Multistage shutoff of roof water guide crack area is system of leaking hunting in step

• Main Authors: ZHANG MAOPENG, WANG DONGHUI, SONG WENCHENG, WANG PENGFEI, LIU WEITAO, ZHAO CHUNBO, ZAI HUI, ZHANG QIN, LIU SHILIANG, DONG WENCHENG, WANG JIANNING, LIAO SHANGHUI
• Format: Patent
• Language: English
• Published: 11.11.2015
• 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 utility model discloses a multistage shutoff of roof water guide crack area is system of leaking hunting in step, including detection system, shutoff system and supply survey system, detection system includes the test probe, this test probe is connected gradually by a plurality of the detection unit and forms together, it to dismantle the connection to connect to form through the draw -in groove between the adjacent the detection unit, every the detection unit includes the inlet tube, the wet return, pressure regulating valve and electronic flowmeter, in the middle part of being located and the both ends of its inlet tube of the detection unit of afterbody and wet return are blocked respectively to establish and are connected at the draw -in groove, it connects at the draw -in groove to be located anterior the detection unit's the inlet tube and the one end connection of wet return, the U -shaped pipeline is connected to the other end, water pressure among every the detection unit keeps equal. The utility model discloses set up a plurality of unit with the test probe to through the pressure regulating valve adjust pressure value, guarantee that every the detection unit's pressure value keeps equal, owing to there is a plurality of the detection unit, can realize the synchronous measurement to drilling again.