CN104727770A - Section milling type casing pipe sidetracking windowing tool - Google Patents
Section milling type casing pipe sidetracking windowing tool Download PDFInfo
- Publication number
- CN104727770A CN104727770A CN201510117234.9A CN201510117234A CN104727770A CN 104727770 A CN104727770 A CN 104727770A CN 201510117234 A CN201510117234 A CN 201510117234A CN 104727770 A CN104727770 A CN 104727770A
- Authority
- CN
- China
- Prior art keywords
- deflection cone
- piston
- tool body
- tool
- cutter hub
- 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
- 238000003801 milling Methods 0.000 title claims abstract description 39
- 239000000956 alloy Substances 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 239000003208 petroleum Substances 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 238000005553 drilling Methods 0.000 description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 208000037804 stenosis Diseases 0.000 description 1
- 230000036262 stenosis 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
- 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 a section milling type casing pipe sidetracking windowing tool, and belongs to the technical field of petroleum and gas well casing sidetracking windowing tools. The section milling type casing pipe sidetracking windowing tool is composed of an upper connector, a tool body, a flow guide cone, a flow guide cone seat, a flow guide rod, a piston assembly and the like, and is characterized in that the upper connector is arranged at the upper end of the tool body, the flow guide cone seat is arranged on the upper portion of a cavity of the tool body, and the flow guide rod and the flow guide cone are in clamped connection; a small spring is arranged at the connecting position of the flow guide cone and the flow guide rod, and the piston assembly is arranged at the position, on the lower portion of the flow guide cone seat, in the cavity of the tool body, and is composed of an upper piston body, a throttle pipe, a lower piston body, a spring, a limiting pressing plate, a supporting sleeve and a supporting nut; a knife rest is arranged on the lower portion of the tool body, and provided with knives through pin shafts; the lower piston body is provided with the supporting sleeve through the supporting nut, and the limiting pressing plate is arranged below the lower piston body. The stretching amount of the knives can be adjusted and controlled, and the knives can be automatically opened or contracted, and are solid and durable. Operation is convenient, the sidetracking windowing effect is good, and milling efficiency is high.
Description
Technical field
The present invention relates to a kind of section milling formula casing side tracking window opening tool, belong to oil and gas well drilling casing side tracking window opening tool technical field.
Background technology
At present, lot of domestic and foreign oil field has entered the middle and later periods of exploitation, in order to improve the recovery ratio and development benefit of having dug a well, in line with the principle keeping well pattern integrality, reduce expenses, utilizing the well developed to verify region of bypassed oil or add deep layer position to obtain new oil/gas deep well, is the common recognition of oil and gas exploitation enterprise and the work implemented.Complete this work, carrying out side-drilling windowing to digging a well is highly effective means.The complicated landform of the side-drilling windowing good reply deep-well of energy and ultradeep well and complex hole condition, effectively solve the large problem of sidetracking difficulty of construction.
Casing section milling is windowed, and owing to not having magnetic disturbance, not high to measuring apparatus required precision, therefore becomes old well, deep-well, conventional turn on window that casing wall is thin.The cutter hub work plane that existing section of milling window opening tool has is fixing, cannot shrink, both can block descending, fragile cutter again, troublesome poeration if going down process runs into stenosis; Some complex structures, control very difficult; Also some then solidness is poor, be not durable.
Summary of the invention
The object of the invention is to, provide a kind of flexible and convenient operation, the simply good control of structure, cutter hub is sturdy and durable, and can automatically open or draw in, side-drilling windowing be effective, and efficiency of construction is high; To solve, prior art stage casing milling window opening tool cutter hub work plane is fixing cannot be shunk, and be unfavorable for operation, complex structure causes controlling difficulty, the section milling formula casing side tracking window opening tool of the problems such as cutter hub intensity difference.
