CN204419024U - Pulsation low pressure rotary percussion drilling motor - Google Patents
Pulsation low pressure rotary percussion drilling motor Download PDFInfo
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- CN204419024U CN204419024U CN201520067781.6U CN201520067781U CN204419024U CN 204419024 U CN204419024 U CN 204419024U CN 201520067781 U CN201520067781 U CN 201520067781U CN 204419024 U CN204419024 U CN 204419024U
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Abstract
A kind of pulsation low pressure rotary percussion drilling motor, forms primarily of shell body, hydraulically operated equipment, shaft coupling, upper valve, lower valve and power transmission shaft; Shell body inside installs the hydraulically operated equipment and power transmission shaft that are in transmission connection from top to bottom; Power transmission shaft is hollow tubular, power transmission shaft top is processed with the first by-pass prot, the middle part inwall circumference that are communicated with hydraulically operated equipment and is processed with pressure chamber, the power transmission shaft inwall of the upper and lower both sides of pressure chamber is processed with respectively upper limit position groove and lower limit groove, install valve and lower valve in power transmission shaft respectively, upper valve, lower valve are processed with spacer pin respectively and respectively by spacer pin and upper limit position groove, lower limit slot fit realize valve, lower valve in power transmission shaft slide up and down and spacing.The utility model breaks on the basis of rock at bit, add pulsation low pressure and rotary impact two kinds of efficient rock-breaking modes, this just significantly improves crushing efficiency and the bit speed of rock, and drilling quality meets design standard, achieves low energy consumption, high efficiency drilling well object.
Description
Technical field
The utility model relates to drilling equipment field, specifically a kind of pulsation low pressure rotary percussion drilling motor for industries such as oil and gas well drilling, CBM Drilling, geological prospecting, mine probings.
Background technology
Well dynamic motor is still the drilling tool of main application both at home and abroad at present, in the industry fields such as oil and gas well drilling, CBM Drilling, geological prospecting, mine probing, completes the wellbore construction task of more than 95%.But in drilling process, under existing well, power motor is except the rotating speed providing drill bit to break rock and moment of torsion, does not possess the function of other efficient rock-breakings.Result of study and field practice show, the low-pressure state of shaft bottom pulsating nature effectively can reduce the resistant to breakage ability of rock, promote that rock departs from parent fast, contribute to improving bit speed, drill bit applies the shock loading with certain frequency, drill bit can be increased instantaneously and dial pressure from rock, thus improve the efficiency of breaking rock of drill bit, all carry out the research of pulsation low pressure generator and rotary percussion drill by driving well tool both at home and abroad, effect of field application is good, but the applicable cases of well dynamic motor is coordinated about two kinds of instruments, be not reported both at home and abroad, according to the design feature of well dynamic motor, simply two kinds of efficient well drilling and rock crushing devices can not be connected with well dynamic motor combination, not only do not reach the object improving bit speed, also may affect the result of use of motor or cause the generation of downhole safety accident.Therefore a kind of structure of design research and development is badly in need of simple, dependable performance, control accuracy is high, easy to operate pulsation low pressure rotating drilling motor, this, for performance well dynamic motor technologies advantage, improves the efficiency of well drilling and rock crushing further, promotes the technology level of China's power motor drilling well, enhance our international competitiveness, form the pulsation low pressure rotating drilling motor technologies with independent intellectual property right and there is important economic worth and social value.
Utility model content
In order to improve the efficiency of breaking rock of well dynamic motor further, give full play to the advantage of pulsation low pressure and rotary impact two kinds of efficient rock-breaking technology, reach the requirement of petroleum resources Efficient Development, the pulsation low pressure rotary percussion drilling motor that the utility model provides a kind of structure simple, easy to operate.
The technical solution of the utility model is: form primarily of shell body, hydraulically operated equipment, shaft coupling, upper valve, lower valve and power transmission shaft; Described shell body inside installs the hydraulically operated equipment and power transmission shaft that are in transmission connection from top to bottom; Described power transmission shaft is hollow tubular, described power transmission shaft top is processed with the first by-pass prot, the middle part inwall circumference that are communicated with hydraulically operated equipment and is processed with pressure chamber, the power transmission shaft inwall of the upper and lower both sides of described pressure chamber is processed with respectively upper limit position groove and lower limit groove, install valve and lower valve in described power transmission shaft respectively, described upper valve, lower valve are processed with spacer pin respectively and respectively by spacer pin and upper limit position groove, lower limit slot fit realize valve, lower valve in power transmission shaft slide up and down and spacing; The bottom of described upper valve is processed with the second by-pass prot, and when described upper valve, lower valve are all positioned at lower dead center, the second by-pass prot is communicated with pressure chamber groove, now goes up valve, pressure chamber and lower valve and forms fluid passage; When described lower valve slides to top dead centre, the fluid passage described in its upper surface can contact with the lower surface of upper valve and close, and the upper valve of promotion slides into top dead centre.
Such scheme is more preferably:
Described hydraulically operated equipment is connected by shaft coupling with power transmission shaft, connects simple and convenient and is convenient to dismounting.
