Abstract
In the petroleum industry, one of the most serious problems encountered during cementing is the failure at the bonding interface. Many measures including casing-sand adhesion have been developed to improve cementing bond strength. However, due to the lack of detailed study of the technique, many questions remain. The primary goal of this study is to investigate the influence of casing-sand adhesion on cementing bond strength, and to optimize parameters. An orthogonal experiment and a supplementary experiment were conducted. The results indicated that casing-sand adhesion can improve the cementing bond strength. The priority orders of key factors are: sand grain size, sand coverage, adhesive curing temperature and adhesive curing time. The optimal parameters recommended for application are: 1.6mm~1.9mm sand grain size, 60%~70% sand coverage, 30°C curing temperature and 60 hours curing time.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Materials Testing
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Resin Cements / chemistry*
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Shear Strength
Grants and funding
This study was supported by “the Fundamental Research Funds for the Central Universities” (NO.12CX06028A), and the author XF. Z received the funding. But the funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. International Petroleum Service Corporation of SINOPEC provided support in the form of salaries for author J.S and Research Institute of Petroleum Engineering of CNPC Bohai Drilling Co. ltd. provided support in the form of salaries for author ML.X, but these companies did not have any additional role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript. The specific roles of these authors are articulated in the ‘author contributions’ section.