CN105604525A - Multi-stage plunger gas lift device and process for combined pipe column - Google Patents
Multi-stage plunger gas lift device and process for combined pipe column Download PDFInfo
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- CN105604525A CN105604525A CN201510941850.6A CN201510941850A CN105604525A CN 105604525 A CN105604525 A CN 105604525A CN 201510941850 A CN201510941850 A CN 201510941850A CN 105604525 A CN105604525 A CN 105604525A
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- oil pipe
- plunger
- guide shell
- well
- gas
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 230000003139 buffering effect Effects 0.000 claims abstract description 7
- 210000003128 head Anatomy 0.000 claims description 15
- 241000521257 Hydrops Species 0.000 claims description 11
- 206010030113 Oedema Diseases 0.000 claims description 11
- 238000012856 packing Methods 0.000 claims description 7
- 230000000737 periodic effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 238000005516 engineering process Methods 0.000 abstract description 9
- 230000002457 bidirectional effect Effects 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000005086 pumping Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 210000002445 nipple Anatomy 0.000 description 3
- NAXKFVIRJICPAO-LHNWDKRHSA-N [(1R,3S,4R,6R,7R,9S,10S,12R,13S,15S,16R,18S,19S,21S,22S,24S,25S,27S,28R,30R,31R,33S,34S,36R,37R,39R,40S,42R,44R,46S,48S,50R,52S,54S,56S)-46,48,50,52,54,56-hexakis(hydroxymethyl)-2,8,14,20,26,32,38,43,45,47,49,51,53,55-tetradecaoxa-5,11,17,23,29,35,41-heptathiapentadecacyclo[37.3.2.23,7.29,13.215,19.221,25.227,31.233,37.04,6.010,12.016,18.022,24.028,30.034,36.040,42]hexapentacontan-44-yl]methanol Chemical compound OC[C@H]1O[C@H]2O[C@H]3[C@H](CO)O[C@H](O[C@H]4[C@H](CO)O[C@H](O[C@@H]5[C@@H](CO)O[C@H](O[C@H]6[C@H](CO)O[C@H](O[C@H]7[C@H](CO)O[C@@H](O[C@H]8[C@H](CO)O[C@@H](O[C@@H]1[C@@H]1S[C@@H]21)[C@@H]1S[C@H]81)[C@H]1S[C@@H]71)[C@H]1S[C@H]61)[C@H]1S[C@@H]51)[C@H]1S[C@@H]41)[C@H]1S[C@H]31 NAXKFVIRJICPAO-LHNWDKRHSA-N 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000003855 balanced salt solution Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229940053083 eye stream Drugs 0.000 description 1
- 239000003672 gas field water Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- 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
- E21B43/121—Lifting well fluids
- E21B43/122—Gas lift
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a multistage plunger gas lifting device and a process for a combined pipe column, which comprises an oil pipe I, an oil pipe II, a plunger I, a plunger II, a bidirectional clamping buffer device, a well bottom buffer and a well head buffer, wherein the oil pipe II is communicated with the oil pipe I up and down, the bottom of the oil pipe I is provided with the well bottom buffer, the upper end of the oil pipe II is provided with the well head buffer, the bidirectional clamping buffer device is arranged between the oil pipe II and the oil pipe I, the plunger I moves up and down in the oil pipe I, the plunger II moves up and down in the oil pipe II, the two-way clamping buffer device has the advantages of simple process and low cost, has a two-way positioning function and a two-way buffering function, also has the performance of one-way flow of gas and liquid from bottom to top, prevents gas and liquid from flowing back, and solves the problems that the plunger drainage gas production technology can only be applied to a single-diameter oil pipe gas well, has limited adaptability and cannot meet the production requirement of a combined pipe column gas well.
Description
Technical field
The present invention relates to oil gas field oil recovery gas production research field, be specifically related to a kind of Multi-stage plunger gas for combined stringLift device and technique.
