| 张 敏.苏干湖盆地连续电磁剖面和微生物基因定量油气勘探[J].地质与勘探,2017,53(6):1197-1207 |
| 苏干湖盆地连续电磁剖面和微生物基因定量油气勘探 |
| Application of continuous electromagnetic profiling and quantitative?detection?of gene technique to oil and gas exploration in the Sugan Lake basin |
| 投稿时间：2017-06-05 修订日期：2017-07-28 |
| DOI： |
| 中文关键词: 苏干湖盆地 微生物油气勘探 甲烷氧化菌 丙烷氧化菌 连续电磁剖面法 |
| 英文关键词: Sugan Lake Basin,microbial?oil?and?gas?exploration?technique, methane-oxidizing bacteria, propane oxidizing bacteria, continuous electromagnetic profiling |
| 基金项目:中国地质调查局项目（编号：12120115003501-1）和河北省自然科学基金资助项目(编号：D2016504021)联合资助 |
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| 中文摘要: |
| 降低勘探成本、提高勘探成功率，是油气行业发展之趋，其中物化探手段尤为关键。联合应用连续电磁剖面法和微生物基因定量技术，在研究程度较低的苏干湖盆地油气勘查得到积极发现：（1）盆地“四凹五凸”构造特征具备形成油气藏的储盖条件及运移通道，东部山前二叠、石炭系凹陷，中、西部侏罗系凹陷可能为烃源区；（2）相对钻孔揭示有油气显示的盆地中部凹陷，东部山前凹陷周缘和西部凹陷周缘，油气指示菌基因含量增大，可达1数量级，预示该两区油气更富集；（3）综合判断：东部山前二叠、石炭系凹陷，西部侏罗系凹陷，可能存在可开采油气藏。物化探方法联用对隐蔽性油气藏勘探有重要意义。 |
| 英文摘要: |
| How to reduce costs and improve success rate of exploration is one?of?the?focused?issues in oil and gas industry. To solve this problem, application of geophysical and geochemical methods?is?crucial. Using continuous electromagnetic profiling and quantitative?detection?of gene technique, an oil and gas exploration was conducted in?the Sugan Lake basin with few available data. The results show that the structure of “four uplifts?and five depressions” of Sugan Lake Basin has?reservoir conditions?and migration?pathways for generation of hydrocarbon?reservoirs. The?Sinian?and Paleozoic depressions of the eastern piedmont, and Jurassic depressions of the central and western basin may be source?areas. The content of genes indicating potential oil and gas in the edges?of?the eastern piedmont and western depressions is larger by one magnitude of order than that in the central depression where drilling logs reveal oil?and?gas, predicating these areas are more likely the localities with oil and gas accumulation. A comprehensive?analysis suggests that the?Sinian?and Paleozoic depression of the eastern piedmont, and Jurassic depression of the western basin may host exploitable oil and gas reservoirs. This work demonstrates that combination of geophysical and geochemical methods is of great significance to the exploration of subtle reservoirs. |
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