Electromagnetic salvage system and method
An electromagnetic and overshot technology, which is applied in the direction of earthwork drilling, wellbore/well parts, etc., can solve problems such as difficulty in fishing for falling objects, and achieve the effect of ensuring fishing efficiency
Active Publication Date: 2022-04-29
SOUTHWEST PETROLEUM UNIV +1
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Problems solved by technology
[0002] Along with people's growing demand for high-quality life, the society's demand for energy is increasing, but at the same time, the difficulty of mining fossil energy has also increased with more stringent geological, storage, production, and safety conditions. For example, the drilling technology in the exploitation of oil and natural gas resources on land also puts forward higher requirements. The drilling technology often needs to consider the drilling technology of horizontal wells and ultra-deep wells, and metal debris or small metal devices are often produced during the drilling process. 1. A large amount of metal debris suspended or deposited in the well will damage the instruments or tools that are lowered into the well. If it is a vertical well, it can be lowered into a strong magnet for adsorption and salvaged to the ground. However, if it is a horizontal well section, iron filings and Where the litter is deposited, and it is necessary to prevent the adsorbed litter from colliding with the well wall and falling back into the well, which is more difficult than vertical well fishing
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[0040] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.
[0041] Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art w...
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The invention discloses an electromagnetic salvage system and method. The electromagnetic salvaging system comprises a salvaging device which comprises a main body internally provided with a cavity, and a through groove is formed in the wall face of the main body and communicates with the cavity; the electromagnetic adsorption assembly is arranged in the cavity and used for adsorbing an external metal part into the cavity; the bottom collecting cup is provided with a collecting cavity and is detachably connected with the main body, and the collecting cavity is communicated with the chamber; and the pushing assembly is arranged in the cavity, is configured to move towards the bottom collecting cup and is used for pushing the metal parts adsorbed by the electromagnetic adsorption assembly into the collecting cavity for collection. According to the technical scheme provided by the invention, the underground metal falling objects can be efficiently salvaged.
Description
technical field [0001] The present application relates to the technical field of downhole fishing, in particular to an electromagnetic fishing system and method. Background technique [0002] Along with people's growing demand for high-quality life, the society's demand for energy is increasing, but at the same time, the difficulty of mining fossil energy has also increased with more stringent geological, storage, production, and safety conditions. For example, the drilling technology in the exploitation of oil and natural gas resources on land also puts forward higher requirements. The drilling technology often needs to consider the drilling technology of horizontal wells and ultra-deep wells, and metal debris or small metal devices are often produced during the drilling process. 1. A large amount of metal debris suspended or deposited in the well will damage the instruments or tools that are lowered into the well. If it is a vertical well, it can be lowered into a strong m...
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IPC IPC(8): E21B31/06
CPCE21B31/06
Inventor 赵建国方世纪刘清友肖晓华王国荣韩硕王菊梁鹏辉
Owner SOUTHWEST PETROLEUM UNIV