The present invention realizes above-mentioned purpose by the following technical solutions:
This section of milling formula casing side tracking window opening tool is made up of top connection, tool body, deflection cone, deflection cone seat, diversion rod, piston assembly, it is characterized in that: tool body upper end is threaded connection and is provided with top connection, tool body cavity top is provided with deflection cone seat, deflection cone seat is provided with deflection cone by bolt, sealing ring, diversion rod one end is manufactured with boss, diversion rod is installed on deflection cone bottom by boss, and the junction of deflection cone and diversion rod is provided with little spring; Deflection cone seat bottom in tool body cavity is provided with piston assembly; Tool body bottom is provided with knife rest, and knife rest is provided with cutter hub by bearing pin; Tool body lower end is manufactured with taper thread, and tool body is connected with milling shoe by taper thread.
Described piston assembly is made up of piston upper body, throttle pipe, piston lower body, spring, spacing pressing plate, support set and holding nut, and piston upper body and piston lower body are bolted, and throttle pipe is compressed by piston upper body and is fixedly mounted with; Open in piston lower body and be shaped with runner, and be manufactured with the inner chamber matched with throttle pipe external diameter; Piston lower body is provided with support set by holding nut, and support set can do axially-movable with piston lower body; Between piston lower body and tool body, spring is installed; Bottom in tool body cavity is provided with spacing pressing plate.
Described throttle pipe top is manufactured with conical cavity, and throttle pipe bottom is mated with intracoelomic cavity under piston.
Described deflection cone and deflection cone seat are opened all separately and is shaped with three runners, three runners of deflection cone and three runner one_to_one corresponding of deflection cone seat.
Described knife rest is arranged on tool body by screw, and cutter hub is arranged on knife rest by bearing pin; The below of cutter hub is provided with limited block.
Described cutter hub is provided with four along the circumference of tool body is uniform, and cutter hub length is not identical, by support set with the motion control of piston often the overhang of cutter hub.
The wing of described cutter hub is inlaid with hard alloy blocks.
The present invention's beneficial effect is compared with prior art:
This section of milling formula casing side tracking window opening tool adopts spacing pressing plate to carry out spacing to piston, avoid the piston stroke caused because of pressure reduction excessive, limit the maximum milling radius of cutter hub, after can ensureing the complete sleeve pipe of milling, the unlikely too much milling borehole wall, keeps the intact degree of original well as possible.Support set is with piston movement, and the overhang of adjustable and control cutter hub, makes the overhang of cutter hub consistent, flexible and convenient operation.Do not need to assemble centralizer, make the present invention have horizontal sliding space, during operation, more easily take iron filings out of.Side-drilling windowing is effective, greatly reduces the milling cycle, effectively reduces side-drilling windowing cost.Structure is simple and easy to control, and cutter hub can automatically be opened or shrink, and sturdy and durable, and milling efficiency is high.The cutter hub work plane solving prior art stage casing milling window opening tool is well fixed and cannot be shunk, and is unfavorable for operation, and complex structure causes controlling trouble, and cutter hub intensity difference, short-life problem.
Accompanying drawing explanation
Accompanying drawing 1 is the overall structure schematic diagram of a kind of section of milling formula casing side tracking window opening tool;
Accompanying drawing 2 is the structure for amplifying schematic diagram that deflection cone and deflection cone seat assemble;
Accompanying drawing 3 is the cross section structure schematic diagram of A-A place deflection cone of Fig. 2.
In figure: 1, top connection, 2, tool body, 3, deflection cone, 4, little spring, 5, deflection cone seat, 6, piston upper body, 7, piston lower body, 8, spring, 9, knife rest, 10, cutter hub, 11, support set, 12, limited block, 13, sealing ring, 14, diversion rod, 15, throttle pipe, 16, spacing pressing plate, 17, bearing pin, 18, holding nut, 19, runner.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the present invention are described in detail:
This section of milling formula casing side tracking window opening tool is made up of top connection 1, tool body 2, deflection cone 3, deflection cone seat 5, diversion rod 14, piston assembly, tool body 2 upper end is threaded connection and is provided with top connection 1, tool body 2 cavity top is provided with deflection cone seat 5, deflection cone seat 5 is provided with deflection cone 3 by bolt, sealing ring 13, diversion rod 14 one end is manufactured with boss, diversion rod 14 is installed on the bottom of deflection cone 3 by boss, and deflection cone 3 is provided with little spring 4 with the junction of diversion rod 14; Deflection cone seat 5 bottom in tool body 2 cavity is provided with piston assembly; Tool body 2 bottom is provided with knife rest 9, and knife rest 9 is provided with cutter hub 10 by bearing pin 17; Tool body 2 lower end is manufactured with taper thread, and tool body 2 is connected with milling shoe by taper thread.
