摘要
本文基于物质平衡条件和油气产物特征,提出了用单纯形优化方法模拟计算有机质转化过程中油气产量的新方法。应用该方法对Ⅰ、Ⅱ、Ⅲ类干酪根自 R_(?)=0.2%开始,向更高变质程度转化过程中的 CH_4、C_2H_6、C_3H_8、C_4H_(10)、CO_2、H_2S、N_2、H_2O、OIL(油)十种组分的产量进行了模拟计算。通过数学分析,确定了各种产物组分的发生率与母质类型(数值化指数 KTI)和转化程度(R_(?),%)之间的函数关系。与热模拟实验法和热化学动力学计算方法相比,物质平衡优化模拟计算法适用性广,它不仅能够用于有机母质热演化过程中的油气产量计算,而且能用于其它任何因素(如主化)作用下的油气产量计算。
Based on the material balance and the characteristics of oil and gas pro- ducts,this paper put forward a simplex optimum method to calculate the amounts of oil and gas formed from the kerogen in its evolution.The method was used to calculate the amounts of CH_4,C_2H_6,C_3H_8,C_4H_(10),CO_2,H_2S, N_2,H_2,H_2O and oil produced by the kerogen in its different evolution stage starting from R_(?)=0.2%.Through mathematical analysis,the relations of the oil and gas generation rates and the kerogen type index(KTI)and its deg- rees of evolution(R_(?)) were established.Comparing with the methods of the heat evolution simulative experiment,procedure and the chemical kinetics, the simplex optimum calculation has a wider application,it can be applied not only to the heat evolution stage of the kerogen,but also to its any other convertion stage.
出处
《石油勘探与开发》
SCIE
EI
CAS
CSCD
北大核心
1992年第1期23-31,共9页
Petroleum Exploration and Development
