CN1021516C - Underground hydraulic pressure propeller - Google Patents
Underground hydraulic pressure propeller Download PDFInfo
- Publication number
- CN1021516C CN1021516C CN 91110710 CN91110710A CN1021516C CN 1021516 C CN1021516 C CN 1021516C CN 91110710 CN91110710 CN 91110710 CN 91110710 A CN91110710 A CN 91110710A CN 1021516 C CN1021516 C CN 1021516C
- Authority
- CN
- China
- Prior art keywords
- support
- cylinder body
- telescopic shaft
- upper cylinder
- pipe nipple
- 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.)
- Expired - Fee Related
Links
- 238000005553 drilling Methods 0.000 claims abstract description 23
- 210000000078 claw Anatomy 0.000 claims abstract description 15
- 210000002445 nipple Anatomy 0.000 claims description 16
- 239000007788 liquid Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 206010008469 Chest discomfort Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The invention relates to a hydraulic pressure feed underground pressure propeller for drilling horizontal well, which comprises an upper cylinder body 1, an upper piston 4, a telescopic shaft 5, a guide short section 6, a lower piston 7 and a support short section 11, wherein the upper cylinder body 1 is provided with a reversing valve 3 and a flow channel, the support short section 11 is provided with a support reset mechanism consisting of a support claw 8, an inclined block 9 and a spring 10, the hydraulic pressure propeller can be matched with an underground power drilling tool for use, automatically pressurizes a drill bit and feeds the drill rod, and is necessary equipment for drilling operation of the horizontal well, particularly long-distance horizontal well section.
Description
The present invention is the hydraulic type pressure thruster for well that a kind of waterpower pressurization that is used for horizontal well drilling is sent to, and it is and the matching used drilling tool of mud motor.
In oil and geological prospecting drillng operation, the pressure of the drill is that the deadweight by a part of drill string is added on the drill bit and realizes, and along with exploration and development and drilling technology development improve, the design of horizontal well bore is more and more.When horizontal well drilling, drill bit feeding direction and drill string gravity direction are angled, apply the pressure of the drill by drill string gravity to drill bit and just seem very difficult, more be difficult to when particularly angle is 90 ° realize, drilling rod when boring length apart from net horizontal section also can run into same difficulty when sending to, thereby influences bit speed.Traditional way that applies the pressure of the drill to drill bit has seemed very inapplicable during at horizontal well drilling.
The object of the invention provide a kind of with drilling mud as power fluid, do not need drill string deadweight, finish the axial loading of drill bit and creeping of drilling rod automatically, provide the pressure of the drill to send the hydraulic type pressure thruster for well of drilling rod in the down-hole to drill bit.
The technical scheme that the present invention takes is: it by upper cylinder body 1, upper piston 4, telescopic shaft 5, guiding pipe nipple 6, lower piston 7, and support pipe nipple 11 and form, its reversal valve 3 is fixed in upper cylinder body 1 wall, each hydraulic cavities (A, B, C, D) be communicated with at upper cylinder body 1 pars intramuralis, on telescopic shaft 5, have and reversal valve 3 each hydraulic cavities (A, B, C, D) corresponding runner, finish commutation control jointly with reversal valve 3, upper piston 4 fixedly is housed on the telescopic shaft 5, and it can move back and forth in upper cylinder body 1, is linked with to support pipe nipple 11 on telescopic shaft 5.
The technical scheme that the present invention also takes is: support pipe nipple 11 upper hinges and be connected with support claw 8, lower piston 7 and spring 10 are housed in it, the skewback 9 of projection is housed on the lower piston 7, corresponding mutually with groove on the support claw 8, their form support resetting-mechanism.
Operating principle of the present invention is: by reversal valve 3, upper piston 4 epicoeles or the cavity of resorption that give to connect telescopic shaft 5 inject high-pressure slurry, telescopic shaft 5 can be protracted or after contract, when protracting, add axial load to drill bit; After when contracting be provided with supporting mechanism owing to support on the pipe nipple 11, whole drilling rod is creeped forward.
