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Study on Productivity Prediction of the Horizontal Wells of Casing Perforation Completion and Open Hole Completion

WU Qiang1 LI Hai-tao1 ZHANG Guo-hui2 ZHAO Shu-duo1(1.Southwest Petroleum University,Chengdu 610500;2.The Research Laboratory of Engineering,China Petroleum Exploration and Development Institute,Beijing 100083)  
Horizontal well production forecasting formulas need to consider not only anisotropism and borehole eccentricity,but also the skin factor during drilling and completion process.It must consider the partial penetration and compaction skin factor.Ideal open hole completion and casing perforation completion are derived from the update of the skin factor.All the formulas are proved to be feasible.The study result provides theoretical basis for selecting reasonable horizontal completions to improve single completion productivity and maximize reservoir potential.
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