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Integrated Rock Typing and Rock Mechanics Studies for Median Line Principle Optimization

Zainulabdeen Salah Hasan, Razuan Bin Junin

Abstract


Once a field has been identified, and a general method of reservoir exploitation decided, there are several methods to achieve the reservoir management goal, but some ways may cost twice as much as others. The most critical operations to developing a field are drilling of wells, and it overemphasizes which in the early stages of field development. Petroleum wells have changed character in recent decades, as compared to earlier times. We have had a considerable improvement in equipment and technology, but we are also facing wells which are more difficult to drill, and we are required to make the wells more cost effective. The result of these requirements is to put more emphasis on the well design process. Wells should preferably be designed for easy implementation, also Numerous lost-time incidents including stuck pipe, pack – off, lost circulation and difficulties in running casing were experienced during drilling new wells. That becomes necessary to perform the task of integrated reservoir characterization and geomechanics in order to offer an  optimum approach to  design mud window to mitigate drilling hazard was one of the primary outcomes in this study.Integrated FZI* as an indicator of loss circulation zone that showed probability of mud loss increased with increased FZI* values, with median line principle guide us to design a new approach for optimum mud window design to reduce L.C and tight hole problem. The outcomes of this research can be utilized in the field industry to improved reservoir characterized and mitigate drilling problem by applying our new approach formud window design.


Keywords


Rock typing, mud window, rock mechanics, median line principle, optimization, loss circulation

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