Cun, Meng;Mao, Jincheng;Sun, HaiLin;Wei, Guo;Tang, Feng;Zhang, Wenlong;Tian, Jizhen;Yang, Xiaojiang;Lin, Chong;Huang, ZiGao published 《Development of a novel temperature-resistant and salt-resistant double-cationic surfactant with “super thick hydration layer” for clean fracturing fluid》. The research results were published in《Colloids and Surfaces, A: Physicochemical and Engineering Aspects》 in 2021.Computed Properties of C22H43NO The article conveys some information:
In recent years, cationic surfactants have received extensive attention in cleaning fracturing fluid thickeners due to various unique properties. At the same time, the development of temperature-resistant and salt-resistant clean fracturing fluid is the key to deep well oil and gas resource development. In this study, the rigid-soft combined strategy is adopted for mol. structure designs. N,N-dimethylcyclohexylamine and epichlorohydrin are used as the initial reactants; after the ring-opening reaction occurs, they are quaternized with erucamide Pr di-Me ammonium to synthesize a novel double-cation viscoelastic surfactant, SY-JS. With double-cationic charges on the head group, water mols. are selectively adsorbed around the cation lattice to increase the hydration layer, and thus, salt tolerance is improved. Cyclohexane with a rigid structure improves temperature resistance. The ultra-long unsaturated hydrophobic tail imparts excellent heat tolerance and dissoly. to the designed viscoelastic surfactant. The clean fracturing fluid prepared by 3 wt% SY-JS with 130,000 ppm NaCl or KCl performs well under a shear rate of 170 s-1 at 140°C, and the apparent viscosity remains above 30 mPa s-1 after 120 min.. Addnl., the results show that single-tail surfactants exhibit excellent performance at approx. 140°C. Afterward, the brine produced from Rumaila and Jiyuan oil fields is used to prepare brine-based clean fracturing fluids, and evaluations, including proppant suspension, gel breaking, and permeability damage, were conducted. The results show that the brine-based clean fracturing fluid completely meets the requirements of hydraulic fracturing industrial application. And cis-13-Docosenamide (cas: 112-84-5) was used in the research process.
cis-13-Docosenoamide(cas: 112-84-5) was employed as: standard in determination of fatty acid amides in polyethylene packaging film by GC/MS;slip agent for polymers to reduce their friction coefficient and to make films easier to handle.Computed Properties of C22H43NO
Reference:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics