CN104500020A - Moving plunger for gas well production with water withdrawal - Google Patents
Moving plunger for gas well production with water withdrawal Download PDFInfo
- Publication number
- CN104500020A CN104500020A CN201410610233.3A CN201410610233A CN104500020A CN 104500020 A CN104500020 A CN 104500020A CN 201410610233 A CN201410610233 A CN 201410610233A CN 104500020 A CN104500020 A CN 104500020A
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- China
- Prior art keywords
- outer sleeve
- gas
- production
- well
- fish head
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- 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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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The present invention provides a moving plunger for gas well production with water withdrawal which is simple in structure and good in accumulated fluid withdrawal effect. The moving plunger comprises a fish head, a sealing rod in the fish head, a retaining sleeve which is arranged between the fish head and the sealing rod and used for limiting the movement range of the sealing rod, wherein the lower part of the fish head is screwedly connected with an outer sleeve, a drop bar is movably arranged in the outer sleeve; and the outer part of the outer sleeve is sleeved with an elastic sealing claw. The tool vertically floats due to the pressure in well, so that the shaft accumulated fluid is lifted and discharged through a well opening, and finally natural gas is developed or water flooding of other gas wells in the same air reservoir is delayed and avoided, so as to improve the production state of the whole air reservoir and increase the final production rate of the air reservoir. The moving plunger has features of simple structure, good accumulated fluid withdrawal effect, long service life, and achieves the purpose of gas production and yield increase.
Description
Technical field
The present invention relates to a kind of water pumping gas production equipment, the travelling plunger of especially a kind of water pumping gas production.
Background technology
The natural gas well, at initial stage of development, because gas-bearing formation energy is large, relies on the energy of gas well self just natural gas and product fluid can be given rise to ground, thus there will not be hydrops phenomenon.But enter into the middle and later periods along with constantly exploiting year by year, stratum energy is constantly decayed, and formation water production increases year by year, and the fluid-carrying capability of output gas declines, to such an extent as to gas can not carry out whole liquid, causes pit shaft progressively hydrops.Along with the rising in hydrops face, bottom pressure can be made to increase, and gas production reduces further, if can not discharge hydrops timely and effectively, the natural gas well can be caused to carry out blowing production for a large amount of hydrops or well floods phenomenon.Current gas field water pumping gas production mode adopts optimizing pipe string, gaslift, electric submersible pump, machine take out and steep row's gas producing technology mostly.This several water drainage-gas recovery technology is all technology maturation, is also the more process of onsite application.But the mining conditions of any one method to gas well all there are certain requirements, choose reasonable must be carried out for the geology characteristic of gas reservoir, gas well liquid loading dynamic characteristic and ambient conditions, in addition, fluid properties, to shake out and the impact etc. of the situation of fouling, economic input and output is also the key factor needing to consider, must Comprehensive Correlation, analyze various influence factor, finally could determine to adopt which kind of water drainage-gas recovery technology.Above-mentioned technological measure is more by the restriction of hole condition and mining conditions, and operating type is complicated, and cost is also high.
Summary of the invention
The invention provides a kind of structure simple, the travelling plunger of water pumping gas production that row's hydrops is effective.
The travelling plunger of the water pumping gas production realizing the object of the invention, comprises and drags for head, be positioned at the seal bar of dragging for head, described in drag between head and seal bar and be provided with interstage sleeve, described interstage sleeve is for limiting the moving range of seal bar; Described dragging in the outer sleeve described in outer sleeve that to be threaded below head is movably set with trip rod; The flexible jaw of outer cover of described outer sleeve.
The threaded one end of described outer sleeve is connected with fixed cover, and described fixed cover is for being fixed on outer sleeve by elastic packing pawl.
Water pumping gas production of the present invention is as follows with the beneficial effect of travelling plunger:
The travelling plunger of water pumping gas production of the present invention, by pressure itself in well, instrument is fluctuated, reach lifting pit shaft hydrops and hydrops is discharged well head, natural gas is from pit shaft extraction or delay and avoid other gas well water loggings of same gas reservoir the most at last, improve whole gas reservoir production status to reach, improve for the purpose of gas reservoir ultimate recovery.Structure of the present invention is simple, and row's hydrops is effective, long service life, reaches the object of gas production volume increase.Pit shaft hydrops can move up along oil pipe, and is discharged outside well by hydrops in well by the pressure of natural gas, avoids shaft bottom to occur a large amount of hydrops thus keeps the long-term blowing of the natural gas well to produce.
Accompanying drawing explanation
Fig. 1 is the structural representation of water pumping gas production of the present invention with travelling plunger.
Detailed description of the invention
As shown in Figure 1, the travelling plunger of water pumping gas production of the present invention, comprises and drags for 1, is positioned at a seal bar 3 of dragging for 1, described in drag for and between 1 and seal bar 3, be provided with interstage sleeve 2, described interstage sleeve 2 is for limiting the moving range of seal bar 3; Described drag for 1 below to be threaded outer sleeve 4, be movably set with trip rod 7 in described overcoat 4; The flexible jaw 6 of outer cover of described outer sleeve 4.
