CN213838565U

CN213838565U - Windowing rock stratum drilling integrated casing windowing device

Info

Publication number: CN213838565U
Application number: CN202023059682.3U
Authority: CN
Inventors: 高文革; 王俭; 贺国宇
Original assignee: DAQING XINZHIHE TECHNOLOGY CO LTD
Current assignee: DAQING XINZHIHE TECHNOLOGY CO LTD
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-07-30
Anticipated expiration: 2030-12-17

Abstract

The utility model provides an integrative casing pipe ware of windowing is crept into to rock stratum. Relates to the technical field of oil field downhole tools. The liquid inlet hole is communicated with a transverse hole in the body, a left motor blade is arranged in an inner cavity on the left side of the transverse hole, a shaft is arranged on the left side of the cylindrical head and extends out of the body to be fixedly connected with a window opening drill bit, and a left liquid outlet hole is formed in the body and communicated with the through hole on the lower portion on the left side of the left motor blade. The utility model discloses following beneficial effect has: the drilling machine can be used for windowing the underground casing in the horizontal direction in a shaft by using the windowing drill bit, can drill holes in the rock stratum along the windowing hole without pulling down, is strong in operation adaptability, high in reliability, high in efficiency and energy-saving, can finish windowing drilling and rock stratum drilling by using the rock stratum drill bit in the radial direction, does not need to pull down the drilling for many times, effectively shortens the drilling period, saves the drilling cost, lightens the labor intensity of workers, improves the construction effect, and has a better application prospect.

Description

Windowing rock stratum drilling integrated casing windowing device

The technical field is as follows:

the utility model belongs to the technical field of the oil field instrument technique in the pit and specifically relates to integrative casing pipe ware of windowing is crept into to rock stratum.

Background art:

currently, there are two methods of windowing commonly used in oil fields: the method comprises the steps of windowing by a whipstock and windowing by section milling, wherein if a sidetrack stratum is hard, the well cementation quality is poor, the underground condition of an old well is complex, the inclination angle of the well is large, a casing and a casing centralizer are not easy to be milled in sections, and when the selectable range of windowing points is limited, the windowing mode of the whipstock is generally adopted, otherwise, the windowing mode of the section milling type is generally selected; the turning curvature radius of the two is far larger than the diameter of the downhole tool, and the steering in the horizontal direction in the shaft can not be carried out, so that the operation efficiency and the operation precision of radial drilling are influenced.

The utility model has the following contents:

in order to solve the problem, the utility model provides an integrative casing tube ware of windowing is crept into to the rock stratum of windowing.

The technical scheme of the utility model is that: the windowing rock stratum drilling integrated casing tube window opener comprises a body, wherein an upper connector is arranged on the upper portion of the body, the upper connector is in a conventional oil pipe female thread buckle type, a liquid inlet hole is formed in the lower portion of the upper connector and communicated with a transverse hole in the body, a left motor blade is arranged in an inner cavity in the left side of the transverse hole, a section of cylindrical head is arranged on the left side of the left motor blade and is in clearance fit connection with the transverse hole through a sealing ring, a shaft is arranged on the left side of the cylindrical head and extends out of the body to be fixedly connected with a windowing drill bit, a spring is arranged between the left side of the cylindrical head and the end face of the transverse hole, and a left liquid outlet hole is formed in the lower portion of the left side of the left motor blade and communicated with a through hole which transversely penetrates through the body;

the inner cavity of the right side of the transverse hole is internally provided with a right motor blade, the right side of the right motor blade is a section of cylindrical head which is in clearance fit connection with the transverse hole through a sealing ring, the right side of the cylindrical head is provided with a rock layer drill bit fixedly connected with the outside of the body through a shaft, a spring is arranged between the right side of the cylindrical head and the end surface of the transverse hole, and the lower part of the right side of the right motor blade is provided with a right liquid outlet hole communicated with a through hole transversely penetrating through the body.

And a partition plate is fixedly and hermetically connected with the transverse hole on the left side of the right motor blade, and a rupture disk fixedly and hermetically connected with the central hole of the partition plate is arranged on the central hole of the partition plate.

The upper part of the left liquid outlet hole is provided with a step hole, the upper part of the step hole is provided with a step sleeve, the step sleeve is positioned, the left motor blade is provided with a ring groove I, the lower part of the step sleeve is provided with a seat plug which is in clearance fit connection with the step hole through a sealing ring, the excircle of the seat plug is provided with a snap spring, the upper part of the seat plug is provided with a ring groove II, the seat plug is provided with an inclined hole, the upper part of the inclined hole is positioned at the edge of the plane of the seat plug, the lower part of the inclined hole is positioned at the center of the lower plane of the seat plug, and the center of the plane of the seat plug is provided with a rubber plug.

