指数式气井产能的快速确定方法（The quick determination method of index gas well productivity）.docVIP

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指数式气井产能的快速确定方法（The quick determination method of index gas well productivity）.doc

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指数式气井产能的快速确定方法（The quick determination method of index gas well productivity）

指数式气井产能的快速确定方法（The quick determination method of index gas well productivity） The quick determination method of index gas well productivity Liu rong and feng wenguang (chengdu university of technology college of energy) Abstract: the method of determining the absolute unimpeded flow of gas Wells is mainly the exponential and binomial. But, for the conventional system well testing test data to general drawing and specific linear regression, this paper provides a quick method to determine the absolute open flow potential of gas well, the instance shows that the method is quick, the precision is satisfied. Keywords: gas well; Exponential; Absolutely unimpeded flow; Rapid prediction For high capacity (EMBED Equation. 3) the gas field, according to the general experience can be used (1/3 ~ 1/4) EMBED Equation. The value of 3 as the reasonable gas well production, so that to achieve stable yield of gas field goal, the production of gas well. However, for low porosity and low-permeability gas Wells, fracturing is often required. Due to the large pressure difference, low yield and small adjustment, the above requirements are not applicable, and the gas field is not stable. Literature [1] is proposed based on the binomial chart of fast method to calculate the open flow potential, but are often not just at the scene with binomial productivity equation, often need to use the index production equation at the same time. Based on the exponential equation, this paper deduces and establishes the method of absolute unimpeded flow of the fast and practical gas well. The application of two mining examples shows that this method is extremely simple and effective. Method establishment Rwalins and Schelhardt, based on the gas well production data, summarize the experience equation of gas well productivity, also known as the stable return pressure equation or the production capacity equation, and the domestic gas field habit is called the index formula. It describes the relationship betw