Mounting and dismounting tool for petroleum drilling connector

Abstract

The utility model relates to a mounting and dismounting tool for a petroleum drilling connector, and relates to the technical field of petroleum drilling operation tools. The mounting and dismounting tool comprises: a base; the supporting rotating disc can be manually operated and is rotatably mounted on the base, the supporting rotating disc is higher than the base, and a positioning column is arranged on the upper surface of the supporting rotating disc in a protruding mode and used for being inserted into a well drilling connector; and the anti-inclination device is installed on the base and comprises a guardrail higher than the supporting rotary disc, and the inner diameter of the guardrail is larger than the outer diameter of the well drilling connector. The rotating speed and the rotating angle of the well drilling connector can be accurately controlled in a manual rotating mode, and the situation that screwing is too tight or too loose during mounting and dismounting is avoided. And moreover, a positioning column and an anti-toppling device are arranged, so that the drilling connector can be prevented from inclining and falling off in the using process, and the safety of operators is guaranteed.

Description

Technical Field

[0001] The utility model relates to an oil drilling operation tool, in particular to an installation and disassembly tool for an oil drilling joint. Background Art

[0002] In the process of oil drilling, sometimes a bottom hole assembly (BHA) is used. This assembly can be composed of drill collars, stabilizers, reamer, shock absorber, hole opener and other joints as well as drill bit joints and drill bits. These components are connected to each other by threads to form a complete drilling tool.

[0003] Since each joint is generally heavy, it is difficult to manually thread and connect adjacent joints. In the related art, one of the two connected parts is often hoisted and the other part is placed on a motor turntable or a hydraulic turntable. The two parts are driven by a motor or a hydraulic system to rotate relative to each other, thereby achieving the installation or removal of the drilling joint.

[0004] However, in actual use, the rotation angle error of the motor turntable or the hydraulic turntable is large, making it difficult to rotate the drilling joint to a suitable angle. During installation or disassembly, the joint is often over-tightened or over-loosened, which is very inconvenient to use. Utility Model Content

[0005] The utility model provides an installation and disassembly tool for a petroleum drilling joint, which is used to solve the problems of low installation and disassembly precision and inconvenient operation.

[0006] The utility model provides an installation and disassembly tool for oil drilling joints, which comprises: a base; a manually-operated support turntable, which is rotatably installed on the base, the support turntable is higher than the base, a positioning column is convexly provided on the upper surface of the support turntable, and the positioning column is used to insert the drilling joint; and an anti-tilt device, which is installed on the base, the anti-tilt device comprises a guardrail higher than the support turntable, and the inner diameter of the guardrail is larger than the outer diameter of the drilling joint.

[0007] In one embodiment, the vertical axis of the positioning column coincides with the vertical rotation centerline of the supporting turntable.

[0008] In one embodiment, the supporting turntable is rotatably connected to the base via a bearing.

[0009] In one embodiment, the supporting turntable includes a coaxially arranged disk body and a rotating shaft, the outer diameter of the rotating shaft is smaller than the outer diameter of the disk body, the rotating shaft is located at the bottom of the disk body, and the positioning column is arranged on the top surface of the disk body; the base is installed with a bearing; the rotating shaft and the base are rotatably connected through the bearing.

[0010] In one embodiment, the anti-tilt device further includes a plurality of support rods, the bottom ends of the support rods are mounted on the base, the guardrails are mounted on the support rods, the support rods are spaced apart, and an operating gap is formed between two adjacent support rods, through which a human hand can pass.

[0011] In one embodiment, at least three support rods are mounted on the base, and the support rods are evenly spaced around the axis of the supporting turntable.

[0012] In one embodiment, a fixing anchor is disposed on the base.

[0013] In one embodiment, a plurality of fixing anchors are disposed on the base, and the fixing anchors are spaced apart around the vertical axis of the base.

[0014] In one embodiment, the height difference between the guardrail and the top surface of the support turntable is a first height difference, the first height difference is less than the height of the drilling joint, and the first height difference is greater than or equal to 0.5 meters.

[0015] In one embodiment, the height of the positioning post is greater than or equal to 12 inches.

