Steel wire composite cable anchoring mechanism
Through the steel wire composite cable anchoring mechanism, the problem of hydraulic anchors being difficult to bear load and pressure relief observation is solved, and rapid anchoring and pressure monitoring are achieved to ensure the stability and reliability of underground operations.
Patent Information
- Application Number
- CN202422522892.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-18
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-10-18
AI Technical Summary
In the prior art, hydraulic anchors are difficult to bear the weight of the underground working cylinder and are difficult to observe the underground situation during pressure relief, resulting in unstable anchoring and difficulty in observation.
The wire composite cable anchoring mechanism is adopted, including suspended barrels, pressurized barrels, hydraulic anchors and adapter barrels, combined with cone sleeves, adjustment gaskets, pressure sensors and other components to achieve rapid anchoring and pressure monitoring.
It realizes rapid salvage and bears the weight of the working cylinder, and has downhole anchoring and pressure loss monitoring functions to ensure the rapid, stable and reliable downhole positioning and construction.
Smart Images
Figure CN223177495U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of petroleum downhole equipment, in particular to a steel wire composite cable anchoring mechanism adopting a hydraulic control principle. Background Art
[0002] In some offshore oil and gas operations, the mandrel needs to be positioned and anchored underground before being lowered. Conventional anchoring methods include hydraulic anchors, but the anchor claws of hydraulic anchors alone cannot bear the weight of the mandrel underground. Furthermore, if a conventional hydraulic anchor fails and depressurizes, it is difficult to visually observe the underground situation, making it inadequate for practical use. Utility Model Content
[0003] In order to solve the above technical problems, the utility model provides a steel wire composite cable anchoring mechanism.
[0004] The utility model is realized by adopting the following technical solutions.
[0005] A steel wire composite cable anchoring mechanism comprises a suspension cylinder, a pressure cylinder, a hydraulic anchor and a transition cylinder connected in sequence; a cone sleeve and an adjustment gasket are provided in the cavity formed by the suspension cylinder and the pressure cylinder; a plurality of anchor claws are provided on the hydraulic anchor, the anchor claws are connected to a spring, and a capsule is provided in the hydraulic anchor; a pressure sensor is provided on the transition cylinder.
[0006] Furthermore, the upper end of the suspension tube forms a fishing head.
[0007] Furthermore, a clamping surface is formed on the upper outer wall of the suspension tube.
[0008] Furthermore, a pin hole is formed at the lower portion of the suspension cylinder; a pin groove is provided on the outer wall of the pressurizing cylinder, and the pin groove matches the setting position of the pin hole.
[0009] Furthermore, the lower portion of the pressurizing cylinder forms a hexagonal block.
[0010] Furthermore, an oil pipe buckle is formed at the lower end of the adapter tube.
[0011] Furthermore, a punching hole is formed at the upper end of the capsule.
[0012] The utility model achieves the following beneficial effects.
[0013] The utility model can realize rapid salvage after being dropped into the well, pull the working cylinder, and bear the weight of the working cylinder. The utility model also has the functions of pressure loss monitoring, downhole anchoring, and anti-backlash protection, and can be quickly assembled and constructed on site. When operating in non-standard offshore oil fields, the utility model can conveniently and quickly realize downhole positioning, anchoring and downhole hydraulic pressure detection, and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural diagram of the utility model;
[0015] Figure 2 It is a cross-sectional view of the present utility model.
[0016] Including: 1. Suspension tube, 1-1. Fishing head, 1-2. Clamping surface, 1-3. Pin hole, 2. Pressurization tube, 2-1. Hexagonal block, 2-2. Pin slot, 3. Hydraulic anchor, 4. Anchor claw, 5. Adapter tube, 5-1. Pressure sensor, 5-2. Oil pipe buckle, 6. Capsule, 6-1. Pressure hole, 7. Spring, 8. Cone sleeve, 9. Adjustment gasket. DETAILED DESCRIPTION
[0017] The technical solution of the present invention will be clearly and completely described below through specific implementation methods.
[0018] like Figure 1-2 As shown, a steel wire composite cable anchoring mechanism includes a suspension tube 1, a fishing head 1-1, a clamping surface 1-2, a pin hole 1-3, a pressure tube 2, a hexagonal block 2-1, a pin groove 2-2, a hydraulic anchor 3, an anchor claw 4, an adapter tube 5, a pressure sensor 5-1, an oil pipe buckle 5-2, a capsule 6, a pressure hole 6-1, a spring 7, a cone sleeve 8, and an adjustment gasket 9.
[0019] A salvage head 1-1 is placed above the suspension tube 1 to facilitate rapid salvage of the working tube after it falls into the well; a clamping surface 1-2 is provided on the upper outer wall of the suspension tube 1 to facilitate rapid on-site assembly and construction operations; a pin hole 1-3 is provided at the lower part of the suspension tube 1.
[0020] The upper middle portion of the pressurizing cylinder 2 is embedded in the suspension cylinder 1. A pin slot 2-2 is defined on the central outer wall of the pressurizing cylinder 2. Pin slot 2-1 aligns with pin hole 1-3, preventing the device from buckling. A hexagonal block 2-1 is positioned below the pin slot 2-2, facilitating rapid on-site assembly and construction.
[0021] The cavity formed between the suspension tube 1 and the pressurizing tube 2 of this application is provided with a cone sleeve 8 and an adjustment gasket 9. By passing the steel wire composite cable through the middle hole of the equipment, the outer steel wire is peeled off and placed between the cone sleeve 8 and the suspension tube 1, thereby completing the pulling and load-bearing functions of the steel wire composite cable anchoring mechanism.
[0022] The lower part of the pressure cylinder 2 is connected to the hydraulic anchor 3. A capsule 6 is arranged inside the hydraulic anchor 3. A pressure injection hole 6-1 is provided at the upper end of the capsule 6. The core of the hydraulic pipeline led out through the steel wire composite cable is connected to the pressure injection hole 6-1 on the capsule 6 to complete the pressure injection function. An anchor claw 4 is arranged on the hydraulic anchor 3, and a spring 7 is arranged on the anchor claw 4. Through the above structure, after the capsule 6 is pressurized and expanded, the spring anchor claw is pressed to open, realizing downhole anchoring.
[0023] A transfer cylinder 5 is arranged below the hydraulic anchor 3, and a pressure sensor 5-1 is arranged on the upper part of the transfer cylinder 5. The electrical core led out through the steel wire composite cable is connected to the pressure sensor 5-1. After the pressure of the capsule 6 inside the hydraulic anchor 3 leaks, the pressure sensor 5-1 (SCYG314 analog sensor) alarms, realizing pressure leakage monitoring. An oil pipe joint 5-2 is arranged at the lower end of the transfer cylinder 5, and the oil pipe joint 5-2 is used to connect to the equipment below.
[0024] The above-described embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by ordinary engineering and technical personnel in the field to the technical solution of the present invention should fall within the protection scope of the present invention. The technical content for which the present invention requests protection has been fully recorded in the claims.
Claims
1. A steel wire composite cable anchoring mechanism, characterized in that, It includes a suspension cylinder (1), a pressure cylinder (2), a hydraulic anchor (3) and an adapter cylinder (5) connected in sequence; a taper sleeve (8) and an adjusting gasket (9) are arranged in the cavity formed by the suspension cylinder (1) and the pressure cylinder (2); several anchor claws (4) are arranged on the hydraulic anchor (3), the anchor claws (4) are connected with a spring (7), and a capsule (6) is arranged in the hydraulic anchor (3); a pressure sensor (5-1) is arranged on the adapter cylinder (5).
2. The wire composite cable anchoring mechanism according to claim 1, characterized in that, A fishing head (1-1) is formed at the upper end of the suspension cylinder (1).
3. The wire composite cable anchoring mechanism according to claim 1, characterized in that, A clamping surface (1-2) is formed on the outer wall of the upper part of the suspension cylinder (1).
4. The wire composite cable anchoring mechanism according to claim 1, characterized in that, A pin hole (1-3) is formed at the lower part of the suspension cylinder (1); a pin slot (2-2) is opened on the outer wall of the pressure cylinder (2), and the setting position of the pin slot (2-2) matches that of the pin hole (1-3).
5. The wire composite cable anchoring mechanism according to claim 1, characterized in that, A hexagonal block (2-1) is formed at the lower part of the pressure cylinder (2).
6. The wire composite cable anchoring mechanism according to claim 1, characterized in that, An oil pipe thread (5-2) is formed at the lower end of the adapter cylinder (5).
7. A wire composite cable anchoring mechanism according to claim 1, characterized in that, A pressure injection hole (6-1) is formed at the upper end of the capsule (6).