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石油勘探与开发 1995年第3期 117-124页

作者： Dai Jin-xing He Bin Sun Yong-xiang Li Peng-ju Li Xian-qi(research institute of petroleum exploration and Development, CNPC, beijing, 100083)

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关键词： Central-Asia Gas accumulation domain Coal-measure Gas source rocks

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 exploration 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

Quantitative description of characteristics of high-capacity channels in unconsolidated sandstone reservoirs using in situ production data

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petroleum Science 2010年第1期7卷 106-111页

作者： Wang Xuezhong Wang Jianyong Wang Chuanfei Zeng Liufang Liu Xuewei Xinjiang exploration ＆ production Center Shengli Oilfield Company Sinopec Dongying Shandong 257000 China sinopec Beijing 100728 China china University of petroleum Dongying Shandong 257061 China Gudong Oil production Plant Shengli Oilfield Company Sinopec Dongying Shandong 257237 China institute of Porous Flow ＆ Fluid Mechanics CNPC ＆ Chinese Academy of Sciences Langfang Hebei 065007 China

Quantitative description of the high-capacity channels in unconsolidated sandstone reservoirs, into which water was injected to improve oil recovery, is a hot topic in the field of reservoir development. This paper presents a novel approach to describing quantitatively the characteristics of connected macropores in unconsolidated sandstone reservoirs using in situ production data. Based on physical simulation for formation mechanisms of high capacity channels and interwell tracer test data, a mathematical model was established to describe high-capacity channels by grey correlation theory, flow mechanism of fluid in porous media and reservoir engineering, and a program was developed to describe quantitatively the channel characteristics. The predicted results were consistent with field monitoring data （80%）, so this model could be economically and effectively used to identify high-capacity channels.

关键词： High-capacity channel unconsolidated sandstone quantitative description physical simulation interwell tracer grey correlation theory

The productivity evaluation model and its application for finite conductivity horizontal wells in fault block reservoirs

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petroleum Science 2010年第4期7卷 530-535页

作者： Jiang Hanqiao Ye Shuangjiang Lei Zhanxiang Wang Xing Zhu Guojin Chen Minfeng Key Laboratory of petroleum Engineering Ministry of Education China University of Petroleum Beijing 102249 China research institute of petroleum exploration and Development PetroChina Beijing 100083 China research institute of china National Offshore Oil Corporation Beijing 100027 China

It is very difficult to evaluate the productivity of horizontal wells in fault block reservoirs due to the influence of fault *** the basis of the method of images and source-sink theory,a semianalytical model coupling reservoir and finite conductivity horizontal wellbore flow dynamics was built,in which the influence of fault sealing was taken into *** distribution of wellbore flow and radial inflow profiles along the horizontal interval were also *** impact of the distance between the horizontal well and the fault on the well productivity was quantitatively *** on this analysis,the optimal distance between the horizontal well and the fault in banded fault block reservoirs could be *** to the field application,the relative error calculated by the model proposed in this paper is within ±15%.It is an effective evaluation method for the productivity of horizontal wells in fault block *** productivity of the horizontal well increases logarithmically as the distance between the horizontal well and the fault *** optimal distance between the horizontal well and the fault is 0.25-0.3 times the horizontal well length.

关键词： Fault block reservoir horizontal well finite conductivity productivity evaluation well location design

Hydrogen isotopic compositions, distributions and source signals of individual n-alkanes for some typical crude oils in Lunnan Oilfield, Tarim Basin, NW china

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Science china Earth Sciences 2005年第8期48卷 1220-1226页

作者： LU Hong1, LI Chao1, SUN Yongge1, PENG Ping’an1 & XIAO Zhongyao2 1. State Key Laboratory of Organic Geochemistry, Guangzhou institute of Geochemistry, Chinese Academy of Sciences, Guangzhou510640, china 2. Tarim research institute of exploration and Development of petroleum, china petroleum, Korla 841000, china 1. State Key Laboratory of Organic Geochemistry Guangzhou Institute of Geochemistry Chinese Academy of Sciences 510640 Guangzhou China 2. Tarim research institute of exploration and Development of petroleum China Petroleum 841000 Korla China

Isotopic compositions of carbon-bound hydrogen in individual n-alkanes from sev-eral typical crude oil samples from Lunnan Oilfield, Tarim Basin, NW china, were firstly measured using newly developed gas chromatography-thermal conversion-isotope ratio mass spectrometry. The similar range of δ D of individual n-alkanes of crude oils among reservoirs of different geo-logical times reflects that hydrocarbons are all derived from the same marine depositional envi-ronment. Compared to the theoretic value (?150‰) and the reported δ D values (nC13―nC27, ?160‰―?90‰) of individual n-alkanes for Ordovician-sourced crude oils in the Canadian Wil-liston Basin, the hydrogen isotopic composition of individual n-alkanes in crude oils from Lunnan Oilfield is characterized by heavy hydrogen isotopic values (nC12―nC27, ?120‰―?60‰). In terms of the factors that control the fractionation of hydrogen isotopes, relatively saline deposi-tional environment and higher thermal maturation were attributed to the heavy δ D values of in-dividual n-alkanes in crude oils from Lunnan Oilfield.

