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| 新疆准噶尔盆地南缘深层有利储层发育的影响因素 | |
| 引用本文： | 林 潼,李文厚,孙 平,沈 英,王东良.新疆准噶尔盆地南缘深层有利储层发育的影响因素[J].地质通报,2013,32(9):1461-1470. |
| 作者姓名： | 林 潼 李文厚 孙 平 沈 英 王东良 |
| 作者单位： | 1. 中国石油勘探开发研究院,北京100083;中国石油勘探开发研究院廊坊分院,河北廊坊065007 2. 西北大学地质学系陕西西安710069 3. 中国石油勘探开发研究院廊坊分院,河北廊坊,065007 4. 中国石油新疆油田分公司勘探开发研究院,新疆乌鲁木齐,834000 |
| 基金项目： | 国家大型油气田及煤层气开发科技重大专项项目课题 |
| 摘 要： | 准噶尔盆地南缘油气资源十分丰富,但是目前仅在浅层发现有十分有限的储量.深层的勘探一直没有突破.前人在构造模式方面开展过大量的研究,但成效甚微.通过深层储层发育特征及其对有利储层发育的影响因素研究,进行铸体薄片、扫描电镜、孔渗分析、包裹体测温、方解石C和O同位素分析、Ro测定等分析测试.综合分析认为,准噶尔南缘地区:①深层清水河组有效储层的勘探,应该以远砂坝相为主,齐古组有效储层发育在水下分流河道微相的上段.深层有利储层的发育受有利的沉积相带控制,同时受成岩作用的影响；②较低的古地温梯度；③早期浅埋、晚期快速深埋的地层埋藏方式；④区域构造应力发育较弱的区域.以上因素都对准噶尔盆地南缘地区深层储层起到了明显的改善作用. |
| 关 键 词： | 准噶尔盆地南缘 深层储层 古地温梯度 埋藏方式 区域构造应力 |
Factors influencing deep favorable reservoirs on the southern margin of Junggar Basin, Xinjiang Province |
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| LIN Tong,LI Wen-hou,SUN Ping,SHEN Ying,WANG Dong-liang.Factors influencing deep favorable reservoirs on the southern margin of Junggar Basin, Xinjiang Province[J].Geologcal Bulletin OF China,2013,32(9):1461-1470. | |
| Authors: | LIN Tong LI Wen-hou SUN Ping SHEN Ying WANG Dong-liang |
| Abstract: | There are abundant hydrocarbon resources on the southern margin of Junggar Basin; nevertheless, most of the oil and gas fields were found only in the shallow layer, and the oil and gas reservoirs are very limited. The exploration of the middle-low layers has not made breakthrough. In order to expand the area of exploration, researchers have made lots of studies which are mainly focused on the structural styles. For the purpose of solving this problem, the authors emphatically investigated the reservoir characteristics and the controlling factors of deep reservoirs. Detailed information was acquired by the authors by using such means as casting thin sections, scanning electron microscope (SEM), permeability and porosity test, and fluid inclusion test, combined with carbon and oxygen isotope analysis and vitrinite reflectance (Ro). Studies show that the favorable areas of deep reservoirs are controlled by the sedimentary facies, the distal bars are the best reservoirs in Qingshuihe Formation, and the effective reservoirs of Qigu Formation are located in the upper part of distributary channel sand bodies. The lower paleogeothermal gradient, the less influence of regional tectonic stress and the quick burial in late period of burial process have greatly improved the deep reservoirs on the south margin of Junggar Basin. |
| Keywords: | southern margin of Junggar Basin deep reservoir paleogeothermal gradient formation burial style regional tectonic stress |
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