Description of drawings of the present invention is as follows:
Fig. 1 is a hydraulic type pressure thruster for well overall structure schematic diagram;
Fig. 2 is the hydraulic type pressure thruster for well working state schematic representation.
Describe structure of the present invention and operating principle in detail below in conjunction with accompanying drawing.
As shown in Figure 1, hydraulic type pressure thruster for well is mainly by: upper cylinder body 1, spool 2, reversal valve 3, upper piston 4, telescopic shaft 5, guiding pipe nipple 6, lower piston 7, support claw 8, skewback 9, spring 10 and support member such as pipe nipple 11 and form.Reversal valve 3 is fixed in upper cylinder body 1 wall, and (C D) is communicated with at upper cylinder body 1 pars intramuralis each hydraulic cavities for A, B, and the method for connection can adopt fluting and buried pipeline on cylinder body.Be screwed connection between upper cylinder body 1 and the guiding pipe nipple 6 and between telescopic shaft 5 and the support pipe nipple 11.Upper piston 4 fixedly is housed on the telescopic shaft 5, and it can move up and down in upper cylinder body 1.Three support claw 8 circumference uniform distributions are connected on the support pipe nipple 11 by hinge.Lower piston 7 and spring 10 are housed in it, the skewback 9 of three projectioies is housed on the lower piston 7, they are corresponding mutually with groove on the support claw 8.The upper end of hydraulic type pressure thruster for well is connected with drilling rod, and the lower end is connected with mud motor (helicoid hydraulic motor, turbodrill etc.).
The course of work of this structure is: when boring down and pulling out of hole, (state one) as shown in Figure 1.The C, the D chamber that are reversal valve 3 communicate with annular space O, and spool 2, telescopic shaft 5 are all left end (upper).When mud circulation is drilled, high voltage power liquid flows into by upper end U mouth, to the A chamber, the spool 2 of reversal valve 3 moves to right through the P hole, the C chamber is a high pressure when arriving right position, the B chamber communicates with annular space O and is low pressure, causes the M of upper piston 4, the pressure reduction △ P of N both ends of the surface
MN, produce axial force F, F=△ P
MN* S
MN, S
MNBe piston compression face area.Axial force F produces the pressure of the drill and acts on drill bit.Along with the bit cutting rock, telescopic shaft 5 continues to protract, the liquid in upper cylinder body 1 inner chamber through the B chamber to annular space O emptying.When telescopic shaft 5 projects forwardly to right-hand member (the next), (state two) as shown in Figure 2.At the same time, the highly pressurised liquid incoming flow causes V, the W both ends of the surface pressure reduction of lower piston 7, and lower piston drives skewback 9 and moves to left, and support claw 8 is opened, and is supported on the borehole wall.
As shown in Figure 2, the A chamber communicates with annular space O and is low pressure chamber, and it is high pressure chest that the D chamber is communicated with the P hole, and reversal valve 3 commutates to left end, causes B chamber high pressure, C chamber low pressure, and the M of upper piston 4, N both ends of the surface produce pressure reduction △ P
MNDown, telescopic shaft 5 is desired to retreat, but opens because of support claw, is locked on the borehole wall, and telescopic shaft 5 can not retreat, and under the frictional force effect, upper cylinder body 1 is creeped forward together with the drilling rod that guiding pipe nipple 6 drives the back, returns back to state one.So hocket, promptly telescopic shaft 5 protracts, support claw 8 regains, and adds the pressure of the drill; Support claw is opened, and drilling rod is creeped forward, to drill bit pressurization and send drilling rod to.
When the trip-out operation, lay down pump pressure, spring 10 resets lower piston 7, and skewback 9 drives support claws 8 and closes, the unlikely stroke of borehole wall or meet card.
When not drilling a circulating mud operation, with wire rope drilling rod, hydraulic type pressure thruster for well and drilling tool, drill bit combined suspension are got up, drill bit is lifted from the shaft bottom, this moment, support claw was opened, because top pull of steel wire, suppress creeping forward of entire mechanism, reached simple circulating mud and the purpose of not creeping into.
