CN202990856U - Bottom ultrahigh-pressure pulse jet assisted rock-breaking speed-increasing system - Google Patents
Bottom ultrahigh-pressure pulse jet assisted rock-breaking speed-increasing system Download PDFInfo
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- CN202990856U CN202990856U CN 201220669797 CN201220669797U CN202990856U CN 202990856 U CN202990856 U CN 202990856U CN 201220669797 CN201220669797 CN 201220669797 CN 201220669797 U CN201220669797 U CN 201220669797U CN 202990856 U CN202990856 U CN 202990856U
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Abstract
The utility model relates to a bottom ultrahigh-pressure pulse jet assisted rock-breaking speed-increasing system. The utility model adopts the following technical scheme: the system comprises an upper bearing assembly, a torque bearing assembly, an elastic return element assembly, a pressure cylinder body, an ultrahigh-pressure drilling fluid transmission assembly and an ultrahigh-pressure drill bit. The system has the benefits as follows: part of drilling fluid is intermittently pressurized by the reciprocating movement of a drill column or the drill pressure fluctuation, so that ultrahigh-pressure pulse jet flow can be formed at a nozzle of the ultrahigh-pressure drill bit, thereby greatly improving the bottom cleaning efficiency, assisting in rock breaking at the same time and greatly increasing the drilling speed; the system is well-designed, so that the overall structure is greatly simplified and all parts are easier to process, mount, dismount and repair; and meanwhile, the system is good in stability and reliability on the aspects of structural mechanics and mechanical kinematics, so that the service life of the system is prolonged, the rock breaking efficiency is greatly improved, the service life of the drill bit is prolonged, and the mechanical drilling speed is increased.
Description
Technical field
The utility model relates to the corollary apparatus in a kind of oil, Natural Gas Drilling Operation, particularly a kind of shaft bottom super-high pressure pulse jet auxiliary rock speed-raising system.
Background technology
The jet that utilizes bit nozzle to produce carries out the shaft bottom cleaning and auxiliary rock has become one of effective means that improves bit speed.But in deep-well and ultradeep well drilling process, the higher hydraulic pressure of the very difficult acquisition in bit nozzle place, this has seriously restricted the efficient of jet flow cleaning shaft bottom and auxiliary rock.Current raising jet pressure mainly by the ground supercharging, is brought up to 30MPa or higher with the pressure of pump.To increase on ground the bit nozzle that stressed drilling fluid flows to the shaft bottom again, this needs to change existing equipment and process undoubtedly, and cost is expensive.And along with the increase of upper pressure, the pressure loss in drill string also increases considerably, and the bottom pressure increase is not fairly obvious.If can be on the basis that does not change other devices, device of supercharging can be realized the raising of part streams pressure above drill bit, and the raising of deep-well drilling speed is had good realistic meaning.
Simultaneously, the efficiency of breaking rock of bottom jet is also relevant with the type of jet.Facts have proved, pulsing jet has better rock breaking efficiency than steady jet.If it is enough large to obtain the amplitude of pulsing jet, jet not only has good shaft bottom cleaning performance so, can also reach the even directly purpose of broken rock of good auxiliary rock.This shows, research and develop a kind of device that can produce pulsing jet and pulsing jet pressure amplitude superelevation, is very necessary to improving shaft bottom cleaning performance, auxiliary rock, raising bit speed.
Summary of the invention
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, a kind of shaft bottom super-high pressure pulse jet auxiliary rock speed-raising system is provided, be convenient to installing/dismounting, structure relatively simple, have than high-reliability, the part drilling fluid can be pressurizeed in the shaft bottom produces high amplitude pulsing jet and comes auxiliary rock.
