CN113090212A - Vibration drag reduction tool for well drilling - Google Patents
Vibration drag reduction tool for well drilling Download PDFInfo
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- CN113090212A CN113090212A CN202010019260.9A CN202010019260A CN113090212A CN 113090212 A CN113090212 A CN 113090212A CN 202010019260 A CN202010019260 A CN 202010019260A CN 113090212 A CN113090212 A CN 113090212A
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- 238000005553 drilling Methods 0.000 title claims abstract description 36
- 230000009467 reduction Effects 0.000 title claims abstract description 19
- 230000003068 static effect Effects 0.000 claims abstract description 57
- 239000011148 porous material Substances 0.000 claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 7
- 238000002347 injection Methods 0.000 claims description 19
- 239000007924 injection Substances 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 16
- 239000000956 alloy Substances 0.000 claims description 7
- 229910045601 alloy Inorganic materials 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 210000004907 gland Anatomy 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 8
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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
- E21B28/00—Vibration generating arrangements for boreholes or wells, e.g. for stimulating production
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- Life Sciences & Earth Sciences (AREA)
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- 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)
- Details Of Valves (AREA)
Abstract
The invention relates to a vibration drag reduction tool for well drilling, which comprises a hollow external structure formed by sequentially connecting an upper joint, an outer shell and a lower joint, and a hydraulic rotary driving mechanism arranged in the external structure. The hydraulic rotary driving mechanism mainly comprises a rotary shaft, a movable valve and a static valve; a plurality of jet holes are uniformly distributed on the pipe wall in the middle of the rotating shaft, and the upper end of the rotating shaft is in sealed rotating fit with an external structure; the upper part of the movable valve is fixedly connected with the lower end of the rotating shaft, and the pipe wall of the lower part is provided with a plurality of through holes A; the pipe wall of the static valve is provided with a plurality of through holes B, the base at the lower part of the static valve is provided with a plurality of pore channels, the base of the static valve is sealed and fixed with an external structure, and the through hole A of the movable valve and the through hole B of the static valve form the cooperation of an interval rotary switch. The invention has the beneficial effects that: the tool adopts the rotating shaft to replace a screw motor, so that the cost is greatly reduced; the movable valve is not subjected to axial impact force, cannot be vibrated to be broken and has high reliability.
Description
Technical Field
The invention relates to a vibration tool in the field of well drilling tools, in particular to a vibration drag reduction tool for well drilling.
Background
With the continuous improvement of the drilling technology, the large-displacement well and the long horizontal-section horizontal well are more and more, the well track is more and more complicated, and the friction resistance is more and more large. During the drilling process, the pressure supporting phenomenon often occurs, particularly, during sliding drilling, real and effective drilling pressure cannot be applied to a drill bit, the tool face is difficult to swing, and the directional efficiency is low. At present, the main method for solving the problem at home and abroad is to use a hydraulic oscillator. The tool generates vibration along the axial direction or the radial direction of a drill column through the hydraulic action, and the static friction between a drilling tool and a well wall is converted into dynamic friction by utilizing the vibration, so that the friction resistance in the drilling process is reduced, the bit pressure transmission effect is improved, and the mechanical drilling speed is further improved. The basic principle of the hydraulic oscillator with better field application effect is as follows: the screw motor drives the disc valve to rotate, so that the flow area inside the tool is periodically changed, and periodic axial vibration is generated. However, the hydraulic oscillator has some problems: the screw motor is adopted, so that the cost is high; the disk valve is impacted axially, and is easy to be vibrated and broken after long-time working.
Disclosure of Invention
The invention provides a vibration drag reduction tool for well drilling, aiming at solving the problems that the conventional hydraulic oscillator is high in cost and a disc valve is easy to vibrate and break.
The technical scheme of the invention is as follows:
the utility model provides a well drilling is with vibration drag reduction instrument, includes that top connection, shell body and lower clutch connect gradually the cavity exterior structure of constituteing after to and set up the hydraulic rotary drive mechanism in the exterior structure, wherein: the hydraulic rotary driving mechanism comprises a rotary shaft, a movable valve and a static valve.
