CN201810204U - Preformed six-stage multilateral well system tool - Google Patents
Preformed six-stage multilateral well system tool Download PDFInfo
- Publication number
- CN201810204U CN201810204U CN2009202481528U CN200920248152U CN201810204U CN 201810204 U CN201810204 U CN 201810204U CN 2009202481528 U CN2009202481528 U CN 2009202481528U CN 200920248152 U CN200920248152 U CN 200920248152U CN 201810204 U CN201810204 U CN 201810204U
- Authority
- CN
- China
- Prior art keywords
- branch
- supporting leg
- main
- expansion
- 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.)
- Expired - Fee Related
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 76
- 238000007789 sealing Methods 0.000 claims abstract description 43
- 229910052742 iron Inorganic materials 0.000 claims abstract description 38
- 210000002414 leg Anatomy 0.000 claims description 60
- 210000002445 nipple Anatomy 0.000 claims description 44
- 210000001217 buttock Anatomy 0.000 claims description 10
- 210000000664 rectum Anatomy 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 230000000295 complement effect Effects 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000005553 drilling Methods 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 3
- 230000003628 erosive effect Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000010008 shearing Methods 0.000 claims description 3
- 229910001256 stainless steel alloy Inorganic materials 0.000 claims description 3
- 239000003208 petroleum Substances 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract 1
- 239000007858 starting material Substances 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model provides a preformed six-stage multilateral well system tool used for well completion in petroleum industry, which comprises a tool feeding pup joint, a main shaft expansion pup joint, a central rod, an expansion cone, an expansion launching chamber, a load-carrying receptacle, a pipe plug, a liquid through hole, an lining pipe, a sliding chute, a sliding key, a sliding positioning cap, an iron trouser upper waist part, an iron trouser seat part, a trouser leg junction part, an auxiliary leg guide pipe, a main leg, an auxiliary leg, an auxiliary leg outlet corrector, an auxiliary leg starter, an upper positioning sleeve, an lateral shaft, a basic bushing, and an expansion slotting tube with rubber cover. By adopting the expandable slotting tube preformed reversed V-shaped iron trouser legging mechanism, the main shaft expansion suspended sealing system tool, the feeding mechanism and the fixation and suspension positioning mechanism, the tool achieves full pressure between the end overlap-joint area and the well-shaft, and ensures the whole-shaft seal of the main shaft and the lateral shaft. The tool solves the problems in the prior art that the end connection areas of the lateral shaft bore and the main shaft bore are both multi-tube overlap joint structure, resulting in the joint seams and the unequal pressure of the overlap joint area and the well-shaft. The preformed six-stage multilateral well system tool is applied to well completion in petroleum industry.
Description
Technical field:
The utility model relates to a kind of performing six-grade branch well system tool that petroleum oil well completion is used.
Background technology:
The key technology of Multilateral Wells is how Multilateral Wells and main shaft realize interface support, sealing joint and a well reentry in the window junction.The present pre-drilled cavity sleeve pipe that adopts, three grades of forming of the sleeve pipe tieback and the overlap joint of multitube between the sleeve pipe of windowing, level Four multi-bottom branch well provides connectedness and accessibility, but, this overlapping mode can not guarantee the integrality of window pressure, no matter many perfections are all gapped for the pre-drilled cavity sleeve pipe of branch and the coupling of main hole, can not realize consistent with wellbore pressure, the mechanical support of interface also is a most weak stressed part in the whole system instrument, as patent: 2005100420704, 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 among the 200510136587x, 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 connecting mode; The window hook-type hanger that United States Patent (USP) 5944108 adopted etc. all has a common characteristic, the window place connects the overlapping mode that is multitube, the support of interface is a most weak stressed part in the whole system instrument, the Multilateral Wells completion tool of this overlap joint can't be removed the slit, and overlapping part pressure can't be realized consistent with wellbore pressure.
