CN201963278U - Oil well casing gas pressurizing and recovering device - Google Patents
Oil well casing gas pressurizing and recovering device Download PDFInfo
- Publication number
- CN201963278U CN201963278U CN2011200385256U CN201120038525U CN201963278U CN 201963278 U CN201963278 U CN 201963278U CN 2011200385256 U CN2011200385256 U CN 2011200385256U CN 201120038525 U CN201120038525 U CN 201120038525U CN 201963278 U CN201963278 U CN 201963278U
- Authority
- CN
- China
- Prior art keywords
- gas
- pressure
- casing
- pipeline
- oil
- 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
- 239000003129 oil well Substances 0.000 title abstract description 13
- 238000011084 recovery Methods 0.000 claims description 22
- 238000007599 discharging Methods 0.000 claims description 17
- 239000003208 petroleum Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 230000008676 import Effects 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 15
- 239000010779 crude oil Substances 0.000 abstract description 2
- 241000191291 Abies alba Species 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 89
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000003345 natural gas Substances 0.000 description 3
- 230000007717 exclusion Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The oil well casing gas pressurizing and recovering device is used in recovering casing gas from oil producing well in oil field. The oil delivery pipe at the wellhead of the Christmas tree is connected with a constant pressure air release valve, and the air inlet of the constant pressure air release valve is connected with a high-pressure hose; the other end of the high-pressure hose is connected with an outlet pipe of the gas booster pump, and the outlet pipe of the gas booster pump is connected with an outlet of the gas booster pump; the outlet pipe of the gas booster pump is provided with a three-way connecting pipeline, the other end of the pipeline is connected with the outlet of the one-way valve, the inlet of the one-way valve is provided with a pipeline connected with a gas flowmeter, and the inlet pipeline of the gas flowmeter is connected with a pressure gauge; an inlet pipeline of the gas flowmeter is connected with the casing joint; the pipeline between the gas flowmeter and the one-way valve is provided with a three-way connection gas booster pump inlet pipe. The effect is as follows: when the pressure of the casing pipe of the oil well is higher than the back pressure of the oil pipe, the casing gas can be recovered at a constant pressure, and the purposes of improving the pump efficiency and the crude oil yield are achieved; when the casing pressure is lower than the back pressure, the low-pressure casing gas is pressurized to a state larger than the back pressure of the oil well, and the casing gas can be recovered.
Description
Technical field
The utility model relates to oil recovery technique field, oil field.Being particularly related to the recovery isolated plant of a kind of well casing gas in the oil recovery process, is a kind of well casing gas boosting recovery device.
Background technology
Well casing gas is as the retail natural gas resource of association in the oil well production process, and along with the natural depletion of oil-well strata energy, casing pressure progressively reduces.Casing pressure is lower than the back pressure of oil well main line and can't enters production trunk line automatically.But in a single day sleeve pipe gas build the pressure, and gas is invaded oil well pump, will cause the oil well underproduction.Therefore, generally adopt method, lower the pressure in the sleeve pipe empty exclusion sleeve gas.Caused sleeve pipe gas contaminated environment thus, the oil recovery well site is inflammable and explosive and the serious waste of natural gas resource.If will reclaim after the supercharging of low-tension bushing gas, and be used for gas for domestic use and natural gas power, not only have tangible economic benefit, reach energy-saving and emission-reduction, have good comprehensive social benefit.
At present, the method for domestic recovery low-tension bushing gas mainly contains two kinds.The one, cylinder is installed on oil pumper or the production tree, utilize the reciprocating motion of oil pumper walking beam or polished rod, the interlock cylinder piston moves back and forth, and reaches the purpose of supercharging sleeve pipe gas.But the interlock mode exists installation cost height, construction to get angry and employs engineering truck and running the time influences the drawback of the safe operation of oil pumper like this, even the accident of oil pumper " overturning " occurs.The 2nd, adopt vehicle-mounted compressor unit, the method for mobile recovery of casing gas.Two problems of main existence during this method is used: mainly be impossible reclaim each casing gas simultaneously; Secondly, it is low that rate is implemented in manpower and freight height and measure, can not produce the scale economic benefit.
The utility model content
The purpose of this utility model is: a kind of well casing gas boosting recovery device is provided, adopts the rely on oneself method of supercharging of sleeve pipe gas, reach the purpose of supercharging recovery of casing gas.
