CN110965940A - Automatic vertical drilling device - Google Patents
Automatic vertical drilling device Download PDFInfo
- Publication number
- CN110965940A CN110965940A CN201911345929.7A CN201911345929A CN110965940A CN 110965940 A CN110965940 A CN 110965940A CN 201911345929 A CN201911345929 A CN 201911345929A CN 110965940 A CN110965940 A CN 110965940A
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- Prior art keywords
- pressure
- sleeve
- hydraulic
- drilling device
- automatic vertical
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/10—Correction of deflected boreholes
Abstract
The invention discloses an automatic vertical drilling device, which comprises a sleeve sleeved outside a drilling transmission shaft, wherein the sleeve is connected with the transmission shaft through a bearing; the sleeve is sleeved with a pressure conversion barrel, the upper end and the lower end of the pressure conversion barrel are fixedly connected with the sleeve through an upper sealing end and an inclined correcting end respectively, and a pressure cavity is arranged between the pressure conversion barrel and the sleeve; the pressure chamber is internally provided with an annular first piston which can move up and down, a plurality of push plates are arranged around the periphery of the deviation correcting end, the transmission shaft is provided with a liquid discharge hole, and the liquid discharge hole is communicated with the upper end of the pressure chamber through a liquid discharge channel which is correspondingly arranged on the sleeve. The invention realizes the function of correcting the inclination of the drill bit by utilizing the pressure of the drilling fluid while realizing the balance of the pressure difference inside and outside the drilling tool, does not need to help other energy, has the advantages of good inclination correcting effect and energy conservation, and is easier to realize technically.
Description
Technical Field
The invention relates to the technical field of vertical drilling, in particular to an automatic vertical drilling device.
Background
Drilling is the inevitable way to exploit subsurface hydrocarbon resources to the surface. During the drilling process, the drilled vertical well (or vertical well section) cannot be completely vertical or the total well deviation is 0 due to various reasons such as high steep deviation geological structure, uneven hardness of stratum, drill bit type and structure, drilling tool combination and the like. The automatic vertical drilling can effectively solve the problem of large drilling pressure and well deviation control, can achieve the purposes of increasing the drilling pressure and improving the mechanical drilling speed in the drilling of a high and steep structure hard stratum, and can also realize the good control of a well body. Therefore, the vertical drilling device with good deviation rectification effect is especially important to design and can be widely applied to the drilling industry.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention provides an automatic vertical drilling device for correcting a borehole deviation by using drilling water pressure.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows:
the automatic vertical drilling device comprises a sleeve sleeved outside a drilling transmission shaft, wherein the sleeve is connected with the transmission shaft through a bearing; the upper end of the sleeve is in threaded connection with an upper connector, the sleeve is sleeved with a pressure conversion barrel, the upper end and the lower end of the pressure conversion barrel are fixedly connected with the sleeve through an upper sealing end and an inclined correcting end respectively, and a pressure cavity is formed between the pressure conversion barrel and the sleeve; an annular first piston which can move up and down is arranged in the pressure cavity, a fixed platform which extends into the pressure cavity is arranged on the pressure conversion cylinder, a gap is arranged between the fixed platform and the sleeve, and the first piston is connected with the fixed platform through a first spring;
a plurality of push plates are arranged around the periphery of the inclined correcting end, the push plates are arranged on the hydraulic mechanism, and the liquid inlet end of the hydraulic mechanism is communicated with the bottom of the pressure cavity through a liquid guide pipe; the transmission shaft is provided with a liquid discharge hole which is communicated with the upper end of the pressure cavity through a liquid discharge channel corresponding to the sleeve.
Furthermore, the hydraulic mechanism comprises a hydraulic cavity arranged in the inclined correcting end, and the right end of the hydraulic cavity is communicated with the bottom of the pressure cavity through a liquid guide pipe; a second piston is arranged in the hydraulic cavity and connected with the push plate through a push rod, and the push rod penetrates through the hydraulic cavity.
Furthermore, a groove for placing the push plate is formed in the periphery of the inclined correcting end, and a first sealing ring is arranged at the joint of the push rod and the hydraulic cavity.
Furthermore, a plurality of second sealing rings are embedded on the outer circumference of the second piston.
Furthermore, a second spring is sleeved outside the push rod and connected with the second piston and the inner wall of the hydraulic cavity.
Further, the liquid discharge channel is a gap between two sealing bearings arranged between the transmission shaft and the sleeve, and the liquid discharge hole is arranged between the two sealing bearings.
Furthermore, the upper sealing end is provided with a connecting part which is inserted into a connecting groove arranged at the lower end of the upper connector, and a cushion pad is arranged in the connecting groove.
Further, a hydraulic sensor is arranged in the pressure cavity.
Furthermore, four push plates which are uniformly distributed in a circumferential mode are arranged on the periphery of the inclined correcting end, and the push plates are arc plates attached to the outer surface of the inclined correcting end.
Furthermore, the inclined correcting end and the upper sealing end are both in threaded connection with the inner wall of the pressure conversion barrel.
The invention has the beneficial effects that: the scheme is applied to vertical drilling, the drilling deviation rectifying mechanism is arranged near the drill bit end, and the pressure of high-pressure water discharged from a water hole during drilling is converted into hydraulic pressure for rectifying the deviation of a drill bit. The during operation, this device is installed and is being close to the drill bit end, the transmission shaft drives the high-speed rotation of drill bit, the outage that discharged high-pressure drilling fluid was seted up through the transmission shaft in the well gets into the pressure chamber, highly compressed drilling fluid promotes first piston downstream, give the hydraulic oil of first piston below with pressure transmission, hydraulic oil does work to hydraulic pressure mechanism, promote the push pedal and withstand the wall of a well, the counter force of the wall of a well promotes the push pedal equally, push pedal simultaneous action through all directions, avoid the drill bit slope, reach the purpose that the well drilling was rectified to one side.
This scheme utilizes the pressure of drilling fluid self when realizing balanced drilling tool internal and external differential pressure, realizes the function of rectifying a deviation of drill bit, need not have with the help of the effect of other energies, has the advantage of rectifying effectual, the energy saving of inclining, changes in simultaneously technically the realization. The high-pressure hydraulic oil pushes a second piston in the hydraulic cavity to move so as to push the push plate; when the drilling stops, the pressure of the hydraulic oil is relieved, the first spring drives the first piston to move upwards and return to the initial position, and the second spring drives the push plate to move backwards and return to the groove, so that the push plate is tightly attached to the periphery of the inclined correcting end and is integrated with the drilling tool. The first sealing ring is used for sealing the joint of the push rod and the hydraulic cavity, and mud and sand during drilling are prevented from entering the hydraulic cavity.
The second piston achieves a sealing effect through a second sealing ring and can move freely; a liquid discharge channel of the drilling fluid is formed by a gap between the two sealing bearings, so that the high-speed rotation of the transmission shaft is not influenced, and the drilling fluid can be freely discharged from the transmission shaft. The connecting part of the upper sealing end is inserted into the connecting groove, and a cushion pad is arranged to reduce vibration during drilling operation, so that reliability is ensured; the hydraulic sensor is used for detecting the pressure of hydraulic oil, so that the influence of liquid leakage on the pressure is avoided, and the drilling is stopped in time.
Drawings
Fig. 1 is a schematic structural view of an automatic vertical drilling apparatus.
Fig. 2 is a schematic structural view of the hydraulic mechanism.
The device comprises a first spring, a second spring, a sleeve, an upper sealing end, a sealing bearing, a pressure cavity, a first piston, a pressure conversion cylinder, a first spring, a first piston, a pressure conversion cylinder, a first connector, a connecting part, 11, a liquid discharge hole, a fixing table, a hydraulic sensor, a liquid guide pipe, a hydraulic mechanism, a connecting spray head, a push plate, a second piston, a second sealing ring, a push rod, a first sealing ring, a second sealing ring, a push rod, a first sealing ring, a push plate, a push rod, a second sealing ring.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined in the appended claims, and all matters produced by the invention using the inventive concept are protected.
