Abstract: The present invention refers to a device with diametral magnetic arrays for installations in magnetic SUBs, aiming the remediation and mitigation of inorganic and organic scales in production columns. The proposed magnetic device meets several specific criteria based on the magnetohydrodynamic model (MHD). After applying the said device with the proposed magnetic field, an efficiency of the scale inhibition was experimentally observed through laboratory tests, obtained from the values of the masses encrusted in the walls of the experimental bench system in the laboratory, with respect to the application without magnetic field. The device described herein can be installed in any pipeline used to transport fluids, including underwater pipelines for oil wells. These fluids can be oils, lubricants, gases, steams, water, petroleum or liquids in general.

Abstract: The invention addresses to a flow uniformization process for the entire useful life of a horizontal well, which associates the use of divergent sand containment screens or divergent liner. For the manufacture of divergent liners, flow simulations are carried out via computational fluid dynamics as a function of the dimensions of the horizontal well, outer diameter and length of the liner, static pressure, expected flow pressure, expected oil flow rate, oil viscosity, API degree, planned length for the horizontal well. These simulations simulate the area open to flow along the horizontal section. Additionally, well stimulation methods, scale removers and, optionally, sand containment are used.

Abstract: The invention proposes a tool for flow uniformization in stimulation operations that uses a washing string with divergent perforation, provides a better direction of stimulation and, therefore, a better management of the reservoir. The technology can be applied entirely through the wells area, being addressed to the reservoirs area in the management of reservoirs; wells stimulated in a homogeneous way will have fewer problems of premature cones of water and/or gas, and in the lift and flow area will contribute to improving the guarantee of flow of production from the wells. It can be applied as a technology in the intervention of wells in the phase of restoration of productivity, through operations of injection of acid in the reservoir as well as operations of squeeze of scale inhibitor.

Abstract: The present invention addresses to a remote divergence method for inhibiting or removing scaling in wells equipped with intelligent completion (IC), including sealing failures, in which a mixture of viscous gel and solid material in different granulometries is used (7) and spheres soluble in water (8) and in oil (6), aiming at maintaining the production of wells equipped with intelligent completion, as well as reducing costs in relation to operations commonly performed with rigs.

Abstract: A composition of a packer fluid including biodiesel glycerin which can be used in deep and ultra-deep wells in environments containing CO2 and a process of using the same. This fluid may have a specific mass of at least 1.15 g/cm3, adequate viscosity for pumping at less than 2,000 cP and corrosive potential of up to 3 mm in 30 years. In addition, the packer fluid is compatible with the elastomers normally employed and does not degrade when exposed to temperatures lower than 100° C. The packer fluid is injected into an oil well as part of a well packer process.

Abstract: A composition of a packer fluid which comprises biodiesel glycerin to be used in deep and ultra-deep wells in environments containing CO2 and a process of using the same. This fluid presents a specific mass of at least 1.15 g/cm3, adequate viscosity for pumping at less than 2,000 cP and corrosive potential of up to 3 mm in 30 years. In addition to this, the composition of this packer fluid is compatible with the elastomers normally employed and does not degrade when exposed to temperatures lower than 100° C. The packer fluid is injected into an oil well as part of a well packer process.