The rotating shaft is of a cylindrical structure, the upper part and the middle part of the rotating shaft are communicated with an inner hole of the upper connector, a plurality of injection holes are uniformly distributed on the pipe wall of the middle part of the rotating shaft along the circumferential direction and the axial direction, the axes of the injection holes are tangent to the circle of the inner hole of the rotating shaft, the injection holes are communicated with the hollow inner hole of the rotating shaft, the outer part of the upper end of the rotating shaft is in sealed rotary fit with the hollow outer structure, and the middle part of the;
the movable valve is of a cylindrical structure, the cylinder bottom at the upper part of the movable valve is fixedly connected with the lower end of the rotating shaft, and the pipe wall at the lower part of the movable valve is provided with a plurality of through holes A which are uniformly distributed along the circumferential direction of the movable valve;
the static valve is of a cylindrical or tubular structure, a plurality of through holes B are uniformly distributed along the circumferential direction of the static valve on the upward convex pipe wall of the static valve, a plurality of pore channels penetrating through the upper end surface and the lower end surface of the base are arranged on the base at the lower part of the static valve, the base of the static valve is fixed with the hollow external structure in a sealing way, the upward convex part of the static valve and the pipe wall at the lower part of the movable valve form sealing rotary fit, and the through hole A of the movable valve and the through hole B of the static valve form interval rotary switch fit;
the through hole A of the movable valve and the through hole B of the static valve are respectively communicated with the annular hole cavity in the middle of the rotating shaft and the inner hole of the lower connector.
The above scheme further comprises:
the outer part of the upper end of the rotating shaft is provided with a bearing seat, the bearing seat is provided with a bearing A, and the upper part of the rotating shaft is in sealed rotary fit with the hollow outer structure through the bearing A and the bearing seat.
The bearing seat is fixedly connected with the outer shell in a sealing mode, the bearing A is arranged on a step groove in the bearing seat, a compression nut of a hollow structure is arranged above the bearing seat, and the compression nut is connected with an inner hole of the upper connector in a sealing mode and is matched with the rotating shaft in an axial limiting mode.
The supporting barrel is of a hollow structure and sleeved on the inner wall of the outer shell, the inner wall of the supporting barrel is provided with a centering sleeve, the outer wall of the centering sleeve is axially provided with a plurality of flow guide grooves, the inner wall of the centering sleeve is provided with a bearing B, and the centering sleeve is connected with the supporting barrel and then forms rotating centering fit with the rotating shaft.
The lower end part of the rotating shaft is provided with an outward convex edge which is matched with the centering sleeve to axially limit the rotating shaft.
The lower end of the supporting cylinder is located on a base of the static valve and axially limits the static valve.
The middle pipe wall of the rotating shaft is provided with a stage along the axial direction, and each stage is provided with a jet hole along the circumferential direction.
The cross sections of the through holes A of the movable valve and the through holes B of the static valve are the same and are one.
The static valve base is provided with a hole, and the sum of the cross sections of all the hole channels is smaller than the sum of the cross sections of the through holes A of all the movable valves.
And a hard alloy nozzle is embedded and welded in the spray hole.
The invention has the beneficial effects that: the tool adopts the rotating shaft to replace a screw motor, so that the cost is greatly reduced; the movable valve is not subjected to axial impact force, cannot be vibrated to be broken and has high reliability.
Drawings
FIG. 1 is a schematic diagram of a vibratory drag reduction tool for drilling according to the present invention;
FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken at B-B of FIG. 1;
FIG. 4 is a cross-sectional view taken at C-C of FIG. 1;
FIG. 5 is a front view of the centering sleeve (14) of FIG. 1;
in the drawings of fig. 1-5, 1 is an upper joint, 2 is a compression nut, 3 and 16 are sealing rings, 4 is a bearing seat, 5 is a rotating shaft, 6 is a small bearing, 7 is a movable valve, 8 is a static valve, 9 is an outer shell, 10 is a lower joint, 11 is a large bearing, 12 is a bearing pad, 13 is a fastening bolt, 14 is a centering sleeve, 15 is a supporting cylinder, 17 is a hard alloy nozzle, 501 is a jet hole, 701 is a through hole A, 801 is a through hole B, 802 is a base, 803 is a circular hole channel, 1401 is a threaded hole, 1501 is a through hole C.
Detailed Description
The following will be described in further detail with reference to the accompanying drawings.