Background technology
Plunger lift technique is to utilize gas well self-energy that liquid is discharged to pit shaft, and plunger is as the mechanical boundary between gas-liquidFace, stops on gas and alters with liquid and fall after rise, reduces liquid slippage effect, increases intermittently lifting efficiency. Grind through tackling key problem for many yearsStudy carefully, long celebrating oil field independent research technique of plunger gas lift has obtained breakthrough, has realized the control to plunger operation, raw according to Oil/gas WellOccurrence condition is set the working system of Oil/gas Well automatically, has effectively brought into play the effect of liquid discharging gas producing; Realize the long-range real-time tune of gas wellGinseng and management, improved measure efficiency, uses manpower and material resources sparingly, and is specially adapted to that fine and close gas field region area is wide, well is many, people is fewExploitation present situation. Cost significantly reduces compared with foreign technology, has realized sizable application, has obtained good effect of increasing production, effectively solvesDaily output 3000m3Following gas well stable yields technical barrier. This technique is mainly applicable to have certain production capacity, water yield per day is less than25m3Gas well, become the major technique of long celebrating gas field water pumping gas production.
At present, long celebrating oil field has the well of implication more than 1000 to adopt combined string (Ф 88.9mm oil pipe and Ф 73.02mm oil pipeCombination), the water pumping gas production problem of such gas well also highlights gradually. In earlier stage, plunger water pumping gas production technology only can be applied to listOne caliber oil pipe gas well, adaptability is limited. Combined string gas well production problem is badly in need of solving.
Summary of the invention
The object of the invention is to overcome plunger water pumping gas production technology and only can be applied to single caliber oil pipe gas well, adaptability hasLimit, can not meet the problem that combined string gas well is produced.
For this reason, technical scheme of the present invention has been to provide a kind of Multi-stage plunger airlift unit and work for combined stringSkill, comprises oil pipe one, oil pipe two, plunger one, plunger two, two-way engaging buffer unit, shaft bottom buffer and well mouth buffer, instituteState oil pipe two and be communicated with up and down with oil pipe one, oil pipe one bottom is provided with shaft bottom buffer, and oil pipe two upper ends are provided with well head bufferingDevice, is provided with two-way engaging buffer unit between described oil pipe two and oil pipe one, described plunger one moves up and down in oil pipe one,Described plunger two moves up and down in oil pipe two; Described two-way engaging buffer unit be connected with in turn from top to bottom upper binding head,Upper connecting axle, guide shell one, fastener, guide shell two, lower connecting axle and lower union joint, the upper end of described fastener is connected inOn the outer wall of guide shell one bottom, the lower end of fastener is connected in the upper end of guide shell two, the outside suit of described guide shell twoThere is connecting axle.
On above-mentioned upper connecting axle, be set with successively upper spring and upper guide shell, on described lower connecting axle, be set with down and lead successivelyStream cylinder and lower spring.
The barrel upper end of above-mentioned upper guide shell and the barrel lower end of lower guide shell are all uniformly distributed two slotted eyes.
The symmetrical two flat spring plates of above-mentioned fastener the right and left, latch plate middle part inwall and lower end outer wall are provided withBoss.
The top of above-mentioned guide shell two is provided with jump ring, and the lower end of fastener is by jump ring bearing pin and jump ring locking.
Above-mentioned jump ring one end is that the circular other end is crotch shape.
Above-mentioned guide shell two tops are provided with ball seat, and in two of guide shells, top is provided with valve, in the time driving a well state, allIn your tube, buoyant gas is suspended in guide shell two tops, goes upward to after two-way engaging buffer unit at plunger one, produces one sectionTime, when the liquid that enters two-way engaging buffer unit top starts to fall after rise, valve falls after rise to ball seat.
On the outer wall of above-mentioned connecting axle lower end guide shell two, be fixed with packing element.
Between above-mentioned upper binding head and upper connecting axle, for being threaded, between lower union joint and lower connecting axle, be screw thread companyConnect.