[0016] Compared with the prior art, the utility model has the advantage that the drilling joint placed on the supporting turntable can be rotated by manually rotating the supporting turntable to complete the installation or removal of the drilling joint. The rotation speed and rotation angle of the drilling joint can be conveniently and accurately controlled by manual rotation, avoiding over-tightening or over-loosening during installation and removal. Moreover, the positioning column and anti-dumping device are provided to prevent the drilling joint from tilting and falling during use, thereby ensuring the safety of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0018] Figure 1 It is a schematic cross-sectional structure diagram of a tool for installing and removing a joint for oil drilling in the embodiment of the utility model in the main viewing direction;

[0019] Figure 2 The utility model is a schematic diagram of the top view of the installation and removal tool for oil drilling joints in the embodiment of the utility model.

[0020] Reference numerals:

[0021] 1. Base; 2. Support turntable; 21. Turntable body; 22. Rotating shaft; 3. Positioning column; 4. Guardrail; 5. Support rod; 6. Operating gap; 7. Fixed anchor. DETAILED DESCRIPTION

[0022] The utility model will be further described below in conjunction with the accompanying drawings.

[0023] refer to Figure 1 and Figure 2 As shown, a tool for installing and removing oil drilling joints provided by the present application comprises: a base 1, on which a support turntable 2 and an anti-tilt device are installed. When in use, the drilling joint can be placed on the support turntable 2, and the positioning column 3 on the support turntable 2 is inserted into the positioning hole of the drilling joint.

[0024] Since the support turntable 2 can be manually operated to rotate relative to the base 1, the rotation angle of the drilling joint placed on the support turntable 2 can be accurately adjusted by manually rotating the support turntable 2, so that the drilling joint placed on the support turntable 2 can be rotated relative to the suspended drilling joint, thereby realizing the connection or disassembly work between two adjacent drilling joints. Compared with the electric turntable or hydraulic turntable, the advantage of manually rotating the turntable is that the rotation speed and rotation angle can be adjusted in time with the tightening degree. Not only can the drilling joint be properly installed or disassembled, but also the connection thread damage caused by excessive rotation of the drilling joint can be avoided.

[0025] In addition, a positioning column 3 is convexly provided on the upper surface of the support turntable 2. When the drilling joint is placed on the support turntable 2, the positioning column 3 can be inserted into the center hole of the drilling joint to achieve positioning of the drilling joint. In addition, since the positioning column 3 is inserted into the center hole of the drilling joint, the positioning column 3 can be used to abut against the hole wall of the center hole of the drilling joint to prevent the drilling joint from tilting during the rotation process.

[0026] In addition, since an anti-tilt device is installed on the base 1, the anti-tilt device includes a guardrail 4 that is higher than the support turntable 2. Since the inner diameter of the guardrail 4 is larger than the outer diameter of the drilling joint, the guardrail 4 will be placed outside the drilling joint when in use, and the guardrail 4 is higher than the support turntable 2. Through the cooperation of the guardrail 4 and the positioning column 3, the drilling joint can be prevented from tilting at different heights. This can better ensure that the drilling joint will not fall over during the rotation of the support turntable 2, thereby ensuring the safety of the operator. Figure 2 As shown, the guardrail 4 is a circular ring structure. No matter which direction the drilling joint falls, the guardrail 4 can provide support for the drilling joint to prevent the drilling joint from falling and injuring the operator.

[0027] It can be understood that the positioning column 3 extends vertically, and the vertical axis of the positioning column 3 coincides with the vertical rotation centerline of the support turntable 2. When the positioning column 3 is inserted into the positioning hole in the center of the drilling joint, the positioning hole in the center of the drilling joint can be roughly coincident with the vertical rotation axis of the support turntable 2, and no eccentricity will occur during the rotation process.

[0028] See also Figure 1As shown, the positioning column 3 is a tapered columnar structure, and the outer diameter of the top of the positioning column 3 is larger than the outer diameter of the bottom of the positioning column 3. When the drilling joint is placed on the supporting turntable 2 from top to bottom, the small end of the top of the positioning column 3 is first inserted into the center hole of the drilling joint. As the drilling joint falls, the bottom of the drilling joint gradually contacts the larger outer diameter section of the positioning column 3. The side wall of the positioning column 3 can guide the drilling joint to coincide with the vertical axis of the positioning column 3.