The utility model content:
The purpose of this utility model provides a kind of performing six-grade branch well system tool, this instrument solved exist in the prior art can't remove the slit, the inconsistent problem of overlapping part and wellbore pressure owing to be the overlap joint of multitube in branch well hole and main borehole window connection place.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of performing six-grade branch well system tool, by the running tool pipe nipple, main hole Expansion sealing pipe nipple, center-pole, expansion cone, the expansion emission cavity, the load socket, plug, liquid-through hole, internal lining pipe, sliding tray, slide key, directed cap slides, waist on the iron trousers, iron trousers buttocks, two trousers prop up the joint portion, branch's guiding tube, main supporting leg, divide supporting leg, the branch outlet wiper block, branch's introduction, last positioning sleeve, branch's pit shaft, the basis sleeve pipe, attached gum cover expansion slot tubing string is formed, performing six-grade branch well system tool is on the basis of existing Multilateral Wells completion system instrument, adopt the humanoid iron trousers of inflatable slot pipe preformed branch, main hole expands and hangs the sealing system instrument, send into mechanism, sit extension attitude reference device and realize that jointly the pressure between window lap-joint and pit shaft is complete, main borehole and each branch well hole diameter still are consistent after the completion.This system tool is sent into mechanism, main hole Expansion sealing hitch, is made of running tool pipe nipple, main hole Expansion sealing pipe nipple, center-pole, expansion cone, expansion emission cavity, load socket, plug; System tool is sat and is hung attitude reference device, is made of internal lining pipe, sliding tray, slide key, the directed cap of slip; The humanoid iron trousers of the inflatable slot pipe of system tool preformed branch is propped up joint portion, main supporting leg, is divided supporting leg to constitute by waist, iron trousers buttocks, two trousers on the prefabricated iron trousers; Running tool pipe nipple top is provided with the drilling rod button, and the bottom is provided with internal thread, and the internal diameter of bottom external dimensions and main hole Expansion sealing pipe nipple is complementary, and middle projection directly rides over the top of Expansion sealing pipe nipple; Center-pole is threaded with the running tool pipe nipple, and center-pole mid portion external diameter is greater than two ends, and middle projection is provided with liquid-through hole, and center-pole two ends external diameter is smooth, and its lower end is threaded with plug, and the plug external diameter is greater than load socket diameter of bore; Making the upper end with the instrument steel is taper, tapering 9-20 degree, and inner chamber is provided with the expansion cone of seal groove, and internal diameter and center-pole upper dimension are complementary, and rely on the intermediate projections of center-pole to be fixed in the main hole Expansion sealing pipe nipple; The external diameter of expansion emission cavity is not more than the latus rectum of top main shaft sleeve pipe; In making with expandable material 16Mn, stainless steel alloy material the conical surface is arranged, down the main hole Expansion sealing pipe nipple of interior screw thread is arranged and be threaded with internal lining pipe with good plasticity; The load socket is an annular, inside and outside be equipped with seal groove, outer shroud is provided with anti-rotation groove, can pass through Expansion sealing pipe nipple peripheral hardware pin fastening rotating-proof with it, also can establish protruding fastening rotating-proof by internal lining pipe is suitable for reading, this socket also is provided with lateral opening, this lateral opening must and fixing in it branch's guiding tube sealing; Internal lining pipe is a round steel pipe, its upper end is threaded with the Expansion sealing pipe nipple, external diameter one side or corresponding both sides are provided with sliding tray, length is not less than the length of oval branched pipe, the directed cap lower end of sliding is provided with the inclined-plane of 20-60 degree, be fixed on the internal lining pipe by shearing with slide key, maximum outside diameter is not more than basic run through casing size; Prefabricated humanoid iron trousers: the outside that waist, iron trousers buttocks, two trousers prop up joint portion, main supporting leg, branch's leg mechanism on the iron trousers is all vulcanized or is coated with and is brushed with the erosion resistant high-temperature resistant rubber; Main supporting leg, to divide supporting leg be ellipse, and main supporting leg score supporting leg is long, carries out slot after can be pre-formed, also can first slot reshaping, be staggered behind the slot, and the maximum outside diameter after the combination is less than latus rectum in three grades or the level Four completion tubular column; In minute supporting leg, be provided with branch's guiding tube, divide the supporting leg lower end to be provided with branch outlet wiper block and branch's introduction, branch's introduction external diameter is less than the minor axis length of main supporting leg or branch supporting leg, in three grades or level Four Multilateral Wells completion tubular column, the upper end of tubing string is provided with positioning sleeve, and the lower end of tubing string is provided with branch's pit shaft, main branch wellbore and basic sleeve pipe; The basis sleeve body is the hollow conventional cannula, and branch's pit shaft is a pre-drilled cavity hollow branch pit shaft, and the pre-drilled cavity place is oval, and it is suitable that transverse diameter and main branch wellbore are provided with the wedge deflection tool chamfer length, and the minor axis diameter is slightly less than the perforate run through casing size.