Its technical scheme is: comprise the stressed pressure-bearing assembly in top, torsion pass pressure-bearing assembly, elastic reset member assembly, supercharging cylinder body, super-pressure drilling fluid transmission assembly and superhigh pressure drill bit; The stressed pressure-bearing assembly in described top is to be formed by connecting by top crossover sub, drilling fluid strainer, drilling fluid diverter, sealed compartment top plug, hexagonal hole switching sleeve, bottom joint, spring protection sleeve; Described torsion pass pressure-bearing assembly by torsion pass cross flow structure, device bottom joint is formed by connecting; Described supercharging cylinder body by sealed compartment top plug, sealed compartment inlet one-way valve, instrument connection nut, adjustable ring, sealed compartment inner core, sealed compartment outlet one way valve, sealed compartment assembly urceolus, sealed compartment lower seal gland, sealed compartment bottom fixedly spline form; Described elastic reset member assembly is comprised of spring, spring position limiting slide block spring cavity lower seal assembly; Described super-pressure drilling fluid transmission assembly is comprised of plunger, super-pressure runner joint, metal super-pressure drilling fluid runner; Described superhigh pressure drill bit is the drill bit that extreme pressure hose and super-pressure nozzle are housed.
Above-mentioned supercharging cylinder body is fixed in the stressed pressure-bearing assembly in top, by the sealed compartment bottom fixedly spline be fixed, moment of torsion in drilling process is crossed flow structure by the torsion pass that hexagonal hole switching sleeve in the stressed pressure-bearing assembly in top passes in torsion pass pressure-bearing assembly, and then the drive bit creeps into; This is connected to hexagonal hole and is connected simultaneously, and the stressed pressure-bearing assembly in top and torsion pass pressure-bearing assembly also can carry out axial relative motion in transmitting torque.
The normal pressure drilling fluid flows into normal pressure drilling fluid runner by drilling fluid diverter, and this normal pressure drilling fluid runner is divided into two parts; The first half is by the annular space runner that the stressed pressure-bearing assembly in top and sealed compartment assembly urceolus form, and exports to be the fixing spline in sealed compartment bottom; The latter half crosses by torsion pass the annular space runner that flow structure and plunger form, and entrance is the upper opening that flow structure is crossed in torsion pass.
Above-mentioned drilling fluid filter top is the circular arc streamlined, has a large amount of apertures obliquely on the wall of strainer; Between drilling fluid strainer and sealed compartment assembly urceolus, seal assembly is housed.
Above-mentioned spring can be disk spring, hydraulic spring grease cup or common spring.
Above-mentioned drilling fluid diverter is spline structure, and the top is the inclined-plane, and coordinates with the top crossover sub, sealed compartment top plug directly seat on drilling fluid diverter, by the sealed compartment bottom fixedly spline provide support power and be fixed.
Above-mentioned instrument connection nut is installed on the aperture that is used for test booster cavity internal pressure on sealed compartment assembly urceolus.
Above-mentioned torsion pass is crossed in flow structure, and top has the duct that can supply the normal pressure drilling fluid to enter, and the streaming processing is carried out in duct and top thereof; And the first half that flow structure is crossed in described torsion pass is the hexahedron structure, be used for transmitting the moment of torsion of the stressed pressure-bearing assembly in top, have groove on each side of hexahedron structure, when guaranteeing top torsion pass pressure-bearing assembly with respect to stressed pressure-bearing assembly motion, the balance of internal voids place pressure; The latter half that flow structure is crossed in this described torsion pass is column type, and has draw-in groove for the fixing spring position limiting slide block.
Above-mentioned spring position limiting slide block is two semi-circular structures, and amalgamation is a complete circle, and an interior ring part snaps in torsion pass and crosses on flow structure, when top torsion pass pressure-bearing assembly moves with respect to stressed pressure-bearing assembly, can compress spring.
Have oil filler point on above-mentioned spring protection sleeve sidewall, the convenient lubrication oil that regularly injects guarantees the spring performance; Bottom and torsion pass are crossed the flow structure contact position spring cavity lower seal assembly are housed.
