Buckling device of inclined and vertical well drilling machine

Abstract

The utility model relates to the technical field of inclined and vertical well drilling machines, and discloses a buckling device of an inclined and vertical well drilling machine, which comprises a fixing ring, the bottom of the fixing ring is fixedly connected with a connecting cylinder, the bottom of the connecting cylinder is fixedly connected with a hanging ring, the edge of the hanging ring is hinged with two buckling plates, the buckling plates are arranged to be curved plates, and the buckling plates are arranged on the fixing ring. A pull rod is arranged on the inner wall of the buckle plate, the rod wall of the pull rod extends to the position above the fixing ring and is fixedly connected with a transmission ring, and a motor is fixedly connected to the inner wall of the hanging ring. The threaded cylinder rotates, threads are arranged in the threaded cylinder to drive the threaded rod to move, the movable ring moves the push-pull pull rod and the guide block to move, and the buckle plate rotates along the hinge point so that the buckle plate can be arranged on a sleeve at a well mouth in a buckled mode. A drill rod in a subsequent inclined vertical well drilling machine penetrates through the guide cylinder, so that the drill rod can be arranged in the center of the sleeve when rotating, and the drill rod is prevented from deviating during rotation and affecting the subsequent drilling effect.

Description

Technical Field

[0001] The utility model relates to the technical field of inclined and vertical well drilling rigs, in particular to a buckling device for inclined and vertical well drilling rigs. Background Art

[0002] An inclined vertical well drilling rig is a device used to drill inclined vertical wells, usually in oil fields, natural gas fields, geothermal wells and other fields. The inclined vertical well drilling rig can drill the wellbore to the underground target position when the direction changes on the surface, thereby realizing the exploitation of the target oil or gas layer. This drilling rig is usually composed of components such as drill pipe, rotary table, hydraulic system and control system, and can perform efficient drilling operations under complex geological conditions.

[0003] In the prior art, during the drilling process of an inclined vertical well drilling rig, in order to improve the stability of the wellbore and the well wall, it is necessary to install casing at the wellbore to protect the well wall. During the processing of the inclined vertical well drilling rig, if the drill pipe and the sleeve of the inclined vertical well drilling rig are no longer on the same center line, it will not only affect the subsequent drilling quality, but also if the drill pipe is tilted, it will damage the sleeve, posing a great safety hazard. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that during the processing of the inclined and vertical well drilling rig, if the drill pipe and the sleeve of the inclined and vertical well drilling rig are no longer on the same center line, not only will the subsequent drilling quality be affected, but if the drill pipe is tilted, the sleeve will be damaged, which poses a great safety hazard. A buckling device for an inclined and vertical well drilling rig is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A buckling device for an inclined and vertical well drilling rig comprises a fixing ring, a connecting tube fixedly connected to the bottom of the fixing ring, a lifting ring fixedly connected to the bottom of the connecting tube, two buckle plates hingedly provided at the edge of the lifting ring, the buckle plates are configured as curved plates, a pull rod is provided on the inner wall of the buckle plate, the rod wall of the pull rod extends to the top of the fixing ring and is fixedly connected to a transmission ring, a motor is fixedly connected to the inner wall of the lifting ring, a threaded rod is fixedly connected to the bottom of the transmission ring, the inner wall of the fixing ring is rotatably connected to a threaded tube, the rod wall of the threaded rod is threadedly connected to the inner wall of the threaded tube, and a transmission mechanism is provided on the tube wall of the threaded tube.

[0007] Preferably, a connecting rod is fixedly connected to the inner wall of the fixing ring, and a guide cylinder is fixedly connected to one end of the connecting rod away from the fixing ring.

[0008] Preferably, a connecting frame is fixedly connected to the top end of the fixing ring.

[0009] Preferably, a guiding groove is formed in the inner wall of the buckle plate. A guiding block is slidably arranged on the inner wall of the guiding groove of the buckle plate, and the bottom end of the pull rod is hinged to the upper surface of the guiding block.

[0010] Preferably, the transmission mechanism includes a first gear, a small gear ring, a large gear ring and a second gear. The small gear ring is fixedly connected to the large gear ring and is movably sleeved on the barrel wall of the guiding cylinder. The first gear is fixedly connected to the output shaft of the motor. The first gear is meshed with the small gear ring, and the second gear is fixedly sleeved on the barrel wall of the threaded barrel and is meshed with the large gear ring.

