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Study on forward modeling of through-casing resistivity logging

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Science china Earth Sciences 2008年第S2期51卷 207-211页

作者： GAO Jie1,LIU FuPing2,BAO DeZhou3.CHENG Xi3.& ZHANG YuLing4 1 china University of petroleum,Beijing 102249,china 2 Beijing {3. of Graphic Communication,Beijing 102600,china 3.0} petroleum Logging CO. LTD.,Xi’an 710021,china 4 china National Logging Corporation,Beijing 100101,china china Univ Petr Beijing 102249 Peoples R China Beijing Inst Graph Commun Beijing 102600 Peoples R China china Petr Logging CO LTD Xian 710021 Peoples R China china Natl Logging Corp Beijing 100101 Peoples R China

Through-casing resistivity logging (TCRL) is a new kind of logging method for formation evaluation,reservoir monitoring and saturation changes tracking. In this paper,the basic principle of TCRL is de-tailed,and the modified transmission line equation method (MTLEM) is first proposed in china. The MTLEM has been employed to simulate the responses of TCRL,on the basis of which,the effects of formation resistivity,cement and casing on the responses of TCRL are analyzed,and the signals in-duced in different formations are also calculated,which can help the design of TCRL tool and data processing and interpretation in china.

关键词： through-casing resistivity logging (TCRL) modified transmission line equation method (MTLEM) casing cement sheath

Hydrocarbon enrichment characteristics and difference analysis in the TZ1-TZ4 well block of the Tarim Basin

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petroleum Science 2010年第2期7卷 201-210页

作者： Jiang Zhenxue Pang Xiongqi Yang Haijun Li Zhuo Xiang Caifu Gu Qiaoyuan State Key Laboratory of petroleum Resources and Prospecting Beijing 102249 China Basin and Reservoirresearch Center China University＂ of Petroleum Beijing 102249 China exploration and Development institute of the Tarim Oilfield Company PetroChina Korla Xinjiang 841000 China

The reservoirs in the TZ1-TZ4 well block of the Tarim Basin are complex, and the hydrocarbon enrichment shows differences. The three Carboniferous oil layers are characterized by ＂oil in the upper and lower layers and gas in the middle＂ in profile and ＂oil in the west and gas in the east＂ in plane view. In order to discuss the complex reservoir accumulation mechanisms, based on the petroleum geology and reservoir distribution, we studied the generation history of source rocks, the fault evolution and sealing, the accumulation periods and gas washing, and reconstructed the accumulation process of the TZ1-TZ4 well block. It is concluded that the hydrocarbon enrichment differences of oil layers CIII, CII and CI were caused by multiple sources and multi-period hydrocarbon charging and adjustment. The CII was closely related to CIII, but CI was formed by reservoir adjustment during the Yanshan period and was not affected by gas washing after it was formed. During the Himalayan period, different degrees of gas washing in the east and west led to hydrocarbon enrichment differences on the plane. The Carboniferous accumulation process of two-stage charging and one-stage adjustment is summarized： oil charging during the late Hercynian period is the first accumulation period of CIII and CII; oil reservoirs were adjusted into CI in the Yanshan period; finally gas washing in the Himalayan period is the second accumulation period of CIII and CII, but CI was not affected by gas washing. This complex accumulation process leads to the hydrocarbon enrichment differences in the TZ1-TZ4 well block.

关键词： Tarim Basin enrichment difference multi-source and multi-period charging accumulation process

Discovery of Cu-Zn,Cu-Sn intermetallic minerals and its significance for genesis of the Mianning-Dechang REE Metallogenic Belt,Sichuan Province,china

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Science china Earth Sciences 2006年第6期49卷 597-603页

作者： XIE Yuling1, HOU Zengqian2, XU Jiuhua1, YUAN Zhongxin2, BAI Ge2 & LI Xiaoyu3.1. Civil and Environmental Engineering School, University of Science and Technology Beijing, Beijing 100083. china 2. institute of Geology, Chinese Academy of Geological Sciences, Beijing 10003., china 3. The 109th Geological Team, Sichuan Bureau of Mineral {3., Chengdu 610100, china 1. Civil and Environmental Engineering School University of Science and Technology Beijing Beijing 100083 China 2. institute of Geology Chinese Academy of Geological Sciences Beijing 100037 China 3. The 109th Geological Team Sichuan Bureau of Mineral Exploration Chengdu 610100 China

Mianning-Dechang Himalayan REE Metallogenetic Belt in Sichuan Province lies along the western margin of the Yangtze Craton. We have conducted detailed mineralogical studies on ore minerals collected from Maoniuping and Dalucao, the two largest deposits in the belt. With optical microscope, SEM/EDS, and EPMA, three rare intermetallic minerals, i.e., zinccopperite (Cu2Zn), Sn- bearing native copper, and Cu-bearing jupiter were found to occur in the main ore along with barite, fluorite, apatite, sulfide and bastnaesite. Since the conditions under which zinccopperite and Sn- bearing native copper formed are quite unique, finding of these minerals, for the first time in domestic REE deposits, has significant implications for the genesis of the ore deposits in which they occur. In comparison with Cu-Zn intermetallic minerals in other occurrences, we propose that the formation of this REE metallogenetic belt is associated with fast upwelling of the Himalayan magma from deep source.

