CN107989557A - 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
- CN107989557A CN107989557A CN201711290281.9A CN201711290281A CN107989557A CN 107989557 A CN107989557 A CN 107989557A CN 201711290281 A CN201711290281 A CN 201711290281A CN 107989557 A CN107989557 A CN 107989557A
- Authority
- CN
- China
- Prior art keywords
- level
- lower contact
- drilling
- top connection
- shale gas
- 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.)
- Granted
Links
- 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
- 238000003780 insertion Methods 0.000 claims abstract description 3
- 230000037431 insertion Effects 0.000 claims abstract description 3
- 238000004804 winding Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 11
- 238000005516 engineering process Methods 0.000 abstract description 3
- 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
- 230000005540 biological transmission 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
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction 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, more particularly to a kind of shale gas extended reach well drilling well down-hole equipment separating tool.The two level top connection lower end of the device is multiple elastic claws, the plurality of elastic claw is limited insertion after set struts and is fixed in two level lower contact inner wall limiting slot, stop collar is cut off by two level to be fixed on two level lower contact inner wall, spacing set upper side is designed with the ball seat to match with two level steel ball, and two level lower contact upper end dental inlay matches with the dental inlay in two level top connection to be connected.The present invention is realized with two-stage separating mechanism, stuck point top drilling tool can be poured out at stuck point rapidly, use reliability is high, is not in that midway disengages in drilling process, reduce drilling risk, the moment of torsion of top drilling tool can be transmitted in drilling, is applied to the drill bit of lower part, instrument application method is simple, it is easy to operate, shorten the time of accident treatment, so as to improve drilling well timeliness, save drilling cost.
Description
Technical field：
The present invention relates to shale gas drilling technology field, more particularly to a kind of shale gas extended reach well drilling well down-hole equipment
Separating tool.
Background technology：
With the depression of global oil price, oil-gas mining cost constantly extrudes, and shale gas exploitation cost equally carries out great dynamics
Compression, to obtain some conduct on shale gas, shorten drilling period, 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
Efficiency is low, and 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 generation downhole drill accident, processing time is short then one month, it is long then up to 1 year or even longer, expense
Hundreds of thousands member at least, at most 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.
Existing reverse buckling type, shear-type and sleeve type safety joint drilling use when structure on all there are limitation and lack
Fall into, its main cause：1st, 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 is screwed on ground with pipe wrench, which results in underground
It is larger to disengage difficulty, and there is a phenomenon where being disengaged from other threaded connection places, poor reliability；2nd, shear-type safety joint
It is when tubing string is met and blocked, lifts tubing string, the pin in connector or copper sheathing are cut, so as to fulfill disengagement, the instrument is when in use
Connector need to be calculated with the load of lower part, and easily influenced by hole condition and cause midway to come off；3rd, sleeve type safety joint is worked as
When occurring 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.
The content 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 at stuck point rapidly, use reliability is high,
Be not in that midway disengages in drilling process, reduce drilling risk, the moment of torsion of top drilling tool can be transmitted in drilling, is applied to
The drill bit of lower part, instrument application method is simple, easy to operate, shortens the time of accident treatment, so as to improve drilling well timeliness, saves and bores
Well cost.Overcome the deficiency that existing separating tool reliability is low, and easily there is a situation where be difficult to safe separating and disengage halfway.
The technical solution used in the present invention is：A kind of shale gas extended reach well drilling well down-hole equipment separating tool, bag
Include two level top connection；Two level top connection lower end is multiple elastic claws, and the plurality of elastic claw is limited insertion after set struts and is fixed on
In two level lower contact inner wall limiting slot, stop collar is cut off by two level to be fixed on two level lower contact inner wall, and spacing set upper side is set
In respect of the ball seat to match with two level steel ball, two level lower contact upper end dental inlay matches with the dental inlay in two level top connection to be connected,
Two level lower contact lower end connects top connection, and top connection lower end connects lower contact, top connection lower end dental inlay by left-handed trapezoidal thread
Match with torsion pass spline set upper side dental inlay and be connected, torsion pass spline housing is connected on lower contact inner wall by cutting off, torsion pass spline
Set upper side is designed with the ball seat to match with steel ball, and torsion pass spline housing outer wall is matched company by spline and lower contact internal spline
Connect.
Sealed between torsion pass spline housing and lower contact by O-ring seal I.
