公开(公告)号：US20210222057A1

公开(公告)日：2021-07-22

申请号：US17139022

申请日：2020-12-31

Applicant: SOUTHWEST PETROLEUM UNIVERSITY

Inventor： Xiaojiang YANG ,  Difei HAN ,  Jincheng MAO ,  Heng ZHANG ,  Chong LIN ,  Jinhua MAO ,  Jinzhou ZHAO

IPC: C09K8/74 ,  C09K8/60 ,  C09K8/54

Abstract: An emulsifier with high temperature resistance, low viscosity and low corrosiveness, and an emulsified acid system comprising the same. The emulsifier includes a viscoelastic surfactant, which is prepared by a quaterization of fatty acid acyl propyl dimethylamine and a halogenated compound; by a quaterization of a long-chain halogenated hydrocarbon and a tertiary amine compound; or by a reaction of the fatty acid acyl propyl dimethylamine with a linking group synthesized by epichlorohydrin and an alkylamine compound.

公开(公告)号：US20220275269A1

公开(公告)日：2022-09-01

申请号：US17749504

申请日：2022-05-20

Applicant: Southwest Petroleum University ,  Sichuan Green & Top Technology Co., Ltd

Inventor： Jincheng MAO ,  Jinhua MAO ,  Xiaojiang YANG ,  Chong LIN ,  Yang ZHANG ,  An CHEN ,  Sikai DAI

IPC: C09K8/68 ,  C09K8/70 ,  C07F5/02

Abstract: A spherical organic nano boron crosslinker with a PAMAM core and a preparation method thereof, and a gel fracturing fluid. A chemical structure of the spherical organic nano boron crosslinker is shown as follows: In the formula, n=0, 1, 2 or 3; and