CN104632165B - System for increasing yield of low-pressure well by using adjacent well high-pressure well - Google Patents
System for increasing yield of low-pressure well by using adjacent well high-pressure well Download PDFInfo
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- CN104632165B CN104632165B CN201410806467.5A CN201410806467A CN104632165B CN 104632165 B CN104632165 B CN 104632165B CN 201410806467 A CN201410806467 A CN 201410806467A CN 104632165 B CN104632165 B CN 104632165B
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
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Abstract
The invention belongs to the technical field of gas production in gas fields, and particularly relates to a system for increasing the yield of low-pressure gas produced by an adjacent well high-pressure well, which comprises a deslagging device and a supercharging device connected with an outlet of the deslagging device; the supercharging equipment comprises a compressed air hydraulic cylinder, a control system and an air circuit system, a left piston and a right piston are arranged in the compressed air hydraulic cylinder, a partition is arranged between the left piston and the right piston, the left piston and the right piston are connected with a piston rod through a piston rod penetrating through the partition, and the left piston, the right piston and the partition divide the compressed air hydraulic cylinder into four parts. The invention adopts the hydraulic drive type supercharging working principle, has high compression efficiency, reasonably utilizes the energy of the high-pressure gas well to increase the yield of the low-pressure gas well, and has low operation cost.
Description
Technical field
The invention belongs to gas field production gas technology field is and in particular to a kind of utilization offset well high-pressure well increases production low pressure well aerogenesis
System is it is adaptable to gas field low-pressure charging gas production.
Background technology
Soviet Union's Sulige gas field, during deflection type exploitation gas field, with the extraction of natural gas, strata pressure constantly declines, and causes gas
Field yield declines, mainly point three below development phase.First stage, the gas field development initial stage.Because strata pressure is high, well head stream
Dynamic pressure is more than distribution pressure, therefore well head flowing pressure need to be depressured to after distribution pressure Safety output again through throttling.This stage
Exploitation, gas well is generally taken and is determined throughput manner gas production, in order to keep the stable yields of gas well, while gas reservoir reduced pressure, takes
The measure being gradually increased aciculiform valve opening to reduce bottom hole flowing pressure carries out gas production.Second stage, well head flowing pressure is equal to
The successively decreasing the production phase of distribution pressure.Determine yield production latter stage, gas well proceeds to be determined the Development characteristics of well head pressure production phase and be
Gas well yield declines rapid, the full gas field entrance production decline stage, and decline rate is more and more faster.Phase III, low pressure abortion
The amount production phase.Determine well head pressure and produce latter stage, gas well yield very little.
Low pressure little yield gas well gas production is one of important technical problem of production field, and scene is taken and set up compressor station and adopt
Gas mode, reduces well head pressure, improves gas production, so that gas field is developed under higher gas producting rate and finish.Compressor station is invested
Height, technical sophistication, need conscientiously to carry out technical and economic proof, manual maintenance high cost, once machine breaks down can affect to give birth to
Produce, lead to outer displacement to decline.
Content of the invention
The purpose of the present invention is for meeting the needs that gas field scene low cost produces, the energy of effectively utilizes offset well high-pressure gas well
Amount, overcomes existing compressor boost gas-recovery station investment high, technical sophistication, and maintenance cost is high, once the bad process shadow that goes wrong
The problems such as ring yield.
