Wavefront Technology Solutions Inc V.WEE.H

Waterflooding Chicontepec

[BenVest99]

Chiconpetec seems to be a good candidate for waterflooding according to the study below. However, this study was done in 2004 and, looking at current production results, one would think that they haven't had much success so far. Good opportunity for Powerwave to demonstrate its benefits.

Information contained in this abstract also shows the importance that Wavefront takes the come up with an appropriate waterflooding strategy to have success with his tool.

https://www.onepetro.org/mslib/servlet/onepetropreview?id=00092077&soc=SPE

Integrated Characterization of Low Permeability, Submarine Fan Reservoirs for Waterflood Implementation, Chicontepec Fan System, Mexico
Authors	Noel Tyler, The Advanced Reservoir Characterization Group; Heron Gachuz-Muro, Pemex Exploration and Production; Jesus Rivera-R, University of Mexico (UNAM); Juan Manual Rodriguez Dominguez, Pemex Exploration and Production; Santiago Rivas-Gomez, Humyflo SA de CV; Roger Tyler, The Advanced Reservoir Characterization Group; Victor Nunez-Vegas, Independent Consultant, Caracas
Source	SPE International Petroleum Conference in Mexico, 7-9 November 2004, Puebla Pue., Mexico
Copyright	2004. Society of Petroleum Engineers
Language	English
Preview	Abstract Through integrated characterization of highly heterogeneous submarine fan reservoirs of the Chicontepec fan system optimum location for a waterflood pilot was identified and tested. Positioned in a high quality, comparatively low heterogeneity part of the complex, results of the pilot indicate that water flooding the Chicontepec is feasible and that the reservoirs tested would benefit from a several pattern, long-term water injection program. Introduction The Chicontepec submarine fan system was deposited in the Tampico-Misantla Basin of northeastern Mexico during the Paleocene-Eocene and is the stratigraphic equivalent of the Wilcox Group in Texas. The entire Chicontepec system is considered to be prospective1, and as such, accounts for a substantial component of Mexico's oil resource base. Primary production has been established in several fields in the northern and southern parts of the basin and limits to these fields have not been defined. By-well cumulative productions vary greatly. Like it's close analog, the Spraberry Trend of the Permian Basin, the Chicontepec is pervasively saturated, and like the Spraberry, is considered a candidate for secondary recovery. There are many challenges to be overcome before waterflooding can be initiated in the Chicontepec. The turbidite reservoirs of the Chicontepec are both vertically and laterally heterogeneous; reservoir quality is an issue as the sandstones are cemented and they contain a minor but critical amount of swelling clays; and the reservoirs are naturally fractured. Establishing the architecture of the reservoir is a critical element of waterflood design. Sediment architecture, which includes sand distribution and facies composition, controls the spatial distribution of reservoir properties and hence the distribution of original oil and place; how the injected fluids will move in 4-D (3-D space and time) through the reservoir; and ultimately, how the reservoir drains. Thus definition of reservoir architecture is the critical first step in the waterflood deployment. Having established the architecture of reservoirs in the field, the next steps are the integration of petrophysical data, construction of maps of reservoir properties and ultimately of reservoir volumetrics, synthesis of production data with reservoir geology to identify production character of component facies, and where the reservoir would best benefit from secondary recovery operations. In this paper we discuss the characteristics of the Chicontepec and the approach we followed to mitigate these technical challenges in the selection of platforms as pilot test wells for water injection in several reservoirs from the southern Chicontepec submarine fan system.