CN108625817A - Small size is exempted to bore plug completion tool - Google Patents
Small size is exempted to bore plug completion tool Download PDFInfo
- Publication number
- CN108625817A CN108625817A CN201710176824.8A CN201710176824A CN108625817A CN 108625817 A CN108625817 A CN 108625817A CN 201710176824 A CN201710176824 A CN 201710176824A CN 108625817 A CN108625817 A CN 108625817A
- Authority
- CN
- China
- Prior art keywords
- filling
- circulation port
- packer
- piston
- lower contact
- 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.)
- Granted
Links
- 238000012856 packing Methods 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 208000034656 Contusions Diseases 0.000 claims abstract description 15
- 239000000203 mixture Substances 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 238000004080 punching Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 2
- 229910000737 Duralumin Inorganic materials 0.000 abstract description 2
- 239000000956 alloy Substances 0.000 abstract description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/128—Packers; Plugs with a member expanded radially by axial pressure
- E21B33/1285—Packers; Plugs with a member expanded radially by axial pressure by fluid pressure
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
- E21B33/134—Bridging plugs
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 present invention relates to a kind of small sizes suitable for 139.7mm pipe strings to exempt to bore plug completion tool, including：The outer tube formed after mainly being connected with lower contact by upper housing, circulating sleeve, closing set, packer；The inner tube formed is mainly connected with central tube by fishing socket, bruising set, filling set, ball seat；Wherein packer is sleeved on outside lower contact, is mainly made of the piston component of packing element and packing element both ends.When the tool application, mud grouting is not had to when setting of casing, is saved the activity duration, and device inner tube lower part is ball seat, pitching is front upper and lower to be communicated, and such as complex situations, can be recycled with turn on pump；And inner tube is made of duralumin, hard alumin ium alloy material, if meeting complex situations, can not salvage junk mill drill bit can be descended to be ground off, the safety and reliability of operation is improved；After bruising, while closing set closing circulation port, set interior sealing downlink failure is closed so that inner tube communicates up and down, to eliminate piston effect when salvaging, reduces salvaging power.
Description
Technical field
The present invention relates to a kind of top cementing of horizontal well sieve tube of oilfield well completion field of tool to exempt to bore plug completion system.
Background technology
Currently, top cementing of horizontal well sieve tube exempts to bore plug technique, obtained in the construction of oilfield horizontal well completion wide
General successful application.In protection sleeve pipe and completion attachment, reduce completion period in terms of the huge advantage that shows.But with brill
The development of well technology, deep-well, middle-deep well, extended horizontal well are on the increase, these wells have well depth, completion practice time long；
Casing size is small, using salvaging the features such as power is big when exempting to bore plug tool, existing to exempt to bore plug tool to be difficult the needs for meeting scene,
Sometimes down-hole accident can even be caused.
Patent publication No. CN102071902B provides a kind of horizontal cementing and exempts to bore plug device, this exempts to bore plug device master
If by top connection (1), outer tube (2), hydraulic control portion, inner tube (6), valve union (8), blind plate (9), packing element, central tube
(12) it is flexibly connected with top connection (1) with lower contact (18) composition, one end of the outer tube (2), the other end and valve union (8)
Flexible connection, is equipped with inner tube (6) in outer tube (2), and the lower part of inner tube is equipped with trepanning, and when inner tube downlink, trepanning can be established with stratum
Circulation canal, inner tube top are equipped with the screw thread being tightly inserted into for fishing spear, and the bottom of inner tube (6) is equipped with blind plate (9), and described is outer
Manage fixed hydraulic control section between (2) and inner tube (6)；Valve union (8) side is connect with central tube (12)；Central tube
(12) it is externally provided with packing element, central tube (12) bottom connects lower contact (18)；The hydraulic control portion includes fluid cylinder (3), copper
Shear pin (4), closes set (7) at interstage sleeve (5), and the both ends of the copper shear pin (4) are separately connected inner tube (6) and outer tube (2).The dress
It is blind plate to set middle inner tube lower part, so, setting of casing process is unable to turn on pump cycle, if encountering down hole problem, lacks solution and arranges
It applies；And to be often in the milk during setting of casing, pipe string quiescent time in well is long, not only wastes time, if it is unstable to meet the borehole wall
Situations such as determining easily causes well slough.What patent publication No. CN202125275U was provided exempts to bore plug tool construction complexity, and bruising is closed
After circulation port, piston effect cannot be eliminated, it is big that when salvaging salvages power, may not apply to deep-well.
