CN2480534Y - Jetting suction type shot bit for oil-gas well - Google Patents
Jetting suction type shot bit for oil-gas well Download PDFInfo
- Publication number
- CN2480534Y CN2480534Y CN 01219713 CN01219713U CN2480534Y CN 2480534 Y CN2480534 Y CN 2480534Y CN 01219713 CN01219713 CN 01219713 CN 01219713 U CN01219713 U CN 01219713U CN 2480534 Y CN2480534 Y CN 2480534Y
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- China
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- piston
- valve
- novel jet
- drilling tool
- gas well
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- Expired - Fee Related
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Abstract
A novel jet-attract form impact drilling device for the gas-oil well in the petroleum exploration comprises a valve 6, an outer pipe 7, a piston 8, a ram 12, a lower connector 15 of the anvil, wherein the upper end of the outer pipe 7 is connected with the upper connector 1 and one side in the outer pipe 7 is equipped with the valve 6, the piston 8 and the other side is equipped with the ram 12. The lower end of the outer pipe 7 is connected with the lower connector 15 of the anvil through a splined shaft sleeve 13. The novel jet-attract form impact drilling device is characterized in that the demand for sealing is low and the liquid can flow well in the cavity, besides, the novel jet-attract form impact drilling device has advantages of right principle, easy structure, reliable and safe operation, high drilling speed which improves 25% above, deflecting resistance, stuck release. Further, the novel jet-attract form impact drilling device can reduce the drill collars, the motion components and the vulnerable particles and is suitable for drilling the stiff stratum, besides, the novel jet-attract form impact drilling device elongates the working life of the bit and has no springs which eliminates the fatigue fracture problems.
Description
The utility model belongs to oil gas well novel jet-suction formula percussion drilling tool in the oil drilling.
The impact rotating drilling well is to utilize percussion drilling tool to make its wedging rock with the certain frequency drill hammer, is aided with the revolution drilling again, carries out the technology that compound broken rock creeps into, and at present China's oil oil gas well drilling master is with being to utilize the swinging drilling equipment to carry out rotary drilling.Lower, the easy deflection of its rate of penetration, bit life are short, hard formation difficultly creeps into, deep drilling exploration difficulty etc. more.
China Ministry of Geology and Mineral Resources door uses the impact rotating drilling well early, and effect is obvious.But its well depth is generally more shallow, use water medium more, with oil drilling operating mode and well site situation a great difference arranged, and is difficult to directly quote.The degree of depth of comparing oil drilling with the Ministry of Geology and Mineral Resources door is big, borehole diameter is big, strata pressure is high, bottom hole temperature (BHT) is high, geological condition is complicated, probing is difficult, drilling tool is required high, so will in oil-gas drilling, develop the impact rotating drilling well technology of using, just need research to be suitable for the impact rotating drilling tool that oil sector uses.The kind of percussion drilling tool is existing multiple at present, has from the dynamic medium branch that uses: Pneumatic immpacting drilling tool, hydraulical impact drilling tool, solution-air are mixed percussion drilling tool, mechanical type percussion drilling tool etc.Have from the motoricity credit of the course of work: positive interaction formula, reaction-type, double-acting type (containing jet absorption type, jetting type and valve formula) etc.But unsatisfactory place is arranged respectively in actual applications.
The purpose of this utility model is to provide a kind of impact rotating drilling well advanced technology is introduced oil drilling, can be suitable for the oil drilling operating mode, improve rate of penetration, quality, productivity ratio and economy, the dynamic medium of use simultaneously utilizes the well site existence conditions as far as possible, the convenient use, reduce cost and also can effectively overcome positive interaction formula and reaction-type hydraulical impact drilling tool use spring, the shortcoming of fracture failure, and jetting type easily and some other percussion drilling tool structures are complicated, the oil gas well novel jet-suction formula percussion drilling tool of shortcomings such as difficult processing maintenance.