As shown in fig. 1 and 2, the automatic vertical drilling device comprises a casing 2 sleeved outside a drilling transmission shaft, wherein the casing 2 is connected with the transmission shaft through a bearing; the upper end of the sleeve 2 is in threaded connection with an upper connector 9, and the connector is used for being connected with a drilling tool at the upper end. A pressure conversion barrel 7 is sleeved outside the sleeve 2, the upper end and the lower end of the pressure conversion barrel 7 are respectively and fixedly connected with the sleeve 2 through an upper sealing end 3 and an inclination correcting end 22, and a pressure cavity 5 is arranged between the pressure conversion barrel 7 and the sleeve 2; the pressure chamber 5 is internally provided with a first piston 6 with an annular structure which can move up and down, the pressure conversion cylinder 7 is provided with an annular fixed platform 12 which extends into the pressure chamber 5, a gap is arranged between the fixed platform 12 and the sleeve 2, and the first piston 6 is connected with the fixed platform 12 through a first spring 8.
Four push plates 17 which are uniformly distributed in a circumferential manner are arranged on the periphery of the inclined correcting end 22, the push plates 17 are arranged on the hydraulic mechanism 15, and the liquid inlet end of the hydraulic mechanism 15 is communicated with the bottom of the pressure cavity 5 through the liquid guide pipe 14; the transmission shaft is provided with a liquid discharge hole 11, and the liquid discharge hole 11 is communicated with the upper end of the pressure cavity 5 through a corresponding liquid discharge channel arranged on the sleeve 2. The push plate 17 is an arc-shaped plate attached to the outer surface of the inclined end 22.
The hydraulic mechanism 15 comprises a hydraulic cavity 23 arranged in the inclined end 22, and the right end of the hydraulic cavity 23 is communicated with the bottom of the pressure cavity 5 through a liquid guide pipe 14; a second piston 18 is arranged in the hydraulic cavity 23, the second piston 18 is connected with the push plate 17 through a push rod 20, and the push rod 20 penetrates through the hydraulic cavity 23.
The scheme is applied to vertical drilling, a drilling deviation rectifying mechanism is arranged near the end of a drill bit, the end of a transmission shaft is connected with the drill bit through a connecting nozzle 16, and high-pressure water pressure discharged by a water hole during drilling is converted into hydraulic pressure for rectifying the deviation of the drill bit. The during operation, this device is installed and is being close to the drill bit end, the transmission shaft drives the high-speed rotation of drill bit, the outage 11 that discharged high-pressure drilling fluid was seted up through the transmission shaft in the well gets into pressure chamber 5, highly compressed drilling fluid promotes first piston 6 downstream, give the hydraulic oil of first piston 6 below with pressure transmission, hydraulic oil does work to hydraulic pressure mechanism 15, promote the push pedal 17 and withstand the wall of a well, the counter force of the wall of a well promotes push pedal 17 equally, push pedal 17 simultaneous action through all directions, avoid the drill bit slope, reach the purpose that the well drilling was taken care of one's angle.
The periphery of the inclined end 22 is provided with a groove for placing the push plate 17, the joint of the push rod 20 and the hydraulic cavity 23 is provided with a first sealing ring 21, and the outer circumference of the second piston 18 is embedded with a plurality of second sealing rings 19. The push rod 20 is sleeved with a second spring 1, and the second spring 1 is connected with the second piston 18 and the inner wall of the hydraulic cavity 23.
This scheme utilizes the pressure of drilling fluid self when realizing balanced drilling tool internal and external differential pressure, realizes the function of rectifying a deviation of drill bit, need not have with the help of the effect of other energies, has the advantage of rectifying effectual, the energy saving of inclining, changes in simultaneously technically the realization. The high-pressure hydraulic oil pushes the second piston 18 in the hydraulic cavity 23 to move, so that the push plate 17 is pushed; when the drilling is stopped, the pressure of the hydraulic oil is relieved, the first spring 8 drives the first piston 6 to move upwards and return to the initial position, the second spring 1 drives the push plate 17 to move backwards, and the push plate 17 returns to the groove and is tightly attached to the periphery of the inclined correcting end 22 to form a whole with the drilling tool. The first sealing ring 21 is used for sealing the joint of the push rod 20 and the hydraulic cavity 23, and preventing sediment from entering the hydraulic cavity 23 during drilling.