For this reason, the invention provides a kind of utilization offset well high-pressure well increase production low pressure well aerogenesis system, including slag removal equipment,
The supercharging equipment being connected with slag removal equipment outlet；
Described supercharging equipment is made up of fluid cylinder of calming the anger, control system and air-channel system, is provided with left work in described fluid cylinder of calming the anger
Plug, right piston, are provided with barrier between described left piston and right piston, left and right piston is connected by the piston rod through barrier, left
Piston, right piston, barrier fluid cylinder of calming the anger is divided into four parts；
The left contact switch by single-chip microcomputer with located at fluid cylinder two ends of calming the anger for the described control system, right contact switch, single-chip microcomputer
For receiving the signal of left contact switch and the transmission of right contact switch, to control the direction of motion of liquid cylinder piston of calming the anger；
Described air-channel system carrys out gas pipeline by low pressure, high pressure carrys out gas pipeline, low pressure outlet line, high pressure outlet air pipeline, pressure
Airdraulic actuator left end pipeline and liquid right-hand member pipeline composition of calming the anger, described low pressure carrys out gas pipeline and low pressure outlet line passes through threeway phase
Even, two outlets of threeway carry out gas pipeline respectively with low pressure, fluid cylinder left end pipeline of calming the anger is connected, described low pressure outlet line and three
It is provided with the 3rd check valve between logical, calm the anger and be provided with the first valve between fluid cylinder left end pipeline and threeway, low pressure comes gas pipeline and three
It is provided with the second valve between logical；
Described high pressure is carried out gas pipeline and is connected with fluid cylinder bottom of calming the anger, and high pressure carrys out gas pipeline and calming the anger and is provided with simultaneously between fluid cylinder
Air inlet first check valve of row and air inlet second check valve, described air inlet first check valve and air inlet second check valve are respectively arranged on
Barrier both sides；
Described high pressure outlet air pipeline is connected with fluid cylinder bottom of calming the anger, and high pressure outlet air pipeline and calming the anger is provided with simultaneously between fluid cylinder
Aerofluxuss the 4th check valve of row and aerofluxuss the 5th check valve, described aerofluxuss the 4th check valve and aerofluxuss the 5th check valve are respectively arranged on
Barrier both sides；
Described liquid right-hand member pipeline of calming the anger is connected come gas pipeline and low pressure outlet line 17 with low pressure by threeway, pipeline, institute
State calm the anger liquid right-hand member pipeline and threeway and see and be provided with the 3rd valve, low pressure to be provided with the 4th valve, low pressure between gas pipeline and threeway
It is provided with the 6th check valve between outlet line and threeway.
Described slag removal equipment carrys out gas pipeline with low pressure, high pressure carrys out gas pipeline and is connected.
Described air inlet second check valve and aerofluxuss the 4th check valve are realized interlocking under Single-chip Controlling.
Described air inlet first check valve and aerofluxuss the 5th check valve are realized interlocking under Single-chip Controlling.
Described slag removal equipment is the filtering type CF-1100 scummer of oil recovery DN50.
The invention has the beneficial effects as follows：
（1）High-pressure gas well energy is rationally utilized to increase production low-pressure gas well, operating cost is cheap.
（2）Operation principle is pressurized using hydraulic-driven, compression efficiency is high.
（3）Equipment start and stop at any time, without the residual gas in emptying equipment when compared with mechanical commprssor, opening, shutting down
Body, reduces the loss of manual labor and gas.
（4）During equipment work, noise pollution is little.
It is described in further details below in conjunction with accompanying drawing.
Brief description
Fig. 1 is to increase production low pressure well aerogenesis technology process flow chart using offset well high-pressure well；
Fig. 2 is present configuration schematic diagram；
Fig. 3 is control system theory diagram.
Description of reference numerals：1st, air inlet first check valve；2nd, air inlet second check valve；3rd, left contact switch；4th, the first valve
Door；5th, the 3rd check valve；6th, piston rod；7th, aerofluxuss the 4th check valve；8th, aerofluxuss the 5th check valve；9th, calm the anger fluid cylinder；10th, right tactile
Point switch；11st, the second valve；12nd, the 3rd valve；13rd, the 6th check valve；14th, the 4th valve；15th, low pressure carrys out gas pipeline；16、
High pressure carrys out gas pipeline；17th, low pressure outlet line；18th, high pressure outlet air pipeline；19th, calm the anger fluid cylinder left end pipeline；20th, liquid of calming the anger is right
End pipe line；21st, left piston；22nd, right piston；23rd, barrier.
Specific embodiment
Embodiment 1：
For meeting the needs that gas field scene low cost produces, the energy of effectively utilizes offset well high-pressure gas well, overcome existing pressure
The investment of contracting machine pressure boost gas production station is high, technical sophistication, and maintenance cost is high, once the problems such as bad process that goes wrong affects yield.
For this reason, present embodiments provide a kind of utilization offset well high-pressure well volume increase low pressure well aerogenesis as shown in Figure 1, 2 is
System, exports, including slag removal equipment, with slag removal equipment, the supercharging equipment being connected；
Supercharging equipment is made up of calm the anger fluid cylinder 9, control system and air-channel system, is provided with left piston 21, the right side in fluid cylinder 9 of calming the anger
Piston 22, is provided with barrier 23, left and right piston 22 is by the piston rod through barrier 23 between described left piston 21 and right piston 22
6 connections, left piston 21, right piston 22, barrier 23 fluid cylinder 9 of calming the anger is divided into four parts；
The left contact switch 3 by single-chip microcomputer with located at fluid cylinder 9 two ends of calming the anger for the control system, right contact switch 10, single-chip microcomputer
For receiving the signal of left contact switch 3 and right contact switch 10 transmission, to control the direction of motion of fluid cylinder 9 piston of calming the anger；
Air-channel system carrys out gas pipeline 15 by low pressure, high pressure carrys out gas pipeline 16, low pressure outlet line 17, high pressure outlet air pipeline
18th, calm the anger fluid cylinder left end pipeline 19 and liquid right-hand member pipeline 20 of calming the anger forms, slag removal equipment is with low pressure carrys out gas pipeline 15, high pressure carrys out gas
Pipeline 16 connects.Low pressure is carried out gas pipeline 15 and is connected by threeway with low pressure outlet line 17, two of threeway outlets respectively with low
Pressure carrys out gas pipeline 15, fluid cylinder left end pipeline 19 of calming the anger is connected, and is provided with the 3rd unidirectional between described low pressure outlet line 17 and threeway
Valve 5, calms the anger and is provided with the first valve 4 between fluid cylinder left end pipeline 19 and threeway, and low pressure to be provided between gas pipeline 15 and threeway
Two valves 11；
High pressure is carried out gas pipeline 16 and is connected with fluid cylinder 9 bottom of calming the anger, and high pressure carrys out gas pipeline 16 and calming the anger and is provided between fluid cylinder 9
Air inlet the first check valve 1 arranged side by side and air inlet the second check valve 2, air inlet the first check valve 1 and air inlet the second check valve 2 set respectively
In barrier 23 both sides；
High pressure outlet air pipeline 18 is connected with fluid cylinder 9 bottom of calming the anger, and high pressure outlet air pipeline 18 and calming the anger is provided between fluid cylinder 9
Aerofluxuss the 4th check valve 7 arranged side by side and aerofluxuss the 5th check valve 8, aerofluxuss the 4th check valve 7 and aerofluxuss the 5th check valve 8 set respectively
In barrier 23 both sides；
Liquid right-hand member pipeline 20 of calming the anger is connected come gas pipeline 15 and low pressure outlet line 17 with low pressure by threeway, pipeline, pressure
Gas-liquid right-hand member pipeline 20 and threeway are shown in and are provided with the 3rd valve 12, low pressure to be provided with the 4th valve 14 between gas pipeline 15 and threeway,
It is provided with the 6th check valve 13 between low pressure outlet line 17 and threeway.
The present invention adopts hydraulic-driven principle, drives hydraulic pressure by the high-pressure gas well gas-liquid through slag removal equipment for dynamic medium
Cylinder inner carrier moves, and by the periodic flow direction changing high-pressure gas-liquid, controls and the piston with action pneumatic fluid cylinder 9 produces
Alternate reciprocating motion proceeding through the suction of low-pressure gas well gas-liquid and the extrusion of slag removal equipment, thus realizing to low pressure gas gas well gas
The supercharging of liquid and continuous intake and exhaust.
The work process of the present invention：As shown in figure 1, the raw material gas-liquid coming low-pressure gas well and high-pressure gas well is first carried out respectively
Except Slag treatment, then the high-pressure gas-liquid after slagging-off and low-pressure gas-liquid are divided different pipelines to access supercharging equipment, low-pressure gas-liquid relies on
The energy boost of high-pressure gas-liquid requires after pressure to gas pipeline network, accesses gas-liquid input pipe network, high-pressure gas-liquid is through blood pressure lowering simultaneously
After reach requirement pressure, also access discharge, wherein supercharging equipment is that gas-liquid is pressurized to desirable pressure from lower pressure, slagging-off
Device is mainly in order to remove the objectionable impurities such as the waste residue in gas-liquid.
