CN204371649U - A kind of liner type water pumping gas production plunger - Google Patents
A kind of liner type water pumping gas production plunger Download PDFInfo
- Publication number
- CN204371649U CN204371649U CN201420741730.2U CN201420741730U CN204371649U CN 204371649 U CN204371649 U CN 204371649U CN 201420741730 U CN201420741730 U CN 201420741730U CN 204371649 U CN204371649 U CN 204371649U
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- plunger
- cushion block
- liner type
- water pumping
- type water
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 238000005086 pumping Methods 0.000 title claims abstract description 21
- 239000007788 liquid Substances 0.000 abstract description 30
- 238000000034 method Methods 0.000 abstract description 17
- 238000007599 discharging Methods 0.000 abstract description 9
- 239000007789 gas Substances 0.000 description 62
- 241000521257 Hydrops Species 0.000 description 6
- 206010030113 Oedema Diseases 0.000 description 6
- 238000011084 recovery Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 240000004859 Gamochaeta purpurea Species 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
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- Reciprocating Pumps (AREA)
Abstract
The utility model provides a kind of liner type water pumping gas production plunger, and comprise body and be positioned at body underpart and the body guide head by screwed connection, the outer surface of described body is embedded with cushion block, is connected between cushion block and body by guide finger with spring.The liner type water pumping gas production plunger that the utility model provides, both the slippage of gas and the leakage of liquid in lifting process can have been prevented, again can when running into oil pipe reducing, plunger necking down is made and smooth in oil pipe reducing place by cushion block Compress Spring, avoid meeting card in plunger up-downgoing process, ensure carrying out smoothly of liquid discharging gas producing operation.
Description
Technical field
The utility model relates to water pumping gas production field, gas field, particularly a kind of liner type water pumping gas production plunger.
Background technique
In the exploitation of low pressure gas field and gas condensate field, pit shaft hydrops is one of subject matter of restriction gas well stable yields and high yield.Liquid in gas well mainly from the condensation effect of gaseous hydrocarbon, the stratum water of reservoir or interbedded water in stratum.Normally with the formal distribution of drop in the gas phase, gas is continuous phase to liquid in gas well and liquid is discontinuous phase flowing, and liquid is carried to ground with the form of drop by gas.When gas phase can not provide enough ability to make the liquid continuous flow in pit shaft go out well head, will form hydrops in gas well shaft bottom, the formation of hydrops will increase the back pressure of gas-bearing formation.In high-pressure well, liquid exists with the form of slug flow, the more stratum energy of its meeting loss, restriction gas capacity of well; In low pressure well, hydrops can kill gas well completely, causes gas well water logging closing well, makes the gas well underproduction.In order to ensure the normal production of gas well, discharge shaft bottom hydrops timely, generally water-producing gas well is taked to the method for liquid discharging gas producing.As can be seen from the evaluation result of the aspects such as measure Economy, applicability, Security and effect of increasing production, plunger lift drainage gas recovery is applicable to narrow-minded (0.1 × 104 m
3/ more than d), liquid-gas ratio is higher (is less than 5 m
3/ 10
4m
3) gas well, and automaticity is high, pit shaft slippage loss little.So plunger lift drainage gas recovery is the most economical rational technique that Soviet Union's Sulige gas field low yield inefficient well improves recovery rate.
Plunger lift is a kind of simple liquid discharging gas producing method efficiently, be jat special shape, plunger, as a kind of seal interface of solid, separates by lifting gas with by the liquid of lifting, reduce gas channelling and liquid falling, improve the efficiency of lifting gas.The energy of plunger lift is mainly derived from stratum, but when formation gas energy shortage, also in well, injects certain high pressure air.These gases push the liquid on plunger and top thereof to well head from shaft bottom, get rid of shaft bottom hydrops, increase producing pressure differential, extend the production time of gas well.To conventional continuous gas lift or the not high well of intermittent gaslift efficiency, adopt plunger lift to enhance productivity, avoid the effective consumption of gas.Plunger lift also can be used for easy wax deposition, the Oil/gas Well of fouling, along oil pipe up and down plunger back and forth can hinder and damage the process of wax deposition fouling.So just saved cleaning wax, the operation of dirt has saved production time and operating cost.
The height of plunger lift system effectiveness depends on the structure of plunger completely, and the existing major advantage of plunger lift liquid discharging gas producing that utilizes is 1) improve the lifting efficiency of intermittent gaslift: plunger lift is compared with other water drainage-gas recovery technology has higher recovery rate.The solid interface that plunger provides greatly reduces liquid and falls after rise, the corresponding lifting efficiency that improve gas; 2) equipment investment is few, long service life and maintenance cost is low good in economic efficiency: its installation cost and operation and maintenance cost low, without the need to power consumption, save human time etc.; 3) stratum energy can be made full use of, without the need to other energy ezpenditure; 4) automaticity of the equipment on ground is high, is easy to management; 5) the wax deposition problem of paraffin-troubled well can effectively be alleviated.