关键词： Mianning-Dechang REE metallogenetic belt, Cu-bearing intermetallic minerals, EPMA, genesis significance, deep source magmatic activity.

TTHE METHODOLOGY OF petroleum DEVELOPMENT GEOLOGY(Ⅲ)

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石油勘探与开发 1996年第4期 78-82页

作者： Qiu Yinan (research institute of petroleum {3. and Development, CNPC, Beijing, 100083. P.R.china)

ＴＨＥ　ＭＥＴＨＯＤＯＬＯＧＹ　ＯＦ　ＰＥＴＲＯＬＥＵＭ　ＤＥＶＥＬＯＰＭＥＮＴ　ＧＥＯＬＯＧＹ（Ⅲ）ＴＨＥＭＥＴＨＯＤＯＬＯＧＹＯＦＰＥＴＲＯＬＥＵＭＤＥＶＥＬＯＰＭＥＮＴＧＥＯＬＯＧＹ（Ⅲ）￥ＱｉｕＹｉｎａｎ（Ｒ...

ＴＨＥ　ＭＥＴＨＯＤＯＬＯＧＹ　ＯＦ　ＰＥＴＲＯＬＥＵＭ　ＤＥＶＥＬＯＰＭＥＮＴ　ＧＥＯＬＯＧＹ（Ⅲ）ＴＨＥＭＥＴＨＯＤＯＬＯＧＹＯＦＰＥＴＲＯＬＥＵＭＤＥＶＥＬＯＰＭＥＮＴＧＥＯＬＯＧＹ（Ⅲ）￥ＱｉｕＹｉｎａｎ（ＲｅｓｅａｒｃｈＩｎｓｔｉｔｕｔｅｏ...

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Efficient computation of the compositional model for gas condensate reservoirs

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Communications in Nonlinear Science and Numerical Simulation 2000年第4期5卷 141-146页

作者： Jifu ZHOU, Jiachun LI and Jigen YE (institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, china The research institute of petroleum exploration and Development, Beijing 100083. china) (Received December 2, 2000) institute of Mechanics Chinese Academy of Sciences Beijing 100080 China Res. Inst. Petrol. Explor./Devmt. Beijing 100083 China

In this paper, a direct method, unsymmetric-pattern multifrontal factorization, for a large sparse system of linear equations is applied in the compositional reservoir model. The good performances of this approach are shown by solving the Poisson equation. And then the numerical module is embedded in the compositional model for simulating X15(3. gas condensate reservoir in KeKeYa gas field, Northwest china. The results of oil/gas reserves, variations of stratum pressure and oil/gas production, etc. are compared with the observation Good agreement comparable to COMP4 model is achieved, suggesting that the present model is both efficient and powerful in compositional reservoir simulations.

关键词： gas condensate reservoir compositional model sparse matrix

Fifty Years of Dedication to Technology Dissemination,New Journey Ahead with Splendid Chapter:To the 50^(th) Anniversary of petroleum exploration and Development

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petroleum exploration and Development 2024年第1期51卷 F0002-F0002页

作者： Editorial Office of petroleum exploration and Development 不详

As the New Year kicks off,it's also time to celebrate the 50^(th) Anniversary of petroleum exploration and *** the past 50 years,petroleum exploration and Development has been endeavoring to disseminating technology,witnessing and recording the glorious history of china's oil industry developing from weak to *** the new era,we have been focusing on theoretical innovation and technology advancement in oil and gas exploration and development,taking an edge on the latest development of the industry,continuously improving the quality of our journal,and leading the journal in a way of high quality and with special features.

关键词： journal petroleum recording

Impact of rock anisotropy on fracture development

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Progress in Natural Science:Materials International 2008年第11期18卷 1403-1408页

作者： Lianbo Zeng~(a,b,*) Jiyong Zhao~c Shengju Zhu~c Weiliang Xiong~c Yonghong He~c Jianwen Chen~c a Key State Laboratory of petroleum Resource and Prospecting in china University of petroleum,Beijing 102249,{3. b Resources and Information Faculty,{3. University of petroleum,Beijing 102249,{3. c exploration and Development research institute,Changqing Oilfield branch,Xi’an 710021,{3. Key State Laboratory of petroleum Resource and Prospecting in china University of petroleum Beijing 102249 China Resources and Information Faculty China University of Petroleum Beijing 102249 China exploration and Development research institute Changqing Oilfield Branch Xi’an 710021 China

Experiments on uniaxial and triaxial rock mechanics and rock acoustic emissions have been conducted for research on the impact of rock anisotropy on the development of the fractures of different directions by taking as an example the ultra-low-permeability sandstone reservoir in the Upper Triassic Yanchang Formation within the Ordos *** experimental results prove the existence of anisotropy of the rock mechanical property in the different directions on the plane,which is the chief reason for the production of impacts on the development of different assemblages of fractures in the geological *** rock anisotropy usually restricts the development of one assemblage of conjugate shear *** fractures in the Yanchang Formation within the Ordos Basin are mainly shear fractures that formed under two tectonic ***,here,four assemblages of shear fractures should have developed,but due to the effect of a strong rock anisotropy,in each period one assemblage of fractures chiefly ***,two assemblages of fractures are usually developed in every part at present.

