Mechanical parameters of drilling as factors of operational detection of high pressure zones

UDK: 622.244.5

DOI: 10.24887/0028-2448-2026-2-13-16

Key words: well drilling, abnormally high reservoir pressure, accidents and complications, operational detection, operational detection method, operational detection systems

Authors: B.S. Aghayev (Institute of Information Technology, the Republic of Azerbaijan, Baku); M.Ya. Abdullayeva (Azerbaijan State Oil and Industrial University, the Republic of Azerbaijan, Baku)

The article analyzes methods and technologies for assessing abnormal reservoir pressure and operational detection of abnormally high pressure zones when drilling oil and gas wells. Prevention of accidents and complications by such zones detection is assessed as one of the main methods to improve the efficiency of oil work. Methods for abnormal reservoir pressure detection, as well as signs used for this purpose, are systematized and classified. The advantages of the developed methods are substantiated, which are based on the dependencies between the technical parameters of drilling. A brief chronology of the creation and improvement of this class of methods is noted. A method included in this group of operational detection is proposed which also enables calculation of weighted mud density to counteract abnormal pressure. The method is based on the principle of mathematical calculation of the dependence of the mechanical drilling speed on a number of other mechanical drilling parameters. A brief summary of the principle of detection, the functional blocks of the system and the operation of the system based on this method is given. An algorithm for the operation of the system was developed. Based on this algorithm, a control program was written in the C++ programming language. The operability of the system was tested by laboratory experiments based on the method of computer simulation.

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