发明公开
- 专利标题: USE OF GRANITE WASTE POWDER IN LIGHTWEIGHT OILWELL CEMENT SYSTEMS; STRENGTH ANALYSIS
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申请号: US17900360申请日: 2022-08-31
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公开(公告)号: US20230287257A1公开(公告)日: 2023-09-14
- 发明人: Salaheldin ELKATATNY , Stephen ADJEI
- 申请人: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
- 申请人地址: SA Dhahran
- 专利权人: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
- 当前专利权人: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
- 当前专利权人地址: SA Dhahran
- 主分类号: C09K8/48
- IPC分类号: C09K8/48 ; C04B18/12 ; C04B14/18 ; C04B14/30 ; C04B14/10 ; C04B14/06 ; C04B22/12
摘要:
A method for treating a well in a hydrocarbon-producing subterranean production zone. The method for treating well-producing hydrocarbons from a subterranean production zone includes dry mixing a granite waste powder (GWP) in a form of rock aggregates and a cement to form a mixture. Then the mixture is added to the cement composition containing water, pre-hydrated sodium bentonite, calcium chloride, a dispersant, and an alcohol-based defoamer to form a cement slurry. The cement slurry is prepared at a density of from 13.5 pounds per gallon (ppg) to 14.5 ppg and contains the GWP in a range of from 5 wt. % to 20 wt. % of the cement slurry. 10 wt. % to 15 wt. % perlite is added into the cement slurry to form a ternary blend which is cured and then the cured product is injected into the well to seal the well at the subterranean production zone.
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