关键词： hydrogen isotopes, individual n-alkanes, distribution, hydrocarbon source, Lunnan Oilfield.

Ce Anomalies of the Yangtze Region,South china,through the Ordovician and Silurian Transition

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Journal of Earth Science 2009年第6期20卷 941-948页

作者：严德天张丽琴李双建 Key Laboratory of Tectonics and petroleum Resources of Ministry of Education China University of GeosciencesWuhan institute of Geology and Geophysics Chinese Academy of Sciences School of Geodesy and Geomatics Wuhan University Key Laboratory of Geospace Environment & Geodesy of Ministry of Education Wuhan University petroleum exploration and production institute of sinopec

Systematic Ce anomalies for whole-rock have been obtained from the shale-dominated, continuous, and pelagic sedimentary sequences spanning the Ordovician/Silurian （O/S） boundary at the Tieshui （铁水） of Xiushan （秀山）, Chongqing （重庆）, South china. Ce anomalies across the O/S boundary are recognized in three intervals, Wufeng （五峰）, Guanyinqiao （观音桥） and Longmaxi （龙马溪）. The calculated Ce/Ce＊ values of Wufeng Formation range from 0.84 to 0.96 （avg. 0.90）. In the Guanyinqiao Formation, the values of calculated Ce/Ce＊ range from 0.73 to 0.85 （avg. 0.79）. The Ce/Ce＊ values of uppermost Longmaxi Formation range from 0.87 to 0.96 （avg. 0.91）. All along the section, the magnitude of the Ce anomaly is always negative, but is more significant in the Guanyinqiao Formation. The relatively higher Ce/Ce＊ values in the Wufeng and Longmaxi shales are likely to be due to the sediments deposited under rather reducing conditions. The Ce anomaly apparently does play some regular roles in the anoxic events that accompany prominent mass extinctions, and this work provides new data of critical importance for constraining models on the end-Ordovician anoxic events and mass extinctions.

关键词： Ce anomaly redox mass extinction Ordovician/Silurian boundary Yangtze platform.

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易漏失地层承压能力分析

石油学报 2010年第2期31卷 311-317页

作者：蔡利山苏长明刘金华中国石化石油工程技术研究院钻井液研究所北京100101

随着各种复杂地质条件下勘探井作业数量的增多和井深的不断加大,因漏失引起的复杂情况不断增多。为了顺利钻达设计深度,施工中常常需要采用人工承压手段检验和提高上部地层承压能力,以便能用较高密度的钻井液钻至较深的地层。实际的承... 详细信息

随着各种复杂地质条件下勘探井作业数量的增多和井深的不断加大,因漏失引起的复杂情况不断增多。为了顺利钻达设计深度,施工中常常需要采用人工承压手段检验和提高上部地层承压能力,以便能用较高密度的钻井液钻至较深的地层。实际的承压作业中,往往会遇到反复承堵但无法提高承压能力的情况,即现场常说的地层抗破裂强度不够。结合现场实践经验,对室内实验结果进行的综合分析表明,地层的承压能力与裂缝的变化情况直接相关,并受裂缝分布形式和分布范围的影响,当裂缝波及范围较小时,处理时应尽可能形成较厚的封堵层;当裂缝波及范围较大时,则应首先在漏失通道中形成阻流带,再尝试采用其他手段逐渐提高承压能力。同时分析了室内模拟实验结果与现场应用结果的差异,探讨了造成差异的原因。

关键词：易漏失地层承压能力裂缝波及范围漏失通道桥堵

Structural characteristics and petroliferous features of Tarim Basin

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Chinese Science Bulletin 2002年第S1期47卷 1-11页

作者： JIA Chengzao~1 & WEI Guoqi~2 1. Petrochina Company Limited, beijing 100011, china 2. Langfang Branch of research institute of petroleum exploration & Development, Petrochina, Langfang 065007, china 1. Petrochina Company Limited 100011 Beijing China 2. Langfang Branch of research institute of petroleum exploration & Development PetroChina 065007 Langfang China

Using the modern tectonic geology theories andmethods such as the plate tectonic analysis, the paleo-struc-ture analysis, the structural-Iithofacies analysis, and the faultrelated fold and petroleum system, and combining with theseismic data, well drilling data and the circumferential fieldgeology, study on the structural characteristics and petro-leum prospect in the Tarim Basin has been carried out. Re-sults show that the Tarim Basin is a large superimpositionand combination basin with continental crustal basement,composed of a Paleozoic craton and Meso-Cenozoic forelandbasins. The characteristics of the basin are: the kernel partof the basin is the marine facies Paleozoic craton, superim-posed 4 continental facies foreland basins. Though the scaleof the paleozoic craton of the Tarim Basin is relatively small,the structure is steady. The petroleum prospect of the Paleo-zoic craton is: multiphase pool-generation and accumulationcontrolled by ancient uplift. The Meso-Cenozoic forelandbasins in the Tarim Basin, which are distributed on the era-tonic circumference and are a long-term subsidence, turnedinto rejuvenated foreland basins after the Meso-Cenozoicperiod. The petroleum prospects are: coal-bed generatinghydrocarbon, abundant natural gas, pool-generation in laterand recent periods, the oil and gas distribution controlled bythe foreland thrust belt. The structural characteristics ofTarim provide it with a superimposition and combinationpetroleum system of multiple resources, multiple reservoirsand multiphase pool-generation. The oil and gas explorationprospect covers two large fields: the Paleozoic craton and theMeso-Cenozoic foreland thrust belt.

