método de operar um dispositivo de fundo de poço em um poço de petróleo, e, poço de petróleo apresentando um furo de sondagem e uma estrutura de tubulação

• Main Authors: FREDERICK GORDON CARL JR, ROBERT REX BURNETT, HAROLD J. VINEGAR, WILLIAM MOUNTJOY SAVAGE
• Format: Patent
• Language: Portuguese
• Published: 25.01.2011
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; ENGINEERING ELEMENTS AND UNITS; FIXED CONSTRUCTIONS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; TAPS; THERMAL INSULATION IN GENERAL; TRANSMISSION; VALVES; WEAPONS

A petroleum well having a communication system and a hydraulic system is provided. The petroleum well includes a borehole and a piping structure positioned within the borehole. The communication system supplies a time varying electric current downhole along the piping structure. The hydraulic system, which is positioned downhole proximate the piping structure, receives the time varying current to operate an electric motor. The motor drives a pump which pressurizes hydraulic fluid to selectively drive an actuator. The actuator is operably connected to a downhole device, such as a shutoff valve, and operates the downhole device as the actuator is driven by the pressurized hydraulic fluid.