CN101403280A - Six-stage branch well branching manufacturing and branching system tool - Google Patents
Six-stage branch well branching manufacturing and branching system tool Download PDFInfo
- Publication number
- CN101403280A CN101403280A CNA200810228396XA CN200810228396A CN101403280A CN 101403280 A CN101403280 A CN 101403280A CN A200810228396X A CNA200810228396X A CN A200810228396XA CN 200810228396 A CN200810228396 A CN 200810228396A CN 101403280 A CN101403280 A CN 101403280A
- Authority
- CN
- China
- Prior art keywords
- hollow
- main shaft
- pipe
- steel tube
- steel pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 126
- 239000010959 steel Substances 0.000 claims abstract description 126
- 238000012856 packing Methods 0.000 claims description 18
- 210000002445 nipple Anatomy 0.000 claims description 15
- 238000005987 sulfurization reaction Methods 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 238000010079 rubber tapping Methods 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910001018 Cast iron Inorganic materials 0.000 claims description 3
- 239000003082 abrasive agent Substances 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 210000000664 rectum Anatomy 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 7
- 238000005553 drilling Methods 0.000 abstract description 3
- 239000003208 petroleum Substances 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 16
- 239000000725 suspension Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Images
Landscapes
- Earth Drilling (AREA)
Abstract
A six-stage branching well branching manufacture and branching system tool for connecting a main well and a branch well hole window in the operation of an oil drilling branch well comprises a sleeve body, a pre-perforated hollow sleeve, a hollow slope guide, a main well upper end hollow steel pipe, a branch well hollow steel pipe, a main well lower end pre-formed steel pipe, a steel pipe connecting intersection joint, a drillable short section, an expansion pipe, an expansion cone and a high-temperature-resistant rubber sleeve. The sleeve body and the pre-perforated sleeve are both hollow sleeves, the hollow slope guider is a hollow steel pipe, the upper end of the hollow slope guider is provided with an inclined plane, and 2-5 pre-vulcanized high-temperature-resistant rubber cylinders are arranged in the hollow slope guider. The tool solves the problems that the pressure of a window lap joint part is inconsistent with the pressure of a well bore in the well completion process of a branch well in the prior art, and the stress of the window lap joint part is weak. The tool can be widely applied to the operation of the branch well of the petroleum drilling.
Description
Technical field:
The present invention relates to a kind of six-stage branch well bifurcation production and the bifurcation system tool of main shaft in a kind of oil drilling bifurcated well operations, branch well hole window place connection usefulness.
Background technology:
The key technology of Multilateral Wells is how branch well hole and main borehole realize that at the window place interface supports, and a sealing joint and a well are reentried.The present pre-drilled cavity sleeve pipe that adopts, the connection at window places such as sleeve pipe tieback and casing sidetracking is the overlapping mode of multitube, this overlapping technology can not guarantee the integrality of window pressure, the support of interface also is a most weak stressed part in the whole system instrument, as level Four pre-drilled cavity sleeve pipe Multilateral Wells, its completion system instrument is by adopting the down-hole overlap joint to connecting the stressed weakness of branch's crotch; It is consistent with well casing pressure to exist gap, lap-joint's pressure to realize during Multilateral Wells completion tool overlap joint.In the prior art as: the patent No. 200510042070.4, the Multilateral Wells of windowing in advance completion system and method adopt the mode of windowing in advance to connect main borehole and branch well hole; The function that reenters that main borehole and Multilateral Wells reentry fairlead realization main shaft and branch well hole are set in the window connector that adopts in patent No. 200510136587.X branch well window linkage and attaching method thereof; And the connection main borehole and the branch well hole that adopt sleeve pipe tieback and casing sidetracking connected mode; The window hook-type hanger that United States Patent (USP) 5944108 adopted etc. all has a common characteristic: the window place connects the connected mode that is conduit, the support of interface is a most weak stressed part in the whole system instrument, Multilateral Wells completion tool overlap joint can't be eliminated the slit simultaneously, and lap-joint's pressure can't be realized consistent with wellbore pressure
Summary of the invention:
The purpose of this invention is to provide a kind of six-stage branch well bifurcation production and bifurcation system tool, it is inconsistent that this instrument has solved the Multilateral Wells that exists in the prior art window overlapping part and wellbore pressure in the completion process, and window lap-joint exists the problem of stressed weakness.
