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Well construction cycle 42 days, seam drill a yield of 93.01%, and coal seam in 4736 m. The footage On June 9, the bohai sea drilling engineering company bearing the drill zheng try flat 7 H more smooth completion, horizontal branch record again.
For solving more complex horizontal branch CBM accident, long well construction cycle difficult problems, before construction, drilling, logging, and the construction of the chosen reduce cost.the reasonability and rich experience of construction personnel, equipped with the good performance of instrument equipment, the full well the preparation work for the personnel and equipment to make the construction plan and senpass technology research.
In the process of drilling in the purpose of, and in the larger problem, formation and construction of coal seam, the parties tacit cooperation in mark layer segment, accurate judgement position fine-tuning, drill hole trajectory, accurate orientation, ensure real-time geological drilling bit in coal seam. The design of the well drilling two main supported and eight branches, the reality of the two main finish drilling a and 9 branch, the control area of 0.428 square kilometers, the footage and control area of coal seam assessment indexes fulfilling, and makes the company more than horizontal well drilling branch of shanxi CBM the quickest and most, seam drill footage of the highest rate and so on many records obtained from party a, high praise .