The design approach of balanced-pressure cementing is given for the wells with weak formations.

归纳给出了低压易漏井平衡压力注水泥设计的步骤。

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The balanced-pressure cementing designs are done for different kinds of casing cementing operations in Lu 9 Region.

针对陆9井区各种不同形式的固井，进行了平衡压力注水泥设计。

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Because foamed cement has gas and the properties of gas are the function of pressure and temperature, the conventional cementing theory can not be used in cementing with foamed cement.

由于在泡沫水泥中含有气体，其中气体参数又是温度和压力的函数，因此在固井施工设计中不能采用常规固井理论进行相关计算。

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Bartlit emphasized in his letter Thursday that cementing failures are a known hazard in the oil industry, with specific tests such as a "negative pressure test" and "cement evaluation logs" designed to identify cementing problems.

CNN: STORY HIGHLIGHTS