CN203702098U - Self-control type oil well casing gas recovery unit - Google Patents
Self-control type oil well casing gas recovery unit Download PDFInfo
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- CN203702098U CN203702098U CN201320875158.4U CN201320875158U CN203702098U CN 203702098 U CN203702098 U CN 203702098U CN 201320875158 U CN201320875158 U CN 201320875158U CN 203702098 U CN203702098 U CN 203702098U
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Abstract
The utility model discloses a self-control type oil well casing gas recovery unit, which comprises a piston cylinder I, a piston cylinder II, a cylinder barrel connector I, a cylinder barrel connector II, a piston component, an oil and gas mixing tube, a doser, an oil and water filter and a manifold joint, wherein the front end of the piston cylinder I is connected to an oil pipe valve, and the back end of the piston cylinder I is connected to the cylinder barrel connector I; a gas inlet check valve and an exhaust check valve are installed on the side wall of the cylinder barrel connector II; the front end of the oil and gas mixing tube is connected to the cylinder barrel connector I, and the back end of the oil and gas mixing tube is connected to the manifold joint; a by-pass pipe on the side wall of the oil and gas mixing tube is connected to the exhaust check valve; the manifold joint is connected with a pull-in pipeline; the doser is composed of a store pot and a diversion tube; the front end of the diversion tube is connected with a casing valve, and the back end of the diversion tube is connected with the oil and water filter through an uplink gas pipeline; the oil and water filter is connected with the gas inlet check valve. By applying the self-control type oil well casing gas recovery unit, the oil well production is improved, valuable and non-renewable natural gas resources can be recycled, and the purposes of safe and environment-friendly oil and gas production and development are achieved.
Description
Technical field
The utility model relates to oil extraction in oil field technical field, particularly casing gas recovering device, specifically a kind of " self-control type oil well casing ".
Background technology
In the production development of oil gas field, a lot of production zones have the geology block of a certain amount of hyposmosis oil-bearing structure, and because pressure is low, casing gas (natural gas) is difficult to be utilized and reclaim aborning.
Each elephant adopts the recovery form of the venting that builds the pressure conventionally, also can make to a certain extent part casing gas be recycled.
But this kind of practice exists a defect, be exactly that casing gas builds the pressure for a long time and directly affect the submergence of oil well and change, make the producing fluid level decline of oil well, reduce the normal exploitation actual effect of oil well.Therefore occurred that in some oil producing operation districts emptying and igniting burn phenomenon, not only cause atmosphere pollution, also wasted valuable and non-renewable casing gas (natural gas) resource has formed vicious circle simultaneously.
Therefore be badly in need of a kind of well casing gas recovery device of research and development, to solve the irretrievable technical barrier of oil well low pressure casing gas.
Utility model content
The purpose of this utility model is to provide a kind of self-control type oil well casing, solve the well casing gas difficult problem that causes well fluid level decline, gas lock, oil well pump to be found time that builds the pressure for a long time, improve oil well output, valuable and non-renewable natural gas resource can be recycled again simultaneously, realize the production of hydrocarbons exploitation object of safety, environmental protection.
