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| 桩海地区下古生界古潜山碳酸盐岩孔隙特征与空间组合规律 | |
| 引用本文： | 崔殿,许淑梅,王金铎,于建国,韩文功.桩海地区下古生界古潜山碳酸盐岩孔隙特征与空间组合规律[J].海洋地质与第四纪地质,2008,28(3). |
| 作者姓名： | 崔殿 许淑梅 王金铎 于建国 韩文功 |
| 作者单位： | 1. 中国海洋大学,海洋地球科学学院,青岛,266100 2. 中国海洋大学,海洋地球科学学院,青岛,266100;中石化胜利油田物探研究院,东营,257001 3. 中石化胜利油田物探研究院,东营,257001 4. 中石化胜利油田有限公司,东营,257001 |
| 基金项目： | 山东省博士后科技创新择优资助基金 , 胜利油田博士后基金 |
| 摘 要： | 基于桩海地区下古生界碳酸盐岩古潜山储层的孔隙特征,分析了研究区不同潜山区块有效孔隙的空间组合特征,探讨了影响研究区下古生界孔隙类型及储层在空间上的组合特征的主控因素。下古生界碳酸盐岩古潜山以裂缝-扩溶缝-溶蚀孔洞为主,原生孔隙基本消失,具有储集意义的主要为次生孔隙。储层在空间上的组合形式主要包括非常发育的潜山内幕储层,且与风化壳储层不具有统一油水界面,深部溶蚀特征明显;太古界变质岩与下古生界碳酸盐岩之间往往具有统一的油水界面;许多下古生界古潜山带具有"上缝下洞"的储集空间特征等。孔隙的次生性及多样化的空间组合形式导致不同潜山区块储集能力的明显差异。多级不整合面古岩溶作用形成相时早期的溶蚀孔隙和潜山内幕储层;深埋藏溶蚀作用对碳酸盐岩先成孔隙的溶蚀改造和太古界与下古生界之间统一油水界面的形成具重要影响;新构造运动和埋藏期溶蚀作用相结合可合理解释研究区下古生界古潜山带"上缝下洞"的储集空间组合形式。 |
| 关 键 词： | 孔隙 储层空间组合形式 碳酸盐岩 下古生界 桩海地区 |
CARBONATE PORE CHARACTERISTICS, PORE COMBINATION REGULARITY IN SPACE AND GENESIS OF PALEOZOIC IN ZHUANGHAI AREA |
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| CUI Dian,XU Shu-mei,WANG Jin-duo,YU Jian-guo,HAN Wen-gong.CARBONATE PORE CHARACTERISTICS, PORE COMBINATION REGULARITY IN SPACE AND GENESIS OF PALEOZOIC IN ZHUANGHAI AREA[J].Marine Geology & Quaternary Geology,2008,28(3). | |
| Authors: | CUI Dian XU Shu-mei WANG Jin-duo YU Jian-guo HAN Wen-gong |
| Institution: | CUI Dian~1 XU Shu-mei~ |
| Abstract: | Based on the porosity characteristics,the authors probe into the pore combination regularity in space of Paleozoic in Zhuanghai area,and explores the main controlling factors.The most important types of pores of Paleozoic carbonate in Zhuanghai area are fissure-extended fissure-erosion holes.Primary pores have disappeared,and effective reservoir space comes from secondary pores.The developed inner buried- hill reservoirs are different in oil-water boundary from those of the crust of weathering and have deep-bur- ied karst characters;there are uniform oil-water boundaries and same erosion characters between Archean and Paleozoic;and the"upper fissure-lower hole"reservoir character of buried hill are showed in three main combination types of reservoirs in space.Secondary pores and various combination types of reservoirs in space lead to different reservoir capacities in different buried-hill zones.Multistage unconformity karsts lead to early stage corrosion pore and buried hill inner reservoir.Deep-buried karsts cause the formation of deep corrosion pore space and lead to uniform oil-water boundary and same erosion characters between Ar- chean and Paleozoic.Neo-tectonic movement and deep-buried karsts together result in the"upper fissure- lower hole"reservoir character of buried hill. |
| Keywords: | pore combination types of reservoir in space carbonate Paleozoic Zhuanghai area |
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