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Petroleum Science 2014年第2期11卷 293-299页

作者： pan baozhi Li Ding Chen Gang Wang Qincong Ma Lixin Liu Sihui College of Geo-Exploration Science and Technology Jilin University Xi'an Research Institute of China Coal Technology & Engineering Group Corp

Temperature curves reflect geothermal gradients and local temperature anomalies, thus providing a new understanding of the underground reservoir conditions. When encountering caverns or fractures and fissures during drilling, lost circulation may occur and result in a change to the original formation temperature field, and in severe cases, even the conventional open hole well logging data cannot be obtained. This paper uses finite element analysis software COMSOL to establish a heat transfer model for the wellbore/reservoir formation system during drilling and shut-in in the presence of lost circulation, and a case study is made in a carbonate reservoir in the Tahe oilfield. On the basis of the above, we analyze the temperature distribution in the leakage zone, and the studies have shown that the leakage and petrophysical properties have an impact on the temperature of the wellbore and formation, hence we can estimate the reservoir permeability using the temperature data. In addition, the determination of the temperature recovery time after some drilling fluids have leaked into the formation will help in recognizing the subsurface temperature field of the carbonate formation correctly, thus enhancing production logging interpretation accuracy and improving the understanding of later measurements.

关键词： Temperature field numerical simulation finite element drilling fluid invasion leakage

Geochronological and geochemical constraints on the granitic gneiss in the Huozhou Complex: implications for the tectonic evolution of the Trans-North China Orogen

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Acta Geochimica 2023年第1期42卷 153-181页

作者： Chong Peng Haiyan Liu Ruiying Zhang Cremilda Samuel Jofrisse Linfu Xue baozhi pan College of Geographical Sciences Shanxi Normal UniversityTaiyuan 030031China Key Laboratory of Deep-Earth Dynamics of Ministry of Natural Resources Institute of GeologyChinese Academy of Geological SciencesBeijing 100037China State Key Laboratory of Continental Dynamics Department of GeologyNorthwest UniversityXi’an 710069China College of Geo-Exploration Science and Technology Jilin UniversityChangchun 130026China College of Earth Sciences Jilin UniversityChangchun 130061China School of GeoSciences University of EdinburghEdinburgh EH93JWUK

The Trans-North China Orogen is a major Neoarchean Paleoproterozoic collisional orogenic belt above the North China Craton, formed due to prolonged and complex processes. Even though many NeoarcheanPaleoproterozoic magmatic and metamorphic activities have been reported, due to the Huozhou Complex’s small outcropping range, little attention has been paid to the origin of various igneous rocks of the Huozhou Complex in the center of the Trans-North China Orogen. The Huozhou Complex, located south of the Luè liang, Wutai, and Hengshan complexes, is an important window into the Early Precambrian structure and evolution of the North China Craton. Its magma and metamorphism are crucial to understanding the development of the structural evolution of the Trans-North China Orogen. The Huozhou metamorphic complex area exposes a range of Precambrian metamorphic rocks, among which the most extensively dispersed is felsic biotite plagioclase gneiss. In this study comprehensive geological field survey, micropetrology,chronology, geochemistry, and Hf isotope analysis were carried out for the Qinggangping and Anziping gneiss in the north of the Huozhou Complex. The results show that the magmatic zircon age of the Qinggangping gneiss is2196 ± 14 Ma, and its protolith is I-type granite, formed by partial melting of igneous rocks in the absence of weathering. Its source is mainly the juvenile crust from depleted mantle dating 2431–2719 Ma, with a small amount of mantle-derived material. The Anziping gneiss has a metamorphic zircon age of 1931 ± 13 Ma with an S-type granite protolith belonging to peraluminous *** Anziping gneiss is formed by recycling pre-existing crustal components at 2613–2848 Ma. A minor quantity of mantle-derived magma is also introduced to the crust simultaneously. The samples of Qinggangping gneiss and Anziping gneiss show the characteristics of obvious negative Nb, Ti, and P elements in the spider diagram of primitive mantle standardization. This implies

关键词： Zircon U–Pb dating Geochemistry Huozhou complex Trans-North China orogen Biotite plagioclase gneiss North China craton

Distinguishing volcanic lithology using Self-Organizing Map

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Global Geology 2007年第1期10卷 74-77页

作者： Ping ZHANG baozhi pan College of Geoexploration Science and Technology Jilin University Changdzun 130026 China

Self-Organizing Map is an unsupervised learning *** has the ability of self-organization,self-learning and side associative *** on the principle it can identified the complex volcanic *** to the logging data of the volcanic rock samples,the SOM will be trained,The SOM training results were analyzed in order to choose optimally parameters of the *** identifying the logging data of volcanic formations,the result shows that the map can achieve good application effects.

关键词： Self-Organizing Map volcanic rock lithology recognition logging data

Experimental study on parameter determination of fluid replacement equation for volcanic reservoirs

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Global Geology 2020年第4期23卷 234-240页

作者： ZHOU Weiyi pan baozhi GUO Yuhang College of Geo-Exploration Science and Technology Jilin UniversityChangchun 130026China

In this study,the parameters of Gassmann equation based on fluid replacement theory are studied by measuring the acoustic velocity during the evaporation process of volcanic rocks in Nanpu *** experimental data show that with the decrease of porosity of tight volcanic rock,the acoustic velocity difference between dry and wet rock samples increases,which is conducive for the identification of gas bearing reservoirs with acoustic log *** fluid bulk modulus distribution of volcanic rocks in the study area conforms to Brie model,and the value of empirical coefficient e is related to *** experimental results show that there is a linear relationship between the P-wave transit time of dry and wet rock *** porosity to calculate the acoustic transit time of saturated rock samples,and taking it into the experimental formula,we can get the P-wave transit time and bulk modulus of dry rock *** to the bulk modulus of mixed fluid,dry rock and rock matrix determined by experiments,the saturation of volcanic reservoir in Nanpu area is calculated by Gassmann equation,which is in good contrast with the conclusion of gas *** study provides an experimental basis for quantitative evaluation of volcanic gas reservoirs using seismic and acoustic logging data.

关键词： volcanic rock acoustic velocity Gassmann equation parameter determination saturation calculation

松辽盆地火山岩岩性识别中测井数据的选择及判别方法

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石油学报 2012年第5期33卷 830-834页

作者：张莹潘保芝广东海洋大学海洋遥感与信息技术实验室广东湛江524088 吉林大学地球探测科学与技术学院吉林长春130026

依照松辽盆地深层火山岩岩性分类方案中的二级分类类型,对32口有准确岩心薄片定名资料的火山岩井段测井响应特征进行了总结,根据各测井响应区间值建立一个假设随机样本,应用逐步判别分析方法,在多个测井参数中按其对岩性分类判别能力的... 详细信息

依照松辽盆地深层火山岩岩性分类方案中的二级分类类型,对32口有准确岩心薄片定名资料的火山岩井段测井响应特征进行了总结,根据各测井响应区间值建立一个假设随机样本,应用逐步判别分析方法,在多个测井参数中按其对岩性分类判别能力的大小进行筛选,最终选取钾、铀、光电吸收截面指数、中子及自然伽马5个具有显著判别能力的参数,并在Bayers准则下建立判别函数,选择分类效果明显的两个判别函数建立岩性识别图版,克服了测井参数引入过多对岩性识别模型的不利影响。利用上述方法对松辽盆地徐家围子断陷火山岩井段的50个资料点的实测数据进行了处理,其回判数点正确率为88%。

关键词：松辽盆地火山岩岩性识别测井参数选取判别分析常规测井

Determination method of volcanics variable matrix parameters

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Global Geology 2012年第2期15卷 166-171页

作者： HAN Xue pan baozhi ZHANG Yi College of Geo-Exploration Science and Technology Jilin University Changchun 130026 China

The volcanics matrix parameters are variable in different areas and even in different intervals of a same well,due to its complicated mineral compositions and variable mineral contents. The determination of matrix parameters is significant because it has an effect on the porosity calculation accuracy. The authors proposed a simple but useful dual-component model to calculate porosity,and the results are compatible with the core porosity.