The lower side of the through hole is provided with a disc, the outer side of the disc is provided with a sealing ring, and the size of the disc is in clearance fit with the sleeve of the window.

The utility model discloses following beneficial effect has: the drilling machine can be used for windowing the underground casing in the horizontal direction in a shaft by using the windowing drill bit, can drill holes in the rock stratum along the windowing hole without pulling down, is strong in operation adaptability, high in reliability, high in efficiency and energy-saving, can finish windowing drilling and rock stratum drilling by using the rock stratum drill bit in the radial direction, does not need to pull down the drilling for many times, effectively shortens the drilling period, saves the drilling cost, lightens the labor intensity of workers, improves the construction effect, and has a better application prospect.

Description of the drawings:

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is an enlarged view of a portion a of fig. 1.

In the figure, 1-body, 2-upper joint, 3-left motor blade, 4-right motor blade, 5-windowing drill bit, 6-rock drill bit, 7-spring, 8-cylinder head, 9-partition plate, 10-rupture disk, 11-liquid inlet hole, 12-right liquid outlet hole, 13-through hole, 14-disk, 15-ring groove I, 16-step sleeve, 17-ring groove II, 18-snap spring, 19-seat plug, 20-left liquid outlet hole, 21-inclined hole and 22-rubber plug.

The specific implementation mode is as follows:

the present invention will be further explained with reference to the accompanying drawings:

as shown in a combined figure 2 of fig. 1, the windowing rock stratum drilling integrated casing window opener comprises a body 1, an upper connector 2 is arranged at the upper part of the body 1, the upper connector 2 is a conventional oil pipe female thread buckle type connecting pipe column, a liquid inlet hole 11 is formed in the lower part of the upper connector 2 and is communicated with a transverse hole in the body 1, a left motor blade 3 is arranged in an inner cavity in the left side of the transverse hole, a section of cylindrical head 8 is arranged on the left side of the left motor blade 3 and is in clearance fit connection with the transverse hole through a sealing ring, a shaft is arranged on the left side of the cylindrical head 8 and extends out of the body 1 to be fixedly connected with a window opening drill bit 5, a spring 7 is arranged between the left side of the cylindrical head 8 and the end face of the transverse hole, a left liquid outlet hole 20 is formed in the lower part of the left side of the left motor blade 3, and is communicated with a through hole 13 transversely penetrating through the body 1;

the inner cavity of the right side of the transverse hole is internally provided with a right motor blade 4, the right side of the right motor blade 4 is a section of cylindrical head 8 which is in clearance fit connection with the transverse hole through a sealing ring, the right side of the cylindrical head 8 is provided with a shaft which extends out of the body 1 and is fixedly connected with a rock layer drill bit 6, a spring 7 is arranged between the right side of the cylindrical head 8 and the end surface of the transverse hole, and the lower part of the right side of the right motor blade 4 is provided with a right liquid outlet hole 12 which is communicated with a through hole 13 which transversely runs through the body 1.

And a partition plate 9 is fixedly and hermetically connected on a transverse hole on the left side of the right motor blade 4, and a rupture disk 10 is fixedly and hermetically connected on a central hole of the partition plate 9.

The upper portion of the left liquid outlet hole 20 is provided with a step hole, the upper portion of the step hole is provided with a step sleeve 16, the step sleeve 16 is located, the left motor blade 3 is provided with a ring groove I15, the lower portion of the step sleeve 16 is provided with a seat plug 19 which is in clearance fit connection with the step hole through a sealing ring, a snap spring 18 is arranged on the excircle of the seat plug 19, the upper portion of the seat plug 19 is provided with a ring groove II17, the seat plug 19 is provided with an inclined hole 21, the upper portion of the inclined hole 21 is located on the upper plane edge of the seat plug 19, the lower portion is located at the central position of the lower plane of the seat plug 19, and the central position of the upper plane of the seat plug 19 is provided with a rubber plug 22.

A disc 14 is arranged at the lower side of the through hole 13, a sealing ring is arranged at the outer side of the disc 14, and the size of the disc 14 is in clearance fit with the sleeve of the window.

