Grabbing and clamping installation device for blowout prevention pipe

Abstract

The utility model discloses a grabbing and clamping installation device for a blowout prevention pipe, which comprises a fixing support provided with a pulley block and a grabbing and clamping fixing mechanism used for grabbing and fixing the blowout prevention pipe. Due to the fact that the grabbing and clamping fixing mechanism capable of fixedly grabbing the blowout prevention pipe is arranged on the fixing support, the blowout prevention pipe needing to be installed can be kept vertical and stable while the blowout prevention pipe is fixed, follow-up alignment is facilitated, work efficiency is improved, and in addition, due to the fact that the device is installed at the top end of a suspension arm, under the same bridge shooting operation construction working condition, the blowout prevention pipe needs to be installed. The working height of the crane can be reduced by more than 15 meters, and the tonnage level of the crane can be reduced, so that the operation cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of petroleum equipment, in particular to a grabbing and installing device for a blowout preventer. Background Art

[0002] At present, when the cable pumping bridge plug perforating and fracturing is carried out in the oil and gas field, it is necessary to hoist the blowout preventer string of up to 20 to 30 meters to the wellhead at a height of about 10 meters. Usually, a special hoisting tool is used to hoist the blowout preventer string. Specifically, during the hoisting process, it is necessary to install the lower end of the hoisting tool on the upper shoulder of the blowout preventer. There is still a sealing head of more than six meters at the upper end of the blowout preventer. In addition, the cable needs a long distance after passing through the sky pulley to reduce the angle of entering the sealing head. Therefore, the length of the hoisting tool is usually more than ten meters. This puts great demands on the lifting height of the crane. Usually, a larger crane is required to meet the lifting height requirements, which increases the cost of equipment use. At the same time, it requires multiple people to operate, which increases labor costs and reduces work efficiency. Utility Model Content

[0003] In view of the above-mentioned defects or shortcomings, the purpose of the utility model is to provide a grabbing and installing device for a blowout preventer, which can directly grab and fix the blowout preventer, reduce the lifting height of the crane, and thus reduce the cost of use.

[0004] In order to achieve the above purpose, the technical solution of the utility model is:

[0005] A grabbing and installing device for a blowout preventer comprises a fixing bracket, on which a pulley block and a grabbing and fixing mechanism for grabbing and fixing the blowout preventer are arranged.

[0006] The pulley block is arranged on the top of the fixed bracket.

[0007] A straightening mechanism for guiding and straightening is installed on the fixed bracket.

[0008] The grabbing and fixing mechanism is arranged in the middle of the fixing bracket and matches with the lubricating pipe shoulder.

[0009] The card grabbing and fixing mechanism comprises: a mounting seat mounted on the fixing bracket, and an openable and closable fixing claw is mounted on the mounting seat.

[0010] The fixed claw comprises: a mounting base, on which an openable and closable grasping finger is mounted.

[0011] The fixed clamping claw comprises: a first annular clamping sleeve fixedly mounted on a mounting seat, a second-shaped clamping sleeve hingedly connected to the first annular clamping sleeve and matched with the first annular clamping sleeve, and a locking mechanism is provided on the closing section of the first annular clamping sleeve and the second-shaped clamping sleeve.

[0012] The card grabbing and fixing mechanism branches are linearly distributed at the end, middle and end of the fixing bracket.

[0013] The fixing bracket is a hollow structure.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model provides a grabbing and installing device for a blowout preventer. By arranging a grabbing and fixing mechanism capable of fixing and grasping the blowout preventer on a fixed bracket, the blowout preventer can be fixed while keeping the blowout preventer to be installed vertically and stably, which is beneficial for subsequent alignment and improves work efficiency. In addition, since the utility model is installed at the top of the boom, under the same bridge-shooting operation construction condition, the working height of the crane can be reduced by more than fifteen meters, and the tonnage level of the crane can be reduced, thereby saving operation costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the grabbing and installing device for the blowout preventer of the utility model;

[0017] Figure 2 This is a working schematic diagram of the grabbing and installing device for the blowout preventer of the utility model;

[0018] Figure 3 The structure of the grabbing and fixing mechanism of the new blowout preventer grabbing and installing device is shown in FIG. Figure 1 ;

[0019] Figure 4 The structure of the grabbing and fixing mechanism of the new blowout preventer grabbing and installing device is shown in FIG. Figure 2 .