The beneficial effects of the utility model are: (1) supercharging cylinder body is fixed in the stressed pressure-bearing assembly in top, is not subjected to the impact of drill string axial force and moment of torsion, has improved stability and the application life of supercharging cylinder body; (2) the stressed transmission assembly in top is formed by connecting by top crossover sub, drilling fluid strainer, drilling fluid diverter, sealed compartment top plug, hexagonal hole switching sleeve, bottom joint, spring protection sleeve, each part-structure is relatively simple, be convenient to processing and installing/dismounting, greatly saved manufacturing cost and maintenance cost; (3) on torsion pass pressure-bearing assembly, part adopts hexahedron structure transmitting torque, and each side opening of hexahedron is fluted simultaneously, prevents that internal voids from forming negative pressure and causing erosion.Streaming duct, top greatly reduces the mobile loss of normal pressure drilling fluid and the erosion to installing; (4) drilling fluid strainer employing top is the circular arc streamlined, has reduced the energy loss of drilling liquid flow warp, has also improved the abrasion-resistance of this part simultaneously; Have a large amount of apertures obliquely on filter wall, the passage that both provided drilling fluid to enter has prevented as much as possible that also solid phase particles from entering in booster cavity, has protected the stability of booster cavity work; (5) be filled with lubrication oil in the spring reset element assembly for assembly, also make the position limiting slide block operation in the time of the keep-spring performance freely.On the spring protection sleeve wall, oil filler point is arranged, in order to change or injection lubrication oil; (6) semicircular ring of position limiting slide block structure, can make slide block firmly be embedded in the groove of torsion pass pressure-bearing assembly on the one hand.On the other hand also uniformly transmitter shaft to the force compresses spring.Structural stability and the application life of device have been strengthened in the time of this design simplification structure; (7) this device makes the intermittent supercharging of part drilling fluid by reciprocating motion or the Fluctuation of weight on bit of drill string, can form the super-high pressure pulse jet at superhigh pressure drill bit nozzle place, greatly improved the shaft bottom cleaning efficiency, simultaneously can also auxiliary rock, greatly improve bit speed; (8) this device is through well-designed, overall structure is simplified greatly, and the processing of each component, installation, dismounting and maintenance be than being easier to, simultaneously from structural mechanics and kinematics of machinery aspect, this device has good stability and reliability, thereby has improved application life; (9) this device is that a part of drilling fluid is carried out the intermittence pressurization, most of drilling fluid still enters the shaft bottom through the normal pressure runner, bring extra trouble and risk can for the conventional drilling operation, utilize simultaneously super-high pressure pulse formula jet to carry out auxiliary rock, can greatly improve efficiency of breaking rock, extend drilling life of bit, improve rate of penetration.
Description of drawings
Accompanying drawing 1 is the structural representation of upper part of the present utility model;
Accompanying drawing 2 is structural representations of lower part of the present utility model;
Accompanying drawing 3 is the generalized sections at the utility model device A-A place;
Accompanying drawing 4 is the generalized sections at the utility model device B-B place;
Accompanying drawing 5 is the generalized sections at the utility model device C-C place;
in upper figure: top crossover sub 1, drilling fluid strainer 2, drilling fluid diverter 3, sealed compartment top plug 4, sealed compartment inlet one-way valve 5, instrument connection nut 6, adjustable ring 7, sealed compartment inner core 8, sealed compartment outlet one way valve 9, sealed compartment assembly urceolus 10, sealed compartment outlet one way valve urceolus 11, superhigh pressure sealing assembly 12, plunger 13, sealed compartment lower seal gland 14, the sealed compartment bottom is spline 15 fixedly, hexagonal hole switching sleeve 16, flow structure 17 is crossed in torsion pass, bottom joint 18, spring protection sleeve 19, spring 20, spring position limiting slide block 21, spring cavity lower seal assembly 22, device bottom joint 23, super-pressure runner joint 24, superhigh pressure drill bit 25.
The specific embodiment
With reference to accompanying drawing 1-5, the utility model is further described:
The utility model mainly is comprised of the stressed pressure-bearing assembly in top, torsion pass pressure-bearing assembly, elastic reset member assembly, supercharging cylinder body, super-pressure drilling fluid transmission assembly and superhigh pressure drill bit; The stressed transmission assembly in described top is to be formed by connecting by top crossover sub 1, drilling fluid strainer 2, drilling fluid diverter 3, sealed compartment top plug 4, hexagonal hole switching sleeve 16, bottom joint 18, spring protection sleeve 19; Described torsion pass pressure-bearing assembly by torsion pass cross flow structure 17, device bottom joint 23 is formed by connecting; Described supercharging cylinder body by sealed compartment top plug 4, sealed compartment inlet one-way valve 5, instrument connection nut 6, adjustable ring 7, sealed compartment inner core 8, sealed compartment outlet one way valve 9, sealed compartment assembly urceolus 10, sealed compartment lower seal gland 14, sealed compartment bottom fixedly spline 15 form; Described elastic reset member assembly is comprised of spring 20, spring position limiting slide block 21 spring cavity lower seal assemblies 22; Described super-pressure drilling fluid transmission assembly is comprised of plunger 13, super-pressure runner joint 24, metal super-pressure drilling fluid runner; Described drill bit is the improved drill bit that extreme pressure hose and super-pressure nozzle are housed.
