CN114033310A - Drilling speed-increasing device for horizontal well - Google Patents
Drilling speed-increasing device for horizontal well Download PDFInfo
- Publication number
- CN114033310A CN114033310A CN202111200578.8A CN202111200578A CN114033310A CN 114033310 A CN114033310 A CN 114033310A CN 202111200578 A CN202111200578 A CN 202111200578A CN 114033310 A CN114033310 A CN 114033310A
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- 238000005553 drilling Methods 0.000 title claims abstract description 87
- 239000012530 fluid Substances 0.000 claims abstract description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 229910000831 Steel Inorganic materials 0.000 claims description 30
- 239000010959 steel Substances 0.000 claims description 30
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 5
- 230000001133 acceleration Effects 0.000 claims description 2
- 230000035939 shock Effects 0.000 claims 2
- 239000011435 rock Substances 0.000 abstract description 24
- 238000005299 abrasion Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 5
- 208000035874 Excoriation Diseases 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000003116 impacting effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/24—Drilling using vibrating or oscillating means, e.g. out-of-balance masses
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a drilling speed-up device for a horizontal well, which comprises a hydraulic impactor, a high-pressure jet supercharger and a high-pressure drill bit, wherein the hydraulic impactor, the high-pressure jet supercharger and the high-pressure drill bit are coaxially and sequentially connected; the upper end of the hydraulic impactor is connected with a drill column, the energy of drilling fluid is used for driving a plunger shaft to move, the plunger is connected with a pressure cylinder assembly to generate high-pressure water jet, high-pressure fluid is sprayed out through an ultrahigh pressure flow channel through a nozzle, and the nozzle is arranged on an ultrahigh pressure drill bit at an eccentric distance smaller than the diameter of a drill bit, so that the influence of horizontal ground stress on well bottom rock is cut off, and the rock strength is reduced; the spring transmits the impact force generated by the hydraulic impactor and acts on the drill bit, so that the rock is impacted and damaged. The hydraulic impactor can form axial vibration of a drilling tool, one part of energy of the axial vibration is used for pressurizing drilling fluid, the other part of energy acts on the drilling tool to form impact damage of rocks, and the hydraulic impactor can also play a role in reducing abrasion and drag reduction due to the vibration characteristic of the hydraulic impactor, so that the drilling speed of a horizontal well is increased.
Description
Technical Field
The invention relates to the field of petroleum drilling engineering, in particular to a drilling speed-up device for a horizontal well.
Background
The friction resistance is large in the deep horizontal well and ultra-deep horizontal well drilling process, the stratum is hard and has poor drillability, and the mechanical drilling speed is low, so that the current challenge of high-efficiency well drilling is met. Along with the increase of the well depth, the confining pressure borne by the rock is linearly increased, so that the plastic strength of the rock is increased, which is one of the main reasons that the mechanical drilling speed of the deep well and the ultra-deep well is low and the drill bit is seriously abraded. In the aspect of bit optimization, the high-impact-resistance roller bit, the impregnated bit, the self-adaptive cutting tooth PDC bit, the axe-shaped tooth + conical tooth PDC bit and the roller and PDC composite bit have the problems of bit early abrasion, short service life, incapability of meeting the speed-up target of difficult-to-drill intervals such as high conglomerate and dolomite, and the like, and need to innovate a rock breaking mode. In the aspect of tool matching, the domestic tool has poor stability and large difference between the wells in the using effect of the tool.
In order to improve the rock breaking efficiency, shorten the drilling time and reduce the operation cost, the invention provides a drilling speed-up device for a horizontal well, which couples a high-pressure water jet with mechanical impact acting force, a high-pressure nozzle is arranged on a drill bit with a certain eccentricity (0 < e < the size of the drill bit), the high-pressure water jet can cut a circular groove at the bottom of the well, the action of ground stress on rocks at the bottom of the well is cut off, the strength of the rocks is reduced, the rocks have brittle characteristics, and the drilling speed is greatly improved by assisting in impacting a rock breaking tool, and the drilling speed can also play roles of reducing abrasion and reducing drag due to the vibration characteristic of the drilling speed-up device.
Disclosure of Invention
Aiming at the problems that the deep horizontal well has large friction resistance and the rock drillability is low due to high confining pressure of the rock, the invention provides the drilling speed-increasing device for the horizontal well.
