An ultra-high load lifting belt for oil drilling

Abstract

The utility model relates to the technical field of hoisting belt, especially to a superhigh load hoisting belt for oil drilling, which comprises a hoisting belt body, a plurality of cores are arranged in the hoisting belt body, the hoisting belt body is fully coated on the outside of the plurality of cores, the plurality of cores are arranged in the hoisting belt body, and the plurality of cores are arranged in the hoisting belt body at equal intervals, the utility model adopts galvanized steel wire with a diameter of 4.0 mm, which is arranged in the center and at equal intervals, greatly enhances the overall structural strength of the hoisting belt, meets the needs of superhigh load scenes such as the lifting and lowering of drilling tools in oil drilling operations, and solves the problem of insufficient load capacity of traditional hoisting belts.

Description

Technical Field

[0001] This utility model relates to the field of lifting belt technology, specifically a lifting belt for ultra-high load oil drilling. Background Technology

[0002] In oil drilling operations, the hoist belt, as a key transmission component, is mainly used to connect drilling equipment and drill strings, undertaking heavy-duty tasks such as hoisting and lowering the drill strings. Its performance directly affects drilling efficiency, equipment safety, and operating costs. Currently, about half of oil drilling projects are located in northern my country, where the outdoor environment is characterized by low temperatures, large diurnal temperature variations, strong ultraviolet radiation, and frequent changes in air humidity, placing stringent requirements on the hoist belt's weather resistance, structural strength, and service life.

[0003] In existing technologies, lifting belts for oil drilling are mostly made of rubber, with embedded fibers or ordinary steel wires as a reinforcing skeleton. However, when rubber materials are used for a long time in the northern outdoor environment, they are prone to surface cracking, internal structural aging, and corrosion due to factors such as low temperature embrittlement, ultraviolet aging, and humidity erosion. This leads to a decline in the mechanical properties of the lifting belt and a generally shorter service life. At the same time, the bonding strength between the skeleton material and the rubber matrix of traditional rubber lifting belts is insufficient, and the skeleton material is prone to oxidation and corrosion when in contact with air, further aggravating the risk of cracking of the lifting belt.

[0004] Therefore, a high-load lifting belt for oil drilling is needed to improve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a lifting belt for ultra-high load oil drilling to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A high-load oil drilling lifting belt includes a lifting belt body, wherein a plurality of wire cores are disposed inside the lifting belt body, the lifting belt body completely covers the outside of the plurality of wire cores, the plurality of wire cores are centrally disposed inside the lifting belt body, and the plurality of wire cores are arranged at equal intervals inside the lifting belt body.

[0007] As a preferred embodiment of this utility model, a plurality of the wire cores are located at the thickness center of the lifting belt body.

[0008] As a preferred embodiment of this utility model, the core wire is made of galvanized steel wire with a diameter of 4mm.

[0009] As a preferred embodiment of this utility model, the tensile strength of a single galvanized steel wire is not less than 18000N.

[0010] As a preferred embodiment of this utility model, the lifting belt body is integrally molded using thermoplastic polyurethane.