The threaded one end of described outer sleeve 4 is connected with fixed cover 5, and described fixed cover 5 is for being fixed on outer sleeve 4 by elastic packing pawl 6.
The water pumping gas production of the present invention operating principle of travelling plunger:
Water pumping gas production of the present invention is elastic component with the elastic packing pawl of travelling plunger, can free-extension, contraction, inner impact bar provides flow channels, by seal bar with drag for head to control the opening and closing of flow channels.When on the up shock of plunger during ram, when flow channels is opened, natural gas can pass through flow channels smoothly, and now instrument is descending along oil pipe tube wall under gravity.When coming downwards to lower locating device, flow channels is closed, elastic packing pawl is contracted in oil pipe and forms an opposing sealing surfaces, the hydrops on guarantee instrument sealing position top can not be missed downwards, namely plunger seal position holds up upper wellbore hydrops, use natural gas pressure itself upwardly plunger, finally plunger and above hydrops are discharged upwards jack-up and, to well head, discharge hydrops.Under elastic packing pawl free state, its external diameter is greater than pipe aperture, and when it drops into oil pipe, elastic packing pawl will shrink, and the instrument of guarantee can pass through oil pipe and tubing coupling smoothly.
Water pumping gas production of the present invention is as follows by the advantage of travelling plunger:
1) for there being the low-pressure gas well of blowing ability to use, drag plunger discharge opeing by pressure itself in well, plunger, along the up picking-up hydrops of oil pipe, discharges well head, improves gas well recovery ratio;
2) seal face materials anti-wear performance is good, has automatic compensation function, good airproof performance, and discharge opeing effect of increasing production is good.
3) in gas-liquid rising way, hydrops produces water membrane at tube inner wall, can reduce oil pipe frictional resistance, decreases wall wax deposition scale formation.
4) pit shaft hydrops moves upward along tube inner wall, and sealing surface is greater than box cupling gap lengths, crosses box cupling and can not miss liquid, improve efficiency in picking-up process;
5) simple operation, operating cost is low, and sealing surface adopts wear-resistant material, increases abrasion resistance, delays plunger application life;
6) plunger automatic-sealed time up, plunger free-falling time descending, plunger can be salvaged from well head or change, and operation and maintenance is all very simple.
Embodiment recited above is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; do not departing under the present invention designs spiritual prerequisite; the various distortion that the common engineers and technicians in this area make technical solution of the present invention and improvement, all should fall in protection domain that claims of the present invention determine.
Claims (2)
1. the travelling plunger of water pumping gas production, is characterized in that: comprise and drag for head, is positioned at the seal bar of dragging for head, described in drag between head and seal bar and be provided with interstage sleeve, described interstage sleeve is for limiting the moving range of seal bar; Described dragging in the outer sleeve described in outer sleeve that to be threaded below head is movably set with trip rod; The flexible jaw of outer cover of described outer sleeve.
2. the travelling plunger of water pumping gas production according to claim 1, it is characterized in that: the threaded one end of described outer sleeve is connected with fixed cover, described fixed cover is for being fixed on outer sleeve by elastic packing pawl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410610233.3A CN104500020A (en) | 2014-11-03 | 2014-11-03 | Moving plunger for gas well production with water withdrawal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410610233.3A CN104500020A (en) | 2014-11-03 | 2014-11-03 | Moving plunger for gas well production with water withdrawal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104500020A true CN104500020A (en) | 2015-04-08 |
Family
ID=52941459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410610233.3A Pending CN104500020A (en) | 2014-11-03 | 2014-11-03 | Moving plunger for gas well production with water withdrawal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104500020A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522898A (en) * | 2016-11-02 | 2017-03-22 | 中国石油化工股份有限公司 | Gas well automatic water draining plunger |
| WO2019047871A1 (en) * | 2017-09-06 | 2019-03-14 | 刘书豪 | Fluid separation device, well structure, and oil or gas production method |
| WO2019047873A1 (en) * | 2017-09-06 | 2019-03-14 | 刘书豪 | Fluid separating device, hoistway structure, and petroleum or natural gas production method |
