Drilling a well in the broken carbonate strata where the pressure gradient is widely different, lost circulation is an important factor that makes the rigtime losed.
在压力梯度悬殊的碳酸盐岩破碎地层中钻井，井漏是损失钻机月的重要因素。
3
On the evidence to date he will think, he will take his time and he will put his chronicling of the death of a rig into the story of a life richly, interestingly lived.