Due to equipment failures, natural disasters, supply shortage and increased demand for natural gas, the natural gas pipeline network operations department needs to distribute and adjust the supply for individual user. However, operation parameters were restricted by flowing law when natural gas flowed in the process of the pipeline system, the gas supply pressure and flow rate must also meet the requirements established by users. Based on the gas pipeline operation features, user needs and service priority, natural gas pipeline network resources optimization allocation model was put forward based on the priority service of important user to optimize the resources allocation and reduce the inefficiency utilization of natural gas and negative influence of shortage of natural gas supply. It took an actual example involving 33 pipes, 35 nodes, 3 compressor stations and the various types of users and applied the model and method, calculated the optimal operation schemes of pipeline system, which provided an important basis for operation scheduling.

CP Oilfield is a dual medium of porosity glutenite anticline structure and is a x3suhshallow heavy oil reservoir. It was developed in natural depletion manner but the development effect was poor. Thermal development method is expected to get the better development effect according to the characteristics of crude oil that has the high viscosity, poor flow properties and buries in the creviced formation. According to the screening criteria of heavy oil development we analyzed and verified the result with reservoir numerical simulation method. The results show that depletion manner + huff and puff is the best development method. The ultimate recovery can be 52%. The reservoir numerical simulation method was farther applied to optimize the parameters and analyzed the sensitivity of the bottom hole dryness fraction. According to the optimized results of numerical simulation, the plan was implemented for one well in CP heavy oil reservoir. It has obtained a good effect in the case of low steam injection rate. This development mode provided a reference significance for similar oilfield.