CN107989557B - A kind of shale gas extended reach well drilling well down-hole equipment separating tool - Google Patents
A kind of shale gas extended reach well drilling well down-hole equipment separating tool Download PDFInfo
- Publication number
- CN107989557B CN107989557B CN201711290281.9A CN201711290281A CN107989557B CN 107989557 B CN107989557 B CN 107989557B CN 201711290281 A CN201711290281 A CN 201711290281A CN 107989557 B CN107989557 B CN 107989557B
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- China
- Prior art keywords
- level
- lower contact
- drilling
- top connection
- shale gas
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- 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.)
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- 238000005553 drilling Methods 0.000 title claims abstract description 52
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 210000000078 claw Anatomy 0.000 claims abstract description 10
- 238000013461 design Methods 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 11
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000003780 insertion Methods 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003786 synthesis reaction 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
- E21B17/043—Threaded with locking means
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to shale gas drilling technology field, in particular to a kind of shale gas extended reach well drilling well down-hole equipment separating tool.The second level top connection lower end of the device is multiple elastic claws, multiple elastic claw is limited insertion after set struts and is fixed in second level lower contact inner wall limiting slot, limit sleeve is cut off by second level to be fixed on second level lower contact inner wall, the design of limit set upper side has the ball seat to match with second level steel ball, and second level lower contact upper end dental inlay matches with the dental inlay in second level top connection to be connect.The present invention is realized with two-stage separating mechanism, stuck point top drilling tool can be poured out from stuck point rapidly, use reliability is high, is not in that midway disengages in drilling process, reduce drilling risk, the torque that top drilling tool can be transmitted in drilling, is applied to the drill bit of lower part, tool application method is simple, it is easy to operate, shorten the time of accident treatment, to improve drilling well timeliness, saves drilling cost.
Description
Technical field:
The present invention relates to shale gas drilling technology field, in particular to a kind of shale gas extended reach well drilling well down-hole equipment
Separating tool.
Background technique:
With the depression of global oil price, oil-gas mining cost is constantly squeezed, and shale gas exploitation cost equally carries out great dynamics
Compression shorten drilling period to obtain some conduct on shale gas, improve drilling well timeliness with regard to particularly significant.Prestige
Remote shale gas well is large number of, on the one hand needs adjustment casing programme in time, reduces the overlapping investment of huge fund；On the other hand
Due to Weiyuan shale gas complex geologic conditions, cover pressure and deposit, horizontal well and extended reach well drilling well difficulty are continuously increased, drilling well more
Low efficiency, down-hole accident is multiple, and import rotary steerable tool has seriously affected company's shale gas because serious bit freezing is embedded in well
The process of exploitation.Once occur downhole drill accident, short processing time then one month, it is long then up to 1 year or even longer, expense
At least hundreds of thousands member, more then millions of member losses are huge.Lock of tool drilling how is released rapidly, reduces drilling risk and causality loss
It is the task of top priority of current drilling well work.
All there is limitation in structure when existing reverse buckling type, shear-type and sleeve type safety joint drilling use and lacks
Fall into, main cause: 1, the safety joint of reverse buckling type sawtooth pattern is typical reverse buckling type safety joint, and this connector is to prevent midway
Voluntarily back-off disengages, and the cooperation of screw thread needs certain preload, it is necessary to be screwed on ground with pipe wrench, which results in undergrounds
It is larger to disengage difficulty, and is easy to happen the phenomenon that disengaging from other threaded connection places, poor reliability；2, shear-type safety joint
Be tubing string meet block when, promoted tubing string, by connector pin or copper sheathing cut, to realize disengagement, the tool is when in use
The load of connector or less part need to be calculated, and is easy to be influenced by hole condition and midway is caused to fall off；3, sleeve type safety joint is worked as
When there is tubing string inside and outside differential pressure imbalance in midway or drilling process, pump of easily spraining causes pin to be cut, and it is direct lower tool occur
Fall well.
