CN105696961A - Window sidetrack drilling bottom drilling tool assembly and matching tool scheme for torque withstanding type coiled tubing - Google Patents
Window sidetrack drilling bottom drilling tool assembly and matching tool scheme for torque withstanding type coiled tubing Download PDFInfo
- Publication number
- CN105696961A CN105696961A CN201610035324.8A CN201610035324A CN105696961A CN 105696961 A CN105696961 A CN 105696961A CN 201610035324 A CN201610035324 A CN 201610035324A CN 105696961 A CN105696961 A CN 105696961A
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- China
- Prior art keywords
- drilling
- bearing torque
- bha
- pipe
- torque
- Prior art date
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- Pending
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 46
- 238000003801 milling Methods 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 24
- 230000008569 process Effects 0.000 claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 239000004568 cement Substances 0.000 claims abstract 2
- 239000011435 rock Substances 0.000 claims abstract 2
- 210000002445 nipple Anatomy 0.000 claims description 33
- 230000008859 change Effects 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 5
- 239000003129 oil well Substances 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract description 2
- 238000004873 anchoring Methods 0.000 abstract 3
- 230000000280 vitalizing effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B29/00—Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
- E21B29/06—Cutting windows, e.g. directional window cutters for whipstock operations
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to the field of oil and gas drilling, in particular to the field of casing tube window sidetrack drilling, and provides a window sidetrack drilling bottom drilling tool assembly and matching tool scheme for coiled tubing. The scheme comprises an anchoring directional mechanism, a bottom drilling tool assembly, a torque withstanding mechanism and matching tools. The anchoring directional mechanism is located at the bottom and is used for bearing the axial force and torque exerted by a drilling tool in the drilling process and guiding a drill bit to drill in the designed direction. The bottom drilling tool assembly is arranged above the anchoring directional mechanism and used for milling sleeve pipes, cement sheathes and rocks and drilling out a section of well in the drilling process. The torque withstanding mechanism bears reaction torque generated by the bottom drilling tool assembly in the drilling process, restrains the rotation of tubular columns, and prevents the coiled tubing from bearing torque. According to the scheme, the advantages of coiled tubing drilling and the advantages of conventional sleeve pipe window sidetrack drilling re combined, and an effective method is provided for improving the recovery efficiency for oil fields and vitalizing old oil well properties.
Description
Technical field
The present invention relates to oil/gas drilling field, particularly a kind of continuous pipe window sidetracking BHA of bearing torque formula being applied to window sidetracking technique and kit。
Background technology
Coiled tubing drilling is the hot technology grown up since the nineties in 20th century, along with about material, the development of equipment and improvement, continuous pipe is widely used in the field such as oil drilling, pressure break, has the advantages such as adaptability is good, handling speed is fast, cost is low。The current oil owner of farmland to apply conventional cannula window sidetracking technique, enters whipstock or section milling shoe sleeve pipe in advance under down-hole, utilizes drilling rod or oil pipe to connect milling shoe of windowing and gets out new well inside old well, it is achieved old well utilizes, reduces development cost。The advantage making full use of continuous pipe operation, defines continuous pipe-in-pipe window sidetracking operation scheme in conjunction with casing window sidetracking technique and continuous pipe drilling technology, is improve current oil recovery rate, reduces the important method of operating cost, have wide market prospect。
Continuous pipe window sidetracking BHA is the important component part of continuous pipe window sidetracking。Conventional rotary disk driller, top drive drilling or workover rig Sidetracking, use drilling rod or the continuous BHA of oil pipe, in windowing-process, drill bit the pressure of the drill derives from the weight of drill collar, milling shoe relies on rotating disk, top to drive or power drilling tool rotates milling sleeve pipe, and in shattering process, reaction torque is passed to ground drill by drill string。Because the tube wall of continuous pipe is relatively thin, operation process is not subject to moment of torsion and ballast, it is necessary to down-hole limit tubing string rotate, routine window milling shoe BHA be not directly applicable continuous tube side bore。
Summary of the invention
In view of continuous pipe being applied to the key issue that casing window sidetracking technique exists, proposing a kind of bearing torque formula continuous pipe window sidetracking technique BHA and kit scheme, the program is made up of bearing torque mechanism, BHA, grappling attitude reference device and kit。Bearing torque mechanism is made up of anti-torsion pipe nipple, counterweight tube, bearing torque pipe nipple, bearing torque sleeve；BHA is made up of power drilling tool, upper milling cone, flexible nipple, lower milling cone, milling shoe of windowing。Grappling attitude reference device is made up of bearing torque sleeve, whipstock；Kit is made up of pipe, continuous pipe connector, safety joint, counterweight tube continuously。Described continuous pipe connector, described safety joint, described anti-torsion pipe nipple, described counterweight tube, described bearing torque pipe nipple, described power drilling tool, described upper milling cone, described flexible nipple, described lower milling cone, described in window and pass sequentially through threaded between milling shoe, be connected by screw or weld between described bearing torque sleeve, whipstock。