When during as the pulling equipment of continuous hose, connecting one in the upper end of upper cylinder body 1 again and support the pipe nipple assembly, move ahead by the lock out action traction flexible pipe of support claw at the borehole wall with this device.
Hydraulic type pressure thruster for well is automatic control, and is easy to use, and it is a horizontal well drilling, and particularly length is crept into operation apart from net horizontal section provides necessary equipment.
Claims (2)
1, the present invention is the hydraulic type pressure thruster for well that a kind of waterpower pressurization that is used for horizontal well drilling is sent to, by upper cylinder body 1, upper piston 4, telescopic shaft 5, guiding pipe nipple 6, lower piston 7, and support pipe nipple 11 and form, it is characterized in that:
A. reversal valve 3 is fixed in upper cylinder body 1 wall, and (C D) is communicated with at upper cylinder body 1 pars intramuralis each hydraulic cavities for A, B;
B. on telescopic shaft 5, have with reversal valve 3 each hydraulic cavities (A, B, C, D) corresponding runner is finished commutation control jointly with reversal valve 3;
C. on the telescopic shaft 5 upper piston 4 is housed fixedly, it can move back and forth in upper cylinder body 1;
D. on telescopic shaft 5, be linked with and support pipe nipple 11.
2, the hydraulic type pressure thruster for well sent to of a kind of waterpower pressurization that is used for horizontal well drilling according to claim 1, it is characterized in that supporting pipe nipple 11 upper hinges and be connected with support claw 8, lower piston 7 and spring 10 are housed in it, the skewback 9 of projection is housed on the lower piston 7, corresponding mutually with the groove on the support claw 8, they form the support resetting-mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91110710 CN1021516C (en) | 1991-11-19 | 1991-11-19 | Underground hydraulic pressure propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91110710 CN1021516C (en) | 1991-11-19 | 1991-11-19 | Underground hydraulic pressure propeller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1060330A CN1060330A (en) | 1992-04-15 |
| CN1021516C true CN1021516C (en) | 1993-07-07 |
Family
ID=4910237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91110710 Expired - Fee Related CN1021516C (en) | 1991-11-19 | 1991-11-19 | Underground hydraulic pressure propeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1021516C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522828A (en) * | 2017-01-03 | 2017-03-22 | 长江大学 | Pressure-adjustable hydraulic thruster |
| US10301879B2 (en) | 2014-01-21 | 2019-05-28 | Halliburton Energy Services, Inc. | Variable valve axial oscillation tool |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670278B (en) * | 2013-12-11 | 2016-01-13 | 中国石油集团长城钻探工程有限公司 | A kind of continuous-tube electricity liquid machine control directional orientation tool mechanical system |
| CN105003197B (en) * | 2015-07-27 | 2017-03-01 | 盐城市新永佳石油机械制造有限公司 | A kind of full-automatic helicoid hydraulic motor with location structure |
| CN105909199B (en) * | 2016-06-16 | 2019-03-19 | 中国石油集团渤海钻探工程有限公司 | Underground hydraulic propulsion device |
| CN109386242B (en) * | 2017-08-07 | 2021-01-12 | 中国石油化工股份有限公司 | Hydraulic pressure adding bit pressure device |
| CN115467907B (en) * | 2022-11-15 | 2023-03-03 | 西南石油大学 | Drilling fluid displacement controlled drill string torque transmission and separation device and method thereof |
-
1991
- 1991-11-19 CN CN 91110710 patent/CN1021516C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10301879B2 (en) | 2014-01-21 | 2019-05-28 | Halliburton Energy Services, Inc. | Variable valve axial oscillation tool |
| CN106522828A (en) * | 2017-01-03 | 2017-03-22 | 长江大学 | Pressure-adjustable hydraulic thruster |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1060330A (en) | 1992-04-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |