CN110080719A - A kind of solvable pressure difference sliding sleeve and horizontal well naked eye staged fracturing construction method - Google Patents
A kind of solvable pressure difference sliding sleeve and horizontal well naked eye staged fracturing construction method Download PDFInfo
- Publication number
- CN110080719A CN110080719A CN201910225253.1A CN201910225253A CN110080719A CN 110080719 A CN110080719 A CN 110080719A CN 201910225253 A CN201910225253 A CN 201910225253A CN 110080719 A CN110080719 A CN 110080719A
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- Prior art keywords
- sliding sleeve
- pressure difference
- top connection
- wall
- solvable
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- 238000010276 construction Methods 0.000 title claims abstract description 27
- 238000003825 pressing Methods 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 14
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 238000005553 drilling Methods 0.000 claims description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 239000011777 magnesium Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 230000011218 segmentation Effects 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- GANNOFFDYMSBSZ-UHFFFAOYSA-N [AlH3].[Mg] Chemical compound [AlH3].[Mg] GANNOFFDYMSBSZ-UHFFFAOYSA-N 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- 238000004090 dissolution Methods 0.000 abstract description 3
- 238000007654 immersion Methods 0.000 abstract description 3
- 238000006467 substitution reaction Methods 0.000 abstract description 3
- 230000000087 stabilizing effect Effects 0.000 description 4
- 229910000861 Mg alloy Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C23/00—Alloys based on magnesium
- C22C23/02—Alloys based on magnesium with aluminium as the next major constituent
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/063—Valve or closure with destructible element, e.g. frangible disc
-
- 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
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
-
- 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
- E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
- E21B2200/06—Sleeve valves
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The present invention relates to horizontal well naked eye staged fracturing technical field, in particular to a kind of solvable pressure difference sliding sleeve and horizontal well naked eye staged fracturing construction method.The top connection side wall circumferencial direction of the pressure difference sliding sleeve is evenly arranged with multiple pressure break holes, inner sliding sleeve is connected on top connection inner wall by sliding sleeve shear pin, inner sliding sleeve seals pressure break hole, inner sliding sleeve upper end between sealing ring I and top connection inner wall by sealing, and inner sliding sleeve lower end between sealing ring II and lower contact inner wall by sealing.The present invention is realized using shift sleeve structure inside the soluble internal conventional non-dissolution of shift sleeve structure substitution, in pressing crack construction process when pressure difference sliding sleeve cannot be opened smoothly, pass through the immersion of Klorvess Liquid, under setting time, internal sliding sleeve can be also completely dissolved, and tool pressure break hole equally can be realized unlatching, efficiently connection fracturing string and reservoir, circulation canal is established for subsequent pressing crack construction, to reduce entire pressing crack construction risk, high reliablity.
Description
Technical field:
The present invention relates to horizontal well naked eye staged fracturing technical field, in particular to a kind of solvable pressure difference sliding sleeve and horizontal well
Naked eye staged fracturing construction method.
Background technique:
Horizontal well naked eye staged fracturing technology is lower going-into-well together with completion tubular column is merged into one-trip string with fracturing string
It is interior.This kind of fracturing string generally comprises hanging packer, open hole packer, ball-throwing type sliding sleeve, differential sliding sleeve and setting ball
The tools such as seat insulate horizontal segment using open hole packer, select a certain number of pitching sliding sleeves and naked eye to seal according to pressure break number of segment
Well section laterally selective staged fracturing is realized every device.By carrying out the transformation of selectivity to oil-gas Layer, to realize raising individual well
The purpose of yield.This kind of segmentation well completion, fracturing string are completion tubular column, reduce construction cost, and without solid
Well operations avoid the ropy problem of horizontal cementing.Although horizontal well naked eye staged fracturing technology is in construction period, expense
And the advantage that fracturing transformation effect has other fractured horizontal well renovation techniques incomparable, but the pressure of present both at home and abroad
Split tubing string first segment be by pressure difference sliding sleeve open, due to wellbore and reservoir situation complexity and bottom pressure temperature it is changeable
Property, will cause pressure difference sliding sleeve sometimes can not open, and entire horizontal well fracturing pipe string circulation canal cannot be successfully established, to whole
A fracturing work brings great risk, once there are this emergency situations, subsequent each section will not can be carried out pressing crack construction, and this
When open hole packer swollen envelope, completion tubular column can not be played out, this will imply that scrapping for a bite horizontal well, direct economic loss
Several ten million.
