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31.
致密砂岩气藏具有广阔的资源前景,可以有效地弥补常规天然气资源的不足。但其成藏过程和气水分布关系的研究是一个相对不足而又非常重要的领域,它的完善直接关系到勘探的成败。本文正是针对这一研究领域,采用物理模拟实验方法,通过实际资料的调研,建立了二维的实验模型,对致密砂岩气藏的成藏过程和气水分布关系进行了模拟。实验结果表明,致密砂岩气藏的成藏过程可以分为三个阶段,分别为:充注前期(能量积累阶段)、充注期(幕式充注成藏阶段)、充注后期(气藏保存阶段)。其中,幕式充注成藏阶段是致密气藏成藏的关键时期。而导致气水分布关系复杂的原因在于储层的非均质性。 相似文献
32.
Quantitative estimate of residual or palaeo-oil column height 总被引:1,自引:0,他引:1
Keyu Liu Xiongqi Pang Zhenxue Jiang Peter Eadington 《Journal of Geochemical Exploration》2006,89(1-3):239
A method to quantitatively estimate residual or palaeo-oil column heights is proposed using criteria based on the presence or absence of oil shows in a single heterogeneous reservoir rock sample. The residual or palaeo-oil column height below the sample is constrained through the determination of the displacement pressure of regions in the sample containing oil shows (Pd-o) and the displacement pressure for regions that are devoid of any evidence of oil shows (Pd-w). The height of the residual or palaeo-oil column below the sampling depth can then be estimated to be greater than the equivalent height corresponding to Pd-o, but less than the height corresponding to Pd-w. Three examples from two basins in China were investigated using the method to determine their residual and palaeo-oil column heights. 相似文献
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FAN Chunyan SONG Yan JANG Zhenxue LUO Qun YAO Limiao and GAO Xiongxiong 《《地质学报》英文版》2015,89(Z1):27-28
<正>It is significant to study the reservoir features and formation mechanisms of unconventional reservoirs.The reservoir characteristics of tight sandstone reservoirs in the Huahai Depression,Jiuquan Basin are systematically described in this paper,and in particular the micro pore structures of observed core samples are qualitatively classified.Fundamentally,this research is benefit for the 相似文献
36.
<正>The huge resources potential of shale oil has been paid more and more attention.The method to correctly evaluate the shale oil potential is the key for resources evaluation.Some foreign scholars argued that the amount of hydrocarbon-bearing per unit organic carbon(S_1/TOC)was effective to determine the producible shale oil,known as"Oil crossover",while the method has some limitation 相似文献
37.
<正>The study of microscopic pore structures is of great significance to the assessment of gas adsorption capacity of shale reservoirs.Characterization of microscopic pore structures and its effect on methane adsorption capacity in marine shales have been investigated widely,however, 相似文献
38.
JIANG Zhenxue TANG Xianglu LI Zhuo JI Wenming GAO Xiaoyue YUAN Yuan and WANG Pengfei 《《地质学报》英文版》2015,89(Z1):250-250
<正>The shale gas exploration in China has achieved remarkable profits,and four national shale gas demonstration zones(Fuling Jiaoshiba,ChangningWeiyuan,Zhaotong,and Yanchang)have been established.Recently,nearly 400 drilling wells have been accomplished,including 143 vertical wells and 130horizontal wells.But the shale gas production varies 相似文献
39.
LI Zhuo JIANG Zhenxue LIU Luofu GAO Xiaoyue JI Wenming XIONG Fengyang and SONG Yan 《《地质学报》英文版》2015,89(Z1):263-263
<正>Shale gas exploration has made great progresses in ancient marine shales in southern china,especially in the Jiaoshiba-Fuling area.However,rare succeed exploration and production cases outside Sichuan basin were reported.The main reason for this issue can be attributed to the misunderstandings of the mechanisms of shale gas 相似文献
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<正>Characteristic of shale reservoir is important to the occurrences of shale gas,gas content and the exploitation(Chalmers and Bustin,2008;Gasparik et al.,2013).The lacustrine shale at oil window stage is quite different from marine shale.This study use quantities of testing data from cores and outcrops from the basin edge to analyze the reservoir characteristics in Lacustrine Shale of Middle 相似文献