[0011] Compared with the prior art, the beneficial effects of this utility model are: The core of this utility model uses galvanized steel wire with a diameter of 4.0mm, and is arranged in a central and equally spaced manner, which greatly enhances the overall structural strength of the lifting belt. It can meet the needs of ultra-high load scenarios such as drill string lifting and lowering in oil drilling operations, and solve the problem of insufficient load capacity of traditional lifting belts. The core is tightly integrated with the main body of the lifting belt, the stress is even, and the overall structural strength is high, which can effectively reduce the risk of sudden breakage of the lifting belt in heavy-load operations, and provide more reliable safety protection for oil drilling operations. In this utility model, the main body of the lifting belt is made of thermoplastic polyurethane material, which has excellent low temperature resistance, UV aging resistance and corrosion resistance. It effectively avoids the problems of surface cracking and structural aging caused by low temperature embrittlement, UV radiation and humidity erosion in the northern outdoor environment of traditional rubber lifting belts. The stability of the lifting belt in harsh environments is significantly improved. This invention uses a full-wrap process to completely encase the steel wire inside the polyurethane, isolating it from air and preventing oxidation and corrosion. At the same time, a secondary lamination method is used to ensure that the steel wire is centered within the lifting belt, avoiding longitudinal cracking caused by uneven stress. This solves the structural failure problem of traditional lifting belts caused by misalignment of the skeleton material and corrosion, and significantly improves the overall crack resistance of the lifting belt. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] In the diagram: 1. Lifting belt body; 2. Core wire. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0015] To facilitate understanding of this utility model, a more comprehensive description of it will be provided below with reference to relevant embodiments. Several embodiments of this utility model are given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0016] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0018] Please see Figure 1 This utility model provides a technical solution: For an example, please refer to... Figure 1 A high-load oil drilling lifting belt includes a lifting belt body 1, with a plurality of wire cores 2 disposed inside the lifting belt body 1. The lifting belt body 1 is completely covered on the outside of the plurality of wire cores 2, and the plurality of wire cores 2 are centrally disposed inside the lifting belt body 1 and are arranged at equal intervals inside the lifting belt body 1.

[0019] The overall structure includes a lifting belt body 1 and embedded wire cores 2. The lifting belt body 1 is a long strip continuous structure, made of thermoplastic polyurethane through an integral molding process. The wire cores 2 are galvanized steel wires with a diameter of 4.0 mm. The breaking tensile strength of a single wire core 2 is ≥18000N. They are arranged parallel to each other along the length of the lifting belt body 1, and the wire cores 2 are evenly spaced and centrally located. The lifting belt body 1 forms a full-coverage structure for the wire cores 2. The two are tightly bonded through a full-coverage process and a double-layer lamination method.

[0020] The full-encapsulation process involves covering and sealing the material to ensure that the core 2 is completely embedded inside the lifting belt body 1, preventing contact with air and moisture.

[0021] The double-layer lamination method solves the problem of uneven force caused by the easy displacement of the wire core 2 in the traditional process, and ensures that the wire core 2 is at the center of the thickness of the lifting belt body 1, so that it remains centered.

[0022] The conductor 2 is completely wrapped by the main body 1 of the lifting belt, isolating it from air, moisture, and corrosive media in the drilling environment. The corrosion rate of the conductor 2 is reduced compared to traditional rubber lifting belts, and its service life is effectively extended. Several wire cores 2 are located at the thickness center of the lifting belt body 1. The wire cores 2 are made of galvanized steel wire with a diameter of 4mm. The tensile strength of a single galvanized steel wire is not less than 18000N. The wire cores 2 are precisely centered on the lifting belt body 1 to avoid local stress concentration.

[0023] The main body 1 of the lifting belt is integrally molded with thermoplastic polyurethane. The thermoplastic polyurethane used in the main body 1 is resistant to low temperature and UV aging. Combined with the fully enclosed structure of the core 2, it can work stably in extreme temperature difference and strong UV environment in the north, from -30℃ to 50℃, solving the problems of low temperature embrittlement and aging cracking of traditional rubber lifting belts.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-load oil drilling hoisting belt, comprising a hoisting belt body (1), wherein the hoisting belt body (1) is provided with a plurality of wire cores (2), characterized in that: The lifting belt body (1) is integrally molded with thermoplastic polyurethane. The lifting belt body (1) is fully covered on the outside of a plurality of wire cores (2). The plurality of wire cores (2) are centrally located inside the lifting belt body (1), and the plurality of wire cores (2) are arranged at equal intervals inside the lifting belt body (1). The core (2) is made of galvanized steel wire with a diameter of 4mm.

2. The high-load oil drilling hoisting belt according to claim 1, characterized in that: Several of the wire cores (2) are located at the thickness center of the lifting belt body (1).

3. The high-load oil drilling hoisting belt according to claim 2, characterized in that: The tensile strength of a single galvanized steel wire shall not be less than 18000N.

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