Invention content
It is insufficient existing for plug tool for exempting to bore at present, it is recyclable when a kind of setting of casing is provided, salvage power it is small, using well more
The deep novel small size suitable for 139.7mm tubing strings is exempted to bore plug completion tool.
The technical scheme is that：
Small size is exempted to bore plug completion tool, after mainly being connected with lower contact by upper housing, circulating sleeve, closing set, packer
The outer tube of composition；The inner tube formed is mainly connected with central tube by fishing socket, bruising set, filling set, ball seat；Packer is sleeved on
Outside lower contact, mainly it is made of the piston component of packing element and packing element both ends, wherein：Drum outer wall epimere is salvaged with upper housing by locking
Block is connected and fixed and keeps sealing, and salvages there are gap between drum outer wall hypomere and upper housing, the fishing socket of the gap location is radial
Equipped with inlet opening；Bruising set is fixed on fishing socket inner wall by shear pin, and blocks the inlet opening that fishing socket is radially provided with；Filling set
It is connected to the lower end of fishing socket, it is external opposite with circulating sleeve；Filling set is radial to be provided with upper and lower two-way circulation port and pack hole,
And the circulation port of circulation port and its external relative cycle set penetrates through, pack hole is connected to the flow-guiding channel of packer；It is logical to close set
Shear pin sealed holding is crossed between filling set and circulating sleeve, the gap between upper surface and fishing socket and upper housing is corresponding, lower end
Face is corresponding with the flow-guiding channel of packer；Closing is arranged with radial circulation hole, its circulation port and filling set follows when original state
The circulation port of annular distance and circulating sleeve penetrate through, while seal block upper gap and lower packer flow-guiding channel, close set by
The circulation port of the circulation port of filling set and circulating sleeve is blocked after pressure row and is closed；Ball seat is covered by shear pin fixing seal in filling
Inner wall, the pack hole with the pack hole perforation of filling set is radially provided on ball seat, and ball seat top puts on circulation port sealing with filling
Cooperation；Central tube is connected to filling set lower part, constitutes flow-guiding channel with being connected between the packer of circulating sleeve lower part, central tube
Lower end projection portion is slidingly sealed cooperation with lower contact inner wall；Stage casing forms groove, glue after lower contact top is connect with circulating sleeve
The piston component of cylinder and packing element upper/lower terminal is mounted in groove；The piston component of packing element upper/lower terminal is by piston block and work
Fork clip block forms, wherein upper and lower piston fixture block is connect with circulating sleeve and lower contact plush copper respectively, upper and lower piston block connects under
Head constitutes the sealing cooperation that slides axially；Matched above and below by locking tooth composition axially position between piston block and corresponding piston fixture block
It closes；Corresponding to radial punch hole is respectively equipped in the lower contact of upper and lower piston block, punching hole is communicated with flow-guiding channel.
Said program further comprises：
It further include the rubber plug of umbrella-shaped structure；The packing element uses two-stage structure, is docked by fixture block between two sections of packing elements.
It is equipped with sealing element closing between set and circulating sleeve, filling set；Central tube lower end projection portion and lower contact it
Between be equipped with sealing element.
It is equipped with sealing element in upper and lower piston block inner wall；Ball seat top O-ring stops the upper circulation port of filling set.
The brill plug completion tool external dimensions of exempting from is satisfied among 139.7mm pipe strings.
It is an advantage of the invention that：
1, do not have to mud grouting when setting of casing, save the activity duration, and device inner tube lower part is ball seat, pitching is front upper and lower to be communicated, such as
Complex situations are met, can be recycled with turn on pump.
2, the device inner tube is made of duralumin, hard alumin ium alloy material, if meet complex situations, can not salvage, can descend junk mill drill bit by its
It grinds off, improves the safety and reliability of operation
3, after bruising, while closing set closing circulation port, set interior sealing downlink failure is closed so that inner tube communicates up and down, from
And piston effect when salvaging is eliminated, reduce salvaging power.
Description of the drawings
Fig. 1 is the structural schematic diagram of an embodiment of the present invention；
Fig. 2 is the mating special rubber plug of an embodiment of the present invention.