Bearing torque formula coiled tubing window sidetracking BHA described above and kit scheme, wherein, whipstock measures orientation in advance, is anchored on sidetracking section bottom, bears axial force and moment of torsion。
Bearing torque formula coiled tubing window sidetracking BHA described above and kit scheme, wherein, whipstock forces drill bit deflection sleeve pipe of windowing, milling sleeve pipe by upper inclined surface。
Bearing torque formula coiled tubing window sidetracking BHA described above and kit scheme, wherein, bearing torque sleeve and whipstock are connected by screw, and operation process does not rotate, and is coordinated by keyway with bearing torque pipe nipple, and restriction drilling tool rotates。Its upper design lead-in chamfered, is used for guiding bearing torque pipe nipple to rotate。
Bearing torque formula coiled tubing window sidetracking BHA described above and kit scheme, wherein, described power drilling tool is helicoid hydraulic motor or turbodrill or electrodrill。
Bearing torque formula coiled tubing window sidetracking BHA described above and kit scheme, wherein, described counterweight tube applies the pressure of the drill instrument for auxiliary。
Bearing torque formula coiled tubing window sidetracking BHA described above and kit scheme, wherein, described bearing torque pipe nipple mechanism design flat key, under enter process produces moment of torsion to make bearing torque mechanism completely enter bearing torque sleeve；Coordinated by keyway with bearing torque sleeve and bear bottom drill tool reaction torque,
Bearing torque formula coiled tubing window sidetracking BHA described above and kit scheme, wherein, described anti-torsion pipe nipple allows to rotate in counterweight tube, bearing torque pipe nipple, power drilling tool, upper milling cone, flexible nipple, lower milling cone, milling shoe decentralization process of windowing, it is prevented that moment of torsion is transferred to continuous pipe。Anti-torsion pipe nipple indoor design sealing mechanism, it is prevented that drilling fluid leaks。
Bearing torque formula coiled tubing window sidetracking BHA described above and kit scheme, wherein, safety joint is that ball-throwing type sliding sleeve shears release nipple。
Bearing torque formula coiled tubing window sidetracking BHA described above and kit scheme, wherein, lift power by continuous pipe and control the pressure of the drill and drilling speed。
Compared with prior art, the invention have the characteristics that and advantage:
The present invention uses and enters BHA of windowing under coiled tubing, reduces the routine process of making a trip and makes up a joint the time。In operation process, continuous pipe is not subject to moment of torsion, the pressure of the drill easy to control。There is the feature of simple in construction, reliable operation。
Accompanying drawing explanation
The present invention is further described below in conjunction with accompanying drawing；
Fig. 1 is the structural representation for the continuous pipe window sidetracking BHA of bearing torque formula of the present invention；
Fig. 2 is the structural representation of embodiment of the present invention。
Wherein, 1, continuous pipe 2, continuous pipe connector 3, safety joint 4, anti-torsion pipe nipple 5, counterweight tube 6, bearing torque pipe nipple 7, power drilling tool 8, upper milling cone 9, flexible nipple 10, lower milling cone 11, milling shoe 12 of windowing, bearing torque sleeve 13, whipstock
Detailed description of the invention
(1) use screw to be connected bearing torque sleeve 12 and whipstock, under enter oil well predetermined level orientation grappling。
(2) will window milling shoe 11, lower milling cone 10, flexible nipple 9, upper milling cone 8, power drilling tool 7, bearing torque pipe nipple 6, counterweight tube 5, anti-torsion pipe nipple 4, safety joint 3 is sequentially connected with continuous pipe connector 2, continuous pipe 1。
(3) by the BHA that installs by well head, in steady lower going-into-well, BHA close to window interval time, strictly control running speed, the milling shoe that makes to window enters bearing torque sleeve。
(4) by controlling continuous pipe lowering velocity, make bearing torque pipe nipple 6 rotate on bearing torque sleeve 12 guide surface and slip in bearing torque sleeve 12 keyway。
(5) observing rig or Operation Van's hook load change, when load substantially reduces, bearing torque pipe nipple 6 is completely in bearing torque sleeve 12, and milling shoe 11 of windowing contacts whipstock 13。
(6) ground turn on pump circulating fluid, power drilling tool 7 exports moment of torsion, makes milling cone 8, flexible nipple 9, lower milling cone 10, milling shoe 11 of windowing rotate, milling sleeve pipe。Reaction torque is passed to bearing torque pipe nipple 6, bearing torque sleeve 12, whipstock 13 successively by power drilling tool。
(7) control the pressure of the drill size by control hook power, adjust window drilling speed and BHA mechanical property。
(8) slowly transferring continuous pipe 1 in drilling process, hook power is reduced to certain certain value and no longer changes, and bearing torque pipe nipple 6 comes downwards to bottom bearing torque sleeve 12 keyway, and casing side tracking windowing-process terminates。
(9) lift up continuous pipe, trip out the continuous pipe window sidetracking BHA of bearing torque formula。
