高造斜率旋转地质导向技术在哈得逊油田的应用

Application of rotary geo-steering technology with high build-up rate in Hadson Oilfield

王磊 周波 黎强 苏小飞 张连成 滕鑫淼

WANG Lei ZHOU Bo LI Qiang SU Xiaofei ZHANG Liancheng TENG Xinmiao

中国石油集团钻井工程技术研究院，北京　102206 塔里木油田公司，新疆库尔勒　841000 中国石油大学石油工程教育部重点实验室，北京　102249

CNPC Drilling Engineering and Technology Research Institute, Beijing 102206, China Tarim Oilfield Company, Korla 841000, China Key Laboratory of Education Ministry for Petroleum Engineering, China University of Petroleum, Beijing 102249, China

塔里木油田哈得逊薄油藏埋藏深、构造变化大，水平井钻井井眼轨迹控制困难，传统的旋转导向工具侧钻初期造斜率普遍不足，需使用弯螺杆马达增斜至30°左右后再更换工具，增加了钻井风险与周期。2013 年，该区块应用高造斜率旋转导向工具（PowerDriver Archer RSS）及新一代地质导向技术（Scope 系列），从侧钻点开始旋转导向钻进，在着陆及水平段加装地质导向工具，相比2012 年，水平段平均井深增加214 m，钻井周期缩短36.7 d。在介绍高造斜率旋转导向以及随钻测井技术的基础上，结合现场应用实例分析，认为在哈得逊油藏，全井段旋转导向有利于降低井眼摩阻，节约钻进周期；地层探边及储层评价技术的应用提高了水平井的储层钻遇率，有利于该油藏的规模开采。

The Hadson thin reservoirs in Tarim Oilfield has great burial depth and large structural variations. The wellbore trajectories in horizontal wells are hard to control. The traditional rotary steering tools could not realize enough build-up rate at the early stage of sidetracking, so the bent screw motor was used first to build up hole angle to about 30°, then changed to other tools, which increased drilling risks and drilling cycle. In 2013, the rotary geo-steering tool with high build-up rate (PowerDriver Archer RSS) and a new generation of geo-steering technology (Scope series) were used in this Block, which started drilling with rotary steering from the sidetracking point, and geo-steering tools were added at landing and horizontal sections. Compared with 2012, the well depth in horizontal hole was increased by 214 m in average, and drilling cycle was less by 36.7 d. Based on rotary steering with high build-up rate and logging while drilling, and in conjunction with analysis of field application cases, it was thought that full-hole rotary steering helps reduce hole friction in Hadson reservoir and so save drilling time. The application of formation delineation drilling and reservoir evaluation techniques has improved the reservoir drilling ratio by horizontal wells, which helps large-scale production of this reservoir.

10.13639/j.odpt.2015.03.006