论文部分内容阅读
随着世界油气价格的上涨,对低渗透页岩气藏的开发价值越来越突出。由于这是一种非常规的气藏,从页岩中采气就存在技术上的难题。讨论了用于此类气藏的压裂增产技术和用于致密地层天然气开发的流体。介绍了页岩这种低渗透性气藏的特征和开发此类气藏的一些关键技术。就开发页岩气藏的流体处理、多油层气藏、毛细压力、地层损害、生命周期的各个阶段、前景评估、测井数据要求、如何提高开采量等专项技术进行了阐述。最终得出结论,应用于低渗透性非常规气藏的专项技术使在得克萨斯州中北部Fort Worth盆地的密西西比系的Barnett和俄克拉荷马州页岩井的开发获益匪浅。
As world oil and gas prices rise, the development value of low-permeability shale gas reservoirs has become increasingly prominent. Since this is an unconventional gas reservoir, there are technical difficulties with gas recovery from shale. The technologies for fracturing stimulation for such gas reservoirs and the fluids for the development of tight formation gas are discussed. The characteristics of shale gas reservoirs with low permeability and some key technologies for gas reservoirs development are introduced. The special technologies for fluid processing, multi-reservoir, capillary pressure, stratigraphic damage, various stages of life cycle, prospect evaluation, logging data requirements and how to increase the production of the shale gas reservoir are described. It concluded that the special technology applied to unconventional low-permeability gas reservoirs has benefited the development of the Mississippian Barnett and Oklahoma shale wells in the Fort Worth Basin, north-central Texas.