CAJ | 학술논문

依据Gamma函数及Г(x)分布的基本概念，给出了非均质性储层渗透率K的概率密度、分布函数以及基本数字特征的表达式。同时，应用极大似然估计法推导出Г(x)型分布未知参数估计值和k0的解析式。并结合属中低渗透性的临南油田沙三中油层的电测解释资料进行了实例计算，其结果与实际吻合，可作为编制油田开发方案和产能预测的依据。
의거Gamma함수급Г(x)분포적기본개념，급출료비균질성저층삼투솔K적개솔밀도、 분포함수이급기본수자특정적표체식。동시，응용겁대사연고계법추도출Г(x)형분포미지삼수고 계치 화k0적해석식。병결합속중저삼투성적림남유전사삼중유층적전측해석자료진행료실례 계산，기결과여실제문합，가작위편제유전개발방안화산능예측적의거。
According to the basic concept of Gamma function andГ'(x) distribution, this paper gives out some expression including probability density, distribution function and basic numeric characteristic value. Application of the maximum-likelihood es timation method, the paper derives analytic formulae of unknown parameter estimation value and k0. The application of log data of middle of the third segment in linnan oilfield, we calculate its permeability. The result is right. The result pro rides the basis for programming oilfield development plan and forecasting productivity.