Although plunger lift system has above-mentioned a little many-sided, also there is certain shortcoming in it, 1) and other lift modes are complicated relatively for ground installation, and the motion in plunger is complicated and unreliable.In order to improve the falling speed of plunger in well, in plunger of being everlasting, be provided with bypass mechanism.Valve opening in bypass mechanism and closedown mainly rely on plunger strikes fastener and well mouth buffer.Due to when plunger moves in well one, inevitably collide from tubing wall or impacted with the liquid that different speed falls into down-hole.Plunger, under the effect of these impact forces, has one the bypass mechanism in plunger may be made to produce motion when not arriving needs motion.These unexpected valve openings or closedown are exactly the root that people occur in actual production that plunger is stuck in well, significantly not reduce etc. problem with liquid, high-speed impact upper bumper, plunger life-span;
2) operational administrative has certain difficulty, in order to the management Plunger Lift well of energy automation, always at a whole set of control apparatus of surface construction, makes producing well carry out work in an orderly manner.These equipment investments are large, mechanism is complicated, to operating environment requirements harshness, bring many inconvenience to management.In addition, also need opportunity of falling according to the PRODUCTION STATUS determination plunger of producing well and drive a well and time of closing well.The calculating of process parameter and ground control system are all very complicated;
3) production process easily causes larger pressure surge in ground transportation network;
4) batch production.
Plunger lift technique used is both at home and abroad all step production technology at present, namely goes downwards to this period of time in shaft bottom at plunger from well head, must close a well in.The factor of these mainly following two aspects causes:
1. the maximum cross-section area of plunger and the interior cross-section area of flow string very close, when plunger is moved in tubing string, the gas-flow resistance be subject to is too large;
2. in order to prevent the slippage of gas and the leakage of liquid in lifting process, the internal diameter of existing plunger outer diameter and tubing string is very close, and the surface friction drag that plunger is subject in movement process is very large;
5) falling speed of plunger is slow;
When plunger falls in oil pipe, owing to being subject to the frictional force of tube inner wall, the resistance of gas and lifting the effect of power, it is very slow that the speed of whereabouts becomes.Although theoretical value is also more satisfactory, in actual use, the falling speed of plunger is often less than 2 meter per seconds, and some hole conditions are less than 1 meter per second.Like this for the discharge well of a bite 3000 meters of well depths, each manufacture cycle, the time that only plunger falls just needs 40 ~ 70 minutes (falling in a liquid the required time containing plunger).If every day calculated by 10 manufacture cycles, then have the time of half to close a well in, manufacturing efficiency is very low.
In above-mentioned shortcoming, the topmost shortcoming of restriction liquid discharging gas producing operation is, in order to prevent the slippage of gas and the leakage of liquid in lifting process, the external diameter of existing plunger and the internal diameter of oil pipe are closely, but because oil pipe exists reducing, and the diameter of plunger cannot change, plunger is caused to meet card, further prolongation duty cycle, even cannot complete liquid discharging gas producing operation.
Model utility content
The purpose of this utility model solves existing plunger when running into oil pipe reducing, and plunger cannot undergauge, the easily problem of chance card.
For this reason, the utility model provides a kind of liner type water pumping gas production plunger, and comprise body and be positioned at body underpart and the body guide head by screwed connection, the outer surface of described body is embedded with cushion block, is connected between cushion block and body by guide finger with spring.
Described guide finger is made up of the first guide finger and the second guide finger, and spring is arranged between the first guide finger and the second guide finger.
Described cushion block comprises cushion block group and is positioned at the lower cushion block group of cushion block group lower end, is connected between upper cushion block group and lower cushion block group by middle supporting ring.
Radially safety pin is provided with between described guide head and lower cushion block group.
Described spring is arranged along the radial direction of body.
The cross section of described middle supporting ring is T-shaped.
Described upper cushion block group is evenly arranged by the circumference of four points of cushion blocks along body, and described lower cushion block group is evenly arranged by the circumference of four points of cushion blocks along body.
The beneficial effects of the utility model: the liner type water pumping gas production plunger that the utility model provides, both the slippage of gas and the leakage of liquid in lifting process can have been prevented, again can when running into oil pipe reducing, plunger necking down is made and smooth in oil pipe reducing place by cushion block Compress Spring, avoid meeting card in plunger up-downgoing process, ensure carrying out smoothly of liquid discharging gas producing operation.
Below with reference to accompanying drawing, the utility model is described in further details.
Accompanying drawing explanation
Fig. 1 be liner type water pumping gas production plunger partly cut open schematic diagram.
