随着深部油气藏的勘探和开发，深井及超深井的数量大幅度增加，而深井超深井在高温高压条件下，窄安全密度窗口内的安全钻井是当前国内外都未能很好地解决的重大技术难题。
While under the condition of high temperature and high pressure, the safe drilling in thin safe density window is the technical difficulty that can not be solved well around the world.
最后综合考虑确定出各个区块的合理安全泥浆密度窗口。
Eventually, reasonable and securable drilling mud destiny of different blocks can be ascertained.
最后综合考虑确定出各个区块的合理安全泥浆密度窗口。
Eventually, reasonable and securable drilling mud destiny of different blocks can be ascertained.
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