In figure：1, upper housing；2, closing piece；3, bruising set；4, fishing socket；5, circulating sleeve；6, filling set；7, set is closed；8、
Shear pin；9, ball seat；10, shear pin；11, the packing element of packer；12, inner central tube；13, lower contact；14, rubber plug；15, inlet opening；
16, circulation port；17, pack hole；18, upper punching hole；19, lower punching hole.
Specific implementation mode
In conjunction with Figure of description, the invention will be further described
As shown in Figure 1, a kind of small size exempt from bore plug completion tool include：Mainly by upper housing 1, circulating sleeve 5, closing set 7, packing
The outer tube that device and lower contact 13 form after connecting, and mainly by salvaging:4, bruising set 3, filling set 6, ball seat 9 and central tube 12
Connect the inner tube of composition.Packer is sleeved on outside lower contact 12, mainly by the piston component of packing element 11 and packing element both ends（In figure
It does not mark）Composition.Wherein：
4 outer wall epimere of fishing socket is connected and fixed by closing piece 2 with upper housing 1 and keeps sealing, 4 outer wall hypomere of fishing socket and upper housing
There are gaps, the fishing socket 4 of the gap location to be radially provided with inlet opening 15 between 1.Bruising set 3 is fixed on fishing socket 4 by shear pin
Inner wall, and block the inlet opening 15 that fishing socket 4 is radially provided with.Filling set 6 is connected to the lower end of fishing socket 4, external and circulating sleeve 5
Relatively.Filling set 6 is radial to be provided with upper and lower two-way circulation port 16 and pack hole 17, and circulation port 16 and its external relative cycle
The circulation port perforation of set 5, pack hole 17 are connected to the flow-guiding channel of packer.Set 7 is closed to fill by 8 sealed holding of shear pin
Between set 6 and circulating sleeve 5, the gap between upper surface and fishing socket 4 and upper housing 1 is corresponding, the water conservancy diversion of lower face and packer
Channel corresponds to.It closes set 7 and is equipped with radial circulation hole, the circulation port 16 of its circulation port and filling set 6 and circulating sleeve 5 when original state
Perforation, while the flow-guiding channel for blocking upper gap and lower packer is sealed, it closes after 7 compression downlinks of set and filling is covered into 6 Hes
The circulation port 16 of circulating sleeve 5, which blocks, closes.Ball seat 9 covers 6 inner walls by 10 fixing seal of shear pin in filling, is radially set on ball seat 9
There are the pack hole that the pack hole 17 with filling set 6 penetrates through, 9 top of ball seat to coordinate with the sealing of circulation port 16 on filling set 5.Central tube
12 are connected to 6 lower parts of filling set, constitute flow-guiding channel with being connected between the packer of 5 lower part of circulating sleeve, 12 lower end of central tube
Projection portion is slidingly sealed cooperation with 13 inner wall of lower contact.Stage casing forms groove, glue after 12 top of lower contact is connect with circulating sleeve 5
The piston component of cylinder 11 and packing element upper/lower terminal is mounted in groove；The piston component of packing element upper/lower terminal by piston block and
Piston fixture block forms, wherein upper and lower piston fixture block is connect with circulating sleeve and lower contact plush copper respectively, upper and lower piston block is under
Connector composition, which slides axially, seals cooperation；Above and below axially position is constituted by locking tooth between piston block and corresponding piston fixture block
Cooperation；Corresponding to being respectively equipped with radial punch hole in the lower contact of upper and lower piston block（18/19）, punching hole and flow-guiding channel phase
It is logical.
Above-described embodiment further comprises：
It further include the rubber plug 14 of umbrella-shaped structure（With reference to Fig. 2）；The packing element 11 uses two-stage structure, passes through between two sections of packing elements 11
Fixture block docks.
It is equipped with sealing element closing between set 7 and circulating sleeve 5, filling set 6；It is connect under in 12 lower end projection portion of central tube
Sealing element is equipped between first 13.
It is equipped with sealing element in upper and lower piston block inner wall；9 top of ball seat O-ring stops the circulation port on filling set 6.
The brill plug completion tool external dimensions of exempting from is satisfied among 139.7mm pipe strings.
Note that ball seat internal diameter and sphere outer diameter are less than the internal diameter of bruising set, and sphere outer diameter is less than what ball seat circulation port went out
Internal diameter.