关键词： Fracture Rock anisotropy Rock mechanical experiments Acoustic emission experiments

Reservoir differences and formation mechanisms in the Ke-Bai overthrust belt,northwestern margin of the Junggar Basin,china

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petroleum Science 2010年第1期7卷 40-48页

作者： Zhu Xiaomin Zhu Shifa Xian Benzhong Chen Shuping Kuang Lichun Xue Xinke Xue Jingjing You Xincai State Key Laboratory of petroleum Resources and Prospecting China University of Petroleum Beijing 102249 China Faculty of Geoscience China University of Petroleum Beijing 102249 China research institute of petroleum {3. and Development Xinjiang Oilfield Company CNPC Karamay Xinjiang 834000 China

There are some differences in reservoir quality of clastic rock between the hanging wall and the foot wall of the Ke-Bai overthrust belt, northwestern margin of the Junggar Basin, western china, which affect the efficient petroleum exploration in this highly mature exploration area. Based on a large number of thin-sections, cast thin-sections, and physical property analysis of cores, we systematically discuss the Permian-Jurassic reservoir differences between the hanging wall and the foot wall of the Ke- Bai overthrust fault from the aspects of structural evolution, time-space distribution of the depositional system, diagenesis characteristics, and reservoir quality and analyzed the reasons for the differences in reservoir properties. The overthrusting of the Ke-Bai fault directly results in different burial histories, diagenesis evolution, and porosity evolution between the hanging wall and the foot wall. The diflbrences of reservoir characteristics are mainly embodied in buried depth, grain size, sedimentary facies, diagenetic stage, and reservoir quality. The analysis results showed that burial history and depositional characteristics controlled by overthrusting are direct influencing factors of reservoir differences. Because of shallow burial depth of the hanging wall, the reservoir compaction is weak and primary pores are preserved well. The porosity of reservoir on the hanging wall is generally 10%-25%. The strata on the foot wall are deeply buried, and there are mainly mixed pores with the average porosity of 5%-20%. The favorable reservoir on the foot wall is generally developed near faults or in the channel sand bodies, which are usually dissolution development areas.

关键词： Junggar Basin overthrust belt reservoir differences formation mechanism

Ternary geochemical-tracing system in natural gas accumulation

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Science china Earth Sciences 2007年第10期50卷 1494-1503页

作者： LIU WenHui1,2?, CHEN MengJin3. GUAN Ping4, ZHENG JianJing2, JIN Qiang5, LI Jian6, WANG WanChun2, HU GuoYi3. XIA YanQing2 & ZHANG DianWei2 1 exploration & Production research institute, SINOPEC, Beijing 100083.{3. 2 Key Laboratory of Gas Geochemistry, institute of Geology and Geophysics, Chinese Academy of Sciences, Lanzhou 73.000,{3. 3.research institute of petroleum exploration & Production, petrochina, Beijing 100083.{3. 4 School of Earth and Space Sciences, Peking University, Beijing 100871,{3. 5{3. University of petroleum (East{3.), Dongying 257062 ,china 6 Longfang branch, research institute of petroleum exploration & Production, petrochina, Longfang {23.,{3. 1. exploration & Production research institute SINOPEC Beijing 100083 China 2. Key Laboratory of Gas Geochemistry Institute of Geology and Geophysics Chinese Academy of Sciences Lanzhou 730000 China 3. research institute of petroleum {3. & Production PetroChina Beijing 100083 China 4. School of Earth and Space Sciences Peking University Beijing 100871 China 5. china University of petroleum (East china) Dongying 257062 China 6. Longfang branch Research Institute of Petroleum Exploration & Production PetroChina Longfang 065007 China

The establishment of geochemical-tracing system of gas generation and accumulation is helpful to re-elucidating the gas migration and accumulation in time and space. To deduce the complex process of gas accumulation, a ternary geochemical-tracing system is set up, according to stable isotope inheritance of source rocks, kinetic fractionation of stable isotopes, time-accumulating effect of noble gas isotopes, mantle-derived volatile inheritance, and organic molecule inheritance of light hydrocarbons and thermally kinetic fractionation in their generation, in combination with the previous achievements of gas geochemistry and geochemical parameters of gas-source correlation. There are tight interactions for the geochemical parameters with much information about parent inheritance and special biomarkers, in which they are confirmed each other, reciprocally associated and preferentially used for the requirement so that we can use these geochemical parameters to effectively demonstrate the sources of natural gas, sedimentary environments and thermal evolution of source rocks, migration and accumulation of natural gas, and rearrangement of natural gas reservoirs. It is necessary for the ternary geochemical-tracing system to predict the formation of high efficient gas reservoir and their distribution in time and space.

关键词： stable isotope, noble gas, light hydrocarbon, tracing system, sources of natural gas