CN202338518U - Casing-head gas recovery device for electrohydraulic push rods - Google Patents
Casing-head gas recovery device for electrohydraulic push rods Download PDFInfo
- Publication number
- CN202338518U CN202338518U CN2011204069544U CN201120406954U CN202338518U CN 202338518 U CN202338518 U CN 202338518U CN 2011204069544 U CN2011204069544 U CN 2011204069544U CN 201120406954 U CN201120406954 U CN 201120406954U CN 202338518 U CN202338518 U CN 202338518U
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- China
- Prior art keywords
- casing
- oil
- head gas
- electrohydraulic push
- gas recovery
- 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 - Fee Related
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Abstract
The utility model discloses a casing-head gas recovery device for electrohydraulic push rods, which is designed for solving the casing-head gas recovery problem of oil wells. The device is implemented by that: an oil pump is driven by a motor so as to bidirectionally output hydraulic oil to an oil cylinder, thereby realizing a reciprocating motion of a connecting fork of an electrohydraulic push rod; then, the connecting fork drives piston rods of air cylinders to carry out a synchronous reciprocating motion, thereby realizing the compression pressure-boosting of casing-head gas; and then the casing-head gas is transmitted to an oil pipeline. The device disclosed by the utility model is controlled by using a frequency converter, so that the operation frequency of the air cylinders can be changed. The two air cylinders can be flexibly connected in parallel or in series according to the quantity and pressure of the gas. The device is simple in operation, easy to maintain, simple in construction and installation, and hot-work-free.
Description
Technical field
The utility model relates to a kind of Electrohydraulic push rod casing gas recovering device, belongs to the oil-gas field development technical field.
Background technique
Long celebrating oil field part sleeve pipe gas " is ignited the torch " in the well site on the spot and is burnt, and causes environmental pollution, energy waste.At present, the oil well that the sleeve pipe atmospheric pressure is high utilizes pressure fixing valve to connect the oil jacket annular space and advances oil-gas gathering and transportation.In recent years, also carry out site tests such as inflating pump, synchronous revolving compressor, fuel gas generation, but all do not formed series product.Pressure fixing valve recovery of casing gas is between the outlet of pumping unit well head oil pipe flow line and annular space, a pressure fixing valve to be installed, and casing pressure is during greater than the oil-collecting back pressure, and pressure fixing valve is opened, and sleeve pipe gas gets into flow line, together carries in company with crude oil.
Yet winter, pressure fixing valve froze stifledly easily, can't reclaim well casing gas.When Oil Well Back Pressure was high, sleeve pipe gas can't be depressed into oil pipeline certainly, and the sleeve pipe atmospheric pressure raises and is prone to cause the deep-well pump efficiency to reduce, form gas lock.Utilize pressure fixing valve most of well site in winter sleeve pipe gas to reclaim.
Summary of the invention
The purpose of the utility model is to provide a kind of Electrohydraulic push rod casing gas recovering device, and this is a kind of safety, environmental protection, economic and practical simple and easy well casing gas recovery device, and the sleeve pipe gas supercharging of invalid burning is reclaimed.
The concrete technology contents of the utility model is following:
The oil cylinder of cylinder and connection motor and oil pump all is located on the base, and clevis connects the piston rod of oil cylinder and cylinder simultaneously, and sleeve pipe tracheae line is connected with cylinder, is provided with safety check therebetween.
Connect motor power; The two-way output hydraulic oil of motor drives oil pump is realized the to-and-fro motion of Electrohydraulic push rod clevis to oil cylinder, and the piston rod that drives cylinder through clevis moves reciprocatingly synchronously; Realization is to the compression supercharging of sheath gas, after be delivered to oil pipeline.
When the utility model has solved Oil Well Back Pressure greater than the sleeve pipe atmospheric pressure, the irretrievable problem of sleeve pipe gas.It adopts Frequency Converter Control, can change the cylinder operation frequency.Two cylinders can be according to tolerance what and pressure height, and the series and parallel that carries out the two flexibly connects.This device is simple to operate, easy care, and construction and installation are easy, need not fire operation.
Description of drawings
Accompanying drawing is an Electrohydraulic push rod casing gas recovering device schematic representation.
Embodiment
Embodiment:
Embodiment to the utility model further specifies with reference to accompanying drawing:
With cylinder 5 with 7 and the oil cylinder 3 that is connected motor 1 and oil pump 4 all be installed on the base 6, clevis 12 is connected with the piston rod 11 of oil cylinder 3 and two cylinders simultaneously, again sleeve pipe tracheae line 9 is connected with 7 with two cylinders 5, and connects safety check 8.Sleeve pipe gas gets into oil pipelines from sleeve pipe gas outlet 2 after being compressed supercharging from sleeve pipe gas import 10 entering cylinders.
Claims (1)
1. Electrohydraulic push rod casing gas recovering device; It is characterized in that: cylinder (5 and 7) and be connected motor (1) and the oil cylinder (3) of oil pump (4) all is located on the base (6); Clevis (12) connects the piston rod (11) of oil cylinder (3) and cylinder (5 and 7) simultaneously; Sleeve pipe tracheae line (9) is connected with cylinder (5 and 7), is provided with safety check (8) therebetween.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204069544U CN202338518U (en) | 2011-10-21 | 2011-10-21 | Casing-head gas recovery device for electrohydraulic push rods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204069544U CN202338518U (en) | 2011-10-21 | 2011-10-21 | Casing-head gas recovery device for electrohydraulic push rods |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202338518U true CN202338518U (en) | 2012-07-18 |
Family
ID=46487210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204069544U Expired - Fee Related CN202338518U (en) | 2011-10-21 | 2011-10-21 | Casing-head gas recovery device for electrohydraulic push rods |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202338518U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102747989A (en) * | 2012-07-29 | 2012-10-24 | 上海亿景能源科技有限公司 | Oil well casing gas collecting device |
-
2011
- 2011-10-21 CN CN2011204069544U patent/CN202338518U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102747989A (en) * | 2012-07-29 | 2012-10-24 | 上海亿景能源科技有限公司 | Oil well casing gas collecting device |
| CN102747989B (en) * | 2012-07-29 | 2015-02-18 | 上海亿景能源科技有限公司 | Oil well casing gas collecting device |
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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 |
Granted publication date: 20120718 Termination date: 20201021 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |