碳酸盐

Carbonate rocks are characterized by multiple pore types, large variation of pore diameters, and complex structure of pore system.

碳酸盐岩的孔隙类型多，孔径变化范围大，孔隙系统结构复杂，研究难度大。

This paper introduced some methods that can accurately calculate the porosity and permeability of carbonate rocks. These methods are rock physical inversion, digital image analysis, and permeability model based on lab data.

介绍了提高碳酸盐岩孔隙度和渗透率计算精度的几种方法，即岩石物理反演法，数字图像分析技术，基于实验数据的渗透率模型法。

Guizhou is a plateau with highly developed karst environment, and 73% of the total area is covered by soluble carbonate rocks.

贵州是一个喀斯特十分发育的高原山区，可溶性碳酸盐岩分布面积占全省总面积的73％，生态脆弱，自然灾害频繁，严重的制约了全省的经济发展。

This paper introduced some methods that can accurately calculate the porosity and permeability of carbonate rocks. These methods are rock physical inversion, digital image analysis, and permeability model based on lab data.

介绍了提高碳酸盐岩孔隙度和渗透率计算精度的几种方法，即岩石物理反演法、数字图像分析技术、基於实验数据的渗透率模型法。

Earth has vast deposits of carbonate rocks such as limestone, which precipitated from warm, carbon dioxide-rich oceans.

地球上有大量碳酸盐岩石的堆积，如石灰岩等，是在温暖、富含二氧化碳的海洋中沉淀而形成。

Stalagmites form when water trickles through crevices in a cave's ceiling and drips to the floor.

水流从山洞顶部顺石缝流下来，岩石上的一些溶解钙碳酸盐也冲刷下来。

The 3ml aliquots of sample were buffered by adding 20l of 0.25M sodium carbonate solution.

样品的三毫升等分的缓冲加入20？的0.25米钠L碳酸盐溶液中。

, 5. 0±0.4 ‰. They are different obviously from those of fossil brachiopods in other paleozoic periods and modern shells.

因此无论是δ〓O，还是δ〓C都与古生代其它地质时期以及现代腕足生物壳体存在很大差别，表明地质历史时期碳酸盐岩的原始氧、碳同位素组成并不是稳定不变的。

It is possible that the carbonate buildups exist in the main part of the folded structures and were thickened by the latter faults and formed large overlying composite folds.

分析认为，构造的主体存在碳酸盐岩生物建隆块体的可能，后期被断裂复杂化形成大型叠置复合褶皱。

Zhangtianqu oilfield locates in the center of Yixia west slope, Ordos Basin. The field has a complex hydrocarbon-bearing bed set. On principle that lithology and reservoir can be identified, geologic parameters such as shale content, porosity, and oil saturation can be determined and be used to distinguish oil-bearing formation from water formation, as well as costeffectiveness, an improved logging interpretation model has been established. The model extends conventional single porosity interpretation methodology to identify various lithologies (such as coal seam, radioactive sandstone, carbonate rock besides sandstone and shale) by comprehensively analyzing the logging responses of sand reservoirs on economic logging set of acoustic logs and induction logs. Applications on real data show the improved model is superior in identifying complex lithology with conventional logging data.

张天渠油田位于鄂尔多斯盆地伊陕斜坡西部中段，该油田含油层系复杂，在岩性地质特征分析时，本着&能确定岩性，划分储层，提供泥质含量，孔隙度，含油饱和度等地质参数，区分油层，水层，以及经济适用&的原则，选用经济适用的声感组合测井系列，通过综合分析砂岩储层的测井响应特征，对传统单孔隙度解释方法进行改进，增加识别多种岩性成份(除砂岩，泥岩外，局部含有煤岩，放射性砂岩，碳酸盐岩等复杂岩性)的功能，建立了适合该油田的测井解释模型，提高了利用常规测井资料识别复杂岩性的能力和测井参数的解释精度，为油田勘探开发提供依据。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。