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连续油管射孔及层间分隔在Re-sak气田加密井中得到了应用。该气田是马来西亚国家勘探开发公司开发的气田之一。自Resak气田开发以来,应用连续油管进行了大量的加密井射孔作业,但是作业成功率很低,其原因在于储藏地层压力和井底温度较高,CO2、H2S含量高,洗井时采取了不恰当的清洗措施,导致了作业风险及作业难度的增加。在找到恰当的设计方案和作业步骤之前,对几个失败实例进行了分析和总结,建立了连续油管力学模型用于确定射孔枪系统是否能够安全、顺利地下入目的层。本文也提到了如何选择恰当的层间分隔方法,以便在恶劣的井眼条件下为未来的生产需要提供足够的封隔。这些研究结果为攻克作业中的难题及满足生产需求提供了依据。
Coiled tubing perforation and interlaminar separation were applied in the Re-sak gas well. This gas field is one of the fields developed by Malaysian National Exploration and Development Corporation. Since the development of the Resak gas field, coiled tubing has been used for a large number of perforating wells, but the operating success rate is very low due to high reservoir pressure and bottomhole temperature, high CO2 and H2S contents, Improper cleaning practices have led to increased operational risk and difficulty in operation. Prior to finding the right design and operating procedures, several failure cases were analyzed and summarized. A coiled tubing mechanical model was established to determine if the perforating gun system could be safely and successfully lowered into the target formation. This article also mentions how to choose the right layer separation method to provide adequate containment for future production needs under harsh hole conditions. These findings provide the basis for tackling operational problems and meeting production needs.