The above-mentioned this Multi-stage plunger gaslift technique for combined string comprises the following steps realization:
1) at the interior launching trap bottom buffering device of pit shaft bottom oil pipe one, then throw in supporting plunger one in the above;
2) throw in two-way engaging buffer unit in oil pipe reducing position;
3), at the interior input plunger two of upper wellbore oil pipe two, well head is installed well mouth buffer;
4) after driving a well, the plunger two in upper wellbore oil pipe two goes upward to well head, and this plunger upper part hydrops is lifted to ground, wellPlunger one in cylinder bottom oil pipe one goes upward to oil pipe reducing position, and shaft bottom hydrops is lifted on two-way engaging buffer unitPortion, now, valve falls after rise to ball seat;
5) after closing well, the plunger two in upper wellbore oil pipe two falls to oil pipe reducing position, sinks gradually to hydrops bottom; WellPlunger one in cylinder bottom oil pipe one comes downwards to shaft bottom, sinks gradually to shaft bottom hydrops bottom;
6), according to the periodic duty of above switch well, finally realize the fortune of combined string Oil/gas Well Multi-stage plunger gas lift liquid drainage gas productionOK.
Beneficial effect of the present invention:
(1) this Multi-stage plunger airlift unit technique for combined string of the present invention is simple, and cost is lower, by two-way cardDetermine the two-way positioning function of buffer unit, ensure that plunger one is in the interior reciprocating motion of oil pipe one, plunger two is in the interior reciprocal fortune of oil pipe twoMoving, secondly two-way engaging buffer unit has bidirectional buffering function, reduces plunger two whereabouts impulsive forces and plunger one rising impactPower, two-way engaging buffer unit also has the function of gas-liquid unidirectional smooth circulation from bottom to top, prevents that gas-liquid from refluxing, and ensured liquidPhysical efficiency is lifted to ground smoothly, has solved plunger water pumping gas production technology and only can be applied to single caliber oil pipe gas well, and adaptability hasLimit, can not meet the problem that combined string gas well is produced.
(2) this Multi-stage plunger airlift unit for combined string provided by the invention delaying by upper spring lower springPunching effect, has reduced the impulsive force of oil pipe inner plunger.
(3) this Multi-stage plunger airlift unit for combined string provided by the invention is by the bullet in fastener lower endBoss is set on spring plank, when jump ring is opened during in the joint hoop gap by oil pipe two and diameter changing nipple, the spring of fastener lower endThe boss of plate flicks, and snaps in joint hoop gap, two-way engaging buffer unit is fixed on to the diameter changing nipple place of oil pipe, guarantees this dressPut and can not move up and down.
(4) this Multi-stage plunger airlift unit for combined string provided by the invention passes through jump ring bearing pin by fastenerWith jump ring locking, fastener is fixed, ensure that construction is smoothly.
(5) this Multi-stage plunger airlift unit for combined string provided by the invention is by the sealing of valve and ball seatEffect, prevents the phenomenon of revealing under act liquid, has ensured upwards to lift the reliability of liquid construction.
(6) this Multi-stage plunger airlift unit for combined string provided by the invention passes through at connecting axle lower end water conservancy diversionOn the outer wall of cylinder two, fix packing element, packing element plays the effect in gap between sealing oil pipe one and two-way engaging buffer unit, enters oneStep prevents an interior liquid backflow.
(7) this Multi-stage plunger airlift unit for combined string provided by the invention by upper binding head with on connectBetween spindle, use and be threaded, between lower union joint and lower connecting axle, use and be threaded, make to connect more between each partsFastening, ensure that construction is smoothly.
Below with reference to accompanying drawing, the present invention is described in further details.
Brief description of the drawings
Fig. 1 is the schematic diagram of the present invention for the Multi-stage plunger airlift unit of combined string;
Fig. 2 is the structural representation of two-way engaging buffer unit of the present invention.
Description of reference numerals: 1, upper binding head; 2, upper connecting axle; 3, upper spring; 4, upper guide shell; 5, guide shell one; 6,Locating ring; 7, fastener; 8, jump ring; 9, valve; 10, ball seat; 11, guide shell two; 12, connecting axle; 13, packing element; 14, lower water conservancy diversionCylinder; 15, lower connecting axle; 16, lower spring; 17, lower union joint; 18, oil pipe one; 19, oil pipe two; 20, plunger one; 21, plunger two;22, two-way engaging buffer unit; 23, shaft bottom buffer; 24, well mouth buffer.
Detailed description of the invention
Below with reference to specific embodiment, the present invention is described in further details.