Wherein, in the stressed transmission assembly in top, top crossover sub 1, hexagonal hole switching sleeve 16, bottom joint 18, spring protection sleeve 19 are threaded by left-hand thread; Between drilling fluid strainer 2 and sealed compartment assembly urceolus 10, seal assembly is housed; Between sealed compartment outlet one way valve urceolus 11 and plunger 13, static seal is housed; Torsion pass is crossed between flow structure 17 and bottom joint 18 movable sealing is housed; Spring cavity lower seal assembly 22 is equipped with in spring protection sleeve 19 bottoms.
The supercharging cylinder body is fixed in the stressed pressure-bearing assembly in top, by the sealed compartment bottom fixedly spline 15 be fixed, during assurance device work, supercharging cylinder body and the stressed pressure-bearing assembly in top is relative static.Moment of torsion in drilling process is crossed flow structure 17 by the torsion pass that hexagonal hole switching sleeve 16 in the stressed pressure-bearing assembly in top passes in torsion pass pressure-bearing assembly, and then the drive bit creeps into; This is connected to hexagonal hole and is connected simultaneously, and the stressed pressure-bearing assembly in top and torsion pass pressure-bearing assembly also can carry out axial relative motion in transmitting torque.In drilling process, because vibration or the Fluctuation of weight on bit of drill string causes torsion pass pressure-bearing assembly with respect to top stressed pressure-bearing assembly relative motion, and then drive plunger 13 and move back and forth in booster cavity drilling fluid in the chamber is pressurizeed.When the pressure of the drill increases, the stressed pressure-bearing assembly in top moves downward with respect to torsion pass pressure-bearing assembly, and sealed compartment inlet one-way valve 5 is closed at this moment, and torsion pass is crossed flow structure 17 drive spring position limiting slide blocks 21 and made spring 20 compressions, drilling fluid in plunger 13 compression booster cavities increases its pressure.When the booster cavity internal pressure arrived extreme value, sealed compartment outlet one way valve 9 was opened, and the drilling fluid after pressurization arrives the superhigh pressure drill bit nozzle through super-pressure drilling fluid transmission assembly and carries out auxiliary rock.When the pressure of the drill reduces, elastic reset member medi-spring 20 stretches, assist the stressed pressure-bearing assembly in top to move upward with respect to torsion pass pressure-bearing assembly, cause the booster cavity internal pressure to reduce, sealed compartment inlet one-way valve 5 is opened at this moment, the part drilling fluid enters booster cavity by drilling fluid strainer 2, for next step supercharging is prepared.
In device, the drilling fluid flow process is: (1) normal pressure drilling fluid flows into normal pressure drilling fluid runner by drilling fluid diverter 3.This runner is divided into two parts; The first half is by the annular space runner that the stressed pressure-bearing assembly in top and sealed compartment assembly urceolus 10 form, and exports to be the fixing spline 15 in sealed compartment bottom; The latter half crosses by torsion pass the annular space runner that flow structure 17 and plunger 13 form, and entrance is the upper opening that flow structure 17 is crossed in torsion pass.So just normal pressure drilling fluid and super-pressure drilling fluid are separated, guaranteed the job stability of this device.(2) treat that the supercharging drilling fluid enters booster cavity by drilling fluid strainer 2, move back and forth the intermittent supercharging of drilling fluid in booster cavity because Fluctuation of weight on bit causes plunger 13, the drilling fluid after supercharging arrives superhigh pressure drill bit nozzle formation super-high pressure pulse jet through super-pressure drilling fluid transmission assembly and carries out auxiliary rock.