The utility model is achieved in that by top connection 1, nozzle 2, piston seal lid 3, piston in combination sealing 4, valve combination sealing 5, valve 6, outer tube 7, piston 8, packing ring 9, channel nut 10, cottor pin 11, block stamp 12, hub splines 13, restrictor ring 14, hammering block-lower contact 15 to be formed, nozzle 2 is connected with top connection 1, the upper end of outer tube 7 is connected with top connection 1, side in the outer tube 7 has valve 6, piston 8, opposite side has block stamp 12, and the lower end of outer tube 7 is connected with hammering block-lower contact 15 by hub splines 13.
Piston 8 is arranged in the valve 6,
There is piston seal lid 3 piston 8 ends, and piston in combination sealing 4, valve combination sealing 5 are arranged between valve 6 and the piston 8, and the other end of piston 8 is connected with cottor pin 11 by packing ring 9, channel nut 10.
Hammering block-lower contact 15 is structure as a whole.
Restrictor ring 14 is arranged in hammering block-lower contact 15.
Valve 6 is connected to cone-bolt dual link with block stamp 12, and uses pin locking.
Valve 6 is structure as a whole with outer tube 7.
Advantage of the present utility model is: adopt jet absorption type double acting hydraulical impact, that is: utilize liquid stream to penetrate the suction effect and start impact; Mean double-acting containing: the impulse stroke of percussion tool and the backhaul of percussion tool realize by the liquid stream energy; The implication of hydraulical impact is: use liquid as dynamic medium.To sealing performance require lower, liquid stream smoothness in the chamber is good, principle is correct, simple in structure, use reliable, safety, the rate of penetration height improves more than 25%; Tiltedly anti-; Unfreezing; Can reduce drill collar; Being suitable for hard formation creeps into; Prolong bit life; No spring need not be worried the problem that the spring fatiguability ruptures; Moving component and few easy workout part; Can use general seal.
Accompanying drawing is a structural representation of the present utility model.
Below in conjunction with accompanying drawing the utility model is further described: the utility model is the entrainmenting effect and the pressure and the comprehensive feedback relationship of displacement of valve control Hydrawlic Slave System when utilizing high pressure liquid stream to flow through nozzle, make the valve 6 and the upper and lower cavity of piston 8 produce alternation pressure reduction, promote piston 8 and move back and forth, with shock and vibration dual mode output energy.
Before the work, the top connection 1 of jet absorption type hydraulical impact drilling tool is connected with the rig drill collar, hammering block-lower contact 15 is connected with drill bit.During drilling well, high pressure drilling liquid flows into top connection 1 endoporus through drill collar bore, drives percussion drilling tool work.
Work is from backhaul, and stroke finishes.
(1) backhaul
The valve 6 of percussion drilling tool all is in the stroke lower limit with piston 8 before starting, and fluid course is unimpeded.During startup, working solution penetrates from the nozzle 2 of percussion drilling tool, and the effect of entrainmenting of high-speed jet takes out piston 8 epicoele media toward cavity of resorption, the epicoele rapid depressurization; Enter cavity of resorption liquid stream since passage enlarge, flow velocity slow down and percussion drilling tool draining section restrictor ring 14 on the pressurization of throttle orifice, 8 times cavity pressures of piston are raise; Upper and lower cavity forms pressure reduction, makes the valve 6 that is positioned at the stroke lower limit simultaneously up with piston 8.So backhaul begins.Because the quality of valve 6 is little a lot of than piston 8, movement velocity is fast, arrives at the stroke upper limit earlier, also arrives at the stroke upper limit with back piston 8, and so far, backhaul finishes.
(2) stroke (impulse stroke)
When piston 8 rises in limited time, the top cone (main valve body) and main valve seat closure (valve closes) of the block stamp that fuses with piston 8, water attack is blocked and produced to high velocity liquid stream rapidly, the upper cavity pressure surge; Simultaneously, cavity of resorption is because the supply of liquid stream is blocked, and original liquid continues to flow downward because of inertia, and pressure sharply descends.Promptly when epicoele produced positive water attack, cavity of resorption produced once negative water attack.The upper and lower cavity pressure differential promotes piston 8 and valve 6 moves downward together, and valve is opened gradually, and until impacting hammering block-lower contact 15, valve is all opened, and liquid is smooth logical, and valve and piston enter the backhaul of next circulation again.Go round and begin again and realize that bump cooperates the rotation with drilling tool, realizes while impacting rotating drillng operation.
