摘要
塔北地区水平井上部大井眼采用聚合物钻井液体系、下部井段采用聚磺钻井液体系、造斜段及水平段采用聚磺混油钻井液体系。现场应用结果表明,聚合物钻井液体系解决了大井眼携岩问题;聚磺钻井液体系抑制能力、防塌能力、携岩能力强;聚磺混油钻井液体系的携带、悬浮岩屑能力及润滑性更好。这几种钻井液体系满足了钻井工程需要,避免了井下复杂情况的发生。
Different drilling fluid systems have been used in the horizontal well drilling in North Tarim area, more specifically, polymer drilling fluid is used in the top hole of large size, and polysulfide drilling fluid for the lower interval; for the building section and horizontal interval, polysulfide drilling fluid mixed with oil is used. Field using indicates that the polymer drilling fluid is suitable for the large size hole because of its remarkable cuttings removal ability; and polysulfide drilling fluid shows its strong inhibition, anti-slough-ing and good cuttings transportation; while for polysulfide drilling fluid mixed with oil, it has better cuttings removal, suspension and lubricity, which are desirable for horizontal drilling. The use of these drilling fluid systems meet the requirements of drilling engineering, and avoids the downhole troubles.
出处
《钻井液与完井液》
CAS
2000年第5期41-43,共3页
Drilling Fluid & Completion Fluid
关键词
聚合物
水平井
钻井液
定向钻井
配方
塔北地区
polymer mud
directional well
hole stabilizations mud composition
North Tarim
