Super-tension casing hanger sending and taking tool

Abstract

The utility model discloses a super-tension casing hanger delivering and taking tool, which relates to the technical field of offshore oil operation drilling and comprises a hanger delivering and taking tool, and the lower end of the inner wall of the hanger delivering and taking tool is fixedly connected with a plurality of groups of L-shaped blocks. According to the hanger feeding and taking tool, the L-shaped block in the hanger feeding and taking tool is aligned with the mounting channel in the surface of the tension sleeve hanger, then the hanger feeding and taking tool is moved downwards to the mounting limiting plane on the tension sleeve hanger, and then the hanger feeding and taking tool is rotated by 90 degrees clockwise; a torque block on the tension sleeve hanger is installed in an L-shaped groove of the hanger feeding and taking tool, the hanger feeding and taking tool is lifted upwards, the lower plane of the torque block on the tension sleeve hanger makes contact with the bottom plane of the L-shaped groove, clamping between the hanger feeding and taking tool and the tension sleeve hanger is completed, and it is effectively avoided that the hanger feeding and taking tool and the tension sleeve hanger are fixed through threads; and under the action of high stress, the thread is damaged, so that the hanger sending and taking tool cannot be taken out.

Description

Technical Field

[0001] The utility model relates to the technical field of offshore oil drilling operations, in particular to a super-tension casing hanger delivery and extraction tool. Background Art

[0002] The super-tension casing hanger delivery and retrieval tools are mainly derived from the needs of oil and gas exploration and subsea oil and gas well development. In the completion process of subsea oil and gas wells, the installation and recovery of the hanger is an important link. These hangers are used to hang pipes or casings from the wellhead to ensure safety and stability under extreme conditions.

[0003] The existing hanger delivery and retrieval tool is usually connected to the tension casing hanger by threads, and the threads are fixed. Under the action of high stress, the threads may be damaged, making the hanger delivery and retrieval tool unable to be removed. Therefore, an ultra-tension casing hanger delivery and retrieval tool is proposed. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a super-tension casing hanger delivery and retrieval tool to solve the technical problems raised in the above background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ultra-tension casing hanger delivery and retrieval tool, comprising a hanger delivery and retrieval tool, wherein the lower end of the inner wall of the hanger delivery and retrieval tool is fixedly connected to a plurality of groups of L-shaped blocks, the inner wall of the hanger delivery and retrieval tool is provided with an L-shaped groove, and the surface of the hanger delivery and retrieval tool is provided with a plurality of groups of fluid drag reducing grooves.

[0006] As a preferred technical solution of the super-tension casing hanger delivery and retrieval tool of the utility model, the L-shaped blocks are provided in four groups, and the four groups of L-shaped blocks are arranged in a circular array on the inner wall of the hanger delivery and retrieval tool.

[0007] As a preferred technical solution of the super-tension casing hanger delivery and retrieval tool of the utility model, a stopper is welded on one side of the L-shaped block, and the stopper is fixedly connected to the inner wall of the hanger delivery and retrieval tool.

[0008] As a preferred technical solution of a super-tension casing hanger delivery and retrieval tool of the utility model, eight groups of fluid drag reduction grooves are provided, and the eight groups of fluid drag reduction grooves are arranged in a circular array on the surface of the hanger delivery and retrieval tool.

[0009] As a preferred technical solution of a super-tension casing hanger delivery and retrieval tool of the utility model, an O-ring is installed on the inner wall of the hanger delivery and retrieval tool.

[0010] As a preferred technical solution of a super-tension casing hanger delivery and retrieval tool of the utility model, a tension casing hanger is clamped inside the hanger delivery and retrieval tool.

[0011] In summary, the utility model mainly has the following beneficial effects:

[0012] 1. The utility model aligns the L-shaped block inside the hanger delivery tool with the installation channel on the surface of the tension casing hanger, then moves the hanger delivery tool down to the installation limit plane on the tension casing hanger, then rotates the hanger delivery tool clockwise by 90 degrees, so that the torque block on the tension casing hanger is installed in the L-shaped groove of the hanger delivery tool, lifts the hanger delivery tool, so that the lower plane of the torque block on the tension casing hanger contacts the bottom plane of the L-shaped groove, completes the clamping connection between the hanger delivery tool and the tension casing hanger, and effectively avoids the situation that the two are fixed by threads, and the threads are damaged under the action of high stress, resulting in the hanger delivery tool being unable to be removed.

[0013] 2. The utility model uses a clamping connection to make a non-threaded connection between the hanger delivery tool and the tension casing hanger. The hanger delivery tool can be taken out by rotating the hanger delivery tool 90 degrees counterclockwise, thus solving the risk of the casing string being buckled due to the threaded connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the overall components of the utility model;

[0015] Figure 2 It is a three-dimensional schematic diagram of the hanger delivery and retrieval tool of the utility model;

[0016] Figure 3 It is a cross-sectional view of the hanger delivery and retrieval tool of the utility model;

[0017] Figure 4 It is a top view of the hanger delivery and retrieval tool of the utility model.

[0018] In the figure: 100, hanger delivery and retrieval tool; 110, L-shaped block; 111, L-shaped groove; 112, stopper; 120, fluid drag reduction groove; 130, O-ring; 140, tension casing hanger. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0020] The following describes an embodiment of the utility model based on its overall structure.