In actual operation, the windowing rock stratum drilling integrated casing tube window opener is connected to the bottom of a pipe column and is placed to a window opening position, high-pressure liquid is introduced into the pipe column, the high-pressure liquid flows into a transverse hole of a body 1 through a liquid inlet hole 11, a partition plate 9 is arranged on the right side of the transverse hole, the high-pressure liquid only can enter a transverse hole left motor blade 3 and drive the left motor blade 3 to rotate, a cylindrical head 8 seals the left side of the left motor blade 3, liquid pressure simultaneously presses the left motor blade 3 to move leftwards to generate a rotary drilling function, the left motor blade 3 drives a window opening drill bit 5 to drill in a rotary mode, windows are formed in the casing wall, the liquid flowing through the left motor blade 3 flows out from a step sleeve 16, an inclined hole 21 of a seat plug 19 and a left liquid outlet hole 20, and is blocked by a disc 14 after passing through a through hole 13 and cannot flow downwards, the liquid washes the window opening drill bit 5 and flows out from the bottom to a well head, and simultaneously the drilled iron cuttings are brought out to the well head, and (5) ending the windowing, stopping injecting the high-pressure liquid and reducing the pressure, and returning the left motor blade 3 to the original position under the action of the spring 7.

After the sleeve pipe windowing is finished, high-pressure liquid is reversely injected from the sleeve pipe, the high-pressure liquid flows into the through hole 13 from the sleeve pipe, the left liquid outlet hole 20 is formed, the liquid pushes the seat, the seat plug 19 moves upwards, the seat plug 19 abuts against the step sleeve 16, the seat plug 19 is fixed when the clamp spring 18 moves into the ring groove II17, the step sleeve 16 moves upwards and is clamped in the ring groove I15 of the left motor blade 3, the left motor blade 3 is transversely fixed, the inner hole of the step sleeve 16 is blocked by the rubber plug 22 on the upper portion of the seat plug 19, and the pipeline is closed.

Rotate the tubular column 180, rock stratum drill bit 6 aims at the hole that the sleeve pipe had opened the window, injects high-pressure liquid into the tubular column once more, and high-pressure liquid can not get into horizontal hole left side, suppresses the pressure and explodes rupture disc 10, and horizontal hole right side cavity is broken through, and right motor blade 4 drives the rotatory drilling of rock stratum drill bit 6, to rock stratum drilling, goes out the liquid washing drill bit that liquid hole 12 flowed out from the right side, takes out the rock cutting to the well head.

Claims

1. The utility model provides an integrative casing pipe ware of windowing rock stratum drilling, includes body (1), its characterized in that: the upper part of the body (1) is provided with an upper joint (2), the upper joint (2) is of a conventional oil pipe female thread buckle type, the lower part of the upper joint (2) is provided with a liquid inlet hole (11) communicated with a transverse hole on the body (1), a left motor blade (3) is arranged in an inner cavity at the left side of the transverse hole, the left side of the left motor blade (3) is provided with a section of cylindrical head (8) which is in clearance fit connection with the transverse hole through a sealing ring, the left side of the cylindrical head (8) is provided with a shaft extending out of the body (1) and fixedly connected with a windowing drill bit (5), a spring (7) is arranged between the left side of the cylindrical head (8) and the end surface of the transverse hole, the lower part at the left side of the left motor blade (3), and the body (1) is provided with a left liquid outlet hole (20) communicated with a through hole (13) transversely penetrating through the body (1);

be equipped with right motor blade (4) in the horizontal hole right side inner chamber, right motor blade (4) right side is that one section cylinder head (8) are connected with horizontal hole clearance fit through the sealing washer, cylinder head (8) right side has axle to stretch out fixed connection stratum drill bit (6) outside body (1), be equipped with spring (7) between this cylinder head (8) right side and the horizontal hole terminal surface, right motor blade (4) right side lower part, it has right side to go out liquid hole (12) and transversely to link up through-hole (13) intercommunication of body (1) to open on body (1).

2. The fenestration rock formation drilling integrated casing fenestration device of claim 1, wherein: and a partition plate (9) is fixedly and hermetically connected on the transverse hole on the left side of the right motor blade (4), and a rupture disc (10) which is fixedly and hermetically connected is arranged on the central hole of the partition plate (9).

3. The fenestration rock formation drilling integrated casing fenestration device of claim 1, wherein: a section of step hole is opened on left side play liquid hole (20) upper portion, step hole upper portion is equipped with step cover (16), step cover (16) position, it has annular I (15) to open on left side motor blade (3), step cover (16) lower part is equipped with seat stopper (19) and is connected through sealing washer clearance fit with the step hole, be equipped with jump ring (18) on seat stopper (19) excircle, seat stopper (19) upper portion, it has annular II (17) to open on the step hole, it has inclined hole (21) to open on seat stopper (19), inclined hole (21) upper portion is located seat stopper (19) upper flat edge, the lower part is located seat stopper (19) lower planar central point and puts, seat stopper (19) upper flat central point puts and is equipped with rubber buffer (22).

4. The fenestration rock formation drilling integrated casing fenestration device of claim 1, wherein: a disc (14) is arranged on the lower side of the through hole (13), a sealing ring is arranged on the outer side of the disc (14), and the size of the disc (14) is in clearance fit with the sleeve of the window.