Oil pipe under-pressure operation protector for oil well

By introducing a connection mechanism into the live tubing operation in oil wells, the problem of instability between the pressure gauge and the tubing body installation components was solved, achieving a more stable connection and seal, and ensuring the accuracy and safety of pressure testing.

CN223469255UActive Publication Date: 2025-10-24DAQING JINGTAI PETROLEUM ENG TECH
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Patent Information

Application Number
CN202422977289.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-03
Publication Date
2025-10-24
Estimated Expiration
2034-12-03

AI Technical Summary

Technical Problem

During live oil well operations, the threaded connection between the pressure gauge and the mounting components on the tubing body is unstable, resulting in instability and insufficient sealing.

Method used

Design a live tubing protection device for oil wells. The device uses a connection mechanism consisting of a connection component, a mounting flange, and a mounting base. The connection stability and sealing performance are improved by a guide block and a sealing component. The device includes a guide block, a threaded base, and a sealing component. The guide block guides the threaded connection, and the sealing component increases stability and sealing performance.

Benefits of technology

This improves the connection stability and sealing of the pressure gauge and oil pipe mounting assembly, ensuring the accuracy of pressure testing and ease of operation, and avoiding connection loosening caused by accidental rotation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223469255U_ABST
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Abstract

The utility model discloses an oil pipe under-pressure operation protector for an oil well, which comprises a mounting component fixed on the surface of an oil pipe body and a pressure gauge arranged at the top end of the mounting component, a connecting mechanism is arranged between the pressure gauge and the mounting component, and the connecting mechanism consists of a connecting component, a mounting flange and a mounting seat. The mounting flange is fixed at the bottom end of the pressure gauge, the mounting seat is arranged at the top end of the mounting assembly, and the connecting assembly is arranged at the joint of the mounting flange and the mounting seat; by means of the designed connecting mechanism, the phenomenon that an original pressure gauge is connected only through threads in the installation process, and installation is unstable is improved, the connecting mechanism is arranged between the pressure gauge and the installation assembly on the oil pipe body, the pressure gauge and the installation assembly are installed through the connecting mechanism, and under the condition that convenient operation is guaranteed, the installation efficiency is improved. The use stability and the sealing performance after connection are improved, and the accuracy of the value tested by the pressure gauge is ensured.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to oil pipe protection technical field, concretely relates to an oil well oil pipe with pressure operation protector. BACKGROUND

[0002] The oil well oil pipe with pressure operation refers to the downhole operation technology of the oil, gas and water well wellhead under pressure, the pipe rod, wellbore repair and stimulation measures are carried out in the oil well, and the pressure of the oil pipe is tested by the pressure gauge during the operation process to ensure the safety and effectiveness during the operation process.

[0003] The existing oil well oil pipe with pressure operation is protected by the pressure gauge, when the pressure gauge and the mounting assembly on the oil pipe body need to be installed, the two are connected by the threaded mode, and when the pressure gauge is misrotated during the use process after the two are connected, the connection between the pressure gauge and the mounting assembly is loose, and the connection is not stable, therefore, the utility model provides an oil well oil pipe with pressure operation protector. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing an oil well oil pipe with pressure operation protector to solve the unstable problem of the installation mode between the pressure gauge and the mounting assembly on the oil pipe body.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: an oil well oil pipe with pressure operation protector, including the mounting assembly fixed on the surface of the oil pipe body, the pressure gauge is arranged at the top of the mounting assembly, the connecting mechanism is arranged between the pressure gauge and the mounting assembly, the connecting mechanism is composed of the connecting assembly, the mounting flange and the mounting seat, the mounting flange is fixed at the bottom of the pressure gauge, the mounting seat is arranged at the top of the mounting assembly, and the connecting assembly is arranged at the connecting position of the mounting flange and the mounting seat.

[0006] Preferably, the connecting assembly is composed of the fixed assembly and the sealing assembly, the fixed assembly is composed of the guide block and the threaded base, the threaded base is fixed at the top of the mounting seat, the guide block is fixed at the top of the threaded base, the sealing assembly is composed of the mounting ring and the silica gel sleeve, the mounting ring is sleeved on the surface of the threaded base, and the bottom of the mounting ring is fixed with the top of the mounting seat, and the silica gel sleeve is sleeved on the surface of the mounting ring and is in the fixed state.

[0007] Preferably, the inner wall of the silica gel sleeve is attached to the outer surface of the mounting ring, and the top edge of the silica gel sleeve is inclined.

[0008] Preferably, the inner diameter of the guide block is consistent with the inner diameter of the threaded base.

[0009] Preferably, the inner side of the pressure gauge is provided with a baratron, and the inner side of the pressure gauge is provided with a movement.

