Integration of Geomechanical Models Optimized Designs Fracture, for the Reactivation of Yacimiento Eocenofract B2X68, Maracaibo Basin
- Jorge Barrios (PDVSA)
- Document ID
- Society of Petroleum Engineers
- SPE Latin America and Caribbean Mature Fields Symposium, 15-16 March, Salvador, Bahia, Brazil
- Publication Date
- Document Type
- Conference Paper
- 2017. Society of Petroleum Engineers
- 0.2.2 Geomechanics, 2.5.2 Fracturing Materials (Fluids, Proppant), 5.1.5 Geologic Modeling, 2.4.1 Fracture design and containment, 4.3.4 Scale, 0.2 Wellbore Design, 2.4 Hydraulic Fracturing, 2 Well completion
- mechanical propierties, fracking desing, reserves, integration, geomechanics
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The EoceneFrac area corresponds to a subsoil extension of approximately 230 Km2, located northeast of Lake Maracaibo in the Lagunillas area, where Informal Members B-2-X and B-3-X have been defined as The main oil-producing sands of the Misoa Formation of the Eocene Age, classifying the B-2-X-68 deposit as the second at the western level in crude oil reserves and object of this study. The EoceneFrac reservoir is 24 ° API hydrocarbon and this reservoir is currently the second largest reservoir in the western region. Work on this site began in 1927 and is noted for the fact that it has to be fractured due to its low permeabilities, despite being a shallow production zone. The first fracture occurred in 1959 at the well Years later was the discoverer.
It has a significant consolidation, which aggravates the problem of the low fluidity of the hydrocarbons to the intermediations of the well, the deposit currently has forty-nine (49) wells of which are in different states being active sixteen (16), inactive six (6), abandoned seven (7), three (3) waiting for abandonment and finally seventeen (17) waiting for reconditioning works for the date of January 13, 2013, being the main problem affecting the production of these wells the low mobility.
A Geomechanical study focused on optimizing the fracture designs that arose due to the failed behaviors that had been previously carried out in the B2-X-68 deposit, ceased to function shortly after being made, it is noteworthy that they were found Important parameters of rock and proppant resistance that have a direct impact on collapse of the rock, as well as geopresiones that were not taken into account for initial designs.
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