西南石油大学学报（自然科学版）2012，Vol.34Issue(3)：139-144,6.DOI:10.3863/j.issn.1674-5086.2012.03.021
油基钻井液润湿剂评价
Evaluation the Wettability of the Wetting Agent Using in Oil-base Drilling Fluid
吴超 1田荣剑 2罗健生 2夏小春 2王德明3
作者信息
- 1. 中海油田服务股份有限公司,河北 三河065201
- 2. 中海油服油田化学研究院,河北三河065201
- 3. 中海油田服务股份有限公司油田化学事业部,广东深圳518067
- 折叠
摘要
Abstract
The surface of weighting agent in oil base drilling fluid is often hydrophilic. It disperse in a water-in-oil emulsion, will directly influence the drilling fluid static density. At the same time, the hydrophilic clay particles in the formation tend to combine with water particles aggregation when penetrating the oil base drilling fluid will. Thereby it will have an effect on the rheological properties of drilling fluids. To solve the above problem, we also study the evaluation method of selecting wetting agents that prevent the aggregation. It can be known by analysis that the barite's sagging volumes are different in several oil phases with different wetting agents. The wettability of large numbers of narrow passages forming inside of barite powder during sagging will affect the barite's sagging volumes. If the wetting agents wettability is stronger, the barites sagging volume will be less because less oil phase is bounded inside barite powder. On the contrary, the barite's sagging volume will be more. So the barites sagging can evaluate the wetting agent's wettability, which is handy and convenient for appraising the wetting agent.关键词
润湿性/重晶石/沉降/接触角/评价Key words
wettability/ barite/ sagging/ contact angle/ evaluating分类
能源科技引用本文复制引用
吴超,田荣剑,罗健生,夏小春,王德明..油基钻井液润湿剂评价[J].西南石油大学学报（自然科学版）,2012,34(3):139-144,6.
