CN102454380B - 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 PDFInfo
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- CN102454380B CN102454380B CN201010511438.8A CN201010511438A CN102454380B CN 102454380 B CN102454380 B CN 102454380B CN 201010511438 A CN201010511438 A CN 201010511438A CN 102454380 B CN102454380 B CN 102454380B
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- piston
- piston assembly
- drilling tool
- ball
- steel ball
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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
Technical field
The present invention is a kind of automatic steel ball throwing device for water hole of drilling tool during for oil, gas drilling coring operation or other operation.
background technology
In oil, natural gas exploration process, drilling and coring delivery construction operation or other (window, lower tail pipe etc.) operation, need in drilling tool water hole, throw steel ball, to realize the pressure of spraining of cutting the heart or other operation of drilling and coring delivery, sometimes drilling tool can not be mentioned, and need to unload plug from standpipe or water tap (drive on top) and manually throw.When the artificial operation cost of throwing steel ball, effort, and the drilling tool motionless risk that has bit freezing within a certain period of time.
summary of the invention
In order to overcome, artificial throwing steel ball is time-consuming, effort and have the problem of bit freezing risk, and a kind of automatic steel ball throwing device for water hole of drilling tool only utilizes termination of pumping operation just can automatically steel ball be dropped into drilling tool water hole, shortens to greatest extent the pitching time, ensures the continuity of constructing.Object of the present invention is exactly to provide quick and easy a kind of automatic steel ball throwing device for water hole of drilling tool for oilfield construction.
The design scheme that a kind of automatic steel ball throwing device for water hole of drilling tool adopts is: the present invention is made up of body, steel ball, spring, sealing ring, the cover of blocking, piston assembly, piston baffle, piston limit screw rod, nine parts of plunger lock screw rod.Body is that cylindrical shape two ends are processed with gas thread, and radially tube wall is processed with the profiled holes of cylindrical inner cone, communicates with body centre bore, and bellmouth part is installed piston assembly, and circular portion is threaded with piston baffle; The cover of blocking is installed on body interior, spacing by the pin of piston assembly cylinder end face transverse slat.Blocking, it is cylindric to overlap into, and 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 cylinder end face transverse slat.It is conical that piston assembly one end is, and conical portion is installed sealing ring, and the other end is cylindrical, and cylinder end face transverse slat is provided with pin, and circular hole is processed at piston assembly tapering part center, and spring fitting is in circular hole.It is cylindric that piston baffle is, Excircle machining regular screw threads, and center processes waney hole, and piston limit screw rod is connected with the method for screw thread with piston assembly through circular hole, the spring of piston baffle, and plunger lock screw rod is connected with piston limit screw rod threadably.
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 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 by steel-ball limiting, but does not affect the circulation of drilling fluid; After turn on pump is normal, lay down plunger lock screw rod, piston assembly drops into drilling tool water hole by steel ball by turn on pump state automatically to termination of pumping state, turn on pump again after steel ball input drilling tool.Pitching operation can realize the continuity of operation, and the construction that is particularly suitable for coring is used.
Brief description of the drawings:
A kind of automatic steel ball throwing device for water hole of drilling tool schematic diagram of Fig. 1:
1. body 2. piston assembly 3. piston baffles
4. plunger lock screw rod 5. piston limit screw rod 6. springs
7. sealing ring 8. steel balls 9. cover of blocking
Detailed description of the invention
According to Fig. 1, the invention will be further described.
A kind of automatic steel ball throwing device for water hole of drilling tool is made up of body 1, piston assembly 2, piston baffle 3, plunger lock screw rod 4, piston limit screw rod 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, after lower complete column, are connected on drilling tool.The internal diameter of body 1 holds steel ball 8, cover 9 stationary balls 8 of blocking, the piston assembly 2 locking cover 9 of blocking, the 4 mechanical caging piston assemblies 2 of plunger lock screw rod, while not needing pitching by spacing steel ball 8; Now plunger lock screw rod 4 can make piston assembly 2 turn on pumps or termination of pumping can not move.While shedding plunger lock screw rod 4, the pressure inside and outside the drilling tool water hole that piston assembly 2 is born under turn on pump state is greater than the active force of spring 6, this make a concerted effort to make piston assembly 2 will block cover 9 locking; When termination of pumping operation, pressure in drilling tool water hole reduces, the active force of spring 6 is greater than the drilling fluid fluid pressure in the drilling tool water hole that piston assembly 2 bears, the active force of spring 6 overcomes drilling fluid fluid pressure promotion piston assembly 2 and moves a certain distance to drilling tool water hole center, piston assembly 2 will be blocked and be overlapped 9 releases, the cover 9 of blocking moves down under Action of Gravity Field, and steel ball 8 enters drilling tool water hole under Action of Gravity Field, realizes throwing motion.Turn on pump piston assembly 2 sets back under the promotion of drilling liquid pressure again, and fluid pressure promotes piston assembly sealing drilling fluid.
Claims (4)
1. an automatic steel ball throwing device for water hole of drilling tool, formed by body (1), piston assembly (2), piston baffle (3), plunger lock screw rod (4), piston limit screw rod (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 cylindrical shape two ends, radially tube wall is processed with the profiled holes of cylindrical inner cone, communicates with body (1) centre bore; Bellmouth part is installed piston assembly (2), and circular portion is threaded with piston baffle (3); It is conical that piston assembly (2) one end is, and the other end is cylindrical, and cylinder end face transverse slat is provided with pin; Circular hole is processed at piston assembly (2) tapering part center, and spring (6) is installed in circular hole; The cover (9) of blocking is installed on body (1) inside, spacing by the pin of piston assembly (2) cylinder end face transverse slat; Piston baffle (3) center processes waney hole, piston limit screw rod (5) is connected with the method for screw thread with piston assembly (2) through hole, the spring (6) of piston baffle (3), and plunger lock screw rod (4) is connected with piston limit screw rod (5) threadably.
2. a kind of automatic steel ball throwing device for water hole of drilling tool according to claim 1, it is characterized in that: the cover (9) of blocking becomes cylindric, 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) cylinder end face transverse slat.
3. a kind of automatic steel ball throwing device for water hole of drilling tool according to claim 1, is characterized in that: piston assembly (2) conical portion is installed sealing ring (7).
4. a kind of automatic steel ball throwing device for water hole of drilling tool according to claim 1, is characterized in that: piston baffle (3) is cylindric, Excircle machining regular screw threads.
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 CN102454380A (en) | 2012-05-16 |
| CN102454380B true CN102454380B (en) | 2014-07-09 |
Family
ID=46038012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010511438.8A Active CN102454380B (en) | 2010-10-19 | 2010-10-19 | Device for automatically throwing ball into water hole of drilling tool |
Country Status (1)
| Country | Link |
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| CN (1) | CN102454380B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (4)
| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1951988A2 (en) * | 2005-11-24 | 2008-08-06 | Churchill Drilling Tools Limited | Downhole tool |
-
2010
- 2010-10-19 CN CN201010511438.8A patent/CN102454380B/en active Active
Patent Citations (4)
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102454380A (en) | 2012-05-16 |
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