OIL-WELL SUCKER-ROD PUMP WITH CONTROLLABLE VALVE

• Main Authors: FILIDI G.N, LUKIN V.N, NAZAROV E.A, FILIDI K.G
• Format: Patent
• Language: English; Russian
• Published: 27.03.2003
• Edition: 7
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

FIELD: oil and gas producing industry. SUBSTANCE: proposed pump contains cylinder, plungers, suction valve and sucker rod string. Pump cylinder is made movable relative to tubing string and is furnished with controllable delivery valve and cross-shaped travel limiter connected with pump sucker rod s...