松辽盆地梨树断陷金山地区天然气地球化学特征及其地质意义

路清华; 顾忆; 宋振响; 周卓明; 李贶

doi:10.11781/sysydz201602259

松辽盆地梨树断陷金山地区天然气地球化学特征及其地质意义

doi: 10.11781/sysydz201602259

中国石化石油勘探开发研究院无锡石油地质研究所, 江苏无锡 214126

基金项目: 中国石化科技项目(P14041)。

详细信息

作者简介:
路清华(1981-),女,硕士,工程师,从事油气地球化学研究。E-mail:luqh.syky@sinopec.com。

中图分类号: TE122.1⁺13
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出版历程
- 收稿日期: 2015-03-27
- 修回日期: 2016-01-12
- 刊出日期: 2016-03-28

Geochemical characteristics and geological significance of natural gas in Jinshan area of the Lishu Fault Depression

Wuxi Research Institute of Petroleum Geology, SINOPEC, Wuxi, Jiangsu 214126, China

摘要

摘要: 金山地区位于梨树断陷的东南斜坡带上,是重要的天然气勘探区。通过对金山地区已发现油气藏的天然气地球化学特征研究,认为金山地区天然气有2种不同类型的成因:(1)金2井天然气CO₂含量高,为非烃气藏,CO₂为无机成因气,烷烃气干燥系数高,为干气,属无机与有机的混合成因气,有机成因气主要为油型气;(2)其余各井天然气非烃含量低,为烷烃气藏,烷烃气中CH₄含量较低,为典型湿气,属成熟-高成熟煤型气。
- 天然气 /
- 地球化学 /
- 碳同位素 /
- 金山地区 /
- 梨树断陷
Abstract: Jinshan area is located in the southeast slope belt of the Lishu Fault Depression, which is an important gas exploration target. The geochemical characteristics of natural gas in Jinshan area indicate that there are two genetic types. (1) In well Jin2, non-hydrocarbon gas reservoirs with a high inorganic CO₂ content were found. The hydrocarbon gas is featured by a high dryness coefficient. Inorganic gas was mixed with oil associated organic gas. (2) Hydrocarbon gas reservoirs were discovered in the other wells. The gas is coal-type wet gas with a high CH₄ content, and is mature or over-mature.
- natural gas /
- geochemistry /
- carbon isotope /
- Jinshan area /
- Lishu Fault Depression

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