关键词： Tarim superimposition and combination basin craton foreland basin superimposition and combination petroleum system.

Combination and superimposition of source kitchens and their effects on hydrocarbon accumulation in the hinterland of the Junggar Basin,west china

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petroleum Science 2010年第1期7卷 59-72页

作者： Zhang Zhihuan Qin Liming Qiu Nansheng Zhong Ningning Zhang Zhenying Li Wei State Key Laboratory of petroleum Resources and Prospecting China University of Petroleum Beijing 102249 China beijing institute of Economic Management Hebei 102602 China sinopec International petroleum exploration and production Corporation Beijing 100083 China

In the hinterland of the Junggar Basin, there are multiple depressions with multiple sets of source rocks. Therefore, the conditions of hydrocarbon sources are complex, and the geochemical characteristics and sources of hydrocarbon vary in different structural belts. The evolution of the Che- Mo palaeohigh affected the formation of hydrocarbon source kitchens and hydrocarbon migration. We studied the combination and superimposition of hydrocarbon source kitchens, using as an example the hinterland of the Junggar Basin （including the Yongjin, Zhengshacun, Moxizhuang and Luliang uplift areas）. The study was based on geochemical analyses of crude oil and fluid inclusions, and the histories of tectonic evolution and hydrocarbon generation. The results indicated that before the Paleogene there were two hydrocarbon-generating depressions： the Western Well Penl depression and the Changji depression on the south and north sides of the Che-Mo palaeohigh, respectively. The Permian source kitchen had been generating hydrocarbon continuously since Triassic and reached high maturity stage in the Cretaceous period. After Paleogene, the adjustment of the Che-Mo palaeohigh led to the subsidence of the Changji depression and the Jurassic source rocks reached mature stage and became the main source kitchens. However, the Jurassic source rocks in the Western Well Penl depression were still in a low maturity stage and did not generate oil because of the adjustment of tectonic movements. As a result, in the central and southern parts of the Junggar Basin, Jurassic source rocks generated oil, but in the Luliang uplift, the crude oil was from the Permian source rocks in the Western Well Penl depression and the Jurassic source rocks did not contribute. The crude oil in the central Zhengshacun-Moxizhuang belt was from the Permian source rocks in two depressions, and partially from the Jurassic source rocks. The crude oil in the Luliang uplift was from the source rocks of the lower Permian F

关键词： Hinterland of the Junggar Basin hydrocarbon source kitchen oil source combination and superimposition accumulation stage

Diagenesis and Restructuring Mechanism of Oil and Gas Reservoir in the Marine Carbonate Formation,Northeastern Sichuan:A Case Study of the Puguang Gas Reservoir

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Acta Geologica Sinica(English Edition) 2009年第6期83卷 1173-1181页

作者： DU Chunguo1, 2, WANG Jianjun1, ZOU Huayao2, ZHU Yangming3 and WANG Cunwu4 1 research institute of petroleum exploration and Development, beijing 100034, china 2 petroleum University of china, beijing 102249, china 3 Department of Earth Science, Zhejiang University, Hangzhou 310027, china 4 Faculty of Earth Resources, china University of Geosciences, Wuhan 430074, china Faculty of Earth Resources China University of Geosciences Wuhan 430074 China

Based on the technology of balanced cross-section and physical simulation experiments associated with natural gas geochemical characteristic analyses, core and thin section observations, it has been proven that the Puguang gas reservoir has experienced two periods of diagenesis and restructuring since the Late Indo-Chinese epoch. One is the fluid transfer controlled by the tectonic movement and the other is geochemical reconstruction controlled by thermochemical sulfate reduction (TSR). The middle Yanshan epoch was the main period that the Puguang gas reservoir experienced the geochemical reaction of TSR. TSR can recreate the fluid in the gas reservoir, which makes the gas drying index higher and carbon isotope heavier because C2+ (ethane and heavy hydrocarbon) and 12C (carbon 12 isotope) is first consumed relative to CH4 and 13C (carbon 13 isotope). However, the reciprocity between fluid regarding TSR (hydrocarbon, sulfureted hydrogen (H2S) , and water) and reservoir rock results in reservoir rock erosion and anhydrite alteration, which increases porosity in reservoir, thereby improving the petrophysical properties. Superimposed by later tectonic movement, the fluid in Puguang reservoir has twice experienced adjustment, one in the late Yanshan epoch to the early Himalayan epoch and the other time in late Himalayan epoch, after which Puguang gas reservoir is finally developed.

关键词： diagenesis and restructuring mechanism marine carbonate formation thermochemical sulfate reduction Puguang gas reservoir