Fig. 2 is the schematic diagram of liner type water pumping gas production plunger.
Fig. 3 is the schematic diagram of cushion block.
Fig. 4 be middle supporting ring partly cut open schematic diagram.
Description of reference numerals: 1, body; 2, cushion block; 21, upper cushion block group; 22, lower cushion block group; 3, the first guide finger; 301, the first guide finger chamber; 4, spring; 401, spring chamber; 5, middle supporting ring; 6, safety pin; 7, guide head; 8, the second guide finger; 801, the second guide finger chamber; 9, cushion block is divided.
Embodiment
Below with reference to accompanying drawing, this liner type water pumping gas production plunger is described in further detail.
embodiment 1:
As shown in figures 1 and 3, liner type water pumping gas production plunger, comprise body 1 and be positioned at body 1 underpart and body 1 guide head 7 by screwed connection, the outer surface of described body 1 is embedded with cushion block 2, is connected between cushion block 2 and body 1 by guide finger with spring 4.
When liner type plunger is up or descending in the wellbore, cushion block 2 is due to the support of spring 4, the gap of 0mm ~ 1.25mm is kept with tube inner wall, when running into oil pipe reducing, cushion block 2 Compress Spring 4, make the reduced of liner type plunger, smoothly by oil pipe reducing place, avoid meeting card in plunger up-downgoing process, ensure carrying out smoothly of liquid discharging gas producing operation, have the advantage preventing gas slip and liquid from falling after rise, liner type plunger is after passing through oil pipe reducing place simultaneously, spring 4 resets, and liner type plunger recovers original diameter.
embodiment 2:
On the basis of embodiment 1, concrete, described guide finger is made up of the first guide finger 3 and the second guide finger 8, and spring 4 is arranged between the first guide finger 3 and the second guide finger 8, be interference fit between first guide finger 3, second guide finger 8 and cushion block 2, and be Spielpassung between body 1.
embodiment 3:
On the basis of embodiment 2, it should be noted that, as shown in Figure 2, described cushion block 2 comprises cushion block group 21 and is positioned at the lower cushion block group 22 of cushion block group 21 lower end, as shown in Figure 4, in order to fixing cushion block 2, connected by middle supporting ring 5 between upper cushion block group 21 and lower cushion block group 22.
embodiment 4:
On the basis of embodiment 3, safety pin 6 is radially provided with between described guide head 7 and lower cushion block group 22, as shown in Figure 4, the cross section of described middle supporting ring 5 is T-shaped, described upper cushion block group 21 is evenly arranged by the circumference of four points of cushion blocks 9 along body 1, described lower cushion block group 22 is evenly arranged by the circumference of four points of cushion blocks 9 along body 1, and described spring 4 is arranged along the radial direction of body 1, and namely the central axis of spring 4 is in the center line of body 1.
Guide head 7 and body 1 are by screwed connection, and occur loosening to prevent screw thread causing plunger to disconnect, be provided with safety pin 6 between body 1 and guide head 7, safety pin 6 inserts in body 1 through guide head 7.
embodiment 5:
Comprehensive above-described embodiment, concrete, liner type water pumping gas production plunger comprises body 1 and is positioned at body 1 underpart and body 1 guide head 7 by screwed connection, the outer surface of body 1 is embedded with cushion block 2, the first guide finger chamber 301 of placement first guide finger 3 is provided with between the body 1 of this liner type gas production plunger and cushion block 2, place the spring chamber 401 of spring 4, place the second guide finger chamber 801 of the second guide finger 8, and the first guide finger chamber 301, spring chamber 401, second guide finger chamber 801 is all opened on the outer surface of body 1, by the first guide finger 3, spring 4, second guide finger 8 is installed on corresponding first guide finger chamber 301 between cushion block group 21 and body 1, spring chamber 401, in second guide finger chamber 801, as shown in Figure 4, in order to fixing cushion block 2, between upper cushion block group 21 and lower cushion block group 22, be provided with middle supporting ring 5, middle supporting ring 5 is installed between upper cushion block group 21 and lower cushion block group 22, guide head 7 and body 1 are by screwed connection, and occur loosening to prevent screw thread causing plunger to disconnect, be provided with safety pin 6 between body 1 and guide head 7, safety pin 6 is through guide head 7 and body 1.
Be interference fit between first guide finger 3, second guide finger 8 and cushion block 2, and be Spielpassung between body 1; When cushion block 2 is in softened state, the first guide finger 3 and the distance between the first guide finger chamber 301, second guide finger 8 and the bottom in the second guide finger chamber 801 are greater than the distance between body 1 and cushion block 2, and spring 4 is in compressive state all the time.
