【摘要】 利用保角变换、镜像反映和势叠加原理,对水平井与直井联合布井的七点法井网进行了理论研究,推导出了水平井方位可以任意变化的七点法井网产能公式。对水平井产能影响因素进行了分析,得出了水平井方位和水平井无因次长度对水平井无因次产量的影响规律。结果对水平井在油田开发中的实际应用,特别是对水平井方位可以任意变化的七点法井网产能预测提供了理论基础。更多还原

【Abstract】 Based on the theories of Conformal Transformation Method,Mirror Image Method and Superposition Principle,the production behaviors of horizontal well in combined seven-spot patterns of horizontal and vertical wells were studied,and the productivity formulas of horizontal well with arbitrary orientation were derived.The influence of some factors on dimensionless productivity,such as orientation angle and dimensionless length of horizontal well,were investigated too.The results summarized by the paper may provide the theoretical basis for the practical application of horizontal well in oil development,especially for the productivity estimation of horizontal well with arbitrary orientation in combined seven-spot patterns of horizontal and vertical wells.更多还原