Above-mentioned drilling fluid strainer 2 tops are the circular arc streamlined, have reduced the energy loss of drilling liquid flow warp, have also improved the abrasion-resistance of this part simultaneously; Have a large amount of apertures obliquely on filter wall, the passage that both provided drilling fluid to enter has prevented as much as possible that also solid phase particles from entering in booster cavity, has protected the stability of booster cavity work.Between drilling fluid strainer 2 and sealed compartment assembly urceolus 10, seal assembly is housed, has guaranteed the sealing of booster cavity.
With reference to accompanying drawing 3, drilling fluid diverter 3 is spline structure, and the top is that the inclined-plane coordinates with top crossover sub 1, sealed compartment top plug 4 directly seat on drilling fluid diverter 3, by the sealed compartment bottom fixedly spline 15 provide support power and be fixed.This structure has two effects: make on the one hand the normal pressure drilling fluid flow into the normal pressure runner; Provide support for the supercharging cylinder body on the other hand.
Above-mentioned instrument connection nut 6 is installed on the aperture that is used for test booster cavity internal pressure on sealed compartment assembly urceolus 10.If need test booster cavity internal pressure, this nut can be changed to testing element and get final product.
Above-mentioned hexagonal hole switching sleeve 16 is the cylindrical shell in inner hexagon duct, and the first half of crossing flow structure 17 with torsion pass coordinates, can transmitting torque and torsional strength greatly improve, guaranteed stability and the degree of reliability of device.
With reference to accompanying drawing 4, torsion pass is crossed in flow structure 17, and top has the duct that can enter for the normal pressure drilling fluid, for the energy loss that reduces drilling fluid with to the erosion of structure, streaming is carried out in duct and top thereof process.It is the hexahedron structure that flow structure the first half is crossed in this torsion pass, is used for transmitting the moment of torsion of the stressed pressure-bearing assembly in top.Simultaneously have groove on each side of hexahedron, when guaranteeing top torsion pass pressure-bearing assembly with respect to stressed pressure-bearing assembly motion, the balance of internal voids place pressure causes erosion or destruction in order to avoid form negative pressure to structure.This structure the latter half is column type, and has draw-in groove for fixing spring position limiting slide block 21.
Above-mentioned spring position limiting slide block 21 is two semi-circular structures, and amalgamation is a complete circle.An interior ring part snaps in torsion pass and crosses on flow structure 17, when top torsion pass pressure-bearing assembly moves with respect to stressed pressure-bearing assembly, can compress spring 20.
Above-mentioned spring 20 can be the elastic reset members such as disk spring, hydraulic spring grease cup and common spring.
Have oil filler point on above-mentioned spring protection sleeve 19 sidewalls, the convenient lubrication oil that regularly injects guarantees the spring performance; Bottom and torsion pass are crossed flow structure 17 contact positions spring cavity lower seal assembly 22 are housed.
Advantage of the present invention is: (1) supercharging cylinder body is fixed in the stressed pressure-bearing assembly in top, is not subjected to the impact of drill string axial force and moment of torsion, has improved stability and the application life of supercharging cylinder body; (2) drilling fluid strainer employing top is the circular arc streamlined, has reduced the energy loss of drilling liquid flow warp, has also improved the abrasion-resistance of this part simultaneously; Have a large amount of apertures obliquely on filter wall, the passage that both provided drilling fluid to enter has prevented as much as possible that also solid phase particles from entering in booster cavity, has protected the stability of booster cavity work; (3) the stressed transmission assembly in top is formed by connecting by top crossover sub, drilling fluid strainer, drilling fluid diverter, sealed compartment top plug, hexagonal hole switching sleeve, bottom joint, spring protection sleeve, each part-structure is relatively simple, be convenient to processing and installing/dismounting, greatly saved manufacturing cost and maintenance cost; (4) on torsion pass pressure-bearing assembly, part adopts hexahedron structure transmitting torque, and each side opening of hexahedron is fluted simultaneously, prevents that internal voids from forming negative pressure and causing erosion.Streaming duct, top greatly reduces the mobile loss of normal pressure drilling fluid and the erosion to installing; (5) be filled with lubrication oil in the spring reset element assembly for assembly, also make the position limiting slide block operation in the time of the keep-spring performance freely.On the spring protection sleeve wall, oil filler point is arranged, in order to change or injection lubrication oil; (6) semicircular ring of position limiting slide block structure, can make slide block firmly be embedded in the groove of torsion pass pressure-bearing assembly on the one hand.On the other hand also uniformly transmitter shaft to the force compresses spring.Structural stability and the application life of device have been strengthened in the time of this design simplification structure; (7) this device makes the intermittent supercharging of part drilling fluid by reciprocating motion or the Fluctuation of weight on bit of drill string, can form the super-high pressure pulse jet at superhigh pressure drill bit nozzle place, greatly improved the shaft bottom cleaning efficiency, simultaneously can also auxiliary rock, greatly improve bit speed; (8) this device is through well-designed, overall structure is simplified greatly, and the processing of each component, installation, dismounting and maintenance be than being easier to, simultaneously from structural mechanics and kinematics of machinery aspect, this device has good stability and reliability, thereby has improved application life; (9) this device is that a part of drilling fluid is carried out the intermittence pressurization, most of drilling fluid still enters the shaft bottom through the normal pressure runner, bring extra trouble and risk can for the conventional drilling operation, utilize simultaneously super-high pressure pulse formula jet to carry out auxiliary rock, can greatly improve efficiency of breaking rock, extend drilling life of bit, improve rate of penetration.