After this system tool assembling, be connected with drill rod thread on the running tool pipe nipple and send into down-hole branch window, the last positioning sleeve that the directed cap automatic capturing of the slip main shaft of seat extension attitude reference device is reserved is also sat on it, this moment, the branch supporting leg of humanoid iron trousers was consistent with branch pit shaft orientation, divide branch's introduction that afterbody upwarps in the supporting leg to enter automatically in branch's pit shaft, after the site operation person can according to circumstances judge, utilize the weight of drilling tool to press down system tool, main supporting leg is separated with dividing supporting leg, directly causing two trousers props up the joint portion and rides over the end of window along last, after finishing the sending into of preformed screen casing, the ground turn on pump is suppressed, after pressure reaches certain value, the thrust that produces promotes expansion cone and moves ahead, and main hole Expansion sealing pipe nipple in the main hole Expansion sealing hitch is expanded and is close on the tube wall that is attached to basic sleeve pipe, works as abrupt pressure reduction, the Expansion sealing of promptly finishing main hole top hangs, and expansion cone was scurried out to finish from the Expansion sealing pipe nipple and thrown into this moment.Then trip out tubing string, be connected on the center-pole plug with the load socket and on branch's guiding tube, branch outlet wiper block, branch's introduction take, stay downhole tool out of, be lowered to fixing awl or the bloated awl of reducing of expanding again, divide supporting leg and main supporting leg to expand to prefabricated iron trousers successively from top to bottom, make its be close to be attached to multitube overlap joint three, in the level Four Multilateral Wells completion tubular column, the whole well of so far finishing main shaft and Multilateral Wells seals.
The beneficial effects of the utility model are that structure design and application are fairly simple; Pressure integrity is provided at the contact place and enters ability again, can reduce the loss of running system pressure, provide the waterpower integrality at the contact place, tube wall is smooth, further reduce the wastage, main borehole and each branch well hole diameter are consistent after the completion, and its diameter loss only is 2 and is split into thickness of pipe wall in advance, have the interference that reduces between the branch, improve the production capacity effect.
Description of drawings:
Fig. 1 is the utility model overall structure schematic diagram.
Fig. 2 is the utility model load socket cut-away view.
Fig. 3 is that extension attitude reference device slide construction schematic diagram is sat in the A-A cross section.
Fig. 4 is that the B-B cross section is the humanoid trousers branched structure of an inflatable slot pipe preformed schematic diagram.
Fig. 5 is that the C-C cross section is that humanoid iron trousers two trousers of inflatable slot pipe preformed prop up structural representation.
Fig. 6 is three grades or level Four Multilateral Wells completion tubular column structural representation.
Fig. 7 finishes to stay the downhole tool structural representation after system tool is thrown into.
Fig. 8 is six-grade branch well system tool and three grades or a level Four Multilateral Wells completion tubular bonding structure schematic diagram behind the expansion molding.
