Abstract: A modular safety apparatus adapted to allow the flow and create a mechanical seal for a series of electric conductors in wellheads, thus, ensuring pressure control and internal hydraulic integrity and allowing for a method to repair leaks and/or conductor cables that does not require the use of specialized well maintenance equipment, comprising a sealing case attached to a lower connector, joined to another main or intermediating sealing case. The case seals towards the pipe hanger and attaches to the upper connector that seals towards the upper section of the wellhead and attaches to the protective bushing or the upper sealing case to ensure control of well's pressure during its operation or reparation in case of leaks or failures.

Abstract: The invention is a modular safety device adapted to allow the flow and create a mechanical seal to a series of electric conductors (5) in wellheads, thus, ensuring pressure control and internal hydraulic integrity; it is also a method to repair leaks and/or conductor cables that does not require the use of specialized well maintenance equipment (Work Over). The device and method of the invention uses a sealing case (10) attached to a lower connector (9), joined to a main or intermediating sealing case (8) that seals towards the pipe hanger (3) and attaches to the upper connector (7) that seals towards the upper section of the wellhead (2) and attaches to the protective bushing (26) or the upper sealing case (6) to ensure control of well's pressure during its operation or reparation in case of leaks or failures. This device is useful for pump systems and gas and oil production.