烃源岩生油模拟实验仪的研制与实验  

Development and Experiment of Oil-generation Simulation Instrument of Hydrocarbon Source Rocks

作　　者：关德范[1] Guan Defan(SINOPEC Petroleum Exploration ＆ Production Research Institute,Beijing 100083)

机构地区：[1]中国石化石油勘探开发研究院

出　　处：《中外能源》2018年第5期29-36,共8页Sino-Global Energy

摘　　要：烃源岩生油模拟实验研究是烃源岩生油理论的重要组成部分。无锡石油地质研究所根据烃源岩有限空间生烃理论的研究思路,自主设计研制了DK地层孔隙热压生排烃模拟实验仪。该仪器由高温高压生烃反应系统、双向液压控制系统、排烃（初次运移）系统、自动控制与数据采集系统、产物分离收集系统和外围辅助设备六部分组成,可模拟不同类型烃源岩在不同温度、不同压力、不同流体介质和无机矿物等条件下的生烃能力与排烃效率。选取泌阳、东濮、东营和白音查干凹陷以及吉林桦甸露头的低成熟度、不同有机物丰度和不同岩性的11块烃源岩样品,在完全封闭体系、不排烃的状态下开展模拟实验,目的是研究盆地整体持续沉降阶段,生油凹陷（或洼陷）内的烃源岩,在有限孔隙空间封闭体系内的热压生烃过程。当RO值达到0.8%-1.0%时,所有样品的生油量均不再增加,烃源岩的生油受到抑制。这与样品同属一地层时代的油田主力烃源岩现今实测RO值基本一致,说明本次模拟实验的结果与现今生油凹陷烃源岩的生油过程大体相同。根据11块烃源岩生油模拟实验获取的生油量数据分析,可以确定中国陆相烃源岩的评价标准,获取的生油量和残余有机碳参数可用于烃源岩真实生油量的计算。Experiment research of oil-generation simulation of hydrocarbon source rocks is the important part of oil-generation theory of hydrocarbon source rocks.According to the idea of oil-generation theory of the hy-drocarbon source rocks at limited space,Wuxi Institute of Petroleum Geology self-designed and developed simulation instrument of hydrocarbon-generating and expulsing for DK formation pore by hot pressing.It con-sists of hydrocarbon-generating reaction system at high temperature and high pressure,bidirectional hydraulic control system,hydrocarbon-expulsion（primary migration） system,automatic control and data acquisition system,product separation and collection system and auxiliary equipment these six parts.It can simulate the capability of hydrocarbon-generating and efficiency of hydrocarbon expulsion of various types of hydrocarbon source rocks under the conditions of different temperature,pressure,fluid media and inorganic mineral.Eleven source rock samples were selected from Miyang,Dongpu,Dongying and Baiyinchagan sag and Huadian outcrops in Jilin with low maturity,different organic abundance and lithology.Simulation experiment was done in completely closed system without hydrocarbon expulsion,whose aim is to research the hydrocarbon expulsion process by hot pressing of the source rocks in generative sags（or subsags） at limited and closed pore space at the stage of entirely continuous sinking of the basin.When the Ro is up to 0.8% to 1.0%,the oil production of all samples was no more increases and the oil generation of the source rocks was restricted.It is almost the same with the measured Ro of the major source rocks of the oilfield at the same stratigraphic age.It indi-cates that the results of this simulation experiment are almost the same with oil-generation process of the source rocks in current generatve sag.Through data analysis of oil generating quantity obtained by the simula-tion experiment of 11 samples,evaluation standard of China terrestrial source rocks may be fixed,and the obtained o

关 键 词：烃源岩 模拟实验仪 生油凹陷 热压生烃过程 生油量 残余有机碳 

分 类 号：TE31[石油与天然气工程—油气田开发工程]