Abstract

CASADIEGO QUINTERO, Efrain; ORTIZ, Alberto; MEZA, Germán  and  COLEGIAL, Juan Diego. LATERAL AND VERTICAL CONTINUITY OF THE SANDS OF THE MUGROSA FORMATION ON THE LLANITO AND CASABE FIELD. bol.geol. [online]. 2010, vol.32, n.2, pp.13-27. ISSN 0120-0283.

Mugrosa Formation was deposited on a transitional braided-meandering with lateral litofacies changes that complicates the hydrocarbon traps. It is important the lateral and vertical description of petrophysic changes with the channel connections (Ecopetrol, 2007). The research aim is to determinate the continuity and extension of sandstone channels of Mugrosa Formation and their lateral restrictions for floodplain deposits. The results of the observations are based in the integration of sedimentologic analysis of 111.68 ft drill core of wells ECE-7 and CS-1045, and approximately 820,21 ft of outcrops of the Uribe-Uribe zone, Middle Magdalena Valley. The outcrops show the channel geometries and its real thickness. Based in the correlation made it can be located amalgamation zones, where the channels have an extensive area. Correlations cross the Formation in all directions to know the connection of transversal and longitudinal channels in paleocurrents direction. It suggests the variation of area sands thicknesses for horizon, and it got on average of the variations of these thicknesses.

Keywords : Mugrosa Formation; Llanito and Casabe field; Lateral and Vertical Continuity of Sandstone channels.

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