查询词典 dolomitization

Burial dolomitization is a critical model of dolostone reservoir genesis. Many issues involved in dolomitization diagenetic system, such as thermal fluid origin and its metasomatism process of burial dolomitization, later dissolution period and its process characteristics, have become the difficulties and frontier areas both for petroleum exploration and for scientific research in marine carbonate rock fields.

埋藏白云岩化是白云岩储层成因的主导模式，流体来源、交代过程、溶蚀期次和成因特征等一系列与其密切相关的白云岩化成岩系统，已成为当今碳酸盐岩领域最前沿的研究热点和困扰勘探实践的重要基础地质问题。

Reefs, reef-mounds and lime mud mounds are all carbonate buildups, and the reefs and banks are important targets for petroleum exploration The reefs, banks and mounds should be divided from each other not only in theory, but also in exploration practice, because of so many differences in sedimentary compositions, fabrics, environments, distribution in time and space, and the characteristics of petroleum geology If the original reef or bank itself was fine reservoir rocks, then it would become a better reservoir after the reservoirconstructive diagenesis The formation of a high quality carbonate reservoir is controlled by two factors: the sedimentary microfacies and the reservoirconstructive diagenesis The first is the basis for the formation of a high quality reservoir, and with the high energy reefbank facies as the best; the latter includes the cataclasis, the dolomitization and the karstification The dolomitization and karstification are the best for the formation of a high quality reservoir The karstification has the widest distribution, profoundest effect, and plays a vital role in the high quality reservoir forming The karst types are quite rich in the limestone reef or bank reservoir, including synsedimentary karst, penesedimentary karst, supergene karst and hydrothermal karst, and so does the dolomitization reef or bank reservoir The formation mechanism of synsedimentary karst and penesedimentary karst is related to the short time exposing and leaching of the cyclical highfrequency shallowupward sequence when the reefs or banks are forming The supergene karst is controlled by the exposing and leaching of tertiary cyclic sequence type I interface after the reefs or banks forming Thus, there developed a great deal of secondary corrosion pores, corrosion fractures and huge caves besides some original pores remained in the reef and bank reservoir Scarcely there are any original effective pores in reefmounds and lime mud mounds, especially in senkes among mounds, but secondary pores could be formed by karstification, and there would likely develop source rocks with high organic abundance

礁、礁丘、丘同属碳酸盐建隆，礁、滩是重要勘探目的层。但各自在沉积组分、组构、环境和时空分布，以及油气地质条件上迥然不同，因而无论从理论还是勘探实践上，都有必要将其各成体系划分开来。礁滩自身为好储集岩，当建设性成岩作用叠加后可形成好的储层。碳酸盐岩优质储层形成，主要受沉积微相与建设性成岩作用两大因素控制。前者是基础，并以高能的礁滩相带为最好；后者主要包括破裂、白云石化和溶蚀三大类，并以白云石化或溶蚀为最优，其中的溶蚀分布最广泛、影响最深刻而对优质储层形成起决定性作用。礁滩储层中的古岩溶类型最为丰富多彩，包括同生期、准同生期、表生期和埋藏期热流体岩溶的所有类型，白云岩化礁滩体也不例外。其中，同生准同生期岩溶的形成机制与礁滩沉积时高频层序旋回向上变浅序列的短暂暴露淋溶有关，表生期岩溶则受控于礁滩沉积后三级层序旋回Ⅰ型界面的暴露淋溶。由此，导致礁滩储层中除了可以也是唯一保存原生孔隙外，还发育了次生溶蚀孔洞缝和大型溶洞。礁丘、灰泥丘尤其是丘间洼地中发育高有机质丰度烃源岩；它们自身没有有效的原生孔隙，但岩溶作用可以形成次生孔隙。

Thus, the dolomitization mechanism in this area may be called "dolomitization through deep buried hydrothermal".

因此其白云化机制可称之为"深埋热液白云化"。

More attention is being focused on the deepburial closedsystem dolomitization. Some dolomitization of practical significance to the oil/gas reservoir and to the stratabounded deposits mainly occurred in closed system, which is different from the open system in the contribution to the change of reservoir space and the corresponding geochemical index.

3深埋藏条件下封闭系统的白云化作用受到关注：一些对油气储集空间和层控矿床有较大意义的白云化作用主要是在相对封闭条件下发生的，在对岩石储集空间的变化的贡献上以及在相应的地球化学指标上不同于开放条件下的白云化作用。

Based on study of main diagenesises and controlling factors of Carboniferous carbonate reservoirs of Kenjiyak and the central block of Zananor oil field, the paper showed that the dorag dolomitization is one of the most important and common genetic types of dolomite, and dolomite formed by dorag dolomitization is the most favorable reservoir.

通过对肯基亚克油田和扎纳若尔中区块油田石炭系碳酸盐岩储层的主要成岩作用和储层控制因素的分析，指出混合白云岩化作用是研究区最主要的、也是最普遍的白云岩成因类型，其形成的白云岩是最有利的储层。

Generally speaking, condensed marine water dolomitization, Sabkha model, mixing-zone dolomitization and burial adjustment are relatively of great importance.

理清白云岩成因问题，对于认识以白云岩及其相关的碳酸盐岩为储层的油气勘探工作尤为重要。

Major factors that have impact on the dolomite reservoir quality are originalsedimentary facies, dolomitization degree, dolomitization type, development degreeof tectonic fissure and property and intensity of deep burial corrosion.

影响白云岩储层质量的主要因素为：原始沉积相带、白云石化程度、白云石化类型、构造裂缝的发育程度和深埋溶蚀作用的性质和强度。

The authors studied the distri-bution of dolomitization and textures and structures of the rocks, analyzed tra...

最后通过实例说明了研究礁岩埋藏白云石化作用对油气、铅锌矿产勘探的实用意义。

The generation of high-quality carbonates reservoirs in the deep and ultra-deep formations mainly depends on dolomitization and dolomite karst.

深层与超深层优质碳酸盐岩储层的形成主要依赖于白云石化作用以及白云岩的岩溶改造作用。

Dolomitization is closely related to the sedimentary environment, and to some degree, the distribution of dolomite may be regarded as an indicator for microfacies.

白云岩化作用与沉积环境密切相关，白云岩的分布对沉积微相展布具有一定的指示意义。

The receding calculations and experiment analyses in this subject are built on the blood cast of pig tongue.

本研究课题的前期工作是采用猪舌血管铸型模拟人舌而进行的数值计算与实验分析。

"Each human infection constitutes an opportunity for genetic modification of the virus through reassortment, mutation, or both...."

&每一次人类的感染都暗藏着一次基因修改的机会，无论是通过病毒的整合、突变或者兼而有之。。。。&