A drilling speed-increasing device for a horizontal well comprises a hydraulic impactor, a high-pressure water jet supercharger and an ultrahigh-pressure drill bit which are coaxial and connected in sequence, wherein the hydraulic impactor consists of an upper conversion joint, a spring outer cylinder, an upper spring, a spring fixing device, an impactor fixing steel sleeve, a bearing, a turbine fixing steel sleeve, a turbine, an impactor outer cavity, a turbine shaft, a valve disc and a valve seat, the upper end of the upper conversion joint is connected with a drill column, the lower end of the upper conversion joint is provided with a spline to be matched with the upper end of the upper spring outer cylinder, the lower end of the upper spring outer cylinder is in threaded connection with the impactor outer cavity, the upper spring is installed in the upper spring outer cylinder through the upper spring fixing device, the turbine shaft is arranged in the impactor outer cavity, the bearing, the turbine and the valve disc are sequentially installed on the turbine shaft, the upper end of the impactor fixing steel sleeve abuts against the lower end of the upper spring outer cylinder, the lower end of the impactor fixing steel sleeve abuts against the upper end of the impactor outer cavity and the upper end of the turbine fixing steel sleeve, the lower end of the turbine fixing steel sleeve abuts against the outer boundary of the upper end of the valve seat, the lower end of the valve seat abuts against the step of the bottom surface of the outer cavity of the impactor, the bottom end of the valve disk penetrates through the center of the valve seat, drilling fluid flow channels are arranged inside the valve disk and the valve seat, drilling fluid can flow into the high-pressure water jet supercharger through the drilling fluid flow channels of the valve disk and the valve seat, the high-pressure water jet supercharger is provided with a common drilling fluid flow channel and an ultrahigh-pressure flow channel, the top end of the common drilling fluid flow channel is communicated with the drilling fluid flow channel flowing out through the valve seat, the bottom end of the common drilling fluid flow channel is provided with a water inlet valve and is connected with one end of a boosting cylinder assembly, the other end of the boosting cylinder assembly is connected with the top of the ultrahigh-pressure flow channel, the water outlet valve is arranged at the top end of the ultrahigh-pressure flow channel, the water inlet valve and the water outlet valve are opened and closed asynchronously, a drilling fluid lateral outlet is arranged on the common drilling fluid flow channel, drilling fluid flows into the ultrahigh-pressure drill bit through the lateral outlet, and the ultrahigh-pressure drill bit comprises a drill bit conventional drill bit flow channel, a drill bit, and a drill bit, wherein the drill bit is arranged on the drill bit, the lower end of the lower portion of the, Drill bit superhigh pressure runner, superhigh pressure runner connecting device, conventional nozzle and superhigh pressure nozzle, superhigh pressure runner connecting device one end is connected with superhigh pressure runner, one end is connected with drill bit superhigh pressure runner top, superhigh pressure nozzle is connected to drill bit superhigh pressure runner bottom, superhigh pressure nozzle arranges on the wing that the eccentricity is less than the drill bit size, and the drilling fluid that flows through the side direction export is spout by conventional nozzle through the conventional runner of drill bit.
Further, the bearing is installed on a shaft head of the turbine shaft and used for supporting the rotation of the turbine shaft, the turbine is installed on a shaft body of the turbine shaft, and the valve disc is installed on the shaft diameter of the turbine shaft through threaded connection.
Further, the high-pressure water jet supercharger comprises a plunger shaft, a spline outer cylinder, a lower spring outer cylinder, a rigid retainer ring, a lower spring, a plunger, a booster cylinder outer cylinder, a sealing assembly, a water inlet valve, a booster cylinder fixing steel bushing, a booster cylinder assembly, a water outlet valve and an ultrahigh pressure flow channel, wherein the upper end of the plunger shaft is in threaded connection with the bottom end of an outer cavity of the impactor, the lower end of the plunger shaft is in threaded connection with the top end of the plunger, the bottom of the plunger is arranged in the booster assembly, the sealing assembly is arranged at the bottom of the plunger, the spline is arranged on the plunger shaft and matched with the spline outer cylinder, the rigid retainer ring is arranged on the plunger shaft in the lower spring outer cylinder, the spline outer cylinder is connected with the lower spring outer cylinder through threads, the lower spring sleeved on the plunger shaft is arranged in the lower spring outer cylinder, the bottom of the lower spring outer cylinder is connected with the booster cylinder through the threads, the top end of the fixing steel bushing of the lower spring outer cylinder is abutted against the top end of the periphery of the booster cylinder assembly, the bottom end of the periphery of the pressurizing cylinder assembly is abutted against the step of the bottom end of the outer cylinder of the pressurizing cavity, and the bottom of the pressurizing cylinder assembly is provided with a water outlet valve which is connected with the ultrahigh pressure flow channel.