[0010] Preferably, the mounting assembly is composed of a valve and a mounting pipe, and the valve is arranged on the side of the mounting pipe.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] Through the connecting mechanism, the original pressure gauge is only connected by threads during installation, and the installation is not stable, the connecting mechanism is arranged between the pressure gauge and the mounting assembly on the oil pipe body, the two are installed through the connecting mechanism, the operation is convenient, the stability and the sealing performance after connection are improved, and the accuracy of the test value of the pressure gauge is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of the utility model;

[0014] Figure 2 It is a pressure gauge and a mounting assembly installation schematic view of the utility model;

[0015] Figure 3 It is a pressure gauge and a mounting assembly installation schematic view of the utility model; Figure 2

[0016] In the drawing: 1, oil pipe body; 2, pressure gauge; 3, mounting assembly; 31, valve; 32, mounting pipe; 4, connecting mechanism; 40, connecting assembly; 401, fixed assembly; 4011, guide block; 4012, threaded base; 402, sealing assembly; 4021, mounting ring; 4022, silica gel sleeve; 41, mounting flange; 42, mounting seat. DETAILED DESCRIPTION

[0017] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0018] Please refer to Figures 1 to 3 ​The utility model provides a kind of technical scheme: an oil well with tubing pressure operation protector, including the installation component 3 being fixed to the surface of tubing body 1, pressure gauge 2 is set to the top of installation component 3, connecting mechanism 4 is provided between pressure gauge 2 and installation component 3, pressure gauge 2 and installation component 3 on tubing body 1 are installed between connecting mechanism 4 by connecting mechanism 4, connecting mechanism 4 is composed of connecting component 40, mounting flange 41, mounting seat 42, mounting flange 41 is fixed to the bottom end of pressure gauge 2, mounting seat 42 is set to the top of installation component 3, connecting component 40 is set to the junction of mounting flange 41 and mounting seat 42, by the connecting mechanism 4 of design, improve the phenomenon that only the way of screw connection is used in the installation process of original pressure gauge 2, there is certain installation instability, by setting connecting mechanism 4 between pressure gauge 2 and installation component 3 on tubing body 1, the two are installed between connecting mechanism 4, in the case where ensuring that operation is convenient, improve the use stability and sealing property after the connection of the two, ensure the accuracy of the value tested by pressure gauge 2, connecting component 40 is composed of fixed component 401, sealing component 402, fixed component 401 is composed of guide block 4011, threaded base 4012, by guide block 4011, mounting flange 41 and threaded base 4012 are screw-connected, play a guiding role in the process, increase the connection convenience, threaded base 4012 is fixed to the top of mounting seat 42, guide block 4011 is fixed to the top of threaded base 4012, sealing component 402 is composed of mounting ring 4021, silica gel sleeve 4022, mounting ring 4021 is sleeved on the surface of threaded base 4012, by sealing component 402, the connection between mounting flange 41 and mounting seat 42 is increased in stability and sealing property on the basis of original, and the bottom end of mounting ring 4021 is fixed with the top of mounting seat 42, silica gel sleeve 4022 is sleeved on the surface of mounting ring 4021 and is in fixed state, the inner wall of silica gel sleeve 4022 is attached to the outer surface of mounting ring 4021, the top edge of silica gel sleeve 4022 is inclined structure, the inner diameter size of guide block 4011 is consistent with the inner diameter size of threaded base 4012, installation component 3 is composed of valve 31, mounting pipe 32, valve 31 is arranged on the side surface of mounting pipe 32.

[0019] In the embodiment, preferably, the inside of the pressure gauge 2 is provided with a baratron tube, and the inside of the pressure gauge 2 is provided with a movement. The pointer on the pressure gauge 2 is moved by the baratron tube and the movement to display the pressure test result.

[0020] The working principle and use flow of the utility model: when need to install pressure gauge 2 and installation assembly 3 on oil pipe body 1, first rotate pressure gauge 2, connect installation flange 41 and connecting assembly 40, in the connecting process, through the guide of guide block 4011, make installation flange 41 and threaded base 4012 screw thread rotation connection, and in the screw thread rotation process, make installation ring 4021 card into 4023 in the bottom end of installation flange 41, and simultaneously extrude silica gel sleeve 4022, after installation flange 41 and mounting seat 42 screw thread connection, form further fixation, complete the installation of pressure gauge 2, when oil pipe body 1 operation process, through the installation of pressure gauge 2, make pressure test to oil pipe when oil well construction, ensure that petroleum has no pressure leakage phenomenon, to ensure safe and reliable operation.

[0021] Although the embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made thereto without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A tubing pressure work protector for oil well, comprising a mounting assembly (3) fixed on the surface of tubing body (1), a pressure gauge (2) arranged at the top end of the mounting assembly (3), characterized in that: The connecting mechanism (4) is arranged between the pressure gauge (2) and the mounting assembly (3), and is composed of a connecting assembly (40), a mounting flange (41) and a mounting seat (42).

2. A tubing pressure workover protector for use in oil wells as defined in claim 1, characterized in that: The connecting assembly (40) is composed of a fixing assembly (401) and a sealing assembly (402).

3. A tubing pressure workover protector for use in oil wells as defined in claim 2, characterized in that: The inner wall of the silica gel sleeve (4022) is in close contact with the outer surface of the mounting ring (4021).

4. A tubing pressure workover protector for use in oil wells as defined in claim 2, characterized in that: The inner diameter of the guide block (4011) is consistent with the inner diameter of the threaded base (4012).

5. The tubing pressure workover protector for oil wells of claim 1 wherein: The inner side of the pressure gauge (2) is provided with a baratron tube.

6. A tubing pressure workover protector for use in oil wells as defined in claim 1, characterized by: The mounting assembly (3) is composed of a valve (31) and a mounting pipe (32). The valve (31) is arranged on the side surface of the mounting pipe (32).