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

International Conference on Mechanical Engineering, Automation and Control Systems 2018

Stenkin, A.V.^1 ; Kotenev, Yu.A.^2^3 ; Mukhametshin, V.Sh.^4 ; Sultanov, Sh.Kh.^2^3

TPE 'Urayneftegaz' LLC 'LUKOIL-Western Siberia', 116a, Lenin St., Khanty-Mansi Autonomous Area, Uray, Tyumen region, Yugra

628285, Russia^1

Ufa State Petroleum Technological University, 1, Kosmonavtov st., Ufa, Republic of Bashkortostan

450062, Russia^2

Academy of Sciences of the Republic of Bashkortostan, 15, Kirova St., Ufa, Republic of Bashkortostan

450008, Russia^3

Ufa State Petroleum Technological University, Branch of the University in the City of Oktyabrsky, 54a, Devonskaya St., Oktyabrsky, Republic of Bashkortostan

452607, Russia^4

关键词: Cement compositions;    Formation water;    Injection process;    Jurassic sediments;    Mineralized water;    Oil and gas;    Western siberia;    X ray structural analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/560/1/012202/pdf
DOI  :  10.1088/1757-899X/560/1/012202

来源: IOP

【 摘 要 】

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.