稠油冷采井砂产量分析方法

Sand Production Analysis of Heavy Oil Cold Production

运用高斯面函数计算稠油冷采井蚓孔直径变化,用扩散限制凝聚分形模型模拟蚓孔增长形态。根据物质平衡原理,建立了一套稠油冷采井砂产量分析方法。通过分析稠油冷采井砂产量数据,获得稠油冷采井蚓孔增长形态和蚓孔特征参数。分析结果有利于优化稠油冷采井井距,优选完井设计参数,并作为压力、产量分析或油藏数值模拟的基础。

It was proposed that the wormhole diameter changes along the wormhole path could be calculated by using the Area Version of Gaussian Function and the wormhole growth shapes could be described by the diffusion-limited aggregation model.A comprehensive method was developed to analyze the sand production in the cold production wells based on the principle of the material balance.The wormhole growth shape and its feature parameters were obtained by analyzing sand production data in the cold production wells.The study show that the result can be applied to optimize the well spacing for cold production wells , and provides a base for future analyses of pressure response of wells as well as field reservoir simulation.