Further, the side outlet is provided on the plunger, allowing a majority of the drilling fluid to flow through the plunger side outlet to the booster housing barrel.
Further, a lower conversion joint is arranged at the bottom of the outer cylinder of the pressurization cavity and is connected with the ultrahigh pressure drill bit.
Furthermore, the ordinary drilling fluid flow channel and the ultrahigh pressure drilling fluid flow channel are arranged at the axis position of the speed increasing device.
Has the advantages that: the hydraulic impactor of the device can form axial vibration of a drilling tool, part of energy of the axial vibration is used for pressurizing drilling fluid, the other part of energy of the axial vibration acts on a drill bit to form impact damage of the rock, and the vibration characteristic of the hydraulic impactor can also play a role in reducing abrasion and reducing resistance, so that the drilling speed of the horizontal well is improved. During the rotation of the drill bit, the high pressure water jet cuts a circular groove on the rock at the bottom of the well to cut off the action of ground stress, and the conventional nozzle is used for cleaning the bottom of the well to prevent the pressing effect.
Drawings
FIG. 1 is a schematic structural diagram of a drilling acceleration device of the present invention;
FIG. 2 is a schematic view of a turbine;
FIG. 3 is a schematic view of a valve disc;
FIG. 4 is a schematic view of a valve seat;
FIG. 5 is a sectional view taken along line A-A;
FIG. 6 is a sectional view taken along line B-B.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
The invention provides a rock breaking and drilling speed increasing device for a horizontal well, which is structurally shown in figure 1 and comprises a hydraulic impactor, a high-pressure jet supercharger and a high-pressure drill bit, wherein the hydraulic impactor, the high-pressure jet supercharger and the high-pressure drill bit are coaxially designed and are sequentially connected.
As shown in figure 1, the hydraulic impactor comprises an upper end of an upper adapter 1 connected with a drill string, the upper adapter 1 is provided with splines matched with an upper spring outer cylinder 2 and can be used for transmitting torque and allowing the spring outer cylinder 2 to move up and down, and an upper spring 3 is installed in the upper spring outer cylinder 2 through an upper spring fixing device 4 and is used for transmitting bit weight and reducing vibration of the drill string. The outer cavity 9 of the impactor is connected with the upper spring outer cylinder 2 through threads. The bearing 6 is mounted on a shaft head of a turbine shaft 10 for supporting the rotation of the turbine shaft 10 and reducing friction, the turbine 8 is mounted on a shaft body of the turbine shaft 10, and the valve disc 11 is mounted on a shaft diameter of the turbine shaft 10 through a threaded connection. The upper end of the impactor fixing steel sleeve 5 abuts against the step at the lower end of the upper spring outer cylinder 2, and the lower end of the impactor fixing steel sleeve 5 abuts against the impactor outer cavity 9 and the upper end of the turbine fixing steel sleeve 7 respectively. The lower end of the turbine fixing steel sleeve 7 abuts against the outer boundary of the upper end of the valve seat 12, the lower end of the valve seat 12 abuts against the step on the bottom surface of the outer cavity 9 of the impactor, and the bottom end of the valve disc 11 penetrates through the center of the valve seat 12.
When the conventional drilling fluid flows through the turbine, the turbine shaft is driven to rotate, the valve disc is driven to rotate, the area of a flow passage between the valve disc and the valve disc seat is changed, the pressure of the drilling fluid is continuously changed, and the fluctuation of the pressure of the drilling fluid acts on the turbine fixing steel sleeve to form continuously changed impact force, so that the axial vibration of the outer spring cylinder and the outer cavity of the impactor is caused.
