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APPlication and Derivation of Weng's Prediction Model

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天然气工业 1996年第2期16卷 97-99页

作者： Chen Yuanqian (Research institute of petroleum {2. and development of CNPC) Li Chongri

In this paper,the generalized Weng’s prediction model is derived based on the x~2.distribution in the probability *** model may be used to predict production rate,recoverable reserves,annual maximum production rate and its occuring time. At the same time,a method of linear solution for the model is provided in this paper. Application of two actual oilfields indicates that the generalized Weng’s prediction model is very practical and efficient.

关键词： APPlication and Derivation of Weng’s Prediction Model

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油气勘探中的遥感预测技术

天然气工业 2004年第3期24卷 44-48页

作者：谭青中国石化石油勘探开发研究院荆州新区勘探研究所

油气勘探中的卫星遥感预测技术是一种低成本、快速评价新方法。它根据遥感图像提取的与地质信息相关的地表影像异常及其组合特征来分析深部构造形变、隐伏圈闭、可能的油气运移通道 ,可起到指明勘探方向 ,缩小勘探目标的作用。目前国内... 详细信息

油气勘探中的卫星遥感预测技术是一种低成本、快速评价新方法。它根据遥感图像提取的与地质信息相关的地表影像异常及其组合特征来分析深部构造形变、隐伏圈闭、可能的油气运移通道 ,可起到指明勘探方向 ,缩小勘探目标的作用。目前国内外应用遥感预测油气勘探靶区的技术仍在探索之中 ,因研究思路不同可分成两类方法 :烃的土壤蚀变异常影像提取预测法 ,线—环异常构造应力分析预测法。根据遥感应用实例对两种方法的原理、应用效果进行了分析 ,并对遥感异常与深部构造的关系、烃渗漏与传统石油地质观念中的油气藏保存、遥感异常与地震资料验证中的种种技术问题也进行了讨论 ,提出遥感是一种新的油气地质信息源。

关键词：油气勘探遥感预测技术隐伏圈闭构造应力分析构造影像异常分析

Total alkyl dibenzothiophenes content tracing the filling pathway of condensate reservoir in the Fushan Depression,South China Sea

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Science China Earth Sciences 2008年第S2期51卷 138-145页

作者： LI MeiJun1,WANG TieGuan1,LIU Ju2.ZHANG MeiZhu2.LU Hong3,MA QinLin2.& GAO LiHui2.1 State Key Laboratory of petroleum Resources and Prospecting,Earth Sciences and Geoinformatics School,China University of petroleum,Beijing 102.49,China 2.Southern Oil {2. and development Company,PetroChina,Guangzhou 510640,China 3 Guangzhou institute of Geochemistry,Chinese Academy of Sciences,Guangzhou 5102.0,China State Key Laboratory of petroleum Resources and Prospecting Earth Sciences and Geoinformatics School China University of Petroleum Beijing China Southern Oil exploration and development Company PetroChina Guangzhou China Guangzhou institute of Geochemistry Chinese Academy of Sciences Guangzhou China

The condensates are generally characterized by high maturity,low concentration of steranes and ter-panes biomarkers and low content of non-hydrocarbon fraction. In this case commonly used steranes,terpanes and carbazoles parameters cannot be effectively applied in the reservoir-filling tracing. The hydrogen bond formed by sulfur atom in the dibenzothiophenes (DBTs) results in molecule adsorption and fractionation during oil migration in reservoir. Like carbazoles,total DBTs content decreases with the increasing of oil migration distance. Therefore,a new parameter——total DBTs content is proposed to be used to trace the oil migration orientation and filling pathway. In present study,total DBTs con-tents of condensates and light oils are obtained by adding internal standard——eight deuterium atoms substituted DBT during Gas Chromatography-Mass Spectrometry analysis of aromatic fraction. Except for a few samples with much lower content of non-hydrocarbon fraction,the total DBTs content shows a fine positive correlation with that of carbazoles. Large errors can be caused in the process of pyrrolic nitrogen compounds separation. The application of this new parameter in the Fushan Depression of Beibu Gulf Basin,South China Sea indicates that this parameter is a reliable one to trace filling pathway in condensate reservoirs. Combined with other DBTs-related parameters,such as 4-/1-methydibenzo-thiophene and 2.4-/1,4-dimethyldibenzothiophene,oil migration orientation and filling pathway of the Fushan Depression was determined. The accumulations of Huachang oil field in the Fushan Depres-sion are mainly migrated and charged from northeast to southeast along the Huachang uplift. It can be predicated that the light oil and condensates in the Huachang oil field should be sourced from the source kitchen at the Bailian Sag. It shows that total DBTs content is an effective parameter to tracing oil migration orientation and filling pathway.

