Invention Grant
- Patent Title: Equipment for laser heating of fluids for injection in wells
-
Application No.: US17469267Application Date: 2021-09-08
-
Publication No.: US11761680B2Publication Date: 2023-09-19
- Inventor: Mario Germino Ferreira Da Silva , Francisca Ferreira Do Rosario , Bruno Barbosa Castro
- Applicant: PETROLEO BRASILEIRO S.A.—PETROBRAS
- Applicant Address: BR Rio de Janeiro
- Assignee: PETROLEO BRASILEIRO S.A.—PETROBRAS
- Current Assignee: PETROLEO BRASILEIRO S.A.—PETROBRAS
- Current Assignee Address: BR Rio de Janeiro
- Agency: RAPHAEL BELLUM PLLC
- Priority: BR 20200186370 2020.09.11
- Main IPC: F24H9/20
- IPC: F24H9/20

Abstract:
The object of the invention is to solve the problem of casing and string collapse of production or injection wells, which occurs due to cooling caused by injection of completion fluids into the well, by applying heat to the fluid being injected during operations, such as acid treatments, secondary recovery, scale removal, and inhibiting squeeze.
The fluid laser heating equipment was designed to perform the heating of the fluid to be injected into a production or injection well. Before being pumped into the well, the fluid passes through the heating equipment, through a metal coil-shaped tube immersed in hot water, placed inside a tank, a laser system heats the water inside the tank, the water inside the tank exchanges heat with the coil heating the same, and in turn the coil exchanges heat with the fluid passing within it. In this way, the fluid will be at an appropriate temperature for injection into the well.
The fluid laser heating equipment was designed to perform the heating of the fluid to be injected into a production or injection well. Before being pumped into the well, the fluid passes through the heating equipment, through a metal coil-shaped tube immersed in hot water, placed inside a tank, a laser system heats the water inside the tank, the water inside the tank exchanges heat with the coil heating the same, and in turn the coil exchanges heat with the fluid passing within it. In this way, the fluid will be at an appropriate temperature for injection into the well.
Public/Granted literature
- US20220082301A1 EQUIPMENT FOR LASER HEATING OF FLUIDS FOR INJECTION IN WELLS Public/Granted day:2022-03-17
Information query