The technical solution adopted for the present invention to solve the technical problems is: on the basis of existing Multilateral Wells completion, the pressure that adopts the preformed multitube to conflux instrument and expand between suspension sealing system instrument realization window lap-joint and pit shaft is complete, main shaft and Multilateral Wells diameter still are consistent after the completion, and its diameter loss only is 2 and is split into thickness of pipe wall in advance; The present invention is made up of three parts: first is made up of the Multilateral Wells completion tubular column of band pre-drilled cavity sleeve pipe and hollow wedge deflection tool, vulcanizes part in pre-drilled cavity sleeve pipe and hollow wedge deflection tool are preset; Second portion is made up of preformed three manifold stream instruments, by pressure molding technique main minute piping tool of preformed is restored to the original state in the down-hole after going into well; Third part hangs the sealing system instrument by expanding to be formed, and by head shoot or input mark plug, makes expansion tube hang sealing system and forms partial high pressure, finishing expansion and hanging sealing; Six-stage branch well bifurcation production and bifurcation system tool, by sleeve body, pre-drilled cavity sleeve pipe, hollow wedge deflection tool, main shaft upper end hollow steel tube, Multilateral Wells hollow steel tube, main shaft lower end hollow steel tube, Multilateral Wells, main shaft lower end preformed steel pipe, steel pipe connect the seam that crosses, can bore pipe nipple, expansion tube, expansion cone, high temperature resistant packing element composition.Sleeve body, pre-drilled cavity sleeve pipe are hollow sleeve, hollow wedge deflection tool is a hollow steel tube, its upper end is provided with the high temperature resistant packing element of 2-5 place presulfurization in its pipe of inclined-plane, pre-drilled cavity casing pipe hole opening place is oval, oval major diameter is suitable with hollow wedge deflection tool inclined-plane, the minor axis diameter is slightly less than the perforate run through casing size, is provided with high temperature resistant sulfuration packing element 2-5 in its perforate lower end pipe; Hollow steel tube be with A3,5# steel, 10# steel, 1Cr18Ni9T low carbon stainless steel with good plasticity make, main shaft hollow steel tube upper and lower side is one, the centre is provided with pre-opening part, ovalize, the minor axis diameter is a pipe diameter, the major and minor axis ratio is consistent with pre-drilled cavity casing pipe hole opening place, two ends up and down with major axis are the inclined-plane, same body are made consistent with hollow wedge deflection tool bevel angle; It is consistent with hollow wedge deflection tool bevel angle that Multilateral Wells hollow steel tube upper end is provided with a bevel angle, and length is slightly larger than wedge deflection tool length, and ready-made main shaft upper and lower side hollow steel tube pre-drilled cavity place and Multilateral Wells steel pipe inclined-plane is integrally welded; Main shaft upper end hollow steel tube is provided with screw thread, and the length of its lower end steel pipe is 2-3 times of Multilateral Wells steel pipe; Multilateral Wells hollow steel tube, the main shaft lower end hollow steel tube of the three manifolds stream tubing string that welding is good are handled again, be prefabricated into the tubing string that has two special pipes always, be shaped as Multilateral Wells preformed steel pipe after above-mentioned two steel pipes are prefabricated, main shaft lower end preformed steel pipe, Multilateral Wells preformed steel tube section diameter maximum still is a diameter of steel tube, simultaneously less than the pre-drilled cavity run through casing size; Main shaft lower end preformed steel pipe, the strong point of diameter of section is less than self diameter, simultaneously also less than pre-drilled cavity casing pipe hole opening place ellipse short shaft diameter.It is consistent with main shaft upper end hollow steel tube that Multilateral Wells preformed steel pipe, main shaft lower end preformed steel pipe stack diameter.Make to bore with aluminium or cast iron and be provided with fluid course in the pipe nipple, be provided with ball seat or mark obturating plug in the passage, be provided with screw thread outward, make expansion tube with stainless steel or plasticity good material, expand into the expansion chamber that to put expansion cone in advance, the lower end is provided with screw thread, and it is threaded with boring pipe nipple, main shaft upper end hollow steel tube respectively, and sulfuration has high temperature resistant packing element on the expansion tube; High-abrasive material with high rigidity is made expansion cone, and the upper end is provided with a conical surface, and the centre is provided with fluid course, can pass through ball or plunger.