Example 1
A vibration drag reduction tool for well drilling comprises a hollow external structure (namely the external structure of the tool) formed by sequentially connecting an upper joint 1, an outer shell 9 and a lower joint 10 through threads, wherein a hydraulic rotary driving mechanism is arranged in the external structure and mainly comprises a rotating shaft 5, a movable valve 7 and a static valve 8. Wherein:
the rotary shaft 5 is of a cylindrical structure, the upper part and the middle part of the rotary shaft are communicated with an inner hole of an upper connector, a plurality of injection holes 501 (the specific number is calculated according to the flow rate and pressure of drilling fluid and the caliber of the injection holes) are uniformly distributed on the pipe wall of the middle part of the rotary shaft 5 along the circumferential direction and the axial direction, the axial lines of the injection holes 501 are tangent to the inner hole circle of the rotary shaft 5, the injection holes 501 are communicated with the hollow inner hole of the rotary shaft 5, the outer part of the upper end of the rotary shaft 5 and a hollow outer structure (the upper connector can be used as an upper connector, and can also be;
the movable valve 7 is of a cylindrical structure, the cylinder bottom (a closed structure) at the upper part of the movable valve is fixedly connected with the lower end of the rotating shaft 5 (can be in threaded connection, can also be in direct welding or in an integrated structure, and is selected according to space installation conditions), and the pipe wall at the lower part is provided with a plurality of through holes A701 uniformly distributed along the circumferential direction of the pipe wall;
the static valve 8 is of a cylindrical or tubular structure, a plurality of through holes B801 uniformly distributed along the circumferential direction of the static valve 8 are formed in the upward protruding pipe wall of the static valve 8, a plurality of pore channels 803 penetrating through the upper end face and the lower end face of the base 802 are formed in the base 802 at the lower part of the static valve 8, the base 802 of the static valve 8 is fixed with the hollow external structure in a sealing mode (sealing rings are matched and connected with threads in a sealing mode and sealed), the upward protruding part of the static valve 8 is in sealed rotary fit with the pipe wall at the lower part of the movable valve 7, and the through holes A701 of the movable valve 7 and the through holes B801 of the static valve 8;
the through hole A701 of the movable valve 7 and the through hole B801 of the static valve 8 are respectively communicated with the annular hole cavity in the middle of the rotating shaft 5 and the inner hole of the lower connector 10, after drilling fluid enters the annular hole cavity along the hollow part and the injection hole of the upper connector 1 and the rotating shaft 5, one part of the drilling fluid directly enters the lower connector through the hole channel 803 of the static valve 8, and the other part of the drilling fluid forms hydraulic drive pulse through the through hole A701 of the movable valve 7 and the through hole B801 of the static valve 8.
Example 2
On the basis of the above embodiment 1, the method further includes:
and a bearing seat 4 is arranged outside the upper end of the rotating shaft 5, a bearing A11 is arranged on the bearing seat 4, and the upper part of the rotating shaft 5 forms sealed rotating fit with a hollow external structure through a bearing A11 and the bearing seat 4.
Bearing frame 4 is fixed with shell body 9 sealing connection, and bearing A11 establishes on the step groove in bearing frame 4, is equipped with hollow structure's gland nut 2 above bearing frame 4, and gland nut 2 and top connection hole sealing connection to carry out the spacing cooperation of axial to rotation axis 5.
The inner wall of the outer shell 9 is sleeved with a supporting cylinder 15 with a hollow structure, the inner wall of the supporting cylinder 15 is provided with a centering sleeve 14, the outer wall of the centering sleeve 14 is axially provided with a plurality of flow guide grooves, the inner wall of the centering sleeve 14 is provided with a bearing B6, and the centering sleeve 14 is connected with the supporting cylinder 15 and then forms rotating centering matching with the rotating shaft 5.
The structure of embodiment 2 is more convenient for processing and installation of subassembly, increases the bearing simultaneously, can greatly reduce the wearing and tearing of bearing frame, improves rotatory efficiency.
Example 3
On the basis of the embodiment 1 or the embodiment 2, further:
the lower end part of the rotating shaft 5 is provided with an outward convex edge which is matched with the righting sleeve 14 to axially limit the rotating shaft 5.
The lower end of the support cylinder 15 is located on a base 802 of the static valve 8 and axially limits the static valve 8.
