The Study Of Shale Reservoir Characteristics In Gold Dam Area

As the growing demand for energy as well as the excessive consumption of conventional oil and gas resources,the contradiction between the supply and demand for oil and gas resources becomes notable during recent years.The oil exploration and development around the world indicate that shale gas develops fastest and has the great potential for development among the unconventional oil and gas resources.Shale gas refers to the natural gas which is absorbed or in a free state contained in the shale gas formations that have high organic matter abundance and it has great potential for development.Shale gas reservoirs are characterized by source rock,reservoir and seal integration,rich in organic matter,high in thermal evolution,rock brittleness.Shale gas resource is widely distributed in China and it has large mineable reserves.However,there is still no mature technology for shale gas exploration and development.Therefore,it is urgent to make a breakthrough with the technology of exploration and development of shale gas.This thesis focuses on the formation of the layer of wufeng-longmaxi in fold dam area.The study mainly utilizes well YS108 to analyze the reservoir characteristics of shale gas from the target area from geology(depositional conditions,gas reservoir conditions,reservoir conditions,preservation conditions),geophysical logging(formation division and sedimentary facies division),geophysical exploration(structure interpretation,attribute analysis,post-stack inversion).The results indicate that the shale formation from the lower of wufeng-longmaxi layer in the target area.Besides,the northeastern part of the target area is the high-quality shale gas reservoir which can be used as the research target in the later exploration and development.