Implementation of Hydraulic Fracturing Operation for a Reservoir in KRG

Keywords: Hydraulic fracturing, Proppants, Fracpro, Fracture width, Fracture length

Abstract

This study focuses on procedures to enhance permeability and flow rate for a low permeability formation by creating a conductive path using the hydraulic fracturing model. Well data are collected from the Qamchuqa KRG oil field formation. A Fracpro simulator is used for modelling the hydraulic fracturing process in an effective way. The study focuses on an effective hydraulic fracturing design procedure and the parameters affecting the fracture design. Optimum design of fracturing is achieved by selecting the proper fracturing fluid with a suitable proppant carried in a slurry, determining the formation fracturing pressure, selection of a fracture propagation fluid, and also a good proppant injection schedule, using a high pump rate and good viscosity. Permeability and conductivity are calculated before and after applying the hydraulic fracturing. Fracture height, length, and width are calculated from the Fracpro software, among other parameters, and the production rate changes. From the results, it is observed that by using hydraulic fracturing technology, production will increase and permeability will be much higher. The original formation permeability is 2.55 md, and after treatment, the average fracture conductivity has significantly increased to 1742.3 md-ft. The results showed that average fracture width is 0.187 inch. The proppant used in this treatment has a permeability of 122581 md. The suitable fluid choice is hyper with an apparent viscosity of 227.95 cp, and the proper proppant type is Brady sand with a conductivity of 2173.41 md-ft. Fracture orientation from the Khurmala oil field in Kurdistan is vertical fractures produced at a depth of 1868 m. Fracture half-length, total fracture height, and average fracture width are 220 ft, 42 ft, and 0.47 inch, respectively. After fracturing, the maximum and average area of fracture are 33.748 and 17.248 ft2, respectively. The recommended pump hydraulic horse power is 3200 HHP, and the total required fluid is 1076.3 bbl. In this study, hydraulic fracture is designed, and then, it has been analyzed after that production is optimized.

Downloads

Download data is not yet available.

Author Biographies

Akram Humoodi Abdulwahhab, University of Kurdistan Hewler

Department of Natural Resources Engineering & Management, School of Science and Engineering, University of Kurdistan Hewler, Erbil, Kurdistan Region - F.R. Iraq

Maha Raoof Abdulamir Hamoudi, University of Kurdistan Hewler

Department of Natural Resources Engineering & Management, School of Science and Engineering, University of Kurdistan Hewler, Erbil, Kurdistan Region - F.R. Iraq

Rasan Sarbast, Engineer

Kurdistan Region, Iraq

References

Bajestani, B. M. & Osouli, A. (2015). Effect of hydraulic fracture and natural fractures interaction. In Fracture Propagation. International Society for Rock Mechanics and Rock Engineering.
Cleary, M. P. (1980). Comprehensive design formulae for hydraulic fracturing. Society of Petroleum Engineers. doi:10.2118/9259-MS.
Economides, M. (1992). A practical companion to reservoir stimulation. Amsterdam: Elsevier.
Geertsma, J. & Haafkens, R. (1979). Comparison of the theories for predicting width and extent of vertical hydraulically induced fractures. Journal of Energy Resource Technology, 101(1), 8-19.
Jones, J. & Britt, L. (1997). Design and appraisal of hydraulic fractures. Richardson, TX: Society of Petroleum Engineers.
Sarbast, R. (2019). Design of hydraulically fracturing operation for a reservoir in KRG. Department of Natural Resource Engineering & Management. School of Science and Engineering, University of Kurdistan-Hewler, Erbil, Kurdistan Region, - F.R. Iraq.
Wieland, D. R. (1971). Recent trends in hydraulic fracturing. Society of Petroleum Engineers. doi:10.2118/3659-MS.
Published
2019-12-27
How to Cite
Abdulwahhab, A., Hamoudi, M., & Sarbast, R. (2019, December 27). Implementation of Hydraulic Fracturing Operation for a Reservoir in KRG. UKH Journal of Science and Engineering, 3(2), 10-21. https://doi.org/https://doi.org/10.25079/ukhjse.v3n2y2019.pp10-21
Section
Research Articles

Most read articles by the same author(s)