海上热采井套管伸长量分析研究

Analysis of casing elongation in offshore thermal recovery wells

通过对井筒径向传热过程进行分析,建立热采井井筒温度剖面计算模型,从而获得井筒的温度分布情况,进而分析热采井套管柱力学,计算套管伸长量,为海上热采井实施预应力固井与井口抬升问题提供数据支持。

The radial heat transfer process ofwellbore is analyzed. The calculation model of wellbore temperature profile of thermal recovery well is established, and the temperature distribution of wellbore is obtained. Then the mechanics of casing string in thermal recovery wells is analyzed and the casing elongation is calculated, which provides data support for prestressing cementing and wellhead lifting in ot^hore thermal recovery wells.