For achieving the above object, the utility model is by the following technical solutions:
A kind of self-control type oil well casing, comprise piston rod No. one, No. two piston rods, a cylinder barrel joint, No. two cylinder barrel joints, piston component, gap bridge sealer, oil gas mixing tube, doser, oil and water filters and manifold joint, it is characterized in that: piston component is by a piston, No. two pistons, pull bar composition, No. one piston is arranged in a piston rod, No. two piston is arranged in No. two piston rods, the front end of a piston rod is connected with the tubing valve of production tree, the rear end of a piston rod is connected with a cylinder barrel joint, the rear end of a piston rod is provided with outage, outage communicates with the inner chamber of a cylinder barrel joint, the front end of No. two piston rods is connected with No. two cylinder barrel joints, the front end of No. two piston rods is provided with steam vent, steam vent communicates with the inner chamber of No. two cylinder barrel joints, the rear end of No. two piston rods is connected with the left port of manifold joint, the sidewall of No. two cylinder barrel joints is provided with air inlet port and exhaust opening, air inlet port and exhaust opening are communicated with the inner chamber of No. two cylinder barrel joints, on air inlet port and exhaust opening, be separately installed with breather check valve and exhaust check valve, between a cylinder barrel joint and No. two cylinder barrel joints, be connected by described gap bridge sealer, described pull bar passes from the centre bore of gap bridge sealer, the front end of pull bar is connected with a piston, the rear end of pull bar is connected with No. two pistons, described oil gas mixing tube is arc, the front end of oil gas mixing tube is communicated with the inner chamber of a cylinder barrel joint, the rear end of oil-gas mixer is connected with the top ports of manifold joint by non retern valve, on the sidewall of oil gas mixing tube, be provided with bypass pipe, bypass pipe is connected with described exhaust check valve, the bottom nozzle of manifold joint is connected with the pipeline that enters the station, described doser is by medicine storing pot, guide shell composition, guide shell is made up of a hollow cylinder, the front end of guide shell is connected with the sleeve valve of production tree, the rear end of guide shell is connected with up appendix, up appendix is connected with the entrance of oil and water filters, the exhaust opening of oil and water filters is connected with described breather check valve through wireway, the top of medicine storing pot is provided with air inlet pipe, the bottom of medicine storing pot is provided with drug row pipe, air inlet pipe is communicated with the front portion of guide shell, drug row pipe is communicated with the rear portion of guide shell.
Described gap bridge sealer is made up of cylindrical bloom, the two ends of gap bridge sealer are respectively arranged with left and right pillow block, left pillow block is connected with a cylinder barrel joint by external screw thread screw thread, right pillow block is connected with No. two cylinder barrel joints by external screw thread screw thread, the both sides of described gap bridge sealer centre bore are provided with step surface, on step surface, be separately installed with left and right oil sealing, left and right oil sealing is fixed by left and right gland respectively.
The top of described medicine storing pot is provided with and adds drug bucket, adds drug bucket and is communicated with the top of medicine storing pot by medicine-introducing pipe.
On the outer wall of described manifold joint, be provided with piston rod retaining mechanism, piston rod retaining mechanism is by lock, lock pin, spring composition, lock is screwed in by screw thread on the outer wall of manifold joint, lock pin is set in the shoulder hole in lock, the front end of lock pin is provided with major part, spring housing is on lock pin, the front end of spring is resisted against on the end face of lock pin major part, the rear end of spring is resisted against on the step surface of shoulder hole in lock, the rear end of lock pin is provided with through hole, draw ring is installed on through hole, lock pin be provided with in appearance fixture block, the front end of lock is provided with the groove for holding fixture block.
The rear end of described pull bar is provided with locking bar.
Owing to adopting technique scheme, the utility model has following positive beneficial effect:
This device has utilized the pressure of the upper and lower stroke of oil well to change, effectively solve the technical barrier that casing gas builds the pressure, make oil well low pressure casing gas be recycled utilization, pollution that the outer row of well casing gas brings to atmosphere and the injury to the mankind are stopped, accomplish oil well casing gas zero, realized " the production theory of low-carbon (LC), green, safety, environmental protection.
The operating principle of this device is that the piston left and right that utilizes the discharge opeing power of oil well and the back pressure pressure of the pipeline that enters the station to promote in two piston rods moves back and forth, realize the pump drainage function of oil well discharge opeing and casing gas, in the time that oil pumper moves to up stroke, the fluid of oil well is lifted to ground by oil well pump, enter in piston rod of this device, the piston that fluid promotes a piston rod proceeds to piston rod outage place No. one
The fluid of oil well is discharged in oil gas mixing tube, enters the oil transportation pipeline that enters the station.A piston of this device and No. two pistons are for serial connection interlock form, and in the time that a piston moves ahead, No. two piston is also moving ahead simultaneously, has completed the stroke of bleeding of casing gas when No. two piston moves ahead.
In the time that oil pumper goes to down stroke, now oil well pump is in feed liquor state, the pressure of oil pipe can decline thereupon, pressure fine motion occurs to be changed, now the pressure of oil pipe is lower than the pressure of the pipeline back pressure that enters the station, the utility model has utilized the pressure of the pipeline back pressure that enters the station cleverly, utilize the function that non retern valve can only one-way conduction, back pressure liquid is introduced to No. two piston rods, piston in No. two piston rods is pushed into the front portion of No. two piston rods, at this moment being drawn into No. two casing gas in piston rod at a upper stroke is discharged in oil gas mixing tube and is mixed with fluid by the exhaust check valve above No. two piston rods, in the time that oil pumper runs to up stroke again, casing gas in fluid and oil gas mixing tube in oil well is mixed together, be discharged into and enter the station in pipeline by non retern valve, concentrate and enter multi-purpose station recycling.
