三塘湖致密油长水平段水平井钻井技术

Drilling technology for horizontal well with long horizontal sectionin Santanghu tight oil reservoir

钱峰 杨立军

QIAN Feng YANG Lijun

长江大学石油工程学院，湖北荆州　434023 吐哈油田公司勘探公司，新疆鄯善　838202 吐哈油田公司工程技术研究院，新疆鄯善　838202

Petroleum Engineering School of Yangtze University, Jingzhou 434023, China Exploration Company of Tuha Oilfield Company, Shanshan 838202, China Engineering and Technology Research Institute of Tuha Oilfield Company, Shanshan 838202, China

三塘湖盆地致密油勘探开发前景广阔，水平井技术是实现该区有效开发的重要手段。从分析三塘湖致密油水平井钻井难点出发，开展了以井身结构优化及剖面设计、个性化钻头优选、低成本高效轨迹控制、提高水平段储层钻遇率及优质高效钻井液等关键技术为核心的攻关研究，形成了适应三塘湖致密油水平井优快钻进的配套技术系列，并在芦101 等5 口井进行了成功推广应用，提速效果显著。

Tight oil exploration in Santanghu Basin enjoys a broad prospect, and horizontal well technology is an important means for effective development of this region. This paper started with analysis of difficulties in horizontal well drilling in Santanghu tight oil formation and carried out research on key techniques such as wellbore configuration optimization and profile design, specific drilling selection, low-cost and high-efficient trajectory control, increasing the encountering rate of reservoirs by horizontal section and quality, and effective drilling fluid, etc. The paper has also developed supporting technique series suitable for optimized fast drilling of tight oil horizontal wells in Santanghu Basin, which has been successfully used in five wells like Well Lu 101 and realized remarkable increase in drilling rate.

10.13639/j.odpt.2014.06.005