On the creation of a Russian accelerometer for borehole directional survey tasks

UDK: 622.241
DOI: 10.24887/0028-2448-2021-8-30-35
Key words: inclinometer, accelerometer, pendulum, shock loads, vibrations, temperature, sensing element, Russian manufacturer
Authors: O.V. Zhdaneev (Russian Energy Agency of the Ministry of Energy of the Russian Federation), A.V. Zaitsev (Russian Energy Agency of the Ministry of Energy of the Russian Federation), S.F. Konovalov (Bauman University, RF, Moscow), A.E. Semenov (Bauman University, RF, Moscow; Serpukhov Plant Metallist JSC, RF, Serpukhov)

The article provides information on the development of accelerometers for directional surveying of oil and gas wells capable of operating under dynamic influences (shock, vibration and temperature) arising during the drilling process. The requirements for downhole telemetry equipment used in the process of drilling are analyzed in the context of the peculiarities of the operation of downhole inclinometers. The design of accelerometers for inclinometric measurements, produced abroad, as well as designs of similar devices of domestic development, is considered. The analysis of world trends in the development of accelerometers for use in inclinometers of downhole equipment is carried out. The history of the creation of Russian accelerometers of the compensation type is briefly described, the design features of accelerometers designed to operate under conditions of simultaneous impact of shocks up to 1000g with a pulse duration of 5 ms, vibrations up to 30g and temperatures above 150 ° C are also considered, which are used in downhole equipment in the process of drilling oil and gas wells. The necessity of organizing the serial production of Russian accelerometers by Russian instrument-making plants is also substantiated. Recommendations are given for organizing the production of domestic accelerometers suitable for use as a replacement for out-of-order foreign accelerometers, which are operated in Russian oil and gas fields both in domestic downhole equipment and in imported ones. The current situation on the creation of Russian accelerometers for downhole equipment operating in harsh operating conditions is highlighted, as well as the directions for creating Russian accelerometers with a classical architecture and accelerometers (also of a compensation type) manufactured using MEMS technology, which today have no analogues in the world.


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