The said procedure with the corresponding computer program procedure with the corresponding computer program has been successfully used for drilling in deep thick abnormal pressure reservoirs of several Soviet oil and gas fields (Tengiz and others). There are briefly stated fundamentals of the engineering procedure used to design optimized rheohydraulics programs for drilling wells. Mud compressibility problems are discussed as well as the adequacy of problems are discussed as well as the adequacy of different rheological models to the behaviour of various mud types. The theory has been developed to fit an optimal circulation program design for conditions of high probability of circulation losses and/or formation fluid kickings. Permission to reproduce in print is restricted to an abstract of not more than 300 words illustrations may not be copied.Ībstract This paper reports a general hydrodynamics theory of steady-state isothermal flow of non-linear viscoplastic drilling muds through the annular space of the well. Electronic reproduction, distribution, or storage of any part of this paper without the written consent of the Society of Petroleum Engineers or the International Association of Drilling Contractors is prohibited. The material does not necessarily reflect any position of the Society of Petroleum Engineers or the International Association of Drilling Contractors, its officers, or members. Contents of the paper have not been reviewed by the Society of Petroleum Engineers or the International Association of Drilling Contractors and are subject to correction by the author(s). This paper was selected for presentation by an SPE/IADC program committee following review of information contained in an abstract submitted by the author(s). drilling fluid selection and formulation (67)Ĭopyright 2010, SPE/IADC Managed Pressure Drilling and Underbalanced Operations Conference and Exhibition This paper was prepared for presentation at the 2010 SPE/IADC Managed Pressure Drilling and Underbalanced Operations Conference and Exhibition held in Kuala Lumpur, Malaysia, 24-25, February 2010.drilling fluid management & disposal (88).Completion Installation and Operations (16).(2020), 'Friction factor calculation for turbulent flow in annulus with temperature effects', International Journal of Numerical Methods for Heat & Fluid Flow, Vol. The originality of this work is to propose a new friction factor equation for practical use, including fluid temperature, pipe diameter ratio and inner pipe rotation effects. Friction factor is one of the important parameters for determining pressure loss in closed conduits. However, since the temperature is considered constant in the calculation of the pressure loss, problems can be encountered in most systems. These changes have a remarkable effect on pressure losses. Temperature drastically changes fluid properties and flow characteristics in wells.

Determining fluid behavior of fluids under high temperature is especially important for deep wells during drilling.

Drilling hydraulics annular reynolds