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文留地区泥岩裂缝油气地球化学特征分析
断块油气田
2007年 14卷 第04期
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Title
Geochemistry charac teristics and or igin of shale
fracture oil and gas reservoir inW enliu region
Authors
W ang Qiaomei ,Jing Ling,Zhao Yong, et al
单位
1 中原石油勘探局地质录井处, 河南濮阳457001; 2. 中原油田分公司采油工程技术研究院, 河南濮阳457001
Organization
( G eology Logging Depar tment,
ZPEB, SINOPEC, Puyang 457001, China),
摘要
东濮凹陷泥岩裂缝油气藏还处在勘探初级阶段, 泥岩裂缝油气藏一般属自生自储型。与砂岩油气藏成因不同, 通过对文留地区沙三2 亚段泥岩裂缝中可溶有机质(油)的饱和烃和芳香烃组分进行气相色谱和气相色谱 质谱分析, 认为泥岩裂缝油是来源于以藻类和浮游生物贡献为主的有机质在含盐度较高的还原环境中热演化到成熟阶段所生成的产物, 有机质类型较好, 丰度值高。证明文留地区泥岩裂缝油气有充足的油气源, 勘探前影响良好。
Abstract
The exp lo ration fo r sha le fracture o il and gas reservo ir in
Dongpu Depression is still in pre lim inary stage. Shale fracture
o il and gas reservo ir genera lly be longs to the authigen ic
sto rage type w hose o rig in is d ifferen t from that in sandstone
reservo ir. Through the gas chrom a tog raph ana lysis on the
saturated hydrocarbon and arom atic hydrocarbon components
in the disso lvab le org an icm ate rials wh ich com e from the sha le
fracture reservo ir in Es32 o fW enliu area, our op in ion is that
the o il in sha le fracture reservo ir is the result of the process of
algae and p lank ton riched organ icm a teria ls therm a l evo lved to
the ma ture stage in h igh sa lin ity deox ida tion env ironm ent.
The good type and abandant enr ichm ent o f the organ ic
m ater ia ls can be ev idence o f o il and gas, w hich has p lenteous
sou rce and nice prospect of exploration.
关键词：
东濮凹陷 泥岩裂缝油气 地球化学特征 成因分析;
Keywords:
Dongpu Depression, shale fracture o il and
gas reservo ir, g eochem istry character istics, o rig in ana lysis.;
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