Its operation principle is：When horizontal well completion, 139.7mm completion tools are connected into according to design in completion tubular string,
During tripping in, because of the design of not no blind plate, entire tripping in process can not mud grouting, save the setting of casing time.Pipe string is in place
Afterwards, turn on pump recycles, and after a week, pitching reaches ball seat 9 to cycle, and drilling fluid enters from the pack hole 17 of ball seat 9 and filling set 6 at this time
Packing element 11, packing element 11 is under piston and piston fixture block mating reaction after envelope that packer is swollen, after of continuing rising
Straightening is cut short to shear pin 10,9 downlink of ball seat, is exposed the circulation port on filling set 6, is communicated at this time with casing annulus in casing,
Cycle is established, recycling drilling fluid after a week, starts to cement the well.It after cemented up, is replaced with special rubber plug 14, when rubber plug 14 reaches
When bruising set 3,14 main part of rubber plug drives bruising set 3 to cut pin downlink bruising.At this time liquid enter fishing socket 4 with it is upper outer
Gap between set 1 closes 7 downlinks of set to push, closes the circulation port on circulating sleeve 5, closes 7 interior sealing downlinks of set at this time
Failure eliminates piston force when salvaging to upper and lower unicom, waits after coagulating 4 hours, starts to connect fishing spear salvaging, be beaten with special
When dragging under lance to 4 position of fishing socket, push 20 tons and above carry again, closing piece 2 between fishing socket 4 and upper housing unlocks, inner tube just by
Complete salvage is come.
Claims (5)
1. small size is exempted to bore plug completion tool to include mainly being connected with lower contact by upper housing, circulating sleeve, closing set, packer
The outer tube formed afterwards；The inner tube formed is mainly connected with central tube by fishing socket, bruising set, filling set, ball seat；Wherein packer
It is sleeved on outside lower contact, is mainly made of the piston component of packing element and packing element both ends, it is characterized in that：Salvage drum outer wall epimere with
Upper housing is connected and fixed by closing piece and keeps sealing, and is salvaged between drum outer wall hypomere and upper housing there are gap, the gap location
Fishing socket is radially provided with inlet opening；Bruising set by shear pin is fixed on fishing socket inner wall, and block that fishing socket is radially provided with into
Fluid apertures；Filling set is connected to the lower end of fishing socket, external opposite with circulating sleeve；Filling set is radial to be provided with circulation port and filling
Hole, and the circulation port of circulation port and its external relative cycle set penetrates through, pack hole is connected to the flow-guiding channel of packer；Close set
By shear pin sealed holding between filling set and circulating sleeve, the gap between upper surface and fishing socket and upper housing is corresponding, under
End face is corresponding with the flow-guiding channel of packer；Closing is arranged with radial circulation hole, its circulation port and filling set when original state
The circulation port of circulation port and circulating sleeve penetrates through, while sealing the flow-guiding channel for blocking upper gap and lower packer；Ball seat is logical
It crosses shear pin fixing seal and covers inner wall in filling, be radially provided with the pack hole with the pack hole perforation of filling set on ball seat, on ball seat
Portion puts on circulation port sealing with filling and coordinates；Central tube is connected to filling set lower part, with the packer for being connected to circulating sleeve lower part
Between constitute flow-guiding channel, central tube lower end projection portion is slidingly sealed cooperation with lower contact inner wall；Lower contact top and cycle
The piston component of formation groove in stage casing after set connection, packing element and packing element upper/lower terminal is mounted in groove；Packing element upper/lower terminal
Piston component be made of piston block and piston fixture block, wherein upper and lower piston fixture block respectively with circulating sleeve and lower contact plush copper
Connection, upper and lower piston block slide axially with lower contact composition and seal cooperation；Upper and lower piston block and corresponding piston fixture block it
Between pass through lock tooth constitute axially position cooperation；Corresponding to being respectively equipped with radial punch hole, punching press in the lower contact of upper and lower piston block
Hole is communicated with flow-guiding channel.
2. small size according to claim 1 is exempted to bore plug completion tool, it is characterized in that：It further include the rubber plug of umbrella-shaped structure；
The packing element uses two-stage structure, is docked by fixture block between two sections of packing elements.
3. small size according to claim 1 or 2 is exempted to bore plug completion tool, it is characterized in that：Close set with circulating sleeve, fill
It fills out between set equipped with sealing element；Sealing element is equipped between central tube lower end projection portion and lower contact.
4. small size according to claim 1 or 2 is exempted to bore plug completion tool, it is characterized in that：It is equal in upper and lower piston block inner wall
Equipped with sealing element；Ball seat top O-ring stops the upper circulation port of filling set.
