Reservoir characterization of the Odovician oil and gas pools in the Tahe Oilfield, Tarim Basin, Northwest China
Reservoir characterization of the Odovician oil and gas pools in the Tahe Oilfield, Tarim Basin, Northwest China
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DOI：
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发表时间：
2004
影响因子：
7.5
通讯作者：
Z. Kang;Wang Da-rui;G. Huff
中科院分区：
文献类型：
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作者：
Z. Kang;Wang Da-rui;G. Huff
塔里木盆地塔河油田奥陶系碳酸盐岩储层占探明储量的88.1%。这些储集层由互不连通和相互连通的岩溶孔隙网络构成，形成非均质复杂的储集系统。奥陶系储层不同部位油、水、气特征差异明显。油田中没有均匀的油/水接触，增加了其复杂性。酸压处理在76%的威尔斯井中是有益的，通过压裂进入不连通的储层和用酸增强流动通道，刺激非生产性威尔斯井并提高其他威尔斯井的产量。酸压裂处理应该是开发该油田和类似油田的标准程序。
About 88.1% of the proven reserves in the Tahe Oilfield in the Tarim Basin of Northwest China are trapped in Ordovician carbonate reservoirs. These reservoirs are formed by unconnected and interconnected networks of karstic porosity forming a heterogeneous and complex reservoir system. Oil, water and gas characteristics vary significantly in different portions of the Ordovician reservoir. There is no uniform oil/water contact in the field, adding to its complexity. An acid fracture treatment is beneficial in 76% of the wells, stimulating nonproductive wells and enhancing production in other wells by fracturing into unconnected reservoirs and enhancing flow pathways with acid. Acid fracture treatments should be a standard procedure for developing this and similar oil fields.