Among the figure 1, the running tool pipe nipple, 2, main hole Expansion sealing pipe nipple, 3, center-pole, 4, expansion cone, 5, the expansion emission cavity, 6, the load socket, 7, plug, 8, liquid-through hole, 9, internal lining pipe, 10, sliding tray, 11, slide key, 12, directed cap slides, 13, waist on the iron trousers, 14, iron trousers buttocks, 15, two trousers prop up the joint portion, 16, branch's guiding tube, 17, main supporting leg, 18, divide supporting leg, 19, the branch outlet wiper block, 20, branch's introduction, 21, last positioning sleeve, 22, branch's pit shaft, 23, main branch wellbore, 24, the basis sleeve pipe, 25, attached gum cover expansion slot tubing string.
The specific embodiment:
In the drawings, a kind of performing six-grade branch well system tool, by running tool pipe nipple 1, main hole Expansion sealing pipe nipple 2, center-pole 3, expansion cone 4, expansion emission cavity 5, load socket 6, plug 7, liquid-through hole 8, internal lining pipe 9, sliding tray 10, slide key 11, directed cap 12 slides, waist 13 on the iron trousers, iron trousers buttocks 14, two trousers prop up joint portion 15, branch's guiding tube 16, main supporting leg 17, divide supporting leg 18, branch outlet wiper block 19, branch's introduction 20, last positioning sleeve 21, branch's pit shaft 22, main branch wellbore 23, basis sleeve pipe 24, attached gum cover expansion slot tubing string 25 is formed, performing six-grade branch well system tool is on the basis of existing Multilateral Wells completion system instrument, adopt the humanoid iron trousers of inflatable slot pipe preformed branch, main hole expands and hangs the sealing system instrument, send into mechanism, sit extension attitude reference device and realize that jointly the pressure between window lap-joint and pit shaft is complete, main borehole and each branch well hole diameter still are consistent after the completion.This system tool is sent into mechanism, main hole Expansion sealing hitch, is made of running tool pipe nipple 1, main hole Expansion sealing pipe nipple 2, center-pole 3, expansion cone 4, expansion emission cavity 5, load socket 6, plug 7; System tool is sat and is hung attitude reference device, is made of internal lining pipe 9, sliding tray 10, slide key 11, the directed cap 12 that slides; The humanoid iron trousers of the inflatable slot pipe of system tool preformed branch is propped up joint portion 15, main supporting leg 17, is divided supporting leg 18 to constitute by waist 13, iron trousers buttocks 14, two trousers on the prefabricated iron trousers; Running tool pipe nipple 1 top is provided with the drilling rod button, and the bottom is provided with internal thread, and the internal diameter of bottom external dimensions and main hole Expansion sealing pipe nipple 2 is complementary, and middle projection directly rides over the top of Expansion sealing pipe nipple 2; Center-pole 3 is threaded with running tool pipe nipple 1, and center-pole 3 mid portion external diameters are greater than two ends, and middle projection is provided with liquid-through hole 8, and center-pole 3 two ends external diameters are smooth, and its lower end is threaded with plug, and plug 7 external diameters are greater than load socket 6 diameter of bores; Making the upper end with the instrument steel is taper, and tapering 9-20 degree, inner chamber are provided with the expansion cone 4 of seal groove, and internal diameter and center-pole 3 upper dimension are complementary, and relies on the intermediate projections of center-pole 3 to be fixed in the main hole Expansion sealing pipe nipple 2; The external diameter of expansion emission cavity 5 is not more than the latus rectum of top main shaft sleeve pipe; In making with expandable material 16Mn, stainless steel alloy material the conical surface is arranged, down the main hole Expansion sealing pipe nipple 2 of interior screw thread is arranged and be threaded with internal lining pipe 9 with good plasticity; Load socket 6 is an annular, inside and outside be equipped with seal groove, outer shroud is provided with anti-rotation groove, can pass through Expansion sealing pipe nipple 2 peripheral hardware pins fastening rotating-proof with it, also can establish protruding fastening rotating-proof by internal lining pipe 9 is suitable for