دانلود مقاله The Adaptive Estimated Formation Pressure During Drilling Operations, in Drilling Wells, and an Exploration of Steps towards Efficient Drilling
سال انتشار: ۱۳۹۱
محل انتشار: اولین کنفرانس بین المللی نفت، گاز، پتروشیمی و نیروگاهی
تعداد صفحات: ۶
Mahdi Imanian Najafabadi – Department of Automation and instrumentation Petroleum University of Technology Ahwaz , Iran
Application of estimation and monitoring in drilling industry has found a wide-spread attention among researchers . One of the main areas relates to the efficient supervision and controlof drilling operations . For instance , during drilling oil wells , a fluid is pumped into drill string . This fluid is circulated through drill pipe and drill bit to bottom of the well and then is directed to the surface via annulus to transfer cutting material , meanwhile , cooling and lubricating the drillingdevices located at the bottom of well . This causes the pressure between the drilling fluid and formation to be varied , leading to kick phenomenon and ultimately resulting into probable blow out if it is left uncontrolled . Therefore , estimation and monitoring of bottom hole pressure is treatedas a necessary requirement during well drilling operations. In this paper , we are interested to investigate the feasibilityof using adaptive observer technique to realize monitoring of drilling operations in oil wells from the essential and critical operational problem views , being considered in the work.The resulting developed estimation and monitoring systems will be implemented and evaluated in simulation environment on the basis of accessible operational data from candidate oil wells.