地层

The seismogram constructed from calculated density, however, cannot be matched well with seismic traces in saliniferous strata.

在含盐地层中，仅靠速度及其转换的密度制作的合成记录无法与实际地震剖面很好地对比。

The paper has given an overview on domestic and abroad research status of the climatic changes during The Little Ice Age, mainly depending on the different proxies such as ice cores, tree-ring, lake sediment, documentary and desert semimetal strata.

并重点从冰芯、树轮、湖泊沉积、历史文献和沙漠地层等方面综述了近年来国内外对小冰期气候变化的研究现状。

And the key is to take advantage of the physical and chemical properties of shale or mud to enable the shale or mud to form a semipermeable membrane or form a high quality partition membrane on the wall of the well, so as to prevent the mud from flowing into the formation to effectively stabilize the wall of the well and protect the reservoir.

水基钻井液成膜技术是当今研究的热点，其核心技术是利用页岩或钻井液的物理、化学特性，使页岩或钻井液具有半透膜的性能或在井壁上形成一层较高质量的隔离膜，阻止钻井液向地层的进一步滤失，从而有效地稳定井壁和保护油气层。

Based on the analysis of datum cycle markers in logging,drilling and seismic data,3 moderately-long-term(MSC3-MSC5) and 15 short-term cycles(SSC13-SSC27) were identified in the formation using the concept of high resolution sequency stratigraphy.

在对测井、钻井及地震资料的基准面旋回识别标志进行分析的基础上，运用高分辨率层序地层学原理，在下石盒子组识别出3个中期旋回(MSC3—MSC5)和15个短期旋回(SSC13—SSC27)。

The new method can increase the permeability of porous media by utilizing the shear force resulted from interference of two shock waves.

该方法利用2个冲击波干涉时形成的剪切力在储油介质中制造裂缝，以提高介质的渗透能力，进而对远井地带的地层进行改造。

There were only 15samples recovered in the sidewall coring with the rest failed because the formation is too hard.

由于地层太硬，井壁取心只取了15颗，其他是空的。

The Tianlu sandstone copper deposits located in the Silurian period stratum that belong to the northern part of north Qilan orogenic belt. The ore bed is hosted in the basal gray green layer of Hanxia Group or the graygreen interbed in the purplish layer.

摘 要：北祁连天鹿砂岩铜矿床产在北祁连造山带北部志留纪地层中，矿层产于旱峡组灰绿色岩层底部或紫红色岩层的灰绿色夹层中，具有稳定的层位特征。

Most of them are Late Ordovician and early Silurian corals with the highest diversity all over the world.

现统计扬子区中奥陶世至晓志留世四射珊瑚约有117个属，其中以晚奥陶世和早志留世珊瑚属数最多。117个属中至少有30个属最早出现在扬子区中、晚奥陶世和早志留世地层。

In this paper, we establish a method to determine the resitivities of the earth and diameter of invaded zone simutaneously,using the deep and shallow apparent resitivitics,and propose a new algorithm. The main advantages of our method is that the selection of the initial value is need not, but in proviously work, it is nescssary and it must close to real values.

成功地解决了由双侧向测井深、浅视电阻率同时反演地层真电阻率和等效侵入带直径问题，建立了可靠的反演算法，此算法的最主要优点在于它不依赖于初值的选取，因而是真正具有工程实用价值的算法。

Combined with granularity analysis, characteristics of fluvial sand body morphology and sinuosity of the river, the sedimentation of Guan(1+2) sand sets was defined on the basis of the stratigraphic subdivision and correlation.

在地层划分和对比的基础上，结合粒度分析、河流砂体形态、河流曲度等特征，对孤岛油田馆（1+2）砂层组沉积模式进行了研究。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失