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Continuous umbilical cable with limited inner clip and manufacturing method thereof
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A manufacturing method and coiled tubing technology, which can be used in drilling pipes, casings, earthwork drilling, etc., can solve problems such as cable breakage, achieve corrosion resistance, and have broad application prospects
Active Publication Date: 2018-11-23
HEBEI HUATONG WIRES & CABLES GRP CO LTD +1
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Problems solved by technology
Among them, the problem that the cable will break when the coiled tubing is long is not raised
Method used
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Embodiment 1
[0063] The chemical composition of the limit inner card and the steel strip is: C: 0.1%, Cr: 1.2%, Ni: 0.72%, Mo: 0.32%, V: 0.11%, Nb: 0.05%, B: 0.034%, P: 0.015%, S: 0.008%, and the rest are Fe and unavoidable impurities.
Embodiment 2
[0065] The chemical composition of the limit inner card and the steel strip is: C: 0.11%, Cr: 1.1%, Ni: 0.7%, Mo: 0.3%, V: 0.1%, Nb: 0.06%, B: 0.032%, P: 0.015%, S: 0.009%, and the rest are Fe and unavoidable impurities.
Embodiment 3
[0067] The chemical composition of the limit inner card and the steel strip is: C: 0.12%, Cr: 1%, Ni: 0.71%, Mo: 0.3%, V: 0.12%, Nb: 0.05%, B: 0.035%, P: 0.016%, S: 0.01%, and the rest are Fe and unavoidable impurities.
[0068] The preferred preparation process is as follows: first, the above components are smelted according to the corresponding mass percentage and cast into a slab; second, the slab is heated to 1236°C, and the holding time is 2.0 min / mm, depending on the thickness of the slab; Third, the final rolling temperature control range is 792°C, and the temperature is kept for 15 minutes; fourth, quenching is carried out after heating to 1024°C; fifth, high temperature tempering is carried out at 664°C; sixth, natural cooling in air. The steel strip after the above heat treatment not only has excellent welding performance, but also has excellent ductility and plasticity, which can greatly improve the service life of the coiled tubing.
[0069] The steel strip fed fr...
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Abstract
The invention relates to a coiled tubing cable with limiting inner clamps and a manufacturing method thereof. A cable is arranged in a coiled tubing. Clamped clamping sleeves are arranged outside the cable at certain intervals. The two ends of each clamping sleeve are located among the corresponding limiting inner clamps. The limiting inner clamps are welded to the inner wall of the coiled tubing. The clamping sleeves are made of rigid or flexible materials, in interference fit and clamped with the surface of the cable. When the coiled tubing cable is used, on one hand, most of self-weight of the cable can be borne through the limiting inner clamps, and on the other hand, it can be basically guaranteed that the cable and the coiled tubing keep the basically identical length, and when the coiled tubing is bended or straightened, the cable is not liable to snap. The coiled tubing cable and the manufacturing method thereof are applicable to the technical field of petroleum engineering.
Description
technical field [0001] The invention relates to a continuous umbilical cable with a limiting inner clip and a manufacturing method thereof, which is suitable for the technical field of petroleum engineering. Background technique [0002] Coiled tubing, also known as flexible tubing, can be as long as 10,000 meters in one roll, and can replace conventional tubing for many operations. Coiled tubing operation equipment has the characteristics of pressure operation and continuous lifting. The equipment is small in size, fast in operation cycle and low in cost. Since the 1990s, coiled tubing technology has developed by leaps and bounds. The coiled tubing operation device has been hailed as the "universal operation machine", which is widely used in workover, drilling, completion, logging and other operations in oil and gas fields, and runs through the whole process of oil and gas production. Taking well logging as an example, coiled tubing logging technology is a new technology ...
Claims
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Application Information
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