Multi-stage remote control type choke manifold device capable of preventing blowout

• Main Author: JIANG JINWEI
• Format: Patent
• Language: Chinese; English
• Published: 16.01.2024
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The invention discloses a multi-stage remote control type choke manifold device capable of preventing blowout, and relates to the field of petroleum drilling equipment. According to the scheme, the device comprises a flat valve and an active pressure relief judgment unit, a flow dividing box used for flow dividing is assembled on the flat valve, a safety valve used for active pressure relief and passive pressure relief of the flow dividing box is assembled on the flow dividing box, and the active pressure relief judgment unit comprises the flow dividing box. A first-stage pressure value, an effective second-stage pressure value and an effective third-stage pressure value are obtained through analysis of the active pressure relief judgment unit, a temperature change value, a liquid level value and a flow value are obtained through calculation according to the first-stage pressure value, the effective second-stage pressure value and the effective third-stage pressure value respectively, and according to changes