Embodiment 1:
Only can be applied to single caliber oil pipe gas well in order to overcome plunger water pumping gas production technology, adaptability is limited, can not meet groupClose the problem that tubing string gas well is produced, the present embodiment provides a kind of Multi-stage plunger gaslift for combined string as shown in Figure 1Device, comprises oil pipe 1, oil pipe 2 19, plunger 1, plunger 2 21, two-way engaging buffer unit 22, shaft bottom buffer 23With well mouth buffer 24, described oil pipe 2 19 is communicated with up and down with oil pipe 1, and oil pipe one 18 bottoms are provided with shaft bottom buffer 23,Oil pipe 2 19 upper ends are provided with well mouth buffer 24, are provided with two-way engaging buffering dress between described oil pipe 2 19 and oil pipe 1Put 22, described plunger 1 moves up and down in oil pipe 1, and described plunger 2 21 moves up and down in oil pipe 2 19;
As shown in Figure 2, described two-way engaging buffer unit 22 is connected with from top to bottom upper binding head 1, upper connecting axle 2 in turn, leadsStream cylinder 1, fastener 7, guide shell 2 11, lower connecting axle 15 and lower union joint 17, the upper end of described fastener 7 is connected in leadsOn the outer wall of stream cylinder one 5 bottoms, the lower end of fastener 7 is connected in the upper end of guide shell 2 11, the outside of described guide shell 2 11Be set with connecting axle 12.
This Multi-stage plunger gaslift technique for combined string of the present invention comprises the following steps realization:
1) at the interior launching trap bottom buffering device 23 of pit shaft bottom oil pipe 1, then throw in supporting plunger 1 in the above;
2) throw in two-way engaging buffer unit 22 in oil pipe reducing position;
3), at the interior input plunger 2 21 of upper wellbore oil pipe 2 19, well head is installed well mouth buffer 24;
4) after driving a well, the plunger 2 21 in upper wellbore oil pipe 2 19 goes upward to well head, and this plunger upper part hydrops is lifted to groundFace, the plunger 1 in pit shaft bottom oil pipe 1 goes upward to oil pipe reducing position, shaft bottom hydrops is lifted to two-way engaging slowFlushing device 22 tops, now, valve 9 falls after rise to ball seat 10;
5) after closing well, the plunger 2 21 in upper wellbore oil pipe 2 19 falls to oil pipe reducing position, sinks gradually at the bottom of hydropsPortion; Plunger 1 in pit shaft bottom oil pipe 1 comes downwards to shaft bottom, sinks gradually to shaft bottom hydrops bottom;
6), according to the periodic duty of above switch well, finally realize the fortune of combined string Oil/gas Well Multi-stage plunger gas lift liquid drainage gas productionOK.
This Multi-stage plunger airlift unit technique for combined string of the present invention is simple, and cost is lower, by two-wayThe two-way positioning function of engaging buffer unit, ensures that plunger one is in the interior reciprocating motion of oil pipe one, and plunger two is interior back and forth at oil pipe twoMotion, secondly two-way engaging buffer unit has bidirectional buffering function, reduces plunger two whereabouts impulsive forces and plunger one rising punchingHit power, two-way engaging buffer unit also has the function of gas-liquid unidirectional smooth circulation from bottom to top, prevents that gas-liquid from refluxing, and ensuredLiquid can be lifted to ground smoothly, has solved plunger water pumping gas production technology and only can be applied to single caliber oil pipe gas well, adaptabilityLimited, can not meet the problem that combined string gas well is produced. Described shaft bottom buffer 23 and well mouth buffer 24 are existingKnown technology, is not just described in detail here.
Embodiment 2:
On the basis of embodiment 1, the present embodiment provides a kind of Multi-stage plunger gaslift for combined string as shown in Figure 2Device, is set with upper spring 3 and upper guide shell 4 on described upper connecting axle 2 successively, on described lower connecting axle 15, is set with down successivelyGuide shell 14 and lower spring 16, the cylinder-shaped sleeve that upper guide shell 4 and lower guide shell 14 are hollow, for water conservancy diversion liquid, upper bulletThe impulsive force that spring 3 falls for cushioning oil pipe 2 19 inner plunger 2 21, it is up that lower spring 16 cushions oil pipe one 18 inner plunger 1Impulsive force.
