CN202338481U - Automatic liquid-discharging plunger for gas well - Google Patents
Automatic liquid-discharging plunger for gas well Download PDFInfo
- Publication number
- CN202338481U CN202338481U CN2011204783036U CN201120478303U CN202338481U CN 202338481 U CN202338481 U CN 202338481U CN 2011204783036 U CN2011204783036 U CN 2011204783036U CN 201120478303 U CN201120478303 U CN 201120478303U CN 202338481 U CN202338481 U CN 202338481U
- Authority
- CN
- China
- Prior art keywords
- plunger
- spider
- piston
- gas well
- fluid passage
- 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.)
- Expired - Lifetime
Links
- 238000007599 discharging Methods 0.000 title 1
- 239000012530 fluid Substances 0.000 claims abstract description 14
- 238000012856 packing Methods 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 241000239290 Araneae Species 0.000 claims description 25
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000000737 periodic effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 29
- 241000521257 Hydrops Species 0.000 description 3
- 206010030113 Oedema Diseases 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Images
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The utility model discloses an automatic flowing back plunger of gas well designs for solving the low problem of traditional plunger production efficiency, sets up promptly on the plunger and connects the salvage neck of cylinder jacket, set up fluid passage and seal assembly's piston, connect in the branch cover and the connecting rod and the spring and the packing element etc. of branch cover down. The plunger can be salvaged, can realize complete sealing of the whole shaft by means of the rubber sleeve, does not need to increase a wellhead control device, can continuously produce, utilizes the self energy of a gas well to reciprocate in an oil pipe, realizes periodic liquid lifting, and is high in production efficiency.
Description
Technical field
The utility model relates to a kind of gas well automatic drain plunger, belongs to oil gas field production gas technology field.
Background technique
Exploitation gradually along with the gas field; The part gas well has got into stage middle and later periods of low pressure, low yield, and the shaft bottom energy shortage is carried into ground with the water with the gas-bearing formation output, and hydrops appears in pit shaft; The pit shaft hydrops will increase the back pressure to the stratum; And limit its throughput, finally can gas-bearing formation be killed so that closing well causes enormous economic loss fully.Water pumping gas production is the effective ways that solve " gas well hydrops ", also is to excavate to produce aqueous vapor well productive potentialities, improves one of important measures of recovery rate.Plunger lift is a kind of water pumping gas production measure, also is the jat special shape, and plunger separates with lifting gas with by lifting liquid as a kind of seal interface of solid, reduces the channelling of gas and the falling of liquid, improves the efficient of lifting gas.
The tradition plunger lift needs certain closed-in time, so that plunger falls back to the shaft bottom, thereby makes the pressure in shaft bottom be able to recover.But than the long closed-in time, not only can influence the output of gas well, but also the liquid that can order about in the well pours into the stratum, and then reduce the manufacturing efficiency of gas well.
Summary of the invention
The purpose of the utility model is to provide a kind of gas well automatic drain plunger, and it can address the above problem well.
The concrete technology contents of the utility model is following:
The fishing neck outside thread that is provided with the locking inside groove connects cylinder liner, is provided with piston in the cylinder liner, and piston face is provided with radially convex shoulder, upper spring locking and lower spring locking, and piston is provided with axial fluid passage, and passage top is provided with sealing seat, and the bottom is provided with hollow steel ball.Cylinder liner lower end internal thread is connected with the middle spider of locking inside groove and axial fluid passage, and middle spider lower end outside thread connects packing element, and packing element lower end internal thread is connected with the following spider of axial fluid passage.In be connected spring between spider and the following spider, small end is threadedly connected to the centre endoporus, middle spider central through bore is passed in the lower end and spring thread is connected in down the spider central bore.
The advantage of the utility model is that this plunger can salvage, and can rely on packing element to realize that whole pit shaft seals fully, need not increase control head, can produce continuously, utilizes the to-and-fro motion in oil pipe of gas well self-energy, property performance period act liquid, and manufacturing efficiency is high.
Description of drawings
Fig. 1 is gas well automatic drain plunger structural representation when up.
Fig. 2 is gas well automatic drain plunger structural representation when descending.
Fig. 3 is piston 3 structural representations.
Embodiment
Embodiment:
Embodiment referring to figs. 1 through 3 pairs of the utility model further specifies:
Fishing neck 1 lower external thread that is provided with the locking inside groove connects cylinder liner 2; Be provided with piston 3 in the cylinder liner 2, piston 3 surfaces are provided with radially convex shoulder, upper spring locking 9 and lower spring locking 13, and piston 3 is provided with axial fluid passage 12; Passage top is provided with sealing seat 10, and the bottom is provided with hollow steel ball 11.Cylinder liner 2 lower end internal threads are connected with the middle spider 4 of locking inside groove and axial fluid passage, and middle spider 4 lower end outside threads connect packing element 5, and packing element 5 lower end internal threads are connected with the following spider 6 of axial fluid passage.In be connected spring 7 between spider 4 and the following spider 6, connecting rod 8 upper ends are threadedly connected to piston 3 central bore, middle spider 4 central through bores are passed in the lower end and spring 7 is threadedly connected to down spider 6 central bore.
