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定北区块位于苏里格气田西南方向,是中石化华北分公司承担开发的区块。存在机械钻速较慢,钻井周期较长等问题,严重制约了该区块的开发进度。为了加快开发进度,提高开发效率,突出技术在推动生产发展方面的作用,特针对目前该区块钻井中面临的问题,展开研究,分析其技术瓶颈,借鉴苏里格气井的井身结构、钻具组合、钻头选型、钻井参数等,提出针对性的解决方案;并进行现场试验。提速方案效果明显,使得定北区块钻井速度明显提高,钻井周期缩短50.2%,机械钻速提高了48%。最终形成一套能够解决该区块目前钻井速度慢,开发成本高的问题,能够为高效开发定北区块提供一套有效的钻井方案。
Dingbei block located in the southwest direction of the Sulige gas field, North China Petrochemical Company is committed to the development of the block. There are problems such as slow penetration rate and longer drilling cycle, which seriously hampered the development progress of this block. In order to speed up the progress of development and improve the efficiency of development, highlighting the role of technology in promoting production development, aiming at the problems in drilling in this block at present, the paper studies and analyzes its technical bottlenecks, draws lessons from the well structure of Sulige gas well, With the combination of bit selection, drilling parameters, etc., put forward targeted solutions; and field experiments. The speed-raising scheme has obvious effect, making the drilling speed of Dingbei block obviously improved, the drilling cycle shortened by 50.2% and the penetration rate increased by 48%. The result is a set of problems that can solve the problem of slow drilling and high development cost in this block and provide an effective drilling program for the efficient development of the Dingbei block.