The first described by-pass prot is the through hole designed obliquely, reduces the pressure loss of liquid stream.
Form annular space space between the top of described upper valve and power transmission shaft inwall, and be provided with buffer spring in annular space space, buffer spring can play cushioning effect, protection valve body; Annular space space can be following design: the power transmission shaft inwall on the upside of described upper limit position groove is provided with the circumferential step extended to axle center, header structure sized by the top of described upper valve, the little head part of described power transmission shaft inwall, circumferential step and upper valve surrounds mutually the annular space space described in formation.
The utility model breaks on the basis of rock at bit, adds pulsation low pressure and rotary impact two kinds of efficient rock-breaking modes, and this just significantly improves crushing efficiency and the bit speed of rock, and effect is remarkable.According to statistics, average individual well saves drilling period 10-15 days, and save fuel consume 8-10 ton, drilling efficiency improves 67%, and drilling quality meets design standard, achieves low energy consumption, high efficiency drilling well object.Pulsation low pressure rotary percussion drilling motor enters for the efficient quick drill of the complex structural wells such as extended reach well, long horizontal sections horizontal well, multilevel branch well, the accurate control of wellbore quality, extend drill bit and drilling tool application life, reduce energy consumption and integrated cost, increase economic efficiency significant.Meanwhile, low pressure rotary percussion drilling motor of pulsing also has that structure design is simple, dependable performance, the feature such as easy to operate.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the utility model;
In figure: valve, 12-power transmission shaft under 1-shell body, 2-hydraulically operated equipment, 3-shaft coupling, 4-first by-pass prot, 5-buffer spring, the upper valve of 6-, 7.1-upper limit position groove, 7.2-lower limit groove, 8-spacer pin, 9-second by-pass prot, 10-pressure chamber, 11-.
Detailed description of the invention
The present invention is described in detail below in conjunction with accompanying drawing.
As Fig. 1, a kind of pulsation low pressure rotary percussion drilling motor, it is inner that hydraulically operated equipment 2 is arranged on shell body 1, be connected with power transmission shaft 12 top by shaft coupling 3, power transmission shaft 12 top processes the first by-pass prot 4, it is inner that upper valve 6 is arranged on power transmission shaft 12, between upper valve 6 and power transmission shaft 12, buffer spring 5 is installed, power transmission shaft 12 is processed upper limit position groove 7.1 and lower limit groove 7.2, upper valve processing spacer pin 8, and coordinate with upper limit position groove 7.1, upper valve 6 bottom processes the second by-pass prot 9, power transmission shaft 12 is processed with pressure chamber 10, lower valve 11 is arranged on the inside of power transmission shaft 12, lower valve processing spacer pin 8, and coordinate with lower limit groove 7.2, second by-pass prot 9 of upper valve 6 all can move to the top of lower valve 11 and be positioned at pressure chamber 10.
Pulsation low pressure rotary percussion drilling motor is arranged between drilling assembly and drill bit, and the upper valve 6 in original state pulsation low pressure rotary percussion drilling motor is all positioned at lower dead center under gravity with lower valve 11.When starting wellbore construction, first drilling fluid arrives hydraulically operated equipment 2, hydraulically operated equipment 2 starts to rotate under the pressure effect of drilling fluid, power transmission shaft 12 is driven to rotate by shaft coupling 3, drilling fluid is after hydraulically operated equipment 2, power transmission shaft inside is entered by first by-pass prot 4 on power transmission shaft 12 top, and enter in valve 6, pressure chamber 10 is entered by the second by-pass prot 9 of upper valve 6, then lower valve 11 is entered, the pressure drop that drilling fluid produces when lower valve 11 starts to promote lower valve 11 and moves up, instantly when the upper surface of valve 11 contacts with the lower surface of upper valve 6, the runner of drilling fluid is closed instantaneously, the drilling fluid of lower valve 11 bottom continues flow and enter annular space under the effect of inertia, because runner is closed, there is no follow-up incoming flow, now drill bit near zone in shaft bottom will form low-pressure area, thus reach the object reducing chip hold down effect, be conducive to rock and depart from parent fast, improve efficiency of breaking rock, lower valve 11 moves up and to contact with upper valve 6 when cutting out runner, on promoting under the effect of inertia, valve 6 moves up the top dead centre of supreme valve 6, now because runner closes the surge wave promotion produced, above valve 6 and lower valve 11 move down simultaneously, when arriving the lower dead center of upper valve 6, upper valve 6 stops, lower valve 11 continues to move down, and quick washing is to lower dead center, thereby produce the downward axial impact loading acted on drill bit, add instantaneous the pressure of the drill that drill bit breaks rock, improve drill bit efficiency of breaking rock, meanwhile runner is opened, drilling fluid arrives drill bit, complete cooling, cleaning, take the functions such as rock.As long as drilling fluid arrives lower valve, pressure drop will start to promote lower valve and move up, thus constantly repeat the process of unlatching-closedown-unlatching, so just while shaft bottom drill bit near zone produces pulsation low-pressure state, also on drill bit, be applied with shock loading, thus significantly improve efficiency of breaking rock and the bit speed of motor drilling technology.If when the component of pulsation low pressure rotary percussion drilling motor internal is damaged and cannot normally works, upper valve and lower valve are in lower dead center all under gravity, inner flow passage can not be closed, drilling fluid can reach drill bit smoothly and enter annular space, low pressure rotary percussion drilling motor of now pulsing still can drive bit to break rock, complete conventional drilling technique, need not pull out of hole because internals damages and change drilling tool, thus save the time made a trip, reduce the consumption of fuel oil, decrease the discharge pollution on the environment of pernicious gas.