Oil well was the problem that solves crude oil thickness in the past, must alleviate wax and the dope in crude oil toward adding chemical agent in oil well casing, need in advance first by sleeve gas exhaust Pressure Drop to zero, use after this device, if also adopt traditional practice, by sleeve gas exhaust Pressure Drop to zero, this device wants short-term to stop transport, oil well casing atmospheric pressure has again rise phenomenon, for evading this problem, this device has designed doser with pressure, making in situation that liquid and casing gas be mixed together can dosing with pressure, utilize the principle of gravitational settling, liquid is descending, automatically enter in oil well casing, alleviate wax and dope in crude oil, and casing gas is up, do not interfere with each other, when dosing, do not need short-term to stop transport, ensure to produce operation continuously.
The air inlet port of this device is provided with oil and water filters, and oil and water filters can effectively be avoided the pollution of profit to breather check valve, thereby guarantees that breather check valve opens and closes flexibility and reliability, prevents and occurs Slow Close phenomenon.
The design of this device is ingenious, scientific and reasonable, simple in structure, safe and reliable, cost is low, high efficiency, effectively solved that oil well suppressing, gas lock, oil well pump sky are taken out, the problem of the outer pollution discharging atmosphere of natural gas, thoroughly solve the irretrievable technical barrier of oil well low pressure casing gas, accomplish the oil-gas field development production theory of low-carbon (LC), green, environmental protection, there is wide market prospects and comprehensive benefit, have higher market popularization value.
Brief description of the drawings
Fig. 1 is the use view of the utility model one embodiment.
Fig. 2 is the elevation of Fig. 1.
Fig. 3 is structural representation of the present utility model.
Fig. 4 is the partial sectional view of Fig. 3.
Fig. 5 is the partial sectional view of Fig. 4.
Fig. 6 is the partial sectional view of Fig. 5.
Fig. 7 is the elevation of Fig. 6.
The structural representation of the gap bridge sealer of Fig. 8.
Fig. 9 is the partial sectional view of Fig. 8.
Figure 10 is the exploded view of Fig. 8.
Figure 11 is the structural representation of piston component.
Figure 12 is the exploded view of Figure 11.
Figure 13 is the structural representation of doser.
Figure 14 is the rear elevation of Figure 13.
Figure 15 is the structural representation of oil and water filters.
Figure 16 is the exploded view of Figure 15.
Figure 17 is the sectional view of Figure 15.
Figure 18 is the structural representation of piston rod retaining mechanism.
Figure 19 is the partial sectional view of Figure 18.
Figure 20 is the exploded view of Figure 18.
Figure 21 is the lateral view of Fig. 6.
Figure 22 is the partial enlarged drawing of Figure 21.
Figure 23 is operating principle schematic diagram of the present utility model.
Figure 24 is operating principle schematic diagram of the present utility model.
Detailed description of the invention
Number in the figure
1 production tree 2 tubing valve 3 sleeve valves
4 non retern valves 5 pipeline 6 valves that enter the station
7 valve 8 valve 9 valves
No. 10 piston rod 11 flanges
13 outage 14 piston rod retaining mechanism 15 locks
16 lock pin 17 spring 18 fixture blocks
19 No. 20 2, fixture block piston rod 21 flanges
23 steam vent 24 through holes
25 screw thread 26 major part 27 draw rings
No. 30 cylinder barrel joints of 28 break slot 29 break slots
32 discharge opeing pressure meter 33 back pressure tables
34 casing gas pressure pressure table 35 medicine storing pot operating pressure tables
40 No. two cylinder barrel joint 41 air inlet port 42 exhaust openings
43 breather check valve 44 exhaust check valves
50 No. 51 1, piston component pistons
52 No. two piston 53 pull bar 54 locking bars
55 screw thread 56 screw thread 57 nuts
58 nut 59 lock rod head 60 gap bridge sealers
Right pillow block 63 centre bores of 61 left pillow block 62
The left gland of the right oil sealing 66 of 64 left oil sealing 65
67 right gland 68 screw 69 screws
70 oil gas mixing tube 71 bypass pipe 72 probe tubes
73 valve 80 doser 81 medicine storing pots
The up appendix of 82 guide shell 83 flange 84
85 add drug bucket 86 medicine-introducing pipe 87 air inlet pipe
88 stack 89 drug row pipe 90 oil and water filters
91 upper cover 92 housing 93 filter cores
94 exhaust opening 95 entrance 96 discharging tubes
97 valve 98 wireway 100 manifold joints
Please refer to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, the utility model is a kind of self-control type oil well casing, comprises piston rod 10 No. one, No. two piston rods 20, a cylinder barrel joint 30, No. two cylinder barrel joints 40, piston component 50, gap bridge sealer 60, oil gas mixing tube 70, doser 80, oil and water filters 90 and manifold joint 100, manifold joint 100 is multiple-pass joint, comprises top ports, bottom nozzle, left port, right output port, piston component 50 is by a piston 51, No. two pistons 52, pull bar 53 forms, No. one piston 51 is arranged in a piston rod 10, No. two piston 52 is arranged in No. two piston rods 20, the front end of a piston rod 10 is connected with the tubing valve 2 of production tree 1 by flange 11, the rear end of a piston rod 10 is connected with a cylinder barrel joint 30 by screw thread, the rear end of a piston rod 10 is provided with outage 13, outage 13 communicates with the inner chamber of a cylinder barrel joint 30, the front end of No. two piston rods 20 links together by screw thread and No. two cylinder barrel joints 40, the front end of No. two piston rods 20 is provided with steam vent 23, steam vent 23 communicates with the inner chamber of No. two cylinder barrel joints 40, the rear end of No. two piston rods 20 is connected with the left port of manifold joint 100 by flange 21, the sidewall of No. two cylinder barrel joints 40 is provided with air inlet port 41 and exhaust opening 42, air inlet port 41 and exhaust opening 42 are communicated with the inner chamber of No. two cylinder barrel joints 40, on air inlet port 41 and exhaust opening 42, be respectively arranged with breather check valve 43 and exhaust check valve 44, between a cylinder barrel joint 30 and No. two cylinder barrel joints 40, be connected by gap bridge sealer 60.
Please refer to Fig. 8, Fig. 9, Figure 10, gap bridge sealer 60 is made up of cylindrical bloom, the two ends of gap bridge sealer 60 are respectively arranged with a left side, right pillow block 61, 62, left pillow block 61 is connected with a cylinder barrel joint 30 by external screw thread screw thread, right pillow block 62 is connected with No. two cylinder barrel joints 40 by external screw thread screw thread, the inside of gap bridge sealer 60 is provided with centre bore 63, on the step surface of centre bore 63 both sides, be separately installed with a left side, right oil sealing 64, 65, left, right oil sealing 64, 65 respectively by a left side, right gland 66, 67 are encapsulated in the inside of gap bridge sealer 60, left, right gland 66, 67 respectively by screw 68, 69 with left, right pillow block 61, 62 is affixed.Pull bar 53 passes from the centre bore 63 of gap bridge sealer 60, the front end of pull bar 53 is connected with a piston 51, the rear end of pull bar 53 is connected with No. two pistons 52, please refer to Figure 11, Figure 12, before a piston 51, rear two ends are respectively arranged with screw thread 55, 56, on screw thread 55, be provided with nut 57, on screw thread 56, be provided with nut 58, nut 56 is fixed in piston 51 front end of pull bar 53, nut 57 is fixed in No. two pistons 52 rear end of pull bar 53, on the cylindrical of a piston 51, be provided with seal groove, sealing ring is housed on seal groove, on the cylindrical of No. two pistons 52, be provided with seal groove, sealing ring is housed on seal groove, in the rear end of pull bar 53, locking bar 54 is installed, locking bar 54 is screwed onto the rear end of pull bar 53 by internal thread screw thread, the end of locking bar 54 is provided with lock rod head 59.
Oil gas mixing tube 70 is arc, the front end of oil gas mixing tube 70 is communicated with the inner chamber of a cylinder barrel joint 30, the rear end of oil gas mixing tube 70 is connected with the top ports of manifold joint 100 by non retern valve 4, the bottom nozzle of manifold joint 100 is connected with the pipeline 5 that enters the station, and the right output port of manifold joint 100 is provided with back pressure table 33.On the sidewall of oil gas mixing tube 70, be provided with bypass pipe 71, bypass pipe 71 is connected with exhaust check valve 44, on the sidewall of oil gas mixing tube 70, be also provided with discharge opeing pressure meter 32 and probe tube 72, be provided with valve 73 on probe tube 72, discharge opeing pressure meter 32 is for showing discharge opeing pressure.
Please refer to Figure 13, Figure 14, doser 80 is made up of medicine storing pot 81, guide shell 82, guide shell 82 is made up of a hollow cylinder, the front end of guide shell 82 is connected with the sleeve valve 3 of production tree 1 by flange 83, the rear end of guide shell 82 is connected with up appendix 84, up appendix 84 is connected with the entrance 95 on oil and water filters 90 sidewalls, and the exhaust opening 94 at oil and water filters 90 tops is connected with breather check valve 43 through wireway 98, and casing gas pressure pressure table 34 is installed on guide shell 82.The top of medicine storing pot 81 is provided with and adds drug bucket 85, adds drug bucket 85 and is communicated with the top of medicine storing pot 81 by medicine-introducing pipe 86, and valve 6 is housed on medicine-introducing pipe 86, and the top of medicine storing pot 81 is provided with medicine storing pot operating pressure table 35.The top of medicine storing pot 81 is provided with air inlet pipe 87 and stack 88, valve 7 is housed in air inlet pipe 87, valve 8 is housed on stack 88, the bottom of medicine storing pot 81 is provided with drug row pipe 89, valve 9 is housed on drug row pipe 89, air inlet pipe 87 is communicated with the front portion of guide shell 82, and drug row pipe 89 is communicated with the rear portion of guide shell 82.Oil well was the problem that solves crude oil thickness in the past, must alleviate wax and the dope in crude oil toward adding chemical agent in oil well casing, need to shift to an earlier date first by sleeve gas exhaust Pressure Drop to zero, use after this device, if also adopt traditional practice, by sleeve gas exhaust Pressure Drop to zero, this device wants short-term to stop transport, and oil well casing atmospheric pressure has again rise phenomenon, for evading this problem, this device has designed doser with pressure
Making in situation that liquid and casing gas be mixed together can dosing with pressure, utilizes the principle of gravitational settling, and liquid is descending, automatically enters in oil well casing, alleviate wax and dope in crude oil, and casing gas is up,
Do not interfere with each other, when dosing, do not need short-term to stop transport, ensure to produce operation continuously.
Please refer to Figure 15, Figure 16, Figure 17, oil and water filters 90 is made up of end cap 91, housing 92, filter core 93, end cap 91 is screwed on housing 92 by screw thread, filter core 93 is arranged on housing 92 inside, and the top of end cap 91 is provided with exhaust opening 94, is provided with entrance 95 on the sidewall of housing 92, the bottom of housing 92 is provided with discharging tube 96, on discharging tube 96, be provided with valve 97, after Open valve 97, the dirt after discharging tube 96 can filter oil and water filters is discharged.Oil and water filters 90 can effectively be avoided the pollution of profit to breather check valve 43, thereby guarantees that breather check valve 43 opens and closes flexibility and reliability, prevents Slow Close phenomenon.
Please refer to Figure 18, Figure 19, Figure 20, Figure 21, Figure 22, piston rod retaining mechanism 14 is by lock 15, lock pin 16, spring 17 forms, lock 15 is screwed in by screw thread 25 on the outer wall of left port of manifold joint 100, lock pin 16 is set in the shoulder hole in lock 15, the front end of lock pin 16 is provided with major part 26, spring 17 is enclosed within on lock pin 16, the front end of spring 17 is resisted against on the end face of major part 26 of lock pin 16, the rear end of spring 17 is resisted against on the step surface of lock 15 interior shoulder holes, the rear end of lock pin 16 is provided with through hole 24, draw ring 27 is installed on through hole 24, the setting in appearance of lock pin 16 is provided with a pair of fixture block 18 symmetrically, 19, fixture block 18, 19 are made up of screw.Fixture block 18,19 is screwed on lock pin 16, the front end of lock 15 is provided with groove 28 for holding fixture block 18 and for holding the groove 29 of fixture block 19, when fixture block 18 embeds in groove 28, fixture block 19 is while embedding in groove 29, the major part 26 of lock pin 16 front ends stretches out, be stuck on the lock rod head 59 of locking bar 54, now lock rod head 59 is locked, and piston rod 53 can not move back and forth.Pull out draw ring 27, the elastic force effect that can make lock pin 16 overcome spring 17 is outwards moved, and the major part 26 of lock pin 16 is retracted, and discharges lock rod head 59.Rotation draw ring 27 90 degree, make fixture block 18 depart from groove 28, and fixture block 19 departs from groove 29, unclamp after draw ring 27, because fixture block 18 is not in groove 28, fixture block 19 is not in groove 29 again, the major part 26 of lock pin 16 cannot stretch out, and lock rod head 59 is not locked, and piston rod 53 can move back and forth.
The operating principle of this device is as follows, please refer to Figure 23, Figure 24, in the time that oil pumper moves to up stroke, the fluid of oil well is lifted to ground by oil well pump, enter in the cylinder barrel of a piston rod of this device by the tubing valve 2 of production tree 1, the piston 51 that fluid promotes in a piston rod 10 moves ahead, and proceeds to the outage place of a piston rod 10, the fluid of oil well is discharged in oil gas mixing tube 70, enters the oil transportation pipeline 5 that enters the station through non retern valve 4.
Piston 51 of this device and No. two pistons 52 are serial connection interlock form, in the time that a piston 51 moves ahead, No. two piston 52 is also moving ahead simultaneously, when No. two piston 52 moves ahead, complete the stroke of bleeding of casing gas, in the time that oil pumper goes to down stroke, now oil well pump is in feed liquor state, the pressure of oil pipe can decline thereupon, pressure fine motion occurs to be changed, now the pressure of oil pipe is lower than the pressure of pipeline 5 back pressure that enter the station, the ingenious pressure that has utilized pipeline 5 back pressure that enter the station of this device, use the function that non retern valve 4 can only one-way conduction, back pressure liquid is introduced in No. two piston rods 20, No. two pistons 52 in No. two piston rods 20 are pushed into the front portion of No. two piston rods, at this moment being drawn into No. two casing gas in piston rod 20 at a upper stroke is discharged in oil mixing with water pipe 70 and is mixed with casing gas by the exhaust check valve 44 above No. two piston rods 20, in the time that oil pumper runs to up stroke again, casing gas in fluid in oil well and oil gas mixing tube 70 is mixed together, be discharged into and enter the station in pipeline 5 through non retern valve 4, enter and concentrate multi-purpose station to recycle.
Claims (5)
1. a self-control type oil well casing, comprise piston rod No. one, No. two piston rods, a cylinder barrel joint, No. two cylinder barrel joints, piston component, gap bridge sealer, oil gas mixing tube, doser, oil and water filters and manifold joint, it is characterized in that: piston component is by a piston, No. two pistons, pull bar composition, No. one piston is arranged in a piston rod, No. two piston is arranged in No. two piston rods, the front end of a piston rod is connected with the tubing valve of production tree, the rear end of a piston rod is connected with a cylinder barrel joint, the rear end of a piston rod is provided with outage, outage communicates with the inner chamber of a cylinder barrel joint, the front end of No. two piston rods is connected with No. two cylinder barrel joints, the front end of No. two piston rods is provided with steam vent, steam vent communicates with the inner chamber of No. two cylinder barrel joints, the rear end of No. two piston rods is connected with the left port of manifold joint, the sidewall of No. two cylinder barrel joints is provided with air inlet port and exhaust opening, air inlet port and exhaust opening are communicated with the inner chamber of No. two cylinder barrel joints, on air inlet port and exhaust opening, be separately installed with breather check valve and exhaust check valve, between a cylinder barrel joint and No. two cylinder barrel joints, be connected by described gap bridge sealer, described pull bar passes from the centre bore of gap bridge sealer, the front end of pull bar is connected with a piston, the rear end of pull bar is connected with No. two pistons, oil gas mixing tube is arc, the front end of oil gas mixing tube is communicated with the inner chamber of a cylinder barrel joint, the rear end of oil-gas mixer is connected with the top ports of manifold joint by non retern valve, on the sidewall of oil gas mixing tube, be provided with bypass pipe, bypass pipe is connected with described exhaust check valve, the bottom nozzle of manifold joint is connected with the pipeline that enters the station, described doser is by medicine storing pot, guide shell composition, guide shell is made up of a hollow cylinder, the front end of guide shell is connected with the sleeve valve of production tree, the rear end of guide shell is connected with up appendix, up appendix is connected with the entrance of oil and water filters, the exhaust opening of oil and water filters is connected with described breather check valve through wireway, the top of medicine storing pot is provided with air inlet pipe, the bottom of medicine storing pot is provided with drug row pipe, air inlet pipe is communicated with the front portion of guide shell, drug row pipe is communicated with the rear portion of guide shell.
2. a kind of self-control type oil well casing as claimed in claim 1, it is characterized in that: described gap bridge sealer is made up of cylindrical bloom, the two ends of gap bridge sealer are respectively arranged with left and right pillow block, left pillow block is connected with a cylinder barrel joint by external screw thread screw thread, right pillow block is connected with No. two cylinder barrel joints by external screw thread screw thread, the both sides of described gap bridge sealer centre bore are provided with step surface, on step surface, be separately installed with left and right oil sealing, left and right oil sealing is fixed by left and right gland respectively.
3. a kind of self-control type oil well casing as claimed in claim 1, is characterized in that: the top of described medicine storing pot is provided with and adds drug bucket, adds drug bucket and is communicated with the top of medicine storing pot by medicine-introducing pipe.
4. a kind of self-control type oil well casing as claimed in claim 1, it is characterized in that: on the outer wall of described manifold joint, be provided with piston rod retaining mechanism, piston rod retaining mechanism is by lock, lock pin, spring composition, lock is screwed in by screw thread on the outer wall of manifold joint, lock pin is set in the shoulder hole in lock, the front end of lock pin is provided with major part, spring housing is on lock pin, the front end of spring is resisted against on the end face of lock pin major part, the rear end of spring is resisted against on the step surface of shoulder hole in lock, the rear end of lock pin is provided with through hole, draw ring is installed on through hole, lock pin be provided with in appearance fixture block, the front end of lock is provided with the groove for holding fixture block.
5. a kind of self-control type oil well casing as claimed in claim 1, is characterized in that: the rear end of described pull bar is provided with locking bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320875158.4U CN203702098U (en) | 2013-12-27 | 2013-12-27 | Self-control type oil well casing gas recovery unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320875158.4U CN203702098U (en) | 2013-12-27 | 2013-12-27 | Self-control type oil well casing gas recovery unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203702098U true CN203702098U (en) | 2014-07-09 |
Family
ID=51052554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320875158.4U Expired - Fee Related CN203702098U (en) | 2013-12-27 | 2013-12-27 | Self-control type oil well casing gas recovery unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203702098U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074494A (en) * | 2014-07-16 | 2014-10-01 | 檀长江 | Combined-type oil well casing gas recovery device |
| CN108825172A (en) * | 2018-08-29 | 2018-11-16 | 蚌埠市新达压缩机制造有限公司 | Unpowered casing gas recovering device |
| CN108825173A (en) * | 2018-08-29 | 2018-11-16 | 蚌埠市新达压缩机制造有限公司 | Unpowered casing gas recovery structure |
| CN114592830A (en) * | 2022-03-18 | 2022-06-07 | 中国石油化工股份有限公司 | Intelligent sleeve gas recovery device |
-
2013
- 2013-12-27 CN CN201320875158.4U patent/CN203702098U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074494A (en) * | 2014-07-16 | 2014-10-01 | 檀长江 | Combined-type oil well casing gas recovery device |
| CN104074494B (en) * | 2014-07-16 | 2016-06-22 | 檀长江 | Combination type well casing gas recovery device |
| CN108825172A (en) * | 2018-08-29 | 2018-11-16 | 蚌埠市新达压缩机制造有限公司 | Unpowered casing gas recovering device |
| CN108825173A (en) * | 2018-08-29 | 2018-11-16 | 蚌埠市新达压缩机制造有限公司 | Unpowered casing gas recovery structure |
| CN114592830A (en) * | 2022-03-18 | 2022-06-07 | 中国石油化工股份有限公司 | Intelligent sleeve gas recovery device |
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