reading, this socket also is provided with lateral opening, this lateral opening must and fixing in it 16 sealings of branch's guiding tube; Internal lining pipe 9 is a round steel pipe, its upper end is threaded with Expansion sealing pipe nipple 2, external diameter one side or corresponding both sides are provided with sliding tray 10, length is not less than oval length of dividing supporting leg 18, directed cap 12 lower ends of sliding are provided with the inclined-plane of 20-60 degree, be fixed on the internal lining pipe by shearing with slide key 11, maximum outside diameter is not more than basic sleeve pipe 24 latus rectums; Prefabricated humanoid iron trousers: waist 13, iron trousers buttocks 14, two trousers prop up joint portion 15, main supporting leg 17, divide supporting leg 18 on the iron trousers; The outside of branch is all vulcanized or is coated with and is brushed with the erosion resistant high-temperature resistant rubber; Main supporting leg 17, to divide supporting leg 18 be oval, and main supporting leg 17 score supporting legs 18 grow, can pre-formed laggard slot, also can first slot reshaping, and be staggered behind the slot, the maximum outside diameter after the combination is less than latus rectum in three grades or the level Four completion tubular column; In minute supporting leg 18, be provided with branch's guiding tube 16, divide supporting leg 18 lower ends to be provided with branch outlet wiper block 19 and branch's introduction 20, branch's introduction 20 external diameters are less than the minor axis length of main supporting leg 17 or branch supporting leg 18, in three grades or level Four Multilateral Wells completion tubular column, the upper end of tubing string is provided with positioning sleeve 21, and the lower end of tubing string is provided with branch's pit shaft 22, main branch wellbore 23 and basic sleeve pipe 24; Basis sleeve pipe 24 bodies are the hollow conventional cannula, and branch's pit shaft 22 is a pre-drilled cavity hollow branch pit shaft, and the pre-drilled cavity place is oval, and it is suitable that transverse diameter and main branch wellbore 23 are provided with the wedge deflection tool chamfer length, and the minor axis diameter is slightly less than the perforate run through casing size.
After this system tool assembling, be connected with drill rod thread on the running tool pipe nipple 1 and send into down-hole branch window, the directed cap 12 automatic capturing main shafts reservation of the slip of seat extension attitude reference device is gone up positioning sleeve 21 and is sat on it, this moment, the branch supporting leg 18 of humanoid iron trousers was consistent with branch pit shaft 22 orientation, divide branch's introduction 20 that afterbody upwarps in the supporting leg 18 to enter automatically in branch's pit shaft 22, after the site operation person can according to circumstances judge, utilize the weight of drilling tool to press down system tool, main supporting leg 17 is separated with dividing supporting leg 18, directly causing two trousers props up joint portion 15 and rides over the end of window along last, after finishing the sending into of preformed screen casing, the ground turn on pump is suppressed, after pressure reaches certain value, the thrust that produces promotes expansion cone 4 and moves ahead, and main hole Expansion sealing pipe nipple 2 in the main hole Expansion sealing hitch is expanded and is close on the tube wall that is attached to basic sleeve pipe 24, works as abrupt pressure reduction, the Expansion sealing of promptly finishing main hole top hangs, and expansion cone 4 was scurried out to finish from the Expansion sealing pipe nipple and thrown into this moment.Then trip out tubing string, be connected on the center-pole 3 plug 7 with load socket 6 and on branch's guiding tube 16, branch outlet wiper block 19, branch's introduction 20 take out of, stay downhole tool, be lowered to fixing awl or the bloated awl of reducing of expanding again, divide supporting leg 18 and main supporting leg 17 to expand to prefabricated iron trousers successively from top to bottom, make its be close to be attached to multitube overlap joint three, in the level Four Multilateral Wells completion tubular column, the whole well of so far finishing main shaft and Multilateral Wells seals.