As Fig. 2, supercharging equipment is calmed the anger the pressurization of fluid cylinder 9：Calm the anger fluid cylinder 9 right-hand member the 3rd valve 12 and the 4th valve 14
Open into gas-liquid, entering gas-liquid source is to carry out gas-liquid through the low-pressure gas well of scummer, and air inlet opened by the second check valve of air inlet simultaneously 2
Liquid, entering gas-liquid source is to carry out gas-liquid through the high-pressure gas well of scummer, and aerofluxuss the 5th check valve 8 is opened, calm the anger fluid cylinder 9 piston to
Left movement, the first valve 4 and the 3rd check valve 5 are opened, fluid cylinder 9 left end aerofluxuss of calming the anger, and fluid cylinder 9 air inlet first of at this moment calming the anger is unidirectional
Valve 1, aerofluxuss the 4th check valve 7, the 6th check valve 13, the second valve 11 Close All, when fluid cylinder 9 piston movement of calming the anger is to the left side
During end of travel, left electric shock switch sends signal, and Single-chip Controlling fluid cylinder 9 piston of calming the anger starts to commutate；Calm the anger fluid cylinder 9 piston to
Right motion, the first valve 4, the second valve 11 are opened, and cylinder left end enters gas-liquid, enter the low pressure gas that gas-liquid source is through scummer
Well carrys out gas-liquid, and aerofluxuss the 4th check valve 7 starts aerofluxuss liquid, and air inlet the first check valve 1 is opened into gas-liquid, enter gas-liquid source be through
The high-pressure gas well of scummer carrys out gas-liquid, promotes fluid cylinder 9 piston of calming the anger to move right, the gas-liquid of fluid cylinder 9 right-hand member of calming the anger is compressed, when
When gas-liquid in fluid cylinder 9 of calming the anger is compressed to certain pressure, the 3rd valve 12 and the 6th check valve 13 opens and outside aerofluxuss liquid arrives and collects
Gas pipeline, the 4th valve 14 and air inlet the second check valve 2, the 3rd check valve 5, aerofluxuss the 5th check valve 8 are closed, when calming the anger simultaneously
When fluid cylinder 9 piston movement is to the right end of travel, right electric shock switch sends signal, and Single-chip Controlling fluid cylinder 9 piston of calming the anger starts
Commutation, so moves back and forth, and realizes the continuous intake and exhaust of fluid cylinder 9 of calming the anger.
This example slag removal equipment is the filtering type CF-1100 scummer of oil recovery DN50, mainly useless in gas-liquid in order to remove
The objectionable impurities such as slag.
Embodiment 2：
On the basis of embodiment 1, as shown in figure 3, hydraulic cylinder is started working, a road air intake valve is controlled to open, with
One tunnel outlet valve is closed, and then low-pressure gas well and high-pressure gas well gas-liquid enter hydraulic cylinder, and now, high-pressure gas-liquid promotes piston
Motion, after piston encounters two ends contact switch, then controls this road air intake valve to close, same road outlet valve is opened, liquid
In air cylinder, gas-liquid exclusion piston commutation simultaneously motion, then controls two road air intake valves to open, same road outlet valve is closed,
Low-pressure gas well and high-pressure gas well gas-liquid enter hydraulic cylinder, equally after piston encounters two ends contact switch, then control this road
Air intake valve is closed, and same road outlet valve is opened, and gas-liquid exclusion piston commutation simultaneously motion in hydraulic cylinder, if desired for continuation
Supercharging, then repeat said process, otherwise closes system.Air inlet the second check valve 2 and aerofluxuss the 4th check valve 7 are in Single-chip Controlling
Lower realization interlocking, left contact switch 3 receives the signal that left piston 21 reaches end points, or right contact switch 10 receives right piston
The signal of 22 arrival end points, issues control system single-chip microcomputer process signal, and sending signal makes piston commutate, and simultaneously closes off a road and enters
Air valve, opens a road drain tap, and the different interlocking all the time of two valve states is that is to say, that pass through high pressure when high pressure carrys out gas
Carry out gas pipeline 16 and enter when calming the anger fluid cylinder 9, air inlet the second check valve 2 is opened, then be in air inlet the second check valve 2 barrier 23 with
Aerofluxuss the 4th check valve 7 of side must shut off under the control of single-chip microcomputer, and the first check valve of air inlet in the same manner 1 and aerofluxuss the 5th are single
Realize interlock function to valve 8 under Single-chip Controlling.
The part that the present embodiment does not specifically describe broadly falls into common knowledge and the known technology of the art, herein not
An another detailed description.
The only illustration to the present invention exemplified as above, does not constitute the restriction to protection scope of the present invention, all
It is that same or analogous design belongs within protection scope of the present invention with the present invention.
Claims (5)
1. a kind of utilization offset well high-pressure well increase production low pressure well aerogenesis system it is characterised in that：Set with slagging-off including slag removal equipment
The supercharging equipment that standby outlet is connected；
Described supercharging equipment is by fluid cylinder of calming the anger（9）, control system and air-channel system composition, described fluid cylinder of calming the anger（9）Inside it is provided with a left side
Piston（21）, right piston（22）, described left piston（21）And right piston（22）Between be provided with barrier（23）, left piston（21）, right
Piston（22）By through barrier（23）Piston rod（6）Connect, left piston（21）, right piston（22）, barrier（23）To calm the anger
Fluid cylinder（9）It is divided into four parts；
Described control system is by single-chip microcomputer with located at fluid cylinder of calming the anger（9）The left contact switch at two ends（3）, right contact switch（10）Group
Become, single-chip microcomputer is used for receiving left contact switch（3）With right contact switch（10）The signal sending, to control fluid cylinder of calming the anger（9）Live
The direction of motion of plug；
Described air-channel system carrys out gas pipeline by low pressure（15）, high pressure carry out gas pipeline（16）, low pressure outlet line（17）, high pressure outlet air
Pipeline（18）, fluid cylinder left end pipeline of calming the anger（19）With liquid right-hand member pipeline of calming the anger（20）Composition, described low pressure carrys out gas pipeline（15）With
Low pressure outlet line（17）It is connected by threeway, two outlets of threeway carry out gas pipeline with low pressure respectively（15）, fluid cylinder of calming the anger left
End pipe line（19）It is connected, described low pressure outlet line（17）It is provided with the 3rd check valve and threeway between（5）, fluid cylinder left end pipe of calming the anger
Line（19）It is provided with the first valve and threeway between（4）, low pressure carrys out gas pipeline（15）It is provided with the second valve and threeway between（11）；
Described high pressure carrys out gas pipeline（16）With fluid cylinder of calming the anger（9）Bottom is connected, and high pressure carrys out gas pipeline（16）With fluid cylinder of calming the anger（9）
Between be provided with air inlet first check valve arranged side by side（1）With air inlet second check valve（2）, described air inlet first check valve（1）With enter
Gas second check valve（2）It is respectively arranged on barrier（23）Both sides；
Described high pressure outlet air pipeline（18）With fluid cylinder of calming the anger（9）Bottom is connected, high pressure outlet air pipeline（18）With fluid cylinder of calming the anger（9）
Between be provided with aerofluxuss the 4th check valve arranged side by side（7）With aerofluxuss the 5th check valve（8）, described aerofluxuss the 4th check valve（7）And row
Gas the 5th check valve（8）It is respectively arranged on barrier（23）Both sides；
Described liquid right-hand member pipeline of calming the anger（20）By threeway, pipeline and low pressure come gas pipeline（15）With low pressure outlet line（17）Even
Connect, described liquid right-hand member pipeline of calming the anger（20）See with threeway and be provided with the 3rd valve（12）, low pressure carrys out gas pipeline（15）And threeway between
It is provided with the 4th valve（14）, low pressure outlet line（17）It is provided with the 6th check valve and threeway between（13）.
2. a kind of utilization offset well high-pressure well according to claim 1 increase production low pressure well aerogenesis system it is characterised in that：Institute
State slag removal equipment and carry out gas pipeline with low pressure（15）, high pressure carry out gas pipeline（16）Connect.
3. a kind of utilization offset well high-pressure well according to claim 1 increase production low pressure well aerogenesis system it is characterised in that：Institute
State air inlet second check valve（2）With aerofluxuss the 4th check valve（7）Interlocking is realized under Single-chip Controlling.
4. a kind of utilization offset well high-pressure well according to claim 1 increase production low pressure well aerogenesis system it is characterised in that：Institute
State air inlet first check valve（1）With aerofluxuss the 5th check valve（8）Interlocking is realized under Single-chip Controlling.
5. a kind of utilization offset well high-pressure well according to claim 1 increase production low pressure well aerogenesis system it is characterised in that：Institute
State the filtering type CF-1100 scummer that slag removal equipment is oil recovery DN50.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410806467.5A CN104632165B (en) | 2014-12-23 | 2014-12-23 | System for increasing yield of low-pressure well by using adjacent well high-pressure well |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410806467.5A CN104632165B (en) | 2014-12-23 | 2014-12-23 | System for increasing yield of low-pressure well by using adjacent well high-pressure well |
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| CN104632165B true CN104632165B (en) | 2017-02-22 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105507860B (en) * | 2016-01-20 | 2018-09-04 | 西安长庆科技工程有限责任公司 | A kind of skid-mounted gas field individual well constant entropy supercharging integrated device |
| CN108208908A (en) * | 2017-05-12 | 2018-06-29 | 山东中烟工业有限责任公司 | A system and method for improving the safe operation of an expansion wire impregnator |
| CN113775504A (en) * | 2021-11-09 | 2021-12-10 | 东营众志石油工程技术有限公司 | Intelligence associated gas supercharging device |
| CN117167658A (en) * | 2023-08-10 | 2023-12-05 | 中冶华天南京工程技术有限公司 | High-pressure and low-pressure gas mixing method and device |
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| CN87105140A (en) * | 1986-07-25 | 1988-03-02 | 鹿特丹船舶修造厂公司 | Free piston motor with hydraulic pressure or pneumatic gearing |
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