Supramolecular fracturing fluids:Mechanism of action and research progress
Supramolecular fracturing fluid is a self-assembled fracturing fluid system based on non-covalent bond,which has the characteristics of reversible shear,adaptive,low damage and so on.It is a hot field in the research of new adaptive fracturing fluids,but there are many problems such as poor temperature and salt resistance,harsh operating conditions and high cost.This paper introduced the intermolecular interaction and regulation mechanism of supramolecular fracturing fluids based on hydrophobic association,hydrogen bonding,electrostatic interaction and host-guest interaction.It was systematically reviewed the design and synthesis of polymers,surfactants and other self-assembled elements,and its research progress in supramolecular fracturing fluids.There were compared and analyzed with the advantages and disadvantages of different kinds of supramolecular fracturing fluids.According to the principle of supramolecular interaction,the design and synthesis of new high performance and low cost self-assembly elements were the core of supramolecular fracturing fluid research.It was the key to the development of supramolecular fracturing fluid to regulate the self-assembly of supramolecular system by the synergistic interaction of multiple non-covalent bonds.The next step was to develop new adaptive supramolecular fracturing fluids that can meet harsh reservoir conditions.
supramolecular fracturing fluidnon-covalent bond interactionresearch progressoil and gas field development
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