CN102454380A - Device for automatically throwing ball into water hole of drilling tool - Google Patents

Device for automatically throwing ball into water hole of drilling tool Download PDF

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Publication number
CN102454380A
CN102454380A CN2010105114388A CN201010511438A CN102454380A CN 102454380 A CN102454380 A CN 102454380A CN 2010105114388 A CN2010105114388 A CN 2010105114388A CN 201010511438 A CN201010511438 A CN 201010511438A CN 102454380 A CN102454380 A CN 102454380A
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CN
China
Prior art keywords
piston
ball
piston assembly
drilling tool
screw rod
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
Application number
CN2010105114388A
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Chinese (zh)
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CN102454380B (en
Inventor
周洪国
朱杰然
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Petrochemical Corp
Drilling Technology Research Institute of Sinopec Shengli Petroleum Administration Bureau
Original Assignee
China Petrochemical Corp
Drilling Technology Research Institute of Sinopec Shengli Petroleum Administration Bureau
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by China Petrochemical Corp, Drilling Technology Research Institute of Sinopec Shengli Petroleum Administration Bureau filed Critical China Petrochemical Corp
Priority to CN201010511438.8A priority Critical patent/CN102454380B/en
Publication of CN102454380A publication Critical patent/CN102454380A/en
Application granted granted Critical
Publication of CN102454380B publication Critical patent/CN102454380B/en
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Anticipated expiration legal-status Critical

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Abstract

The invention relates to a device for automatically throwing a ball into a water hole of a drilling tool. The device mainly comprises nine parts such as a body, a piston assembly, a piston blocking plate, a piston locking screw, a piston limiting screw, a spring, a sealing ring, a steel ball and a ball blocking sleeve, wherein the steel ball is accommodated in the body and fixed by the ball blocking sleeve; the ball blocking sleeve is locked by the piston assembly; the piston assembly is mechanically locked by the piston locking screw; the steel ball is limited by the body, the ball blocking sleeve, the piston assembly and the piston locking screw when the ball is not required to be thrown, but the circulation of drilling fluid is not influenced; and the piston locking screw is detached in the process before the ball is thrown, and the steel ball is automatically thrown into the water hole of the drilling tool by pump stop operation. The device for automatically throwing the ball into the water hole of the drilling tool can automatically throw the ball by pump stop operation, is time-saving, labor-saving, safe and reliable, can realize operation continuity, and is particularly suitable for coring construction.

