- Suitable for coring in medium hard formation with abrasiveness. Core recovery rate is high.
- Suitable for coring in very hard formation with abrasiveness. Core recovery rate is high.
- Higher core recovery is assisted in coring operations when this kind of bit is used for hole enlargement.
- The new coring tool that made of glass fiber reinforced plastic is used to improve the coring recovery and integrity in the loose gravel formation in Liaohe Oilfield.
- Field test shows that it's very effective and reliable, and compares with the offset wells, the coring recovery improved by 22.51%, and its main performances are advanced at home.
- The coring tool is tripped in 26 times, with total coring footages of 205. 71m, recovered core of 168.29m and the average core recovery of 81.81%, the highest in the block.
共下取心工具 26次，取心总进尺205.;71m，收获岩心168， 29m，平均收获率81