| 塔河油田盐体覆盖区奥陶系储层发育特征及主控因素研究 |
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| 引用本文： | 艾克拜尔·沙迪克,吕媛娥,吕海涛.塔河油田盐体覆盖区奥陶系储层发育特征及主控因素研究[J].新疆地质,2005,23(4):396-400. |
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| 作者姓名： | 艾克拜尔·沙迪克 吕媛娥 吕海涛 |
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| 作者单位： | 中国石化西北分公司勘探开发研究院,新疆,乌鲁木齐,830011 |
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| 摘 要： | 塔河盐下地区储层分布特征为奥陶系裂缝发育程度较高，溶蚀孔洞和半-未充填的高角度构造缝、溶蚀缝是本区最主要的储集空间类型．大型洞穴发育程度低于土体区，最主要的储集层类型为孔洞。裂缝型或裂缝-孔洞型储层．该区西部储层发育程度优于东部，本区有利储层多呈近NS条带状（或指状）展布；中下奥陶统上部储层发育程度高于下部；中下奥陶统储层发育程度高于上奥陶统良里塔格纽．控制盐下奥陶系储层发育与展布的主要因素是构造变形作用、加里东中期岩溶和沉积相．
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| 关 键 词： | 塔河油田 盐下 奥陶系 储层特征 分布规律 主控因素 |
| 文章编号： | 1000-8845(2005)04-396-05 |
| 收稿时间： | 04 20 2005 12:00AM |
| 修稿时间： | 06 6 2005 12:00AM |
CHARACTERISTICS AND MAIN CONTROLLING FACTORS OF THE FORMATION OF ORDOVICIAN RESERVOIRS IN AREAS COVERED WITH SALT LAYERS IN TAHE OILFIELD |
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| AKBAR Sadik,LU Yuane,LU Hai-tao.CHARACTERISTICS AND MAIN CONTROLLING FACTORS OF THE FORMATION OF ORDOVICIAN RESERVOIRS IN AREAS COVERED WITH SALT LAYERS IN TAHE OILFIELD[J].Xinjiang Geology,2005,23(4):396-400. |
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| Authors: | AKBAR Sadik LU Yuane LU Hai-tao |
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| Institution: | Research Institute of Exploration and Development, Northwest Branch Company, SINO PEC, Urumqi, Xinjiang, 830011, China |
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| Abstract: | The most important distributional characteristics of Ordovician reservoirs in areas covered with salt layers in Tahe oilfield is well-developed fractures. Vugs, partly filled or unfilled structural fractures with high angles and solution-enlarged fractures are the main types of porosity space in the studied area. Large caves are less developed than the main areas of Tahe Oilfield. Vug-fissure and fissure-vug reservoirs are the main reservoir types. Within this areas, reservoirs in the west part are more developed than that in the east part, and the favorable reservoir belts are mainly extended in north-south direction. Reservoirs developed in the upper part of middle-lower Ordovician are more developed than that in the lower part. Reservoirs developed in Lianglitage formation of upper Ordovician are more developed than that developed in middle-lower Ordovician. The key factors that control the formation and distribution of Ordovician reservoirs in areas covered with salt are tectonic deformation, the karst process occurred in mid-Caledonian orogeny and its sedimentary facies. |
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| Keywords: | Tahe Oilfield Ordovician Characteristics of reservoirs Distributional characteristics Key controlling factors |
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