CAJ | 학술논문

油基钻井液完钻井井壁及套管壁上附着的油浆、油膜会影响固井界面的胶结性能。为了改善水泥环与环空界面的亲合性，提高界面胶结强度，研发了BCS-020L冲洗液体系。实验结果表明，BCS-020L冲洗液与钻井液、隔离液均有较好的相容性，对井壁和套管壁上附着的油基钻井液具有良好的冲洗效果，冲洗效率达到80%以上；对环空界面具有良好的润湿改性作用，可以有效促进水泥环与环空界面的胶结。该冲洗液体系在玉门油田柳平1井取得成功应用，固井质量优良。
유기찬정액완찬정정벽급투관벽상부착적유장、유막회영향고정계면적효결성능。위료개선수니배여배공계면적친합성，제고계면효결강도，연발료BCS-020L충세액체계。실험결과표명，BCS-020L충세액여찬정액、격리액균유교호적상용성，대정벽화투관벽상부착적유기찬정액구유량호적충세효과，충세효솔체도80%이상；대배공계면구유량호적윤습개성작용，가이유효촉진수니배여배공계면적효결。해충세액체계재옥문유전류평1정취득성공응용，고정질량우량。
For drilling with oil-based mud, the oil slurry and iflm attached on wellbore or casing wall affect severely the cementing quality of the interface. To improve the compatibility between cement sheath and well surfaces, as well as increase the interface cement-ing quality, a prelfush system BCS-020L was developed. The BCS-020L provides good compatibility with drilling mud and spacer lfuid, and can effectively remove the oil-based drilling mud attached to the well and casing wall, with high cleaning efifciency, higher than 80%. Also, the BCS-020L could change cementing interface effectively from oil wet to water wet, and improve the cementing quality of interface efifciently. The prelfush system BCS-010L has been successfully applied on Well LIUPING 1 in Yumen Oilifeld with excellent cementing quality.