Evaluation and Application of a Cement-Based Blocking Agent in Oil Reservoirs
- Authors: Zhong H.1, Sun G.2, Jia J.3, Zhou X.4
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Affiliations:
- Key Laboratory of Enhanced Oil & Gas Recovery, Ministry of Education, Northeast Petroleum University
- Oil Recovery Plant No. 3, Daqing Oilfield Company Limited
- Institute of Exploration and Development, Xinjiang Oilfield Company
- Oil Recovery Plant No. 9, Daqing Oilfield Company Limited
- Issue: Vol 53, No 6 (2018)
- Pages: 956-965
- Section: Article
- URL: https://journals.rcsi.science/0009-3092/article/view/235336
- DOI: https://doi.org/10.1007/s10553-018-0885-z
- ID: 235336
Cite item
Abstract
Cement-based blocking agents are gaining recognition and are widely used in oilfield development because of their satisfactory performance and low cost. A performance evaluation formula must be derived and a particle size compatible with the parameters of one oil reservoir or another must be selected to meet the requirements on radial injection. The relationship between the cement particle-size distribution and the formation permeability was investigated experimentally. The blocking effect of the cement in the reservoir was evaluated. The practicality of its popularization and application was estimated. The results indicate that cement with a median particle size of <5 μm is compatible with reservoirs with effective permeabilities from 50 to 200·10–3μm2; with particle sizes from 5 to 10 μm, with effective permeabilities from 200 to 400·10–3μm2; and with particle sizes >20 μm, with effective permeabilities from 400 to 700·10–3μm2. In all cases, 90% blocking was achieved when these compatible values were used. This will contribute to the avoidance of a futile cycle in the high water cut flooding stage of oilfield development and will accelerate the field application of blocking technologies.
About the authors
Huiying Zhong
Key Laboratory of Enhanced Oil & Gas Recovery, Ministry of Education, Northeast Petroleum University
Author for correspondence.
Email: zhhy987@126.com
China, Daqing
Guojun Sun
Oil Recovery Plant No. 3, Daqing Oilfield Company Limited
Email: zhhy987@126.com
China, Daqing
Junfei Jia
Institute of Exploration and Development, Xinjiang Oilfield Company
Email: zhhy987@126.com
China, Karamay
Xinna Zhou
Oil Recovery Plant No. 9, Daqing Oilfield Company Limited
Email: zhhy987@126.com
China, Daqing