关键词： volcanics variable matrix parameters ECS porosity

Methods of identifying gas-bearing reservoirs by logs and applications of volcanic formations

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Global Geology 2007年第1期10卷 83-87页

作者： Lihua ZHANG baozhi pan Gangyi SHAN College of Geoexploration Science and Technology Jilin University Changchun 130026 China

The authors generalized the methods how to identify and evaluate gas zones using logs,and put forward the methods of crossplots and overlays of porosity logs on the identification of volcanic gas-bearing reservoirs in the northern Songliao Basin with good *** study provides technical clues in deep formations and offers references for other areas to identify oil and gas layers.

关键词： gas-bearing identification volcanic reservoir logs application

Influence of wettability of shaly sandstone on rock electricity parameters

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Global Geology 2020年第3期23卷 191-198页

作者： ZHAO Yongqiang pan baozhi SI Zhaowei LIN Fawu College of Geo-Exploration Science and Technology Jilin UniversityChangchun 130026China Petro China Jidong Oil Field Company Tangshan 063000China

It has been found that the existence of chlorite and illite will lead to the rock wettability of oil *** and illite are developed in shaly sandstone of Yingcheng Formation in Longfengshan area,the saturation index n of 7 rock samples is very high,with the highest of 14.57,whereas the cementation index m is *** X-ray diffraction of clay and whole rock analysis of 7 shaly sandstone samples are carried out,and the relationship between chlorite and illite content vs.m and n is *** is concluded that the low m value and high n value are caused by the wettability of *** order to verify the influence of wettability on the parameters of rock electricity,this paper discusses the method of making artificial shaly sandstone and the control of *** study provides certain reference for determining the saturation model of shaly sandstone and improving the logging interpretation accuracy of shaly sandstone reservoirs.

关键词： wettability rock electricity parameters chlorite illite shaly sandstone

Analysis on structure of igneous formation with fractal dimension of logs

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Global Geology 2007年第1期10卷 55-58页

作者： Xue YANG baozhi pan Ying ZHANG College of Geoe.Geoexploration Science and Technology Jilin University Changchun 130026 China

Reflecting the structure of igneous formation by calculating fractal dimension of logs,the fractal dimension of pyroclastic is larger than *** of pyroclastic is more complicated than that of lava,so reflecting the structure of igneous formation's complexity with fractal dimension is *** is feasible to reflect the structure of igneous formation's complexity with fractal dimension.

关键词： log igneous rock fractal

Influencing factors of gas content evaluation for shale gas:a case study of Lower Paleozoic Wuling fold belt in Upper Yangtze Basin

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Global Geology 2014年第1期17卷 18-23页

作者： MIAO Qishi pan baozhi ZHAI Ting YANG Mingyu Logging Engineering Company East China Petroleum BureauSinopec College of Geo-Exploration of Science and Technology Jilin University

Factors of shale gas accumulation can be divided into the external and internal factors,according to accumulation mechanism and characteristics of shale gas. The internal factors mainly refer to parameters of organic geochemistry,mineral components and physical parameters. Six factors were presented in this study,i. *** matter,maturity,quartz,carbonate,clay mineral and pore. The external factors mainly refer to geologic environment of shale gas reservoir,including four factors: temperature,pressure,depth and *** on the experiment results of 26 samples of drilling cores from Wuling fold belt in Lower Paleozoic Silurian of the Upper Yangtze Basin,combined with the integrated analysis of geology,logging and test,the correlation of the gas content of shale gas to the above-mentioned ten factors was concluded. Six important evaluation indicators were preliminarily established in the gas-bearing core area of marine shale in the Upper Yangtze Basin.

关键词： shale gas gas content influencing factor marine shale Upper Yangtze Basin