Comparison of Shale Inhibitors for Hydration, Dispersion, and Swelling Suppression
- Authors: Cao C.1, Pu X.1, Wang G.1, Huang T.2
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Affiliations:
- State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University
- Southwest Drilling Company of Zhongyuan Petroleum Engineering Co., Ltd, Sinopec
- Issue: Vol 53, No 6 (2018)
- Pages: 966-975
- Section: Article
- URL: https://journals.rcsi.science/0009-3092/article/view/235346
- DOI: https://doi.org/10.1007/s10553-018-0886-y
- ID: 235346
Cite item
Abstract
The properties of conventional shale hydration inhibitors were studied using samples of Longmaxi shale. The inhibition was evaluated by the rolling recovery test, linear swelling rate, and clay interlayer spacing. The results indicate that K2SiO3 inhibits clay hydration far better than other inorganic shale inhibitors while polyamine is superior to other organic shale inhibitors of clay hydration. Alkaline solution is more effective in suppressing shale dispersion. A neutral environment has little impact on this parameter. On the contrary, an acidic medium can even promote it. Most of the inhibitors are incapable of suppressing simultaneously clay dispersion and expansion. Therefore, they should be used in conjunction to suppress synergistically clay hydration, dispersion, and expansion.
Keywords
About the authors
Cheng Cao
State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University
Author for correspondence.
Email: caochengcn@163.com
China, Chengdu
Xiaolin Pu
State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University
Email: caochengcn@163.com
China, Chengdu
Gui Wang
State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University
Email: caochengcn@163.com
China, Chengdu
Tao Huang
Southwest Drilling Company of Zhongyuan Petroleum Engineering Co., Ltd, Sinopec
Email: caochengcn@163.com
China, Chengdu