碳酸盐岩油气藏缝洞单元多学科综合划分方法研究--以塔里木盆地轮古11井区为例  

Research on Multi-subject Integrated Division of Fracture and Cave Units in Carbonate Reservoirs: A Case of Well LG-11 Area in Lungu Oil Field, Tarim Basin

作　　者：邓兴梁[1] 刘俊锋[1] 裴广平[1] 李保华[1] 翟姝玲[1] 常少英 高翔[1] 王霞[1] 

机构地区：[1]中国石油塔里木油田公司勘探开发研究院 [2]中国石油杭州地质研究院

出　　处：《海相油气地质》2013年第2期72-78,共7页Marine Origin Petroleum Geology

基　　金：国家自然科学基金项目《缝洞型碳酸盐岩油藏溶洞参数识别方法研究》(编号:51074176)资助

摘　　要：对于已进入开发中后期的碳酸盐岩缝洞型油气藏,进行缝洞单元精细研究非常重要。盲目部署加密井,很容易导致因为所在单元的储量已被动用而失利。本文采用的碳酸盐岩缝洞单元多学科综合划分方法是:在有井控制的地区,首先分析井间连通性,然后结合生产动态、常规解析试井、流体性质、数值试井等多学科资料确定缝洞单元边界;在无井控制的地区,影响连通性最重要的主控因素是储层本身的相互连通性,其次才是断裂和裂缝,这时可在连通性约束下进行储层和裂缝预测,并以此为主要依据确定缝洞单元边界。对塔里木盆地轮古油气田轮古11井区划分出80个缝洞单元,其中有55个为储量未动用单元(潜力单元),并部署了一些加密井,已钻的XW1井获得了成功,投产初期日产油95t,不含水。It is important for the fractured and caved carbonate oil and gas reservoirs during the middle-late development period to study fracture-cave units in detail. Such blind deployment as infilling wells will be likely to lead to defeat because of having used the petroleum reserves in fracture-cave units. A method of multi-subject integrated division of fracture-cave units is proposed to determine the boundaries of fracture-cave units for the carbonate reservoirs in well areas and no well areas. This method is applied in Well LG 11 area of Lungu Oil Field where 80 fracture-cave units are divided, among which 55 units are reserves-unused （potential units）. Some infill wells are deployed in this area, in which the drilled Well WX-1 is succeeded and yields 95t of oil per day, without water.

关 键 词：碳酸盐岩油气藏 缝洞单元 综合研究 轮古油气田 

分 类 号：TE112.3[石油与天然气工程—油气勘探]