DOI: 10.18503/1995-2732-2020-18-1-49-54
Abstract
In the course of time, the need for such resources as oil, gas and gas condensate is constantly growing, leading to an increase in the depth of wells, the use of more complex structures (transition from vertical shafts to inclined and horizontal ones with a length of over 2000 m), as well as an increase in a share of mining from hard-to-recover reserves. One of the most promising methods for exploiting, developing and maintaining a well is a method based on the use of a string of flexible flush-joint steel tubes, also known as the coiled tubing technology. In order to assess the state of production of steel products for coiled tubing, the authors analyzed the technical requirements of Russian and foreign manufacturers. A guarantee of a trouble-free operation of coiled tubing in severe operating conditions is the use of structural high-strength low-alloy steel with high strength and impact toughness, high flex life, as well as increased resistance to atmospheric corrosion. The main foreign manufacturers of coiled tubing are the USA, Canada and China. In Russia coiled tubing is produced by ESTM plant (the city of Uzlovaya). Russian and foreign manufacturers set similar requirements for a level of mechanical properties of semi-finished rolled products for coiled tubing, which can be achieved by using a scheduled chemical composition and special parameters of thermomechanical processing.
Keywords
Coiled tubing, flush-joint tubing, technical requirements, coiled tubing technology, import substitution.
For citation
Poletskov P.P., Alekseev D.Yu., Kuznetsova A.S., Nikitenko O.A. Analysis of Technical Requirements for Semi-Finished Rolled Products for Coiled Tubing. Vestnik Magnitogorskogo Gosudarstvennogo Tekhnicheskogo Universiteta im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Technical University]. 2020, vol. 18, no. 1, pp. 49–54. https://doi.org/10.18503/1995-2732-2020-18-1-49-54
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