As shown in figure 1, the high-pressure water jet supercharger comprises a plunger shaft 13, the top end of which is connected with the bottom end of the outer cavity 9 of the impactor through threads, the bottom end of the plunger shaft 13 is connected with the top end of a plunger 18 through threads, and the plunger shaft 13 is provided with splines which are matched with a spline outer cylinder 14 and used for transmitting torque. The plunger shaft 13 is provided with a rigid retainer ring 16 to prevent the lower drill from falling off. The spline outer cylinder 14 is connected with a lower spring outer cylinder 15 through threads, and a lower spring 17 is installed inside the lower spring outer cylinder 15. The bottom of the lower spring outer cylinder 15 is connected with the pressurizing cavity outer cylinder 19 through threads, the top end of a pressurizing cylinder fixing steel bushing 22 abuts against the bottom of the lower spring outer cylinder 15, the bottom end of the pressurizing cylinder fixing steel bushing 22 abuts against the peripheral top end of a pressurizing cylinder assembly 23, the peripheral bottom end of the pressurizing cylinder assembly 23 abuts against a bottom end step of the pressurizing cavity outer cylinder 19, a sealing assembly 20 is installed around the bottom end of the plunger 18, a water inlet valve 21 is arranged at the bottom end of the plunger 18, and the plunger 18 is installed inside the pressurizing cylinder assembly 23. The plunger is provided with a drilling fluid side outlet, most drilling fluid is allowed to flow to the pressurizing cavity outer barrel 19 through the side outlet of the plunger 18, most drilling fluid is guaranteed to flow out through a conventional flow passage, a small part of drilling fluid is used for pressurizing, the bottom of the pressurizing cylinder assembly 23 is provided with a water outlet valve 24, and the water outlet valve 24 is connected with the ultrahigh pressure flow passage 25. The bottom end of the pressurization cavity outer cylinder 19 is provided with a lower conversion joint.
As shown in FIG. 1, the ultrahigh pressure drill bit comprises a conventional flow passage 26 connected at the top end thereof to the bottom end of the pressurizing cavity outer cylinder 19, and a conventional nozzle 29 connected at the bottom end of the conventional flow passage 26 of the drill bit. The ultrahigh pressure drill bit is internally provided with an ultrahigh pressure flow passage connecting device 27 for connecting the ultrahigh pressure flow passage 25 with the drill bit ultrahigh pressure flow passage 28. The bottom end of the drill bit ultrahigh pressure flow passage 28 is connected with an ultrahigh pressure nozzle 30, and the ultrahigh pressure nozzle 30 is arranged on a blade with the eccentricity smaller than the size of the drill bit.
The hydraulic impactor causes axial vibration of the outer spring barrel and the outer impactor cavity to drive the plunger shaft, the plunger and the rigid retainer ring to axially move together, when the outer spring barrel and the outer impactor cavity move upwards, the piston is driven to move upwards, negative pressure is generated in the pressure cylinder assembly, drilling fluid is sucked into the pressure cylinder assembly, when the outer spring barrel and the outer impactor cavity move downwards, the piston is driven to move downwards to compress the drilling fluid, and the pressurized drilling fluid enters a high-pressure nozzle of a drill bit through an ultrahigh-pressure flow passage to form high-pressure jet flow for grooving of downhole rock.
When the rock breaking and drilling speed increasing device for the horizontal well is used, the upper end of the upper conversion joint 1 is connected with a drill rod. During operation, drilling fluid enters the interior of the drilling tool through the flow passage of the upper adapter 1 so as to drive the turbine to rotate, and the turbine 6 and the valve disc 11 are mounted on the shaft 10, so that the valve disc 11 is driven to rotate together. Drilling fluid flow passages are arranged inside the valve disc 11 and the valve seat 12, and drilling fluid can flow into a lower drilling tool through the flow passages of the valve disc 11 and the valve seat 12. A change in the flow passage area of the valve disc 11 and the valve seat 12 due to the rotation of the valve disc 11; when the area is smaller, the pressure of the drilling fluid is increased, and the force acting on the fixed steel sleeve 5 is increased, so that the upper spring outer cylinder 2, the upper spring fixing device 4, the impactor fixing steel sleeve 5, the bearing 6, the turbine fixing steel sleeve 7, the turbine 8, the impactor outer cavity 9, the turbine shaft 10, the valve disc 11 and the valve seat 12 are driven to move downwards together; when the area grow, drilling fluid pressure diminishes, the power that is used in on fixed steel bushing 5 diminishes, go up spring 3 drive spring urceolus 2, go up spring fixing device 4, the fixed steel bushing 5 of impacter, bearing 6, the fixed steel bushing 7 of turbine, turbine 8, impacter exocoel 9, turbine shaft 10, valve disc 11, the same upward movement of disk seat 12, thereby drive plunger shaft 13 along axial reciprocating motion, can reduce the frictional force of drilling tool and the wall of a well at reciprocating motion's in-process, thereby reduce the resistance when the drilling tool moves, and go up spring 13 and can be comparatively regular motion with the irregular motion modulation of upper portion drilling string, thereby play the effect that reduces the vibration.
