考虑环境因素的井筒流动温度场计算

Calculation of wellbore flowing temperature distribution considering environmental factors

 卢智慧 何雪芹 刘志恒 钟敏

 （中国石化西北油田分公司采油一厂，新疆 轮台 841600）

(No.1 Oil Production Plant, Northwest Oilfield Company, SINOPEC, Luntai 841600, China)

在气藏开发过程中，井筒流动温度场是生产动态分析和生产优化的重要参数。考虑费用及测试风险等原因，目前该参数的获取仍以计算方法为主，但受地表环境温度变化的影响，计算结果存在较大误差。文中针对温差较大的地区，以恒温层深度为节点，建立了分段地温梯度条件的井筒流动温度场计算公式，消减了地面环境因素对井筒流动温度场计算的影响，计算结果与实测数据吻合程度高，能够较好地指导现场开发工作。

In the process of gas reservoir development, temperature distribution in gas well is very important for dynamic analysis and optimization. Considering cost and testing risk, the access to this parameter is still with calculation method, resulting in errors because of the influence of the earth′s surface temperature changes. In area where the surface temperature change is bigger and considering the layer of constant temperature factor, calculation formula of wellbore flow temperature with different geothermal gradient condition is established to reduce the calculation effect of the ground environment factors on wellbore flowing temperature distribution. Calculation result by using new model agrees with the measured data, which can be used in the development of gas reservoir.

10.6056/dkyqt201605024