CN115142788A - Automatic vertical drilling device based on turbine generator driving - Google Patents

Automatic vertical drilling device based on turbine generator driving Download PDF

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Publication number
CN115142788A
CN115142788A CN202210779333.3A CN202210779333A CN115142788A CN 115142788 A CN115142788 A CN 115142788A CN 202210779333 A CN202210779333 A CN 202210779333A CN 115142788 A CN115142788 A CN 115142788A
Authority
CN
China
Prior art keywords
control shaft
tool control
drill collar
support frame
turbine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210779333.3A
Other languages
Chinese (zh)
Inventor
彭勇
白儒林
孙龙欢
孙鹏
侯香港
赵飞鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xian Shiyou University
Original Assignee
Xian Shiyou University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xian Shiyou University filed Critical Xian Shiyou University
Priority to CN202210779333.3A priority Critical patent/CN115142788A/en
Publication of CN115142788A publication Critical patent/CN115142788A/en
Pending legal-status Critical Current

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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
    • E21B12/00—Accessories for drilling tools
    • 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
    • E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/0085—Adaptations of electric power generating means for use in boreholes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/02—Adaptations for drilling wells

Abstract

An automatic vertical drilling device based on the driving of a turbine generator comprises a drill collar, wherein an upper support frame is arranged above the inside of the drill collar, a first tool control shaft is arranged in the upper support frame, a lower support frame is arranged below the inside of the drill collar, a second tool control shaft is arranged in the lower support frame, and an electronic bin, a generator and a turbine which are connected with each other are sequentially arranged between the first tool control shaft and the second tool control shaft; when vertical drilling operation is carried out, a drilling pump at a wellhead pumps high-pressure drilling fluid into the underground through a drill column, when the drilling fluid scours a turbine, the turbine drives a generator rotor to rotate, so that a rotating magnetic field is generated, a winding wire outside a generator stator cuts a magnetic induction wire to generate induction current, the current is introduced into an electronic bin to work electronic equipment in the electronic bin, and when the generator generates the induction current, an electromagnetic torque is generated on a winding to control the movement of a second tool control shaft and correct the track of a well hole; the device has the advantages of simple structure, high reliability, low cost and good practicability.

