论文部分内容阅读
通过对苏里格气田生产井压裂后排液保护以及影响苏里格气田产能的影响因素的研究,探索了测试时间、回压以及相应的渗透率等非均质对气井产能造成的影响,而探究的结果表明,要想可靠的气井绝对无阻流量,必须保证充足的测试时间,随着测试回压的降低,所产生的误差也随之减小。井外圈的半径与无阻流量成反比例。井外圈半径保持一定时,变差程度则越大,无阻流量将越低,从而严重影响了气田的产能。对气田产能影响因素的分析具有十分钟重要的现实意义。
Through the research on the discharge protection after fracturing in the production well of Sulige gas field and the influencing factors on the productivity of the Sulige gas field, the influence of heterogeneity such as test time, back pressure and corresponding permeability on gas well productivity was explored. However, the results of the exploration show that in order to ensure a reliable and unimpeded flow of the gas well, an adequate test time must be ensured. As the back pressure of the test decreases, the error generated also decreases. The radius of the well outer ring is inversely proportional to the unobstructed flow. When the outer radius of the well is kept at a certain level, the greater the degree of variation is, the lower the unobstructed flow rate will be and the production capacity of the gas field will be seriously affected. Analysis of the influencing factors of gas field production has ten minutes of important practical significance.