Field Capacity Change Rule And Production Control Research In Xinjiang

Xinjiang gas field development shows great potential,which is one of the key projects of currently China’s energy development. In recent years, Xinjiang gas field has been get a large number of data about exploration and development, but the gas reservoir types, development characteristics and development phase of the complex in Xinjiang oil field, such as the volcano rock gas reservoir, in the test phase of the gas reservoir and table stage and decline stage of gas reservoir, lack of the whole production control plan causes the gas reservoir production regulation coordination.Be aimed at the production control and production problems of Xinjiang oilfield natural gas reservoir, this paper has done the following research work and obtain the results:1. According to the geological data, make a summary of the reservoir structure characteristics, sedimentary characteristics, reservoir property, fluid characteristics, temperature pressure system and other geological features.2. on single well productivity test data in different periods were analyzed by the stable flow capacity evaluation method; through the production of dynamic analysis software get the production the seepage parameter of all well gas layers; the productivity of all well in different production stages is got by unclosed well productivity evaluation method. And the different periods of productivity decline regularity of single well is studied.3. The overall production dynamic characteristics of each gas reservoir are evaluated. Through the different method to calculate the dynamic control reserves, reserves control degree, the production of unit pressure drop; Kelameili gas reservoir and the river Tamar Development reserves is low,the development potential is higher; Hutubi gas reservoir and Mossel Bay gas reservoir development is in the stage of production decline.4. The comprehensive utilization of the production. Dynamic method, node method combined with gas erosion velocity, the critical liquid carrying flow rate and productivity and production analysis of constraint conditions study the single well reasonable production of the gas reservoir.5. The combination of well productivity at present,the reasonable productivity,maximum production capacity and various constraint conditions analyze the production control of single well. And the overall production control plan of Xinjiang complex gas reservoir is got.