Description

Automatic vertical drilling device based on turbine generator driving
Technical Field
The invention relates to an automatic vertical drilling tool, in particular to an automatic vertical drilling device based on the driving of a turbine generator.
Background
In the process of exploration and development of oil and gas fields, the stratum structure is complex, and an automatic vertical drilling tool is an electromechanical-hydraulic integrated intelligent closed-loop steering drilling device which can automatically and effectively control well deviation and ensure that a drill bit drills in the vertical direction all the time, can effectively improve the mechanical drilling speed, release the drilling pressure and reduce the drilling cost while ensuring the well bore quality, and is widely applied. The automatic vertical drilling tool can be divided into a mechanical type and an electric control type according to the structural form of a stable platform, the mechanical type tool is simple in structure, low in maintenance cost, low in sealing requirement on the tool, high in reliability, strong in high-temperature and high-pressure resistance, capable of bearing strong vibration and impact, but low in control precision, and poor in drilling track of the tool. The electric control type tool has high control precision, and the track of the drilled hole of the tool is good; but the sealing requirement to the instrument is higher, and high temperature and high pressure resistance ability is relatively poor, and the structure is complicated, and later maintenance cost is higher.
At present, an automatic vertical drilling tool adopting an electric control type stable platform is driven by two turbine generators with opposite rotation directions from top to bottom to generate two opposite electromagnetic moments. The turbine generators are the weakest part of the tool, and the reliability of the automatic vertical drilling tool using two turbine generators is low.
The patent application CN215443928U discloses a matching device for petroleum and natural gas drilling, in particular to an electromechanical integrated automatic vertical drilling tool. The turbine generator of the automatic vertical drilling tool is arranged in an installation shell, the turbine generator is sleeved on an upper supporting shaft through a bearing, a weight bias block is connected with a middle supporting shaft, and the middle supporting shaft is connected with a stepping motor; the vertical drilling tool generates power by using the turbine generator, then the power is supplied to the measurement and control component and the stepping motor, the upper disk valve is driven to rotate at a constant speed by the deflector block and the stepping motor, or the through hole of the upper disk valve is aligned to the high edge of the borehole, so that the drilling fluid pushes the corresponding pushing rib plate, the drill bit always drills in the vertical direction, the stability is good, but the driving structure is complex, and the use and maintenance cost is high.
Disclosure of Invention
In order to overcome the problems in the prior art, the invention aims to provide the automatic vertical drilling device based on the driving of the turbine generator, the reliability of the automatic vertical drilling tool can be improved by reducing the number of the generators, the driving structure is simple, the use cost and the replacement cost of the generators are reduced, the axial length of the automatic vertical drilling tool is favorably shortened, the efficiency requirement of vertical drilling operation is further met, and a single electromagnetic torque generated by a single turbine generator is utilized to perform one-way control on a tool control shaft.
In order to achieve the purpose, the invention adopts the technical scheme that:
an automatic vertical drilling device based on turbine generator driving comprises a drill collar 1, wherein an upper support frame 2 is arranged above the drill collar 1, the inner side of the upper support frame 2 is connected with a first tool control shaft 17, a lower support frame 6 is arranged below the drill collar 1, the inner side of the lower support frame 6 is connected with a second tool control shaft 12, an electronic bin 3, a generator 4 and a turbine 5 which are mutually connected are sequentially arranged between the first tool control shaft 17 and the second tool control shaft 12, the bottom end of the second tool control shaft 12 is connected with an upper disc valve 7, the upper disc valve 7 is in frictional contact connection with a lower disc valve 8, and the bottom of the lower disc valve 8 is rigidly connected with the inner bottom wall of the drill collar 1; the outer wall below the drill collar 1 is also provided with a sliding sleeve 9, and a pushing rib plate 10 is placed in the sliding sleeve 9.
The generator 4 comprises a stator 13 and a rotor 14 which are coaxially connected, the periphery of the stator 13 surrounds a winding 15, a plurality of permanent magnets 16 are embedded on the inner side of the rotor 14, a gap is reserved between the winding 15 and the permanent magnets 16, and the axial lengths of the winding 15 and the permanent magnets 16 are matched; the stator 13 and the rotor 14 rotate relative to each other, and an induction current is generated.
The top end of the stator 13 is rigidly connected with the bottom of the electronic cabin 3, and the bottom end of the stator 13 passes through the rotor 14 to be rigidly connected with the top end of the second tool control shaft 12.
And a slurry flow channel 11 is formed in the bottom end of the drill collar 1.
The upper disk valve 7 is provided with arc-shaped holes 18, the lower disk valve 8 is provided with communicating holes 19 which are matched with the arc-shaped holes 18 at equal angles and equal intervals, and the bottom ends of the communicating holes 19 are correspondingly connected with the slurry flow channel 11 in the bottom end of the drill collar 1.
Compared with the prior art, the invention has the following advantages:
the turbine generator works in a high-temperature and high-pressure severe environment and is washed by high-pressure drilling fluid containing solid-phase particles for a long time, so that the turbine of the turbine generator and a sealing element of the turbine generator are seriously abraded and need to be replaced irregularly. The single-turbine generator is arranged, so that the replacement quantity of the parts can be reduced, and the drilling cost is reduced.
The friction torque of the generator supporting bearing can influence the control precision of the tool face angle of the stable platform.
The turbine generator is the weakest link of the automatic vertical drilling tool, and the reliability of the tool is improved by reducing the number of the turbine generators.
The conventional automatic vertical drilling tool adopts two turbine generators to perform bidirectional control on a tool control shaft, while the invention adopts one turbine generator to perform unidirectional control on the tool control shaft (the length of one turbine generator is about 0.7 meter), thereby shortening the axial length of the automatic vertical drilling tool and improving the rigidity of the tool control shaft.
Drawings