关键词： dibenzothiophene alkyl dibenzothiophene condensate reservoir filling pathway molecular markers the Fushan Depression

A hydrocarbon enrichment model and prediction of favorable accumulation areas in complicated superimposed basins in China

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petroleum Science 2010年第1期7卷 10-19页

作者： Pang Xiongqi Meng Qingyang Jiang Zhenxue Liu Luofu Lu Xiuxiang State Key Laboratory of petroleum Resources and Prospecting China University of Petroleum Beijing 102249 China Basin and Reservoir Research Center China University of Petroleum Beijing 102249 China Research institute of petroleum {2. and development PetroChina Beijing 100083 China

The geologic conditions of superimposed basins in China are very complicated. This is mainly shown by multi-phase structural evolution, multiple sets of source-reservoir-cap rock combinations, multiple stages of hydrocarbon generation and expulsion from source rocks, multi-cycle hydrocarbon enrichment and accumulation, and multi-phase reservoir adjustment and reconstruction. The enrichment, accumulation and distribution of hydrocarbon is mainly controlled by the source rock kitchen, paleo- anticline, regional cap rock and intensity of tectonic movement. In this paper, the T-BCMS model has been developed to predict favorable areas of hydrocarbon accumulation in complicated superimposed basins according to time and spatial relationships among five key factors. The five factors include unconformity surface representing tectonic balancing （B）, regional cap rock representing hydrocarbon protection （C）, paleo-anticline representing hydrocarbon migration and accumulation （M）, source rock kitchen representing hydrocarbon generation and expulsion （S） and geological time （T）. There are three necessary conditions to form favorable areas of hydrocarbon accumulation. First, four key factors BCMS should be strictly in the order of BCMS from top to bottom. Second, superimposition of four key factors BCMS in the same area is the most favorable for hydrocarbon accumulation. Third, vertically ordered combination and superimposition in the same area of BCMS should occur at the same geological time. The model has been used to predict the most favorable exploration areas in Ordovician in the Tarim Basin in the main hydrocarbon accumulation periods. The result shows that 95% of the discovered Ordovician hydrocarbon reservoirs are located in the predicted areas, which indicates the feasibility and reliability of the key factor matching T-BCMS model for hydrocarbon accumulation and enrichment.

关键词： Complicated superimposed basin key factor matching T-BCMS model favorable area for hydrocarbon accumulation hydrocarbon distribution prediction

An initial discussion on major controlling factors on formation of coal-formed large-medium sas fields

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Chinese Science Bulletin 2000年第5期45卷 394-404页

作者： DAI Jinxing, XIA Xinyu, HONG Feng, ZHAO Lin, SUN Dongmin & SHI XinResearch institute of petroleum {2. and development, Beijing 100083, China Correspondence should be addressed to Dai Jinxing Research institute of petroleum {2. and development Beijing China

The so-called "large-medium gas field" means a gas field with proven reserves equal to or larger than 100×108 m3. Up to 1997, 2. coal-formed great-medium fields are discovered in China, excluding two in Taiwan Province. Their proven reserves take 50.9% in total natural gas reserves. Therefore, the coal-formed great-medium gas field plays a decisive role in natural gas reserves and the study of their controlling factors is very important both in theory and in practice. There are six major controlling factors on the formation of coal-formed large-medium gas fields: ( Ⅰ) The generating center of coal-formed gas and its surrounding area; (Ⅱ) low potential area; (Ⅲ) late pool-forming period; (Ⅳ) traps related to the paleo-uplifits in coal-formed gas area; (Ⅴ) above or between abnormally pressured compartments; (Ⅵ) faulted traps related to coal-bed.