The middle pipe wall of the rotating shaft 5 is provided with 2-5 stages along the axial direction, and each stage is provided with 3-5 injection holes 501 along the circumferential direction.
The section of the through hole A701 of the movable valve 7 is the same as that of the through hole B801 of the static valve 8, and the number of the through holes is 3-8.
The base 802 of the static valve 8 is provided with 2-6 pore channels 803, and the sum of the cross sections of all the pore channels is smaller than the sum of the cross sections of the through holes A701 of all the movable valves 7.
And a hard alloy nozzle 17 is embedded and welded in the injection hole 501.
Exemplary embodiment 4
Fig. 1 is a schematic structural diagram of a vibration drag reduction tool for drilling, which mainly comprises an upper joint 1, a compression nut 2, a large bearing 11, a small bearing 6, a bearing seat 4, a bearing pad 12, a rotating shaft 5, an outer shell 9, a supporting cylinder 15, a centering sleeve 14, a movable valve 7, a static valve 8, a hard alloy nozzle 17, a fastening bolt 13, a lower joint 10 and sealing rings 3 and 16.
Wherein, the two ends of the upper joint 1, the outer shell 9 and the lower joint 10 are all provided with threads, and the three are sequentially connected together through the threads to form an external assembly.
The bearing seat 4, the support cylinder 15 and the static valve 8 are arranged in the outer shell 9 in sequence; a sealing ring 3 is arranged between the bearing seat 4 and the outer shell 9, and a sealing ring 16 is arranged between the static valve 8 and the outer shell 9; the upper end surface of the bearing seat 4 is contacted with the lower end surface of the upper joint 1, and the lower end surface of the bearing seat is contacted with the upper end surface of the supporting cylinder 15; the large bearing 11 and the bearing pad 12 are arranged in the bearing seat 4 in sequence; the upper end of the rotating shaft 5 passes through the large bearing 11 and then is connected with the compression nut 2 through threads; the rotating shaft 5 is a tubular structure with unequal wall thickness, the diameter of an inner hole at the upper end is larger than that of an inner hole at the lower end, external threads are respectively arranged at the upper end and the lower end, a conical convex edge is arranged on the outer surface, and a plurality of round holes 501 are uniformly distributed on the pipe wall along the axis direction; a small bearing 6 is arranged between the righting sleeve 14 and the rotating shaft 5; the lower part of the movable valve 7 is sleeved with the upper part of the static valve 8, and the upper end of the movable valve 7 is connected with the rotating shaft 5 through threads; the movable valve 7 is of a stepped tubular structure, an inner hole of the movable valve is divided into two parts which are not communicated with each other at a step, and the upper pipe wall is provided with 6 through holes A701 which are uniformly distributed along the circumferential direction of the movable valve; the upward convex pipe wall of the static valve 8 is provided with 4 through holes B801 uniformly distributed along the circumference, and the base 802 is provided with 4 circular hole channels 803 penetrating through the upper end surface and the lower end surface of the base 802.
4 injection holes 501 are uniformly distributed on the pipe wall of the rotating shaft 5 shown in fig. 2 along the circumferential direction, the axes of the injection holes 501 are tangent to the inner hole circle of the rotating shaft 5, the injection holes 501 are communicated with the inner hole of the rotating shaft 5, and the hard alloy nozzle 17 is embedded and welded in the injection holes 501.
Three through holes C1501 are uniformly distributed on the wall of the supporting cylinder 15 shown in FIG. 3 along the circumferential direction, and the centering sleeve 14 is fixed in the supporting cylinder 15 through 3 fastening bolts 13.
The upper pipe wall of the movable valve 7 shown in fig. 4 is provided with 6 through holes A701 uniformly distributed along the circumferential direction; the upward convex pipe wall of the static valve 8 is provided with 6 through holes B801 uniformly distributed along the circumference, and the base 802 is provided with 4 circular hole channels 803 penetrating through the upper end surface and the lower end surface of the base 802.
The centralizing sleeve 14 shown in fig. 5 is uniformly provided with 3 bosses along the circumferential direction, and threaded holes 1401 are arranged in the bosses.
