Petroleo Brasileiro S.a. - Petrobras

Igor Mendes-Ursine Krettli

Ney Robinson Salvi Dos Reis

Hugo Francisco Lisboa Santos

Lincoln Homero Thome Ferreira

Hardy Leonardo Da Cunha Pereira Pinto

Mauricio Galassi

The present invention relates to methods of inserting and removing tools and/or robots into/from inside subsea oil wells. In this scenario, the present invention provides a system for insertion and removal of a device () in a subsea oil well (), said system comprising (i) a WCT assembly () comprising a removable protective cap () and (ii) a WCT tool () connected to a receptacle () comprising within it the device (), wherein the WCT tool () is suitable for being inserted in the place where the protective cap () is coupled, wherein at least one of receptacle () and WCT tool () is able to be opened or closed, releasing the device () into the subsea oil well () or retaining same inside the receptacle (). The invention further provides methods of inserting and removing a device () into/from a subsea oil well ().

Method of inserting a device in a subsea oil well, method of removing a device from a subsea oil well, and system for insertion and removal of a device in a subsea oil well

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Rio de Janeiro, Brazil

Igor Mendes-Ursine Krettli