FIG. 1 is a schematic view of the present invention.
Fig. 2 is a partially enlarged view of fig. 1.
Fig. 3 is a cross-sectional view of the generator 4 of the present invention.
Fig. 4 is a schematic view of the connection between the stator 13 and the electronic cabin 3 of the generator 4 of the present invention.
Fig. 5 is a schematic view of the connection between the stator 13 and the second tool control shaft 12 of the generator 4 according to the invention.
Fig. 6 is a schematic structural view of the upper disc valve 7 of the present invention.
Fig. 7 is a schematic structural view of the lower disk valve 8 of the present invention.
In the figure: 1. the device comprises a drill collar, 2, an upper support frame, 3, an electronic cabin, 4, a generator, 5, a turbine, 6, a lower support frame, 7, an upper disc valve, 8, a lower disc valve, 9, a sliding sleeve, 10, a pushing rib plate, 11, a slurry flow channel, 12 and a first tool control shaft; 13. a generator stator; 14. a generator rotor; 15. a winding; 16. a permanent magnet; 17. a second tool control shaft; 18. an arc-shaped hole; 19. and a communicating hole.
Detailed Description
The present invention is described in detail below with reference to the attached drawings.
Referring to fig. 1 and 2, an automatic vertical drilling device based on turbine generator driving comprises a drill collar 1, wherein an upper support frame 2 is arranged above the drill collar 1, a first tool control shaft 17 is connected to the inner side of the upper support frame 2, a lower support frame 6 is arranged below the drill collar 1, a second tool control shaft 12 is connected to the inner side of the lower support frame 6, an electronic bin 3, a generator 4 and a turbine 5 which are connected with each other are sequentially arranged between the first tool control shaft 17 and the second tool control shaft 12, the bottom end of the second tool control shaft 12 is connected with an upper disc valve 7, the upper disc valve 7 is connected with a lower disc valve 8 in a friction contact manner, and the bottom of the lower disc valve 8 is rigidly connected with the inner bottom wall of the drill collar 1; the outer wall below the drill collar 1 is also provided with a sliding sleeve 9, and a pushing rib plate 10 is placed in the sliding sleeve 9.
Referring to fig. 3 to 5, the generator 4 includes a stator 13 and a rotor 14 coaxially connected, a winding 15 is surrounded at the periphery of the stator 13, a plurality of permanent magnets 16 are embedded inside the rotor 14, a gap is left between the winding 15 and the permanent magnets 16, and the axial length of the winding 15 is matched with the axial length of the permanent magnets 16.
The stator 13 and the rotor 14 rotate relatively to generate induction current; the drilling fluid erodes the turbine 5, the turbine 5 transmits the power of the drilling fluid to the rotor 14 of the generator 4, and the rotor 14 of the generator 4 and the stator 13 rotate relatively to generate current for the electronic equipment in the electronic cabin 3 to work normally; the generator 4 can also generate an electromagnetic torque acting on the winding 15 in the process of generating current, the electromagnetic torque acts on the second tool control shaft 12 through the winding 15 of the generator 4, the rotation of the tool control shaft 12 is controlled in a one-way mode through controlling the electromagnetic torque generated by the generator 4, so that high-pressure mud is controlled to flow to the high edge of the well hole, the pushing rib plate 10 is pushed, the pushing rib plate 10 acts on the well wall, a pushing force pointing to the low edge of the well hole is provided for the drill bit, and further the deviation correction operation is achieved.
The top end of the stator 13 is rigidly connected with the bottom of the electronic cabin 3, and the bottom end of the stator 13 passes through the rotor 14 to be rigidly connected with the top end of the second tool control shaft 12.
Referring to fig. 1, a mud flow passage 11 is formed in the bottom end of the drill collar 1.
The upper disk valve 7 is provided with arc-shaped holes 18, the lower disk valve 8 is provided with communicating holes 19 which are matched with the arc-shaped holes 18 at equal angles and equal intervals, and the bottom ends of the communicating holes 19 are correspondingly connected with the slurry flow channel 11 in the bottom end of the drill collar 1.
The electrical and control connections of the present device are conventional and not within the scope of the claimed invention.
The working principle of the invention is as follows:
referring to fig. 1, when a vertical drilling operation is performed, a drilling pump at the wellhead pumps high-pressure drilling fluid into the well through a drill string, and when the drilling fluid flushes the turbine 5, the turbine 5 drives the generator rotor 14 to rotate, so that a rotating magnetic field is generated.
The generator stator 13 is provided with a winding, a winding wire cuts the magnetic induction wire to generate induction current, and the induction current is guided into the electronic bin 3 through the wire to supply electronic equipment in the electronic bin 3 to work normally.
The generator 4 generates an induction current and simultaneously generates an electromagnetic torque on the winding, and the torque acts on the second tool control shaft 12 through the generator stator 13 to control the magnitude of the electromagnetic torque so as to control the first tool control shaft, the second tool control shaft and the electronic cabin to rotate together.
When the borehole trajectory needs to be corrected, the size of the electromagnetic torque generated by the generator 4 is controlled, the second tool control shaft 12 enables the hole of the upper disc valve 7 to be aligned to the high side of the borehole, high-pressure drilling fluid flows through the holes of the upper disc valve 7 and the hole of the lower disc valve 8 and acts on the pushing rib plate 10, the pushing rib plate 10 on the high side of the borehole extends out to act on the borehole wall, a pushing force pointing to the low side of the borehole is provided for a drill bit, and correction is achieved through the pushing force. When the track of a well hole is good and the inclination needs to be stabilized, the size of the electromagnetic torque generated by the generator 4 is controlled, so that the second tool control shaft 12 is connected with the upper disc valve 7 to do uniform rotation motion, the arc-shaped holes 18 of the upper disc valve 7 are sequentially aligned to the communication holes 19 of the lower disc valve 8, high-pressure drilling fluid sequentially flows through the communication holes 19 of the lower disc valve 8 and sequentially acts on the pushing rib plate 10, the pushing rib plate 10 extends out to act on a well wall, and the inclination stabilizing function is realized by using the generated pushing force.
The above embodiments are merely illustrative and not restrictive, and it should be understood by those skilled in the art that the above embodiments may be modified and modified without departing from the scope of the technical idea of the present invention. These should also fall within the scope of the present invention, and do not affect the utility of the present invention.

Claims (5)

1. The utility model provides an automatic vertical drilling device based on turbine generator drive, includes drill collar (1), its characterized in that: an upper support frame (2) is arranged above the inside of the drill collar (1), a first tool control shaft (17) is connected to the inner side of the upper support frame (2), a lower support frame (6) is arranged below the inside of the drill collar (1), a second tool control shaft (12) is connected to the inner side of the lower support frame (6), an electronic bin (3), a generator (4) and a turbine (5) which are connected with each other are sequentially arranged between the first tool control shaft (17) and the second tool control shaft (12), the bottom end of the second tool control shaft (12) is connected with an upper disc valve (7), the upper disc valve (7) is connected with a lower disc valve (8) in a friction contact manner, and the bottom of the lower disc valve (8) is rigidly connected with the inner bottom wall of the drill collar (1); the outer wall below the drill collar (1) is also provided with a sliding sleeve (9), and a pushing rib plate (10) is arranged in the sliding sleeve (9).
2. The automatic vertical drilling device based on the turbine generator driving as claimed in claim 1, wherein: the generator (4) comprises a stator (13) and a rotor (14) which are coaxially connected, the periphery of the stator (13) surrounds a winding (15), a plurality of permanent magnets (16) are embedded in the inner side of the rotor (14), a gap is reserved between the winding (15) and the permanent magnets (16), and the axial lengths of the winding (15) and the permanent magnets (16) are matched; the stator (13) and the rotor (14) rotate relatively to each other, and an induction current is generated.
3. The automatic vertical drilling device based on the turbine generator driving as claimed in claim 2, wherein: the top end of the stator (13) is rigidly connected with the bottom of the electronic bin (3), and the bottom end of the stator (13) penetrates through the rotor (14) to be rigidly connected with the top end of the second tool control shaft (12).
4. The automatic vertical drilling device based on the turbine generator driving as claimed in claim 1, wherein: a slurry flow channel (11) is formed in the bottom end of the drill collar (1).
5. The automatic vertical drilling device based on the turbine generator driving according to the claim 1 and 4, characterized in that: the upper disk valve (7) is provided with an arc-shaped hole (18), the lower disk valve (8) is provided with communicating holes (19) matched with the arc-shaped hole (18) at equal angles and equal distances, and the bottom end of each communicating hole (19) is correspondingly connected with the slurry flow channel (11) in the drill collar 1.
CN202210779333.3A 2022-07-04 2022-07-04 Automatic vertical drilling device based on turbine generator driving Pending CN115142788A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210779333.3A CN115142788A (en) 2022-07-04 2022-07-04 Automatic vertical drilling device based on turbine generator driving

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210779333.3A CN115142788A (en) 2022-07-04 2022-07-04 Automatic vertical drilling device based on turbine generator driving

Publications (1)

Publication Number Publication Date
CN115142788A true CN115142788A (en) 2022-10-04

Family

ID=83410881

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210779333.3A Pending CN115142788A (en) 2022-07-04 2022-07-04 Automatic vertical drilling device based on turbine generator driving

Country Status (1)

Country Link
CN (1) CN115142788A (en)

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