Description

A kind of drilling tool hydrophthalmia automatic ball-throwing apparatus
Technical field
The present invention is a kind of drilling tool hydrophthalmia automatic ball-throwing apparatus when being used for oil, gas drilling coring operation or other operation.
Background technology
In oil, the natural gas exploration process; Drilling and coring delivery construction operation or other (windowing, descend tail pipe etc.) operation; Need in the drilling tool hydrophthalmia, throw steel ball; So that realize the pressure of spraining of cutting the heart or other operation of drilling and coring delivery, drilling tool can not be mentioned sometimes, need unload the artificial throwing of plug from standpipe or water tap (drive on the top).During the artificial operation cost of throwing steel ball, effort, and the motionless within a certain period of time risk that has bit freezing of drilling tool.
Summary of the invention
Artificial throw that steel ball is time-consuming for overcoming, effort and have the problem of bit freezing risk, a kind of drilling tool hydrophthalmia automatic ball-throwing apparatus only utilizes the termination of pumping operation just can automatically steel ball be dropped into the drilling tool hydrophthalmia, shortens the pitching time to greatest extent, guarantees the continuity of constructing.The object of the invention is exactly for oilfield construction quick and easy a kind of drilling tool hydrophthalmia automatic ball-throwing apparatus to be provided.
The design scheme that a kind of drilling tool hydrophthalmia automatic ball-throwing apparatus is adopted is: the present invention is made up of body, steel ball, spring, sealing ring, the cover of blocking, piston assembly, piston baffle, the spacing screw rod of piston, nine parts of plunger lock screw rod.Body is processed with gas thread for the cylindrical shape two ends, and radially tube wall is processed with the profiled holes of cylindrical inner cone, communicates with the body centre bore, and bellmouth is partly installed piston assembly, and circular portion is threaded with piston baffle; The cover of blocking is installed on body interior, and is spacing by the pin of piston assembly end transverse slat.Blocking, it is cylindric to overlap into, and the side, upper end processes a circular hole, and its opposite flank processes a groove groove, and circular hole is connected with the pin of piston assembly.It is conical that piston assembly one end is, and conical portion is installed sealing ring, and the other end is cylindrical, and the transverse slat of cylinder end face is equipped with pin, and circular hole is processed at piston assembly tapering part center, and spring is installed in the circular hole.It is cylindric that piston baffle is, cylindrical processing regular screw threads, and the center processes waney hole, and circular hole, spring that the spacing screw rod of piston passes piston baffle are connected with the method for piston assembly with screw thread, and the plunger lock screw rod is connected with the spacing screw rod of engage thread and piston.
Advantage of the present invention is: compact conformation, easy to operate, safe and reliable.This physical efficiency is connected with drilling rod, according in good time being connected on the drilling rod of technological requirement; Seal fluid power helps envelope, can bear high pressure; Plunger lock screw rod mechanism lock piston assembly, no matter turn on pump or termination of pumping, piston assembly can not be moved and steel ball is spacing, but does not influence the circulation of drilling fluid; Lay down the plunger lock screw rod after turn on pump is normal, piston assembly drops into the drilling tool hydrophthalmia with steel ball by the turn on pump state to the termination of pumping state automatically, turn on pump once more behind the steel ball input drilling tool.The pitching operation can realize the continuity of operation, and the construction that is particularly suitable for coring is used.
Description of drawings:
A kind of drilling tool hydrophthalmia of Fig. 1 automatic ball-throwing apparatus sketch map:
1. body 2. piston assemblies 3. piston baffles
4. spacing screw rod 6. springs of plunger lock screw rod 5. pistons
7. sealing ring 8. steel balls 9. cover of blocking
The specific embodiment
According to Fig. 1 the present invention is further described.
A kind of drilling tool hydrophthalmia automatic ball-throwing apparatus is made up of the spacing screw rod of body 1, piston assembly 2, piston baffle 3, plunger lock screw rod 4, piston 5, spring 6, sealing ring 7, steel ball 8, cover 9 nine parts of blocking.
Body 1 two ends can be connected with drill rod thread, are connected on the drilling tool behind the following intact column.The internal diameter of body 1 holds steel ball 8, cover 9 stationary balls 8 of blocking, and piston assembly 2 lockings are blocked and are overlapped 9, and the 4 mechanical caging piston assemblies 2 of plunger lock screw rod are spacing with steel ball 8 when not needing pitching; Plunger lock screw rod 4 can make piston assembly 2 turn on pumps or termination of pumping can not move at this moment.When shedding plunger lock screw rod 4, the pressure of piston assembly 2 inside and outside the drilling tool hydrophthalmia that bears under the turn on pump state is greater than the active force of spring 6, and this makes a concerted effort to make piston assembly 2 cover 9 lockings of will blocking; During the termination of pumping operation; Pressure in the drilling tool hydrophthalmia reduces, the drilling fluid fluid pressure in the drilling tool hydrophthalmia that the active force of spring 6 bears greater than piston assembly 2, and the force drilling fluid fluid pressure of spring 6 promotes piston assembly 2 and moves certain distance to drilling tool hydrophthalmia center; Piston assembly 2 will be blocked and overlapped 9 releases; The cover 9 of blocking moves down under action of gravity, and steel ball 8 is entering drilling tool hydrophthalmia under action of gravity, realizes throwing motion.Turn on pump piston assembly 2 sets back under the promotion of drilling liquid pressure once more, and fluid pressure promotes piston assembly sealing drilling fluid.

