CN106401537A - Well completion pipe string of underground gas storage well and well completion method - Google Patents
Well completion pipe string of underground gas storage well and well completion method Download PDFInfo
- Publication number
- CN106401537A CN106401537A CN201611020795.8A CN201611020795A CN106401537A CN 106401537 A CN106401537 A CN 106401537A CN 201611020795 A CN201611020795 A CN 201611020795A CN 106401537 A CN106401537 A CN 106401537A
- Authority
- CN
- China
- Prior art keywords
- oil pipe
- string
- well
- gas storage
- relief valve
- 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.)
- Pending
Links
- 238000003860 storage Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000010276 construction Methods 0.000 claims abstract description 12
- 239000004568 cement Substances 0.000 claims abstract description 9
- 238000005553 drilling Methods 0.000 claims abstract description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 58
- 239000003345 natural gas Substances 0.000 claims description 29
- 238000012360 testing method Methods 0.000 claims description 19
- 210000002445 nipple Anatomy 0.000 claims description 14
- 238000003801 milling Methods 0.000 claims description 8
- 241000191291 Abies alba Species 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 5
- 238000011161 development Methods 0.000 abstract description 2
- 230000002457 bidirectional effect Effects 0.000 abstract 1
- 238000004880 explosion Methods 0.000 abstract 1
- 230000007774 longterm Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 47
- 239000007789 gas Substances 0.000 description 35
- 238000004519 manufacturing process Methods 0.000 description 12
- 239000007924 injection Substances 0.000 description 11
- 238000002347 injection Methods 0.000 description 11
- 238000013461 design Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 238000005304 joining Methods 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 201000004569 Blindness Diseases 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 238000012546 transfer 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
Landscapes
- 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 belongs to the field of construction of underground gas storage wells of oil-gas field development engineering and particularly relates to a well completion pipe string of an underground gas storage well. The ell completion pipe string of the underground gas storage well comprises a casing string and a tubing string. The tubing string is located in the casing string, and the tubing string is located in a shaft formed by virtue f a drilling process, wherein the casing string comprises a cement ring and a casing pipe. The casing pipe is connected to the stratum around the shaft through the cement ring. The tubing string located in the casing pipe is connected and assembled by an underground tool. On the premise of not affecting normal operation and distribution output of the underground gas storage well, a bidirectional double-safety valve string cluster is designed, the mounting modes of a well completion string cluster and underground safety valves are optimized, the loss of the shaft, the string cluster and the whole gas storage well is reduced to the minimum if accidents happen at the mouth of the well and under the shaft of the underground gas storage well, for example, explosion, leakage and overload, the stability of the string in an operating working condition is improved, and long-term safe operation of the underground gas storage well is guaranteed.
Description
Technical field
A kind of the invention belongs to Oil-Gas Field Development Engineering underground natural gas storage tank well construction field, in particular it relates to underground gas storage
Storehouse well completion tubular column and completion method.
Background technology
Underground natural gas storage tank has that gas-storing capacity is big, safety coefficient is high, fire probability is little, good in economic efficiency, compared with LNG technology
Gas storage low cost and other advantages.Additionally, supply-demand relationship and peak regulation can be coordinated in underground natural gas storage tank, Implementation Strategy deposit is it is ensured that supply
Reliability and seriality, and can help to optimize the operation of production system and gas line network, for national security and region sky
So gas uses and has extremely important effect.
Because gas storage injection-production well takes the operating type adopting by force injection, in its well, natural gas is two-way flow, and inject,
Extraction pressure and temperature is continually changing, and the service life of well is not limited by recoverable reserves, and must ensure service life 30 years
More than, so putting forward higher requirement to the intensity of completion tubular string, sealing etc..Often consider during tubing string string design at present
Day note is adopted speed and is designed greatly, has blindness.
First, actual yield of joining is continually changing with social need, peak regulation needs etc., the current design side of gas storage well tubing string
Method is difficult to updated strain.
Secondly, the Seasonal Peak Shaving function of underground natural gas storage tank determines that it allows for bearing high speed, high pressure gas at short notice
The erosion of body, the erosion problem of especially safe valve position and seal failure are particularly evident.The general root of relief valve design at this stage
Selected according to oil pipe specification, but exceeded expected setting when joining yield, or gas storage well is occurred leakage accident to lead to note to adopt stream
When speed is excessive, safe valve position was it may happen that feature lost efficacy, or even caused gas storage well to reveal, stops production, or even scrapped and wait sternly
Weight accident.
In addition, the two-way operation that underground natural gas storage tank well had not only been noted but also adopted is so that the one-way relief valves of current gas well effect design
The demand for security of gas storage well operation can not be met.Especially in gas injection process, the accident reaction of one-way relief valves can not moment
The injection process of cut-out natural gas, or even cause safe defective valve because injection gas pressure is excessive, cause more massive accident.
Accordingly, it would be desirable to invent a kind of improved underground natural gas storage tank well completion tubular column and well-completing process.
Content of the invention
For the defect overcoming prior art to exist, a kind of present invention offer underground natural gas storage tank well completion tubular column and completion side
Method.
For achieving the above object, the present invention adopts following proposal：
Underground natural gas storage tank well completion tubular column, including casing string and tubing string, tubing string is located in casing string, and casing string is located at
In the pit shaft being formed by drilling technology by stratum；Wherein：
Described sleeve pipe post includes：Cement sheath and sleeve pipe, sleeve pipe is connected with pit shaft surrounding formation by cement sheath；
Described tubing string is located in sleeve pipe, and tubing string is linked and packed by downhole tool and forms；Described downhole tool, including：
Tubing hanger, join long pipe nipple, upper flowing joint, upper relief valve, middle flowing joint, lower relief valve, lower flowing joint, airtight oil sealing
Pipe, circulation slide sleeve, top oil pipe, packer, milling exntension tubs, bottom oil pipe, it is located joint, screen casing, guide shoe；Guide shoe, bottom
Oil pipe, screen casing, bottom oil pipe, it is located joint, bottom oil pipe, milling exntension tubs, bottom oil pipe, packer, top oil pipe, circulation
Sliding sleeve, top oil pipe, airtight sealed tube, lower flowing joint, top oil pipe, lower relief valve, top oil pipe, middle flowing joint, on
Portion's oil pipe, upper relief valve, top oil pipe, upper flowing joint, top oil pipe, join long pipe nipple, top oil pipe, tubing hanger from bottom to top
Assembling, is connected by variable buckle pipe nipple between above-mentioned downhole tool.
Preferably, described upper relief valve adopts self-balancing storm valve, and described lower relief valve adopts self-balancing down-hole to pacify
Full valve, upper relief valve can be turned on and off from ground control.
Above-mentioned underground natural gas storage tank well completion method, including following construction procedure：Prepare before completion construction, (two) completion；Complete
Well construction process includes (1) and rises to be acidified tubing string, and (2) well head and christmas tree pressure testing enter under (3) completion tubular column；Described (3) completion
Enter work progress under tubing string and comprise storm valve work progress.
With respect to prior art, the present invention has the advantages that：Do not affect underground natural gas storage tank well normal operation and
On the premise of joining yield, novelty devise two-way double safety valve tubing string string, optimize completion tubular column string and storm valve peace
Dress mode it is ensured that there is well head, downhole safety accident in underground natural gas storage tank well, such as blast, reveal, overload when, pit shaft, tubing string and whole
The loss of individual gas storage well is reduced to minimum, raising stability under working condition for the tubing string, ensures the length of underground natural gas storage tank well
Phase safe operation.
Brief description
Fig. 1 is underground natural gas storage tank well completion tubular column structural representation；
Fig. 2 is underground natural gas storage tank well completion tubular column storm valve connection line schematic diagram；
In figure：1. cement sheath, 10. sleeve pipe, 11. tubing hangers, 12. join long pipe nipple, and flow on 13. joint, safety on 14.
Valve, flow in 15. joint, 16. times relief valve, 17. times flowing joints, 18. airtight sealed tubes, 19. circulation slide sleeves, 110. tops
Oil pipe, 111. packers, 112. milling exntension tubs, 113. bottom oil pipes, 114. are located joint, 115. screen casings, 116. guide shoes；
21. pit shafts, 22. control circuits, 23. pressure transducers, 24. data storages, 25. pressure transducer terminals, 26. connection in series-parallel collection
Line device, 27. users, 28. computers
Specific embodiment
As shown in figure 1, underground natural gas storage tank well completion tubular column, including casing string and tubing string, tubing string is located in casing string,
Casing string is located in the pit shaft 21 being formed by drilling technology by stratum；Wherein：
Described sleeve pipe post includes：Cement sheath 1 and sleeve pipe 10, sleeve pipe 10 is connected with pit shaft 21 surrounding formation by cement sheath 1.
Described tubing string is located in sleeve pipe 10, and tubing string is linked and packed by downhole tool and forms；Described downhole tool, bag
Include：Tubing hanger 11, join long pipe nipple 12, upper flowing joint 13, upper relief valve 14, middle flowing joint 15, lower relief valve 16, lower flowing
Joint 17, airtight sealed tube 18, circulation slide sleeve 19, top oil pipe 110, packer 111, milling exntension tubs 112, bottom oil pipe
113rd, it is located joint 114, screen casing 115, guide shoe 116；Guide shoe 116, bottom oil pipe 113, screen casing 115, bottom oil pipe 113, it is located
Joint 114, bottom oil pipe 113, milling exntension tubs 112, bottom oil pipe 113, packer 111, top oil pipe 110, circulation slide sleeve
19th, top oil pipe 110, airtight sealed tube 18, lower flowing joint 17, top oil pipe 110, lower relief valve 16, top oil pipe 110,
Middle flowing joint 15, top oil pipe 110, upper relief valve 14, top oil pipe 110, upper flowing joint 13, top oil pipe 110, join length
Pipe nipple 12, top oil pipe 110, tubing hanger 11 are assembled from bottom to top, are connected by variable buckle pipe nipple between above-mentioned downhole tool.
Described upper relief valve 14 adopts self-balancing storm valve, and described lower relief valve 16 adopts self-balancing downhole safety
Valve, upper relief valve can be turned on and off from ground control.
Above-mentioned underground natural gas storage tank well completion method includes following construction procedure：
(1) prepare before completion construction, (two) completion；
Prepare work progress before completion construction and adopt general construction method in current industry, refer to industry standard；
Completion work progress includes (1) and rises to be acidified tubing string, and (2) well head and christmas tree pressure testing enter under (3) completion tubular column；
(1) in above-mentioned (two) completion work progress is risen to be acidified tubing string work progress, (2) well head and christmas tree pressure testing work progress and is adopted
With general construction method in current industry, refer to industry standard, the present invention is not specifically described；Described (3) completion tubular column
Under enter work progress and comprise storm valve work progress.
Below in conjunction with specific embodiment, underground natural gas storage tank according to the present invention well completion method is described：
(1) prepare work progress before completion construction：
(1) oil pipe four-way is installed, and is molded pressure testing.
(2) well-control equipment is installed, carries out blowout prevention and kill-job work.Preferably, ground high pressure line water-stop pressure testing value is extremely
Few be more than estimated operation pressure 1.2 times.
(3) replace mud.Lower external upset tubing tail band horn mouth, clear water replaces mud in pit shaft.
(4) drifting.Lower external upset tubing tail band drift size gauge tool, drifting is to artificial bottom of a well, and tags.
(5) scraping sleeve pipe.Lower external upset tubing tail band scraper in scraping three times repeatedly of packer neighbouring position well section, directly
To the phenomenon that is no hampered.
(6) well-flushing.With clear water huge discharge anti-flushing well, import and export fluidity consistent.
(7) pressure testing.Preferably, wellbore pressure test 20MPa, it is qualified for meet 30min pressure drop being less than 0.5MPa, then bores blind
Plate, secondary well-flushing, perforation.
(8) Operating Pressure equipment is installed.
(9) it is acidified.
(2) completion work progress：
(1) rise to be acidified tubing string.
(2) well head and christmas tree pressure testing.
(3) enter under completion tubular column.
(3) enter work progress under completion tubular column：
(1) check whether the outward appearance of all instruments is intact, carries out site pressure survey to upper relief valve 14 and lower relief valve 16
Examination, check packer 111 whether set pin quantity accurate.
(2) enter guide shoe 116+ under and be located joint 114+ screen casing 115 tool string.
(3) enter airtight sealed tube 18 under.
(4) enter to be located joint 114 under.
(5) enter airtight sealed tube 18 under.
(6) enter packer assembly under：Milling exntension tubs 112+ packer 111 tool string.Preferably, fashionable centralizing tool under
Well is put into, finding is hampered checks immediately, above carries 1-2 rice, is hampered and must not exceed 2 tons under string is slow.Preferably, under packer 111
Pure every oil pipe of running speed 40-60 second will be controlled after entering.
(7) enter airtight sealed tube 18 under.
(8) enter circulation slide sleeve 19 under.Circulation slide sleeve 19 hangs on to be prevented from during drill bit colliding with, under the fashionable protection tearing flowing hole
Film, draws button when being connected with airtight sealed tube 18.
(9) enter airtight sealed tube 18 under.
(10) enter top oil pipe 110 under.
(11) enter safety valve complement under：Under relief valve 16+ under flowing joint 15+ in relief valve 14+ on upper flowing joint 13+
Flowing joint 17 tool string.
(12) enter airtight sealed tube 18 under.
(13) during 1 tubing length position, carry out electrical measurement school deeply, check tubing string data to before precalculated position under tubing string,
Adjustment is joined long pipe nipple 12 and is accurately determined packer 111 setting position.
(14) preferred, sit pipe hanger 11 checking tubing seal of draining the oil.In sliding sleeve upslide blanking plug, 35MPa suppressed by pump truck,
Keep 15min, it is qualified that pressure drop is less than 0.5MPa.
(15) set packer 111.It is being located joint 114 upslide blanking plug, suppressing set packer 111 step by step.Preferably
, suppress 10MPa and keep 10min, 20MPa keeps 10min, 30MPa keeps 10min, 40MPa keeps 10min, 50MPa keeps
10min, 60MPa keep 10min.Set slow pressure release after finishing.
(16) check wellhead sealing.Relief valve 14 is closed in pass and lower relief valve 16 observes whether oil jacket pressure changes, such as
Fruit has pressure, and then slow pressure release, to zero, keeps 30 minutes, oil jacket pressure tears kill-job open when no longer changing after oil jacket pressure all zero
Implement, preventer, install christmas tree.
(17) check packer 111 sealing.Preferably, open relief valve 14 and lower relief valve 16, suppress in annular space
10MPa keeps 10 minutes, and it is qualified that pressure drop is less than 0.5MPa, salvages blanking plug after verifying.
(18) inject annular protective liquid.
(19) completion completes.
(4) completion tubular column relief valve work progress：
(1) upper relief valve 14, the test of lower relief valve 16 floor switches.Hydraulic oil is added, oil mass is handlance in handlance
Volume 2/3.Control circuit 22 is put into upper relief valve 14, lower relief valve 16 interface position, injects relief valve with handlance oil extraction
In piston, discharge air in piston, connect control circuit 22 on upper relief valve 14 and lower relief valve 16, slowly suppressed.
In confirmation relief valve 14 and lower relief valve 16 all can normally-open after carry out pressure discharge operations.Dismantle handlance.
(2) flowing joint 17 under, detain on lower relief valve 16.GB/T 28259-2012 assembling pressed by lower relief valve 16, and setting is adopted
Gas direction is its work operating mode.
(3) under, relief valve 16 connects to tubing string, the interface of reserved control circuit 22.
(4) upper flowing joint 13, detain on upper relief valve 14.Upper relief valve 14 presses GB/T 28259-2012 assembling, setting note
Gas operating mode is its work operating mode, installs connection in series-parallel hub 26, the interface of reserved control circuit 22 in upper relief valve 14 bottom.
(5) upper relief valve 14 connects to tubing string, and will be described to upper relief valve 14 interface and step (3) using control circuit
The interface of control circuit 22 connects.
(6) transfer tubing string, and connect relief valve 14 interface and control circuit 22.
