定向井/复合井

建模方法估算不断增长的高温井的温度

这项工作提供了一种新的建模工具，根据静态井眼求解器和现场数据进行了验证，以估计和管理高温石油、天然气和地热井的井下温度。

网格在钻头处生长。
图 1’ 钻头处的仿真鱼丝生长情况。
资料来源：SPE 214836。

井下温度 (DHT) 估算对于钻高压/高温 (HP/HT) 和地热井时的热管理非常重要。现有的瞬态模型忽略了井眼增长或加深对井下温度的影响。完整的论文提供了一种新的建模工具来估计和管理高温石油、天然气和地热井中的 DHT。该模型具有实时运行的潜力，从而对钻井作业进行数字化双胞胎，可能有助于防止未来在高温环境下钻井时钻头和井下工具因温度而过早失效。

介绍

分析和数值建模是文献中讨论的估计钻柱和环空内泥浆温度的两种主要方法。

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原文链接/jpt
Directional/complex wells

Modeling Approach Estimates Temperatures in Growing High-Temperature Wells

This work provides a new modeling tool, validated against a static-wellbore solver and field data, to estimate and manage downhole temperature in higher-temperature oil, gas, and geothermal wells.

Mesh growth at the bit.
Fig. 1—Mesh growth at the bit.
Source: SPE 214836.

Downhole temperature (DHT) estimation is very important for heat management while drilling high-pressure/high-temperature (HP/HT) and geothermal wells. Existing transient models neglect the effect of wellbore growth or deepening on the downhole temperature. The complete paper provides a new modeling tool to estimate and manage the DHT in higher-temperature oil, gas, and geothermal wells. The model, which has the potential to run in real time and thereby digitally twin the drilling operation, may contribute to preventing premature temperature-related failures of bits and downhole tools while drilling future wells in high-temperature environments.

Introduction

Analytical and numerical modeling are the two main approaches discussed in the literature to estimate the mud temperature inside the drillstring and the annulus.

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