渤海湾盆地廊固凹陷杨税务超深超高温奥陶系潜山油气勘探重大突破实践与启示

发布时间：2018-08-19 11:19

【摘要】：河西务潜山带是冀中坳陷北部廊固凹陷主要油气聚集带,勘探早期仅在区带南部发现了别古庄、刘其营和刘其营西3个小型奥陶系潜山油藏,之后持续勘探始终未取得新突破。对制约该区奥陶系非均质碳酸盐岩潜山油气成藏的构造、沉积储层特征,以及储层改造技术等关键问题,开展针对性深化研究。通过实施整体连片三维地震叠前深度偏移处理与精细构造解释,理清了区带构造格局,发现落实了由3个局部高点组成的杨税务潜山构造;开展奥陶系沉积相和储集体发育特征分析,认为研究区云坪和含云灰坪为有利沉积储集相带,岩石类型、裂缝发育程度和岩溶作用共同控制储层发育,云岩类是有利储集岩;通过油气供给条件、构造演化及其对油气成藏的控制作用、储盖组合分布等因素的综合分析,构建了河西务潜山带奥陶系碳酸盐岩非均质储层的块状—层状复合型潜山成藏新模式。以研究新认识为指导,在杨税务潜山西部高点部署钻探风险探井——安探1X井,在奥陶系获日产气40.89×10~4m~3、日产油71.16m~3的高产油气流,实现了冀中坳陷北部超深超高温奥陶系潜山油气勘探的重大突破;同时,也展示了该领域广阔的勘探前景。
[Abstract]:The Hexiwu buried hill belt is the main oil and gas accumulation zone in Langgu sag in the north of Jizhong depression. Three small Ordovician buried hill reservoirs were discovered in the south of the area in the early exploration period, including Beiguzhuang, Liuqiying and Liuqiying. Through the implementation of integral 3-D seismic pre-stack depth migration processing and fine structural interpretation, the structural pattern of the area is clarified, and the Yangshuiwu buried hill structure composed of three local high points is discovered and implemented, and the Ordovician sedimentary facies and reservoir development are carried out. According to the analysis of the fossil characteristics, Yunping and dolomiferous lime flat are favorable sedimentary reservoir facies belts, rock types, fracture development and karstification control reservoir development, and dolomite is favorable reservoir rock. A new reservoir-forming model of massive-layered composite buried hill in Ordovician carbonate heterogeneous reservoirs in Hexi Wu buried hill belt was established.Guided by new knowledge,drilling risk exploration well Anyang 1X was deployed at the western high point of Yangshuiwu buried hill,and the daily gas production was 40.89 The great breakthrough in oil and gas exploration in the Ordovician buried hill with ultra-deep and ultra-high temperature in the northern part of the depression has also shown a broad exploration prospect in this field.
【作者单位】：中国石油勘探与生产分公司;中国石油大港油田公司;中国石油华北油田公司;
【基金】：中国石油天然气股份有限公司重大科技专项“华北油田上产稳产800万吨关键技术研究与应用”(2014E-35)
【分类号】：P618.13

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