| CN109505566A (en) * | 2018-12-25 | 2019-03-22 | 成都理工大学 | A kind of temperature control swimming type eddy flow gas well drainage plunger |
| CN110630214A (en) * | 2019-09-27 | 2019-12-31 | 四川海盾石油新技术开发有限公司 | Plunger for natural gas production well |
| CN111335843A (en) * | 2020-02-09 | 2020-06-26 | 成都佳广知科技有限公司 | Free-moving cock device in natural gas well |
| CN113719260A (en) * | 2021-09-30 | 2021-11-30 | 西南石油大学 | Leakage-proof sand-blocking-proof drainage gas production plunger for large-inclination sand-containing gas well |
| CN114382448A (en) * | 2022-01-24 | 2022-04-22 | 宝鸡文理学院 | Oil and gas downhole turbine power-assisted gas lift plunger drainage and gas production device |
| CN117662076A (en) * | 2024-02-02 | 2024-03-08 | 陕西汇丰悦石油科技开发有限公司 | Liquid-discharging gas-collecting device and liquid-discharging gas-collecting method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3181470A (en) * | 1963-09-03 | 1965-05-04 | Walter L Clingman | Gas lift plunger |
| US4502843A (en) * | 1980-03-31 | 1985-03-05 | Noodle Corporation | Valveless free plunger and system for well pumping |
| SU1756628A1 (en) * | 1990-03-15 | 1992-08-23 | Оренбургское Творческое Объединение "Энергия" При Производственном Объединении "Стрела" | Gas-lift plunger |
| US20040226713A1 (en) * | 2003-05-13 | 2004-11-18 | Townsend Murray Ray | Plunger for gas wells |
| US20050194149A1 (en) * | 2004-03-03 | 2005-09-08 | Giacomino Jeffrey L. | Thermal actuated plunger |
| CA2504503A1 (en) * | 2004-04-20 | 2005-10-20 | Production Control Services, Inc. | Variable orifice bypass plunger |
| CN101858330A (en) * | 2010-05-18 | 2010-10-13 | 中国石油天然气股份有限公司 | Drainage gas production plunger in gas well |
| CN202064903U (en) * | 2011-04-22 | 2011-12-07 | 中国石油天然气股份有限公司 | Downhole cushioning and supporting device for gas recovery by water discharging of plunger |
| CN202338481U (en) * | 2011-11-25 | 2012-07-18 | 中国石油天然气股份有限公司 | Automatic liquid-discharging plunger of gas well |
-
2014
- 2014-11-03 CN CN201410610233.3A patent/CN104500020A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3181470A (en) * | 1963-09-03 | 1965-05-04 | Walter L Clingman | Gas lift plunger |
| US4502843A (en) * | 1980-03-31 | 1985-03-05 | Noodle Corporation | Valveless free plunger and system for well pumping |
| SU1756628A1 (en) * | 1990-03-15 | 1992-08-23 | Оренбургское Творческое Объединение "Энергия" При Производственном Объединении "Стрела" | Gas-lift plunger |
| US20040226713A1 (en) * | 2003-05-13 | 2004-11-18 | Townsend Murray Ray | Plunger for gas wells |
| US20050194149A1 (en) * | 2004-03-03 | 2005-09-08 | Giacomino Jeffrey L. | Thermal actuated plunger |
| CA2504503A1 (en) * | 2004-04-20 | 2005-10-20 | Production Control Services, Inc. | Variable orifice bypass plunger |
| CN101858330A (en) * | 2010-05-18 | 2010-10-13 | 中国石油天然气股份有限公司 | Drainage gas production plunger in gas well |
| CN202064903U (en) * | 2011-04-22 | 2011-12-07 | 中国石油天然气股份有限公司 | Downhole cushioning and supporting device for gas recovery by water discharging of plunger |
| CN202338481U (en) * | 2011-11-25 | 2012-07-18 | 中国石油天然气股份有限公司 | Automatic liquid-discharging plunger of gas well |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522898A (en) * | 2016-11-02 | 2017-03-22 | 中国石油化工股份有限公司 | Gas well automatic water draining plunger |
| CN106522898B (en) * | 2016-11-02 | 2019-05-17 | 中国石油化工股份有限公司 | Gas well Auto-drainage plunger |
| WO2019047871A1 (en) * | 2017-09-06 | 2019-03-14 | 刘书豪 | Fluid separation device, well structure, and oil or gas production method |
| WO2019047873A1 (en) * | 2017-09-06 | 2019-03-14 | 刘书豪 | Fluid separating device, hoistway structure, and petroleum or natural gas production method |
| CN109505566A (en) * | 2018-12-25 | 2019-03-22 | 成都理工大学 | A kind of temperature control swimming type eddy flow gas well drainage plunger |
| CN109505566B (en) * | 2018-12-25 | 2020-11-27 | 成都理工大学 | Temperature control floating type rotational flow gas well drainage plunger |
| CN110630214A (en) * | 2019-09-27 | 2019-12-31 | 四川海盾石油新技术开发有限公司 | Plunger for natural gas production well |
| CN111335843A (en) * | 2020-02-09 | 2020-06-26 | 成都佳广知科技有限公司 | Free-moving cock device in natural gas well |
| CN113719260A (en) * | 2021-09-30 | 2021-11-30 | 西南石油大学 | Leakage-proof sand-blocking-proof drainage gas production plunger for large-inclination sand-containing gas well |
| CN114382448A (en) * | 2022-01-24 | 2022-04-22 | 宝鸡文理学院 | Oil and gas downhole turbine power-assisted gas lift plunger drainage and gas production device |
| CN117662076A (en) * | 2024-02-02 | 2024-03-08 | 陕西汇丰悦石油科技开发有限公司 | Liquid-discharging gas-collecting device and liquid-discharging gas-collecting method |
| CN117662076B (en) * | 2024-02-02 | 2024-04-09 | 陕西汇丰悦石油科技开发有限公司 | Liquid-discharging gas-collecting device and liquid-discharging gas-collecting method |
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| C06 | 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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150408 |