The vibration drag reduction tool is used in a drilling process, and when the vibration drag reduction tool is used, the tool is connected in series in a drill string and is connected at a position between 100m and 200m above a drill bit. Drilling fluid in the upper drill rod enters the rotating shaft 5 through the upper connector 1 and is injected into an annular cavity formed by the rotating shaft 5 and the supporting cylinder 15 at a high speed through the injection hole 501 and the hard alloy nozzle 17; the high-speed injection of the drilling fluid enables the rotating shaft 5 to rotate, and then the movable valve 7 is driven to rotate; a small part of the drilling fluid entering the cavity enters the lower drill string through a circular hole 803 on a base 802 of the static valve 8 and the lower connector 10, and a large part of the drilling fluid passes through a through hole A701 on the movable valve 7, a through hole B801 on the static valve 8 and the lower connector 10 and then flows into the lower drill string; because the movable valve 7 rotates relative to the static valve 8, the flow area inside the tool changes periodically, and further the tool vibrates periodically, so that the drill string is driven to vibrate, and the static friction between the drill string and the well wall is changed into dynamic friction.
Claims (10)
1. The utility model provides a well drilling is with vibration drag reduction instrument, includes hollow exterior structure that constitutes after top connection (1), shell body (9) and lower clutch (10) connect gradually to and set up the hydraulic rotary driving mechanism in the exterior structure, characterized by, hydraulic rotary driving mechanism include rotation axis (5), move valve (7) and quiet valve (8), wherein:
the rotary shaft (5) is of a cylindrical structure, the upper part and the middle part of the rotary shaft are communicated with an inner hole of the upper joint, a plurality of injection holes (501) are uniformly distributed on the pipe wall of the middle part of the rotary shaft (5) along the circumferential direction and the axial direction, the axial lines of the injection holes (501) are tangent to the inner hole circle of the rotary shaft (5), the injection holes (501) are communicated with the hollow inner hole of the rotary shaft (5), the outer part of the upper end of the rotary shaft (5) is in sealed rotary fit with the hollow outer structure, and the middle part of the rotary shaft (5);
the movable valve (7) is of a cylindrical structure, the cylinder bottom at the upper part of the movable valve is fixedly connected with the lower end of the rotating shaft (5), and the pipe wall at the lower part is provided with a plurality of through holes A (701) which are uniformly distributed along the circumferential direction of the movable valve;
the static valve (8) is of a cylindrical or tubular structure, a plurality of through holes B (801) are uniformly distributed along the circumferential direction of the static valve (8) on the upward convex pipe wall of the static valve (8), a plurality of pore channels (803) penetrating through the upper end face and the lower end face of the base (802) are arranged on the base (802) at the lower part of the static valve (8), the base (802) of the static valve (8) is fixed with the hollow external structure in a sealing way, the upward convex part of the static valve (8) and the pipe wall at the lower part of the movable valve (7) form sealed rotary fit, and the through hole A (701) of the movable valve (7) and the through hole B (801) of the static valve (8) form;
the through hole A (701) of the movable valve (7) and the through hole B (801) of the static valve (8) are respectively communicated with the annular hole cavity in the middle of the rotating shaft (5) and the inner hole of the lower connector.
2. The drilling vibration drag reduction tool of claim 1, wherein: the bearing seat (4) is arranged outside the upper end of the rotating shaft (5), the bearing seat (4) is provided with a bearing A (11), and the upper part of the rotating shaft (5) is in sealed rotary fit with the hollow external structure through the bearing A (11) and the bearing seat (4).
3. The drilling vibration drag reduction tool of claim 2, wherein: bearing frame (4) are fixed with shell body (9) sealing connection, and bearing A (11) are established on bearing frame (4) inner step groove, are equipped with hollow structure's gland nut (2) above bearing frame (4), and gland nut (2) and top connection hole sealing connection to carry out the spacing cooperation of axial to rotation axis (5).
4. A drilling vibration drag reducing tool as claimed in claim 1, 2 or 3, wherein: the inner wall of the outer shell (9) is sleeved with a supporting cylinder (15) of a hollow structure, the inner wall of the supporting cylinder (15) is provided with a centering sleeve (14), the outer wall of the centering sleeve (14) is axially provided with a plurality of flow guide grooves, the inner wall of the centering sleeve (14) is provided with a bearing B (6), and the centering sleeve (14) is connected with the supporting cylinder (15) and then forms rotating centering matching with the rotating shaft (5).