Further, the barrel upper end of described upper guide shell 4 and the barrel lower end of lower guide shell 14 are all uniformly distributed twoSlotted eye, when the plunger 1 in pit shaft bottom oil pipe 1 goes upward to oil pipe reducing position, is lifted to shaft bottom hydrops twoDuring to engaging buffer unit 22, liquid is by the slotted eye stream of upper guide shell 4 barrel upper ends and lower guide shell 14 barrel lower endsGo out.
Further, the symmetrical two flat spring plates of described fastener 7 the right and lefts, outside latch plate middle part inwall and lower endWall is provided with boss, and the top of described guide shell 2 11 is provided with jump ring 8, and the lower end of fastener 7 is by jump ring bearing pin and cardSpring 8 locks, and described jump ring 8 one end are that the circular other end is crotch shape. When two-way engaging buffer unit 22 is rendered to oil pipe 1And the diameter changing nipple place of playing connection function between oil pipe 2 19, two-way engaging buffer unit 22 the first half in oil pipe 2 19,The latter half, in oil pipe 1, is above carried this device, and jump ring 8 is beaten in the time of the joint hoop gap by oil pipe 2 19 and diameter changing nippleOpen, the boss of the latch plate of fastener 7 lower ends flicks, and snaps in joint hoop gap, and two-way fixed position, guarantees that this device can not go upLower movement, for fastener 7 is fixed, the lower end of fastener 7 locks by jump ring bearing pin and jump ring 8.
Embodiment 3:
On the basis of embodiment 2, the present embodiment provides a kind of Multi-stage plunger airlift unit for combined string, as Fig. 2Shown in, described guide shell 2 11 tops are provided with ball seat 10, and in 2 11 of guide shells, top is provided with valve 9, at the state of driving a wellTime, in valve 9 tubes, buoyant gas is suspended in guide shell 2 11 tops, goes upward to two-way engaging buffer unit 22 at plunger 1After, produce a period of time, when the liquid that enters two-way engaging buffer unit top starts to fall after rise, valve 9 falls after rise to ball seat 10. ?Plunger 1 goes upward to after two-way engaging buffer unit 22, produces a period of time, enters the liquid on two-way engaging buffer unit topWhile starting to fall after rise, valve 9 falls after rise to ball seat 10, plays sealing function, prevents liquid backflow.
On the outer wall of further described connecting axle 12 lower end guide shells 2 11, be fixed with packing element 13. When two-way engaging bufferingDevice is lowered in oil pipe one, and packing element 13 plays the effect in gap between sealing oil pipe one and two-way engaging buffer unit, furtherPrevent that liquid backflow is to oil pipe.
Further, between described upper binding head 1 and upper connecting axle 2 for being threaded, lower union joint 17 with under be connectedBetween axle 15 for being threaded. Being threaded, it is more fastening to make to connect between each parts, ensures that construction smoothly.
More than exemplifying is only to illustrate of the present invention, does not form the restriction to protection scope of the present invention, allBe all belong to protection scope of the present invention with the same or analogous design of the present invention within.
Claims (10)
1. for a Multi-stage plunger airlift unit for combined string, it is characterized in that: comprise oil pipe one (18), oil pipe two(19), plunger one (20), plunger two (21), two-way engaging buffer unit (22), shaft bottom buffer (23) and well mouth buffer(24), described oil pipe two (19) is communicated with up and down with oil pipe one (18), and oil pipe one (18) bottom is provided with shaft bottom buffer (23), oilPipe two (19) upper ends are provided with well mouth buffer (24), between described oil pipe two (19) and oil pipe one (18), are provided with two-way engagingBuffer unit (22), described plunger one (20) moves up and down in oil pipe one (18), and described plunger two (21) is at oil pipe two (19)Inside move up and down;
Described two-way engaging buffer unit (22) is connected with upper binding head (1), upper connecting axle (2), guide shell from top to bottom in turnOne (5), fastener (7), guide shell two (11), lower connecting axle (15) and lower union joint (17), the upper end of described fastener (7)Be connected on the outer wall of guide shell one (5) bottom, the lower end of fastener (7) is connected in the upper end of guide shell two (11), described in leadThe outer cover of stream cylinder two (11) is equipped with connecting axle (12).
