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The Characteristics of Carbonate Reservoirs in Lower Paleozoic of Gucheng Low Uplift, Tarim Basin

Author: ZuoLei
Tutor: WangYanChun；WangQingHua
School: Chinese Geology University (Beijing)
Course: Geological Engineering
Keywords: Tarim Basin Lower Paleozoic Carbonate Sedimentary Reservoir
CLC: P618.13
Type: Master's thesis
Year: 2010
Downloads: 136
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Abstract


Large area of the eastern part of Tarim Basin , resources and great potential , with good exploration potential of Lower Paleozoic carbonate rocks is the most realistic exploration areas in the region , as the Tarim Basin Reserve exploration battlefield has gradually home for our exploration of the consensus . The Tower East after years of unremitting exploration and research exploration results and geological understanding , show good exploration prospects in the region . Low degree of exploration in the area , two - dimensional seismic network is relatively sparse , restricted geological research , especially reservoir studies . This study is the use of new seismic data acquisition , the ancient city of 4 wells drilling data combined with geological research , systematic analysis of the characteristics of regional tectonic evolution of the ancient city of the platform margin facies belts , three-dimensional area of the ancient city of fracture characteristics and trap characteristics , the ancient city of 4 well single well sedimentary facies and sedimentary evolution of the ancient city of slope break belt of Lower Ordovician and upper Cambrian reservoir prediction , clear the different layers of different types of reservoir distribution rule of the plane in the area , thus provide the basis for the exploration of the area next step deployment . Through this study , that mainly developed in three of Lower Ordovician karst reservoir , which the Yingshan Ordovician karst reservoirs in the most developed , the reservoirs are developed on the Yingshan top Yingshan in the lower part and Penglaiba the group at the top , is the the basin most important carbonate exploration target . The favorable reservoir area of the ancient city of three-dimensional prediction weathering crust at the top of the Lower Ordovician Yingshan full coverage area of ??the favorable reservoir area of ??109 square kilometers , forecast of 30-40 billion cubic meters of natural gas resources ; the Lower Ordovician Yingshan deep karst fracture cave is 169.3 square kilometers , to predict the amount of 800-1000 billion cubic meters of natural gas resources , the main purpose of exploration layer . Upper Cambrian development of four stacked platform margin Beach in the eastern part of the three-dimensional work area relative to the dolomite reservoir west width of 712 km , with a total area of ??300 square kilometers , but the burial depth larger , is the next step to explore an important area . Recommended in the ancient city of 3D Ordovician karst reservoir and fracture development zone , deployed in the local structures in the context of exploratory wells , and strive to achieve breakthroughs in oil and gas exploration in the area .

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