Sized calcium carbonate is the most common material used in reservoir drill-in fluids for filter cake deposition. Calcium carbonate has numerous advantages relating to to drilling fluids but also some limitations. Research and field works were performed from mid-2018 to late 2019 to develop and implement a new material that can be used as an efficient alternative to calcium carbonate.

This article describes actual results of the research and field works performed to develop and implement an innovative bridging agent for water-base drilling fluids. The chemical is intended to build a filter cake and has a number of unique properties. The new material enables the solution of certain engineering tasks arising when drilling horizontal wells in a producing formation, in particular, preventing formation damage and increasing development efficiency. The article covers main methods used to elaborate the material and results of pilot works.

Keywords:
intervención de pozos petroleros, drilling fluid property, production enhancement, samotlorskoye field, drilling fluid selection and formulation, drilling fluids and materials, softening point, drilling fluid management & disposal, drilling fluid formulation, well intervention
Subjects:
Drilling Fluids and Materials, Drilling fluid selection and formulation (chemistry, properties), Drilling fluid management & disposal, Well Intervention
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