Described piston assembly is made up of piston upper body 6, piston lower body 7, spring 8, support set 11, throttle pipe 15, spacing pressing plate 16, holding nut 18, and piston upper body 6 and piston lower body 7 are bolted, and throttle pipe 15 is compressed by piston upper body 6 and is fixedly mounted with; Open in piston lower body 7 and be shaped with runner, and be manufactured with the inner chamber matched with throttle pipe 15 external diameter; Piston lower body 7 is provided with support set 11 by holding nut 18, and support set 11 can do axially-movable with piston lower body 7; Spring 8 is installed between piston lower body 7 and tool body 2; Bottom in tool body 2 cavity is provided with spacing pressing plate 16.
Described throttle pipe 15 top is manufactured with conical cavity, and throttle pipe 15 bottom is mated with piston lower body 7 inner chamber.
Described deflection cone 3 and deflection cone seat 5 are opened all separately and is shaped with three runners 19, three runners 19 of deflection cone 3 and three runner one_to_one corresponding of deflection cone seat 5.
Described knife rest 9 is arranged on tool body 2 by screw, and cutter hub 10 is arranged on knife rest 9 by bearing pin 17; The below of cutter hub 10 is provided with limited block 12, and the wing of cutter hub 10 is inlaid with hard alloy blocks.
Described cutter hub 10 is provided with four along the circumference of tool body 2 is uniform, and four not identical for cutter hub 10 length, can be controlled often consistent for the overhang of cutter hub 10 by the motion of support set 11 with piston lower body 7.(see accompanying drawing 1 ~ 3)
Can move with piston in support set 11 end, promote cutter hub 10 protruding.Spacing pressing plate 16 can the maximum displacement of limited piston.Top connection 1 one end is manufactured with taper thread, and top connection 1 is connected with drill collar or drilling rod by taper thread, and top connection 1 inside is opened and is shaped with runner.
The course of work of this section of milling formula casing side tracking window opening tool is as follows:
When this section of milling formula casing side tracking window opening tool is come downwards to side-drilling windowing position needed for down-hole, rotate rotating disk, pass into drilling fluid simultaneously, ascending supercharging, drilling fluid enters the runner of top connection 1 through water tap, drilling rod, drill collar etc., by the runner of three between deflection cone 3 and deflection cone seat 5 19, act on piston upper body 6 and piston lower body 7;
Due to spring 8 uncompressed time, annular space between throttle pipe 15 and diversion rod 14 is less, piston assembly there is pressure reduction up and down, promote piston assembly thus to move downward, Compress Spring 8 simultaneously, support set 11 is driven to move downward because piston assembly moves downward, piston lower body 7 promotes cutter hub 10, make four cutter hubs 10 along respective central axis, due to the effect of limited block 12, make the maximum overhang of cutter hub 10 certain, the cutter hub 10 now stretched together rotates beginning Casing-Cutting along with drilling tool, carries out side-drilling windowing.
After completing required side-drilling windowing, termination of pumping, the upper and lower pressure reduction of piston assembly reduces gradually, under the effect of spring 8, piston upper body 6 and piston lower body 7 upwards return to initial position, carry drilling tool slowly, simultaneously, four cutter hubs 10 draw in again in tool body 2, trip out drilling tool, namely complete casing side tracking and to window all operations.
The cutter hub 10 of this section of milling formula casing side tracking window opening tool is equipped with hard alloy blocks, makes the milling effect of cutter hub 10 better; Piston upper body 6 and piston lower body 7, because limited location pressing plate 16 carries out spacing, will cause stroke excessive because of pressure reduction; Limit the maximum milling radius of cutter hub 10, after can ensureing the complete sleeve pipe of milling, the unlikely milling borehole wall is too much; Do not install centralizer, make this section of milling formula casing side tracking window opening tool have the space of laterally sliding, iron filings are more easily taken out of, effectively carry out side-drilling windowing, reduce the milling cycle, greatly reduce the cost of side-drilling windowing.
