Experimental study on loss-prevention performance of oil-based drilling fluids

Advances in Petroleum Exploration and Development Pub Date : 2017-03-26 DOI:10.3968/9415

J. Chai, Junyi Liu, Z. Qiu

{"title":"Experimental study on loss-prevention performance of oil-based drilling fluids","authors":"J. Chai, Junyi Liu, Z. Qiu","doi":"10.3968/9415","DOIUrl":null,"url":null,"abstract":"Compared to the water-based drilling fluids, lost circulation is more prone to occur when drilling with oil-based drilling fluids and it is difficult to deal with this problem on the drilling site for lack of high-efficiency lost circulation materials. In order to solve this technical problem, the principles of pressure resistance plugging technology of oil-based drilling fluids was firstly investigated according to the force-chain principle of granular matter mechanics, and rigid bridging particles, elastic packing particles and micro fibers could synergistically form fracture tight sealing zones with strong force-chain network to strengthen the lost circulation prevention ability of oil-based drilling fluids. Based on the principle above, novel loss-prevention materials were finally developed for oil-based drilling fluids by optimizing different plugging agents. Experimental results show that novel loss-prevention materials could be compatible with other components of oil-based drilling fluids. The oil-based drilling fluids with high sealing capacity could be optimized by adding novel loss-prevention materials, and it exhibits good rheological behavior with a low PPT filtration of 11.4 mL and excellent lost circulation prevention ability to strengthen the wellbore while drilling.","PeriodicalId":313367,"journal":{"name":"Advances in Petroleum Exploration and Development","volume":"45 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2017-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advances in Petroleum Exploration and Development","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3968/9415","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 1

Abstract

Compared to the water-based drilling fluids, lost circulation is more prone to occur when drilling with oil-based drilling fluids and it is difficult to deal with this problem on the drilling site for lack of high-efficiency lost circulation materials. In order to solve this technical problem, the principles of pressure resistance plugging technology of oil-based drilling fluids was firstly investigated according to the force-chain principle of granular matter mechanics, and rigid bridging particles, elastic packing particles and micro fibers could synergistically form fracture tight sealing zones with strong force-chain network to strengthen the lost circulation prevention ability of oil-based drilling fluids. Based on the principle above, novel loss-prevention materials were finally developed for oil-based drilling fluids by optimizing different plugging agents. Experimental results show that novel loss-prevention materials could be compatible with other components of oil-based drilling fluids. The oil-based drilling fluids with high sealing capacity could be optimized by adding novel loss-prevention materials, and it exhibits good rheological behavior with a low PPT filtration of 11.4 mL and excellent lost circulation prevention ability to strengthen the wellbore while drilling.

查看原文本刊更多论文

油基钻井液防漏失性能试验研究

与水基钻井液相比，油基钻井液在钻井过程中更容易发生漏失，由于缺乏高效的漏失材料，在钻井现场难以处理。为了解决这一技术难题，首先根据颗粒力学的力链原理，研究了油基钻井液抗压堵漏技术原理，刚性桥接颗粒、弹性充填颗粒和微纤维协同形成具有强力链网络的裂缝紧封区，增强了油基钻井液的防漏失能力。基于上述原理，通过对不同堵漏剂的优化，最终开发出适用于油基钻井液的新型防漏材料。实验结果表明，新型防漏材料可与油基钻井液的其他组分兼容。通过添加新型防漏失材料，可以优化具有高密封能力的油基钻井液，具有良好的流变性能，PPT滤失率低，为11.4 mL，具有良好的防漏失能力，可在钻井过程中加固井筒。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Advances in Petroleum Exploration and Development

自引率

0.00%

发文量