关键词： coal-formed gas large-medium gas field controlling factor.

鄂尔多斯盆地庆阳以南三叠系延长组长_5、长_6、长_7储层成岩作用

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天然气工业 2001年第2期21卷 13-17页

作者：牟泽辉中石化石油勘探开发研究院荆州新区勘探研究所

三叠系延长组长5、长6、长7为区内主要油气勘探目的层 ,它们的储层主要经历了溶蚀作用、白云石化作用、破裂作用、沸石化作用、压实作用和胶结作用等一系列成岩作用 ,成岩作用复杂 ,成岩现象十分丰富 ,且特征明显。成岩作用研究表明 ,... 详细信息

三叠系延长组长5、长6、长7为区内主要油气勘探目的层 ,它们的储层主要经历了溶蚀作用、白云石化作用、破裂作用、沸石化作用、压实作用和胶结作用等一系列成岩作用 ,成岩作用复杂 ,成岩现象十分丰富 ,且特征明显。成岩作用研究表明 ,溶蚀作用、白云石化作用、破裂作用、沸石化作用是有利于区内孔隙发育的成岩作用 ,而压实作用和胶结作用则是使储层物性变差、孔隙度降低的两个重要成岩作用。可将延长组储层分为持续埋藏型成岩系统和中间开启型成岩系统 ,区内井深 130 0～ 15 0 0m和 170 0～ 190 0m为次生孔隙发育段 ,且物性条件和孔隙结构受控于沉积环境和成岩作用。

关键词：延长组鄂尔多斯盆地成岩作用成岩模式储层油气藏

THE CHARACTERISTICS OF REMOTE SENSING TECTONICS IN QIANGTANG-CHANGDU MASSIF, QINGHAI-TIBET PLATEAU

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地学前缘 2000年第S1期7卷 435-437页

作者： Zhao Zhengzhang 1,Ye Hefei 2.Li Yongtie 2.1 China National petroleum Corporation, Beijing 10072.,China 2.Research institute of petroleum exploration and development, CNPC, Beijing 100083,China)

The northern Tibet plateau is the core of generalized Qinghai—Tibet plateau. The main part of Qiangtang—Changdu massif, which is 45×10 4km 2.and more than 5000m in altitude, conforms to the northern Tibet plateau in area.1 The shape features and boundary conditions of Qiangtang—Changdu massif\;(1) Qiangtang—Changdu massif shows huge flat\|lying “S” area In MSS7 mosaic image, Qiangtang—Changdu massif extends in west and east, and appears a long\|elliptic huge block composed of feathered and dendritic textures.. Noticeably, there are two similar texture “tails" in the west and east ends of the massif. The western tail turns and constringes to the north, and eastern tail to the south. Thereby, the massif shows huge “S" area. According to the regional analysis, the eastern tail locates between Shaluli Mt.\|Taniantaweng Mt. and Mujiang River, and western part through Bangong\|Co connects with Pamirs along Karakoram Mt. In regional tectonics, the massif locates between Lazhulong\|Xijinwulan\|Co\|Jinshajiang River and Bangong\|Co\|Dongqiao\|Nujiang River fault belts.

关键词： Qiangtang—Changdu massif remote sensing boundary condition circular structure deformin g features mechanic characteristic dynamics

Genetic types and distribution of shallow-buried natural gases

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petroleum Science 2010年第3期7卷 347-354页

作者： Gao Yang Jin Qiang Zhu Guangyou College of Geo-resources and Information China University of Petroleum Dongying Shandong 257061 China petroleum exploration and {2. institute PetroChina Beijing 100083 China

Great volumes of shallow-buried （〈2.000 m） natural gases which are mainly composed of biogases and low-mature gases have been found in the Mesozoic-Cenozoic sedimentary basins in China. Many shallow gas reservoirs in China are characterized by coexistence of biogas and low-mature gas, so identifying the genetic types of shallow gases is important for exploration and development in sedimentary basins. In this paper, we study the gas geochemistry characteristics and distribution in different basins, and classify the shallow gas into two genetic types, biogas and low-mature gas. The biogases are subdivided further into two subtypes by their sources, the source rock-derived biogas and hydrocarbon-derived biogas. Based on the burial history of the source rocks, the source rock-derived biogases are divided into primary and secondary biogas. The former is generated from the source rocks in the primary burial stage, and the latter is from uplifted source rocks or those in a secondary burial stage. In addition, the identifying parameters of each type of shallow gas are given. Based on the analysis above, the distributions of each type of shallow gas are studied. The primary biogases generated from source rocks are mostly distributed in Quaternary basins or modem deltas. Most of them migrate in watersoluble or diffused mode, and their migration distance is short. Reservoir and caprock assemblages play an important role in primary biogas accumulation. The secondary biogases are distributed in a basin with secondary burial history. The oil-degraded biogases are distributed near heavy oil pools. The low-mature gases are widely distributed in shallow-buried reservoirs in the Meso-Cenozoic basins.

关键词： Primary biogas secondary biogas oil-degraded biogas low-mature gas genetic type gas identification gas accumulation distribution

Preliminary study on the origin identification of natural gas by the parameters of light hydrocarbon

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Science China Earth Sciences 2008年第S1期51卷 131-139页

作者： HU GuoYi 1,2.3 ,LI Jian 1,2.,LI Jin 1,2.,LI ZhiSheng 1,2.,LUO Xia 1,2.,SUN QingWu 1,2.&MA ChengHua 1,2.1 Research institute of petroleum {2. and development(Langfang Branch),Petrochina,Langfang 065007,China 2.The Key Laboratory of Gas Formation and development,Petrochina,Langfang 065007,China 3 College of Geo-Resources and Information,China University of petroleum,Beijing 102.00,China Research institute of petroleum {2. and development (Langfang Branch) Petrochina Langfang China The Key Laboratory of Gas Formation and development Petrochina Langfang China College of Geo-Resources and Information China University of Petroleum Beijing China

The light hydrocarbon composition of 2.9 natural gas samples and individual light hydrocarbon carbon isotopes of 53 natural gas samples from typical humic-sourced gas and sapropelic-sourced gas in the four basins of China have been determined and *** identification parameters for humic-sourced gas and sapropelic-sourced gas are proposed or *** differences of compound-specificδ13C value of individual light hydrocarbon between humic-sourced gas and sapropelic-sourced gas have been *** humic-sourced gas has the distribution ofδ13C benzene > -2.‰,δ13C toluene >-2.‰,δ13C cyclohexane >-2.‰andδ13C methyl cyclohexane >-2.‰,while the sapropelicsourced gas has the distribution ofδ13C benzene 2.‰,δ13C toluene 2.‰,δ13C cyclohexane 2.‰and δ13C methyl cyclohexane 2.‰.Among the components of C7 light hydrocarbon compound,such as normal heptane(nC7),methyl cyclohexane(MCH)and dimethyl cyclopentane(ΣDMCP),etc,relative contents of nC7 and MCH are influenced mainly by the source organic matter type of natural ***,it is suggested that the gas with relative content of nC7 of more than 30%and relative content of MCH of less than 70%is sapropelic-sourced gas,while gas with relative content of nC7 of less than 35%and relative content of MCH of more than 50%is humic-sourced *** components of C5-7 aliphatics, the gas with relative content of C5-7 normal alkane of more than 30%is sapropelic-sourced gas,while the gas with relative content of C5-7 normal alkane of less than 30%is humic-sourced *** paremeters have been suggested to identify humic-sourced gas and sapropelic-sourced gas.

关键词： natural gas humic-sourced gas sapropelic-sourced gas carbon isotope light hydrocarbon parameters