The above is the detailed description of the invention of this invention, above-mentioned illustrating is not construed as limiting flesh and blood of the present invention, person of an ordinary skill in the technical field can make an amendment above-mentioned detailed description of the invention or be out of shape after having read this manual, and does not deviate from the spirit and scope of the invention.
Claims (7)
1. a section milling formula casing side tracking window opening tool, it is by top connection (1), tool body (2), deflection cone (3), deflection cone seat (5), diversion rod (14), piston assembly is formed, it is characterized in that: tool body (2) upper end is threaded connection and is provided with top connection (1), tool body (2) cavity top is provided with deflection cone seat (5), deflection cone seat (5) passes through bolt, sealing ring (13) is provided with deflection cone (3), diversion rod (14) one end is manufactured with boss, diversion rod (14) is installed on deflection cone (3) bottom by boss, deflection cone (3) is provided with little spring (4) with the junction of diversion rod (14), deflection cone seat (5) bottom in tool body (2) cavity is provided with piston assembly, tool body (2) bottom is provided with knife rest (9), and knife rest (9) is provided with cutter hub (10) by bearing pin (17), tool body (2) lower end is manufactured with taper thread, and tool body (2) is connected with milling shoe by taper thread.
2. a kind of section milling formula casing side tracking window opening tool according to claim 1, it is characterized in that: described piston assembly is made up of piston upper body (6), piston lower body (7), spring (8), support set (11), throttle pipe (15), spacing pressing plate (16), holding nut (18), piston upper body (6) and piston lower body (7) are bolted, and throttle pipe (15) is compressed by piston upper body (6) and is fixedly mounted with; Open in piston lower body (7) and be shaped with runner, and be manufactured with the inner chamber matched with throttle pipe (15) external diameter; Piston lower body (7) is provided with support set (11) by holding nut (18), and support set (11) can do axially-movable with piston lower body (7); Spring (8) is installed between piston lower body (7) and tool body (2); Bottom in tool body (2) cavity is provided with spacing pressing plate (16).
3. a kind of section milling formula casing side tracking window opening tool according to claim 1 and 2, is characterized in that: described throttle pipe (15) top is manufactured with conical cavity, and throttle pipe (15) bottom is mated with piston lower body (7) inner chamber.
4. a kind of section milling formula casing side tracking window opening tool according to claim 1, it is characterized in that: described deflection cone (3) and deflection cone seat (5) are opened all separately and is shaped with three runners (19), three runners (19) of deflection cone (3) and three runner one_to_one corresponding of deflection cone seat (5).
5. a kind of section milling formula casing side tracking window opening tool according to claim 1, it is characterized in that: described knife rest (9) is arranged on tool body (2) by screw, cutter hub (10) is arranged on knife rest (9) by bearing pin (17); The below of cutter hub (10) is provided with limited block (12).
6. a kind of section milling formula casing side tracking window opening tool according to claim 1, it is characterized in that: described cutter hub (10) is provided with four along the circumference of tool body (2) is uniform, four cutter hub (10) length are not identical, by support set (11) with the motion control of piston lower body (7) often the overhang of cutter hub (10).