Summary of the invention:
The technical problem to be solved in the present invention is to provide a kind of solvable pressure difference sliding sleeves and horizontal well naked eye staged fracturing to construct
Method, the pressure difference sliding sleeve are realized using shift sleeve structure inside the soluble internal conventional non-dissolution of shift sleeve structure substitution, in pressure break
In work progress when pressure difference sliding sleeve cannot be opened smoothly, pass through the immersion of Klorvess Liquid, under setting time, internal sliding sleeve
Also it can be completely dissolved, tool pressure break hole equally can be realized unlatching, efficiently be connected to fracturing string and reservoir, apply for subsequent pressure break
Work establishes circulation canal, to reduce entire pressing crack construction risk, high reliablity.It overcomes existing pressure difference sliding sleeve and there is opening
The deficiency of the risk of failure.
The technical solution used in the present invention is: a kind of solvable pressure difference sliding sleeve, including top connection, inner sliding sleeve and top connection
The lower contact being connected；Top connection side wall circumferencial direction is evenly arranged with multiple pressure break holes, and inner sliding sleeve is connected by sliding sleeve shear pin
On top connection inner wall, inner sliding sleeve seals pressure break hole, and inner sliding sleeve upper end is interior by sealing between sealing ring I and top connection inner wall
Lock ring, top connection lower part is arranged by sealing between sealing ring II and lower contact inner wall in sliding sleeve lower end in inner sliding sleeve unit with grooves in outer wall
Inner surface is machined with lock, and inner sliding sleeve is displaced downwardly to lock rings when opening pressure break hole, and on lock, inner sliding sleeve uses magnesium alloy
Material is made, the magnesium alloy by the magnesium of weight percent 85%, 10% aluminium, 3% nickel, 2% copper form.
Inner sliding sleeve outer wall is provided with limited step, and the limited step can be limited in lower contact after inner sliding sleeve moves down
On end face.
A kind of horizontal well naked eye staged fracturing construction method using solvable pressure difference sliding sleeve, the construction method step are as follows:
First with drilling rod by staged fracturing tool string G.I.H design position, which includes hanging packer, naked
Eye packer, pitching sliding sleeve, solvable pressure difference sliding sleeve, setting ball seat+ball-and-seat and guide shoe pump pitching with Klorvess Liquid, to
After open hole packer and the swollen envelope of hanging packer, act drilling rod, then oil pipe of the tripping in hydraulic anchor carries out tieback, most
Solvable pressure difference sliding sleeve is opened afterwards and pitching sliding sleeve carries out the fracturing work of equivalent layer position, if solvable pressure difference sliding sleeve is not opened, etc.
After until the inner sliding sleeve of solvable pressure difference sliding sleeve is completely dissolved, realizing thoroughly being connected to of staged fracturing tool string and stratum,
Carry out the pressing crack construction of next step.
Klorvess Liquid mass concentration is 5%-10%.
The beneficial effects of the present invention are: the present invention is realized using in the soluble internal conventional non-dissolution of shift sleeve structure substitution
Portion's shift sleeve structure, by the immersion of Klorvess Liquid, is being set in pressing crack construction process when pressure difference sliding sleeve cannot be opened smoothly
It fixes time down, internal sliding sleeve can be also completely dissolved, and tool pressure break hole equally can be realized unlatching, efficiently be connected to fracturing string and storage
Layer establishes circulation canal for subsequent pressing crack construction, to reduce entire pressing crack construction risk, high reliablity.
Detailed description of the invention:
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the structural schematic diagram of solvable pressure difference sliding sleeve.
Staged fracturing tool string is sent into design position schematic diagram in well for drilling rod by Fig. 2.
Fig. 3 is staged fracturing tool string schematic diagram after oil tube tieback well head.
Specific embodiment:
As shown in Figure 1, a kind of solvable pressure difference sliding sleeve, including top connection 1, inner sliding sleeve 4, be connected with top connection 1 under connect
First 10；Top connection 1 passes through to be fixed between screw 9 and lower contact 10, and 1 side wall circumferencial direction of top connection is evenly arranged with multiple pressure breaks
Hole 3, inner sliding sleeve 4 are connected on 1 inner wall of top connection by sliding sleeve shear pin 5, and inner sliding sleeve 4 seals pressure break hole 3, and 4 upper end of inner sliding sleeve is logical
It crosses between 1 inner wall of sealing ring I 2 and top connection and seals, 4 lower end of inner sliding sleeve passes through close between 10 inner wall of sealing ring II 8 and lower contact
Envelope, 4 unit with grooves in outer wall of inner sliding sleeve is interior to be arranged C-shaped lock ring 6, and 1 lower inner surface of top connection is machined with lock 7, and inner sliding sleeve 4, which is displaced downwardly to, to be beaten
C-shaped lock ring 6 is locked on lock 7 when opening pressure break hole 3, and inner sliding sleeve 4 is avoided to reset；Inner sliding sleeve 4 is made of magnesium-aluminium alloy material,
The magnesium alloy by the magnesium of weight percent 85%, 10% aluminium, 3% nickel, 2% copper form.
4 outer wall of inner sliding sleeve is provided with limited step, and the limited step can be limited in lower contact after inner sliding sleeve 4 moves down
On 10 upper surfaces.
As shown in Figure 2 and Figure 3, a kind of horizontal well naked eye staged fracturing construction method using solvable pressure difference sliding sleeve, the construction
Method and step is as follows: using drilling rod 11 by staged fracturing tool string G.I.H design position, the staged fracturing tool string packet first
Include hanging packer 12, open hole packer 13, pitching sliding sleeve 14, solvable pressure difference sliding sleeve 15, setting ball seat 17+ ball-and-seat and guide shoe
18, start to carry out mud replacement, puts into low-density ball after having replaced mud, pumped with Klorvess Liquid, fall on setting ball to ball
After on seat 17,16-18MPa is suppressed, the shear pin of hanging packer 12, open hole packer 13 is cut, enables hanging packer 12, naked eye
Packer 13 starts to set, and improves pressure step by step to 20MPa, pressure stabilizing 3min, hanging packer 12, open hole packer 13 rise and sealed
Finish, continues to improve pressure to 25MPa pressure stabilizing 5min, hanging packer 12 is given up, and acts drilling rod 11, and then tripping in has hydraulic anchor
19 oil pipe 20 carries out tieback, and after completing tieback, annular space ties weighing apparatus pressure 10MPa and tests envelope, and pressure stabilizing 5min does not drop, and tests sealing lattice,
35MPa is gradually suppressed in oil pipe 20 and opens solvable pressure difference sliding sleeve 15, carries out first segment pressing crack construction, it, can be with if do not opened
Pressure is properly increased, is incremented by 3MPa, pressure stabilizing 3min step by step, if solvable pressure difference sliding sleeve 15 still cannot be opened successfully, waits one
It fixes time, the inner sliding sleeve 4 to solvable pressure difference sliding sleeve 15 is completely dissolved, and realizes that staged fracturing tool string is connected to the thorough of stratum 16
Afterwards, the pressing crack construction of first segment can be carried out.Then according to detail design, the low-density ball of corresponding size is successively put into, to low
Density ball opens pitching sliding sleeve 14 after reaching ball seat, successively carries out the pressing crack construction of corresponding interval.When final stage pressing crack construction
After, production is asked in open flow drain.
Klorvess Liquid mass concentration is 5%-10%.
It is understood that being merely to illustrate the present invention above with respect to specific descriptions of the invention and being not limited to this
Technical solution described in inventive embodiments, those skilled in the art should understand that, still the present invention can be carried out
Modification or equivalent replacement, to reach identical technical effect；As long as meet use needs, all protection scope of the present invention it
It is interior.
