CN109538169A - A kind of simple oil field shaft mouth associated gas collection device and method - Google Patents
A kind of simple oil field shaft mouth associated gas collection device and method Download PDFInfo
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- CN109538169A CN109538169A CN201811506415.0A CN201811506415A CN109538169A CN 109538169 A CN109538169 A CN 109538169A CN 201811506415 A CN201811506415 A CN 201811506415A CN 109538169 A CN109538169 A CN 109538169A
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- piston
- inflator
- check valve
- gas
- axis side
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
Abstract
A kind of simple oil field shaft mouth associated gas collection device, including lid side inspiratory check valve, lid side venting check valve, axis side inspiratory check valve, axis side venting check valve, steel piston inflator, piston, power source, upper connecting rod, connecting rod position adjuster, cylinder bottom blowdown valve and respective lines etc., the lid side inspiratory check valve entrance connection Christmas tree casing gas exports gate valve, outlet connection steel piston air cylinder cover side-inlet；Axis side venting check valve entrance connects steel piston inflator axis side exhaust outlet, outlet connection associated gas collection conduit；Sewage draining exit, and mounting cylinder bottom blowdown valve is arranged in steel piston inflator bottom;The invention has the advantages that: reduce the discharge of pollutant；Process is simple, can make, easy for installation, and maintenance is simple；Low investment, low operating cost；List double acting can be achieved flexibly to switch；Compression ratio range is big, adjustable；It is driven without additional power supply；It is applicable in the various operating conditions such as lasting, interval；Associated gas suitable for casing pressure lower than back pressure is collected.
Description
Technical field
The present invention relates to oil exploitation technologies, and in particular to a kind of simple oil field shaft mouth associated gas collection device and method.
Background technique
Energy shortage is the bottleneck and a relationship China's economic social development Major Strategic of overall importance of Chinese development
Problem.The effective ways for solving this problem are to increase income and decrease expenditure, and the recycling and utilization of associated gas are exactly one to increase income and decrease expenditure
Item important channel.
Chinese associated gas is resourceful.According to incompletely statistics, only partially because the small oil field of territory restriction, dispersion is annual
The associated gas of burn-up is as high as 12 × 108m3Left and right, is equivalent to 12 × 106T petroleum.The collection method of associated gas mainly has at present
It is several below:
(1) movable casing gas recovery device.The structure of movable casing gas recovery device is mainly by coupling part, measurement unit
Point, the four parts composition such as compression portion and anti-theft device.Main to realize casing gas recycling by natural gas compressor, which needs
Compressor is newly purchased, consumption electric power realizes casing gas recycling
(2) valve discharging gas under certain pressure.This device is actually to dispose a safety valve in the top of oil well casing, at any time according to oil well
The size of back pressure is opened, if casing gas has reached annular space aggregation pressure set points after overflowing, will be imported into production tree stream
Journey mixes it with crude oil, is transported to downstream jointly.The device cannot achieve the recycling of continuous casing gas.
(3) skid recyclable device.This device is mainly used for the recycling of lighter hydrocarbons, but petroleum higher suitable for association Gas content
The lower scattered oil well of yield can sufficiently be recycled lighter hydrocarbons using small-sized skid-mounted device, be used for used in generating equipment itself, or
Be treatment in situ be LNG or CNG, transported outward.Device is complicated, and investment is high, and energy consumption is high, the oil well for being suitble to associated gas yield high.
(4) coordinated type lower pressure extraction cylinder recyclable device.This recyclable device does not need other power, it is only necessary to will be evacuated
The piston rod and walking beam of cylinder weld together the fortune repeatedly that pumping cylinder piston can be driven by the up and down motion of walking beam
It is dynamic, thus realize the suction to casing gas, compression, it, can be via production tree process after casing gas compression to a certain extent
Together with crude oil mixed-transferring, send to downstream carry out using.Device work does not need additional power, and can effectively improve oil pumping
The counterbalance effect of machine reduces the output power of motor, there is certain energy-saving effect；Wellhead back pressure can be reduced, pumping unit is reduced
Polished rod load.
As country is continuing to increase environmental pollution caused by during energy extraction and energy waste renovation dynamics,
VOC emission norm controlling is increasingly stringent, and energy-saving and emission-reduction are one of the binding indicators that must be completed, be Resources for construction economizing type and
The impetus of Environment-friendly city.Rationally recycling associated gas resource has been current urgent problem to be solved, and
One inexorable trend of the long-term sustainable development of the energy.
Summary of the invention
The object of the present invention is to provide a kind of simple oil field shaft mouth associated gas collection device and methods.
The invention mainly includes what is realized by following technical solution:
A kind of simple oil field shaft mouth associated gas collection device, including lid side inspiratory check valve, lid side venting check valve, axis side air-breathing
Check-valves, axis side venting check valve, steel piston inflator, piston, power source, upper connecting rod, connecting rod position adjuster, cylinder bottom blowdown
Valve and respective lines etc., it is characterised in that lid side inspiratory check valve entrance connects Christmas tree casing gas and exports gate valve, outlet connection
Steel piston air cylinder cover side-inlet；Axis side inspiratory check valve entrance connects another outlet gate valve of Christmas tree casing gas, and outlet connects
Connect steel piston inflator axis side-inlet；Lid side venting check valve entrance connects steel piston air cylinder cover side exhaust outlet, and outlet connects
Connect associated gas collection conduit；Axis side venting check valve entrance connects steel piston inflator axis side exhaust outlet, outlet connection associated gas
Collection conduit；Steel piston inflator power source is utilized and is used between well head beam pumping unit, with steel piston inflator, piston shaft
Connecting-bar connector connection；Sewage draining exit, and mounting cylinder bottom blowdown valve is arranged in steel piston inflator bottom.
Connecting rod position adjuster is set between the piston shaft and connecting-bar connector.
The steel piston inflator, power source utilize belt type pumping unit, pass through polished rod eye and realize and steel piston gas
Cylinder, piston axis connection.
The steel piston inflator can be used seamless steel pipe or welded still pipe and directly make at the scene.
The piston uses leather bucket, cast-iron piston, steel pistons, all-aluminium piston or built-up piston.
The collection method are as follows: wellhead sleeve gas is under the effect of increasing of piston of air inflator, lid side inspiratory check valve flap
It opens, steel piston air cylinder cover side air-pressure chamber is entered by lid side inspiratory check valve；Under the decline effect of piston of air inflator, lid side
Inspiratory check valve flap is closed, and gas backflow is prevented；Wellhead sleeve gas is under the decline effect of piston of air inflator, axis side air-breathing non-return
Valve flap is opened, and enters steel piston inflator axis side air-pressure chamber by axis side inspiratory check valve；In the effect of increasing of piston of air inflator
Under, axis side inspiratory check valve flap is closed, and gas backflow is prevented；Under the decline effect of steel piston piston of air inflator, steel is living
Associated gas collection conduit is entered by lid side venting check valve after gas boosting in plug air cylinder cover side air-pressure chamber；In piston of air inflator
Under effect of increasing, lid side venting check valve flap is closed, and prevents gas backflow；Under the effect of increasing of piston of air inflator, steel is living
Associated gas collection conduit is entered by axis side venting check valve after gas boosting in plug inflator axis side air-pressure chamber；In piston of air inflator
Under decline effect, axis side venting check valve flap is closed, and prevents gas backflow；When steel piston inflator inner piston rises, casing
Gas enters air cylinder cover side air-pressure chamber, while the indoor casing gas of inflator axis side air pressure is pressurized, is discharged into associated gas collection conduit.When
When piston of air inflator pushes, casing gas enters inflator axis side air-pressure chamber (7), while air pressure indoor casing gas in air cylinder cover side is added
Pressure, is discharged into associated gas collecting pipe；Connecting rod position adjuster adjusts piston stroke, realizes to Christmas tree casing gas tolerance and pressure
It adjusts.
The steel piston inflator inner piston is double acting principle, it can be achieved that receiving simultaneously to Christmas tree casing gas bilateral
Collection；It can also be switched by control shaft side inspiratory check valve, lid side inspiratory check valve, realize and Christmas tree casing gas unilateral side is collected,
Realize casing associated gas height tolerance flexible Application.
The present invention reduces bottom pressure by the collection of casing gas not only on oil well output without influence, helps to mention
High well yield；Oil-gas closed conveying can be achieved in the present invention, reduces the discharge of pollutant；Process of the present invention is simple, live can make
Make, easy for installation, maintenance is simple；Low investment, low operating cost, high performance-price ratio；Range of flow is wide, it can be achieved that single double acting is flexible
Switching；Compression ratio range is big, adjustable；It is driven without additional power supply；It is applicable in the various operating conditions such as lasting, interval；It is forced down suitable for set
It is collected in the associated gas of back pressure.The present invention in oil field by promoting and applying, it can be achieved that the collection of low pressure associated gas is continual and steady continuous
Gas supply reduces pollutant emission, has preferable economic benefit and environmental benefit.
Detailed description of the invention
Attached drawing 1 is the apparatus structure schematic diagram of the invention patent.
In figure: 1, power source, 2, upper connecting rod, 3, connecting-bar connector, 4, connecting rod position adjuster, 5, axis side air-breathing non-return
Valve, 6, axis side venting check valve, 7, axis side air-pressure chamber, 8, lid side air-pressure chamber, 9, piston, 10, steel piston inflator, 11, piston
Axis, 12, lid side inspiratory check valve, 13, cylinder bottom blowdown valve, 14, lid side venting check valve.
Specific embodiment
The embodiment of the invention patent is described in detail with reference to the accompanying drawing.
A kind of simple oil field shaft mouth associated gas collection device, including lid side inspiratory check valve 12, lid side venting check valve 14,
Axis side inspiratory check valve 5, axis side venting check valve 6, steel piston inflator 10, piston 9, power source 1, upper connecting rod 2, connecting rod position
Adjuster 4, cylinder bottom blowdown valve 13 and respective lines etc., 12 entrance of the lid side inspiratory check valve connection Christmas tree casing gas go out
Mouth gate valve, outlet connection 10 lid side-inlet of steel piston inflator；It is another that inspiratory check valve 5 entrance in axis side connects Christmas tree casing gas
One outlet gate valve, outlet connection 10 axis side-inlet of steel piston inflator；Venting check valve 12 entrance in lid side connects steel piston
10 lid side exhaust outlet of inflator, outlet connection associated gas collection conduit；Venting check valve 6 entrance in axis side connects steel piston inflator 10
Axis side exhaust outlet, outlet connection associated gas collection conduit；Steel piston inflator 10, power source 1 utilize well head beam pumping unit,
It is connect between steel piston inflator 10, piston shaft 11 using connecting-bar connector 3；Blowdown is arranged in 10 bottom of steel piston inflator
Mouthful, and mounting cylinder bottom blowdown valve 13.
Connecting rod position adjuster 4 is set between the piston shaft 11 and connecting-bar connector 3.
The steel piston inflator 10, power source 1 utilize belt type pumping unit, pass through polished rod eye and realize and steel piston
Inflator 10, piston shaft 11 connect.
The steel piston inflator 10 can be used seamless steel pipe or welded still pipe and directly make at the scene.
The piston 9 is using leather bucket, cast-iron piston, steel pistons, all-aluminium piston or built-up piston.
The collection method are as follows: wellhead sleeve gas is under the effect of increasing of piston of air inflator, 12 valve of lid side inspiratory check valve
Valve is opened, and enters 10 lid side air-pressure chamber 8 of steel piston inflator by lid side inspiratory check valve 12；It is acted in the decline of piston of air inflator
Under, inspiratory check valve 12 flap in lid side is closed, and gas backflow is prevented；Wellhead sleeve gas is under the decline effect of piston of air inflator, axis
Inspiratory check valve 5 flap in side is opened, and enters 10 axis side air-pressure chamber 7 of steel piston inflator by axis side inspiratory check valve 5；In inflator
Under the effect of increasing of piston, inspiratory check valve 5 flap in axis side is closed, and prevents gas backflow；In 10 piston of steel piston inflator
Under decline effect, association is entered by lid side venting check valve 14 after gas boosting in 10 lid side air-pressure chamber 8 of steel piston inflator
Gas collection conduit；Under the effect of increasing of piston of air inflator, venting check valve 14 flap in lid side is closed, and prevents gas backflow；In gas
Under the effect of increasing of cylinder piston, in 10 axis side air-pressure chamber 7 of steel piston inflator after gas boosting by axis side venting check valve 6 into
Enter associated gas collection conduit；Under the decline effect of piston of air inflator, venting check valve 6 flap in axis side is closed, and gas backflow is prevented；
When 10 inner piston 9 of steel piston inflator rises, casing gas enters air cylinder cover side air-pressure chamber 8, while in inflator axis side air-pressure chamber 7
Casing gas is pressurized, is discharged into associated gas collection conduit.When piston of air inflator pushes, casing gas enters inflator axis side air-pressure chamber 7, together
When air cylinder cover side air-pressure chamber 8 in casing gas it is pressurized, be discharged into associated gas collecting pipe；Connecting rod position adjuster 4 adjusts 9 row of piston
Journey realizes the adjusting to Christmas tree casing gas tolerance and pressure.
10 inner piston 9 of steel piston inflator is double acting principle, it can be achieved that simultaneously to Christmas tree casing gas bilateral
It collects；It can also be switched, be realized unilateral to Christmas tree casing gas by control shaft side inspiratory check valve 5, lid side inspiratory check valve 12
It collects, realizes casing associated gas height tolerance flexible Application.
As shown in Figure 1, the present invention is a kind of easy oil field shaft mouth associated gas collection device and method.Steel piston inflator
The movement of piston 9 is by power source 1(walking beam or polished rod eye in 10) power is provided by upper connecting rod 2 and connecting-bar connector 3, pass through company
The stroke of the adjustable piston rod of bar position control 4；When 10 9 castering action of piston of steel piston inflator, lid side air-pressure chamber 8
12 flap of lid side inspiratory check valve of side is opened, and christmas tree casing associated gas passes through lid side inspiratory check valve 12, is full of lid side afterwards
Air-pressure chamber 8, while venting check valve 14 flap in lid side is closed, and gas backflow is prevented；The axis side air-breathing non-return of 7 side of axis side air-pressure chamber
5 flap of valve is closed, and prevents gas backflow, while venting check valve 6 flap in axis side is opened, associated gas is pressurized in axis side air-pressure chamber 7
Enter associated gas multi-purpose station pipeline afterwards.
When 10 9 suppressing action of piston of steel piston inflator, 5 flap of axis side inspiratory check valve of axis side air-pressure chamber side 7 is opened,
Associated gas is full of axis side air-pressure chamber 7 under differential pressure action, while venting check valve 6 flap in axis side is closed, and is prevented in multi-purpose station pipeline
Gas backflow enters axis side air-pressure chamber 7；12 flap of lid side inspiratory check valve of 8 side of lid side air-pressure chamber is closed, and gas backflow is prevented
Christmas tree casing, while venting check valve 14 flap in lid side is opened, associated gas enters outside associated gas after the pressurization of lid side air-pressure chamber 8
Defeated pipeline.
Pass through power source 1(walking beam or polished rod eye) power is provided, piston 9 is back and forth run in steel piston inflator 10, is passed through
This process flow method is, it can be achieved that oil field shaft mouth associated gas is collected.It is fixed by steel piston inflator 10 as associated gas is collected
Phase opens cylinder bottom blowdown valve 13, excludes lime set and impurity in air-pressure chamber；It is normal by manually adjusting axis side 5 flaps of inspiratory check valve
It opens, axis side 6 flaps of venting check valve are normally closed, it can be achieved that single double acting of this technique collection method flexibly switches.
Claims (7)
1. a kind of simple oil field shaft mouth associated gas collection device, including lid side inspiratory check valve (12), lid side venting check valve
(14), axis side inspiratory check valve (5), axis side venting check valve (6), steel piston inflator (10), piston (9), power source (1),
Upper connecting rod (2), connecting rod position adjuster (4), cylinder bottom blowdown valve (13) and respective lines etc., it is characterised in that: the lid side
Inspiratory check valve (12) entrance connects Christmas tree casing gas and exports gate valve, outlet connection steel piston inflator (10) lid side air inlet
Mouthful；Axis side inspiratory check valve (5) entrance connects another outlet gate valve of Christmas tree casing gas, outlet connection steel piston inflator (10)
Axis side-inlet；Lid side venting check valve (12) entrance connects steel piston inflator (10) lid side exhaust outlet, outlet connection association
Gas collection conduit；Axis side venting check valve (6) entrance connects steel piston inflator (10) axis side exhaust outlet, outlet connection associated gas
Collection conduit；Steel piston inflator (10) power source (1) utilizes well head beam pumping unit, with steel piston inflator (10), work
It fills in and is connected between axis (11) using connecting-bar connector (3)；Sewage draining exit is arranged in steel piston inflator (10) bottom, and mounting cylinder bottom is arranged
Dirty valve (13).
2. a kind of simple oil field shaft mouth associated gas collection device according to claim 1, it is characterised in that the piston
Connecting rod position adjuster (4) are set between axis (11) and connecting-bar connector (3).
3. a kind of simple oil field shaft mouth associated gas collection device according to claim 1, it is characterised in that the steel
Piston tube (10), power source (1) utilize belt type pumping unit, are realized and steel piston inflator (10), piston by polished rod eye
Axis (11) connection.
