EFFECT OF OPERATING PARAMETERS OF HYDRAULIC FRACTURING ON FRACTURE GEOMETRY AND FLUID EFFICIENCY IN OLIGOCENE, OFFSHORE VIETNAM

Authors

  • Truong Huu Nguyen PVU

DOI:

https://doi.org/10.15625/1859-3097/16/3/7821

Keywords:

Operating parameters of hydraulic fracturing, the 2D PKN-C fracture geometry, fluid efficiency.

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 of oil production from the Oligocene sandstone reservoir. Many discovery wells and production wells in lower Tra Tan and Tra Cu of Oligocene sandstone had high potential for oil and gas production and reserve where the average reservoir porosity was in range of 10% to 18%, and reservoir permeability was in range of 0.1 md to 5 md. Due to high reservoir heterogeneity, complication and complexity of the geology, high closure pressure was up to 7,700 psi. 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 of hydraulic fracturing stimulation to improve oil and gas production that is required of the study. In this article, the authors have presented the effects of operating parameters as injection time, injection rate, and leak-off coefficient of hydraulic fracturing based on the 2D PKN-C fracture geometry account for leak-off coefficient, spurt loss in terms of power law parameters on the fracture geometry. By the use of design of experiments (DOE) and application of response surface methodology in the constraint of operating hydraulic fracturing parameter of the field experience, the effects plots are evaluated. In the recent years, from the successful application of the hydraulic fracturing stimulation for well completion in the Oligocene reservoir, this technology is often used to stimulate reservoir.

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Author Biography

Truong Huu Nguyen, PVU

Petroleum engineering

References

Valk, P., and Economides, M. J., 1995. Hydraulic fracture mechanics. Wiley, New York.

Nguyen, D. H., and Bae, W., 2013. Design Optimization of Hydraulic Fracturing for Oligocene Reservoir in Offshore Vietnam. In IPTC 2013: International Petroleum Technology Conference.

Economides, M., Oligney, R., and Valkó, P., 2002. Unified fracture design: bridging the gap between theory and practice. Orsa Press.

Perkins, T. K., and Kern, L. R., 1961. Widths of hydraulic fractures. Journal of Petroleum Technology, 13(9): 937-949.

Nordgren, R. P., 1972. Propagation of a vertical hydraulic fracture. Society of Petroleum Engineers Journal, 12(4): 306-314.

Howard, G. C., and Fast, C. R., 1957. Optimum fluid characteristics for fracture extension. In Drilling and production practice. American Petroleum Institute.

Rahman, M. M., and Rahman, M. K., 2010. A review of hydraulic fracture models and development of an improved pseudo-3D model for stimulating tight oil/gas sand. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 32(15): 1416-1436.

Nolte, K. G., 1986. Determination of proppant and fluid schedules from fracturing-pressure decline. SPE Production Engineering, 1(4): 255-265.

Myers, R. H., Montgomery, D. C., and Anderson-Cook, C. M., 2016. Response surface methodology: process and product optimization using designed experiments. John Wiley & Sons.

Williams, B. B., 1970. Fluid loss from hydraulically induced fractures. Journal of Petroleum Technology, 22(07): 882-888.

Williams, B. B., Gidley, J. L., and Schechter, R. S., 1979. Acidizing fundamentals. Henry L. Doherty Memorial Fund of AIME, Society of Petroleum Engineers of AIME.

Truong, N. H., Bae, W., and Nhan, H. T., 2016. Integrated Model Development for Tight Oil Sands Reservoir with 2D Fracture Geometry and Reviewed Sensitivity Analysis of Hydraulic Fracturing. Research Journal of Applied Sciences, Engineering and Technology, 12(4): 375-385.

Meyer, 2014. Fracturing Simulation. Mfrac Software.

Smith, M. B., 1997. Hydraulic Fracturing. 2nd Edn., NSI Technologies, Tulsa, Oklahoma

Economides, M. J., and Martin, T., 2007. Modern fracturing: Enhancing natural gas production (pp. 978-1). Houston, Texas: ET Publishing.

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Published

31-08-2016

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