Claims (10)
1. a shaft bottom super-high pressure pulse jet auxiliary rock speed-raising system, is characterized in that: comprise the stressed pressure-bearing assembly in top, torsion pass pressure-bearing assembly, elastic reset member assembly, supercharging cylinder body, super-pressure drilling fluid transmission assembly and superhigh pressure drill bit; The stressed pressure-bearing assembly in described top is to be formed by connecting by top crossover sub (1), drilling fluid strainer (2), drilling fluid diverter (3), sealed compartment top plug (4), hexagonal hole switching sleeve (16), bottom joint (18), spring protection sleeve (19); Described torsion pass pressure-bearing assembly by torsion pass cross flow structure (17), the device bottom joint (23) be formed by connecting; Described supercharging cylinder body by sealed compartment top plug (4), sealed compartment inlet one-way valve (5), instrument connection nut (6), adjustable ring (7), sealed compartment inner core (8), sealed compartment outlet one way valve (9), sealed compartment assembly urceolus (10), sealed compartment lower seal gland (14), sealed compartment bottom fixedly spline (15) form; Described elastic reset member assembly is comprised of spring (20), spring position limiting slide block (21), spring cavity lower seal assembly (22); Described super-pressure drilling fluid transmission assembly is comprised of plunger (13), super-pressure runner joint (24), metal super-pressure drilling fluid runner; Described superhigh pressure drill bit is the drill bit that extreme pressure hose and super-pressure nozzle are housed.
2. shaft bottom according to claim 1 super-high pressure pulse jet auxiliary rock speed-raising system, it is characterized in that: described supercharging cylinder body is fixed in the stressed pressure-bearing assembly in top, by the sealed compartment bottom fixedly spline (15) be fixed, moment of torsion in drilling process is crossed flow structure (17) by the torsion pass that hexagonal hole switching sleeve (16) in the stressed pressure-bearing assembly in top passes in torsion pass pressure-bearing assembly, and then the drive bit creeps into; This is connected to hexagonal hole and is connected simultaneously, and the stressed pressure-bearing assembly in top and torsion pass pressure-bearing assembly also can carry out axial relative motion in transmitting torque.
3. shaft bottom according to claim 1 super-high pressure pulse jet auxiliary rock speed-raising system, it is characterized in that: the normal pressure drilling fluid flows into normal pressure drilling fluid runner by drilling fluid diverter (3), and this normal pressure drilling fluid runner is divided into two parts; The first half is by the annular space runner that the stressed pressure-bearing assembly in top and sealed compartment assembly urceolus (10) form, and exports to be the fixing spline (15) in sealed compartment bottom; The latter half crosses by torsion pass the annular space runner that flow structure (17) and plunger (13) form, and entrance is the upper opening that flow structure (17) are crossed in torsion pass.
4. shaft bottom according to claim 1 super-high pressure pulse jet auxiliary rock speed-raising system is characterized in that: described drilling fluid strainer (2) top is the circular arc streamlined, has aperture obliquely on the wall of strainer; Between drilling fluid strainer (2) and sealed compartment assembly urceolus (10), seal assembly is housed.
