临清坳陷德古2井油气成藏时期分析  

ANALYSIS ON TIME OF FORMATION OF OIL AND GAS RESERVOIR IN WELL DEGU 2 OF LINQING EX-PRESSION

作　　者：姜平[1] 王建华[2] 翟卫红[3] 

机构地区：[1]成都理工大学沉积地质研究院,四川成都610059 [2]中国地质大学(北京)能源学院 [3]华北油田公司地球物理勘探研究院

出　　处：《西南石油学院学报》2006年第1期23-25,6,共3页Journal of Southwest Petroleum Institute

摘　　要：德古2井包裹体分析表明,油气进入德古2井圈闭的时间是在沙三段—馆陶组沉积时期,天然气组分分析表明,在烃源岩的低熟和成熟阶段早期,油气就开始运移、聚集于德古2井圈闭,德古2井烃类气体主要来自于Ⅲ型干酪根的早期裂解气。天然气碳同位素分析表现出低熟的煤成气特征,天然气成熟度Ro约为0.8％。石炭系—二叠系和奥陶系储层差,石炭系—二叠系煤系地层生排烃能力低,是德古2井获低产气流的主要原因。Well Degu 2 is located in construction of Bixue Dian in Dezhou sag of Linqing expression, Shengli oilfield. Analysis of inclusion show that the time which oil & gas enter into trap of well Degu 2 is at the period of sedimentation in Shashan Member-Guantao Formation. Analysis of gas component show that oil & gas begin to migration in the period of low mature and mature for source rock, and accumulate to trap of well Degu 2. Gas in hydrocarbon is mainly from the crack gas of early kerogen in Ⅲ type kerogen. The character of coal-genetic gas is low mature based on the analysis of carbon isotope in gas. Maturity of gas is about 0.8% so on. Reservoir in Carboniferouse-Permian and Ordovician is bad, coal-bearing seam in Carbonniferouse-Permian have a poor capacity of hydrocarbon-generating, poor capacity of hydrocarbon-generating and migration of Carbonifer-ouse-Permian is mainly reason of failure for the exploration well Degu 2.

关 键 词：德古2井 临清坳陷 成藏分析 

分 类 号：TE112.31[石油与天然气工程—油气勘探]