隐蔽油藏开发技术研究——以SD油田戴一段油藏为例  

Research on the development technology of subtle reservoir: a case study of the first member of Dainan Formation in SD Oilfield

作　　者：王海妹[1] 李理[1] 郑永旺[1] 周光哲[1] 于海丽[1] 李怡葶[1] 

机构地区：[1]中国石化华东分公司石油勘探开发研究院,江苏南京210011

出　　处：《复杂油气藏》2012年第3期50-52,76,共4页Complex Hydrocarbon Reservoirs

摘　　要：针对隐蔽性油藏难识别、难评价的特点,SD油田采用勘探开发一体化的模式,整体部署,分步实施。通过地震反演技术、沉积模式的应用、关键井位的部署、小层精细对比技术等方法摸清了SD油田戴一段的砂体分布规律,准确识别了戴一段砂体的砂岩尖灭线。利用逐步外推的办法,结合构造描述和钻井结果,逐步认清了戴一段油藏油水界面的分布规律。在SD油田戴一段隐蔽油藏共部署开发井19口,井距300～440m,单井产能3～15t/d,预计建产3.2×104t。实施过程中,及时跟踪、及时反馈、及时调整,保证实施成功率、钻井成功率、降本增效,降低了隐蔽性油藏的开发风险。Aiming at difficult identification and evaluation of subtle reservoir, an integrated management of exploration and development, which include development as a whole and step - by - step enforcement, was adopted in SD Oilfield. The sand body distribution and sandstone pinch - out lines of the first member of Dainan Formation in the SD Oilfield were de- termined by using the seismic inversion technology, the application of depositional model, the deployment of key wells, and fine contrast of single layers. Based on the structure description and drilling data, the distribution law of oil - water inter- face was gradually recognized by using the step - by - step extrapolation method. 19 development wells, the well spacing and each well daily production of which is respectively from 300 meter to 400 meter and from 3 tons to 15 tons,were ar- ranged in Ed1 of SD Oilfield and predicted a yearly production of 3.2 x 10^4t.

关 键 词：隐蔽油气藏 岩性-构造复合型油藏 油田开发 尖灭线 

分 类 号：TE349[石油与天然气工程—油气田开发工程]