CN103306641B - Natural gas is handled up and gaslift production integration tubing string - Google Patents
Natural gas is handled up and gaslift production integration tubing string Download PDFInfo
- Publication number
- CN103306641B CN103306641B CN201210062050.3A CN201210062050A CN103306641B CN 103306641 B CN103306641 B CN 103306641B CN 201210062050 A CN201210062050 A CN 201210062050A CN 103306641 B CN103306641 B CN 103306641B
- Authority
- CN
- China
- Prior art keywords
- gas
- oil
- natural gas
- tubing string
- oil pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention discloses a kind of natural gas to handle up and gaslift production integration tubing string, be development requires for meeting heavy crude reservoir and design, its mainly comprise pass through oil pipe and connect fixed high-pressure gas-lift working barrel, pump seat, bow spring centralizer, sealing intubate and permanent packer etc., also comprise the pull bar of composition rod string, mix rare threeway, mix rare valve and plunger etc.The present invention achieves that natural gas is handled up innovatively, sucker rod pump is produced and the switching of gas-lift production three functions, achieves heavy oil wells hollow stem and mixes rare function.Can sharing a set of because gaslift ground supercharging equipment and high-pressure gas injection pipeline and natural gas are handled up, therefore, without the need to building gaslift lifting ground injecting gas system and oil-gas gathering and transportation system again, shortening ground installation and pipeline network construction time.Gas-lift production technology is applied to viscous crude by this tubing string innovatively, solves thin oil inadequate resource and cannot realize the problem of mixing light oil on pump.Operation and production are integrated in one by tubing string of the present invention, can subtract down-hole string and remove number of times, simplify flow chart, reduce costs, and shorten and account for the product time.
Description
Technical field
The present invention relates to a kind of natural gas to handle up and gaslift production integration tubing string, belong to Development of Viscous Crude Oil technical field.
Background technology
Along with World Economics increases fast, the demand of oil is also increased rapidly, in conventional oil resource situation less and less, the viscous crude resource accounting for Global Oil resource 70% will be developed, according to Cambridge energy research association prediction, the annual production of viscous crude in the time of 25 years from now on, by with annual 150% to 300% speed increase, therefore, the exploitation of viscous crude resource becomes the important strategy that the energy is taken over.
Current natural gas mining type of handling up is one of major way of heavy crude heat extraction, effectively can improve heavy oil production, but there is certain production cycle.First, along with the exploitation of heavy crude reservoir, heavy oil wells can enter middle High water cut mining phase, and natural gas production cycle of handling up shortens, and effect of increasing production is deteriorated; Secondly handle up in the production cycle in heavy oil wells, along with the production of oil well, output can reduce gradually, when production decline is to limiting value, needs to carry out second time and handles up or directly turn and take out.Therefore, at present, the normal production with sucker rod pump of natural gas throughput operation combines, and solution natural gas production cycle of handling up terminates rear heavy oil wells and takes over problem, but for high viscosity heavy oil wells, still directly cannot apply sucker rod pump and carry out turning pumping product.Rare technology mixed by for this reason supporting pump, by hollow stem, thin oil is injected in oil pipe, reduce viscosity of thickened oil, realize natural gas handle up after sucker rod pump turn the object of taking out lifting viscous crude.
Now due to the continuous minimizing of global thin oil resource, sucker rod pump is limited gradually by the mixing light oil mode of production.Therefore, in the urgent need to a kind of viscous crude completion tubular column discharging thin oil resource.
Summary of the invention
A kind of natural gas is the object of the present invention is to provide to handle up and gaslift production integration tubing string, it not only can be used for viscous crude natural gas throughput operation, also can meet well of handling up carries out sucker rod pump production or gas-lift production simultaneously, can one-trip string realizes that natural gas is handled up, sucker rod pump produces and the switching of gas-lift production three functions, string matching mixes rare system simultaneously, and what realize heavy oil wells mixes rare function.
Concrete technology contents of the present invention is as follows:
Natural gas is handled up and gaslift production integration tubing string is located in sleeve pipe, it passes through oil pipe and connects one or more levels fixed high-pressure gas-lift working barrel equal with pipe aperture successively, be provided with gas lift valve outside fixed high-pressure gas-lift working barrel, between each fixed high-pressure gas-lift working barrel, be all connected with oil pipe.Pump seat is connected by oil pipe in final stage fixed high-pressure gas-lift working barrel lower end, pump seat lower end connects bow spring centralizer by oil pipe, bow spring centralizer lower end directly connects sealing intubate, sealing intubate lower end directly connects permanent packer, permanent packer lower end directly connects bow spring formula centralizer, and bow spring formula centralizer lower end connects horn mouth by oil pipe.The position of permanent packer is above oil reservoirs.
To handle up with natural gas and the rod string of gaslift production integration string matching is a built spar, its from top to bottom by pull bar, mix rare threeway, polished rod, hollow stem, mix rare valve, solid hopkinson bar, weighted lever and plunger and be connected in sequence, the rare valve of mixing as the rare point of lifting thickened oil is ball-and-seat.
Tubing string of the present invention possesses following function:
1) fixed high-pressure gas-lift working barrel: for gas lift valve provides working material.Gas lift valve is arranged on outside fixed high-pressure gas-lift working barrel, can ensure fixed high-pressure gas-lift working barrel and oil pipe latus rectum, realizes the object of sucker rod pump by seating nipple.
2) gas lift valve: be fixed gas lift valve, is that natural gas is handled up and the core tool of gaslift production integration tubing string lift-gas injection, controls and off-load, reach lifting wellbore fluids object for gas-lift production gas injection rate.
3) sucker rod pump: be that well of handling up turns the down-hole corollary equipment taken out, assembles complete by pump seat and plunger.Its operating principle is: plunger is under the drive that pumps of sucker rod, and complete the up-down stroke of sucker rod pump, in upstroke process, rod string moves upward with plunger, is the process sucking liquid, well head discharge liquid in pump; In down stroke process, rod string moves downward with plunger, is the process of pump to discharge opeing in oil pipe.In up-down stroke, the bearing load reducing rod string is the depth of setting of restriction sucker rod pump and the key factor of the wider application of its oil production method of restriction.This invention rod string adopts compound tube, can reduce sucker rod pump load, can meet rod string requirement of strength, can also realize hollow stem simultaneously and mix rare, and rare the helping of mixing being more suitable for viscous crude while solving reduction loading problem is taken out.
4) permanent packer: packing effect is played to oil jacket annular space.When first can avoid natural gas throughput operation, oil pipe inner high voltage gas enters oil jacket annular space by horn mouth, plays a protective role to sleeve pipe; Secondly when can avoid gas-lift production, oil jacket annular space gases at high pressure enter oil pipe by horn mouth, to improve gaslift lifting efficiency; Gaslift gases at high pressure again can be avoided to directly act on reservoir, reservoir is played a protective role.
5) intubate is sealed: the kit being permanent packer, lower tubular column in connection, for locking and seal pack device.
6) bend spring centralizer: bow spring centralizer and sealing intubate with the use of time, be connected to sealing intubate upper end, play the effect of righting sealing intubate, make sealing intubate not by Well Deflection Influence, insert in permanent packer smoothly; Bow spring hold up centralizer and permanent packer with the use of time, be connected to permanent packer lower end, play the effect of righting permanent packer, when avoiding packer to go into the well and casing wall directly collide or rub, meanwhile, ensure that sealing intubate is inserted in permanent packer smoothly.
7) horn mouth: be positioned at tubing string is bottom the end mark of tubing string.
The invention has the advantages that can realize that natural gas is handled up innovatively, sucker rod pump is produced, the switching of gas-lift production three functions, and realize heavy oil wells hollow stem and mix rare function.When thin oil resource is sufficient or natural gas supply is not enough, well of handling up can directly turn to be drawn into go to be produced; When natural gas is in liberal supply or thin oil shortage of resources time, natural gas well of handling up directly turns gaslift and produces.Can sharing a set of because gaslift ground supercharging equipment and high-pressure gas injection pipeline and natural gas are handled up, therefore, without the need to building gaslift lifting ground injecting gas system and oil-gas gathering and transportation system again, shortening ground installation and pipeline network construction time.The successful development of this tubing string, is applied to viscous crude by gas-lift production Technique Popularizing innovatively, solves thin oil inadequate resource and cannot realize the problem of mixing light oil on pump.Because operation and production are integrated in one by this tubing string, therefore, down-hole string can be reduced and remove number of times, simplify flow chart, reduce costs, shorten and account for the product time.
Accompanying drawing explanation
Fig. 1 is for handle up and gaslift production integration tubular column structure schematic diagram for natural gas.
Fig. 2 handles up for natural gas and the permanent packer setting pipe rod structure schematic diagram of gaslift production integration tubing string.
Fig. 3 is sucker-rod pumping roofbolt schematic diagram.
Detailed description of the invention
Embodiment:
Further illustrate referring to figs. 1 through to inventive embodiment:
Natural gas is handled up and gaslift production integration tubing string is located in sleeve pipe 9, it connects one or more levels fixed high-pressure gas-lift working barrel 2 equal with oil pipe 1 internal diameter from top to bottom successively, fixed high-pressure gas-lift working barrel 2 peripheral hardware gas lift valve 3, is all connected with oil pipe 1 between each fixed high-pressure gas-lift working barrel 2.Pump seat 4 is connected by oil pipe 1 in final stage fixed high-pressure gas-lift working barrel 2 lower end, pump seat 4 lower end connects bow spring centralizer 5 by oil pipe 1, bow spring centralizer 5 lower end directly connects sealing intubate 6, sealing intubate 6 lower end directly connects permanent packer 7, permanent packer 7 lower end directly connects bow spring formula centralizer 5, and bow spring formula centralizer 5 lower end connects horn mouth 8 by oil pipe 1.About 50 meters of above oil reservoirs 10, position of permanent packer 7.
Fixed high-pressure gas-lift working barrel 2 adopts special substance, special button-type, monolithic construction to process, internal pressure strength 105MPa, and hermetic seal ability reaches 55MPa; The operating pressure of the gas lift valve 3 matched with fixed high-pressure gas-lift working barrel 2 can reach 55MPa, and hermetic seal ability reaches 55MPa; Other kits of tubing string all adopt hermetic seal button-type, special substance processes.
Natural gas handles up and the setting of gaslift production integration tubing string packer, Completion Operations are as follows:
Permanent packer 7 of the present invention adopts tubing string twice to carry out completion.
First time completion tubular column as shown in Figure 2, for setting tubing string, this tubing string is located in sleeve pipe 9, bow spring centralizer 5 is connected by oil pipe 1, bow spring centralizer 5 lower end directly connects hydraulic setting tool 11, hydraulic setting tool 11 lower end connects permanent packer 7, and permanent packer 7 lower end directly connects bow spring formula centralizer 5, and bow spring formula centralizer 5 connects horn mouth 8 by oil pipe 1.The position of permanent packer 7 is about 50 meters of on the top of oil reservoirs 10.
After this sets tubing string G.I.H design attitude, set permanent packer 7 from oil pipe 1 pitching, realize the effect of cartridge Seal Oil cover annular space.From well, trip out hydraulic setting tool 11 and top tubing string thereof, carry out second time completion.
Second time completion tubular column as shown in Figure 1, for natural gas of the present invention is handled up and gaslift production integration completion tubular column.By sealing intubate 6 and top tubing string lower going-into-well in after, sealing intubate 6 is inserted in permanent packer 7, its hermetically-sealed construction can runner between the inner and sealing intubate 6 of effective sealing permanent packer 7, and anti-fluid flows out, and realizes the object of packing oil jacket annular space.
As shown in Figure 3, to handle up with natural gas and the rod string of gaslift production integration string matching is a built spar, its from top to bottom by pull bar 12, mix rare threeway 13, polished rod 14, hollow stem 15, mix rare valve 16, solid hopkinson bar 17, weighted lever 18 and plunger 19 and be connected in sequence.Mixing rare valve 16 is ball-and-seats, and be the rare point of lifting thickened oil, thin oil enters polished rod 14 by mixing rare threeway 13, then enters hollow stem 15, entering oil pipe 1 inside, mutually mixing, to reduce viscosity of thickened oil with viscous crude by mixing rare valve 16.
Claims (1)
1. natural gas is handled up and a gaslift production integration tubing string, it is characterized in that:
This tubing string is located in sleeve pipe (9), it passes through oil pipe (1) and connects one or more levels fixed high-pressure gas-lift working barrel (2) equal with oil pipe (1) internal diameter successively, fixed high-pressure gas-lift working barrel (2) peripheral hardware gas lift valve (3), is all connected with oil pipe (1) between each fixed high-pressure gas-lift working barrel (2); Pump seat (4) is connected by oil pipe (1) in final stage fixed high-pressure gas-lift working barrel (2) lower end, pump seat (4) lower end connects bow spring centralizer (5) by oil pipe (1), bow spring centralizer (5) lower end directly connects sealing intubate (6), sealing intubate (6) lower end directly connects permanent packer (7), permanent packer (7) lower end directly connects bow spring centralizer (5), and bow spring centralizer (5) lower end connects horn mouth (8) by oil pipe (1); The position of permanent packer (7) is in the top of oil reservoirs (10);
To handle up with natural gas and the rod string of gaslift production integration string matching is a built spar, its from top to bottom by pull bar (12), mix rare threeway (13), polished rod (14), hollow stem (15), mix rare valve (16), solid hopkinson bar (17), weighted lever (18) and plunger (19) and be connected in sequence, the rare valve (16) of mixing as the rare point of lifting thickened oil is ball-and-seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210062050.3A CN103306641B (en) | 2012-03-09 | 2012-03-09 | Natural gas is handled up and gaslift production integration tubing string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210062050.3A CN103306641B (en) | 2012-03-09 | 2012-03-09 | Natural gas is handled up and gaslift production integration tubing string |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103306641A CN103306641A (en) | 2013-09-18 |
| CN103306641B true CN103306641B (en) | 2015-10-28 |
Family
ID=49132317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210062050.3A Active CN103306641B (en) | 2012-03-09 | 2012-03-09 | Natural gas is handled up and gaslift production integration tubing string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103306641B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812510A (en) * | 2015-12-01 | 2017-06-09 | 中国石油天然气股份有限公司 | Tubing string and completion method |
| CN110359875A (en) * | 2018-03-26 | 2019-10-22 | 中国石油天然气股份有限公司 | Extend airlift unit and method |
| CN114562241A (en) * | 2022-03-04 | 2022-05-31 | 中海石油(中国)有限公司 | Bypass continuous pipe gas injection gas lift pipe column system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4454918A (en) * | 1982-08-19 | 1984-06-19 | Shell Oil Company | Thermally stimulating mechanically-lifted well production |
| CN1966933A (en) * | 2005-11-17 | 2007-05-23 | 罗阳俊 | Recovery and gathering-transferring technology for thick oil |
| CN101709637A (en) * | 2009-11-17 | 2010-05-19 | 中国海洋石油总公司 | Air lifting device for thermal recovery |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8397811B2 (en) * | 2010-01-06 | 2013-03-19 | Baker Hughes Incorporated | Gas boost pump and crossover in inverted shroud |
-
2012
- 2012-03-09 CN CN201210062050.3A patent/CN103306641B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4454918A (en) * | 1982-08-19 | 1984-06-19 | Shell Oil Company | Thermally stimulating mechanically-lifted well production |
| CN1966933A (en) * | 2005-11-17 | 2007-05-23 | 罗阳俊 | Recovery and gathering-transferring technology for thick oil |
| CN101709637A (en) * | 2009-11-17 | 2010-05-19 | 中国海洋石油总公司 | Air lifting device for thermal recovery |
Non-Patent Citations (1)
| Title |
|---|
| 压裂气举快速返排一趟管柱技术;王振松等;《吐哈油气》;20071231;第12卷(第4期);第364-366页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103306641A (en) | 2013-09-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20180320492A1 (en) | Device and method for water drainage and gas production by pressure control and gas lift | |
| CN104948141B (en) | A kind of same well production-injection device | |
| CN201705249U (en) | Continuous jet blockage-removing string for horizontal wells | |
| CN103306641B (en) | Natural gas is handled up and gaslift production integration tubing string | |
| CN205936557U (en) | Water injection oil production pipe | |
| CN109322647A (en) | A kind of demixing injection-production integrated pipe column and technique | |
| CN101216028B (en) | Hydraulic power oil pump | |
| CN104763621A (en) | Sucker-rod pump device for coal seam gas exploitation | |
| CN204266988U (en) | A kind of pilot-controlled switch sliding sleeve | |
| CN101936147B (en) | Multifunctional double-acting hydraulic oil producing device | |
| CN203961936U (en) | A kind of thermal recovery card envelope instrument of sand control stop-off steam injection | |
| CN204252980U (en) | A kind of separate layer water injection string | |
| CN201778686U (en) | Oil blending and gas prevention integral lifting process string | |
| CN208220728U (en) | Heavy oil wells tubing string | |
| CN103470233B (en) | A kind of heavy crude reservoir natural gas huff and puff oil recovery process system and oil production method | |
| CN102562681A (en) | Hydraulic jet pump capable of realizing reverse-circulating production and reverse-circulating lifting of pump core | |
| CN207093049U (en) | A kind of separate injection tubing string for flushing | |
| CN206053884U (en) | sealing liquid rope coring drill | |
| CN108071376B (en) | Injection and production string in coal-bed gas well | |
| CN201187437Y (en) | Single tube hydraulic oil well pump for resetting yield fluid pillar gravity | |
| CN204716201U (en) | A kind of pilot-controlled switch sliding sleeve | |
| CN104948147A (en) | Flow distributing device, heavy oil viscosity decreasing exploitation system and extraction method thereof | |
| CN204716213U (en) | Pressure fluctuation meter drives self-balancing piston pump pumping equipment | |
| CN201106441Y (en) | Three segment separate-infusing tubular pile for horizontal well water-injection | |
| CN209195388U (en) | Lifting column and tubular column system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |