Fillers of plant origin to blocking compositions for well killing
Repair and recovery works in wells of gas and gas condensate fields at the late stage of development are characterized by increased complexity due to the geological and technical situation. High infiltration of traditional well-killing fluids under conditions of high repression promotes the formatio...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | Russian |
| Published: |
North-Caucasus Federal University
2022-09-01
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| Series: | Наука. Инновации. Технологии |
| Subjects: | |
| Online Access: | https://scienceit.elpub.ru/jour/article/view/254 |
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| Summary: | Repair and recovery works in wells of gas and gas condensate fields at the late stage of development are characterized by increased complexity due to the geological and technical situation. High infiltration of traditional well-killing fluids under conditions of high repression promotes the formation of a signiicant zone of their penetration into the formation which sharply worsens the iltration characteristics of the formation and creates a number of intractable problems in the development of wells after repair. The article gives the analysis of properties and search for various materials potentially possessing blocking parameters. The peculiarities of using plant-based fillers to process fluids used in repair work in wells for the purpose of qualitative killing of wells with temporary blocking of the productive formation are considered. The results of the experimental researches showed that the agents-illers based on agricultural waste products make it possible to obtain a foaming system withstanding high pressure drop on the formation capable of blocking the bottomhole zone in the process of killing the well and at low depressions easily removable from the formation, completely retaining its permeability. |
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| ISSN: | 2308-4758 |