Sealed between top connection and lower contact by O-ring seal II.
Sealed between stop collar and two level lower contact, between stop collar and two level top connection by O-ring seal III.
Cut off and be fixed on by A types circlip for hole and catch in lower contact, catch is fixed on the circlip groove of lower contact
In.
The beneficial effects of the invention are as follows：The present invention is realized with two-stage separating mechanism, will can be blocked at 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 top drilling tool moment of torsion, be applied to the drill bit of lower part, instrument application method is simple, easy to operate, shorten accident treatment
Time, so as to improve drilling well timeliness, save drilling cost.
Brief description of the drawings：
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the structure diagram of the present invention.
Fig. 2 is the A-A of Fig. 1 to profile.
Fig. 3 is the B-B direction profile of Fig. 1.
Fig. 4 is the C-C of Fig. 1 to profile.
Fig. 5 is the structure diagram cut off.
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
Level top connection 14；14 lower end of two level top connection is multiple elastic claws, and the plurality of elastic claw is limited embedded after set 13 struts fix
In 10 inner wall limiting slot of two level lower contact, play the role of bearing drilling tool pulling force.Stop collar 13 cuts off 12 fixations by two level
On 10 inner wall of two level lower contact, 13 upper end of stop collar is designed with the ball seat to match with two level steel ball 15, two level lower contact 10
Upper end dental inlay matches with the dental inlay in two level top connection 14 to be connected, the connection top connection 9 of 10 lower end of two level lower contact, top connection 9
Lower end connects lower contact 1 by left-handed trapezoidal thread, and 9 lower end dental inlay of top connection and 2 upper end dental inlay of torsion pass spline housing match company
Connect, torsion pass spline housing 2 is connected on 1 inner wall of lower contact by cutting off 6, and 2 upper end of torsion pass spline housing is designed with to match with steel ball 7
Ball seat, 2 outer wall of torsion pass spline housing is matched by spline with 1 internal spline of lower contact to be connected.
Sealed between torsion pass spline housing 2 and lower contact 1 by O-ring seal I 3.
Sealed between top connection 9 and lower contact 1 by O-ring seal II 8.
Pass through O-ring seal between stop collar 13 and two level lower contact 10, between stop collar 13 and two level top connection 14
III 11 sealings.
It is fixed on as shown in figure 5, cutting off 6 by A types circlip for hole 4 and catch 5 in lower contact 1, catch 5 is fixed on
In the circlip groove of lower contact 1.
Due to the use of when the present invention be placed in the bottom section of whole drilling tool, and be 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 carry drilling tool, are likely to occur among lower brill energetically when hanging tag
Unexpected blocked portion phenomenon) etc. various complicated applied forces, so instrument selection in terms of selection principle be：Main body spare and accessory parts are using high-strength
Structural alloy steel is spent, the whole synthesis mechanical performance of instrument is improved by heat treatment process such as quenched, nitridings, meets special work
The construction demand of condition；Seal assembly is sealed using heat safe fluorubber.
In normal drilling operability, the present invention is connected to the upper end of the easy card portion of drilling tool, is spent by top connection 9, torsion pass
Key set 2 carries out transmission moment of torsion with the dental inlay device of lower contact 1 to each other, is connected and held with 1 trapezoidal thread of lower contact by top connection 9
By pulling force and pressure.When meeting lock of tool drilling, stop brill, termination of pumping, dismantle top drive or kelly bar puts into steel ball 7, turn on pump into drilling tool
Building the pressure makes steel ball 7 enter 2 upper end of torsion pass spline housing, due to the rising of pump pressure, promotes torsion pass spline housing 2 to cut off 6, makes torsion pass
2 upper end dental inlay of spline housing departs from 9 lower end dental inlay of top connection, and termination of pumping after decline is pumped, then rotates forward drilling tool, make lower contact
Separated in right-hand thread junction, drilling tool is taken out in lifting, then carries out next step circulation, set milling, salvage.Underground is stayed in after separating
Instrument part can be connected with the salvaging of follow-up tripping in, packaged milling tool follow-up continues vertical circulation, completion subsequent job.If instrument is not
When can separate, two level steel ball 15 can be put into and carry out the second-order separation, two level steel ball 15 enters 13 upper end ball seat of stop collar, promotes spacing
The cutting of set 13 two level cuts off 12, and 13 downlink of stop collar releases the locking to multiple elastic claws of two level top connection 14, is connect in two level
First 14 multiple elastic claws are shunk, and two level top connection 14 is separated with two level lower contact 10, and the present invention has two-stage separating mechanism, point
From reliability height.
