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本文依据陆相石油勘探实践及大量的地球化学分析资料,对陆相生油岩有机质的丰度及类型进行了探讨。研究认为:1.陆相生油岩有机质含量及分布与湖相沉积类型和相带有关。一般采用有机碳、氯仿沥青“A”及烃含量来表示。2.应用色谱、红外、元素、色谱—质谱联用技术、扫描电子显微镜等分析资料,研究了有机质类型认为:陆相生油岩类型及分布受沉积相带的控制。其母质类型除腐殖型外,还发育了大量腐泥型等多类型生油岩。3.依据生油岩中可溶与不溶有机质成因联系,将可溶有机质视为整体有机质的一个“碎片”,结合干酪根等资料,将陆相生油岩有机质类型划分为五种类型即:腐泥型、腐殖-腐泥型、腐泥-腐殖型、腐殖型和腐煤型。
Based on the terrestrial oil exploration practice and a large amount of geochemical analysis data, the paper discussed the abundance and types of organic matter in the Luxiansheng oil-rock. The main conclusions are as follows: 1. The organic matter content and its distribution in the Lu-Sagheng oil-bearing rocks are related to the sedimentary facies and facies of the lacustrine facies. General use of organic carbon, chloroform bitumen “A” and hydrocarbon content to represent. By using chromatographic, infrared, elemental, chromatographic-mass spectrometry, scanning electron microscopy and other analysis data, we study the organic matter types that the type and distribution of oil-bearing rocks in the continental facies are controlled by sedimentary facies. In addition to its parental types humus type, but also the development of a large number of sapropel type and other types of source rock. According to the genetic relationship between soluble and insoluble organic matter in the source rock, the soluble organic matter is regarded as a “fragment” of the whole organic matter. Combined with kerogen and other data, the organic matter types of the terrestrial source rock are divided into five types: Mud, humus - sapropel, sapropel - humic, humic and rot coal types.