▎ 摘　　要

NOVELTY - The utility model claims a self-heating liquid storage tank for increasing production of oil and gas field, the inner part of the liquid storage tank is provided with a heating piece, the outer side of the heating piece is electrically connected with a control module, the control module is electrically connected with the transformer, the upper end surface of the liquid storage tank is provided with a pump port and a water inlet, the side surface of the liquid storage tank is provided with a water outlet, the liquid storage tank comprises a metal shell body, an anti-corrosion layer set on the inner surface of the metal shell body and a graphene photo-thermal conversion coating outside the metal body shell; the heating piece installed in the liquid storage tank is convenient for heating the liquid in the liquid storage tank after the heating piece is electrified, the graphene photo-thermal conversion coating outside the metal body shell is heated after being irradiated by the light, it has the function of heat preservation Therefore, by optimizing design of the liquid storage tank structure, providing a self-heating liquid storage tank for oil-gas field increasing production with a heat preservation and corrosion resistance.