Because the plunger 18 is connected with the plunger shaft 13 through threads, when the plunger shaft 13 drives the plunger 18 to move downwards, the water outlet valve 24 is opened, the water inlet valve 21 is closed, the drilling fluid in the pressure cylinder 23 is compressed to form high-pressure fluid, the pressurized high-pressure drilling fluid flows into the drill bit ultrahigh pressure flow passage 28 through the ultrahigh pressure flow passage 25 and the ultrahigh pressure flow passage connecting device 27, and is finally sprayed out through the high pressure nozzle 30 to form high-pressure water jet for crushing well bottom rock, and due to the rotation of the high pressure drill bit at the well bottom, the well bottom rock is continuously damaged to form a circular groove, so that the action of ground stress on the well bottom rock is cut off, and the strength of the rock is reduced. The lower spring 17 plays a role in transmitting impact force generated by the outer cavity 9 of the impactor and transmitting the impact force to the drill bit, thereby playing a role in impacting and breaking rock.
When the plunger shaft 13 drives the plunger 18 to move upwards, the water inlet valve 21 is opened, the water outlet valve 24 is closed, a cavity in the pressure cylinder assembly 23 forms negative pressure, a small part of drilling fluid is sucked into the pressure cylinder through a central flow passage of the plunger 18, the plunger 18 is provided with a lateral outlet which allows a large part of drilling fluid to flow to the outer cylinder 19 of the pressure cylinder through the lateral outlet of the plunger 18, and the drilling fluid is sprayed out from the conventional nozzle 29 through a conventional flow passage 26 of a drill bit, so that the effects of flushing the well bottom and preventing the pressure holding effect are achieved.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.
Claims (6)
1. The utility model provides a well drilling accelerating device for horizontal well, accelerating device includes coaxial and the hydraulic shock ware, high pressure water jet booster and the superhigh pressure drill bit that connect gradually, its characterized in that, hydraulic shock ware comprises upper portion crossover sub, spring urceolus, upper spring, spring fixing device, the fixed steel bushing of impacter, bearing, the fixed steel bushing of turbine, impacter exocoel, turbine shaft, valve disc and disk seat, upper portion crossover sub's upper end and drilling string are connected, the lower extreme sets up the spline and cooperates with upper spring urceolus upper end, upper spring urceolus lower extreme and impacter exocoel threaded connection, the upper spring passes through upper spring fixing device and installs in the upper spring urceolus, and the turbine shaft sets up in the impacter exocoel, and bearing, turbine and valve disc are installed on the turbine shaft in proper order, and impacter fixed steel bushing upper end and upper spring urceolus lower extreme step counterbalance, The lower end of the turbine fixing steel bushing is abutted against the outer cavity of the impactor and the upper end of the turbine fixing steel bushing respectively, the lower end of the turbine fixing steel bushing is abutted against the outer boundary of the upper end of the valve seat, the lower end of the valve seat is abutted against the step on the bottom surface of the outer cavity of the impactor, the bottom end of the valve disc penetrates through the center of the valve seat, drilling fluid flow passages are arranged in the valve disc and the valve seat, drilling fluid can flow into the high-pressure water jet supercharger through the drilling fluid flow passages of the valve disc and the valve seat, the high-pressure water jet supercharger is provided with a common drilling fluid flow passage and an ultrahigh-pressure flow passage, the top end of the common drilling fluid flow passage is communicated with the drilling fluid flow passage flowing out through the valve seat, the bottom end of the common drilling fluid flow passage is provided with a water inlet valve and is connected with one end of a supercharging cylinder assembly, the other end of the supercharging cylinder assembly is connected with the top of the ultrahigh-pressure flow passage, the ultrahigh-pressure drill is provided with a water outlet valve, the water inlet valve and the water outlet are opened and opened asynchronously with the water outlet on the common drilling fluid flow passage, the drilling fluid side outlet is provided with a drilling fluid outlet, the ultrahigh pressure drill bit comprises a drill bit conventional flow passage, a drill bit ultrahigh pressure flow passage, an ultrahigh pressure flow passage connecting device, a conventional nozzle and an ultrahigh pressure nozzle, one end of the ultrahigh pressure flow passage connecting device is connected with the ultrahigh pressure flow passage, one end of the ultrahigh pressure flow passage connecting device is connected with the top end of the drill bit ultrahigh pressure flow passage, the ultrahigh pressure nozzle is connected with the bottom end of the drill bit ultrahigh pressure flow passage, the ultrahigh pressure nozzle is arranged on a blade with an eccentricity smaller than the size of the drill bit, and drilling fluid flowing out through a lateral outlet is sprayed out through the conventional flow passage of the drill bit by the conventional nozzle.
