中国含油气盆地的无机成因气及其气藏

ABIOGENIC GAS IN OIL-GAS BEARING BASINS IN CHINA AND ITS RESERVIORS

天然气有无机成因的。探讨了烷烃气和二氧化碳的死亡温度，说明在高温的地球深处有无机成因气存在。研究并给出了鉴别有机成因和无机成因烷烃气、鉴别有机成因和无机成因二氧化碳的指标。分析了我国各主要含油气盆地中无机成因气及其气藏，认为我国中西部主要含油气盆地缺乏形成无机成因烷烃气和二氧化碳气的基本条件；而东部裂谷带含油气盆地中的二氧化碳气藏均属无机成因，其成藏与断裂构造密切相关。

here is abiogenic gas in natural gases. The dead temperatures of alkane gas and CO2 are discussed.It is expounded that there is abiogenic gas in the hish temperature deep places of the earth. The indexes of determining organic and abiogsnic alkane gsses and those of determining organic CO2 and abiopnic CO2 are studied and given out.After analysing the abiogenic gas in the main oil-gas thering basins in China and its resery iors, it is coboered that the main oil-gas bearing basins in middle-west part of China lack the basic conditions of forming abiogenic alkane and CO2, but the CO2 reserviors in Oil-gss bearing basins in rift zone in east pert of China belong to abiogenic and their formations are closely relative to faulted stractures.