摘要
近几年来中国石化集团公司在山东北地区的油气勘探取得了重大突破,但该地区地层可钻性差,机械钻速低,钻井施工周期长,影响了该地区的勘探开发速度。为此,中国石化南方分公司在该地区上部陆相地层采用了空气钻井技术,机械钻速有了很大的提高,但在空气钻井结束时循环介质仍要由空气转换为钻井液,因此钻井液的转换非常关键,钻井液体系的选择、钻井液的配制、钻井液的性能至关重要。介绍了川东北地区上部地层的岩性特点,钻井液技术难点,针对空气钻井的特点选择了合适的钻井液体系,优化了钻井液配方,现场应用表明,所选择的钻井液体系能满足川东北地区空气钻井的后续施工。
Although the Sinopec has been made a great breakthrough in the exploration for North-west area of Sichun during the last few years, problems of poor formation drillability, low penetration rate and long drilling cycle have seriously obstructed the further exploration in this area. In order to speed up the exploration in this area, the South Branch of Sinopec adopted air drilling techniques to drill the upper terrestrial formation and achieved a remarkable penetration rate. When the air drilling ended, the circulating medium must transform to drilling mud. The mud system selection, mud mixing and mud properties are of most importance for the transformation. The author described the Lithology, mud difficulties, mud system selection, mud formula and well site application of air drilling practices in North-west area of Sichun in the paper. Field applications show that selected drilling fluid can meet demands for upcoming air drilling operations in the East Sichuan area.
出处
《石油钻探技术》
CAS
北大核心
2006年第4期12-15,共4页
Petroleum Drilling Techniques
关键词
气体钻井
聚合物钻井液
防塌钻井液
清溪1井
gas drilling
polymer drilling fluid
anti-sloughing drilling fluid
Qingxi 1 Well
