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Electrokinetics Technology to Improve Acidizing of Carbonate Reservoir Rocks

DOI: 10.4236/jep.2013.44A001    3,353 Downloads   5,135 Views   Citations

ABSTRACT

A novel technology (electrokinetics) is proposed to improve acidizing operations, i.e., increase the penetration distance. The acid dissolves the carbonates (limestones/dolomites), enlarging the pores and increasing the width of pre-existing fractures. This gives rise to an increase in permeability. The principal acid commonly used is hydrochloric (HCl), which is pumped through tubing. Aqueous solutions of hydrochloric acid (usually 15%) are pumped into the carbonate formations to enlarge the pores and pre-existing fractures. Without application of D.C. current, the penetration distance is usually very short, especially in tight rocks. However, the penetration distance of acid is very short. By applying D.C. current, one can drive the acid for long distances into the formation being acidized.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

S. Shin, G. Chilingar, M. Haroun, K. Wittle, N. Meshkati, S. Pamukcu, J. Jeoung and H. Koo, "Electrokinetics Technology to Improve Acidizing of Carbonate Reservoir Rocks," Journal of Environmental Protection, Vol. 4 No. 4A, 2013, pp. 1-3. doi: 10.4236/jep.2013.44A001.

References

[1] A. R. Herdrickson, “Stimulation of Carbonate Reservoirs,” In: G. V. Chilingar, R. W. Mannon and H. H. Rieke, Eds., Oil and Gas Production from Carbonate Rocks, Elsevier, 1972, pp. 309-339.
[2] G. V. Chilingar, J. E. Davis, H. J. Farhanghi, L. G. Adamson and S. Sawabini, “Possible Use of Direct Electrical Current for Augmenting Reservoir Energy during Petroleum Production,” Compass of Sigma Gamma Epsilon, Vol. 45, No. 4, 1968, pp. 272-285.
[3] G. V. Chilingar, A. El-Nassir and R. G. Stevens, “Effect of Direct Electrical Current on Permeability of Sandstone Cores,” Journal of Petroleum Technology, Vol. 22, No. 7, 1970, pp. 830-836. doi:10.2118/2332-PA
[4] G. V. Chilingar, R. W. Mannon and H. H Rieke, “Oil and Gas Production from Carbonate Rocks,” Elsevier, New York, 1972.
[5] G. V. Chilingar, S. V. Mazzullo and H. H. Rieke, “Carbonate Reservoir Characterization,” A Geologic-Engineering Analysis, Part I, Elsevier, Amsterdam, 1992.
[6] B. C. Craft, W. R. Holden and E. E. Graves Jr., “Well Design, Drilling and Production,” Prentice Hall, Englewood Cliffs, 1992.
[7] M. R. Haroun, G. V. Chilingar, S. Pamukcu, J. K. Wittle, H. A. Belhaj and M. N. Al Bloushi, “Optimizing Electrosmotic Flow Potential for Electrically Enhanced Oil Recovery (EEORTM),” 2009.
[8] S. H. Shin, “Electroremediation of Offshore Muds Contaminated with Heavy Metals,” Ph.D. Dissertation, University of Southern California, 2011.
[9] J. K. Wittle, D. G. Hill and G. V. Chilingar, “Direct Electric Current Oil Recovery (EEOR)—A New Approach to Enhancing Oil Production,” Energy Sources, Part A (Recovery, Utilization, and Environmental Effects), Vol. 33, No. 9, 2011, pp. 805-822.

  
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