CN202108477U - Plunger water-draining gas-producing wellhead buffer - Google Patents
Plunger water-draining gas-producing wellhead buffer Download PDFInfo
- Publication number
- CN202108477U CN202108477U CN2011201208988U CN201120120898U CN202108477U CN 202108477 U CN202108477 U CN 202108477U CN 2011201208988 U CN2011201208988 U CN 2011201208988U CN 201120120898 U CN201120120898 U CN 201120120898U CN 202108477 U CN202108477 U CN 202108477U
- Authority
- CN
- China
- Prior art keywords
- piston
- compression spring
- cushion dashpot
- plunger
- gas production
- 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
- 230000006835 compression Effects 0.000 claims abstract description 19
- 238000007906 compression Methods 0.000 claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 238000005086 pumping Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 230000000694 effects Effects 0.000 abstract description 5
- 230000003139 buffering effect Effects 0.000 abstract description 2
- 238000013016 damping Methods 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 241000191291 Abies alba Species 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 241000521257 Hydrops Species 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Landscapes
- Pipe Accessories (AREA)
Abstract
A plunger drainage gas production wellhead buffer is applied to a gas production wellhead of an oil and gas field. Threads are arranged at two ends of the connecting pipe, and the upper end of the connecting pipe is in threaded connection with the buffer cylinder; the buffer cylinder is cylindrical, an annular step which protrudes inwards is arranged on the inner wall of the buffer cylinder, a cylindrical piston is arranged on the inner step of the buffer cylinder, the piston is provided with an axial through hole, a compression spring is arranged at the upper part of the piston, and one end of the compression spring is pressed on the piston; and the other end of the buffer cylinder is in threaded connection with an end cover, the end cover compresses the other end of the compression spring, and one end of the end cover is closed. The effect is as follows: the piston is provided with a balance pressure hole and a sealing ring to play a role in enhancing buffering and damping.
Description
Technical field
The utility model relates to oil gas field production gas technology field, and particularly a kind of corollary apparatus of water pumping gas production well head is a kind of well head snubber of plunger water pumping gas production.
Background technology
At present, along with continually developing of gas field, a large amount of gas wells have got into low pressure, low yield stage, and well yield is low, fluid-carrying capability is poor, and shaft bottom and pit shaft produce hydrops gradually, have a strong impact on gas well output.Plunger lift is the effective and economic and practical water pumping gas production method at present domestic and international gas field.The snubber of in plunger system equipment, well head being installed plays the up impulse force of buffer plunger, reduces the effect of plunger to the impact of well head christmas tree.Have only at present the compression spring that plunger is directly cushioned in the plunger lift well head snubber, buffering, damping performance are poor, through the repeatedly impact of plunger, usually cause compression spring and end cap impaired serious, cause whole plunger system to move.
The utility model content
The purpose of the utility model is: a kind of plunger water pumping gas production well head snubber is provided, adopts sealing ring and balance pressure port, playing increases cushioning effect to plunger.
The technical scheme that the utility model adopts is: plunger water pumping gas production well head snubber, mainly to form by end cap, compression spring, piston, cushion dashpot and tube connector, and there is screw thread at the tube connector two ends, and cushion dashpot is threaded in the upper end of tube connector; It is characterized in that: described cushion dashpot is a cylindrical shape; Inwardly protruded ring-shaped step is arranged on the inwall of cushion dashpot, a cylinder bodily form piston is arranged on the interior step of cushion dashpot, piston has axially extending bore; On the top of piston a compression spring is arranged, an end of compression spring is pressed on the piston; At the other end of the cushion dashpot end cap that has been threaded, end cap compresses the other end of compression spring, and an end of described end cap is closed.
In order to increase sealing and frictional resistance between piston and the cushion dashpot, on the outer wall of piston, sealing ring is arranged.
The operating principle of summary plunger water pumping gas production well head snubber.Consult Fig. 1.Under the state of closing well, the tube connector 6 of plunger water pumping gas production well head snubber is installed on the well head christmas tree.When plunger is in the shaft bottom,, make cushion dashpot 5 cavity pressures and pit shaft internal pressure balance because there is the equilibrium pressure hole in piston 3; When arriving piston 3 when the plunger high speed uplink and through tube connector 6; At first thereby plunger promotes the up and compression compression spring 2 of piston 3 and has cushioned the up impulse force of plunger; Secondly exercise cushion dashpot 5 interior gas pressures on the piston 3 and reach balance, cushioned the up impulse force of plunger equally through equilibrium pressure hole and upstream pressure; Once more; Thereby further cushioned the up impulse force of plunger because the existence of sealing ring 4 has increased the friction of piston 3 and cushion dashpot 5, equilibrium pressure hole and sealing ring 4 actings in conjunction of so far compressing spring 2 and piston 3 have reduced the impact force of plunger to well head snubber and well head christmas tree.
The beneficial effect of the utility model: the utility model plunger water pumping gas production well head snubber, play the effect that strengthens bumper and absorbing shock through increasing equilibrium pressure hole and sealing ring on the piston to plunger.
Description of drawings
Fig. 1 is the utility model plunger water pumping gas production well head buffer structure generalized section.
Among the figure, the 1-end cap, 2-compresses spring, 3-piston, 4-sealing ring, 5-cushion dashpot, 6-tube connector.
The specific embodiment
Embodiment 1: with a plunger water pumping gas production well head snubber is example, and the utility model is done further explain.
