CN202108477U - Plunger water pumping gas production well mouth buffer - Google Patents
Plunger water pumping gas production well mouth 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
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- piston
- gas production
- compression spring
- production well
- water pumping
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Abstract
A plunger water pumping gas production well mouth buffer is applicable to gas production well mouths of oil and gas fields. Threads are arranged at the two ends of a connection pipe, and the upper end of the connection pipe is connected with a buffer cylinder by threads; the buffer cylinder is cylindrical, an annular footstep protruding inwards is arranged on the inner wall of the buffer cylinder, and a cylindrical piston is arranged on the inner footstep of the buffer cylinder; the piston is provided with an axial through hole, and a compression spring is arranged at the upper part of the piston; one end of the compression spring is pressed on the piston; and the other end of the buffer cylinder is connected with an end cover by threads, the end cover tightly presses the other end of the compression spring, and one end of the end cover is closed. The water pumping gas production well mouth buffer has the effect of realizing the function of enhancing shock buffering on a plunger by adding a pressure balance hole and a sealing ring on the piston.
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 pumping gas production well mouth buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201208988U CN202108477U (en) | 2011-04-22 | 2011-04-22 | Plunger water pumping gas production well mouth 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 pumping gas production well mouth 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 non-shut-in continuous production |
| 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 non-shut-in continuous production |
| CN103670337B (en) * | 2012-09-18 | 2016-04-06 | 中国石油天然气股份有限公司 | The split type plunger assembly of responding curve of well quantity-produced |
| 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 |
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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 |