Development and implementation of measures focused on increasing the time between repairs for the artificial lift equipment in Irkutsk Oil Company

UDK: 622.276.53:65.011.4
DOI: 10.24887/0028-2448-2020-9-55-58
Key words: time between the repairs, serviceability, complications during the operation of the ESP, improving the durability of the ESP units, information systems for oil production management
Authors: R.M. Salikhov (Irkutsk Oil Company LLC, RF, Irkutsk), I.I. Kostyuk (Irkutsk Oil Company LLC, RF, Irkutsk)

The formed organizational and technical system for the operation of a artificial lift is fundamental for effective oil production and success of the enterprise as a whole. In 2015, new technical management of Irkutsk Oil Company faced the need to change the approaches for process organization. The relatively short period of field exploitation and absence of traditions of its own for large-scale oil production in Eastern Siberia – all these required adaptation and implementation of set of actions in order to significantly increase the time between repairs and serviceability of downhole pumping equipment.

The paper presents the experience of Irkutsk Oil Company in its core asset, the Yaraktinskoye oil-gas-condensate field, as an example. The existing geological and technical conditions are presented; factors complicating oil production are described, as well as data on time between repairs and serviceability before implementing the set of measures to increase them. The article lists the organizational measures that were taken such as reconsideration of the organizational structure of the subdivisions responsible for the operation of the well stock, updating and expanding the stock of internal regulatory methodological documents, and measures for improving the personnel qualification. Some measures to improve durability were highlighted such as the use of thermal inserts in the cable lines of the ESP, the use of special fasteners, shafts and spline couplings of increased power, equipping the stock with control stations with a frequency drive and telemetric systems, etc. Special emphasis was put on the topic of operation in difficult conditions. Some measures to deal with asphaltene-resins-paraffin deposits, inorganic halite and gypsum deposits, the removal of mechanical impurities, and high gas-oil ratio of produced oil are listed. The introduction of advanced information products for monitoring and managing well stock operation is an essential part of the implemented activities. The implementation of the described set of measures made it possible to increase the time between repairs from 318 to 857 days.

The formed organizational and technical system for the operation of a artificial lift is fundamental for effective oil production and success of the enterprise as a whole. In 2015, new technical management of Irkutsk Oil Company faced the need to change the approaches for process organization. The relatively short period of field exploitation and absence of traditions of its own for large-scale oil production in Eastern Siberia – all these required adaptation and implementation of set of actions in order to significantly increase the time between repairs and serviceability of downhole pumping equipment.

The paper presents the experience of Irkutsk Oil Company in its core asset, the Yaraktinskoye oil-gas-condensate field, as an example. The existing geological and technical conditions are presented; factors complicating oil production are described, as well as data on time between repairs and serviceability before implementing the set of measures to increase them. The article lists the organizational measures that were taken such as reconsideration of the organizational structure of the subdivisions responsible for the operation of the well stock, updating and expanding the stock of internal regulatory methodological documents, and measures for improving the personnel qualification. Some measures to improve durability were highlighted such as the use of thermal inserts in the cable lines of the ESP, the use of special fasteners, shafts and spline couplings of increased power, equipping the stock with control stations with a frequency drive and telemetric systems, etc. Special emphasis was put on the topic of operation in difficult conditions. Some measures to deal with asphaltene-resins-paraffin deposits, inorganic halite and gypsum deposits, the removal of mechanical impurities, and high gas-oil ratio of produced oil are listed. The introduction of advanced information products for monitoring and managing well stock operation is an essential part of the implemented activities. The implementation of the described set of measures made it possible to increase the time between repairs from 318 to 857 days.


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