Workflow and work progress: after will have that the sulfuration hollow wedge deflection tool of packing element and pre-drilled cavity sleeve pipe are formed in the band now three grades or level Four Multilateral Wells completion tubular column are installed, with the main shaft upper end hollow steel tube of performing six-grade branch well bifurcation production and bifurcation system tool, Multilateral Wells hollow steel tube.Main shaft lower end hollow steel tube, the Multilateral Wells hollow light tube, main shaft lower end hollow steel tube and expansion tube hang the bored pipe nipple in the sealing system instrument, expansion tube, expansion cone, in the high temperature resistant packing element lower going-into-well, utilize Multilateral Wells preformed steel pipe, the size of main shaft lower end preformed diameter of steel tube and length difference, the Multilateral Wells preformed steel pipe nature in big footpath enters branch well hole along the pre-drilled cavity sleeve pipe, and the main shaft lower end preformed steel pipe of path can only pass in the hollow wedge deflection tool that the pre-drilled cavity sleeve pipe directly enters main borehole, by pressure molding technique the big small diameter tube of preformed is restored to the original state in the down-hole afterwards, respectively with hollow wedge deflection tool, the interior sulfuration packing element of establishing in the pre-drilled cavity sleeve pipe sticks to one, and reaches the purpose with the branch well hole sealed suspension; At last by pitching or input mark plug, fall in the logical ball seat or mark obturating plug that can bore on the pipe nipple internal channel at hydraulic action, expansion tube hung the expansion cone in the sealing system and can bore pipe nipple and formed partial high pressure this moment, expansion tube surpasses yield limit, up under the promotion of expansion cone, finish with the expansion of main borehole and hang sealing.Complete consistent with wellbore pressure guaranteed between main borehole and each Multilateral Wells in whole system instrument acting in conjunction.Other plants form, can be without packing element, and with the soft metal or directly directly reach the suspension sealing purpose with expansion tube, Multilateral Wells hollow steel tube, main shaft lower end hollow steel tube.
The invention has the beneficial effects as follows, simple in structure, be convenient to use, have the interference that reduces between Multilateral Wells, further improve the production capacity effect; Pressure integrity has been improved at the place at contact, reduces the loss of running system pressure; Provide the waterpower integrality at the contact place, improve the tube wall slickness, reduce the wastage; Dominant eye well and branch well hole diameter still are consistent after the completion, and its diameter loss only is 2 and is split into thickness of pipe wall in advance.
Description of drawings:
Fig. 1 is the Multilateral Wells completion tubular column structural representation of band pre-drilled cavity sleeve pipe and hollow wedge deflection tool.
Fig. 2 is three a manifolds stream tubing string preformed pre-structure schematic diagram.
Fig. 3 is the three manifolds stream tubing string after the preformed and the suspension sealing tubing string syndeton schematic diagram that expands.
Fig. 4 presets to section A-A sectional drawing behind the type for branch's tubing string that confluxes.
Fig. 5 is the preformed three manifolds stream tubing string and the suspension sealing tubing string scheme of installation that expands.
Fig. 6 is the three manifolds stream tubing string after the pressure forming and the suspension sealing back completion tubular column structural representation that expands.
Among the figure 1, sleeve body, 2, the pre-drilled cavity hollow sleeve, 3, hollow wedge deflection tool, 4, main shaft upper end hollow steel tube, 5, Multilateral Wells hollow steel tube, 5.1, Multilateral Wells preformed steel pipe, 6, main shaft lower end hollow steel tube, 6.1 main shaft lower end preformed steel pipe, 7, steel pipe connects the seam that crosses, and 8, can bore pipe nipple, 9, expansion tube, 10, expansion cone, 11, high temperature resistant packing element.
