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Type-Curves for Herschel-Bulkley Fluid Model Resembling Lost Circulation in a Fractured Formation
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, EAGE 2020 Annual Conference & Exhibition Online, Dec 2020, Volume 2020, p.1 - 5
Abstract
Lost circulation is one of the major problems facing oil and gas industry plus other industries. It is defined as a partial or a total escape of the well-hole fluid, either drilling fluid, workover fluid or cementing fluid, into the surrounding formations. The loss fluid can hinder drilling operations, augment nonproductive time, increase the difficulty of managing the circulation fluid and add-up to the overall cost. Therefore, the demand from the industry to have a quick accessible solution on-site is of the essence during the fluid loss phenomenon. In this work, an analytical approach is developed to model the mechanisms of Non-Newtonian fluid for drilling fluid following Herschel-Bulkley model. A derivation of the solution is originated from Cauchy equation of motion to represent a Non-Newtonian fluid flow into a single horizontal fracture. Moreover, simulator is utilized to solve the same mathematical problem on purpose of verifying the results between analytical and numerical solutions. An improvement of the analytical solution is made comparing with latest existing solution in literature pertaining to type-curves of mud loss. Due to limitations on the industrial on-site during drilling operation, type-curves is generated to describe the mud loss volume or front per unit of time.