说明：  石油大学油藏工程毕业设计的计算工具,用此工具几秒钟就完成平时需要20天的计算量.懒得做毕业设计的学生有福了.
(Graduated from University of Petroleum reservoir engineering design tool, using this tool a few seconds to complete the usual 20-day calculation. Too lazy to do graduate design students blessed.)