A New Method for Measuring Acid Effective Consumption Time in Acid Fracturing

Jian Ye Mou; Ke Xiang Zheng; Hua Jian Chen; Han Zhang

doi:10.4028/www.scientific.net/AMR.1004-1005.639

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 1004-1005A New Method for Measuring Acid Effective...

A New Method for Measuring Acid Effective Consumption Time in Acid Fracturing

Abstract:

In acid fracturing, the fast acid-rock reaction limits live acid penetration distance. Many kinds of acids were developed to reduce the acid-rock reaction rate. Acid effective consumption time in the fracure is a key factor for accurate prediction of live acid penetraiton distance in acid fracturing designs. In this paper, we developed a new method for measuring acid effective consumption time in the fracture and did experimental result matching to obtain effective acid diffusion coefficient with a acid flow-reaction model. Firstly, we designed a apparatus and corresponding experimental procedure. Then used the new method to measure the effective consumption time for gel acid and crosslinked acid. The new method uses reservoir core samples and is convenient to heat all the fluid as well as pipe lines to the reservoir tempeature, which reflects in-situ conditions more reliably. In the experiment, the rock mass loss with time was measured, based on which the acid consumption time is predicted. Under the experiment conditoins, the gel acid has a effecive consumption time about 17-minute, and the crosslinked acid has about 22-minutes at 130°. Finally, a model of acid flow-reaction in a fracture was used to match experimental results to obtained the acid diffution coeffecient. The results from this study help improve accuracy in acid fracturing designs.

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Periodical:

Advanced Materials Research (Volumes 1004-1005)

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639-647

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https://doi.org/10.4028/www.scientific.net/AMR.1004-1005.639

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Online since:

August 2014

Authors:

Jian Ye Mou*, Ke Xiang Zheng, Hua Jian Chen, Han Zhang

Keywords:

Acid, Acid Fracturing, Diffusion Coefficient, Effective Consumption Time, Experiment, Modeling

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References

[1] W.R. Dill: Reaction Times of Hydrochloric-Acetic Acid Solution on Limestone. Paper presented at the 1960 Southwest Regional Am. Chem. Soc. Meeting, Oklahoma City, Dec. 1-3 (1960).

Google Scholar

[2] K. Lund, H.S. Fogler, and C.C. McCune: Acidizing I: the Dissolution of Dolomite in Hydrochloric Acid. Chem. Eng. Sci., Vol. 28 (1973): 691-700.

DOI: 10.1016/0009-2509(77)80003-1

Google Scholar

[3] K. Lund, H.S. Fogler, C.C. McCune, and J.W. Ault: Acidizing II: the Dissolution of Calcite in Hydrochloric Acid. Chem. Eng. Sci., Vol. 30 (1975): 825-835.

DOI: 10.1016/0009-2509(75)80047-9

Google Scholar

[4] L.C. Tylor and H.A. Nasr-El-Din: Measurement of Acid Rock Reaction Rates with the Rotating Disk Apparatus, JCPT, Vol. 48(6): 66-70 (June 2009).

DOI: 10.2118/09-06-66

Google Scholar

[5] B.B. Williams and D.E. Nierode: Design of Acid Fracturing Treatments. J. Pet. Tech. (July 1972), 849-859.

Google Scholar

[6] L. Li: A study of Influence factors on Hydrochloric-Dolomite Reaction rate With the Apparatus of Artificial Fracture. Drilling & Production Technology, 23(1): 28-31, 2000, in Chinese.

Google Scholar

[7] Chinese Petroleum industry criteria: Measuring method of dynamic reaction rate for hydrochloric acid with carbonate rock. SY/T6526-2002, In Chinese.

Google Scholar

[8] R. D Gdansiki and L.R. Norman: Using the Hollow-Core Test to Determine Acid Reaction Rates. SPE Production Engineering, (March 1986): 111-116.

DOI: 10.2118/12151-pa

Google Scholar

[9] A.N. Barron, A.R. Hendrickson, and D.R. Weiland: The Effect of Flow on Acid Reactivity in a Carbonate Fracture. J. Pet. Tech. (April 1962): 409-415.

Google Scholar

[10] D.E. Nierode and B. B Williams: Characteristics of Acid Reactions in Limestone Formations. Soc. Pet. Eng. J. (Dec. 1971): 406-418.

Google Scholar

[11] L.D. Roberts and J.A. Guin: The Effect of Surface Kinetics in Fracture Acidizing. Soc. Pet. Eng. J. (Aug. 1974): 385-395.

Google Scholar

[12] T.J. Chung: Computational Fluid Dynamics. Cambridge, UK: Cambridge University Press (2002).

Google Scholar

[13] J. Romero, H. Gu, and S.N. Gulrajani: Three-Dimensional Transport in Acid Fracturing in Acid Fracturing Treatments: Theoretical Development and Consequences for Hydrocarbon Production. Paper SPE 39956 presented at the SPE Rocky Mountain Regional/Low-Permeability Reservoirs Symposium and Exhibition, Denver, 5–8 April. doi: 10. 2118/39956-MS. (1998).

DOI: 10.2118/39956-ms

Google Scholar

[14] J.Y. Mou, D. Zhu, and A.D. Hill, A: Acid-Etched Channels in Heterogeneous Carbonates – A Newly Discovered Mechanism for Creating Acid Fracture Conductivity. SPE Journal, 15(2): 404-416, (2010).

DOI: 10.2118/119619-pa

Google Scholar