Methods of feasibility study of efficiency of well placement of horizontal directional wells within oil and gas reservoir bed boundaries. Jsc embamunaigas success experience were taken for analysis

Abstract

This article describes the positive experience of applying an integrated approach in planning and drilling horizontal wells with geosteering in the fields of Embamunaigas JSC (most of which have entered the late stage of development, with a steady increase in hard-to-recover hydrocarbon reserves) in order to achieve maximization of oil production. In this article we present a comprehensive horizontal well placement approach which comprises the following key elements: Interpretation of 3D seismic and the use of logs of nearby wells and a 3D static model for well trajectory planning; following a pre-agreed geosteering procedure while drilling, on-site analysis of cuttings and LWD data to adjust the well trajectory and, thereby, optimize well placement. The extent of field development drilling activity of the objects, production drilling of the main development object and the need of horizontal section well placement in the area of the existing element of the development of the object impose certain restrictions on the drilling of horizontal wells. Well placement is one of the best solution to increase production and extend of brawn field life.