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川东开江地区作为重点勘探区块以来，由于地层的复杂性，第一轮探井承受了较大风险。文章就钻井工程在高陡构造带所遇地层破碎垮塌、长裸眼段压力系统的压力梯度变化导致的喷漏以及高压高产高含硫所诱发的井喷、钻具脆断、卡钻等三大主要难点进行了分析，通过对黄龙４井、云安４—１井等几口难度较大的复杂井的分析，有针对性地提出了川东新区下一轮探井钻井技术应侧重的几个方面。重点强调钻井设计要根据井下已经变化了的情况进行跟踪修改（或工程再设计），井身结构、堵漏治漏以及强化专职技能人员队伍等。
Since the Kaijiang area in eastern Sichuan was a key exploration area, due to the complexity of strata, the first round of exploratory wells has suffered a greater risk. In this paper, the three major major causes of blowout caused by the collapsing and collapsing of the drilling formation encountered in the steep tectonic belt, the pressure gradient caused by the pressure system in the long-naked-eye section and the blowout caused by the high-pressure high-yield and high sulfur content The difficulties were analyzed. Based on the analysis of several difficult complicated wells such as Huanglong 4 and Yunan 4-1, some aspects that should be emphatically focused on the next round of exploration drilling technology in East Sichuan New Area . The emphasis on drilling design should be based on changes in the underground has been tracked changes (or re-engineering), well structure, plugging leakage and strengthen the full-time technical staff.