[0029] Compared with the positioning column 3 with a cylindrical structure, the positioning column 3 with a conical column structure can be more easily inserted into the central hole of the drilling joint, reducing the hoisting accuracy of the drilling joint and guiding the falling of the drilling joint.

[0030] In some implementations, the outer diameter of the bottom end of the positioning column 3 is equal to the inner diameter of the center hole of the drilling joint. When the positioning column 3 is completely inserted into the center hole of the drilling joint, the outer wall of the bottom end of the positioning column 3 can fit tightly with the hole wall of the center hole of the drilling joint.

[0031] See also Figure 1 As shown, in some implementations, the support turntable 2 is rotatably connected to the base 1 via a bearing. Since the bearing is provided, the rotation resistance of the support turntable 2 is reduced, and the support turntable 2 can be easily rotated during manual operation.

[0032] When two connected drilling joints need to be disassembled, the assembly formed by the drilling joints is placed on the support turntable 2, and the positioning column 3 is inserted into the central hole of the lower drilling joint in the connected drilling joints, and the top of the higher drilling joint is connected to the hanger.

[0033] When the support turntable 2 is manually rotated, the lower drilling joint will rotate with the support turntable 2 under the action of its own weight, while the upper drilling joint cannot rotate due to the restriction of the hanger, thereby achieving relative rotation of the two drilling joints and separating the two drilling joints.

[0034] When two drilling joints need to be connected, one drilling joint is placed on the support turntable 2, and the other drilling joint is suspended above the support turntable 2. The two drilling joints are relatively rotated by rotating the support turntable 2, so that the two drilling joints are connected. It can be understood that the support turntable 2 needs to be rotated in opposite directions during the installation and removal of the drilling joint.

[0035] In some implementations, the support turntable 2 includes a coaxially arranged disk body 21 and a rotating shaft 22, the outer diameter of the rotating shaft 22 is smaller than the outer diameter of the disk body 21, the rotating shaft 22 is located at the bottom of the disk body 21, and the positioning column 3 is arranged on the top surface of the disk body 21. The base 1 is installed with a bearing, and the rotating shaft 22 is rotatably connected to the base 1 through the bearing. Not only is the volume of the support turntable 2 reduced, but also the smaller bearing can be used to realize the bearing connection between the support turntable 2 and the base 1 through the rotating shaft 22 with a smaller diameter and the base 1. Compared with directly connecting the disk body 21 and the base 1 through a bearing, the specification of the bearing is smaller and the cost is relatively lower.

[0036] See also Figure 2 As shown, in some implementations, the anti-tilt device further includes a plurality of support rods 5, the bottom ends of the support rods 5 are mounted on the base 1, the guardrails 4 are mounted on the support rods 5, and an operation gap 6 is formed between two adjacent support rods 5, and the operation gap 6 can be passed by a hand. That is, in the present application, the height of the guardrail 4 is higher than the support turntable 2 by the support rods 5.

[0037] An operating gap 6 is formed between two adjacent support rods 5, and a person can pass through the operating gap 6 to adjust the support turntable 2 to achieve installation and removal of the drilling joint, thereby avoiding difficulty in operating the support turntable 2 due to obstruction by the support components.

[0038] In some implementations, at least three support rods 5 are installed on the base 1, and the support rods 5 are evenly spaced around the axis of the support turntable 2. The evenly spaced support rods 5 can provide uniform support force for the guardrail 4, and can better support the guardrail 4 when the drilling joint is tilted against the guardrail 4. Figure 2 As shown, four support rods 5 are installed on the base 1 . In other implementations, the number of support rods 5 can be increased or decreased according to the diameter of the guardrail 4 and the height of the guardrail 4 .

[0039] like Figure 1 and Figure 2 As shown, in some implementations, a fixing anchor 7 is provided on the base 1. By means of the fixing anchor 7 provided on the base 1, the base 1 can be anchored on the ground, or the base 1 can be anchored on a relevant drilling platform to avoid shaking of the base 1. In some implementations, the base 1 can also be anchored on a drill disc originally used, wherein the drill disc refers to a rotary disc driven by a motor or a rotary disc driven by a hydraulic system.

