石油勘探与开发2018，Vol.45Issue(3)：445-454,10.DOI:10.11698/PED.2018.03.09
腐泥型烃源岩生排烃模拟实验与全过程生烃演化模式
Modeling of the whole hydrocarbon-generating process of sapropelic source rock
摘要
Abstract
Based on experimental data from hydrocarbon generation with a half-open system,hydrocarbon generation kinetics modeling in gold tube of closed system,high temperature pyrolysis chromatography mass spectrometry experiment with open system and geological data,the characteristics of whole hydrocarbon-generating process,hydrocarbon expulsion efficiency and retained hydrocarbon quantity,origins of natural gas generated in high-over mature stage and cracking temperature of methane homologs were investigated in this study.The sapropelic source rock has a hydrocarbon expulsion efficiency of 30％-60％ and 60％-80％ in the major oil generation window (with Ro of 0.8％-1.3％) and high maturity stage (with Ro of 1.3％-2.0％) respectively;and the contribution ratio of kerogen degradation gas to oil cracking gas in total generated gas in high maturity stage is about 1:4.The degradation gas of kerogen accounts for 20％,the retained liquid hydrocarbon cracking gas accounts for 13.5％,and the amount of out-reservoir oil cracking gas (including aggregation type and dispersed oil cracking gas) accounts for 66.5％.The lower limit of gas cracking is determined preliminarily.Based on the new understandings,a model of the whole hydrocarbon-generating process of source rock is built.关键词
腐泥型烃源岩/生烃演化模式/排烃效率/生排烃模拟实验/干酪根/降解气/裂解气Key words
sapropelic source rock/hydrocarbon-generating model/hydrocarbon expulsion efficiency/experiment of hydrocarbon generation/kerogen/degradation gas/cracking gas分类
能源科技引用本文复制引用
李剑,马卫,王义凤,王东良,谢增业,李志生,马成华..腐泥型烃源岩生排烃模拟实验与全过程生烃演化模式[J].石油勘探与开发,2018,45(3):445-454,10.基金项目
国家科技重大专项(2016ZX05007-003,2011ZX05007-002) （2016ZX05007-003,2011ZX05007-002）
中国石油天然气股份有限公司重大专项(2016B-0601,2014B-0608) （2016B-0601,2014B-0608）