5. small size according to claim 1 or 2 is exempted to bore plug completion tool, it is characterized in that：It is described to exempt to bore plug completion tool
External dimensions is satisfied among 139.7mm pipe strings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710176824.8A CN108625817B (en) | 2017-03-23 | Small-size drilling-plug-free well completion tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710176824.8A CN108625817B (en) | 2017-03-23 | Small-size drilling-plug-free well completion tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108625817A true CN108625817A (en) | 2018-10-09 |
| CN108625817B CN108625817B (en) | 2024-06-28 |
Family
ID=
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111005701A (en) * | 2020-01-14 | 2020-04-14 | 胜利油田利丰稠油技术开发有限公司 | Fishing and fast drilling composite material well fixing and completing tool |
| CN114320218A (en) * | 2020-09-30 | 2022-04-12 | 中国石油天然气股份有限公司 | Drilling-plug-free well cementing device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6382319B1 (en) * | 1998-07-22 | 2002-05-07 | Baker Hughes, Inc. | Method and apparatus for open hole gravel packing |
| CN101725330A (en) * | 2009-11-03 | 2010-06-09 | 山东普瑞思德石油技术有限公司 | Drilling-and-plugging-free well fixing method and tool |
| CN202125275U (en) * | 2011-05-18 | 2012-01-25 | 中国石油化工集团公司 | Drilling-plug-free tool for top cementing of horizontal well sieve tube |
| CN102337853A (en) * | 2011-08-31 | 2012-02-01 | 程显达 | Circulating drilling-free blind plate cementing device |
| CN102787824A (en) * | 2011-05-18 | 2012-11-21 | 中国石油化工集团公司 | Tool and method for injecting cement into top of horizontal well screen pipe without drilling and plugging |
| CN104121001A (en) * | 2014-07-31 | 2014-10-29 | 于世江 | Drilling-free cement injecting device for horizontal well |
| CN104343413A (en) * | 2013-08-09 | 2015-02-11 | 胜利油田胜机石油装备有限公司 | Top well cementation method and device for self-communicated double-process screen pipe |
| CN104895523A (en) * | 2015-05-12 | 2015-09-09 | 中国石油天然气集团公司 | Drilling-plug-free stage cementing device for full hole completion |
| CN206769870U (en) * | 2017-03-23 | 2017-12-19 | 中石化石油工程技术服务有限公司 | Small size is exempted to bore plug completion tool |
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6382319B1 (en) * | 1998-07-22 | 2002-05-07 | Baker Hughes, Inc. | Method and apparatus for open hole gravel packing |
| CN101725330A (en) * | 2009-11-03 | 2010-06-09 | 山东普瑞思德石油技术有限公司 | Drilling-and-plugging-free well fixing method and tool |
| CN202125275U (en) * | 2011-05-18 | 2012-01-25 | 中国石油化工集团公司 | Drilling-plug-free tool for top cementing of horizontal well sieve tube |
| CN102787824A (en) * | 2011-05-18 | 2012-11-21 | 中国石油化工集团公司 | Tool and method for injecting cement into top of horizontal well screen pipe without drilling and plugging |
| CN102337853A (en) * | 2011-08-31 | 2012-02-01 | 程显达 | Circulating drilling-free blind plate cementing device |
| CN104343413A (en) * | 2013-08-09 | 2015-02-11 | 胜利油田胜机石油装备有限公司 | Top well cementation method and device for self-communicated double-process screen pipe |
| CN104121001A (en) * | 2014-07-31 | 2014-10-29 | 于世江 | Drilling-free cement injecting device for horizontal well |
| CN104895523A (en) * | 2015-05-12 | 2015-09-09 | 中国石油天然气集团公司 | Drilling-plug-free stage cementing device for full hole completion |
| CN206769870U (en) * | 2017-03-23 | 2017-12-19 | 中石化石油工程技术服务有限公司 | Small size is exempted to bore plug completion tool |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111005701A (en) * | 2020-01-14 | 2020-04-14 | 胜利油田利丰稠油技术开发有限公司 | Fishing and fast drilling composite material well fixing and completing tool |
| CN114320218A (en) * | 2020-09-30 | 2022-04-12 | 中国石油天然气股份有限公司 | Drilling-plug-free well cementing device |
| CN114320218B (en) * | 2020-09-30 | 2023-08-22 | 中国石油天然气股份有限公司 | Drilling-plug-free well cementation device |
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