2. the Multi-stage plunger airlift unit for combined string as claimed in claim 1, is characterized in that: described upper connecting axle(2) on, be set with successively upper spring (3) and upper guide shell (4), on described lower connecting axle (15), be set with successively lower guide shellAnd lower spring (16) (14).
3. the Multi-stage plunger airlift unit for combined string as claimed in claim 2, is characterized in that: described upper guide shell(4) the barrel lower end of barrel upper end and lower guide shell (14) is all uniformly distributed two slotted eyes.
4. the Multi-stage plunger airlift unit for combined string as claimed in claim 1, is characterized in that: described fastener(7) the symmetrical two flat spring plates of the right and left, latch plate middle part inwall and lower end outer wall are provided with boss.
5. the Multi-stage plunger airlift unit for combined string as claimed in claim 1, is characterized in that: described guide shell two(11) top is provided with jump ring (8), and the lower end of fastener (7) is by jump ring bearing pin and jump ring (8) locking.
6. the Multi-stage plunger airlift unit for combined string as claimed in claim 5, is characterized in that: described jump ring (8)One end is that the circular other end is crotch shape.
7. the Multi-stage plunger airlift unit for combined string as claimed in claim 1, is characterized in that: described guide shell two(11) top is provided with ball seat (10), and two (11) interior tops of guide shell are provided with valve (9), in the time driving a well state, and valve (9)In tube, buoyant gas is suspended in guide shell two (11) tops, go upward to after two-way engaging buffer unit (22) at plunger one (3),Produce a period of time, when the liquid that enters two-way engaging buffer unit top starts to fall after rise, valve (9) falls after rise to ball seat (10).
8. the Multi-stage plunger airlift unit for combined string as claimed in claim 1, is characterized in that: described connecting axle(12) on the outer wall of lower end guide shell two (11), be fixed with packing element (13).
9. the Multi-stage plunger airlift unit for combined string as claimed in claim 1, is characterized in that: described upper binding head(1) and between upper connecting axle (2) for being threaded, between lower union joint (17) and lower connecting axle (15) for being threaded.
10. for a Multi-stage plunger gaslift technique for combined string, it is characterized in that: comprise the following steps realization:
1) launching trap bottom buffering device (23) in pit shaft bottom oil pipe one (18), then throw in supporting plunger one (20) in the above;
2) throw in two-way engaging buffer unit (22) in oil pipe reducing position;
3) in upper wellbore oil pipe two (19), throw in plunger two (21), well head is installed well mouth buffer (24);
4), after driving a well, the plunger two (21) in upper wellbore oil pipe two (19) goes upward to well head, by this plunger upper part hydrops liftingTo ground, the plunger one (20) in pit shaft bottom oil pipe one (18) goes upward to oil pipe reducing position, shaft bottom hydrops is lifted to twoTo engaging buffer unit (22) top, now, valve (9) falls after rise to ball seat (10);
5) after closing well, the plunger two (21) in upper wellbore oil pipe two (19) falls to oil pipe reducing position, and sinking is to long-pending graduallyLiquid bottom; Plunger one (20) in pit shaft bottom oil pipe one (18) comes downwards to shaft bottom, sinks gradually to shaft bottom hydrops bottom;
6), according to the periodic duty of above switch well, finally realize the fortune of combined string Oil/gas Well Multi-stage plunger gas lift liquid drainage gas productionOK.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510941850.6A CN105604525A (en) | 2015-12-16 | 2015-12-16 | Multi-stage plunger gas lift device and process for combined pipe column |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510941850.6A CN105604525A (en) | 2015-12-16 | 2015-12-16 | Multi-stage plunger gas lift device and process for combined pipe column |