The working procedure of the utility model is following:
1. plunger is up
When plunger arrival down-hole was located the device top, gas and liquid passed through the fluid passage entering packing element 5 of spider 6 down, passed through the fluid passage of middle spider 4 and piston 3 again; Get into cylinder liner 2; Along with the increase of gas, under the effect of gas and liquid, hollow steel ball 11 is set on sealing seat 10 by jack-up; Block the fluid passage, make and form a closed chamber between piston 3 and the cylinder liner 2.Along with increasing of tolerance, piston 3 is pushed up, until being locked on the fishing neck 1 by spring pin fixed 9.In this process, piston 3 drives connecting rod 8 and following spider 6 is up, makes spring 7 be in compressive state, and packing element 5 is in swelling state, and then in pit shaft, a packing face occurs, and the gas of plunger below can't be passed through.Gas is assembled below plunger, and it is up that energy is increased to the liquid that to a certain degree just promotes plunger and its top, and when plunger arrived well head, the liquids and gases on its top were by extraction.
2, plunger is descending
The liquids and gases of plunger upper part are during by extraction, and the gas of plunger bottom is released, and at this moment plunger is in the relatively low pressure district; Plunger is descending automatically under the effect of gravity, and hollow steel ball 11 falls, and open the fluid passage; The closed chamber pressurized gas discharge, and spring 7 discharges elasticity, make fixed 9 releases of spring pin; Piston 3 is descending, and packing element 5 shrinks playback, in piston 3 is locked in by spring pin fixed 13 on the spider 4.When plunger arrival down-hole is located the device top, the circulation of beginning next cycle.
Claims (1)
1. gas well automatic drain plunger is characterized in that:
Fishing neck (1) outside thread that is provided with the locking inside groove connects cylinder liner (2); Be provided with piston (3) in the cylinder liner (2); Piston (3) surface is provided with radially convex shoulder, upper spring locking (9) and lower spring locking (13); Piston (3) is provided with axial fluid passage (12), and passage top is provided with sealing seat (10), and the bottom is provided with hollow steel ball (11); Cylinder liner (2) lower end internal thread is connected with the middle spider (4) of locking inside groove and axial fluid passage, and middle spider (4) lower end outside thread connects packing element (5), and packing element (5) lower end internal thread is connected with the following spider (6) of axial fluid passage; In be connected spring (7) between spider (4) and the following spider (6), be threadedly connected to piston (3) central bore on the connecting rod (8), the lower end passes middle spider (4) central through bore and spring 7 is threadedly connected to down spider (6) central bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204783036U CN202338481U (en) | 2011-11-25 | 2011-11-25 | Automatic liquid-discharging plunger for gas well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204783036U CN202338481U (en) | 2011-11-25 | 2011-11-25 | Automatic liquid-discharging plunger for gas well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202338481U true CN202338481U (en) | 2012-07-18 |
Family
ID=46487173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204783036U Expired - Lifetime CN202338481U (en) | 2011-11-25 | 2011-11-25 | Automatic liquid-discharging plunger for gas well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202338481U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133340A (en) * | 2011-11-25 | 2013-06-05 | 中国石油天然气股份有限公司 | Automatic liquid-discharging plunger for gas well |
| CN104500020A (en) * | 2014-11-03 | 2015-04-08 | 北京金科龙石油技术开发有限公司 | Moving plunger for gas well production with water withdrawal |
| CN107091069A (en) * | 2017-04-21 | 2017-08-25 | 托普威尔石油技术股份公司 | A kind of gaslift piston |
| 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 |
-
2011
- 2011-11-25 CN CN2011204783036U patent/CN202338481U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133340A (en) * | 2011-11-25 | 2013-06-05 | 中国石油天然气股份有限公司 | Automatic liquid-discharging plunger for gas well |
| CN103133340B (en) * | 2011-11-25 | 2015-09-23 | 中国石油天然气股份有限公司 | Automatic liquid-discharging plunger for gas well |
| CN104500020A (en) * | 2014-11-03 | 2015-04-08 | 北京金科龙石油技术开发有限公司 | Moving plunger for gas well production with water withdrawal |
| CN107091069A (en) * | 2017-04-21 | 2017-08-25 | 托普威尔石油技术股份公司 | A kind of gaslift piston |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120718 Effective date of abandoning: 20150923 |
|
| RGAV | Abandon patent right to avoid regrant |