Summary of the invention:
The technical problem to be solved in the present invention is to provide a kind of shale gas extended reach well drilling well down-hole equipment separating tool,
The arrangement achieves with two-stage separating mechanism, stuck point top drilling tool can be poured out from stuck point rapidly, use reliability is high,
Be not in that midway disengages in drilling process, reduce drilling risk, the torque of top drilling tool can be transmitted in drilling, is applied to
The drill bit of lower part, tool application method is simple, easy to operate, shortens the time of accident treatment, to improve drilling well timeliness, saves and bores
Well cost.Overcome the deficiency for the case where existing separating tool reliability is low, and Yi Fasheng is difficult to safe separating and midway disengagement.
The technical solution used in the present invention is: a kind of shale gas extended reach well drilling well down-hole equipment separating tool, packet
Include second level top connection；Second level top connection lower end is multiple elastic claws, and multiple elastic claw is limited insertion after set struts and is fixed on
In second level lower contact inner wall limiting slot, limit sleeve is cut off by second level to be fixed on second level lower contact inner wall, and limit set upper side is set
In respect of the ball seat to match with second level steel ball, second level lower contact upper end dental inlay matches with the dental inlay in second level top connection to be connect,
Second level lower contact lower end connects top connection, and top connection lower end connects level-one lower contact, top connection lower end by left-handed trapezoidal thread
Dental inlay matches with torsion pass spline set upper side dental inlay to be connect, and torsion pass spline housing is cut off by level-one is connected to level-one lower contact inner wall
On, the design of torsion pass spline set upper side has the ball seat to match with level-one steel ball, and torsion pass spline housing outer wall passes through spline and level-one
Lower contact internal spline matches connection.
It is sealed between torsion pass spline housing and level-one lower contact by O-ring seal I.
It is sealed between top connection and level-one lower contact by O-ring seal II.
It is sealed by O-ring seal III between limit sleeve and second level lower contact, between limit sleeve and second level top connection.
Level-one is cut off to be fixed in level-one lower contact by A type circlip for hole and baffle, and baffle is fixed under level-one
In the circlip groove of connector.
The beneficial effects of the present invention are: the present invention is realized with two-stage separating mechanism, will can block from stuck point rapidly
Point top drilling tool is poured out, and use reliability is high, is not in that midway disengages in drilling process, is reduced drilling risk, can bore
Into when transmit the torque of top drilling tool, be applied to the drill bit of lower part, tool application method is simple, easy to operate, shortens accident treatment
Time save drilling cost to improve drilling well timeliness.
Detailed description of the invention:
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the A-A of Fig. 1 to sectional view.
Fig. 3 is the B-B direction sectional view of Fig. 1.
Fig. 4 is the C-C of Fig. 1 to sectional view.
Fig. 5 is the structural schematic diagram cut off.
Specific embodiment:
As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of shale gas extended reach well drilling well down-hole equipment separating tool, including two
Grade top connection 14；14 lower end of second level top connection is multiple elastic claws, and multiple elastic claw is limited to be embedded in after set 13 struts and fix
In 10 inner wall limiting slot of second level level-one lower contact, play the role of bearing drilling tool pulling force.Limit sleeve 13 cuts off 12 by second level
It is fixed on 10 inner wall of second level level-one lower contact, the design of 13 upper end of limit sleeve has the ball seat to match with second level steel ball 15, second level
10 upper end dental inlay of level-one lower contact matches with the dental inlay in second level top connection 14 to be connect, the connection of 10 lower end of second level level-one lower contact
Top connection 9,9 lower end of top connection connect level-one lower contact 1,9 lower end dental inlay of top connection and torsion pass spline by left-handed trapezoidal thread
It covers 2 upper end dental inlays to match connection, torsion pass spline housing 2 cuts off 6 by level-one and is connected on 1 inner wall of level-one lower contact, torsion pass flower
Key, which covers the design of 2 upper ends, the ball seat to match with level-one steel ball 7, and 2 outer wall of torsion pass spline housing passes through spline and level-one lower contact 1
Internal spline matches connection.
