该井钻探层位深、地层变化大，钻前异常地层压力预测尤为重要。
This well is characterized by deep drilling horizon and varied formation lithology, so its predrilling prediction of abnormal pressure is the most significant.
介绍地层变化复杂，无明显对比标志地区如何利用模拟测井曲线进行岩、煤层综合对比。
How to use simulated logging curve makes a synthetical contrast of rock and coal seam at complicated stratum and no obvious mark area are introduced.
一般地说，地面地质调查是一面前进，一面寻找地层和构造的缓慢变化。
The geological survey finds, typically, a slow change of formation and of structure as it progresses.
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