Claims (4)

1. a drilling tool hydrophthalmia automatic ball-throwing apparatus is made up of body (1), piston assembly (2), piston baffle (3), plunger lock screw rod (4), the spacing screw rod of piston (5), spring (6), sealing ring (7), steel ball (8), the cover (9) of blocking; It is characterized in that: body (1) is processed with gas thread for the cylindrical shape two ends; Radially tube wall is processed with the profiled holes of cylindrical inner cone; Communicate with body (1) centre bore, bellmouth is partly installed piston assembly (2), and circular portion is threaded with piston baffle (3); The cover (9) of blocking is installed on body (1) inside, and is spacing by the pin of piston assembly (2) end transverse slat.
2. a kind of drilling tool hydrophthalmia automatic ball-throwing apparatus according to claim 1 is characterized in that: the cover (9) of blocking becomes cylindric, and the side, upper end processes a circular hole, and its opposite flank processes a groove groove, and circular hole is connected with the pin of piston assembly (2).
3. a kind of drilling tool hydrophthalmia automatic ball-throwing apparatus according to claim 1 is characterized in that: piston assembly (2) one ends are conical, and conical portion is installed sealing ring (7); The other end is cylindrical, and the transverse slat of cylinder end face is equipped with pin; Circular hole is processed at piston assembly (2) tapering part center, and spring (6) is installed in the circular hole.
4. a kind of drilling tool hydrophthalmia automatic ball-throwing apparatus according to claim 1; It is characterized in that: piston baffle (3) is cylindric; Cylindrical processing regular screw threads; The center processes waney hole, and circular hole, spring (6) that the spacing screw rod of piston (5) passes piston baffle (3) are connected with the method for piston assembly (2) with screw thread, and plunger lock screw rod (4) is connected with the spacing screw rod of engage thread and piston (5).
CN201010511438.8A 2010-10-19 2010-10-19 Device for automatically throwing ball into water hole of drilling tool Active CN102454380B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201010511438.8A CN102454380B (en) 2010-10-19 2010-10-19 Device for automatically throwing ball into water hole of drilling tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201010511438.8A CN102454380B (en) 2010-10-19 2010-10-19 Device for automatically throwing ball into water hole of drilling tool

Publications (2)

Publication Number Publication Date
CN102454380A true CN102454380A (en) 2012-05-16
CN102454380B CN102454380B (en) 2014-07-09

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106545310A (en) * 2015-09-18 2017-03-29 中国石油化工股份有限公司 A kind of down-hole automatic ball-throwing ball seat
CN106639979A (en) * 2015-10-30 2017-05-10 中石化石油工程技术服务有限公司 Cock type ball casting device for oil drilling

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200996275Y (en) * 2007-01-12 2007-12-26 辽河石油勘探局 Hydraulic pressurized center cutter
CN201031662Y (en) * 2007-04-11 2008-03-05 中国石化集团中原石油勘探局钻井工程技术研究院 Down-hole controllable type boring tool by-pass valve
US20090056952A1 (en) * 2005-11-24 2009-03-05 Andrew Philip Churchill Downhole Tool
CN201254983Y (en) * 2008-09-11 2009-06-10 中国石油新疆油田分公司采油工艺研究院 Multi-ball injector
CN201818275U (en) * 2010-10-19 2011-05-04 中国石油化工集团公司 Automatic steel ball throwing device for water hole of drilling tool

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090056952A1 (en) * 2005-11-24 2009-03-05 Andrew Philip Churchill Downhole Tool
CN200996275Y (en) * 2007-01-12 2007-12-26 辽河石油勘探局 Hydraulic pressurized center cutter
CN201031662Y (en) * 2007-04-11 2008-03-05 中国石化集团中原石油勘探局钻井工程技术研究院 Down-hole controllable type boring tool by-pass valve
CN201254983Y (en) * 2008-09-11 2009-06-10 中国石油新疆油田分公司采油工艺研究院 Multi-ball injector
CN201818275U (en) * 2010-10-19 2011-05-04 中国石油化工集团公司 Automatic steel ball throwing device for water hole of drilling tool

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106545310A (en) * 2015-09-18 2017-03-29 中国石油化工股份有限公司 A kind of down-hole automatic ball-throwing ball seat
CN106545310B (en) * 2015-09-18 2019-02-15 中国石油化工股份有限公司 A kind of underground automatic ball-throwing ball seat
CN106639979A (en) * 2015-10-30 2017-05-10 中石化石油工程技术服务有限公司 Cock type ball casting device for oil drilling

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