Heilongjiang Provincial Coal Geology 204 teams using the truck-mounted drilling rig to carry the SK-41 deep coal detailed investigation of coal - based projects Qitaihe state-owned mining area west part. The first drilling applied cone bit, the second and third used the DTH drilling. The average speed can reach 25m / h.
Inner Mongolia Geological Engineering Co., Ltd. used the truck-mounted drilling rig to drill CBM parameters wells in the Xilin Gol League, Inner Mongolia Suniteyou flag black day Tara town, depth 20 meters, the opening diameter φ311mm, the second drilling opened φ216mm, matched with mud pump, normal average drilling speed reached 16m / h.
Qitaihe City Sanyam exploration projects team used the truck-mounted drilling rig to drill the YD-05 CBM wells in Yilan, Heilongjiang Province, the first driling used the mud pumps and the second drilling used DTH, the drilling depth reaches 800m, the average drilling speed was 20m / h.
Jiaozuo City Dragon Hydrogeology and Engineering Co., Ltd. used the truck-mounted drilling rig to drill No 4 grouting holes in Henan Coking Coal Energy mine Guhanshan, the depth was 550 m, used mud drilling techniques, the average drilling speed was 15m / h.
Heilongjiang Province, Coal Geology 204 exploration team used the truck-mounted drilling rig to make the rescue drilling in in 8-23 flooding accident in Qitaihe Boli, the average speed is 24m / h. Got the affirmation of the leaders from the State Work Safety Supervision Bureau, Heilongjiang Province, as well as Dragon Coal Group.
Heilongjiang Province, Coal Geology 204 exploration team used the truck-mounted drilling rig to make the rescue drilling in in 8-23 flooding accident in Qitaihe Boli, the average speed is 24m / h. Got the affirmation of the leaders from the State Work Safety Supervision Bureau, Heilongjiang Province, as well as Dragon Coal Group.
