Use of low-mineralized water for displacing oil from clay productive field formations

The X-ray structural analysis of clay cement composition in the Jurassic sediments of the Shaim oil and gas region of Western Siberia carried out before and after the experiments identified that qualitative and quantitative clay cement composition does not change, i.e. water of the aquifer interacti...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2019-06, Vol.560 (1), p.12202
Main Authors: Stenkin, A V, Kotenev, Yu A, Mukhametshin, V Sh, Sultanov, Sh Kh
Format: Article
Language:English
Subjects:
Aquifers
Clay minerals
Composition
Crystal lattices
Permeability
Sediments
Structural analysis
Swelling
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Summary:The X-ray structural analysis of clay cement composition in the Jurassic sediments of the Shaim oil and gas region of Western Siberia carried out before and after the experiments identified that qualitative and quantitative clay cement composition does not change, i.e. water of the aquifer interacting with the fine rock component does not affect the injection process. Slight swelling of clay minerals does not decrease permeability due to the small amount of minerals with a moving crystal lattice. It was established that formation water does not cause swelling of clay rocks, i.e. it does not have a negative effect on the injection process. Decreasing permeability is due to the deposition of salts clogging filtration channels.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/560/1/012202