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| CN105604525A true CN105604525A (en) | 2016-05-25 |
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| CN201510941850.6A Pending CN105604525A (en) | 2015-12-16 | 2015-12-16 | Multi-stage plunger gas lift device and process for combined pipe column |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481320A (en) * | 2016-12-09 | 2017-03-08 | 东北石油大学 | One kind can realize gas well responding curve of well quantity-produced plunger gas producing device |
| CN107313750A (en) * | 2017-06-08 | 2017-11-03 | 中国石油集团渤海钻探工程有限公司 | A kind of plunger lift pumping equipment |
| CN107542434A (en) * | 2017-10-10 | 2018-01-05 | 中国石油天然气股份有限公司 | Plunger gas lift liquid drainage device for horizontal gas well and production method |
| CN107975355A (en) * | 2017-10-30 | 2018-05-01 | 中国石油天然气股份有限公司 | Foam and plunger gas lift combined drainage gas recovery method and device |
| CN109306856A (en) * | 2017-07-26 | 2019-02-05 | 中国石油天然气股份有限公司 | Multistage liquid carrying device and method |
| CN110593820A (en) * | 2019-08-07 | 2019-12-20 | 中国石油天然气股份有限公司 | Liquid drainage and gas production device and gas well liquid drainage method |
| CN111058803A (en) * | 2019-12-16 | 2020-04-24 | 中国石油天然气股份有限公司 | Plunger gas lift drainage gas recovery device for combined pipe column and drainage gas recovery method thereof |
| CN111101883A (en) * | 2019-12-16 | 2020-05-05 | 中国石油天然气股份有限公司 | Underground buffering seating device suitable for horizontal well plunger gas lift and working method thereof |
| CN111997571A (en) * | 2020-09-10 | 2020-11-27 | 贺信 | Multi-plunger cooperative gas lift liquid drainage technology |
| CN114382448A (en) * | 2022-01-24 | 2022-04-22 | 宝鸡文理学院 | Oil and gas downhole turbine power-assisted gas lift plunger drainage and gas production device |
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| CN104514522A (en) * | 2013-09-27 | 2015-04-15 | 中国石油天然气股份有限公司 | Low-pressure gas well vortex plunger water drainage gas production device |
| CN204311987U (en) * | 2014-11-17 | 2015-05-06 | 中国石油天然气股份有限公司 | Slip type downhole buffer of tubing plug |
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| CN106481320A (en) * | 2016-12-09 | 2017-03-08 | 东北石油大学 | One kind can realize gas well responding curve of well quantity-produced plunger gas producing device |
| CN107313750A (en) * | 2017-06-08 | 2017-11-03 | 中国石油集团渤海钻探工程有限公司 | A kind of plunger lift pumping equipment |
| CN107313750B (en) * | 2017-06-08 | 2023-08-11 | 中国石油天然气集团有限公司 | Plunger gas lift drain |
| CN109306856A (en) * | 2017-07-26 | 2019-02-05 | 中国石油天然气股份有限公司 | Multistage liquid carrying device and method |
| CN107542434A (en) * | 2017-10-10 | 2018-01-05 | 中国石油天然气股份有限公司 | Plunger gas lift liquid drainage device for horizontal gas well and production method |
| CN107975355A (en) * | 2017-10-30 | 2018-05-01 | 中国石油天然气股份有限公司 | Foam and plunger gas lift combined drainage gas recovery method and device |
| CN110593820A (en) * | 2019-08-07 | 2019-12-20 | 中国石油天然气股份有限公司 | Liquid drainage and gas production device and gas well liquid drainage method |
| CN111058803A (en) * | 2019-12-16 | 2020-04-24 | 中国石油天然气股份有限公司 | Plunger gas lift drainage gas recovery device for combined pipe column and drainage gas recovery method thereof |
| CN111101883A (en) * | 2019-12-16 | 2020-05-05 | 中国石油天然气股份有限公司 | Underground buffering seating device suitable for horizontal well plunger gas lift and working method thereof |
| CN111058803B (en) * | 2019-12-16 | 2023-08-22 | 中国石油天然气股份有限公司 | Plunger gas lift drainage gas production device for combined pipe column and drainage gas production method thereof |
| CN111997571A (en) * | 2020-09-10 | 2020-11-27 | 贺信 | Multi-plunger cooperative gas lift liquid drainage technology |
| CN114382448A (en) * | 2022-01-24 | 2022-04-22 | 宝鸡文理学院 | Oil and gas downhole turbine power-assisted gas lift plunger drainage and gas production device |
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Application publication date: 20160525 |