Oil & Gas Geology ›› 2000, Vol. 21 ›› Issue (1): 50-52,64.doi: 10.11743/ogg20000112

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MULTI-MECHANISM OF HYDROCARBON GENERATION OF CHINA'S PETROLIFEROUS BASINS

Guo Zhanqian1, Yang Xingke2   

  1. 1. Research Institute of Petroleum Exploration and Development, Daqing Petroleum Administration, Daqing, Heilongjiang;
    2. Department of Geology, Northwest University, Xi'an, Shaanxi
  • Received:2000-02-14 Online:2000-03-25 Published:2012-01-16

Abstract:

The hydrocarbon generation mechanism of China's petroliferous basins could be divided into organic mechanism,inorganic mechanism and synthetic mechamism due to their sources.Excepting zonal hydrocarbon generation model,kitchen and catalytic models of organic hydrocarbon generation mechanism should be taken into considerable account.The kitchen model means that the eruption and intrusion of igneous magma resulted in the acceleration of maturation of organic matter in sediments.Calalytic model means that elements such as Pd,Fe,Mn,Zn,Cu etc.could improve the combination of carbon and hydrogen and produce more hydrocarbon.This calalytic model might exist in Songliao Basin,Dagang and Xinjiang Oilfields.The important indication of inorganic hydrocarbon generation mechanism is the antitone of carbon isotopic ratio in methan homologue,this has been proved in Tarim and Songliao Basins.Experiment results indicate that CO2 and H2 could be synthesized into methane hydrocarbon with melten iron as medium.Basalt,olivine basalt and peridotite buried in deep strata may act just as the melten iron in laboratory.Therefore,there should be the case of synthetic hydrocarbon generation mechanism in deep of the earth.

Key words: hydrocarbon generation mechamism, hydrocarbon generation model, petroliferous basin

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