The specific embodiment:
In the accompanying drawings, six-stage branch well bifurcation production and bifurcation system tool, mainly form by three parts: the one, form by the Multilateral Wells completion tubular column of band pre-drilled cavity sleeve pipe and hollow wedge deflection tool; The 2nd, form by preformed three manifold stream instruments; The 3rd, hang the sealing system instrument by expanding and form, by the head shoot or the plug of submitting a tender, make expansion tube hang sealing system and form partial high pressure, finishing expands hangs sealing; This instrument is by sleeve body 1, and pre-drilled cavity sleeve pipe 2, hollow wedge deflection tool 3, main shaft upper end hollow steel tube 4, Multilateral Wells hollow steel tube 5, Multilateral Wells preformed steel pipe 5.1, main shaft lower end hollow steel tube 6, main shaft lower end preformed steel pipe 6.1, steel pipe connect the seam 7 that crosses, can bore pipe nipple 8, expansion tube 9, expansion cone 10, high temperature resistant packing element 11 are formed.
In Fig. 1, sleeve body 1, pre-drilled cavity hollow sleeve 2 are hollow sleeve, hollow wedge deflection tool 3 is a hollow steel tube, its upper end is provided with the inclined-plane, 2-5 the high temperature resistant packing element 11 of presulfurization arranged in its pipe, and pre-drilled cavity hollow sleeve 2 tappings are oval, and oval major diameter is suitable with hollow wedge deflection tool 3 inclined-planes, the minor axis diameter is slightly less than the perforate run through casing size, is preset with high temperature resistant sulfuration packing element 2-5 in its perforate lower end pipe.
In Fig. 2, hollow steel tube is to make with A3,5# steel, 10# steel, 1Cr18Ni9T low carbon stainless steel with good plasticity, main shaft upper end hollow steel tube 4 and main shaft lower end hollow steel tube 6 are one, the centre is provided with pre-opening part, ovalize, minor axis diameter are pipe diameter, and the major and minor axis ratio is consistent with pre-drilled cavity hollow sleeve tapping, two ends up and down with major axis are the inclined-plane, should make consistent with hollow wedge deflection tool 3 bevel angles by same body; It is consistent with hollow wedge deflection tool 3 bevel angles that Multilateral Wells hollow steel tube 5 upper ends are provided with a bevel angle, and length is slightly larger than hollow wedge deflection tool 3 length, and ready-made main shaft upper and lower side hollow steel tube 4,6 pre-drilled cavity places and Multilateral Wells steel pipe 5 inclined-planes are integrally welded; Main shaft upper end hollow steel tube 4 is provided with screw thread, and the length of its lower end steel pipe 6 is 2-3 times of Multilateral Wells steel pipe 5.
In Fig. 3, Multilateral Wells hollow steel tube 5, the main shaft lower end hollow steel tube 6 of the three manifolds stream tubing string that welding is good are handled again, be prefabricated into the tubing string that has two special pipes always, make to bore in the pipe nipple 8 with aluminium or cast iron and be provided with fluid course, be provided with ball seat or mark obturating plug in the passage, be provided with screw thread outward, make expansion tube 9 with stainless steel or plasticity good material, expand into the expansion chamber that to put expansion cone in advance, the lower end is provided with screw thread, it is threaded with boring pipe nipple 8, main shaft upper end hollow steel tube 4 respectively, and sulfuration has high temperature resistant packing element 11 on the expansion tube 9; Make expansion cone 10 with the high-abrasive material of high rigidity, the upper end is provided with a conical surface, and the centre is provided with fluid course, can pass through ball or plunger; In the bored pipe nipple 8 in the main shaft upper end hollow steel tube 4, Multilateral Wells hollow steel tube 5, main shaft lower end hollow steel tube 6 and the expansion suspension sealing system that preset in the moulding Multilateral Wells three manifold streaming system instruments, expansion tube 9, expansion cone 10, high temperature resistant packing element 11 lower going-into-wells.
