地层

The relative ratio of the formula can reach 0.992 with the average absolute error of 0.546%.

根据声波地层因素公式对储层的描述，能够全面了解文留油田φ与t之间的变化规律，有利于提高测井解释符合率。

The frequency selecting absorbing effect of stratum medium on seismic wave keeps more information of medium characteristics in the low-frequency components.

地层介质对地震波的这种选频吸收作用使得在地震波的低频成分中保留了更为丰富的反映介质性质的信息。

The result shows that JBD has different water absorbing-expanding properties in different medium, after absorbing it has very high strength and toughness, it also has good temperature resistant property and good efficiency of water plugging, with its temperature resistant capacity being higher than 120^0 and water plugging efficiency over 99% and oil plugging efficiency less than 15%.

但由于它吸水膨胀速度太快、吸水膨胀倍数过大、对地层的封堵强度较低、生产成本较高，使它在石油开发中的应用受到一定的局限。

These strata, lying apparently in contact, are in fact abysmally separated.

这些表面上相触的地层实际上相隔很远。

Often, researchers have simply called those objects Median that were discovered under the stratum they had identified as Achaemenid .

通常，研究人员只是要求这些物品中被发现的地层下，他们已经查明的阿契美尼德。

According to a point of layer acoustic velocity value by displacement pressure sesmic interval velocity and acoustic velocity,it changes with depth obviously.

利用地震层速度和声波速度转换的排替压力只是相对于地层某点的排替压力值，它随深度变化较为明显。

The models for calculating formation fracturing pressure are obtained on the basis of fracturing criterion, and the reliability of these models is proved by the comparison of the calculated formation fracturing pressures of several wells in an oilfield with the actu...

结果表明，运用断裂理论建立的破裂压力计算模型由于考虑了裂隙的存在，与地层的实际更为吻合，因而准确性更高，适用范围更广。其计算结果与现场实测值更为接近，从而也验证了模型的可靠性。

There are some aerolites that keep original shape. I even found one round aerolite in earth in original place.

也有完整的，我也见到过锲入地层中保持原状的完整玻璃陨石。

This equipment use and popularity has the extremely vital significance to protect oil aerosphere, reduce the recovery cost, enhance the recovery ratio, protect environment.

作业完毕后，尚需把高比重的压井液替换出来，最为严重的是高比重压井液对地层造成污染和堵塞，导致区块内油井产量降低和注水井的过早损坏。

The paper studies the rational back aggraclation width of yellow river dike with reliable theory,researches and formulates the finite element reliability program of Monte-carlo filtration for calculate the failure probability of filtration stability for soil body of different distance from slope base of yellow river dike under design flood level,thus determines the rational back aggradation width.

利用可靠性理论对黄河堤防淤背设计的合理宽度问题进行了系统的分析研究，充分考虑了黄河堤防土体参数的随机变异性，研制了蒙特卡洛渗流有限元可靠度程序，用来计算在设计洪水位下距黄河堤防背河坡脚不同距离的地层土体渗流稳定破坏概率，从而确定合理的淤背宽度。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。