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Issue
Name
Authors
Category
2019/1
Study of Potassium Formate-Based Drilling Fluid Influence on Core-Samples’ Permeability Characterized by AHFP.
Geosciences

Authors: Daria M. GUSEVA is currently a postgraduate student at the Drilling Department of Gubkin Russian State University of Oil and Gas (National Research University). She is specialist in drilling and completion fluids. E-mail: daria.guseva@yandex.ru
Sergey V. KOSTESHA graduated from Saratov State University in 2002 with a degree in industrial chemicals of drilling fluids and oil processing. He is author of “Colloid Chemistry of Drilling fluids”, a study guide for students and drilling fluid engineers, 2000.
E-mail: skostesha@mail.ru

Abstract: Formation drilling in abnormally high formation pressure zones adversely affects well construction efficiency.
The application of barite-free potassium formate-based drilling fluid ensures high-quality wellbore cleaning and minimizes the irreversible process of formation damage.
The impact of potassium formate-based drilling fluid and oil-based drilling fluid on core samples permeability was assessed, the applicability of drill-in fluids mentioned above was validated

Index UDK: 622.245.549

Keywords: potassium formate, return permeability, abnormally high formation pressure, weighted drilling fluids

Bibliography:
1. Ovchinnikov V.P., Aksenova N.A., Grosheva T.V., Rozhkova O.V. Contemporary drilling fluid compositions: Workbook. Tyumen: TyumGNGU, 2013, 156 p.
2. Ryazanov Ya.A. Drilling Fluids Encyclopedia. Orenburg: Publisher “Letopis”, 2005, 664 р.
3. Nediljka Gaurina-eEðimurec, Borivoje Pasic, Katarina Simon, Davorin Matanovic, Matija Malnar. Formate-Based Fluids: Formulation and Application, Rudarsko-geološko-naftni zbornik. Zagreb, 2008, р. 41-49.
4. Downs J.D., Howard S.K., Carnegie A. Improving Hydrоcarbon Production Rate Through the Use of Formate Fluids — SPE 97694, 2005.