It is sealed between torsion pass spline housing 2 and level-one lower contact 1 by O-ring seal I 3.
It is sealed between top connection 9 and level-one lower contact 1 by O-ring seal II 8.
Pass through between limit sleeve 13 and second level level-one lower contact 10, between limit sleeve 13 and second level top connection 14 O-shaped close
Seal III 11 seals.
It is fixed in level-one lower contact 1, is kept off by A type circlip for hole 4 and baffle 5 as shown in figure 5, level-one cuts off 6
Piece 5 is fixed in the circlip groove of level-one lower contact 1.
The present invention is placed in the bottom section of entire drilling tool when due to using, and is constantly in drilling shape in the construction process
State, thus be subjected to high pump pressure, high tensile, high antitorque, high resistance to compression (will above mention drilling tool energetically, be likely to occur in lower brill when hanging tag
Unexpected blocked portion phenomenon) etc. various complicated applied forces, so selection principle in terms of tool selection are as follows: main body spare and accessory parts are all made of high-strength
Structural alloy steel is spent, the whole synthesis mechanical performance of tool is improved by heat treatment process such as quenched, nitridings, meets special work
The construction demand of condition；Seal assembly is all made of fluorubber resistant to high temperature and is sealed.
In normal drilling operability, the present invention is connected to the upper end of the easy card portion of drilling tool, passes through top connection 9, torsion pass flower
Key set 2 carries out transmitting torque with the dental inlay device of level-one lower contact 1 to each other, passes through top connection 9 and the trapezoidal spiral shell of level-one lower contact 1
Pulling force and pressure are born in line connection.When meeting lock of tool drilling, stop brill, termination of pumping, dismantles top drive or kelly bar puts into one into drilling tool
Grade steel ball 7, turn on pump, which builds the pressure, makes level-one steel ball 7 to enter 2 upper end of torsion pass spline housing, due to the rising of pump pressure, pushes torsion pass spline housing 2
It cuts level-one and cuts off 6, be detached from 2 upper end dental inlay of torsion pass spline housing and 9 lower end dental inlay of top connection, termination of pumping after being pumped decline, so
After rotate forward drilling tool, make lower contact right-hand thread junction separate, promoted take out drilling tool, then carry out next step circulation, set milling, salvage
Work.Stayed in after separating underground tool part can be connect with the salvaging of subsequent tripping in, packaged milling tool it is subsequent continue vertical circulation, it is complete
At subsequent job.If tool cannot separate, second level steel ball 15 can be put into and carry out the second-order separation, second level steel ball 15 enter limit
13 upper end ball seats are covered, pushes limit sleeve 13 to cut second level and cuts off 12,13 downlink of limit sleeve is released to the multiple of second level top connection 14
Multiple elastic claws of the locking of elastic claw, second level top connection 14 are shunk, and second level top connection 14 is separated with second level level-one lower contact 10,
The present invention has two-stage separating mechanism, separates high reliablity.
It is understood that being merely to illustrate the present invention above with respect to specific descriptions of the invention and being not limited to this
Technical solution described in inventive embodiments, those skilled in the art should understand that, still the present invention can be carried out
Modification or equivalent replacement, to reach identical technical effect；As long as meet use needs, all protection scope of the present invention it
It is interior.
Claims (5)
1. a kind of shale gas extended reach well drilling well down-hole equipment separating tool, including second level top connection (14)；It is characterized by:
Second level top connection (14) lower end is multiple elastic claws, and multiple elastic claw is limited to be embedded in after set (13) struts and be fixed under second level
In connector (10) inner wall limiting slot, limit sleeve (13) cuts off (12) by second level and is fixed on second level lower contact (10) inner wall, limit
Position set (13) upper end design has the ball seat to match with second level steel ball (15), connects in second level lower contact (10) upper end dental inlay and second level
Dental inlay on head (14) matches connection, and second level lower contact (10) lower end connection top connection (9), top connection (9) lower end passes through a left side
Winding stair shape is threadedly coupled level-one lower contact (1), and top connection (9) lower end dental inlay and torsion pass spline housing (2) upper end dental inlay match company
It connects, torsion pass spline housing (2) cuts off (6) by level-one and is connected on level-one lower contact (1) inner wall, and torsion pass spline housing (2) upper end is set
In respect of the ball seat to match with level-one steel ball (7), torsion pass spline housing (2) outer wall passes through flower in spline and level-one lower contact (1)
Key matches connection.