The technical solution adopted in the utility model is: the well casing gas boosting recovery device, mainly form by valve discharging gas under certain pressure, high-pressure hose, casing joint, pressure meter, gas flowmeter, one way valve and gas booster pump, it is characterized in that: production tree well head petroleum pipeline connects valve discharging gas under certain pressure, valve discharging gas under certain pressure set casing pressure under reasonable casing pressure in petroleum pipeline exclusion sleeve gas, and stop the crude oil of petroleum pipeline inside to flow backwards.The air inlet port of valve discharging gas under certain pressure connects high-pressure hose; The other end of high-pressure hose connects the gas boosting pump discharge pipe, and the gas boosting pump discharge pipe connects the gas boosting delivery side of pump; On the gas boosting pump discharge pipe threeway is arranged, be connected with pipeline by threeway, the other end of pipeline connects the outlet of one way valve, the inlet of one way valve has pipeline to connect the gas flowmeter outlet, be connected with pressure meter on the gas flowmeter suction line, the variation of pressure meter energy monitoring sleeve pressure, the variation of flow meter energy monitoring sleeve gas instantaneous delivery; The suction line of gas flowmeter is connected with casing joint; On the pipeline between gas flowmeter and the one way valve threeway is arranged, be connected with gas boosting pump inlet pipe by threeway, gas boosting pump inlet pipe is connected with the gas boosting pump inlet.One way valve and pneumatic booster pump parallel connection, when preventing that casing pressure is higher than back pressure suddenly, the throttling of gas boosting pump and the sleeve pipe that the produces phenomenon that builds the pressure takes place, and prevents that the sleeve pipe gas after the supercharging from returning in the sleeve pipe.Pneumatic booster pump is to rely on the sleeve pipe atmospheric pressure as driving pressure.Gas boosting pump and valve discharging gas under certain pressure are existing products, and city's field energy is purchased.
In order to protect boosting recovery device not to be subjected to the influence of wild environment.Be welded with airtight casing, casing is welded in the casing joint, and pressure meter, gas flowmeter, one way valve, gas boosting pump discharge pipe, gas boosting pump inlet pipe and gas booster pump are arranged in the casing.
The operating principle of summary well casing gas boosting recovery device: consult Fig. 1.Casing joint 5 is connected with the casing of oil-pumping well outlet of producing; The end of petroleum pipeline 1 connects a valve discharging gas under certain pressure 2, and rotation vent valve pressure regulation bar 3 is also adjusted the pressure of the emission gases of valve discharging gas under certain pressure 2.When oil well casing pressure was higher than the pressure of setting, sleeve pipe gas directly entered valve discharging gas under certain pressure 2 by ball-and-seat 9 and venting high-pressure rubber pipe 4, and is discharged in the petroleum pipeline 1 according to the pressure of setting by valve discharging gas under certain pressure 2.When casing pressure during less than oil pipe back pressure (pressure of setting), gas enters pneumatic booster pump 12 after by gas flowmeter 8, when gas boosting pump 12 is pressurized to air pressure greater than the oil pipe back pressure, gas enters valve discharging gas under certain pressure 2 again, enter measuring station by oil well petroleum pipeline 1 then, reach the purpose of recovery.
The beneficial effects of the utility model: the utility model well casing gas boosting recovery device, when oil well casing pressure was higher than the oil pipe back pressure, energy level pressure recovery of casing gas reached the purpose that improves pump efficiency and crude output; When casing pressure is lower than back pressure, low-tension bushing gas is pressurized to greater than the Oil Well Back Pressure state, also can recovery of casing gas.
Description of drawings
Fig. 1 is the utility model well casing gas boosting recovery device structural profile schematic diagram.
Among the figure, the 1-petroleum pipeline; The 2-valve discharging gas under certain pressure; 3-vent valve pressure regulation bar; The 4-high-pressure hose; The 5-casing joint; The 6-casing; The 7-pressure meter; The 8-gas flowmeter; The 9-one way valve; 10-gas boosting pump discharge pipe; 11-gas boosting pump inlet pipe; 12-gas boosting pump.
The specific embodiment
Embodiment 1: with a well casing gas boosting recovery device is example, and the utility model is described in further detail.
Consult Fig. 1.The utility model well casing gas boosting recovery device mainly is made up of valve discharging gas under certain pressure 2, high-pressure hose 4, casing joint 5, casing 6, pressure meter 7, gas flowmeter 8, one way valve 9 and gas booster pump 12.
The end of production tree well head petroleum pipeline 1 connects a valve discharging gas under certain pressure 2.The air inlet port of valve discharging gas under certain pressure 2 connects a high-pressure hose 4.The other end of high-pressure hose 4 connects gas boosting pump discharge pipe 10.Gas boosting pump discharge pipe 10 connects the outlet of gas boosting pump 12; A threeway is arranged on the gas boosting pump discharge pipe 10, be connected with a pipeline by this threeway, the other end of pipeline connects the outlet of one way valve 9, and the inlet of one way valve 9 has pipeline to connect gas flowmeter 8 outlets.Be connected with pressure meter 7 on gas flowmeter 8 suction lines.The suction line of gas flowmeter 8 is connected with casing joint 5.A threeway is arranged on the pipeline between gas flowmeter 8 and the one way valve 9, be connected with gas boosting pump inlet pipe 11 by this threeway, gas boosting pump inlet pipe 11 is connected with 12 imports of gas boosting pump.
