| 松南长岭断陷无机气成因类型及分布特征 |
| |
| 引用本文： | 陈杰,徐翰,汪新文,刘剑平.松南长岭断陷无机气成因类型及分布特征[J].山东地质,2014(10):34-38. |
| |
| 作者姓名： | 陈杰 徐翰 汪新文 刘剑平 |
| |
| 作者单位： | 中国地质大学,北京100083 |
| |
| 基金项目： | 国家重大专项：全球剩余油气资源研究及油气资产快速评价技术（二期）（2011ZX05028）股份专项：全球油气资源评价与利用研究（2012E-0501） |
| |
| 摘 要： | 对长岭断陷 CO2气地化分析表明，松南气田多数井的δ^13 Cco2值均大于-8×10^-3，均为无机成因，而东岭气田部分井的δ^13 Cco2值均小于-10×10^-3，属于有机成因。其中无机成因 CO2气体中 R/Ra 值均大于1，表明其无机成因 CO2都属于岩浆幔源成因。对长岭断陷地区钻井气测含量资料综合分析表明，无机成因 CO2气的平面展布特征可划分为：高含 CO2气区（＞90％），位于中部及东北部，表现有 NNE-NE 向展布的趋势；中高含 CO2气区（70％-90％），主要位于乾安次凹南部，总体表现为 NNW-近 SN 向展布；中低含 CO2气区（20％-50％），主要分布于2个地区。红岗地区，以 NNE 向为主。腰英台-达尔罕地区，以近 SN 向为主；南部的低含 CO2气区。垂向上长岭断陷南北2个次凹中的 CO2产出层位显著不同。北部次凹内的产出层位较高，主要以泉头组及其上的青山口组为主。南部的无机 CO2气产出层位以断陷期营城组火山岩为主，少量为登娄库组。
|
| 关 键 词： | 长岭断陷 无机气 成因类型 分布特征 松辽盆地 |
Origin Types and Distribution Characteristics of Inorganic Natural Gas in Changling Fault Depression |
| |
| CHEN Jie,XU Han,WANG Xinwen,LIU Jianping.Origin Types and Distribution Characteristics of Inorganic Natural Gas in Changling Fault Depression[J].Geology of Shandong,2014(10):34-38. |
| |
| Authors: | CHEN Jie XU Han WANG Xinwen LIU Jianping |
| |
| Institution: | (China University of Geosciences, Beijing 100083, China) |
| |
| Abstract: | Through analysis of geochemical analysis of CO2 gas in Changling fault depression,it is showed that theδ^13 Cco2 value of most wells in Songnan gas fields are more than -8×10^- 3 ,so,the gas belongs to inorganic natural gas.While,others in parts of Dongling gas fields are less than -10 ×10^-3 .It indicates those belong to organic natural gas.The R/Ra value of inorganic natural gas is more than 1.It indicates those gas come from magma mantle.According to comprehensive analysis of the contents of measured drilling data,this area can be divided into four grades：①areas of CO2 gas with high level （〉90%）.It locates in the central and northeastern part of Changling fault depression;② areas of CO2 gas with medium high level（70%-90%）.It mainly locates in the southern of Qian＇an sub depression;③areas of CO2 gas with medium low level （20% -50%）.It locates in Honggang and Yingyaotai Daerhan areas;④low CO2 containing gas zone in southern of Changling fault depression.Producing layers are significantly different in vertically between north sub depression and south sub depression.Producing layers in north are much higher than south.It is mainly composed by Quantou and Qingshankou formation.In contrast,it mainly produced in volcanic rocks in Yingcheng formation and a little in Denglouku formation. |
| |
| Keywords: | Songliao basin Changling fault depression inorganic natural gas origin types distribution characteristics |
| 本文献已被 维普 等数据库收录！ |
