联30-1定向井钻井技术

DIRECTIONAL DRILLING TECHNOLOGY FOR LIAN 30-1

吴波 朱爱来 肖曙东 枚新民 周高鹏

Wu Bo Zhu Ailai Xiao Shudong Mei Xinmin Zhou Gaopeng

江苏石油勘探局钻井处, 江苏江都 225261 新疆石油管理局, 新疆克拉玛依 834000

联30- 1定向井的目标点位于京杭大运河底,受地面条件的限制,该井设计为1口水平位移达2108.73m的定向井。采用ZJ45钻机及常规定向井施工技术进行施工,配备了双立管、高频线性振动筛、双离心机等设备,优化了井身结构、井身剖面及固井设计,应用了有线随钻、无线随钻、导向钻具、倒装钻具、复合金属离子聚合物防塌钻井液、PDC钻头钻进等先进的钻井技术,顺利完成了钻井任务。该井实钻斜深3590m,垂深2762.56m,最大井斜角51.10°,钻井周期47d,全井无事故、复杂情况发生。联30- 1井的钻井实践证明,只要技术措施得当,利用常规的钻井技术和设备,能够完成水平位移小于2500m的定向井施工。

Lian 30-1 is a directional well with a designed horizontal displacement of 2108.73m, and its target is located at the bottom of Jinghang Channel. ZJ45 rig and conventional directional drilling technologies were used, with such equipment as dual stand pipe, high-frequency linear shale shaker, dual centrifuges equipped. Casing program, well profile and cementing design were optimized, and such advanced drilling technologies as wired MWD, wireless MWD, steering drill, reversed drill string, composite metal ionic polymer drilling fluid for sloughing control, PDC bit were also applied. This well was successful drilled, with its total measured depth drilled to 3590 m and TVD to 2762.56 m, max. inclination is 51.10° and drilling period of 47 days, and no drilling accidents or troubles were encountered. The drilling practice of Lian 30-1 proved that the conventional drilling technology and equipment is capable of drilling directional well with horizontal displacement of less than 2500 m, as only as proper techniques are conducted.

10.3969/j.issn.1000-7393.2004.03.006