In Fig. 4, Multilateral Wells hollow steel tube 5, the 6 pre-postpones of main shaft lower end hollow steel tube are shaped as Multilateral Wells preformed steel pipe 5.1, main shaft lower end preformed steel pipe 6.1, Multilateral Wells preformed steel pipe 5.1 diameter of section maximums still are diameter of steel tube, simultaneously less than pre-drilled cavity sleeve pipe 2 latus rectums; Main shaft lower end preformed steel pipe 6.1, the strong point of diameter of section is less than self diameter, simultaneously also less than pre-drilled cavity casing pipe hole opening place ellipse short shaft diameter; It is consistent with main shaft upper end hollow steel tube 4 that Multilateral Wells preformed steel pipe 5.1, main shaft lower end preformed steel pipe 6.1 stack diameter.
In Fig. 5, with Multilateral Wells preformed steel pipe 5.1, main shaft lower end preformed steel pipe 6.1, size and length difference according to diameter, Multilateral Wells preformed steel pipe 5.1 nature of large-diameter pipe enters branch well hole along pre-drilled cavity sleeve pipe 2, and the main shaft lower end preformation shaped steel 6.1 of path can only pass in the hollow wedge deflection tool that the perforate sleeve pipe directly enters main borehole.
In Fig. 6,1, sleeve body, 2, the pre-drilled cavity hollow sleeve, 3, hollow wedge deflection tool, 4, main shaft upper end hollow steel tube, 5.1, Multilateral Wells preformed steel pipe, 6.1 main shaft lower end preformed steel pipes, 10, expansion cone.By pressure or forming technique the big small diameter tube of preformed is restored to the original state in the down-hole.
Claims (2)
1, a kind of six-stage branch well bifurcation production and bifurcation system tool, by sleeve body (1), pre-drilled cavity hollow sleeve (2), hollow wedge deflection tool (3), main shaft upper end hollow steel tube (4), Multilateral Wells hollow steel tube (5), Multilateral Wells preformed steel pipe (5.1), main shaft lower end hollow steel tube (6), main shaft lower end preformed steel pipe (6.1), steel pipe connect the seam (7) that crosses, can bore pipe nipple (8), expansion tube (9), expansion cone (10), high temperature resistant packing element (11) composition; It is characterized in that, sleeve body (1), pre-drilled cavity hollow sleeve (2) are hollow sleeve, hollow wedge deflection tool (3) is a hollow steel tube, its upper end is provided with the inclined-plane, be provided with 2-5 the high temperature resistant packing element of presulfurization (11) in its pipe, pre-drilled cavity hollow sleeve (2) tapping is oval, and the transverse diameter is suitable with hollow wedge deflection tool (3) inclined-plane, the minor axis diameter is slightly less than the perforate run through casing size, is provided with high temperature resistant sulfuration packing element 2-5 in its perforate lower end pipe; Main shaft upper end hollow steel tube (4) and main shaft lower end hollow steel tube (6) are one, the centre is provided with pre-opening part, ovalize, the minor axis diameter is a pipe diameter, the major and minor axis ratio is consistent with pre-drilled cavity hollow sleeve (2) tapping, two ends up and down with major axis are the inclined-plane, should make consistent with hollow wedge deflection tool (3) bevel angle by same body; It is consistent with hollow wedge deflection tool (3) bevel angle that Multilateral Wells hollow steel tube (5) upper end is provided with a bevel angle, length is slightly larger than hollow wedge deflection tool (3) length, and ready-made main shaft upper end hollow steel tube (4), main shaft lower end hollow steel tube (6) pre-drilled cavity place and Multilateral Wells hollow steel tube (5) inclined-plane is integrally welded; Main shaft upper end hollow steel tube (4) is provided with screw thread, and the length of main shaft lower end hollow steel tube (6) is 2-3 times of Multilateral Wells hollow steel tube (5); The three manifolds stream tubing string that welding is good is handled again, be prefabricated into the tubing string that has two special pipes always, can bore in the pipe nipple (8) and be provided with fluid course, be provided