5. The drilling vibration drag reduction tool of claim 4, wherein: the lower end part of the rotating shaft (5) is provided with an outward convex edge, and the outward convex edge is matched with the centering sleeve (14) to axially limit the rotating shaft (5).
6. The drilling vibration drag reduction tool of claim 4, wherein: the lower end of the support cylinder (15) is located on a base (802) of the static valve (8) and axially limits the static valve (8).
7. The drilling vibration drag reduction tool of claim 4, wherein: the middle pipe wall of the rotating shaft (5) is provided with 2-5 stages along the axial direction, and each stage is provided with 3-5 jet holes (501) along the circumferential direction.
8. The drilling vibration drag reduction tool of claim 7, wherein: the section of the through hole A (701) of the movable valve (7) is the same as that of the through hole B (801) of the static valve (8), and the number of the through holes is 3-8.
9. The drilling vibration drag reduction tool of claim 8, wherein: 2-6 pore channels (803) are arranged on a base (802) of the static valve (8), and the sum of the cross sections of all the pore channels is smaller than the sum of the cross sections of the through holes A (701) of all the movable valves (7).
10. A drilling vibration drag reducing tool as claimed in claim 1, 2 or 3, wherein: and a hard alloy nozzle (17) is embedded and welded in the jet hole (501).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010019260.9A CN113090212A (en) | 2020-01-08 | 2020-01-08 | Vibration drag reduction tool for well drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010019260.9A CN113090212A (en) | 2020-01-08 | 2020-01-08 | Vibration drag reduction tool for well drilling |
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| Publication Number | Publication Date |
|---|---|
| CN113090212A true CN113090212A (en) | 2021-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010019260.9A Pending CN113090212A (en) | 2020-01-08 | 2020-01-08 | Vibration drag reduction tool for well drilling |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140166368A1 (en) * | 2011-04-21 | 2014-06-19 | China University Of Petroleum (East China) | Method and system for improving drilling speed by using drill speed vibration |
| CN105041201A (en) * | 2015-07-09 | 2015-11-11 | 西南石油大学 | Hydraulic gentle vibration speed acceleration drill tool |
| CN106437529A (en) * | 2016-09-27 | 2017-02-22 | 中石化石油工程技术服务有限公司 | Equal flow pulse jet drilling bit device and design method thereof |
| CN208456505U (en) * | 2018-06-08 | 2019-02-01 | 中石化石油工程技术服务有限公司 | A kind of drilling water forced oscillation device |
| CN208534403U (en) * | 2018-07-31 | 2019-02-22 | 湛江市巨合安全科技有限公司 | A kind of horizontal well impulse hunting drill feeding facility |
| CN110485927A (en) * | 2019-08-26 | 2019-11-22 | 北京工业大学 | A kind of three-dimensional hydraulic oscillation drag reduction drilling tool |
| CN211448586U (en) * | 2020-01-08 | 2020-09-08 | 中石化石油工程技术服务有限公司 | Vibration drag reduction tool for well drilling |
-
2020
- 2020-01-08 CN CN202010019260.9A patent/CN113090212A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140166368A1 (en) * | 2011-04-21 | 2014-06-19 | China University Of Petroleum (East China) | Method and system for improving drilling speed by using drill speed vibration |
| CN105041201A (en) * | 2015-07-09 | 2015-11-11 | 西南石油大学 | Hydraulic gentle vibration speed acceleration drill tool |
| CN106437529A (en) * | 2016-09-27 | 2017-02-22 | 中石化石油工程技术服务有限公司 | Equal flow pulse jet drilling bit device and design method thereof |
| CN208456505U (en) * | 2018-06-08 | 2019-02-01 | 中石化石油工程技术服务有限公司 | A kind of drilling water forced oscillation device |
| CN208534403U (en) * | 2018-07-31 | 2019-02-22 | 湛江市巨合安全科技有限公司 | A kind of horizontal well impulse hunting drill feeding facility |
| CN110485927A (en) * | 2019-08-26 | 2019-11-22 | 北京工业大学 | A kind of three-dimensional hydraulic oscillation drag reduction drilling tool |
| CN211448586U (en) * | 2020-01-08 | 2020-09-08 | 中石化石油工程技术服务有限公司 | Vibration drag reduction tool for well drilling |
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