Sun B. Multiphase Flow in Oil and Gas Well Drilling

Wiley / Higher Education Press, 2016. — 223 p. —ISBN: 978-1-118-72025-7.A major contribution to the state-of-the-art for those interested in multiphase flow in well-bore, drilling cutting, hydrate and/or acid gas involvements:
The author is a leading researcher on the topics presented, and his development of gas-liquid flow pattern transition mechanism and multiphase flow models are major contributions to the multi-phase flow in wellbore;
Focuses on acid gas and hydrate involvements, offering the latest results from drilling engineering computation research;
Presents an emerging hot spot in petroleum engineering, with more multi-phase flow methodologies developed and adopted to improve the engineering process for gas & oil drilling and production.Multiphase flow plays an important role in the oil and gas industry. For novel and precisely controlled drillings, especially, it is the basic method to predict hydraulic parameters and design operation processes. Many previous studies have been done in this field for basic theories, experimental evaluations and numerical simulations. Thus, we considered that a systematic collection of these works would be helpful for engineers and other researchers.
This book focuses on the multiphase flow problems in the annulus or pipe, such as flow patterns, flow resistance, flow stability, multiphase fluids mixing, separating, uniformity mechanism, and so on. It starts from experimental observations of void fractions waves and flow pattern transition. A global multiphase flow model that includes all the necessary fluid components for drilling and well control is introduced. With this background, this model is applied for drilling techniques such as underbalanced drilling, kicking/killing during normal drilling, during drilling in acid gas formations, and deepwater drilling. The flow model is modified for each of these different applications, and different processes for solving the models are developed. Case studies are presented to show the results, and to validate the flow models.