苏北盆地“十二五”油气勘探主要成果、新认识和技术进展  

Main achievements, new understanding and technological progress for oil and gas exploration in North Jiangsu Basin during the 12^(th) Five-Year Plan

作　　者：邱旭明[1] 钱诗友[1] 于雯泉[1] 刘启东[1] 

机构地区：[1]中国石化江苏油田分公司

出　　处：《中国石油勘探》2016年第3期62-73,共12页China Petroleum Exploration

基　　金：中国石油化工集团公司科技攻关项目"苏北盆地致密砂岩储层定量评价及成藏研究"(P13113);"苏北盆地构造体系特征;演化与成藏研究"(P15077)

摘　　要：苏北盆地经历40年的勘探,已经进入到中、高勘探程度的阶段。"十二五"期间,苏北盆地加大了新区带、新层系和新类型"三新"领域研究和评价力度,并取得了一系列勘探成果:高邮凹陷花庄和金湖凹陷秦营新区、阜宁组深层低渗透领域及湖底扇、滩坝砂、水下扇砂砾岩体等多类型隐蔽油藏勘探实现规模储量新发现,为油田稳定发展夯实了资源基础。在斜坡带张扭断层形成机理、深层优质储层发育机制及深凹带戴南组多类型砂体沉积模式等地质新认识为勘探部署提供了理论依据,有力指导了勘探实践和油气新发现。逐渐形成和完善了适合苏北盆地地质特点的火成岩发育区地震资料处理及解释、隐蔽性断层识别及描述和深凹带多类型砂体识别及预测3项技术系列,为油田持续增储稳产提供了坚实的技术支撑。After 40 years＇ operations, the North Jiangsu Basin has been moderately or highly explored. During the 12^th Five-Year Plan, a series of exploration results were achieved within the North Jiangsu Basin by strengthening the studies and evaluations on ＂three new domains＂ （ new zones, new strata and new types）. Larege-scale reserves were discovered in low-permeability deep zones and multiple types of subtle oil reservoirs （e.g. sublacustrine fan, beach bar, and submarine fan glutenites） within the Huazhuang area of Gaoyou sag and the new Qinying area and Funing Formation of Jinhu sag. These discoveries provide a firm resource basis for the stable development of oilfields. Some new geological understandings were obtained in aspects of the formation mechanisms of transtensional faults at slopes, the development mechanisms of high-quality deep reservoirs and the sedimentary modes of various sand bodies of the Dainan Formation in the deep areas of the sags, providing the theoretical basis for exploration planning and the important guidance for practical explorations and incremental discoveries. Moreover, three technologies that were geologically suitable for the North Jiangsu Basin were developed and improved, including seismic data processing and interpretation of igneous rock areas, identification and description of concealed faults, and identification and prediction of various sand bodies in deep areas of sags. They provide grand support for increasing reserves and stabilizing production.

关 键 词：苏北盆地 勘探成果 地质认识 勘探技术 “十二五” 

分 类 号：TE122.1[石油与天然气工程—油气勘探]