|Table of Contents|

Genetic Type and Distribution Rule of Natural Gas of Kongdian Formation in Weibei Sag(PDF)

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

Issue:
2010年第03期
Page:
252-256
Research Field:
基础地质与矿产地质
Publishing date:

Info

Title:
Genetic Type and Distribution Rule of Natural Gas of Kongdian Formation in Weibei Sag
Author(s):
SHEN Pu1;  JIN Qiang1;  ZHANG Yu-ming2;  ZHANG Shan-wen1; 2;  WANG Li3;  CHENG Fu-qi2
(1.School of Geo-resources and Information, China University of Petroleum, Dongying 257061, Shandong, China; 2.Shengli Oilfield Company, China Petroleum and Chemical Corporation, Dongying 257000, Shandong, China; 3.Institute of Exploration and Development, Jidong Oilfield Company, China National Petroleum Corporation,Tangshan 063004, Hebei, China)
Keywords:
natural gas;  geochemistry;  genetic type;  distribution rule;  Kongdian Formation;  Weibei Sag
PACS:
TE122;P618.13
DOI:
-
Abstract:
Based on natural gas composition, carbon isotope and light hydrocarbon data, genetic type and distribution rule of natural gas of Kongdian Formation in Weibei Sag were discussed with the theory and discriminant diagram of natural gas genetic type and reservoir condition. The results showed that volume contents of CH4, heavy hydrocarbon and nonhydrocarbon were high, low and extremely low for natural gas in Weibei Sag, respectively; natural gas from well Tuan-4 in southern clinoform zone was biogas; natural gas in the southern of Duhu nose tectonic zone was oil type associated gas with biogas; natural gas in the middle of Duhu nose tectonic zone was typical oil type associated gas; natural gas in southern rim and eastern of northern subsag was coal type gas with oil type gas; northern deep subsag was the prospecting area for coal type gas. In general, natural gas in Weibei Sag could be divided into five genetic types, which were biogas, oil type associated gas with biogas, typical oil type associated gas, coal type gas with oil type gas, typical coal type gas; types of natural gas in Kongdian Formation were numerous, distribution was complex, the reasons could be related to hydrocarbon source rock and maturation.

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Last Update: 2010-09-20