[0021] A super tension casing hanger delivery tool, such as Figure 1-4As shown, it includes a hanger delivery tool 100, a plurality of L-shaped blocks 110 are fixedly connected to the lower end of the inner wall of the hanger delivery tool 100, an L-shaped groove 111 is arranged on the inner wall of the hanger delivery tool 100, and a plurality of fluid drag reduction grooves 120 are opened on the surface of the hanger delivery tool 100.

[0022] The upper end of the hanger delivery tool 100 is connected to the casing short circuit, and then connected to the top drive or drill pipe of the drilling rig. The L-shaped block 110 inside the hanger delivery tool 100 is aligned with the installation channel on the surface of the tension casing hanger 140. Then, the hanger delivery tool 100 is moved down to the installation limit plane on the tension casing hanger 140. Then, the hanger delivery tool 100 is rotated clockwise by 90 degrees to install the torque block on the tension casing hanger 140 in the L-shaped groove 111 of the hanger delivery tool 100. The hanger delivery tool 100 is lifted up to make the tension casing hanger 140 0 contacts the bottom plane of the L-shaped groove 111, completing the clamping connection between the hanger delivery tool 100 and the tension casing hanger 140, effectively avoiding the situation where the threads are damaged under the action of high stress due to threaded fixation between the two, resulting in the hanger delivery tool 100 being unable to be removed. At the same time, the hanger delivery tool 100 is connected to the tension casing hanger 140 in a non-threaded manner through the clamping connection. The hanger delivery tool 100 can be removed by rotating the hanger delivery tool 100 counterclockwise for ninety degrees, thereby solving the risk of the casing string being buckled due to the threaded connection.

[0023] Please refer to Figure 2 and Figure 3 There are four groups of L-shaped blocks 110, and the four groups of L-shaped blocks 110 are arranged in a circular array on the inner wall of the hanger delivery tool 100. A stopper 112 is welded on one side of the L-shaped block 110, and the stopper 112 is fixedly connected to the inner wall of the hanger delivery tool 100.

[0024] The stopper 112 on the inner wall of the hanger delivery tool 100 can prevent the tension casing hanger 140 from escaping from the hanger delivery tool 100 .

[0025] Please refer to Figure 2 and Figure 4 There are eight groups of fluid drag reducing grooves 120 , and the eight groups of fluid drag reducing grooves 120 are arranged in a circumferential array on the surface of the hanger delivery tool 100 .

[0026] The design of the fluid drag reducing groove 120 helps to enhance the stability of the hanger delivery and retrieval tool 100 . When the hanger delivery and retrieval tool 100 is impacted by external force, the fluid drag reducing groove 120 can reduce the impact and vibration of the fluid on the hanger delivery and retrieval tool 100 .

[0027] Please refer to Figure 1 and Figure 3An O-ring 130 is installed on the inner wall of the hanger delivery tool 100, and a tension casing hanger 140 is clamped inside the hanger delivery tool 100.

[0028] The O-ring 130 can be provided to effectively prevent environmental factors from causing damage to the interior of the hanger delivery and retrieval tool 100 , thereby ensuring the stability and reliability of the hanger delivery and retrieval tool 100 .

[0029] When in use, the hanger delivery and removal tool 100 is clamped with the tension casing hanger 140, which effectively avoids the two being fixed by threads, which may damage the threads under the action of high stress and make the hanger delivery and removal tool 100 unable to be removed. At the same time, the hanger delivery and removal tool 100 is connected to the tension casing hanger 140 in a non-threaded manner through clamping. The hanger delivery and removal tool 100 can be removed by rotating the hanger delivery and removal tool 100 counterclockwise by ninety degrees, which solves the risk that the casing string may be reversed due to the threaded connection. The parts not involved in the device are the same as the prior art or can be implemented by the prior art.

[0030] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A super tension casing hanger delivery and retrieval tool, comprising a hanger delivery and retrieval tool (100), characterized in that: The lower end of the inner wall of the hanger delivery tool (100) is fixedly connected to a plurality of groups of L-shaped blocks (110), the inner wall of the hanger delivery tool (100) is provided with an L-shaped groove (111), and the surface of the hanger delivery tool (100) is provided with a plurality of groups of fluid drag reduction grooves (120).

2. The super tension casing hanger delivery and retrieval tool according to claim 1, characterized in that: The L-shaped blocks (110) are provided in four groups, and the four groups of L-shaped blocks (110) are arranged in a circular array on the inner wall of the hanger delivery tool (100).

3. The super tension casing hanger delivery and retrieval tool according to claim 2, characterized in that: A stopper (112) is welded to one side of the L-shaped block (110), and the stopper (112) is fixedly connected to the inner wall of the hanger delivery and retrieval tool (100).

4. The super tension casing hanger delivery and retrieval tool according to claim 1, characterized in that: The fluid drag reduction grooves (120) are provided in eight groups, and the eight groups of the fluid drag reduction grooves (120) are arranged in a circular array on the surface of the hanger delivery and retrieval tool (100).

5. The super tension casing hanger delivery and retrieval tool according to claim 1, characterized in that: An O-shaped sealing ring (130) is installed on the inner wall of the hanger delivery and retrieval tool (100).

6. The super tension casing hanger delivery and retrieval tool according to claim 1, characterized in that: A tension casing hanger (140) is clamped inside the hanger delivery tool (100).

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