Petroleum Science >2017,??Issue 3:??586-596 DOI: https://doi.org/10.1007/s12182-017-0166-1
Quantitative characterization of polyacrylamide–shale interaction under various saline conditions Open?Access
文章信息
作者：Samyukta Koteeswaran, Jack C. Pashin, Josh D. Ramsey and Peter E. Clark
作者單位：
School of Chemical Engineering, Oklahoma State University, Stillwater, OK 74078, USA,Boone Pickens School of Geology, Oklahoma State University, Stillwater, OK 74078, USA,School of Chemical Engineering, Oklahoma State University, Stillwater, OK 74078, USA and School of Chemical Engineering, Oklahoma State University, Stillwater, OK 74078, USA
投稿時間：2016-09-15
引用方式：Koteeswaran, S., Pashin, J.C., Ramsey, J.D. et al. Pet. Sci. (2017) 14: 586. https://doi.org/10.1007/s12182-017-0166-1
文章摘要
Interaction of polymer-containing injected fluids with shale is a widely studied phenomenon, but much is still unknown about the interaction of charged polyacrylamides such as anionic and cationic polyacrylamides with shale. The nature of interaction of charged polyacrylamides with shale is not well understood, especially from the perspective of assessing the potential for polyacrylamides to cause formation damage. Zeta potential and rheological measurements were made for Chattanooga and Pride Mountain shales suspended in polyacrylamide solutions with and without inorganic salts and tetramethyl ammonium chloride (TMAC). The change in zeta potential and viscosity with time was recorded. The magnitude of decrease in the absolute value of zeta potential with time is indicative of adsorption of polymer on the surface of shale and serves as a measure of the extent of polymer interaction with shale. The salts that were used in this study are potassium chloride (KCl), sodium chloride (NaCl). This study quantified the interaction of anionic and cationic polyacrylamide with different North American shales. From the experimental results, it was determined that the polyacrylamides can interact strongly with shale, particularly the cationic polyacrylamide. The objective of this study was to determine the extent of interaction of anionic and cationic polyacrylamide with each shale sample in the presence of additives such as salts.
關鍵詞
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Anionic and cationic polyacrylamides, Chattanooga shale, Pride Mountain shale, Zeta potential, Slurry rheology