the oil beam 24;
3. When the air pressure of the sleeve is greater than C and less than or equal to B, an air inlet hole C39 and an air inlet hole B37 are opened, a second breathing hole 29 and a third breathing hole 40 are opened, a fourth breathing hole 22 is closed, an adjusting handle 26 of the adjuster is rotated to drive the spline shaft 30 to rotate until an adjusting hole 38 of the second rotating disc 34 is aligned with the centers of an air inlet hole A27 and an air outlet hole A33 in the second piston 4, and at the moment, the first rotating disc 32 completely shields the first breathing hole 28 of the first piston 5, gas enters from the air inlet 2, on one hand, the first piston 5 is pushed to ascend through the air inlet hole B37 and the air inlet hole A27, on the other hand, the small piston 19 is pushed to move downwards through the air inlet hole C39 and the two small; when the arc-shaped block 11 is in the movement stroke range of the oil beam, gas is discharged from the gas discharge hole B35 to a recoverer through the gas discharge hole A33 on one hand and is discharged from the gas discharge hole C41 to the recoverer on the other hand under the action of the oil beam 24.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (1)
1. The utility model provides an oil well natural gas recovery unit, includes support (13), balancing pole (12), big cylinder (6) and little cylinder (20), its characterized in that: the balance rod (12) is rotatably connected to a support (13) in the middle, a first piston (5) is arranged in a large cylinder (6), a large piston rod (7) is fixed to the first piston (5), an arc-shaped block (11) is fixed to the top end of the large piston rod (7), a connecting rod (10) is arranged at the upper end of the large piston rod (7), a moving groove A (9) is fixedly connected to the lower portion of each of the two ends of the connecting rod (10), two groups of small pistons (19) are arranged in each small cylinder (20), a small piston rod (16) is fixed to each small piston (19), a moving groove B (15) is fixed to the top end of each small piston rod (16), the left end of the balance rod (12) is connected to the moving groove B (15) through a guide rod (14), and the right end of the balance rod (12) is connected to the moving groove A (9); a second piston (4) is further arranged in the large cylinder (6), the second piston (4) is arranged below the first piston (5), a first breathing hole (28) is formed in the first piston (5), and an air inlet hole A (27) and an air outlet hole A (33) are formed in the second piston (4); the air cylinder is characterized in that a first flange (8) and a second flange (3) are respectively arranged at the upper end and the lower end of the large air cylinder (6), a third flange (17) and a fourth flange (21) are respectively arranged at the upper end and the lower end of the small air cylinder (20), a second breathing hole (29) is arranged on the first flange (8), an air inlet B (37) and an air outlet B (35) are arranged on the second flange (3), an air inlet C (39), an air outlet C (41) and a third breathing hole (40) are arranged on the third flange (17), a fourth breathing hole (22) is arranged on the fourth flange (21), an air inlet pipeline (1) is connected to the air inlet B (37) and the air inlet C (39), an air inlet (2) is arranged on the air inlet pipeline, and an exhaust pipeline (18) is connected to the air outlet B (35) and the air outlet C (41; the air inlet B (37), the air inlet C (39), the air outlet B (35) and the air outlet C (41) are all provided with one-way valves; be connected with the regulator through two-way thrust bearing (36) on second flange (3), the regulator includes adjustment handle (26) and integral key shaft (30), be equipped with shaft hole (31) in big piston rod (7), integral key shaft (30) set up in shaft hole (31), be equipped with first rotary disk (32) and second rotary disk (34) on integral key shaft (30), first rotary disk (32) set up in first piston (5) below, second rotary disk (34) set up in second piston (4) below, be equipped with two regulation holes (38) on second rotary disk (34), regulation hole (38) can communicate with inlet port A (27) and exhaust hole A (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711132676.6A CN107916912B (en) | 2017-11-15 | 2017-11-15 | Oil well natural gas recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711132676.6A CN107916912B (en) | 2017-11-15 | 2017-11-15 | Oil well natural gas recovery device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107916912A CN107916912A (en) | 2018-04-17 |
| CN107916912B true CN107916912B (en) | 2019-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711132676.6A Active CN107916912B (en) | 2017-11-15 | 2017-11-15 | Oil well natural gas recovery device |
Country Status (1)
| Country | Link |
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| CN (1) | CN107916912B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111255423A (en) * | 2020-03-11 | 2020-06-09 | 长沙宁湖机械设备有限公司 | Multi-mode oil well natural gas recovery device |
| CN111503511A (en) * | 2020-05-06 | 2020-08-07 | 长沙宁湖机械设备有限公司 | Oil field natural gas recovery device |
| CN111677482A (en) * | 2020-06-17 | 2020-09-18 | 大庆市中瑞燃气有限公司 | High-corrosion high-pressure natural gas well exploitation and full recovery device and method |
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| US7562702B2 (en) * | 2005-05-19 | 2009-07-21 | Blackhawk Environmental Co. | Drain cap stuffing box |
| CN201560749U (en) * | 2009-11-10 | 2010-08-25 | 张少波 | Auxiliary energy-saving evacuating device of pumping unit |
| CN201963278U (en) * | 2011-02-14 | 2011-09-07 | 中国石油天然气股份有限公司 | Oil well casing pipe gas pressurized and recycling device |
| CN201972912U (en) * | 2011-04-06 | 2011-09-14 | 西安长庆科技工程有限责任公司 | Sealing structure of piston type casing gas booster pump |
| CN102747989A (en) * | 2012-07-29 | 2012-10-24 | 上海亿景能源科技有限公司 | Oil well casing gas collecting device |
| CN205743857U (en) * | 2016-07-11 | 2016-11-30 | 李青坤 | Hydraulic feedback formula casing gas recovering device |
| CN206091937U (en) * | 2016-10-17 | 2017-04-12 | 河北耀一节能设备制造有限责任公司 | Hang rope formula sleeve pipe gas pressure boost recovery unit |
-
2017
- 2017-11-15 CN CN201711132676.6A patent/CN107916912B/en active Active
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| CN2748632Y (en) * | 2004-10-12 | 2005-12-28 | 郑重 | Oil well decompressor |
| US7562702B2 (en) * | 2005-05-19 | 2009-07-21 | Blackhawk Environmental Co. | Drain cap stuffing box |
| CN201560749U (en) * | 2009-11-10 | 2010-08-25 | 张少波 | Auxiliary energy-saving evacuating device of pumping unit |
| CN201963278U (en) * | 2011-02-14 | 2011-09-07 | 中国石油天然气股份有限公司 | Oil well casing pipe gas pressurized and recycling device |
| CN201972912U (en) * | 2011-04-06 | 2011-09-14 | 西安长庆科技工程有限责任公司 | Sealing structure of piston type casing gas booster pump |
| CN102747989A (en) * | 2012-07-29 | 2012-10-24 | 上海亿景能源科技有限公司 | Oil well casing gas collecting device |
| CN205743857U (en) * | 2016-07-11 | 2016-11-30 | 李青坤 | Hydraulic feedback formula casing gas recovering device |
| CN206091937U (en) * | 2016-10-17 | 2017-04-12 | 河北耀一节能设备制造有限责任公司 | Hang rope formula sleeve pipe gas pressure boost recovery unit |
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| Title |
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| CN107916912A (en) | 2018-04-17 |
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