[0040] See also Figure 1 As shown, a plurality of fixing anchors 7 are arranged on the base 1, and the fixing anchors 7 are arranged at intervals around the vertical axis of the base 1. The base 1 is fixed by a plurality of fixing anchors 7, so that the position of the base 1 can be ensured to be stable. Figure 2As shown, four fixing anchors 7 are arranged on the base 1 , and the four fixing anchors 7 are evenly spaced and distributed around the vertical axis of the base 1 .

[0041] In some implementations, the height difference between the guardrail 4 and the support turntable 2 is a first height difference, the first height difference is less than the height of the drilling joint, and the first height difference is greater than or equal to 0.5 meters. The height of the current drilling joint is generally high (generally greater than 0.5 meters). By setting the height difference between the guardrail 4 and the support turntable 2 to be greater than or equal to 0.5 meters, it can provide a better support and anti-dumping effect for the drilling joint with a higher height. Among them, the first height difference is preferably 0.5 meters, 0.55 meters, and 0.6 meters.

[0042] In some implementations, the height of the positioning column 3 is greater than or equal to 12 inches. By setting the height of the positioning column 3 to be longer, a better anti-dumping effect can be achieved for a longer drilling joint.

[0043] In some implementations, the height difference between the upper surface of the support turntable 2 and the bottom surface of the base 1 ranges from 0.4 meters to 0.6 meters. That is, when the bottom surface of the base 1 is placed against the ground, the height of the upper surface of the support turntable 2 from the ground is 0.4 meters to 0.6 meters, which makes it more convenient for operators to operate the support turntable 2 and avoids the drilling joint from being hoisted too high. The height difference between the upper surface of the support turntable 2 and the bottom surface of the base 1 is preferably 0.4 meters, 0.5 meters, or 0.6 meters.

[0044] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A tool for installing and removing oil drilling joints, characterized in that: It includes: Base; A manually operable support turntable, which is rotatably mounted on the base, the support turntable is higher than the base, and a positioning column is convexly provided on the upper surface of the support turntable, and the positioning column is used to insert a drilling joint; as well as An anti-tilt device is installed on the base, and the anti-tilt device includes a guardrail higher than the supporting turntable, and the inner diameter of the guardrail is larger than the outer diameter of the drilling joint.

2. The installation and removal tool according to claim 1, characterized in that: The vertical axis of the positioning column coincides with the vertical rotation center line of the supporting turntable.

3. The installation and removal tool according to claim 1 or 2, characterized in that: The supporting turntable is rotatably connected to the base via a bearing.

4. The installation and removal tool according to claim 3, characterized in that: The supporting turntable comprises a coaxially arranged disc body and a rotating shaft, the outer diameter of the rotating shaft is smaller than the outer diameter of the disc body, the rotating shaft is located at the bottom of the disc body, and the positioning column is arranged on the top surface of the disc body; The bearing is mounted on the base; The rotating shaft is rotatably connected to the base via the bearing.

5. The installation and removal tool according to claim 1, characterized in that: The anti-tilt device also includes a plurality of support rods, the bottom ends of the support rods are mounted on the base, the guardrails are mounted on the support rods, the support rods are arranged at intervals, and an operating gap is formed between two adjacent support rods, and the operating gap can be passed by a hand.

6. The installation and removal tool according to claim 5, characterized in that: At least three support rods are installed on the base, and the support rods are evenly spaced and arranged around the axis of the support turntable.

7. The installation and removal tool according to claim 1, characterized in that: A fixing anchor is arranged on the base.

8. The installation and removal tool according to claim 7, characterized in that: A plurality of the fixing anchors are arranged on the base, and the fixing anchors are arranged at intervals around the vertical axis of the base.

9. The installation and removal tool according to claim 1 or 2, characterized in that: A height difference between the guardrail and the top surface of the support turntable is a first height difference, the first height difference is less than the height of the drilling joint, and the first height difference is greater than or equal to 0.5 meters.

10. The installation and removal tool according to claim 1 or 2, characterized in that: The height of the positioning column is greater than or equal to 12 inches.

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