摘要
针对冀中坳陷饶阳凹陷蠡县斜坡西柳区块地层岩性特点,结合实验并通过钻井实践,形成并应用了聚磺润滑防塌钻井液。现场应用表明,该钻井液具有较强的润滑性、抑制性和防塌能力,摩阻系数低,油层保护效果好,且流变性能易于调整控制。在该区块已应用该钻井液完成23口井,各井钻井施工均正常,完井作业顺利,无一口井发生卡钻事故,平均井径扩大率为8.51%。该钻井液在该区块的应用取得了良好的技术效益。
A polymer sulfonate inhibitive drilling fluid was successfully used in Block Xiepoxiliu in County LI(of Hebei Province).This fluid has good lubricity and inhibitive capacity,and easy-controllable rheology.Twenty three wells have been completed using this fluid,and no downhole troubles were encountered.Average percent borehole overcut was only 8.51%.
出处
《钻井液与完井液》
CAS
2009年第4期72-74,共3页
Drilling Fluid & Completion Fluid
关键词
聚磺润滑防塌钻井液
钻井液配方
润滑性
抑制性
定向井
长裸眼
冀中油田
Polymer sulfonate inhibitive drilling fluid
Drilling fluid formulation
Lubricity
Inhibitive capacity
Directional well
Long openhole
Jizhong Oilfield
