Abstract: A wellbore system and method for making viable the exploitation of oil deposits considered unviable, utilizing equipment available at the wells, wherein two wells, drilled in neighboring deposits, are connected by mechanical and hydraulic interconnection. The two wells include a first well (target well) in active production, fully equipped, and processing its production in a stationary production unit (SPU), and a second well, which is considered unviable. The second well initially appears as a pilot hole, can be used to map the reservoir of the deposit where it is located, and after the mapping procedure, its base can be cemented and abandoned. The pilot hole becomes the point of origin for drilling a horizontal lateral well in the direction of the first well, which becomes the target of the drilling and a recipient of production arising from the neighboring deposit where the second well is located.

Abstract: The present invention relates to an innovative wellbore concept, which gives experts a new alternative enabling them to analyse the economic viability of a deposit. The new structural arrangement for oil wells involves the utilisation of equipment that is already available at the wells (of dry or wet completion), and the exploitation of a remote neighbouring field by mechanical and hydraulic interconnection. The implementation method uses already known drilling tools and techniques, but renders their applicability advantageous, since it ensures production from deposits or wells that are not considered viable, by using resources that are already available and in operation.