It is understood that above with respect to the specific descriptions of the present invention, it is merely to illustrate the present invention and is not limited to this
The described technical solution of inventive embodiments, it will be understood by those of ordinary skill in the art that, still the present invention can be carried out
Modification or equivalent substitution, to reach identical technique 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 two level top connection (14)；It is characterized in that：
Two level top connection (14) lower end is multiple elastic claws, and the plurality of elastic claw is limited insertion after set (13) struts and is fixed under two level
In connector (10) inner wall limiting slot, stop collar (13) cuts off (12) by two level and is fixed on two level lower contact (10) inner wall, limit
Position set (13) upper end is designed with the ball seat to match with two level steel ball (15), and two level lower contact (10) upper end dental inlay in two level with connecing
Dental inlay on head (14) matches connection, and two level lower contact (10) lower end connects top connection (9), and top connection (9) lower end passes through a left side
Winding stair shape is threadedly coupled lower contact (1), and top connection (9) lower end dental inlay matches with torsion pass spline housing (2) upper end dental inlay to be connected, and passes
Turn round spline housing (2) to be connected on lower contact (1) inner wall by cutting off (6), torsion pass spline housing (2) upper end is designed with and steel ball (7)
The ball seat to match, torsion pass spline housing (2) outer wall is matched by spline with lower contact (1) internal spline to be connected.
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：It is described
Sealed between torsion pass spline housing (2) and 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：It is described
Sealed between top connection (9) and 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：It is described
Pass through O-ring seal between stop collar (13) and two level lower contact (10), between stop collar (13) and two level top connection (14)
III (11) seal.
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：It is described
Cut off (6) to be fixed in lower contact (1) by A types circlip for hole (4) and catch (5), catch (5) is fixed on lower contact
(1) in circlip groove.
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 true CN107989557A (en) | 2018-05-04 |
| CN107989557B CN107989557B (en) | 2019-07-16 |
Family
ID=62036579
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 |
|---|---|
| CN (1) | CN107989557B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111734329A (en) * | 2020-07-08 | 2020-10-02 | 重庆望江鑫祺机械有限公司 | Button-twisting and punching release device |
Citations (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 |
| CN1401045A (en) * | 2000-02-15 | 2003-03-05 | 哈利伯顿能源服务公司 | 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 |
| CN101701511A (en) * | 2009-09-29 | 2010-05-05 | 山东墨龙石油机械股份有限公司 | Sucker rod anti-tripping connecting device and manufacturing method thereof |
| CN102425382A (en) * | 2011-09-22 | 2012-04-25 | 中国石油大学(北京) | Dynamic pressure lubrication drilling tool and drilling tool assembly with same |
| WO2013115649A1 (en) * | 2012-02-02 | 2013-08-08 | Torsion Tool Company As | Coupling and method for providing same |
| US20150226018A1 (en) * | 2014-02-07 | 2015-08-13 | Toby Scott Baudoin | Downhole Separation Apparatus and Method |
-
2017
- 2017-12-08 CN CN201711290281.9A patent/CN107989557B/en active Active
Patent Citations (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 |
| CN1401045A (en) * | 2000-02-15 | 2003-03-05 | 哈利伯顿能源服务公司 | 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 |
| CN101701511A (en) * | 2009-09-29 | 2010-05-05 | 山东墨龙石油机械股份有限公司 | Sucker rod anti-tripping connecting device and manufacturing method thereof |
| CN102425382A (en) * | 2011-09-22 | 2012-04-25 | 中国石油大学(北京) | Dynamic pressure lubrication drilling tool and drilling tool assembly with same |
| WO2013115649A1 (en) * | 2012-02-02 | 2013-08-08 | Torsion Tool Company As | Coupling and method for providing same |
| US20150226018A1 (en) * | 2014-02-07 | 2015-08-13 | Toby Scott Baudoin | Downhole Separation Apparatus and Method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111734329A (en) * | 2020-07-08 | 2020-10-02 | 重庆望江鑫祺机械有限公司 | Button-twisting and punching release device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107989557B (en) | 2019-07-16 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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| TR01 | Transfer of patent right |
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. |
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| TR01 | Transfer of patent right |