Study on Proppant Selection for Hydraulic Fracturing Design in Lower Oligocene Reservoir
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2016, Vol 4, Issue 4
Abstract
In the past decades, a large amount of oil production in the Cuu Long Basin was mainly exploited from the basement reservoir, oil production from the Miocene sandstone reservoir and a small amount oil production of the sandstone Oligocene reservoir. Many discovery wells and production wells in lower Tra Tan and Tra Cu of Oligocene sandstone were high potential oil and gas production reserves where the average reservoir porosity was the range of 10% to 18%, and reservoir permeability was the range of 0.1 md to 5 md. Due to reservoir high heterogeneity, complicated and complexity of the geological in high closure pressure up to 7,700 psi, [12]. . The problem in the Oligocene reservoir is very low fracture conductivity due to low conductivities among the fractures of the reservoirs. The big challenges deal with this problem by using hydraulic fracturing stimulation to improve oil and gas production that is required of the study. In this article, the authors have been presented about proppant selection based on proppant technology for improved oil production. The intermediate strength proppant (ISP) of CARBOLITE- Ceramic with high proppant pack permeability, high conductivity, and proppant strength up to 10,000psi has been selected for hydraulic fracture design in the Oligocene Reservoir. To compare the quality type of proppant as 20/40 Carbolite, 20/40 Jordan sand, 20/40 HSP, the conductivity should be evaluated under closure pressure up to 7,700psi in the Oligocene reservoir. Moreover, the 2D PKN–C fracture geometry account for leak-off coefficient, spurt loss in term of power law parameters on the fracture geometry [5] and accurate fracture geometry in low permeability Oligocene reservoir, offshore Viet Nam.
Authors and Affiliations
Nhan Hoang Thinh, Nguyen Huu Trương, Nguyen Van Hung, Luong Hai Linh
Keywords
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