发明申请
- 专利标题: DRILLING FLUID COMPOSITIONS WITH ENHANCED RHEOLOGY AND METHODS OF USING SAME
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申请号: US15485724申请日: 2017-04-12
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公开(公告)号: US20180223158A1公开(公告)日: 2018-08-09
- 发明人: Hussain AlBahrani , Abdullah Al-Yami , Ali Safran , Abdulaziz Alhelal
- 申请人: Saudi Arabian Oil Company
- 申请人地址: SA Dhahran
- 专利权人: Saudi Arabian Oil Company
- 当前专利权人: Saudi Arabian Oil Company
- 当前专利权人地址: SA Dhahran
- 主分类号: C09K8/20
- IPC分类号: C09K8/20 ; C09K8/03 ; E21B21/00
摘要:
Drilling fluid compositions include a base fluid, at least one additive chosen from an emulsifier, weighting material, fluid-loss additive, viscosifier, or alkali compound, and from 0.1 wt. % to 1 wt. %, based on total weight of the drilling fluid composition, of an ethoxylated alcohol compound having the formula R—(OCH2CH2)7—OH, in which R is a saturated or unsaturated, linear or branched hydrocarbyl group having from 8 to 20 carbon atoms. The base fluid may be an aqueous base fluid. Methods for drilling a subterranean well include operating a drill in a wellbore in the presence of a drilling fluid composition including the base fluid, the additive, and the ethoxylated alcohol compound.