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Thermal Simulation Experiment on the Generation of Saline Lacustrine Natural Gas in Donying Depression (PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2009年第01期
Page:
65-69
Research Field:
基础地质与矿产地质
Publishing date:

Info

Title:
Thermal Simulation Experiment on the Generation of Saline Lacustrine Natural Gas in Donying Depression
Author(s):
WANG Juan1;  JIN Qiang1;  MA Guo-zheng1;  WANG Li1;  WANG Xiu-hong2
(1.School of Earth Resources and Information, China University of Petroleum, Dongying 257061, Shandong, China; 2.Geological Scientific Research Institute of Shengli Oilfield, China Petroleum and Chemical Corporation, Dongying 257015, Shandong, China)
Keywords:
evaporate;  source rock;  light hydrocarbon;  simulation experiment
PACS:
TE122.1
DOI:
-
Abstract:
In the Minfeng area of Dongying depression, the natural gas comes from the source rocks of saline lacustrine facies. In order to study the reciprocity of organic matter and evaporates of saline lacustrine in Dongying depression, the paper conducts a series of thermal simulation experiment. It is found that carbonate, sulfate and chlorate can increase the hydrocarbon gas yields. The increase of their hydrocarbon is 35%,77% and 46% respectively at 550 ℃ when the three evaporates are mixed with the source rock. By comparison with the composition and parameter of the light hydrocarbon, it is concluded that evaporate could change the way of chemical compound and promote the evolution of organic matter. Furthermore, the composition of gaseous hydrocarbons generated from the source rock with evaporates are more similar to those of natural gases found in the Minfeng area. In view of above, the conclusion of thermal simulation has an important effect on the recognition of the hydrocarbon generation in saline lacustrine and the origin of natural gas in Minfeng area.

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Last Update: 2009-03-20