Research Of Erdos Basin Low Permeability Sandstone Gas Reservoir In Horizontal Well Development Overall Deployment Technology

Research of Erdos Basin low permeability sandstone gas reservoir in horizontal well development overall deployment technology In the situation of the growing domestic energy demand, increase the use of unconventional natural gas in China enhanced the inevitable choice of energy supply. With the natural gas business continues to deepen, the rigid domestic natural gas demand growing, low-permeability sandstone gas reservoirs in the development of important horizontal well technology can significantly improve well production and reduce the cost of gas field development has been widely used in the development of oil and gas reservoirs. Permeability sandstone gas reservoirs of the Ordos Basin geological features, select the Sulige area of typical low-permeability sandstone gas reservoirs in the S54development block, in-depth study of a horizontal well in the overall development and deployment of technology; according to the degree of exploration and pre-development evaluation of the effect of proposed drill skeleton well the implementation of the rich region, using the idea of the overall deployment of the horizontal wells to give priority to the implementation of the vertical well formed skeleton well network, the detailed description of reservoir based on seismic interpretation results, comprehensive analysis of reservoir spatial distribution of the morphology, structure the direction and magnitude of gas well production performance, based on the deployment of the five kinds of favorable phase mode of horizontal wells, statistical laws, and reservoir drill horizontal wells adjacent areas real extension of the scale of the design of horizontal well length, based on the formation of principal stress direction to optimize the level of the best reservoir effect of reconstruction segment orientation. Combine well network encryption anatomy to determine a reasonable pitch and well away from proposed vertical wells-cluster wells-horizontal wells combination well the form of a horizontal well development, give full play to the technological advantages of horizontal wells, improve the extent of geological reserves to spend, to further improve production per well, and the blocks fast and efficient development and improve the effectiveness of gas field development. Finally, case analysis, outlined the specific applications of the overall deployment of the technology of low-permeability sandstone gas reservoirs in horizontal wells and looking forward to a good promotion prospects.