4. a kind of simple oil field shaft mouth associated gas collection device according to claim 1, it is characterised in that the steel
Piston tube (10) can be used seamless steel pipe or welded still pipe and directly make at the scene.
5. a kind of simple oil field shaft mouth associated gas collection device according to claim 1, it is characterised in that the piston
(9) leather bucket, cast-iron piston, steel pistons, all-aluminium piston or built-up piston are used.
6. a kind of simple oil field shaft mouth associated gas collection device described in -5 any one according to claim 1, it is characterised in that:
The collection method are as follows: wellhead sleeve gas under the effect of increasing of piston of air inflator, open by lid side inspiratory check valve (12) flap,
Enter steel piston inflator (10) lid side air-pressure chamber (8) by lid side inspiratory check valve (12)；It is acted in the decline of piston of air inflator
Under, lid side inspiratory check valve (12) flap is closed, and gas backflow is prevented；Wellhead sleeve gas piston of air inflator decline effect under,
Axis side inspiratory check valve (5) flap is opened, and enters steel piston inflator (10) axis side air-pressure chamber by axis side inspiratory check valve (5)
(7)；Under the effect of increasing of piston of air inflator, axis side inspiratory check valve (5) flap is closed, and prevents gas backflow；In steel piston
Under the decline effect of inflator (10) piston, arranged after steel piston inflator (10) lid side air-pressure chamber (8) interior gas boosting by lid side
Gas check-valves (14) enters associated gas collection conduit；Under the effect of increasing of piston of air inflator, lid side venting check valve (14) flap
It closes, prevents gas backflow；Under the effect of increasing of piston of air inflator, steel piston inflator (10) axis side air-pressure chamber (7) interior gas
Associated gas collection conduit is entered by axis side venting check valve (6) after pressurization；Under the decline effect of piston of air inflator, the exhaust of axis side
Check-valves (6) flap is closed, and gas backflow is prevented；When steel piston inflator (10) inner piston (9) rises, casing gas enters inflator
Lid side air-pressure chamber (8), while the casing gas in inflator axis side air-pressure chamber (7) is pressurized, is discharged into associated gas collection conduit.Work as inflator
When piston pushes, casing gas enters inflator axis side air-pressure chamber (7), while the casing gas in air cylinder cover side air-pressure chamber (8) is pressurized,
It is discharged into associated gas collecting pipe；Connecting rod position adjuster (4) adjusts piston (9) stroke, realizes to Christmas tree casing gas tolerance and pressure
The adjusting of power.
7. a kind of simple oil field shaft mouth associated gas collection device according to claim 6, it is characterised in that: the steel
Piston tube (10) inner piston (9) is double acting principle, it can be achieved that being collected simultaneously to Christmas tree casing gas bilateral；Control can also be passed through
Axis side processed inspiratory check valve (5), lid side inspiratory check valve (12) switch, realize and collect to Christmas tree casing gas unilateral side, realize set
Pipe associated gas height tolerance flexible Application.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811506415.0A CN109538169A (en) | 2018-12-10 | 2018-12-10 | A kind of simple oil field shaft mouth associated gas collection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811506415.0A CN109538169A (en) | 2018-12-10 | 2018-12-10 | A kind of simple oil field shaft mouth associated gas collection device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109538169A true CN109538169A (en) | 2019-03-29 |
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ID=65854428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811506415.0A Pending CN109538169A (en) | 2018-12-10 | 2018-12-10 | A kind of simple oil field shaft mouth associated gas collection device and method |
Country Status (1)
| Country | Link |
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| CN (1) | CN109538169A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112360988A (en) * | 2020-11-24 | 2021-02-12 | 成都正升能源技术开发有限公司 | Condensate valve for rapidly recovering oilfield associated gas |
-
2018
- 2018-12-10 CN CN201811506415.0A patent/CN109538169A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112360988A (en) * | 2020-11-24 | 2021-02-12 | 成都正升能源技术开发有限公司 | Condensate valve for rapidly recovering oilfield associated gas |
| CN112360988B (en) * | 2020-11-24 | 2022-05-17 | 成都正升能源技术开发有限公司 | Condensate valve for rapidly recovering oilfield associated gas |
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 257000 Shandong Province, Dongying city the Yellow River Road No. 721 senuo Victory Mansion Applicant after: Suno Technology Co., Ltd Address before: 257000 Shandong Province, Dongying city the Yellow River Road No. 721 senuo Victory Mansion Applicant before: Shengli Oilfield Sino Shengli Engineering Co., Ltd. |
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