地质勘探

Aiming at the geological defects in western loess highway region and its harmfulness for construction and management, we introduced multicomponent seismics method in shallow loess highway engineering exploration.

针对我国西部黄土公路下伏大量地质缺陷及其对公路交通建设和运营的危害性，将多分量地震勘探技术引入浅层黄土公路工程勘探中。

The paper is concentrated on the offshore wide angle reflection survey using ocean bottom seismography, including its principle, the deployment of OBS, processing of recording data, interpretation of OBS profiles, and modeling of sections.

对OBS广角反射地震法的原理，海上测量方法，资料处理，时间剖面解释及地下地质构造计算机模拟方法作了阐述，对OBS广角反射地震勘探法的成功范例——苏伊士湾高蒸发岩发育区结晶基底勘探作一扼要介绍。

Mainly four types of depositional systems were developed in the Silurian in the Tarim Basin.

近年来塔里木盆地志留系油气勘探的发现，使志留系研究重新受到重视，但仍存在一些制约勘探的基础地质问题需要深入研究。

Subsurface imaging is the primary aim of seismic exploration; the theory and techniques of seismic...

研究地下地质结构是地震勘探的主要目的，地震成像理论和技术是地震勘探的核心内容。

From true data processing, it can acguire abundant electrical information for all exploration area, which can not only reveal well-marked the electricity tendency of this distract under the line, hold and recognize the distribution of the electrical property objectively and completely, but also grasp some subtle geological information.

从实例处理来看，能为整个勘探区提取更丰富的电性信息，不但突出了整条测线的地下电性趋势，更客观、更全面地把握和认识勘探地区的电性分布规律，而且从宏观上把握了一些比较隐蔽的地质现象。

Altun foothill belt of western Qaidam basin is regarded as a major pre-exploration belt with abundant petroleum resources, high geological evaluation, low explorative degree and great potentials for prospecting.

柴达木盆地西部阿尔金山前带有着丰富的石油资源，是盆地目前地质评价较高、勘探程度较低、勘探潜力较大的重点油气预探区带。

A new integrated method was invented and found useful for trap appra isal at an early stage when the exploration was of low degree, short period, and full of great difficulties and risks, as that in the Kashan Exploration Block, Iran.

摘 要：针对伊朗卡山探区勘探程度低、周期短、难度大、风险高的特点，通过地球物理资料，特别是地震资料的处理和解释，结合探区外围的地质调查和油气田资料，进行了油气藏圈闭可靠性、储集封堵条件、有效性及含油气性等方面的地球物理资料预测，探索出了一套早期勘探区域圈闭评价的新方法。

The traditional economic evaluation of oil/ gas exploration projects is a single analysis essentially: either by characterizing the investment return gained from the ex ploration projects, or by weighting the geologic risk borne by the projects.

传统的油气勘探项目经济评价方法基本都是单一的分析：或表征勘探项目所取得的投资收益，或衡量项目所承担的地质风险。

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。

Based on summing up the experience of coalfields seismic explorationin mountain areas and lake districts, the authors describe in this paper the geophysical method employed in complex areas and its effects.

摘要以宁夏、山东的煤矿地震勘探为例，介绍了复杂地表工区地震勘探的方法与地质效果。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。