METHOD OF LASER STIMULATION OF BARIUM AND/OR STRONTIUM COMPLEXION BY DTPA

Abstract: the present invention relates to a pig laser () that is equipped with a heating system to be used in the removal of scaling from subsea production systems () such as production lines, manifolds, anms and production columns. the induction promoted by the laser radiation is applied to the dtpa solution, heating and accelerating the reaction at the design limit temperature of the equipment to be descaling. at the same time, the laser is capable of maintaining the reaction temperature under control, considering the thermal demand of the reaction and the heat losses by the equipment that is located in ultra-deep waters, where the temperature is below 15� c. the target scaling is barium sulfate or strontium sulfate that are formed due to sulfated water coming from the reservoir that receives the injection of seawater without desulphation treatment. the present invention enables a method for descaling barium and strontium sulfate in the range of 60 to 100� c., with a ph preferably of 12.8, using dtpa composed in a 28.7% v/v solution and a mechanical agitation process.

Inventor(s): MARIO GERMINO FERREIRA DA SILVA, FRANCISCA FERREIRA DO ROSÁRIO

CPC Classification: B08B7/0042 ({by laser})

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