Petroleo Brasileiro S.a. - Petrobras

Valtair Marcos Cristante

Mario Germino Ferreira Da Silva

Fernando Antonio Moreira Da Silva

Patricia Braga Gusmao

Tiago Cavalcante Freitas

Daniel Monteiro Pimentel

Pedro Andre Nogueria Souza De Oliveira Vale

Tatiana Pitchon Sampaio

Bernardo Caldeira Dias

Thiago Da Costa Ribeiro

Lilia Naveira Bukahi

Geraldo Marcel Gomes Calil

Marcelo Almeida Gomes

Leandro Fernandes Telles

Ciro Dos Santos Guimaraes

The present invention relates to a system and process for assisted autonomous treatment for removing and/or inhibiting scale with desulfated seawater on pre-salt production platforms, using production facilities and injection water, without the need of using a stimulation vessel or a workover rig.

Assisted autonomous treatment system and process in pre-salt production platforms, and their uses

The present invention relates to a method for applying scale inhibitor to completion fluids during injectivity test operations. Said method takes advantage of the completion fluid to inhibit scaling in the reservoir by filling the porous spaces of the reservoir rock with the inhibited completion fluid. When the well is put into production, this inhibited fluid positioned inside the reservoir will be produced together with the oil and will inhibit the formation of scale inside the reservoir and on production equipment.

Method for applying the scale inhibitor to completion fluids during injectivity test operations

The present invention relates to an autonomous chemical treatment system and method for drilling and completion probes, so that it allows the probe to carry out chemical treatments in subsea wells, dispensing the need to use the WSSV, which has a limited treatment capacity due to tank volumetry, generally smaller that the marine probes.

Autonomous chemical treatment system and method for drilling and completion rigs

The present invention refers to a method for removing fouling in carbonate reservoirs and/or depleted reservoirs by adding carbon dioxide to industrial or desulphated water to produce carbonic acid, in producing well stimulation operations, to be used as a weak acid for removing fouling in remote operation aiming at keeping the productivity of producing wells and lessening the need for remote operations with stimulation vessel, and therefore reducing operating costs.

Method for removing fouling using carbonic acid

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Rio de Janeiro, Brazil

Valtair Marcos Cristante