The foregoing is only the schematic detailed description of the invention of the present invention, be not limited to the scope of the present invention。Any those skilled in the art, the equivalent variations made under without departing from the design of this replacement and the premise of principle and amendment, all should belong to the scope of this replacement protection。
Claims (8)
1. the continuous pipe window sidetracking BHA of bearing torque formula and a kit scheme, the program is made up of grappling attitude reference device, BHA, bearing torque mechanism and kit；Grappling attitude reference device is positioned at bottom, bears the axial force and moment of torsion that are applied in drilling process by drilling tool；Bottom drill tool composition is positioned at grappling attitude reference device upper end, and milling sleeve pipe, cement sheath, rock in drilling process get out one section of well along design direction；The reaction torque that bottom drill tool produces is born in drilling process by bearing torque mechanism, and restriction drilling tool rotates, it is prevented that pipe bears moment of torsion continuously。
2. a kind of continuous pipe window sidetracking BHA of bearing torque formula as claimed in claim 1 and kit scheme, it is characterized in that: described directed anchor mechanism is made up of anchor, whipstock, bearing torque sleeve, G.I.H orientation grappling in advance, bears axial force and drilling tool moment of torsion。
3. as claimed in claim 1 a kind of continuous pipe window sidetracking BHA of bearing torque formula and kit scheme, it is characterised in that: described BHA by power drilling tool, repair window milling cone, flexible nipple, milling shoe of windowing form。
4. a kind of continuous pipe window sidetracking BHA of bearing torque formula as claimed in claim 3 and kit scheme, it is characterized in that: the effect of described flexible nipple is to adjust BHA mechanical property, change, by adjusting flexible nipple bending rigidity, window milling shoe corner and side force。
5. a kind of continuous pipe window sidetracking BHA of bearing torque formula as claimed in claim 1 and kit scheme, it is characterised in that: described bearing torque mechanism is made up of anti-torsion pipe nipple, bearing torque pipe nipple。
6. a kind of continuous pipe window sidetracking BHA of bearing torque formula as claimed in claim 5 and kit scheme, it is characterized in that: described anti-torsion pipe nipple is arranged between counterweight tube and safety joint, allow connect counterweight tube, BHA under enter in process rotate, it is prevented that deliver torque to continuous pipe。
7. a kind of continuous pipe window sidetracking BHA of bearing torque formula as claimed in claim 5 and kit scheme, it is characterized in that: described bearing torque pipe nipple, being coordinated by keyway with bearing torque sleeve, restriction drilling tool rotates, and drilling tool reaction torque is passed to bearing torque sleeve, whipstock, anchor successively。
8. a kind of continuous pipe window sidetracking BHA of bearing torque formula as claimed in claim 1 and kit scheme, it is characterized in that: described kit is made up of counterweight tube, safety joint, continuous pipe connector, counterweight tube is used for assisting applying the pressure of the drill, safety joint is for promptly giving up, and connector for continuous tube is used for connecting top and manages torsion pipe nipple anti-with bottom continuously。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610035324.8A CN105696961A (en) | 2016-01-20 | 2016-01-20 | Window sidetrack drilling bottom drilling tool assembly and matching tool scheme for torque withstanding type coiled tubing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610035324.8A CN105696961A (en) | 2016-01-20 | 2016-01-20 | Window sidetrack drilling bottom drilling tool assembly and matching tool scheme for torque withstanding type coiled tubing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105696961A true CN105696961A (en) | 2016-06-22 |
Family
ID=56227713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610035324.8A Pending CN105696961A (en) | 2016-01-20 | 2016-01-20 | Window sidetrack drilling bottom drilling tool assembly and matching tool scheme for torque withstanding type coiled tubing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105696961A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968599A (en) * | 2017-03-28 | 2017-07-21 | 中国石油大学(北京) | A kind of continuous pipe window opening tool |
| CN109519136A (en) * | 2017-09-18 | 2019-03-26 | 中国石油化工股份有限公司 | A kind of automatic rotoblast cutting technique tubing string of coiled tubing and method |
| CN112855056A (en) * | 2021-01-07 | 2021-05-28 | 河南理工大学 | Automatic dismounting equipment and dismounting method for magnetic buckle type supporting sleeve of underground coiled tubing |
| CN114635673A (en) * | 2022-03-07 | 2022-06-17 | 陆建峰 | Horizontal well water injection and oil extraction synchronous conversion tubular column and method based on signal control |
-
2016
- 2016-01-20 CN CN201610035324.8A patent/CN105696961A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968599A (en) * | 2017-03-28 | 2017-07-21 | 中国石油大学(北京) | A kind of continuous pipe window opening tool |
| CN109519136A (en) * | 2017-09-18 | 2019-03-26 | 中国石油化工股份有限公司 | A kind of automatic rotoblast cutting technique tubing string of coiled tubing and method |
| CN112855056A (en) * | 2021-01-07 | 2021-05-28 | 河南理工大学 | Automatic dismounting equipment and dismounting method for magnetic buckle type supporting sleeve of underground coiled tubing |
| CN112855056B (en) * | 2021-01-07 | 2022-09-23 | 河南理工大学 | Automatic dismounting equipment and dismounting method for magnetic buckle type supporting sleeve of underground coiled tubing |
| CN114635673A (en) * | 2022-03-07 | 2022-06-17 | 陆建峰 | Horizontal well water injection and oil extraction synchronous conversion tubular column and method based on signal control |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160622 |