急求英语高手，论文摘要翻译成英文(不要机译，错误太多，如果翻译得好，绝对加分)

More horizontal well drilling process CBM branch of horizontal Wells and well integrated in the cave of the branch, and drilling well connected eye, gas underbalance pressure drilling and geological guidance technology, is a high difficulty in construction of system engineering. But the main performance advantages in the single well gas production, high recovery is high, the production cycle is short, drill cover an area of an area small, but must be adopted with geological conditions of the different type of horizontal Wells branch, its economic benefits and social benefit is different, so much used in medium and high coal rank coal seam, high mechanical strength of coal seam and the mechanical properties stability; Geological condition requirements buried depth moderate, thickness of coal seam moderate, horizontal continuous stability distribution, coal gangue placed not development, structure stability, avoid faults and fracture zone. At the same time in order to maintain the stability of coal seam shaft, coal seam of slimhole drilling for general use (15.2 ㎝), so for drilling tools, measuring instruments and equipment performance and so on are out new requirements. More horizontal well drilling process CBM branches facing the main difficulties have: coal seam is fragile, and development of mutually perpendicular natural fractures, in this fragile strata of drilling, extremely easy cause underground collapse, stuck drill, even borehole scrap such complex accident; Coal seam is susceptible to pollution, reservoir protection is difficult, generally USES the inflatable drilling fluid, foam or formation water as coal seam segment of the drilling fluid system; Because more shallow buried coal seam, borehole curvature is bigger, drilling pressure to meet requirements, drill level well drilling column branch unlikely to occur fatigue damage, which led to the complexity in case; More horizontal well drilling process CBM branch belongs to new drilling process, involving many new tools and instruments. For example, for the two Wells connected electromagnetic measurement device, the small size of the geological oriented tools and efficient friction reduction short sub and so on, at the moment the equipment and instruments in China is still lacking.

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机器翻译错误多，
QQ 804989982
hsp697398@163.com 帮您解决翻译语法修改