缅甸D区块复杂地质条件下优快钻井技术  

Fast Drilling Technology for Block D in Myanmar with Complex Geological Conditions

作　　者：梁建挺[1] 卢运周[1] 徐济银[1] 

机构地区：[1]中国石化国际石油勘探开发有限公司,北京100083

出　　处：《石油钻探技术》2010年第5期22-25,共4页Petroleum Drilling Techniques

摘　　要：缅甸D区块的复杂地质状况给钻井作业带来了很大的困难和挑战,其中井斜、井漏、井涌和井塌是该区块钻井过程中存在的主要问题。对缅甸D区块钻井作业的特点和难点进行了详细分析,从利用缅甸D区块高陡构造的自然造斜规律优化调整井位及井眼轨迹、优化钻具组合、钻头选型方面给出了可行的技术方案,并提出了解决软泥岩泥包牙轮钻头及解决井壁稳定的技术措施。这些技术在Patolon-1井、Yagyi-1井、Patolon-2井和Yagyi-1X井进行了应用,取得了很好的效果,机械钻速明显提高,逐渐形成了适合缅甸D区块复杂地质条件的优快钻井技术,较好地解决了缅甸D区块高陡构造井斜控制困难、井壁稳定性差、机械钻速慢的问题。The complex geological conditions in Block D of Myanmar induced great difficulties and challenges,among which inclination,lost circulation,well kick and well collapse are the main problems.The characteristics and challengers of drilling operation in Block D of Myanmar were analyzed.A feasible technique solution was proposed using deep structures’ natural laws of optimal adjustment to adjust well location,well trajectory,BHA optimization,and drill bit selection.The technique measures to solve soft mudstone ball up roller bit and wellbore stability were proposed.All these techniques were used in Well Patolon-1,Well Yagyi-1,Well Patolon-2 and Well Yagyi-1X.The results are good and the drilling speeds are improved.The drilling technique suitable for complex geological conditions of Block D of Myanmar was formed.The problems of difficulty in well deviation control in deep structure in Block D,poor well bore stability and low drilling speed were solved.

关 键 词：高陡构造 井斜 井塌 井漏 井溢流 优快钻井 缅甸D区块 

分 类 号：TE249[石油与天然气工程—油气井工程]