2. The drilling speed-increasing device for the horizontal well is characterized in that the bearing is mounted on a shaft head of a turbine shaft for supporting the turbine shaft to rotate, the turbine is mounted on a shaft body of the turbine shaft, and the valve disc is mounted on the shaft diameter of the turbine shaft through threaded connection.
3. The drilling speed-increasing device for the horizontal well according to claim 1, wherein the high-pressure water jet supercharger comprises a plunger shaft, a spline outer cylinder, a lower spring outer cylinder, a rigid retainer ring, a lower spring, a plunger, a booster cylinder outer cylinder, a sealing assembly, a water inlet valve, a booster cylinder fixing steel bushing, a booster cylinder assembly, a water outlet valve and an ultrahigh pressure runner, the upper end of the plunger shaft is in threaded connection with the bottom end of an impactor outer cavity, the lower end of the plunger shaft is in threaded connection with the top end of the plunger, the bottom of the plunger is arranged in the booster assembly, the bottom of the plunger is provided with the sealing assembly, the plunger shaft is provided with the spline which is matched with the spline outer cylinder, the rigid retainer ring is arranged on the plunger shaft in the lower spring outer cylinder, the spline outer cylinder is connected with the lower spring outer cylinder through the thread, the lower spring sleeved on the plunger shaft is arranged in the lower spring outer cylinder, the bottom of the lower spring outer cylinder is connected with the booster cavity outer cylinder through the thread, the top end of the fixed steel bushing of the pressure cylinder is abutted against the bottom of the lower spring outer cylinder, the bottom end of the fixed steel bushing of the pressure cylinder is abutted against the top end of the periphery of the pressure cylinder assembly, the bottom end of the periphery of the pressure cylinder assembly is abutted against the step at the bottom end of the pressure cavity outer cylinder, and the bottom of the pressure cylinder assembly is provided with a water outlet valve which is connected with an ultrahigh pressure flow channel.
4. The drilling acceleration device for the horizontal well according to claim 3, characterized in that the lateral outlet is arranged on the plunger, and most drilling fluid is allowed to flow to the pressurization cavity outer barrel through the lateral outlet of the plunger.
5. The drilling speed-increasing device for the horizontal well is characterized in that a lower conversion joint is arranged at the bottom of the pressurizing cavity outer barrel and is connected with an ultrahigh pressure drill bit.
6. The drilling speed-increasing device for the horizontal well according to any one of claims 1 to 5, wherein the common drilling fluid flow passage and the ultrahigh pressure drilling fluid flow passage are arranged at the axial center of the speed-increasing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111200578.8A CN114033310A (en) | 2021-10-15 | 2021-10-15 | Drilling speed-increasing device for horizontal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111200578.8A CN114033310A (en) | 2021-10-15 | 2021-10-15 | Drilling speed-increasing device for horizontal well |
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| Publication Number | Publication Date |
|---|---|
| CN114033310A true CN114033310A (en) | 2022-02-11 |
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|---|---|---|---|
| CN202111200578.8A Pending CN114033310A (en) | 2021-10-15 | 2021-10-15 | Drilling speed-increasing device for horizontal well |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116696241A (en) * | 2023-07-31 | 2023-09-05 | 陕西星通石油工程技术有限公司 | On-line monitoring PDC drill bit |
-
2021
- 2021-10-15 CN CN202111200578.8A patent/CN114033310A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116696241A (en) * | 2023-07-31 | 2023-09-05 | 陕西星通石油工程技术有限公司 | On-line monitoring PDC drill bit |
| CN116696241B (en) * | 2023-07-31 | 2023-10-13 | 陕西星通石油工程技术有限公司 | On-line monitoring PDC drill bit |
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