Claims (1)
1. performing six-grade branch well system tool, by running tool pipe nipple (1), main hole Expansion sealing pipe nipple (2), center-pole (3), expansion cone (4), expansion emission cavity (5), load socket (6), plug (7), liquid-through hole (8), internal lining pipe (9), sliding tray (10), slide key (11), directed cap (12) slides, waist on the iron trousers (13), iron trousers buttocks (14), two trousers prop up joint portion (15), branch's guiding tube (16), main supporting leg (17), divide supporting leg (18), branch outlet wiper block (19), branch's introduction (20), last positioning sleeve (21), branch's pit shaft (22), main branch wellbore (23), basis sleeve pipe (24), attached gum cover expansion slot tubing string (25) is formed, it is characterized in that: performing six-grade branch well system tool is that humanoid iron trousers branch constitutes main supporting leg (17), it is oval dividing supporting leg (18); This system tool is sent into mechanism, main hole Expansion sealing hitch, is made of running tool pipe nipple (1), main hole Expansion sealing pipe nipple (2), center-pole (3), expansion cone (4), expansion emission cavity (5), load socket (6), plug (7); System tool is sat and is hung attitude reference device, is made of internal lining pipe (9), sliding tray (10), slide key (11), the directed cap (12) that slides; The humanoid iron trousers of the inflatable slot pipe of system tool preformed branch is propped up joint portion (15), main supporting leg (17), is divided supporting leg (18) to constitute by waist (13), iron trousers buttocks (14), two trousers on the prefabricated iron trousers; Running tool pipe nipple (1) top is provided with the drilling rod button, and the bottom is provided with internal thread, and the internal diameter of bottom external dimensions and main hole Expansion sealing pipe nipple (2) is complementary, and middle projection directly rides over the top of Expansion sealing pipe nipple (2); Center-pole (3) is threaded with running tool pipe nipple (1), center-pole (3) mid portion external diameter is greater than two ends, and middle projection is provided with liquid-through hole (8), and center-pole (3) two ends external diameter is smooth, its lower end is threaded with plug, and plug (7) external diameter is greater than load socket (6) diameter of bore; Making the upper end with the instrument steel is taper, and tapering 9-20 degree, inner chamber are provided with the expansion cone (4) of seal groove, and internal diameter and center-pole (3) upper dimension is complementary, and relies on the intermediate projections of center-pole (3) to be fixed in the main hole Expansion sealing pipe nipple (2); The external diameter of expansion emission cavity (5) is not more than the latus rectum of top main shaft sleeve pipe; In making with stainless steel alloy material the conical surface is arranged, down the main hole Expansion sealing pipe nipple (2) of interior screw thread is arranged and be threaded with internal lining pipe (9); Load socket (6) is an annular, inside and outside be equipped with seal groove, outer shroud is provided with anti-rotation groove, can pass through main hole Expansion sealing pipe nipple (2) peripheral hardware pin fastening rotating-proof with it, or establish protruding fastening rotating-proof in that internal lining pipe (9) is suitable for reading, this socket also is provided with lateral opening, this lateral opening branch's guiding tube (16) must sealing and fix in it; Internal lining pipe (9) is a round steel pipe, its upper end is threaded with Expansion sealing pipe nipple (2), external diameter one side or corresponding both sides are provided with sliding tray (10), length is not less than oval length of dividing supporting leg (18), directed cap (12) lower end of sliding is provided with the inclined-plane of 20-60 degree, be fixed on the internal lining pipe (9) by shearing with slide key (11), maximum outside diameter is not more than basic sleeve pipe (24) latus rectum; Prefabricated humanoid iron trousers: waist on the iron trousers (13), iron trousers buttocks (14), two trousers prop up joint portion (15), main supporting leg (17), divide supporting leg (18); The outside of whole humanoid iron trousers branch is all vulcanized or is coated with and is brushed with the erosion