The flowing back passageway is the clearance between two sealed bearings 4 that sets up between transmission shaft and sleeve pipe 2, and the outage 11 sets up between two sealed bearings 4, and upper seal end 3 is provided with connecting portion 10 and inserts in the connecting groove that the lower extreme was seted up of upper connector 9, is provided with the blotter in the connecting groove. The pressure cavity 5 is internally provided with a hydraulic sensor 13, and the inclined correcting end 22 and the upper sealing end 3 are both in threaded connection with the inner wall of the pressure conversion barrel 7.
The second piston 18 achieves the sealing effect through a second sealing ring 19 and can move freely; a liquid discharge channel of the drilling fluid is formed by a gap between the two sealing bearings 4, so that the high-speed rotation of the transmission shaft is not influenced, and the free discharge of the drilling fluid from the transmission shaft can be realized. The connecting part 10 of the upper sealing end 3 is inserted into the connecting groove, and is provided with a cushion pad to reduce vibration during drilling work, so that reliability is ensured; the hydraulic sensor 13 is used for detecting the pressure of hydraulic oil, so that the influence of liquid leakage on the pressure is avoided, and the drilling is stopped in time.
Claims (10)
1. The automatic vertical drilling device is characterized by comprising a sleeve (2) sleeved outside a drilling transmission shaft, wherein the sleeve (2) is connected with the transmission shaft through a bearing; the upper end of the sleeve (2) is in threaded connection with an upper connector (9), a pressure conversion barrel (7) is sleeved outside the sleeve (2), the upper end and the lower end of the pressure conversion barrel (7) are respectively and fixedly connected with the sleeve (2) through an upper sealing end (3) and an inclined correcting end (22), and a pressure cavity (5) is arranged between the pressure conversion barrel (7) and the sleeve (2); an annular first piston (6) which moves up and down is arranged in the pressure cavity (5), a fixed table (12) which extends into the pressure cavity (5) is arranged on the pressure conversion cylinder (7), a gap is arranged between the fixed table (12) and the sleeve (2), and the first piston (6) is connected with the fixed table (12) through a first spring (8);
a plurality of push plates (17) are arranged on the periphery of the inclination correcting end (22), the push plates (17) are arranged on a hydraulic mechanism (15), and the liquid inlet end of the hydraulic mechanism (15) is communicated with the bottom of the pressure cavity (5) through a liquid guide pipe (14); the transmission shaft is provided with a liquid discharge hole (11), and the liquid discharge hole (11) is communicated with the upper end of the pressure cavity (5) through a corresponding liquid discharge channel arranged on the sleeve (2).
2. Automatic vertical drilling device according to claim 1, characterized in that said hydraulic means (15) comprise a hydraulic chamber (23) opening into the rectifying end (22), the right end of said hydraulic chamber (23) communicating with the bottom of the pressure chamber (5) through a liquid conduit (14); a second piston (18) is arranged in the hydraulic cavity (23), the second piston (18) is connected with the push plate (17) through a push rod (20), and the push rod (20) penetrates through the hydraulic cavity (23).
3. The automatic vertical drilling device according to claim 2, characterized in that a groove for placing the push plate (17) is formed on the periphery of the deviation correcting end (22), and a first sealing ring (21) is arranged at the joint of the push rod (20) and the hydraulic cavity (23).
4. Automatic vertical drilling device according to claim 2, characterized in that the second piston (18) has a plurality of second sealing rings (19) embedded on its outer circumference.
5. Automatic vertical drilling device according to claim 2, characterized in that the push rod (20) is externally sheathed with a second spring (1), and the second spring (1) connects the second piston (18) with the inner wall of the hydraulic chamber (23).