with ball seat or mark obturating plug in the passage, be provided with screw thread outward, expansion tube (9) expand into the expansion chamber that can put expansion cone in advance, and the lower end is provided with screw thread, it is threaded with boring pipe nipple (8), main shaft upper end hollow steel tube (4) respectively, and expansion tube (9) is gone up sulfuration high temperature resistant packing element (11); Expansion cone (10) upper end is provided with a conical surface, and the centre is provided with fluid course, can pass through ball or plunger; Be shaped as Multilateral Wells preformed steel pipe (5.1), main shaft lower end preformed steel pipe (6.1) with Multilateral Wells hollow steel tube (5), main shaft lower end hollow steel tube (6) after prefabricated, Multilateral Wells preformed steel pipe (5.1) diameter of section maximum still is a diameter of steel tube, simultaneously less than pre-drilled cavity sleeve pipe (2) latus rectum; Main shaft lower end preformed steel pipe (6.1), the strong point of diameter of section is less than self diameter, simultaneously also less than pre-drilled cavity hollow sleeve (2) tapping ellipse short shaft diameter; Multilateral Wells preformed steel pipe (5.1), main shaft lower end preformed steel pipe (6.1) diameter and the main shaft upper end hollow steel tube (4) that is superimposed is consistent; With Multilateral Wells preformed steel pipe (5.1), main shaft lower end preformed steel pipe (6.1), size and length difference according to Multilateral Wells preformed steel pipe, main shaft lower end preformed diameter of steel tube, large-diameter pipe Multilateral Wells preformed steel pipe (5.1) nature enters branch well hole along pre-drilled cavity hollow sleeve (2), and small diameter tube main shaft lower end preformed steel pipe (6.1) can only pass in the hollow wedge deflection tool (3) that the pre-drilled cavity sleeve pipe directly enters main borehole.
2, six-stage branch well bifurcation production according to claim 1 and bifurcation system tool is characterized in that, hollow steel tube is to make with A3,5# steel, 10# steel, 1Cr18Ni9T low carbon stainless steel with good plasticity; Make with aluminium or cast iron and can bore pipe nipple (8); Make expansion tube (9) with stainless steel or plastic material; Make expansion cone (10) with the high-abrasive material of high rigidity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810228396XA CN101403280A (en) | 2008-10-30 | 2008-10-30 | Six-stage branch well branching manufacturing and branching system tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810228396XA CN101403280A (en) | 2008-10-30 | 2008-10-30 | Six-stage branch well branching manufacturing and branching system tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101403280A true CN101403280A (en) | 2009-04-08 |
Family
ID=40537413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200810228396XA Pending CN101403280A (en) | 2008-10-30 | 2008-10-30 | Six-stage branch well branching manufacturing and branching system tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101403280A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182403A (en) * | 2011-04-28 | 2011-09-14 | 王萍萍 | Drilling type well completion technology for fishbone branch borehole |
| CN102206991A (en) * | 2010-03-31 | 2011-10-05 | 哈利伯顿能源服务公司 | Well assembly with millable member in opening |
| CN101718170B (en) * | 2009-11-17 | 2013-11-06 | 中国石油集团长城钻探工程有限公司 | Preformed six-stage branch well system tool |
| CN105358789A (en) * | 2013-07-25 | 2016-02-24 | 哈利伯顿能源服务公司 | Expandable and variable-length bullnose assembly for use with a wellbore deflector assembly |
| CN104453776B (en) * | 2014-11-14 | 2017-01-18 | 中国石油集团长城钻探工程有限公司 | Six-level branching well built-in window sealing well completion method |
| CN107152268A (en) * | 2017-07-13 | 2017-09-12 | 中国石油集团长城钻探工程有限公司 | A kind of branch's well construction and its formation process |
| CN109614750A (en) * | 2018-12-28 | 2019-04-12 | 中民筑友科技投资有限公司 | Fashioned iron tube expansion automatic generation method, device and equipment based on assembled architecture |