Claims (4)
1. a kind of solvable pressure difference sliding sleeve, including top connection (1), inner sliding sleeve (4), the lower contact (10) being connected with top connection (1)；
It is characterized by: top connection (1) side wall circumferencial direction is evenly arranged with multiple pressure break holes (3), inner sliding sleeve (4) passes through sliding sleeve shear pin
(5) be connected on top connection (1) inner wall, inner sliding sleeve (4) seal pressure break hole (3), inner sliding sleeve (4) upper end by sealing ring I (2) with
It is sealed between top connection (1) inner wall, inner sliding sleeve (4) lower end is interior by sealing between sealing ring II (8) and lower contact (10) inner wall
Lock ring (6) are set in sliding sleeve (4) unit with grooves in outer wall, top connection (1) lower inner surface is machined with lock (7), and inner sliding sleeve (4) is displaced downwardly to
It opens pressure break hole (3) Shi Suohuan (6) to be locked on lock (7), inner sliding sleeve (4) is made of magnesium-aluminium alloy material, which closes
Gold by the magnesium of weight percent 85%, 10% aluminium, 3% nickel, 2% copper form.
2. solvable pressure difference sliding sleeve described in accordance with the claim 1, it is characterised in that: inner sliding sleeve (4) outer wall is provided with limit
Step, the limited step can be limited on lower contact (10) upper surface after inner sliding sleeve (4) moves down.
3. a kind of horizontal well naked eye staged fracturing construction method using solvable pressure difference sliding sleeve described in accordance with the claim 1,
Be characterized in that: the construction method step is as follows: first with drilling rod by staged fracturing tool string G.I.H design position, the segmentation
Fracturing tool string includes hanging packer, open hole packer, pitching sliding sleeve, solvable pressure difference sliding sleeve, setting ball seat+ball-and-seat and draws
Shoes, with Klorvess Liquid pump pitching, to open hole packer and the swollen envelope of hanging packer after, rise drilling rod, then tripping in
Oil pipe with hydraulic anchor carries out tieback, finally opens solvable pressure difference sliding sleeve and pitching sliding sleeve carries out the pressure break work of equivalent layer position
Industry, if solvable pressure difference sliding sleeve is not opened, waiting is completely dissolved up to the inner sliding sleeve (4) of solvable pressure difference sliding sleeve, realizes segmentation pressure
After splitting thoroughly being connected to of tool string and stratum, the pressing crack construction of next step can be carried out.
4. the horizontal well naked eye staged fracturing construction method described in accordance with the claim 3 using solvable pressure difference sliding sleeve, feature
Be: the Klorvess Liquid mass concentration is 5%-10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910225253.1A CN110080719A (en) | 2019-03-25 | 2019-03-25 | A kind of solvable pressure difference sliding sleeve and horizontal well naked eye staged fracturing construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910225253.1A CN110080719A (en) | 2019-03-25 | 2019-03-25 | A kind of solvable pressure difference sliding sleeve and horizontal well naked eye staged fracturing construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110080719A true CN110080719A (en) | 2019-08-02 |
Family
ID=67413561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910225253.1A Pending CN110080719A (en) | 2019-03-25 | 2019-03-25 | A kind of solvable pressure difference sliding sleeve and horizontal well naked eye staged fracturing construction method |
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| CN (1) | CN110080719A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110439522A (en) * | 2019-08-16 | 2019-11-12 | 中石化石油工程技术服务有限公司 | The controllable corrosion opening device in first section pressure break channel and pressure break segmentation operation construction technology |
| CN111236879A (en) * | 2020-01-19 | 2020-06-05 | 中国石油天然气股份有限公司 | Soluble tool packing and unpacking method |
| CN111396015A (en) * | 2020-05-19 | 2020-07-10 | 中国海洋石油集团有限公司 | Desirable big latus rectum fracturing sliding sleeve of ball seat |
| CN112483009A (en) * | 2019-09-12 | 2021-03-12 | 中国石油化工股份有限公司 | Fracturing connector and well cementation tubular column comprising same |
