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Simulation of gas kick with high H2S content in deep well

ISSN号：1001-6058
期刊名称：Journal of Hydrodynamics
时间：2013
页码：264-274
分类：TE254[石油与天然气工程—油气井工程] TP391.9[自动化与计算机技术—计算机应用技术;自动化与计算机技术—计算机科学与技术]
作者机构：[1]School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China
相关基金：Project supported by the National Natural Science Foundation of China （Grant No. 51104172）, the National Science and Technology Major Project of China （Grant No. 2011ZX05026-001） and the National High Technology Research and Development Program of China （863 Program, Grant No. 2013AA09A215）.
相关项目：超临界二氧化碳在非常规油气藏中应用的基础研究

作者：孙宝江|

关键词：水合物抑制剂, 仿真模型, 天然气, 深水, 跃迁, 物相, 气泡直径, 控制方程, deepwater, gas kick, simulation, gas hydrate, phase transition

中文摘要：

The hydrate phase transition presents new problems and challenges for the deepwater well control in the drilling processes.A simulation model is built for deepwater gas kicks with consideration of the hydrate phase transition.The model is based on the multiphase flow governing equations and the hydrate phase transition calculation equations.The influence of the hydrate phase transition on the gas kick hydraulics is investigated through numerical simulations.It is shown that the diameter of the gas bubbles can significantly influence the hydrate phase transition effect.The influence of the hydrate phase transition on the gas kick hydraulics increases with the decrease of the average gas bubble diameter.The hydrate phase transition adds a'hidden'nature for the well kick in deepwater and hinders the early detection of the gas kick.The influence of the hydrate phase transition on the gas kick hydraulics is also studied in the case when the hydrate inhibitor is added to the drilling fluid.

英文摘要：

The hydrate phase transition presents new problems and challenges for the deepwater well control in the drilling processes. A simulation model is built for deepwater gas kicks with consideration of the hydrate phase transition. The model is based on the multiphase flow governing equations and the hydrate phase transition calculation equations. The influence of the hydrate phase tran-sition on the gas kick hydraulics is investigated through numerical simulations. It is shown that the diameter of the gas bubbles can significantly influence the hydrate phase transition effect. The influence of the hydrate phase transition on the gas kick hydraulics in-creases with the decrease of the average gas bubble diameter. The hydrate phase transition adds a＂hidden＂nature for the well kick in deepwater and hinders the early detection of the gas kick. The influence of the hydrate phase transition on the gas kick hydraulics is also studied in the case when the hydrate inhibitor is added to the drilling fluid.

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