For those skilled in the art, under the prerequisite not departing from the utility model principle, likely to concrete size, or partial structurtes make some improvements and modifications, and these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. a pulsation low pressure rotary percussion drilling motor, is characterized in that: form primarily of shell body, hydraulically operated equipment, shaft coupling, upper valve, lower valve and power transmission shaft; Described shell body inside installs the hydraulically operated equipment and power transmission shaft that are in transmission connection from top to bottom; Described power transmission shaft is hollow tubular, described power transmission shaft top is processed with the first by-pass prot, the middle part inwall circumference that are communicated with hydraulically operated equipment and is processed with pressure chamber, the power transmission shaft inwall of the upper and lower both sides of described pressure chamber is processed with respectively upper limit position groove and lower limit groove, install valve and lower valve in described power transmission shaft respectively, described upper valve, lower valve are processed with spacer pin respectively and respectively by spacer pin and upper limit position groove, lower limit slot fit realize valve, lower valve in power transmission shaft slide up and down and spacing; The bottom of described upper valve is processed with the second by-pass prot, and when described upper valve, lower valve are all positioned at lower dead center, the second by-pass prot is communicated with pressure chamber groove, now goes up valve, pressure chamber and lower valve and forms fluid passage; When described lower valve slides to top dead centre, the fluid passage described in its upper surface can contact with the lower surface of upper valve and close, and the upper valve of promotion slides into top dead centre.
2. pulsation low pressure rotary percussion drilling motor according to claim 1, it is characterized in that, described hydraulically operated equipment is connected by shaft coupling with power transmission shaft.
3. pulsation low pressure rotary percussion drilling motor according to claim 1, it is characterized in that, the first described by-pass prot is the through hole designed obliquely.
4. pulsation low pressure rotary percussion drilling motor according to claim 1, is characterized in that, form annular space space, and be provided with buffer spring in annular space space between the top of described upper valve and power transmission shaft inwall.
5. pulsation low pressure rotary percussion drilling motor according to claim 4, it is characterized in that, power transmission shaft inwall on the upside of described upper limit position groove is provided with the circumferential step extended to axle center, header structure sized by the top of described upper valve, the little head part of described power transmission shaft inwall, circumferential step and upper valve surrounds mutually the annular space space described in formation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520067781.6U CN204419024U (en) | 2015-01-31 | 2015-01-31 | Pulsation low pressure rotary percussion drilling motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520067781.6U CN204419024U (en) | 2015-01-31 | 2015-01-31 | Pulsation low pressure rotary percussion drilling motor |
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| CN204419024U true CN204419024U (en) | 2015-06-24 |
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| CN201520067781.6U Active CN204419024U (en) | 2015-01-31 | 2015-01-31 | Pulsation low pressure rotary percussion drilling motor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107724952A (en) * | 2017-09-28 | 2018-02-23 | 中国石油化工股份有限公司 | One kind pulsation, which increases, turns round motor |
| CN108240175A (en) * | 2016-12-24 | 2018-07-03 | 中石化石油工程技术服务有限公司 | Constant pressure type rotates vibration screw motor |
| CN109441354A (en) * | 2018-12-22 | 2019-03-08 | 西南石油大学 | A kind of pulsating cyclic shock wave auxiliary rock device |
| CN117722149A (en) * | 2023-10-19 | 2024-03-19 | 山东石油化工学院 | Hydraulic sliding resistance-changing device |
-
2015
- 2015-01-31 CN CN201520067781.6U patent/CN204419024U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108240175A (en) * | 2016-12-24 | 2018-07-03 | 中石化石油工程技术服务有限公司 | Constant pressure type rotates vibration screw motor |
| CN108240175B (en) * | 2016-12-24 | 2024-05-03 | 中石化石油工程技术服务有限公司 | Constant-pressure rotary vibrating screw motor |
| CN107724952A (en) * | 2017-09-28 | 2018-02-23 | 中国石油化工股份有限公司 | One kind pulsation, which increases, turns round motor |
| CN107724952B (en) * | 2017-09-28 | 2019-04-19 | 中国石油化工股份有限公司 | A kind of pulsation torque increase motor |
| CN109441354A (en) * | 2018-12-22 | 2019-03-08 | 西南石油大学 | A kind of pulsating cyclic shock wave auxiliary rock device |
| CN117722149A (en) * | 2023-10-19 | 2024-03-19 | 山东石油化工学院 | Hydraulic sliding resistance-changing device |
| CN117722149B (en) * | 2023-10-19 | 2024-04-16 | 山东石油化工学院 | Hydraulic sliding resistance-changing device |
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