(7) handlance and pressure gauge are connected to control circuit 22, handlance hydraulic oil filling, oil mass is handlance volume 3/4.
Control circuit 22 is put into lower relief valve 16 interface position, discharges air in lower relief valve 16 using handlance, connect control line
Lower relief valve 16 is arrived on road 22, and the described control circuit 22 of Connection Step (6) arrives connection in series-parallel hub 26.
(8) first time pressure testing.Preferably, under base area, gas storage well maximum gas production operating pressure determines pressure test pressure, control
Voltage stabilizing processed 20 minutes, it is qualified that pressure drop is not more than 0.8MPaPa.
(9) releasing hand pressure pump pressure makes in lower relief valve 16 pressure to ambient pressure.
(10) control circuit 22 is put into upper relief valve 14 interface position, is discharged using handlance empty in upper relief valve 14
Gas.Control circuit 22 is connected with the spare interface of connection in series-parallel hub 26.
(11) second pressure testing.Preferably, under base area, gas storage well maximum gas injection operating pressure determines pressure test pressure, control
Voltage stabilizing processed 20 minutes, it is qualified that pressure drop is not more than 0.8MPa.
(12) put relief valve 14 under and lower relief valve 16 arrives and specifies well depth position.Preferably, let out hand pressure after pressure testing is qualified
Pump pressure, to 30MPa, keeps it turned on decentralization relief valve, and control circuit 22 is transferred with oil pipe simultaneously, and in each oil pipe knot
Hoop position setting control circuit 22 protector.
(13) control circuit 22 passes through tubing hanger 11.Tubing hanger 11 is connected to after tubing string handlance pressure release to zero.Oil pipe
Hang 11 bottoms and pass through hole seal nipple through in control circuit 22, keep control circuit 22 to grow straight state, control circuit 22 is worn
More tubing hanger 11, hole seal nipple is passed through through in control circuit 22 in tubing hanger 11 top, tightens seal nipple.
(14) control circuit 22 passes through christmas tree.Control circuit 22 is passed through hole from production tree pass, connect production tree with
The complementary connector of control circuit 22.Preferably, above-mentioned complementary connector is carried out with pressure testing, well head test pressure before test pressure and installation
Power is identical, voltage stabilizing 20 minutes, and it is qualified, pressure release that pressure drop is not more than 0.8MPa.
(15) control circuit 22 is connected to the ground the computer 28 of face control system.During the well test of underground natural gas storage tank, connect
Ground control circuit 22 arrives production tree needle-valve；Underground natural gas storage tank well production period, ground control circuit 22 is connected to ground control
Computer 28.
(16) pass through above-mentioned work progress, described tubing string realizes following functions：Upper relief valve 14 is adopted with lower relief valve 16
Connected with control circuit 22, control circuit 22 is connected to connection in series-parallel hub 26, the upper relief valve 14 of pressure transducer 23 measurement with
The pressure data of the joint of top oil pipe 110 and lower relief valve 16 and the joint of top oil pipe 110, pressure data is by counting
Record according to memorizer 24, then ground-based computer 28 is uploaded to by pressure transducer terminal 25.User 27 is controlled by computer 28
Connection in series-parallel hub 26 processed carries out gas production, the switching of gas injection operating mode.
(17) pass through above-mentioned work progress, upper relief valve 14 and lower relief valve 16 are realized two-way series and installed.Downhole safety
Valve all can react under gas injection and gas production operating mode in time, and in closure tubing string, gas is allowed to erupt up or down.When adopting
When gas operation occurs down-hole, well head accident, lower relief valve 16 starts emergency reaction, so that natural gas to be adopted is sealed it is ensured that well
Cylinder safety；When gas injection operation occurs down-hole, well head accident, upper relief valve 14 starts emergency reaction with lower relief valve 16 simultaneously,
Form closed section it is ensured that natural gas injection and the natural gas injecting promptly isolates between upper relief valve and lower relief valve,
Protection tubular column structure complete it is ensured that pit shaft safety.
Preferably, the present invention is used for the gas injection of underground natural gas storage tank well, gas production operating mode.But the invention is not restricted to be only applied to ground
Lower gas storage well, all there is gas injection, the gas well of gas production function all can be applied.
Embodiment described above is merely to illustrate the present invention, is not limited to the range of application of the present invention.Any ability
The technical staff in domain, the structure made on the premise of the design without departing from the present invention and principle, connected mode etc. change and repair
Change, the scope of protection of the invention all should be belonged to.
Claims (3)
1. a kind of underground natural gas storage tank well completion tubular column, including casing string and tubing string, tubing string is located in casing string, casing string position
In the pit shaft being formed by drilling technology by stratum；It is characterized in that：
Described sleeve pipe post includes：Cement sheath and sleeve pipe, sleeve pipe is connected with pit shaft surrounding formation by cement sheath；
Described tubing string is located in sleeve pipe, and tubing string is linked and packed by downhole tool and forms；Described downhole tool, including：Oil pipe
Hang, join long pipe nipple, upper flowing joint, upper relief valve, middle flowing joint, lower relief valve, lower flowing joint, airtight sealed tube, follow
Ring sliding sleeve, top oil pipe, packer, milling exntension tubs, bottom oil pipe, it is located joint, screen casing, guide shoe；Guide shoe, bottom oil pipe,
Screen casing, bottom oil pipe, be located joint, bottom oil pipe, milling exntension tubs, bottom oil pipe, packer, top oil pipe, circulation slide sleeve,
Top oil pipe, airtight sealed tube, lower flowing joint, top oil pipe, lower relief valve, top oil pipe, middle flowing joint, top oil
Pipe, upper relief valve, top oil pipe, upper flowing joint, top oil pipe, join long pipe nipple, top oil pipe, tubing hanger fill from bottom to top
Join, connected by variable buckle pipe nipple between above-mentioned downhole tool.
2. underground natural gas storage tank according to claim 1 well completion tubular column it is characterised in that：Described upper relief valve is using certainly flat
Weighing apparatus storm valve, described lower relief valve adopts self-balancing storm valve, and upper relief valve can be turned on and off from ground control.
3. well completion method in underground natural gas storage tank described in claim 1 or 2 is it is characterised in that include following construction procedure：Completion is applied
Prepare before work, (two) completion；
Completion work progress includes (1) and rises to be acidified tubing string, and (2) well head and christmas tree pressure testing enter under (3) completion tubular column；Described
(3) enter work progress under completion tubular column and comprise storm valve work progress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611020795.8A CN106401537A (en) | 2016-11-16 | 2016-11-16 | Well completion pipe string of underground gas storage well and well completion method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611020795.8A CN106401537A (en) | 2016-11-16 | 2016-11-16 | Well completion pipe string of underground gas storage well and well completion method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106401537A true CN106401537A (en) | 2017-02-15 |
Family
ID=58069082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611020795.8A Pending CN106401537A (en) | 2016-11-16 | 2016-11-16 | Well completion pipe string of underground gas storage well and well completion method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106401537A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060703A (en) * | 2017-06-28 | 2017-08-18 | 中国石油集团渤海钻探工程有限公司 | Multiple expansion sand control screen well completion technique tubular pile in a kind of sleeve pipe |
| CN112081535A (en) * | 2019-06-14 | 2020-12-15 | 中国石油化工股份有限公司 | Ultra-deep high-sulfur-content gas well completion pipe string and construction method thereof |
| CN114000868A (en) * | 2020-07-13 | 2022-02-01 | 中国石油天然气股份有限公司 | Method and device for determining airtightness of oil pipe of high-pressure gas well |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775977A (en) * | 2010-01-22 | 2010-07-14 | 中国石油化工股份有限公司 | Dual-tube injection well safety production string |
| CN202645521U (en) * | 2012-06-25 | 2013-01-02 | 中国石油天然气股份有限公司 | Horizontal well injecting and extracting pipe column of gas reservoir |
| CN202900175U (en) * | 2012-07-26 | 2013-04-24 | 中国石油天然气股份有限公司 | Gas storage suspending pressure meter manometry completion pipe string |