[0020] In the figure, 1 is a fixed bracket; 2 is a blowout preventer; 3 is a gripping and fixing mechanism; 4 is a pulley block; 5 is a straightening mechanism; 31 is a mounting seat; 32 is a fixed claw; 321 is a mounting base; 322 is a gripping finger; 323 is a first annular ferrule; 324 is a second ferrule. DETAILED DESCRIPTION

[0021] The utility model will be described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.

[0022] In oilfield work, since the blowout preventer needs to be hoisted vertically on the wellhead for installation, it needs to be hoisted by a large hoisting vehicle during the installation process, which puts forward great requirements on the lifting height of the crane. Usually, a larger crane is required to meet the lifting height requirement, resulting in an increase in the cost of equipment use. In order to solve this problem, the utility model provides a grabbing installation device for the blowout preventer, such as Figure 1 , 2 As shown, the grabbing and installing device for the lubricating preventer comprises: a fixed bracket 1, on which a pulley block 4 and a grabbing and fixing mechanism 3 for grabbing and fixing the lubricating preventer 2 are arranged, wherein the pulley block 4 is arranged at the top of the fixed bracket 1. The grabbing and fixing mechanism 3 is arranged and installed in the middle of the fixed bracket 1. The lower end of the fixed bracket 1 is connected to the top of the boom of the crane to fix and straighten the lubricating preventer.

[0023] Preferably, in the utility model, the fixing bracket 1 is provided with a straightening mechanism 5 for guiding and straightening, which can prevent the blowout preventer 2 from shaking and deflecting when it moves up and down, and ensure that it is always located above the wellhead during the whole process. The pulley block 4 is installed at the top of the fixing bracket 1, replacing the function of the original cable top pulley, allowing the cable to enter the sealing head from the ground and bear the cable tension.

[0024] In order to stably grasp the blowout preventer 2, in the utility model, the grasping and fixing mechanism 3 includes: a mounting seat 31 installed on the fixing bracket 1, and an openable and closable fixing claw 32 is installed on the mounting seat 31, which can be freely retracted and operated according to needs.

[0025] It should be noted that the fixed claw 32 in the present invention can be set with different strengths, diameters, materials, and structures according to the grasping requirements. For example, the present invention provides two structures:

[0026] The first one, such as Figure 3 As shown, the fixed claw 32 includes: a mounting base 321, and a grasping finger 322 that can be opened and closed is installed on the mounting base 321. By controlling the opening and closing of the claw, the lubricator 2 can be grasped. In this process, the grasping finger 322 can be opened and closed by a pneumatic device to complete the work.

[0027] The second type, such as Figure 4 As shown, the fixed claw 32 includes: a first annular clamping sleeve 323 fixedly mounted on the mounting seat 31, a second-shaped clamping sleeve 324 that matches the first annular clamping sleeve 323 is hinged on the first annular clamping sleeve 323, and a locking mechanism is provided in the closed section of the first annular clamping sleeve 323 and the second-shaped clamping sleeve 324.

[0028] In the device of the utility model, a plurality of gripping and fixing mechanisms 3 for gripping and fixing the blowout preventer 2 can be provided as required. Exemplarily, taking three as an example, the three gripping and fixing mechanisms 3 can be linearly distributed at the end, middle and end of the fixed bracket 1 to stably grip the blowout preventer 2. It has a structure that matches the blowout preventer shoulder, and the weight of the blowout preventer string is transferred to the fixed bracket through the gripping and fixing mechanism 3. The height position of the gripping and fixing mechanism 3 is the same as the lifting position of the blowout preventer string lifting tool during lifting. The gripping and fixing mechanism 3 is located in the middle and lower part of the fixed bracket, a distance higher than the top of the boom. In addition to the above-mentioned structure, the gripping and fixing mechanism 3 can also be connected in the form of bolts, pins, etc.

[0029] There are two straightening mechanisms 5 in the utility model, which are respectively installed at the upper and lower ends of the fixed bracket 1. The lower straightening mechanism straightens the body of the blowout preventer 2 to ensure the verticality of the blowout preventer string. The upper straightening mechanism straightens the sealing head to prevent the shaking of the sealing head. Both straightening mechanisms 5 have cylindrical surfaces concentric with the blowout preventer string. In order to facilitate the installation of the blowout preventer string, the straightening mechanism 5 is also composed of two separable parts, and its combination can be in the form of bolt connection, pin connection, claws, etc.

[0030] In addition, in the present invention, in order to reduce the weight of the entire device and facilitate operation during operation, the fixing bracket 1 is a hollow structure, while ensuring the rigidity and hardness of the fixing bracket.

[0031] The working process of this utility model:

[0032] When installing the lubricant preventer 2, the crane is first moved to a pre-designed position, and the position is adjusted and then fixed;

[0033] Then, the lubricant preventer 2 is fixedly installed by the pulley block 4, the gripping and fixing mechanism 3, and the straightening mechanism 5 on the fixed bracket 1, and the wellhead is aligned by adjusting the telescopic arm of the crane, so that the fixed bracket carrying the lubricant preventer 2 is vertically aligned with the wellhead;

[0034] Finally, the tool string is lowered into the well through the cooperation of the cable and the pulley block 4.

[0035] Since the grab installation device for the blowout preventer in the present application is installed at the top of the boom, under the same bridge-shooting operation construction conditions, the working height of the crane can be reduced by more than fifteen meters, thus reducing the tonnage level of the crane and saving operating costs.

[0036] It is obvious to those skilled in the art that the above-mentioned specific examples are only preferred schemes of the present invention. Therefore, the improvements and changes that may be made by those skilled in the art to certain parts of the present invention still reflect the principles of the present invention and achieve the purpose of the present invention, and all belong to the scope of protection of the present invention.

Claims

1. A grabbing and installing device for a blowout preventer, characterized in that: include: A fixed bracket (1) is provided with a pulley block (4) and a gripping and fixing mechanism (3) for gripping and fixing the blowout preventer (2).

2. The grabbing and installing device for a lubricating pipe according to claim 1, characterized in that: The pulley block (4) is arranged on the top of the fixed bracket (1).

3. The grabbing and installing device for a lubricating pipe according to claim 1, characterized in that: The fixed bracket (1) is provided with a straightening mechanism (5) for guiding and straightening.

4. The grabbing and installing device for a lubricating pipe according to claim 1 or 3, characterized in that: The grabbing and fixing mechanism (3) is arranged in the middle of the fixing bracket (1) and matches the shoulder of the blowout preventer.

5. The grabbing and installing device for a lubricating pipe according to claim 4, characterized in that: The card grabbing and fixing mechanism (3) comprises: a mounting seat (31) mounted on the fixing bracket (1), and an openable and closable fixing claw (32) is mounted on the mounting seat (31).

6. The grabbing and installing device for a lubricating pipe according to claim 5, characterized in that: The fixed claw (32) comprises a mounting base (321), on which an openable and closable gripping finger (322) is mounted.

7. The grabbing and installing device for a lubricating pipe according to claim 5, characterized in that: The fixed clamping claw (32) comprises: a first annular clamping sleeve (323) fixedly mounted on the mounting seat (31); a second-shaped clamping sleeve (324) which matches the first annular clamping sleeve (323) is hingedly connected to the first annular clamping sleeve (323); and a locking mechanism is provided at the closed section of the first annular clamping sleeve (323) and the second-shaped clamping sleeve (324).

8. The grabbing and installing device for a lubricating pipe according to claim 1, characterized in that: The card grabbing and fixing mechanism (3) is linearly distributed on the fixing bracket (1) at the end, the middle and the end.

9. The grabbing and installing device for a lubricating pipe according to claim 1, characterized in that: The fixing bracket (1) is a hollow structure.

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