WebIn this paper, the inhibition property of polyethyleneimine (PEI) in drilling fluid was studied. The inhibition property was evaluated by linear swell test and roll recovery. The addition of PEI70000 resulted in the lowest swelling height, compared with the others inhibitor. Especially PEI was environmental and friendly. The inhibition mechanism was … WebMay 11, 2024 · Autophagy promotes degradation of polyethyleneimine-alginate nanoparticles in endothelial progenitor cells Guo-dong Wang, Yu-zhen Tan, Hai-jie Wang, Pei Zhou Department of Anatomy, Histology and Embryology, Shanghai Medical School of Fudan University, Shanghai, China Abstract: Polyethyleneimine (PEI)–alginate (Alg) nanoparticle …
A strong inhibition of polyethyleneimine as shale inhibitor in …
WebDec 20, 2024 · In this paper, a novel shale hydration inhibitor polyammonium abbreviated as DEP was prepared by piperazine, epichlorohydrin and dimethylamine, and evaluated by … WebOur products inhibit the shale from hydrating, lower the probability of bit balling, and can provide improved lubricity and friction reduction. Alcomer® 120 is a multi-functional product, acting not only as a shale inhibitor, but also as a viscosifier, friction reducer and flocculant. It has a very good performance reputation and comes in two ... designer watches in gold
Shale Inhibitors SLB - Schlumberger
WebJul 1, 2024 · Polyethyleneimine modified graphene (PEI-Gr) was prepared and characterized as a shale inhibitor. The PEI-Gr added water-based mud (PEI-Gr-WBM) displayed 25%, … Web1 中石化江汉石油工程有限公司钻井二公司 2 长江大学化学与环境工程学院; 出版日期:2024-01-25 发布日期:2024-01-25 作者简介:钟成兵(1976- ),高级工程师,2001 毕业于西南石油学院石油工程专业,现主要从事钻井工程相关研究工作。电话:13597428672,E … WebApr 11, 2024 · Abstract. Wellbore instability in complex shale formations is a major technical problem that restricts drilling safety and efficiency. In this paper, a hydrophobic cationic polyamine shale inhibitor (HCPA) was prepared by introducing a hydrophobic group into the molecular structure of an amine-based shale inhibitor having a branched structure. designer watches for less men