resistant high-temperature resistant rubber; Main supporting leg (17), branch supporting leg (18) are oval, and main supporting leg (17) score supporting leg (18) is long, carries out slot after can be pre-formed, also can first slot reshaping, be staggered behind the slot, the maximum outside diameter after the combination is less than latus rectum in three grades or the level Four completion tubular column; In a minute supporting leg (18), be provided with branch's guiding tube (16), divide supporting leg (18) lower end to be provided with branch outlet wiper block (19) and branch's introduction (20), branch's introduction (20) external diameter is less than the minor axis length of main supporting leg (17) or branch supporting leg (18), in three grades or level Four Multilateral Wells completion tubular column, the upper end of tubing string is provided with positioning sleeve (21), and the lower end of tubing string is provided with branch's pit shaft (22), main branch wellbore (23) and basic sleeve pipe (24); Basis sleeve pipe (24) body is the hollow conventional cannula, branch's pit shaft (22) is a pre-drilled cavity hollow branch pit shaft, the pre-drilled cavity place is oval, and it is suitable that transverse diameter and main branch wellbore (23) are provided with the wedge deflection tool chamfer length, and the minor axis diameter is slightly less than the perforate run through casing size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202481528U CN201810204U (en) | 2009-11-17 | 2009-11-17 | Preformed six-stage multilateral well system tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202481528U CN201810204U (en) | 2009-11-17 | 2009-11-17 | Preformed six-stage multilateral well system tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201810204U true CN201810204U (en) | 2011-04-27 |
Family
ID=43893147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202481528U Expired - Fee Related CN201810204U (en) | 2009-11-17 | 2009-11-17 | Preformed six-stage multilateral well system tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201810204U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106988686A (en) * | 2016-01-20 | 2017-07-28 | 中国石油化工股份有限公司 | Tubing string |
-
2009
- 2009-11-17 CN CN2009202481528U patent/CN201810204U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106988686A (en) * | 2016-01-20 | 2017-07-28 | 中国石油化工股份有限公司 | Tubing string |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209228337U (en) | A kind of dissolvable bridge plug | |
| CN101614117B (en) | Expansion tube type liner hanger | |
| CN201460778U (en) | Expansion pipe type tail pipe hanger | |
| CN102575512A (en) | Expandable liner tieback connection | |
| CN101343991A (en) | Single bore diameter well completion structure and well completion method | |
| CN101413384A (en) | Method for sealing branch well window by using metal expansion pipe | |
| CN109138880B (en) | Bidirectional anchor | |
| CN101906945A (en) | Hydraulic expansion hanger for expandable screen pipes | |
| CN101403280A (en) | Six-stage branch well branching manufacturing and branching system tool | |
| CN101718170B (en) | Preformed six-stage branch well system tool | |
| CN209040783U (en) | Bidirectionally anchoring device | |
| CN202832323U (en) | Locking type expansion drilling liner hanger | |
| CN208734311U (en) | A kind of permanent type well completion packer that mechanical can be given up | |
| CN208184703U (en) | The packer of torque can be transmitted | |
| CN201810204U (en) | Preformed six-stage multilateral well system tool | |
| CN210343302U (en) | External expansion type soluble bridge plug | |
| CN101173601B (en) | Rotatable hydraulic expanding type tail pipe hanger | |
| CN201705252U (en) | Hydraulic expansion type rotating liner hanger | |
| CN201412097Y (en) | Hydraulic expansion type hanger for expansion sieve tube | |
| CN201110143Y (en) | Fluid pressure tailpiece hanger | |
| CN101748989A (en) | Branch well window sealing method | |
| CN103628834A (en) | Locking type expansion tail pipe hanger | |
| CN109424343B (en) | Wellhead and wellhead injection-accompanying method | |
| CN201106427Y (en) | Rotatable hydraulic machinery double-acting intumescence type tailpiece hanger | |
| CN101161982B (en) | Hydraulic buckling type tail pipe hanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20111117 |