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Aerated fluids drilling used in Philippines field to minimize well interference while infill drilling

机译：菲律宾油田中使用的充气流体钻井，可最大程度地减少填充钻井时的井间干扰

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Aerated fluids drilling, though not new in the Philippines, was recently employed to determine if well interference can be minimized, if not eliminated, while drilling within shallow to intermediate depth of an actively producing two-phase zone of a reservoir, more particularly a reservoir in the Leyte Geothermal Production Field, Philippines. Infill drilling activities of PNOC-EDC, the company managing the geothermal field, which utilized blind drilling and cement plugging of loss zones, have lately been adversely affecting production wells in the neighborhood of the well being drilled. Using aerated fluids drilling technology, three new wells were drilled infill at LGPF to assess whether the technology can be employed as a solution to the problem of well interference during infill drilling. An approach that combined underbalanced reservoir drilling and managed pressure drilling techniques was used for the project, with adjustments and corrections made to the procedures employed as circumstances required. The results achieved with the drilling of wells 422D, 315D and 421D in LGPF, especially that from the well interference monitoring program conducted by PNOC-EDC, reveal that aerated fluids drilling technology, by establishing good circulation during drilling even at loss zones, is capable of minimizing well interference during infill drilling.
机译：充气流体钻井，尽管在菲律宾并不新鲜，但最近被用来确定是否可以将井间干扰最小化（如果不能消除的话），同时在活跃生产的储层（尤其是储层）两相区域的浅至中深度进行钻井在菲律宾的莱特地热生产领域。 PNOC-EDC的填充钻探活动是地热领域的管理公司，该公司利用盲区钻井和损失区的水泥堵漏技术，最近对钻探井附近的生产井产生了不利影响。使用充气流体钻井技术，在LGPF钻了3口新的填充井，以评估该技术是否可用于解决填充钻井过程中的井眼干扰问题。该项目采用了将欠平衡油藏钻井和管理压力钻井技术相结合的方法，并根据情况对所采用的程序进行了调整和修正。通过在LGPF中钻422D，315D和421D井获得的结果，尤其是PNOC-EDC实施的井间干扰监测程序所获得的结果表明，通过在钻井过程中甚至在损失区域建立良好的循环，充气钻井技术能够最小化填充钻进过程中的井眼干扰。

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