A kind of outer tube for correcting full-eye drill pipe

Abstract

The utility model discloses an outer tube of a full-hole drill pipe for correcting deflection, which relates to the technical field of drilling tools, and comprises a tube body and two swing arms. A fixed seat is installed on the left side of the surface of the tube body, and a forward and reverse motor is installed below the rear end of the fixed seat. The output end of the forward and reverse motor passes through the fixed seat and is connected to a drive shaft, and the outside of the drive shaft is connected to a swing arm one. A transmission shaft one is penetrated at the other end of the swing arm one, and a driving gear is arranged outside the transmission shaft one. A driven gear is connected to the right side of the driving gear, and a transmission shaft two is penetrated in the middle of the driven gear. The outer tube of the full-hole drill pipe for correcting deflection presses the T-bar downward, so that the T-bar overcomes the elastic force of the spring and drives the connecting rod, the sealing gasket and the disc downward, thereby exposing the lower opening inside the lubricating oil tank, so that the lubricating oil is input into the ring frame from the output end of the lubricating oil tank, and the lubricating oil is coated on the surface of the tube body through the friction between the ring frame and the tube body, so as to achieve a protective effect.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling tools, in particular to a deflection-correcting full-eye drill rod outer tube. Background Art

[0002] Full-eye drilling tools are generally composed of several stabilizers with an outer diameter close to the drill bit diameter and some drill collars with larger outer diameters. According to the mechanical analysis results of the multi-stabilizer drilling tool combination using the longitudinal and transverse bending method, it can be seen that the gap between the stabilizer and the well wall has a great influence on the lateral force of the drill bit. The outer diameter of the stabilizer of the full-eye drilling tool should be as close to the wellbore size as possible, "full to ensure straightness". The full-eye drilling tool includes the drill bit, drill pipe, drill rod, drill bit transmission device, wellhead equipment and other auxiliary tools, among which the drill rod usually uses double-wall drill rod, also known as double-layer drill rod. It is composed of two layers of inner and outer drill rods (called inner tube and outer tube).

[0003] The outer surface of the drill pipe for correcting the deflection is lacking of relevant protection measures, and the service life of the drill pipe is easily affected by the long-term adhesion of small rock cuttings from the formation.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a deflection-correcting full-eye drill pipe outer tube is proposed. Utility Model Content

[0005] The utility model aims to provide a deflection-correcting full-eye drill pipe outer tube to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an outer tube of a deflection correction full-eye drill pipe, comprising a tube body and a swing arm 2, a fixed seat is installed on the left side of the surface of the tube body, and a forward and reverse motor is installed below the rear end of the fixed seat, the output end of the forward and reverse motor passes through the fixed seat and is connected to a driving shaft, and the outside of the driving shaft is connected to a swing arm 1, the other end of the swing arm 1 is penetrated by a transmission shaft 1, and a driving gear is arranged on the outside of the transmission shaft 1, a driven gear is connected to the right side of the driving gear, and a transmission shaft 2 is penetrated in the middle of the driven gear, the swing arm 2 is arranged on the outside of the transmission shaft 2, the other end of the swing arm 2 is connected to a movable seat through a rotating shaft, the rear ends of the transmission shaft 1 and the transmission shaft 2 are connected to a mounting seat, and a swing arm 3 is connected to the left side above the surface of the mounting seat through a rotating shaft, a swing arm 4 is connected to the right side above the surface of the mounting seat through a rotating shaft, and the other end of the swing arm 4 is connected to the movable seat through a rotating shaft.

[0007] Furthermore, the transmission shaft 1 and the transmission shaft 2 have opposite rotation directions, and the swing arm 1 is fixedly connected to the driving gear.

[0008] Furthermore, the swing arm 2 and the driven gear are fixedly connected, and the swing arm 2 and the swing arm 4 are parallel to each other.

[0009] Furthermore, one end of the swing arm three away from the mounting seat is rotatably connected to the fixing seat via a rotating shaft, and the swing arm three and the swing arm one are parallel to each other.

[0010] Furthermore, a lubrication assembly is provided on the top of the movable seat, and the lubrication assembly includes a lubrication oil tank and a T-shaped rod, and a T-shaped rod is provided through the top end of the lubrication oil tank.

[0011] Furthermore, the lubrication assembly also includes a connecting rod and a spring, and the bottom middle end of the T-shaped rod is connected to the connecting rod, and the outer sleeve of the connecting rod is provided with a spring.

[0012] Furthermore, the lubrication assembly also includes a sealing gasket and a disc, and the bottom end of the connecting rod is provided with a disc, and the sealing gasket is sleeved on the lower part of the outside of the connecting rod.

[0013] Furthermore, the lubrication assembly also includes a ring frame, and the ring frame is installed at the rear end of the movable seat, the tube body passes through the ring frame, and the output end of the lubricating oil tank passes through the top of the ring frame.

[0014] The utility model provides a deflection-correcting full-eye drill pipe outer tube, which has the following beneficial effects:

[0015] 1. In the utility model, since the ring frame is sleeved on the outside of the pipe body, the forward and reverse motors drive the driving shaft, the swing arm 1, the transmission shaft 1 and the driving gear to rotate in the working state, and the driving gear drives the driven gear to rotate the transmission shaft 2 and the swing arm 2, causing the movable seat to move in the horizontal direction, and the small rock debris adhered to the surface of the pipe body is scraped off by the ring frame to keep the surface clean.

[0016] 2. The utility model presses the T-bar downward, so that the T-bar overcomes the elastic force of the spring and drives the connecting rod, the sealing gasket and the disc to move downward, thereby exposing the lower opening inside the lubricating oil tank, so that the lubricating oil is input into the ring frame from the output end of the lubricating oil tank, and the lubricating oil is coated on the surface of the tube body through the friction between the ring frame and the tube body, thereby achieving a protective effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall front view structure of a deflection-correcting full-eye drill pipe outer tube of the utility model;

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of a lubricating oil tank of a full-eye drill pipe outer tube for correcting deflection according to the utility model;

[0019] Figure 3 The utility model is a rear view stereoscopic structural schematic diagram of a mounting base for a deflection-correcting full-eye drill rod outer tube.

[0020] In the figure: 1. tube body; 2. fixed seat; 3. forward and reverse motor; 4. driving shaft; 5. swing arm 1; 6. transmission shaft 1; 7. driving gear; 8. driven gear; 9. transmission shaft 2; 10. swing arm 2; 11. mounting seat; 12. swing arm 3; 13. swing arm 4; 14. movable seat; 15. lubrication assembly; 1501. lubricating oil tank; 1502. T-bar; 1503. connecting rod; 1504. spring; 1505. sealing gasket; 1506. disc; 1507. ring frame. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0022] like Figure 1 and Figure 3 As shown, a deflection correction full-eye drill pipe outer tube includes a tube body 1 and a swing arm 10. A fixed seat 2 is installed on the left side of the surface of the tube body 1, and a forward and reverse motor 3 is installed below the rear end of the fixed seat 2. The output end of the forward and reverse motor 3 passes through the fixed seat 2 and is connected to a drive shaft 4, and the outside of the drive shaft 4 is connected to a swing arm 5. The other end of the swing arm 5 is penetrated by a transmission shaft 6, and the outside of the transmission shaft 6 is provided with a driving gear 7, the right side of the driving gear 7 is connected to a driven gear 8, and the middle of the driven gear 8 is penetrated by a transmission shaft 9, the swing arm 10 is arranged on the outside of the transmission shaft 9, and the other end of the swing arm 10 is connected to a movable seat 14 through a rotating shaft. The rear ends of the transmission shaft 1 6 and the transmission shaft 2 9 are connected to a mounting seat 11, and a swing arm 3 12 is connected to the left side above the surface of the mounting seat 11 through a rotating shaft, and a swing arm 4 13 is connected to the right side above the surface of the mounting seat 11 through a rotating shaft, and the other end of the swing arm 4 13 is connected to a movable seat 14 through a rotating shaft, the transmission shaft 1 6 and the transmission shaft 2 9 rotate in opposite directions, the swing arm 1 5 is fixedly connected to the driving gear 7, the swing arm 2 10 is fixedly connected to the driven gear 8, and the swing arm 2 10 and the swing arm 4 13 are parallel to each other, and the end of the swing arm 3 12 away from the mounting seat 11 is rotatably connected to the fixed seat 2 through a rotating shaft, and the swing arm 3 12 and the swing arm 1 5 are parallel to each other.

[0023] The specific operation is as follows: since the ring frame 1507 is sleeved on the outside of the pipe body 1, the forward and reverse motors 3 drive the driving shaft 4, the swing arm 1 5, the transmission shaft 1 6, and the driving gear 7 to rotate in the working state, and the driving gear 7 drives the driven gear 8 to rotate the transmission shaft 2 9 and the swing arm 2 10, causing the movable seat 14 to move in the horizontal direction, and the small rock chips adhering to the surface of the pipe body 1 are scraped off by the ring frame 1507 to keep the surface clean of the pipe body 1.

[0024] like Figure 2As shown, a lubrication assembly 15 is provided on the top of the movable seat 14, and the lubrication assembly 15 includes a lubrication oil tank 1501 and a T-bar 1502, the top of the lubrication oil tank 1501 is penetrated by the T-bar 1502, the lubrication assembly 15 also includes a connecting rod 1503 and a spring 1504, and the bottom middle end of the T-bar 1502 is connected to the connecting rod 1503, the outer sleeve of the connecting rod 1503 is provided with a spring 1504, the lubrication assembly 15 also includes a sealing gasket 1505 and a disc 1506, and the bottom end of the connecting rod 1503 is provided with a disc 1506, and the outer lower sleeve of the connecting rod 1503 is provided with a sealing gasket 1505, the lubrication assembly 15 also includes a ring frame 1507, and the rear end of the movable seat 14 is installed with the ring frame 1507, the tube body 1 passes through the ring frame 1507, and the output end of the lubrication oil tank 1501 passes through the top of the ring frame 1507.

[0025] The specific operation is as follows: press the T-bar 1502 downward so that the T-bar 1502 overcomes the elastic force of the spring 1504 and drives the connecting rod 1503, the sealing gasket 1505 and the disc 1506 to move downward, thereby exposing the lower opening inside the lubricating oil tank 1501, so that the lubricating oil is input into the ring frame 1507 from the output end of the lubricating oil tank 1501, and the lubricating oil is coated on the surface of the tube body 1 through the friction between the ring frame 1507 and the tube body 1, thereby achieving a protective effect.

[0026] In summary, when the deflection-correcting full-eye drill pipe outer tube is used, the tube body 1 installed at the work station is first drilled into the rock formation along with the overall structure. When the drilling operation is completed and the tube body 1 is withdrawn from the rock formation, the surface of the tube body 1 will be adhered to the formation cuttings. Since the rotation directions of a pair of meshing gears must be opposite, the forward and reverse motors 3 on the fixed seat 2 are controlled to drive the driving shaft 4, the swing arm 1 5, the transmission shaft 1 6, and the driving gear 7 to rotate in the clockwise direction, and the driving gear 7 drives the driven gear 8 to drive the transmission shaft 2 9 and the swing arm 2 10 to rotate, which can cause the swing arm 3 12 and the swing arm 4 13 to rotate in the opposite direction, so that the ring frame 1507 is driven by the movable seat 14 to move horizontally to the right along the outside of the tube body 1 under the support of the swing arm 1 5, the swing arm 2 10, the swing arm 3 12, and the swing arm 4 13, thereby scraping off the small formation cuttings adhered to the surface of the tube body 1, so that the surface of the tube body 1 is restored to be clean;

[0027] When scraping is finished, the fixed seat 2 and the movable seat 14 are located at the two ends of the tube body 1 respectively. By pressing the T-bar 1502 to deform the spring 1504, the connecting rod 1503, the sealing gasket 1505 and the disc 1506 can be driven to move downward, so that the lubricating oil in the lubricating oil tank 1501 is input into the ring frame 1507 from the output end;

[0028] At this time, the forward and reverse motors 3 are started to drive the driving shaft 4, the swing arm 5, the transmission shaft 6, and the driving gear 7 to rotate in the counterclockwise direction, and the meshing transmission between the driving gear 7 and the driven gear 8 is used to realize the horizontal leftward displacement of the ring frame 1507 outside the tube body 1. During the displacement process, the ring frame 1507 rubs against the tube body 1 to apply lubricating oil to the surface of the tube body 1, which plays a protective role and prolongs the service life of the tube body 1.

[0029] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A drill pipe outer tube for correcting deflection, comprising a tube body (1) and a swing arm (10), characterized in that: A fixing seat (2) is installed on the left side of the surface of the tube body (1), and a forward and reverse motor (3) is installed below the rear end of the fixing seat (2). The output end of the forward and reverse motor (3) passes through the fixing seat (2) and is connected to a driving shaft (4), and the outside of the driving shaft (4) is connected to a swing arm (5). The other end of the swing arm (5) is penetrated by a transmission shaft (6), and the outside of the transmission shaft (6) is provided with a driving gear (7). The right side of the driving gear (7) is connected to a driven gear (8), and the middle part of the driven gear (8) is penetrated by a The transmission shaft (9) is a second transmission shaft, the second swing arm (10) is arranged outside the second transmission shaft (9), the other end of the second swing arm (10) is connected to a movable seat (14) via a rotating shaft, the rear ends of the first transmission shaft (6) and the second transmission shaft (9) are connected to a mounting seat (11), and the left side above the surface of the mounting seat (11) is connected to a swing arm (12) via a rotating shaft, the right side above the surface of the mounting seat (11) is connected to a swing arm (13) via a rotating shaft, and the other end of the swing arm (13) is connected to the movable seat (14) via a rotating shaft.

2. The outer tube of the full-eye drill pipe for correcting deflection according to claim 1 is characterized in that: The transmission shaft 1 (6) and the transmission shaft 2 (9) rotate in opposite directions, and the swing arm 1 (5) and the driving gear (7) are fixedly connected.

3. The outer tube of the full-eye drill pipe for correcting deflection according to claim 1 is characterized in that: The second swing arm (10) and the driven gear (8) are fixedly connected, and the second swing arm (10) and the fourth swing arm (13) are parallel to each other.

4. The deflection correction full-eye drill pipe outer tube according to claim 1, characterized in that: One end of the swing arm three (12) away from the mounting seat (11) is rotatably connected to the fixing seat (2) via a rotating shaft, and the swing arm three (12) and the swing arm one (5) are parallel to each other.

5. The deflection correction full-eye drill pipe outer tube according to claim 1, characterized in that: A lubrication assembly (15) is arranged on the top of the movable seat (14), and the lubrication assembly (15) comprises a lubrication oil tank (1501) and a T-shaped rod (1502), and the top end of the lubrication oil tank (1501) is penetrated by the T-shaped rod (1502).

6. The deflection correction full-eye drill pipe outer tube according to claim 5, characterized in that: The lubrication assembly (15) further comprises a connecting rod (1503) and a spring (1504), wherein the middle end of the bottom of the T-shaped rod (1502) is connected to the connecting rod (1503), and the spring (1504) is sleeved on the outside of the connecting rod (1503).

7. The deflection correction full-eye drill pipe outer tube according to claim 6, characterized in that: The lubrication assembly (15) further comprises a sealing gasket (1505) and a disc (1506), and the disc (1506) is arranged at the bottom end of the connecting rod (1503), and the sealing gasket (1505) is sleeved at the lower part of the outside of the connecting rod (1503).

8. The deflection correction full-eye drill pipe outer tube according to claim 5, characterized in that: The lubrication assembly (15) further comprises a ring frame (1507), and the rear end of the movable seat (14) is provided with the ring frame (1507), the tube body (1) passes through the ring frame (1507), and the output end of the lubricating oil tank (1501) passes through the top of the ring frame (1507).

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