| CN103089199A (en) * | 2011-11-03 | 2013-05-08 | 大港油田集团有限责任公司 | Depleted oil-gas reservoir underground gas storage injection-production string and operating method thereof |
| CN104295243A (en) * | 2013-10-29 | 2015-01-21 | 中国石油化工股份有限公司 | Completion pipe column and completion technology for oil-gas well |
-
2016
- 2016-11-16 CN CN201611020795.8A patent/CN106401537A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775977A (en) * | 2010-01-22 | 2010-07-14 | 中国石油化工股份有限公司 | Dual-tube injection well safety production string |
| CN103089199A (en) * | 2011-11-03 | 2013-05-08 | 大港油田集团有限责任公司 | Depleted oil-gas reservoir underground gas storage injection-production string and operating method thereof |
| CN202645521U (en) * | 2012-06-25 | 2013-01-02 | 中国石油天然气股份有限公司 | Horizontal well injecting and extracting pipe column of gas reservoir |
| CN202900175U (en) * | 2012-07-26 | 2013-04-24 | 中国石油天然气股份有限公司 | Gas storage suspending pressure meter manometry completion pipe string |
| CN104295243A (en) * | 2013-10-29 | 2015-01-21 | 中国石油化工股份有限公司 | Completion pipe column and completion technology for oil-gas well |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060703A (en) * | 2017-06-28 | 2017-08-18 | 中国石油集团渤海钻探工程有限公司 | Multiple expansion sand control screen well completion technique tubular pile in a kind of sleeve pipe |
| CN112081535A (en) * | 2019-06-14 | 2020-12-15 | 中国石油化工股份有限公司 | Ultra-deep high-sulfur-content gas well completion pipe string and construction method thereof |
| CN114000868A (en) * | 2020-07-13 | 2022-02-01 | 中国石油天然气股份有限公司 | Method and device for determining airtightness of oil pipe of high-pressure gas well |
| CN114000868B (en) * | 2020-07-13 | 2023-10-27 | 中国石油天然气股份有限公司 | Method and device for determining air tightness of oil pipe of high-pressure gas well |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101586462B (en) | Method of suspending, completing and working over a well | |
| CN105545221B (en) | A kind of shale gas well no killing well is not with pressure to remove flow string and construction method | |
| CN202900205U (en) | Multifunctional formation testing well completion integral pipe column | |
| CN201908632U (en) | Offshore self-blowout and artificial lifting integrated well completion tubular column | |
| CN101975041B (en) | Well cementing method for avoiding coal bed and device thereof | |
| CN207080207U (en) | A kind of oil field is every excavating technology tubing string | |
| CN109630060A (en) | A kind of complete well operation tubing string of repeatable no killing well and construction technology | |
| CN106401537A (en) | Well completion pipe string of underground gas storage well and well completion method | |
| CN108868734A (en) | Gas well solvable packer multiple fracturing completion integral partial pressure tubular column and method | |
| CN105114003A (en) | Multifunctional oil testing well completion pipe string and method for well prone to blowout and leakage | |
| CN108625830A (en) | Ball-throwing type selective sand control process pipe string and its method | |
| CN206668234U (en) | A kind of ball-throwing type selective sand control process pipe string | |
| CN205422562U (en) | Not kill -job of shale gas well is not taken and has been pressed down flow string | |
| CN110242257A (en) | A kind of gas hydrates underground pilot production process pipe string | |
| CN207526432U (en) | A kind of retrievable tie back liner device of anchoring | |
| CN205605156U (en) | Workover device is pressed in oil gas field area | |
| CN203939477U (en) | A kind of formation testing and completion practice integrated pipe column | |
| CN206158709U (en) | Support formula water injection string | |
| CN112081535A (en) | Ultra-deep high-sulfur-content gas well completion pipe string and construction method thereof | |
| CN104563872B (en) | Blockage resisting self-filling-type float collar | |
| CN101839117B (en) | Annulus safety valve | |
| CN207144900U (en) | A kind of oil jacket annular pressure automatic protecting control device | |
| CN208564457U (en) | A kind of horizontal well multistage fracturing tubing string | |
| CN203347718U (en) | Running tool for hydraulic packer | |
| CN205172513U (en) | Bridging plug device based on expandable casing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170215 |
|
| WD01 | Invention patent application deemed withdrawn after publication |