Be welded with an airtight casing 6, casing 6 is welded in the casing joint 5.Pressure meter 7, gas flowmeter 8, one way valve 9, gas boosting pump discharge pipe 10, gas boosting pump inlet pipe 11 and gas booster pump 12 are in casing 6.
Claims (2)
1. well casing gas boosting recovery device, mainly form by valve discharging gas under certain pressure (2), high-pressure hose (4), casing joint (5), pressure meter (7), gas flowmeter (8), one way valve (9) and gas booster pump (12), it is characterized in that: production tree well head petroleum pipeline (1) connects valve discharging gas under certain pressure (2), and the air inlet port of valve discharging gas under certain pressure (2) connects high-pressure hose (4); The other end of high-pressure hose (4) connects gas boosting pump discharge pipe (10), and gas boosting pump discharge pipe (10) connects the outlet of gas boosting pump (12); The gas boosting pump discharge pipe has threeway on (10), be connected with pipeline by threeway, the other end of pipeline connects the outlet of one way valve (9), and the inlet of one way valve (9) has pipeline to connect gas flowmeter (8) outlet, is connected with pressure meter (7) on gas flowmeter (8) suction line; The suction line of gas flowmeter (8) is connected with casing joint (5); On the pipeline between gas flowmeter (8) and the one way valve (9) threeway is arranged, be connected with gas boosting pump inlet pipe (11) by threeway, gas boosting pump inlet pipe (11) is connected with gas boosting pump (12) import.
2. well casing gas boosting recovery device according to claim 1, it is characterized in that: be welded with airtight casing (6), casing (6) is welded in the casing joint (5), and pressure meter (7), gas flowmeter (8), one way valve (9), gas boosting pump discharge pipe (10), gas boosting pump inlet pipe (11) and gas booster pump (12) are arranged in the casing (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200385256U CN201963278U (en) | 2011-02-14 | 2011-02-14 | Oil well casing gas pressurizing and recovering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200385256U CN201963278U (en) | 2011-02-14 | 2011-02-14 | Oil well casing gas pressurizing and recovering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201963278U true CN201963278U (en) | 2011-09-07 |
Family
ID=44525813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200385256U Expired - Lifetime CN201963278U (en) | 2011-02-14 | 2011-02-14 | Oil well casing gas pressurizing and recovering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201963278U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107916912A (en) * | 2017-11-15 | 2018-04-17 | 长沙宁湖机械设备有限公司 | A kind of natural gas recovery device for oil well |
-
2011
- 2011-02-14 CN CN2011200385256U patent/CN201963278U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107916912A (en) * | 2017-11-15 | 2018-04-17 | 长沙宁湖机械设备有限公司 | A kind of natural gas recovery device for oil well |
| CN107916912B (en) * | 2017-11-15 | 2019-12-10 | 洋浦宇顺航空燃料有限公司 | Oil well natural gas recovery device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202064905U (en) | Gas lift liquid drainage device of vehicle-mounted natural gas compressor | |
| CN103912253B (en) | Gas well single well gas recovery system and low-pressure recovery method thereof | |
| CN102747989B (en) | Oil well casing gas collecting device | |
| CN108019190B (en) | Full-closed mixed transportation depressurization circulating gas lift system | |
| CN201884015U (en) | Liquid drainage and gas production device for natural gas well | |
| CN201614927U (en) | Pressurized deflating oil-extraction combining device linked with polished rod | |
| CN205137057U (en) | Turbocharging system | |
| CN110145290B (en) | Liquid nitrogen multistage fracturing system and method for hot dry rock geothermal well | |
| CN104405343A (en) | Associated gas recovery device for cluster well group and recovery method thereof | |
| CN202194628U (en) | Integrated device of Christmas tree and gas well ground construction assembly skid | |
| CN204312030U (en) | Associated gas recovery device for cluster well group | |
| CN102352747B (en) | Pressure-control injection yield-increasing method for coal-bed gas well | |
| CN102426084A (en) | Non-metal pipeline hydraulic pressure seepage verifying attachment | |
| CN201963278U (en) | Oil well casing gas pressurizing and recovering device | |
| CN204241322U (en) | A kind of assembled duct test device | |
| CN202228028U (en) | Downhole bailing device in oil field | |
| CN202362121U (en) | Non-metal pipeline hydraulic pressure leakage inspection device | |
| CN202814805U (en) | Concrete pipe inner water pressure vertical type detection device | |
| CN202755949U (en) | Cylinder-type wellhead pressure device | |
| CN201416391Y (en) | Down-hole supercharger | |
| CN104179657A (en) | Passive pneumatic pressurizing device for underground coal mine | |
| CN203978397U (en) | Compressed air energy oil rig | |
| CN202391671U (en) | Double-high hydraulic submersible draw-drain type fluid pump | |
| CN105649580B (en) | A kind of twin-tub gas drive air balanced pumping unit | |
| CN202834758U (en) | Natural gas integrated standard station equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110907 |