圈闭含油气性评价二元灰色关联度模型及其应用

提出并分析了二元灰色关联度、差异信息、差异信息的熵、差异信息量、各评价参数的信息量权等模型和概念.应用上述二元关联度模型和信息量权,在新疆托库研究区圈定了两个Ⅰ级含油气性有利区,两个Ⅱ级有利区,一个Ⅲ级有利区.据有关资料,已钻获工业油气流的沙45井位于有利区.在雅克拉测区的验证计算取得很好效果,已知油气井全部落于含油气有利区,而无油气井则落于含油气不利区.理论分析和应用实例都表明信息量权优于人为主观评定权、极差权、显著性权.与一元关联度相比,应用二元关联度评价圈闭含油气性,具有更大的科学性、可靠性和实用性.图4,表3,参8.

Binary grey correlative grade about the evaluation of oil-gas in trap and its application

A certain number of new models and concepts are put forward and analyzed in this paper. They are the grey correlative grade of binary,difference information and information quantity weight etc. Applying above-mentioned models and concepts ,two 1.grade the beneficial area of oil-gas, beneficial areas of two 2. grade and one 3. grade have been ascertained in research area in Tuoku Region,Tarim Basin,China. According to concerned material, Sha 4 well getting the industry oil-gas currentis located in the beneficial area .The proving calculation is gained successfully in the Yakela Region,Tarim Basin, and the known oil-gas well completely fall to the beneficial area of oil-gas, but the dry well is located in the unfavorable area. Theory analysis and the application example all indicates:information quantity weight is superior to artificial subjective evaluation weight,maximum difference weight and notable property weight. Binary grey correlative grade is superior to monadic correlative grade. Therefore, science and reliability and practical property of the evaluation of oil-gas has been greatly raised.4figs.,3tabs.,8refs.