| CN113323627A (en) * | 2020-02-28 | 2021-08-31 | 中国石油化工股份有限公司 | Differential pressure sliding sleeve and oil-gas well fracturing construction method |
| CN113803021A (en) * | 2020-06-12 | 2021-12-17 | 中国石油化工股份有限公司 | Fracturing nipple and fracturing string comprising same |
| CN114482958A (en) * | 2020-10-26 | 2022-05-13 | 中国石油化工股份有限公司 | Casing cementing full-bore infinite staged fracturing well completion device and fracturing well completion method thereof |
| CN114622885A (en) * | 2020-12-11 | 2022-06-14 | 中国石油化工股份有限公司 | Cement device is prevented in well cementation sliding sleeve thermal degradation |
| CN116084905A (en) * | 2023-03-13 | 2023-05-09 | 大庆市璞庆钻采设备制造有限公司 | Sand blaster for oilfield stratum fracturing |
| WO2023160732A1 (en) * | 2022-02-28 | 2023-08-31 | 哈尔滨艾拓普科技有限公司 | Full-bore and infinite-stage segmented-fracturing sliding sleeve based on intelligent label control, and implementation method |
| US11933138B2 (en) | 2020-06-12 | 2024-03-19 | China Petroleum & Chemical Corporation | Sliding sleeve device |
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| US20180010217A1 (en) * | 2014-07-28 | 2018-01-11 | Magnesium Elektron Limited | Corrodible downhole article |
| CN104453778A (en) * | 2014-11-06 | 2015-03-25 | 中国石油天然气股份有限公司 | Fracturing sliding sleeve with dissoluble ball seat and fracturing method |
| CN204532261U (en) * | 2014-12-12 | 2015-08-05 | 中国石油天然气股份有限公司 | Controllable soluble ball seat multistage fracturing sliding sleeve |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110439522A (en) * | 2019-08-16 | 2019-11-12 | 中石化石油工程技术服务有限公司 | The controllable corrosion opening device in first section pressure break channel and pressure break segmentation operation construction technology |
| CN110439522B (en) * | 2019-08-16 | 2022-03-18 | 中国石油化工集团有限公司 | Controllable corrosion opening device for first-section fracturing channel and fracturing sectional operation construction process |
| CN112483009A (en) * | 2019-09-12 | 2021-03-12 | 中国石油化工股份有限公司 | Fracturing connector and well cementation tubular column comprising same |
| CN112483009B (en) * | 2019-09-12 | 2022-11-25 | 中国石油化工股份有限公司 | Fracturing connector and well cementation tubular column comprising same |
| CN111236879A (en) * | 2020-01-19 | 2020-06-05 | 中国石油天然气股份有限公司 | Soluble tool packing and unpacking method |
| CN111236879B (en) * | 2020-01-19 | 2022-06-03 | 中国石油天然气股份有限公司 | Soluble tool packing and unpacking method |
| CN113323627A (en) * | 2020-02-28 | 2021-08-31 | 中国石油化工股份有限公司 | Differential pressure sliding sleeve and oil-gas well fracturing construction method |
| CN111396015A (en) * | 2020-05-19 | 2020-07-10 | 中国海洋石油集团有限公司 | Desirable big latus rectum fracturing sliding sleeve of ball seat |
| CN111396015B (en) * | 2020-05-19 | 2022-05-06 | 中国海洋石油集团有限公司 | Desirable big latus rectum fracturing sliding sleeve of ball seat |
| CN113803021A (en) * | 2020-06-12 | 2021-12-17 | 中国石油化工股份有限公司 | Fracturing nipple and fracturing string comprising same |
| US11933138B2 (en) | 2020-06-12 | 2024-03-19 | China Petroleum & Chemical Corporation | Sliding sleeve device |
| CN114482958A (en) * | 2020-10-26 | 2022-05-13 | 中国石油化工股份有限公司 | Casing cementing full-bore infinite staged fracturing well completion device and fracturing well completion method thereof |
| CN114622885A (en) * | 2020-12-11 | 2022-06-14 | 中国石油化工股份有限公司 | Cement device is prevented in well cementation sliding sleeve thermal degradation |
| WO2023160732A1 (en) * | 2022-02-28 | 2023-08-31 | 哈尔滨艾拓普科技有限公司 | Full-bore and infinite-stage segmented-fracturing sliding sleeve based on intelligent label control, and implementation method |
| CN116084905A (en) * | 2023-03-13 | 2023-05-09 | 大庆市璞庆钻采设备制造有限公司 | Sand blaster for oilfield stratum fracturing |
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Effective date of registration: 20200928 Address after: 100120 Beijing Xicheng District six laying Kang Applicant after: CHINA NATIONAL PETROLEUM Corp. Applicant after: China National Petroleum Corporation Great Wall Drilling Engineering Co.,Ltd. Address before: 124010 Xinglongtai, Liaoning Province, oil street, No. 96, No. Applicant before: China National Petroleum Corporation Great Wall Drilling Engineering Co.,Ltd. |
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Application publication date: 20190802 |