MEASURES TO PREVENT AND COMBAT COMPLICATIONS IN THE OPERATION OF HIGH-VISCOSITY OILS OF WESTERN KAZAKHSTAN
Togasheva A. Bayamirova R. Sarbopeyeva M. Bisengaliev M. Khomenko V.L.
2024National Academy of Sciences of the Republic of Kazakhstan
News of the National Academy of Sciences of the Republic of Kazakhstan, Series of Geology and Technical Sciences
2024#1Issue 463257 - 270 pp.
During the operation of wells, asphalt-resinous deposits, with a decrease in reservoir temperature and oil degassing in the bottom-hole zone of the well, the filtration characteristics deteriorate. As a result, the flow rates of wells decrease, their normal operation is disrupted, and operating costs increase. To restore the productivity of producing wells, the optimal method is to treat the bottom-hole zone with a hydrocarbon composition having a high solvent capacity with respect to resins and asphaltenes. The article considers the issue of stabilization of oil production for a short period. An assessment of the technological effectiveness of the use of a salt deposition inhibitor on the ground equipment of the deposit is given. Installation of pre-discharge of water (IPDW)-1.2; Oil preparation and pumping Shop (OPPS) and Marine Pumping Station (MPS)-4 shock dosage of 200 g/ton three times a month. Weekly determination of the content of sulfate-reducing bacteria (SRB) in water. Monthly determination of hydrogen sulfide content in gas. At the same time, it was noted that the use of pentane-hexane fraction technology gives the following effect-cleaning of underground equipment, production column and the trunk of producing wells from asphalt-resin-paraffin deposits and technologies with an emulsion of complex action and a water-hydrocarbon emulsion, which ensure the removal of deposits from the bottom-hole zone of the formation, as well as the use of a viscoelastic composition based on polyacrylamide, allow to intensify oil production, reduce sampling along the way-extracted water.
asphalt-resin-paraffin deposits , bactericide , inhibitor , paraffin deposits , salt deposits
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Caspian state university of technologies and engineering named after S. Yessenov, Aktau, Kazakhstan
Atyrau University of Oil and Gas, Atyrau, Kazakhstan
Dnipro University of Technology, Dnipro, Ukraine
Caspian state university of technologies and engineering named after S. Yessenov
Atyrau University of Oil and Gas
Dnipro University of Technology
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