5. shaft bottom according to claim 1 super-high pressure pulse jet auxiliary rock speed-raising system, it is characterized in that: described spring (20) can be disk spring, hydraulic spring grease cup or common spring.
6. shaft bottom according to claim 1 super-high pressure pulse jet auxiliary rock speed-raising system, it is characterized in that: described drilling fluid diverter (3) is spline structure, the top is the inclined-plane, and coordinate with top crossover sub (1), sealed compartment top plug (4) directly seat on drilling fluid diverter (3), by the sealed compartment bottom fixedly spline (15) power of providing support be fixed.
7. shaft bottom according to claim 1 super-high pressure pulse jet auxiliary rock speed-raising system, it is characterized in that: described instrument connection nut (6) is installed on the aperture that is used for test booster cavity internal pressure on sealed compartment assembly urceolus (10).
8. shaft bottom according to claim 1 super-high pressure pulse jet auxiliary rock speed-raising system, it is characterized in that: described torsion pass is crossed in flow structure (17), and top has the duct that can enter for the normal pressure drilling fluid, and streaming is carried out in duct and top thereof process; And the first half that flow structure (17) is crossed in described torsion pass is the hexahedron structure, be used for transmitting the moment of torsion of the stressed pressure-bearing assembly in top, have groove on each side of hexahedron structure, when guaranteeing top torsion pass pressure-bearing assembly with respect to stressed pressure-bearing assembly motion, the balance of internal voids place pressure; The latter half that flow structure (17) is crossed in this described torsion pass is column type, and has draw-in groove for fixing spring position limiting slide block (21).
9. shaft bottom according to claim 1 super-high pressure pulse jet auxiliary rock speed-raising system, it is characterized in that: described spring position limiting slide block (21) is two semi-circular structures, amalgamation is a complete circle, an interior ring part snaps in torsion pass and crosses on flow structure (17), when top torsion pass pressure-bearing assembly moves with respect to stressed pressure-bearing assembly, can compress spring (20).
10. shaft bottom according to claim 1 super-high pressure pulse jet auxiliary rock speed-raising system, it is characterized in that: have oil filler point on described spring protection sleeve (19) sidewall, the convenient lubrication oil that regularly injects guarantees the spring performance; Bottom and torsion pass are crossed flow structure (17) contact position spring cavity lower seal assembly (22) are housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220669797 CN202990856U (en) | 2012-12-07 | 2012-12-07 | Bottom ultrahigh-pressure pulse jet assisted rock-breaking speed-increasing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220669797 CN202990856U (en) | 2012-12-07 | 2012-12-07 | Bottom ultrahigh-pressure pulse jet assisted rock-breaking speed-increasing system |
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| CN202990856U true CN202990856U (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220669797 Expired - Fee Related CN202990856U (en) | 2012-12-07 | 2012-12-07 | Bottom ultrahigh-pressure pulse jet assisted rock-breaking speed-increasing system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104338918A (en) * | 2013-07-26 | 2015-02-11 | 宁波鑫达模具制造有限公司 | Propping sleeve device |
| CN104481403A (en) * | 2014-11-20 | 2015-04-01 | 中国石油天然气集团公司 | Stepwise jet-drilling down hole control system |
| CN107100547A (en) * | 2017-05-05 | 2017-08-29 | 中国石油大学(华东) | A kind of drillstring vibrations couple downhole well tool with waterpower pulse |
-
2012
- 2012-12-07 CN CN 201220669797 patent/CN202990856U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104338918A (en) * | 2013-07-26 | 2015-02-11 | 宁波鑫达模具制造有限公司 | Propping sleeve device |
| CN104481403A (en) * | 2014-11-20 | 2015-04-01 | 中国石油天然气集团公司 | Stepwise jet-drilling down hole control system |
| CN107100547A (en) * | 2017-05-05 | 2017-08-29 | 中国石油大学(华东) | A kind of drillstring vibrations couple downhole well tool with waterpower pulse |
| CN107100547B (en) * | 2017-05-05 | 2019-06-28 | 中国石油大学(华东) | A kind of drillstring vibrations couple downhole well tool with waterpower pulse |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20151207 |
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| EXPY | Termination of patent right or utility model |