When liner type plunger is up or descending in the wellbore, cushion block 2 is due to the support of spring 4, the gap of 0mm ~ 1.25mm is kept with tube inner wall, when running into oil pipe reducing, cushion block 2 Compress Spring 4, make the reduced of liner type plunger, smoothly by oil pipe reducing place, have the advantage preventing gas slip and liquid from falling after rise, liner type plunger is after passing through oil pipe reducing place, spring 4 resets, and liner type plunger recovers original diameter.
When liner type plunger is up or descending in the wellbore, cushion block 2 is due to the support of spring 4, the gap of 0mm ~ 1.25mm is kept with tube inner wall, when running into oil pipe reducing, cushion block 2 Compress Spring 4, make the reduced of liner type plunger, smoothly by oil pipe reducing place, have the advantage preventing gas slip and liquid from falling after rise, liner type plunger is after passing through oil pipe reducing place, spring 4 resets, and liner type plunger recovers original diameter.
The liner type water pumping gas production plunger that the utility model provides, both the slippage of gas and the leakage of liquid in lifting process can have been prevented, again can when running into oil pipe reducing, plunger necking down is made and smooth in oil pipe reducing place by cushion block Compress Spring, avoid meeting card in plunger up-downgoing process, ensure carrying out smoothly of liquid discharging gas producing operation.
More than exemplifying is only illustrate of the present utility model, does not form the restriction to protection domain of the present utility model, everyly all belongs within protection domain of the present utility model with the same or analogous design of the utility model.
Claims (7)
1. a liner type water pumping gas production plunger, comprise body (1) and be positioned at body (1) underpart and body (1) guide head (7) by screwed connection, it is characterized in that: the outer surface of described body (1) is embedded with cushion block (2), is connected between cushion block (2) and body (1) by guide finger with spring (4).
2. a kind of liner type water pumping gas production plunger as claimed in claim 1, is characterized in that: described guide finger is made up of the first guide finger (3) and the second guide finger (8), and spring (4) is arranged between the first guide finger (3) and the second guide finger (8).
3. a kind of liner type water pumping gas production plunger as claimed in claim 2, it is characterized in that: described cushion block (2) comprises cushion block group (21) and is positioned at the lower cushion block group (22) of cushion block group (21) lower end, connected by middle supporting ring (5) between upper cushion block group (21) and lower cushion block group (22).
4. a kind of liner type water pumping gas production plunger as claimed in claim 3, is characterized in that: be radially provided with safety pin (6) between described guide head (7) and body (1).
5. a kind of liner type water pumping gas production plunger as claimed in claim 4, is characterized in that: described spring (4) is arranged along the radial direction of body (1).
6. a kind of liner type water pumping gas production plunger as claimed in claim 5, is characterized in that: the cross section of described middle supporting ring (5) is T-shaped.
7. a kind of liner type water pumping gas production plunger as claimed in claim 6, it is characterized in that: described upper cushion block group (21) is evenly arranged by the circumference of four points of cushion blocks (9) along body (1), and described lower cushion block group (22) is evenly arranged by the circumference of four points of cushion blocks (9) along body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420741730.2U CN204371649U (en) | 2014-12-02 | 2014-12-02 | A kind of liner type water pumping gas production plunger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420741730.2U CN204371649U (en) | 2014-12-02 | 2014-12-02 | A kind of liner type water pumping gas production plunger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204371649U true CN204371649U (en) | 2015-06-03 |
Family
ID=53327874
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420741730.2U Expired - Fee Related CN204371649U (en) | 2014-12-02 | 2014-12-02 | A kind of liner type water pumping gas production plunger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204371649U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389782A (en) * | 2014-12-02 | 2015-03-04 | 中国石油天然气股份有限公司 | Cushioned drainage and gas production plunger |
| CN108756826A (en) * | 2018-07-23 | 2018-11-06 | 西安石油大学 | A kind of reducing self-operated type water pumping gas production plunger |
| CN109209305A (en) * | 2018-11-13 | 2019-01-15 | 中国石油化工股份有限公司江汉油田分公司石油工程技术研究院 | A kind of gas well Intelligent Plunger mining device and construction method |
-
2014
- 2014-12-02 CN CN201420741730.2U patent/CN204371649U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389782A (en) * | 2014-12-02 | 2015-03-04 | 中国石油天然气股份有限公司 | Cushioned drainage and gas production plunger |
| CN108756826A (en) * | 2018-07-23 | 2018-11-06 | 西安石油大学 | A kind of reducing self-operated type water pumping gas production plunger |
| CN109209305A (en) * | 2018-11-13 | 2019-01-15 | 中国石油化工股份有限公司江汉油田分公司石油工程技术研究院 | A kind of gas well Intelligent Plunger mining device and construction method |
| CN109209305B (en) * | 2018-11-13 | 2023-10-13 | 中国石油化工股份有限公司 | Intelligent plunger drainage and production device for gas well and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 |