葵南—龙王庙地区精细构造解释及地质分析

Fine Structure Interpretation and Reservoir Prediction in Kuinan-Longwangmiao Region

葵南—龙王庙地区成藏地质条件优越,存在一系列有利勘探目标,勘探程度相对低,但是地震、地质资料有限,构造复杂、断裂发育,断裂组合关系及构造样式不清,油气勘探难度大。针对存在的问题,以新采集的三维地震资料为基础,充分运用各种地震解释方法开展精细构造解释和构造特征分析,落实了研究区的断裂发育特征和构造特征,指出研究区断裂和构造的平面组合特征,主要发育北东向和近东西向两组断裂,断层划分为控凹、控带和伴生断层3个级次,发育伸展、走滑、反转和伸展—走滑叠加构造样式,并将新的认识应用于油气勘探,取得重大突破;探索出适合本区构造精细解释的技术方法,为辽河滩海及其他类似地区油气藏勘探提供可借鉴的经验。

Kuinan-Longwangmiao region is superior in reservoir forming geologic condition, has a series of favorable exploration targets, relatively low exploration degree. But it has limited seismic and geologic data, complicated structure and fracture development. Fracture composition relation and structure style is not clear, oil and gas exploration is difficult. For existing problems, based on the newly acquired 3D seismic data, the fine structure interpretation and structural feature analysis were carried out by full use of various seismic interpretation methods. The fracture development characteristics and structure characteristics of the study area were implemented. It is pointed out that the plane combination characteristics of fracture and structure in the study area. The main development of two groups of fractures is NE and near EW direction in the research area. The fault is divided into three levels of control concave, control tape and associated faults. It developed stretch, slip, reverse and stretch and slip superimposed structural style. The new understanding is applied to oil and gas exploration and make a breakthrough. To explore the appropriate technical methods of constructing elaborate interpretation for the region and provide useful experience for oil and gas reservoirs exploration in Liaohe beach and other similar areas.