Investigation of the Process of Mud Filtrate Invasion from an Open Wellbore into a Fresh Water
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Ivano-Frankivsk National Technical University of Oil and Gas, Carpathian 15, 76000, Ivano-Frankivsk, Ukraine
Publication date: 2021-07-01
Corresponding author
Liubov Poberezhna
Ivano-Frankivsk National Technical University of Oil and Gas, Ivano-Frankivsk, Ukraine
Ivano-Frankivsk National Technical University of Oil and Gas, Ivano-Frankivsk, Ukraine
Ecol. Eng. Environ. Technol. 2021; 4:53–65
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ABSTRACT
While developing hydrocarbon (oil and gas) deposits, it is necessary to drill into shallow formations of fresh (drinking) water, and this causes the filtrate invasion from the open wellbore into these formations. A mathematical model of this process was created; an analysis of the influence of the identified by the process features filtration zones was performed, and it was shown that the zones of the mud crust and interstitial colmatation are dominant. The filtrate invasion can significantly impair the quality of fresh water and cause environmental damage.
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