| Sulige gas field has characteristics of low porosity, low permeability, low yield, low pressure and severe heterogeneous. In the early stage, because of the knowledge lack of dynamic productivity characteristics of gas wells, it resulted in that production pressure difference increased, and wellhead pressure reduced, thus caused bad effect of stable production and single gas well development than expected.For the sake of large-scale development in Sulige gas reservoir, the model of cost down and development simplified as well as the measures of quick start-up and downhole throttling are adopted. However, the above caused difficulties in obtaining dynamic data like strata pressure and conducting aerogenesis section test, which produced obstacles in gas reservoir dynamic analysis.Based on the cognition of Sulige gas field development geology features and analysis of production situation, this paper systematically collected diverse technical methods and pertinence improvement and progress in gas field dynamic analysis over years in Sulige. In addition, on the basis of gas field dynamic analysis method adaptability under Sulige gas field simplified development condition, gas well production evaluation and reasonable production determination method, gas well dynamic reserves and recoverable reserve evaluation method, gas well production degression law analysis method were systematically collected, and a great quantity of instances showed the adoption and effectiveness of the whole bag of tricks in dynamic analysis in Sulige gas field. |
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