7. a kind of section milling formula casing side tracking window opening tool according to claim 1, is characterized in that: the wing of described cutter hub (10) is inlaid with hard alloy blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510117234.9A CN104727770A (en) | 2015-03-18 | 2015-03-18 | Section milling type casing pipe sidetracking windowing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510117234.9A CN104727770A (en) | 2015-03-18 | 2015-03-18 | Section milling type casing pipe sidetracking windowing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104727770A true CN104727770A (en) | 2015-06-24 |
Family
ID=53452111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510117234.9A Pending CN104727770A (en) | 2015-03-18 | 2015-03-18 | Section milling type casing pipe sidetracking windowing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104727770A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298423A (en) * | 2015-11-16 | 2016-02-03 | 中国石油集团海洋工程有限公司 | Hydraulic cutter for one-time cutting of multi-layer casing |
| CN108119108A (en) * | 2018-02-08 | 2018-06-05 | 盘锦勇盛利石油科技开发有限公司 | A kind of oil pipe hydraulic pressure perforating device |
| CN108343381A (en) * | 2018-01-22 | 2018-07-31 | 长江大学 | A kind of flexible reaming while drilling device of hydraulic type |
| CN111852322A (en) * | 2020-07-16 | 2020-10-30 | 长江大学 | Bidirectional impactor with composite impact effect |
| CN116291278A (en) * | 2023-04-10 | 2023-06-23 | 洛克维尔（天津）油田技术服务有限公司 | A cutter-type double-layer casing forging and milling machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2178782Y (en) * | 1994-01-11 | 1994-10-05 | 许钰 | Waterpower expanding casing window opening tool |
| CA2314622A1 (en) * | 1999-07-27 | 2001-01-27 | John Phillip Davis | Reuseable cutting and milling tool |
| CN2703117Y (en) * | 2004-05-17 | 2005-06-01 | 新疆石油管理局钻井工艺研究院 | Casing segment milling tool |
| CN202157774U (en) * | 2011-07-29 | 2012-03-07 | 牡丹江通用石油工具有限公司 | Section milling tool |
| CN202280437U (en) * | 2011-11-02 | 2012-06-20 | 夏宪成 | Reverse section milling cutter |
| CN203685093U (en) * | 2013-12-31 | 2014-07-02 | 中国石油集团渤海钻探工程有限公司 | Downhole bushing end mill |
| CN204476332U (en) * | 2015-03-18 | 2015-07-15 | 长江大学 | A kind of section milling formula casing side tracking window opening tool |
-
2015
- 2015-03-18 CN CN201510117234.9A patent/CN104727770A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2178782Y (en) * | 1994-01-11 | 1994-10-05 | 许钰 | Waterpower expanding casing window opening tool |
| CA2314622A1 (en) * | 1999-07-27 | 2001-01-27 | John Phillip Davis | Reuseable cutting and milling tool |
| CN2703117Y (en) * | 2004-05-17 | 2005-06-01 | 新疆石油管理局钻井工艺研究院 | Casing segment milling tool |
| CN202157774U (en) * | 2011-07-29 | 2012-03-07 | 牡丹江通用石油工具有限公司 | Section milling tool |
| CN202280437U (en) * | 2011-11-02 | 2012-06-20 | 夏宪成 | Reverse section milling cutter |
| CN203685093U (en) * | 2013-12-31 | 2014-07-02 | 中国石油集团渤海钻探工程有限公司 | Downhole bushing end mill |
| CN204476332U (en) * | 2015-03-18 | 2015-07-15 | 长江大学 | A kind of section milling formula casing side tracking window opening tool |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298423A (en) * | 2015-11-16 | 2016-02-03 | 中国石油集团海洋工程有限公司 | Hydraulic cutter for one-time cutting of multi-layer casing |
| CN108343381A (en) * | 2018-01-22 | 2018-07-31 | 长江大学 | A kind of flexible reaming while drilling device of hydraulic type |
| CN108119108A (en) * | 2018-02-08 | 2018-06-05 | 盘锦勇盛利石油科技开发有限公司 | A kind of oil pipe hydraulic pressure perforating device |
| CN108119108B (en) * | 2018-02-08 | 2022-02-11 | 盘锦勇盛利石油科技开发有限公司 | Oil pipe hydraulic pressure perforating device |
| CN111852322A (en) * | 2020-07-16 | 2020-10-30 | 长江大学 | Bidirectional impactor with composite impact effect |
| CN111852322B (en) * | 2020-07-16 | 2021-11-02 | 长江大学 | Bidirectional impactor with composite impact effect |
| CN116291278A (en) * | 2023-04-10 | 2023-06-23 | 洛克维尔（天津）油田技术服务有限公司 | A cutter-type double-layer casing forging and milling machine |
| CN116291278B (en) * | 2023-04-10 | 2025-12-12 | 洛克维尔（天津）油田技术服务有限公司 | A cutter-type double-layer sleeve forging milling machine |
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Application publication date: 20150624 |