| CN115370318A (en) * | 2021-05-17 | 2022-11-22 | 中石化石油工程技术服务有限公司 | Well drilling and completion method for re-entering of each branch well bore of branch well |
-
2008
- 2008-10-30 CN CNA200810228396XA patent/CN101403280A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718170B (en) * | 2009-11-17 | 2013-11-06 | 中国石油集团长城钻探工程有限公司 | Preformed six-stage branch well system tool |
| CN102206991A (en) * | 2010-03-31 | 2011-10-05 | 哈利伯顿能源服务公司 | Well assembly with millable member in opening |
| CN102206991B (en) * | 2010-03-31 | 2015-04-22 | 哈利伯顿能源服务公司 | Well assembly with millable member in opening |
| CN102182403A (en) * | 2011-04-28 | 2011-09-14 | 王萍萍 | Drilling type well completion technology for fishbone branch borehole |
| CN102182403B (en) * | 2011-04-28 | 2016-06-29 | 王萍萍 | Drilling type well completion technology for fishbone branch borehole |
| CN105358789A (en) * | 2013-07-25 | 2016-02-24 | 哈利伯顿能源服务公司 | Expandable and variable-length bullnose assembly for use with a wellbore deflector assembly |
| CN105358789B (en) * | 2013-07-25 | 2017-06-30 | 哈利伯顿能源服务公司 | The cylindrical angular component of inflatable and variable-length being used together with well bore deflection device assembly |
| CN104453776B (en) * | 2014-11-14 | 2017-01-18 | 中国石油集团长城钻探工程有限公司 | Six-level branching well built-in window sealing well completion method |
| CN107152268A (en) * | 2017-07-13 | 2017-09-12 | 中国石油集团长城钻探工程有限公司 | A kind of branch's well construction and its formation process |
| CN109614750A (en) * | 2018-12-28 | 2019-04-12 | 中民筑友科技投资有限公司 | Fashioned iron tube expansion automatic generation method, device and equipment based on assembled architecture |
| CN115370318A (en) * | 2021-05-17 | 2022-11-22 | 中石化石油工程技术服务有限公司 | Well drilling and completion method for re-entering of each branch well bore of branch well |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101403280A (en) | Six-stage branch well branching manufacturing and branching system tool | |
| CN101343991B (en) | Well completion method of single inner diameter well completion structure | |
| CN202380987U (en) | Internal-external thread connector of thin-wall expansion pipe | |
| CN109881692B (en) | Preassembled dewatering well | |
| CN1265172A (en) | Creating zonal isolation between interior and exterior of well system | |
| CN101906946A (en) | Hydraulic expansion-type rotary liner hanger | |
| CN103089185A (en) | Operating device and method for constant-borehole-diameter expandable casing | |
| CN101432499B (en) | Gas tight tubular joint or connection | |
| CN103031847B (en) | Reducing overlap joint combined type orifice pipe grouting method | |
| CN202300266U (en) | Operation device for expansion casing with equal borehole diameter | |
| CN109162703B (en) | Super-long soft coal seam drilling multi-stage pressure sealing pressure measuring device and method | |
| CN201705252U (en) | Hydraulic expansion type rotating liner hanger | |
| CN201292762Y (en) | Six-stage branch well branch producing and branch system tool | |
| CN206000501U (en) | A kind of suspension type self-expanding blocks tubing string | |
| CN110454207B (en) | Anchor pumping integrated method for deep coal seam mining floor rock roadway | |
| CN112554839A (en) | Integral hose non-plug-in type gas hole packer and hole packing method thereof | |
| CN200946473Y (en) | Expanding suspension supporting and placing device | |
| CN110952949A (en) | Soluble plugging tool for tail end of velocity string and using method thereof | |
| CN209261540U (en) | A kind of branch's well construction | |
| CN101718170B (en) | Preformed six-stage branch well system tool | |
| CN201241646Y (en) | Borehole wall restoring pipe column combining body expansion casing tube and corrugated tube | |
| CN211666685U (en) | Soluble plugging tool for tail end of speed pipe column | |
| CN113446039A (en) | Grouting type variable cross-section anchor pipe and soft rock tunnel surrounding rock grouting reinforcement construction method | |
| CN206769809U (en) | A kind of eccentric location device suitable for radial bore | |
| CN108729859B (en) | Injection self-advancing type multi-branch small borehole completion tool and operation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090408 |