[0011] Preferably, an annular sliding groove is formed in the barrel wall of the guiding cylinder. A sliding ring is slidably arranged on the inner wall of the annular sliding groove of the guiding cylinder, and the side wall of the sliding ring is fixedly connected to the inner wall of the large gear ring.

[0012] Compared with the prior art, the present utility model provides a make-up device for a deviated and vertical well drilling rig, which has the following beneficial effects:

[0013] 1. For the make-up device of the deviated and vertical well drilling rig, by rotating the threaded barrel, the internal thread of the threaded barrel drives the threaded rod to move. The moving ring moves to push and pull the pull rod and the guiding block to move, so that the buckle plate can rotate along the hinge point to tightly buckle the sleeve arranged at the wellhead. Subsequently, the drill pipe inside the deviated and vertical well drilling rig passes through the guiding cylinder, so that when the drill pipe rotates, the drill pipe is arranged at the center of the sleeve, preventing the drill pipe from rotating and shifting, which affects the subsequent drilling effect.

[0014] 2. For the make-up device of the deviated and vertical well drilling rig, the rotation of the output shaft of the motor can drive the first gear to rotate. The rotation of the first gear can drive the small gear ring to rotate. The rotation of the small gear ring drives the large gear ring to rotate. At the same time, the rotation of the small gear ring driving the large gear ring is a speed-reducing transmission, which is more labor-saving. The large gear ring drives the second gear to rotate, which can drive the threaded barrel to rotate.

[0015] 3. For the make-up device of the deviated and vertical well drilling rig, the sliding of the sliding ring along the inner wall of the annular sliding groove can improve the rotation stability of the large gear ring and the small gear ring on the barrel wall of the guiding cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a make-up device for a deviated and vertical well drilling rig proposed by the present utility model;

[0017] Figure 2 is Figure 1 a schematic enlarged view of a partial A part in

[0018] Figure 3 is Figure 1 a three-dimensional view of the structure of the buckle plate in

[0019] In the figure: 1 fixing ring, 2 connecting rod, 3 guide cylinder, 4 connecting frame, 5 connecting cylinder, 6 lifting ring, 7 buckle plate, 8 guide block, 9 pull rod, 10 transmission ring, 11 threaded rod, 12 threaded cylinder, 13 motor, 14 first gear, 15 small gear ring, 16 large gear ring, 16 second gear 17, slip ring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figures 1-3 A buckling device for an inclined and vertical well drilling rig comprises a fixing ring 1, a connecting tube 5 is fixedly connected to the bottom of the fixing ring 1, a lifting ring 6 is fixedly connected to the bottom of the connecting tube 5, two buckle plates 7 are hingedly provided at the edge of the lifting ring 6, the buckle plates 7 are arranged as curved plates, a pull rod 9 is provided on the inner wall of the buckle plate 7, the rod wall of the pull rod 9 extends to the top of the fixing ring 1 and is fixedly connected to a transmission ring 10, a motor 13 is fixedly connected to the inner wall of the lifting ring 6, a threaded rod 11 is fixedly connected to the bottom of the transmission ring 10, a threaded tube 12 is rotatably connected to the inner wall of the fixing ring 1, and the rod wall of the threaded rod 11 is threadedly connected to the inner wall of the threaded tube 12.

[0022] A connecting rod 2 is fixedly connected to the inner wall of the fixing ring 1, a guide cylinder 3 is fixedly connected to the end of the connecting rod 2 facing away from the fixing ring 1, a connecting frame 4 is fixedly connected to the top of the fixing ring 1, a guide groove is provided on the inner wall of the buckle plate 7, a guide block 8 is slidably provided on the inner wall of the buckle plate 7 located in the guide groove, and the bottom end rod wall of the pull rod 9 is hingedly set on the upper surface of the guide block 8.

[0023] A transmission mechanism is provided on the wall of the threaded barrel 12, and the transmission mechanism includes a first gear 14, a small gear ring 15, a large gear ring 16 and a second gear 17. The small gear ring 15 is fixedly connected to the large gear ring 16 and movably sleeved on the wall of the guide barrel 3. The first gear 14 is fixedly connected to the output shaft of the motor 13, and the first gear 14 is meshed with the small gear ring 15. The second gear 17 is fixedly sleeved on the wall of the threaded barrel 12 and meshed with the large gear ring 16.

[0024] In use, the connecting frame 4 can fixedly install the device on the inclined straight well drilling rig. The rotation of the output shaft of the motor 13 can drive the first gear 14 to rotate. The rotation of the first gear 14 can drive the small gear ring 15 to rotate. The rotation of the small gear ring 15 drives the large gear ring 16 to rotate. At the same time, the rotation of the small gear ring 15 driving the large gear ring 16 is a speed-reducing transmission, which is more labor-saving. The rotation of the large gear ring 16 drives the second gear 14 to rotate, which can drive the threaded cylinder 12 to rotate. The inside of the threaded cylinder 12 is provided with threads that can drive the threaded rod 11 to move, driving the moving ring 10 to move. The movement of the moving ring 10 can push and pull the pull rod 9 and the guide block 8 to move, so that the buckle plate 7 rotates along the hinge point, and the buckle plate 7 can be fastened to the sleeve arranged at the wellhead. Subsequently, the drill pipe inside the inclined straight well drilling rig passes through the guide cylinder 3, and when the drill pipe rotates, the drill pipe is arranged at the center of the sleeve, preventing the drill pipe from rotating and shifting, which affects the subsequent drilling effect.

[0025] In order to improve the stability of the rotation of the large gear ring 16 and the small gear ring 15 on the wall of the guiding cylinder 3, as Figures 1-3 shown, an annular sliding groove is formed on the wall of the guiding cylinder 3. A sliding ring 18 is slidably arranged on the inner wall of the annular sliding groove of the guiding cylinder 3, and the side wall of the sliding ring 18 is fixedly connected to the inner wall of the large gear ring 16.

[0026] The sliding of the sliding ring 18 along the inner wall of the annular sliding groove can improve the stability of the rotation of the large gear ring 16 and the small gear ring 15 on the wall of the guiding cylinder 3.

[0027] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A bend-up device for a vertical well drilling rig, comprising a fixing ring (1), characterized in that: The bottom of the fixing ring (1) is fixedly connected to a connecting tube (5), the bottom of the connecting tube (5) is fixedly connected to a lifting ring (6), two buckle plates (7) are hingedly provided at the edge of the lifting ring (6), the buckle plates (7) are configured as curved plates, the inner wall of the buckle plates (7) is provided with a pull rod (9), the rod wall of the pull rod (9) extends to the top of the fixing ring (1) and is fixedly connected to a transmission ring (10), the inner wall of the lifting ring (6) is fixedly connected to a motor (13), the bottom of the transmission ring (10) is fixedly connected to a threaded rod (11), the inner wall of the fixing ring (1) is rotatably connected to a threaded tube (12), the rod wall of the threaded rod (11) is threadedly connected to the inner wall of the threaded tube (12), and a transmission mechanism is provided on the tube wall of the threaded tube (12).

2. The bend-up device for a vertical well drilling rig according to claim 1, characterized in that: A connecting rod (2) is fixedly connected to the inner wall of the fixing ring (1), and a guide cylinder (3) is fixedly connected to one end of the connecting rod (2) facing away from the fixing ring (1).

3. The bend-up device for a vertical well drilling rig according to claim 1, characterized in that: The top end of the fixing ring (1) is fixedly connected to a connecting frame (4).

4. The bend-up device for a vertical well drilling rig according to claim 1, characterized in that: A guide groove is provided on the inner wall of the buckle plate (7), a guide block (8) is slidably provided on the inner wall of the buckle plate (7) located on the guide groove, and the bottom end wall of the pull rod (9) is hingedly arranged on the upper surface of the guide block (8).

5. The bend-up device for a vertical well drilling rig according to claim 1, characterized in that: The transmission mechanism comprises a first gear (14), a small gear ring (15), a large gear ring (16) and a second gear (17); the small gear ring (15) is fixedly connected to the large gear ring (16) and movably sleeved on the wall of the guide cylinder (3); the first gear (14) is fixedly connected to the output shaft of the motor (13); the first gear (14) is meshed with the small gear ring (15); and the second gear (17) is fixedly sleeved on the wall of the threaded cylinder (12) and meshed with the large gear ring (16).

6. The bend-up device for a vertical well drilling rig according to claim 2, characterized in that: An annular sliding groove is provided on the wall of the guide cylinder (3), a slip ring (18) is slidably provided on the inner wall of the guide cylinder (3) located in the annular sliding groove, and a side wall of the slip ring (18) is fixedly connected to the inner wall of the large gear ring (16).

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