Oilifeld Long10-block Fuyu Oil Layer Fracture Development Characteristics And Evolution Of Research

Oilfield10blocks long and relatively shallow, the tectonic evolution of the region, theoil and gas accumulation conditions and distribution rules of the level of awareness is limited,resulting in the follow-up exploration and development objectives are difficult to clear, basedon determining the fracture system to determine the oil fault source, to carry out the Fuyu oillayer deposition of micro-phase and single sand body distribution study, to finalize the modeof hydrocarbon accumulation, and find out the oil-water distribution law, preferably ahydrocarbon accumulation in favorable target area, and then petroleum geologicalcharacteristics of the study area and oil and gas possession of the formation and distributionof a clear and in-depth understanding of further oil and gas exploration and development toprovide a reliable geological assurance.10blocks long Fuyu reservoir oil accumulation mode: Sanzhao Depression Green section ofsource rocks generated oil overpressure source of breaking down V Fuyu oil layer "intrusion"migration, and then in the role of buoyancy along the sand Complex fracture-intensive withthe formation of conducting channels to the10blocks long lateral migration andaccumulation in the structural highs of the fault-lithology, fault blocks, fault seal andlithologic traps. Length10blocks Fuyu oil layer of oil and gas into the possession of the maincontrolling factors:①The structural highs oil migration direction, the closer from the oilsource area more favorable for hydrocarbon accumulation. The②fracture intensive with amajor regional oil migration and accumulation.③fracture and sand body with the formationof conducting channel control parts of oil gathering and horizon.④high fault block oilgathering places, the main period of oil accumulation Mingshui deposition late.