随着牛74块开发程度的不断提高，滚动扩边的难度越来越大。
With the increasing of development degree of Block Niu 74, it is getting more and more difficult to expand the reserves exploitation.
该方法为老区扩边提供了新的开发井位，显示了良好的应用前景。
This method can provide new developed well location for extending border in old region.
可选装预扩幅、归中等部件，适用于卷边的织物。
Pre-spreading part and centering device are optional parts, suit for edge curling fabrics.
并根据目前滑体的稳定程度、下滑速率和该帮边坡即将处于扩帮范围等实际情况，提出了处理建议。
The handle suggests are given according to the present sliping stability, sliping rate and the hillside is about to enlarging scale.
然后根据井组储量计算原理，确定了内部井不需要外扩，边井和角井需要外扩的原则。
Then, with the reserve calculation principle, it was certain that the interior wells need not extending while edge wells and corner wells need extending.
然后根据井组储量计算原理，确定了内部井不需要外扩，边井和角井需要外扩的原则。
Then, with the reserve calculation principle, it was certain that the interior wells need not extending while edge wells and corner wells need extending.
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