6. Automatic vertical drilling device according to claim 1, characterized in that the drainage channel is a gap between two sealing bearings (4) arranged between the drive shaft and the casing (2), the drainage hole (11) being arranged between the two sealing bearings (4).
7. Automatic vertical drilling device according to claim 1, characterized in that the upper sealing end (3) is provided with a connecting portion (10), the connecting portion (10) being inserted into a connecting groove provided at the lower end of the upper connector (9), the connecting groove being provided with a cushion.
8. Automatic vertical drilling device according to claim 1, characterized in that a hydraulic sensor (13) is arranged in the pressure chamber (5).
9. The automatic vertical drilling device according to claim 1, characterized in that four push plates (17) are arranged around the periphery of the deviation rectifying end (22) and are uniformly distributed in a circumference, and the push plates (17) are arc-shaped plates attached to the outer surface of the deviation rectifying end (22).
10. Automatic vertical drilling device according to claim 1, characterized in that said rectifying end (22) and upper sealing end (3) are both screwed to the inner wall of the pressure conversion drum (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911345929.7A CN110965940B (en) | 2019-12-24 | 2019-12-24 | Automatic vertical drilling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911345929.7A CN110965940B (en) | 2019-12-24 | 2019-12-24 | Automatic vertical drilling device |
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| Publication Number | Publication Date |
|---|---|
| CN110965940A true CN110965940A (en) | 2020-04-07 |
| CN110965940B CN110965940B (en) | 2021-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911345929.7A Active CN110965940B (en) | 2019-12-24 | 2019-12-24 | Automatic vertical drilling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115307966A (en) * | 2022-10-12 | 2022-11-08 | 南通朗高石化设备有限公司 | Ground sampling device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5941321A (en) * | 1998-07-27 | 1999-08-24 | Hughes; W. James | Method and apparatus for drilling a planar curved borehole |
| CN101250982A (en) * | 2008-04-02 | 2008-08-27 | 刘宝林 | Mechanical automatic vertical drilling tool |
| CN104453711A (en) * | 2014-11-04 | 2015-03-25 | 宝鸡石油机械有限责任公司 | Automatic vertical well drilling tool |
| CN106089085A (en) * | 2016-08-10 | 2016-11-09 | 裴绪建 | A kind of machinery vertical drilling tool |
| CN109723383A (en) * | 2017-10-30 | 2019-05-07 | 裴绪建 | A kind of hydraulic automatic vertical drilling tool |
-
2019
- 2019-12-24 CN CN201911345929.7A patent/CN110965940B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5941321A (en) * | 1998-07-27 | 1999-08-24 | Hughes; W. James | Method and apparatus for drilling a planar curved borehole |
| CN101250982A (en) * | 2008-04-02 | 2008-08-27 | 刘宝林 | Mechanical automatic vertical drilling tool |
| CN104453711A (en) * | 2014-11-04 | 2015-03-25 | 宝鸡石油机械有限责任公司 | Automatic vertical well drilling tool |
| CN106089085A (en) * | 2016-08-10 | 2016-11-09 | 裴绪建 | A kind of machinery vertical drilling tool |
| CN109723383A (en) * | 2017-10-30 | 2019-05-07 | 裴绪建 | A kind of hydraulic automatic vertical drilling tool |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115307966A (en) * | 2022-10-12 | 2022-11-08 | 南通朗高石化设备有限公司 | Ground sampling device |
| CN115307966B (en) * | 2022-10-12 | 2022-12-23 | 南通朗高石化设备有限公司 | Ground sampling device |
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| Publication number | Publication date |
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| CN110965940B (en) | 2021-01-26 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20201119 Address after: 610051 No.3, Chengji Road, Longtan Industrial Park, Chenghua District, Chengdu City, Sichuan Province Applicant after: Sichuan Gemstone Machinery Petroleum Bit Co.,Ltd. Applicant after: CHINA NATIONAL PETROLEUM Corp. Address before: 610051 No.3, Chengji Road, Longtan Industrial Park, Chenghua District, Chengdu City, Sichuan Province Applicant before: Sichuan Gemstone Machinery Petroleum Bit Co.,Ltd. |
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