Consult Fig. 1.The utility model plunger water pumping gas production well head snubber mainly is made up of end cap 1, compression spring 2, piston 3, cushion dashpot 5 and tube connector 6, and there is screw thread at tube connector 6 two ends, and cushion dashpot 5 is threaded in the upper end of tube connector 6.Described cushion dashpot 5 is a cylindrical shape, and an inwardly protruded ring-shaped step is arranged on the inwall bottom of cushion dashpot 5, and the effect of step stops piston 3.A cylinder bodily form piston 3 is arranged on the interior step of cushion dashpot 5, and it is the axially extending bore of 5mm that piston 3 has four diameters, and a spiral compression spring 2 is arranged on the top of piston 3, and an end of spiral compression spring 2 is pressed on the piston 3; At the other end of cushion dashpot 5 end cap 1 that has been threaded, end cap 1 compresses the other end of compression spring 2, and an end of described end cap is closed.Twice rubber seal 4 is arranged on the outer wall of piston 3.
Claims (2)
1. a plunger water pumping gas production well head snubber mainly is made up of end cap (1), compression spring (2), piston (3), cushion dashpot (5) and tube connector (6), and there is screw thread at tube connector (6) two ends, and cushion dashpot (5) is threaded in the upper end of tube connector (6); It is characterized in that: described cushion dashpot (5) is cylindrical shape; Inwardly protruded ring-shaped step is arranged on the inwall of cushion dashpot (5); A cylinder bodily form piston (3) is arranged on the interior step of cushion dashpot (5); Piston (3) has axially extending bore, and a compression spring (2) is arranged on the top of piston (3), and an end of compression spring (2) is pressed on the piston (3); At the other end of cushion dashpot (5) end cap (1) that has been threaded, end cap (1) compresses the other end of compression spring (2), and an end of described end cap is closed.
2. plunger water pumping gas production well head snubber according to claim 1 is characterized in that: sealing ring (4) is arranged on the outer wall of piston (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201208988U CN202108477U (en) | 2011-04-22 | 2011-04-22 | Plunger water-draining gas-producing wellhead buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201208988U CN202108477U (en) | 2011-04-22 | 2011-04-22 | Plunger water-draining gas-producing wellhead buffer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202108477U true CN202108477U (en) | 2012-01-11 |
Family
ID=45433913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201208988U Expired - Lifetime CN202108477U (en) | 2011-04-22 | 2011-04-22 | Plunger water-draining gas-producing wellhead buffer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202108477U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670337A (en) * | 2012-09-18 | 2014-03-26 | 中国石油天然气股份有限公司 | Split plunger device for continuous production without closing well |
| CN107178322A (en) * | 2017-07-15 | 2017-09-19 | 延长油田股份有限公司靖边采油厂 | A kind of hydraulic oil pipe buffer used for dropped from high place |
-
2011
- 2011-04-22 CN CN2011201208988U patent/CN202108477U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670337A (en) * | 2012-09-18 | 2014-03-26 | 中国石油天然气股份有限公司 | Split plunger device for continuous production without closing well |
| CN103670337B (en) * | 2012-09-18 | 2016-04-06 | 中国石油天然气股份有限公司 | Split plunger device for continuous production without closing well |
| CN107178322A (en) * | 2017-07-15 | 2017-09-19 | 延长油田股份有限公司靖边采油厂 | A kind of hydraulic oil pipe buffer used for dropped from high place |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104976272A (en) | Heavy load hydraulic damper | |
| CN202108477U (en) | Plunger water-draining gas-producing wellhead buffer | |
| CN102031938B (en) | Shock absorber for drilling tool in oil-gas drilling | |
| CN201818478U (en) | Vibration damping and righting device of single screw oil submerged pump | |
| CN203939915U (en) | A kind of hydraulic damper | |
| CN111022421B (en) | Double-acting buffering hydraulic cylinder with external load absorption sleeve structure | |
| CN206376786U (en) | A kind of hydraulic drilling jar | |
| CN202627986U (en) | Movement conversion damping device | |
| CN202690042U (en) | Pressure balance bunker device of hydraulic pushing instrument | |
| CN202789460U (en) | Gas-proof oil well pump | |
| CN202974552U (en) | Compression gauge buffer | |
| CN211874716U (en) | Double-air-cushion damping whole barrel pump | |
| CN204784411U (en) | Big load hydraulic damper | |
| CN202300303U (en) | Full-balanced compression-type step-by-step release packer | |
| CN110925189B (en) | Double-air cushion damping whole cylinder pump and application method thereof | |
| CN201517615U (en) | Buffering type hydraulic mud valve | |
| CN203223209U (en) | Downhole buffer device used for plunger gas lifting drainage gas recovery method | |
| CN211874715U (en) | Leather cup type damping pumping-assisting whole barrel pump | |
| CN201074589Y (en) | Multipurpose standing valve for oil well pump | |
| CN204552662U (en) | A kind of double cylinder double acting Full hydraulic jar knocker during drilling | |
| CN202545417U (en) | Floating buffer plunger structure | |
| CN214660761U (en) | Novel gas well flowing back is piston for gas production | |
| CN203362104U (en) | Sand-up prevention packer | |
| CN201507427U (en) | Constant feedback force oil-well pump | |
| CN201588596U (en) | Compressive packer rubber roller used for oil and gas fields with improved structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120111 |
|
| CX01 | Expiry of patent term |