2. shale gas extended reach well drilling well down-hole equipment separating tool described in accordance with the claim 1, it is characterised in that: described
It is sealed between torsion pass spline housing (2) and level-one lower contact (1) by O-ring seal I (3).
3. shale gas extended reach well drilling well down-hole equipment separating tool described in accordance with the claim 1, it is characterised in that: described
It is sealed between top connection (9) and level-one lower contact (1) by O-ring seal II (8).
4. shale gas extended reach well drilling well down-hole equipment separating tool described in accordance with the claim 1, it is characterised in that: described
Pass through O-ring seal between limit sleeve (13) and second level lower contact (10), between limit sleeve (13) and second level top connection (14)
III (11) sealing.
5. shale gas extended reach well drilling well down-hole equipment separating tool described in accordance with the claim 1, it is characterised in that: described
Level-one cuts off (6) and is fixed on level-one lower contact (1) by A type circlip for hole (4) and baffle (5), and baffle (5) is fixed on
In the circlip groove of level-one lower contact (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711290281.9A CN107989557B (en) | 2017-12-08 | 2017-12-08 | A kind of shale gas extended reach well drilling well down-hole equipment separating tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711290281.9A CN107989557B (en) | 2017-12-08 | 2017-12-08 | A kind of shale gas extended reach well drilling well down-hole equipment separating tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107989557A CN107989557A (en) | 2018-05-04 |
| CN107989557B true CN107989557B (en) | 2019-07-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711290281.9A Active CN107989557B (en) | 2017-12-08 | 2017-12-08 | A kind of shale gas extended reach well drilling well down-hole equipment separating tool |
Country Status (1)
| Country | Link |
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| CN (1) | CN107989557B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111734329B (en) * | 2020-07-08 | 2021-08-24 | 重庆望江鑫祺机械有限公司 | Button-twisting and punching release device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6305723B1 (en) * | 1998-10-27 | 2001-10-23 | Grant Prideco, L.P. | Tool joint and drill pipe made therefrom |
| US6318470B1 (en) * | 2000-02-15 | 2001-11-20 | Halliburton Energy Services, Inc. | Recirculatable ball-drop release device for lateral oilwell drilling applications |
| WO2005001234A1 (en) * | 2003-06-30 | 2005-01-06 | Todd Andrew Haines | Sub-assembly for drill strings |
| CN101701511B (en) * | 2009-09-29 | 2012-01-25 | 山东墨龙石油机械股份有限公司 | Sucker rod anti-tripping connecting device and manufacturing method thereof |
| CN102425382B (en) * | 2011-09-22 | 2014-06-25 | 中国石油大学(北京) | Dynamic pressure lubrication drilling tool and drilling tool assembly with same |
| NO20121504A1 (en) * | 2012-02-02 | 2013-08-05 | Torsion Tool Company As | Connection and method of providing same |
| US9771762B2 (en) * | 2014-02-07 | 2017-09-26 | Klx Energy Services Llc | Downhole separation apparatus and method |
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2017
- 2017-12-08 CN CN201711290281.9A patent/CN107989557B/en active Active
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| Publication number | Publication date |
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| CN107989557A (en) | 2018-05-04 |
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Effective date of registration: 20201021 Address after: No. 6, liupukang, Xicheng District, Beijing 100120 Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: China National Petroleum Corporation Great Wall Drilling Engineering Co.,Ltd. Address before: 124010 Xinglongtai, Liaoning Province, oil street, No. 96, No. Patentee before: China National Petroleum Corporation Great Wall Drilling Engineering Co.,Ltd. |