Claims (7)
1. the oil gas well is with novel jet-suction formula percussion drilling tool, by top connection (1), nozzle (2), piston seal lid (3), piston in combination sealing (4), valve combination sealing (5), valve (6), outer tube (7), piston (8), packing ring (9), channel nut (10), cottor pin (11), block stamp (12), hub splines (13), restrictor ring (14), hammering block-lower contact (15) is formed, it is characterized in that: nozzle (2) is connected with top connection (1), the upper end of outer tube (7) is connected with top connection (1), side in the outer tube (7) has valve (6), piston (8), opposite side has block stamp (12), and the lower end of outer tube (7) is connected with hammering block-lower contact (15) by hub splines (13).
2. oil gas well according to claim 1 is characterized in that: piston (8) is arranged in the valve (6) with novel jet-suction formula percussion drilling tool.
3. oil gas well according to claim 1 novel jet-suction formula percussion drilling tool, it is characterized in that: there is piston seal lid (3) piston (8) end, piston in combination sealing (4), valve combination sealing (5) are arranged between valve (6) and the piston (8), and the other end of piston (8) is connected with cottor pin (11) by packing ring (9), channel nut (10).
4. oil gas well according to claim 1 novel jet-suction formula percussion drilling tool, it is characterized in that: hammering block-lower contact (15) is structure as a whole.
5. oil gas well according to claim 1 is characterized in that: restrictor ring (14) is arranged in hammering block-lower contact (15) with novel jet-suction formula percussion drilling tool.
6. oil gas well according to claim 1 novel jet-suction formula percussion drilling tool, it is characterized in that: valve (6) is connected to cone-bolt dual link with block stamp (12), and uses pin locking.
7. oil gas well according to claim 1 novel jet-suction formula percussion drilling tool, it is characterized in that: valve (6) is structure as a whole with outer tube (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01219713 CN2480534Y (en) | 2001-04-19 | 2001-04-19 | Jetting suction type shot bit for oil-gas well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01219713 CN2480534Y (en) | 2001-04-19 | 2001-04-19 | Jetting suction type shot bit for oil-gas well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2480534Y true CN2480534Y (en) | 2002-03-06 |
Family
ID=33637472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01219713 Expired - Fee Related CN2480534Y (en) | 2001-04-19 | 2001-04-19 | Jetting suction type shot bit for oil-gas well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2480534Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7426965B2 (en) | 2002-01-14 | 2008-09-23 | China Petroleum & Chemical Corporation | Power transmission unit of an impactor, a hydraulic jet impactor and the application thereof |
| CN102536114A (en) * | 2010-12-23 | 2012-07-04 | 中国石油大学(华东) | Mechanical underground vibration-absorption punching drilling tool |
| CN104329019A (en) * | 2014-10-24 | 2015-02-04 | 徐梓辰 | High-frequency drilling impactor |
-
2001
- 2001-04-19 CN CN 01219713 patent/CN2480534Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7426965B2 (en) | 2002-01-14 | 2008-09-23 | China Petroleum & Chemical Corporation | Power transmission unit of an impactor, a hydraulic jet impactor and the application thereof |
| CN102536114A (en) * | 2010-12-23 | 2012-07-04 | 中国石油大学(华东) | Mechanical underground vibration-absorption punching drilling tool |
| CN102536114B (en) * | 2010-12-23 | 2014-06-25 | 中国石油大学(华东) | Mechanical underground vibration-absorption punching drilling tool |
| CN104329019A (en) * | 2014-10-24 | 2015-02-04 | 徐梓辰 | High-frequency drilling impactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |