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平面非均质边水驱油藏来水方向诊断和调整

石油学报 2004年第4期25卷 58-61,66页

作者：常学军郝建明郑家朋熊伟高树生中国矿业大学北京100083 冀东油田勘探开发研究院河北唐山063000 中国石油勘探开发研究院廊坊分院河北廊坊065007

冀东油田 12 # 油层是高 10 4 5区块的主力小层 ,属于河流相沉积 ,平面非均质性强 ,边水能量活跃 ,是该小层的驱动动力。对该层位渗透率等值图进行了分析 ,抽象出一个实验物理模型。该模型在形状和渗透率分布上基本与地质模型相似 ,并... 详细信息

冀东油田 12 # 油层是高 10 4 5区块的主力小层 ,属于河流相沉积 ,平面非均质性强 ,边水能量活跃 ,是该小层的驱动动力。对该层位渗透率等值图进行了分析 ,抽象出一个实验物理模型。该模型在形状和渗透率分布上基本与地质模型相似 ,并以充分接触的水线模拟边水 ,符合地质原型边水驱油实际情况。在两种井网模式下模拟了边水侵入后前缘突进规律。结果表明 ,渗透率是控制边水侵入的主要因素 ,边水侵入后沿主河道推进速度最快。井网部署方式与储层非均质性有一定的适应性 ,合理的井位能抑制边水突进。示踪剂监测解释结果表明 ,在主河道西部 ,边水自西北向东侵入 ;主河道东部边水自东北向西南入侵 ,与主河道砂体展布方向一致。实验模拟结果与示踪剂监测结果吻合。根据研究结果在现场实施边水调剖措施。

关键词：边水驱动物理模型井网储层非均质性示踪剂调剖试验

Physical simulation of fluid flow and production performance in extra-low permeability porous media

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petroleum Science 2009年第4期6卷 415-420页

作者： You Yuan Yue Xiang’an Li Mingyi Zhao Chunpeng Zhang Tao Key Laboratory of petroleum Engineering Ministry of EducationChina University of PetroleumBeijing 102249China Enhanced Oil Recovery research Center China University of PetroleumBeijing 102249China Jilin Oil Field PetroChinaSongyuanJilin 138000China Exploration&Production research institute SinopecBeijing 100083China Exploration Department Changqing Oil FieldPetroChinaXi’anShaanxi 710018China

For extra-low permeability reservoirs, with a permeability of about 0.3.10?3.μm2, fluid flow and production performance in cores were studied. A long core holder with a multi-location piezometric measurement was specially designed. An artificial long core, about 700 mm long and with a cross section of 45mm×45mm, was used. In the experiment, pressure distribution along the core can be measured in real time. Single phase flow in the core was investigated. Different modes of production in long cores were also simulated including natural depletion, water flooding, and advanced water flooding. Through physical simulation, flow parameters were collected and production characteristics in extra-low permeability cores were studied. From experimental results, it can be seen that fluid flow in extra-low permeability cores is different from that in high permeability cores. Transmission of pressure in extra-low permeability cores is very slow, and it needs a long time for the pressure to become stable. The distribution curve of pressure along the core is nonlinear and the production rate in extra-low permeability reservoirs decreases sharply. The development effects of different production modes in extra-low permeability cores were compared with one another. Among the production modes, advanced water flooding has much potential for effective development of extra-low permeability reservoirs. Natural depletion and conventional water flooding can also be used in early production periods. In addition, the countermeasures and some ideas especially for the potential development of extra-low permeability reservoirs are suggested.

关键词： Extra-low permeability reservoirs physical simulation fluid flow production performance

Controlling the uncertainty in reservoir stochastic simulation

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petroleum Science 2010年第4期7卷 472-476页

作者： Cui Yong Chi Bo Chen Guo Ouyang Cheng Xia Bairu china University of Geosciences Beijing 100083 China research institute of Daqing Oilfield Company Ltd. Heilongjiang 163712 China Geological Exploration ＆ development research institute PetroChina Chuanqing Drilling Engineering CompanyChengdu Sichuan 610051 China

Unexpected noise in reservoir stochastic simulation realization may be too high to make the realization useful, especially when there is a lack of hard data. Through discussing the uncertainties, we present two ways to control the uncertainty ratio that is brought by the algorithm of stochastic simulation. By reasonably reducing the random value of the stochastic simulation result, the unexpected values introduced by the residual that associates with random series can be controlled. Another way when the data disperse unevenly is to control the stochastic simulation order by grouping the points that need to be simulated to make those points which can be simulated by more neighborhood hard data calculated first. Both methods do not go against the core stochastic simulation algorithm.

关键词： Reservoir stochastic simulation hard data Kriging algorithm residual realization

核磁共振成像技术在油气运移路径观察与分析中的应用

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石油学报 2004年第3期25卷 44-47页

作者：苗盛张发强李铁军罗晓容侯平中国石油勘探开发研究院廊坊分院河北廊坊102800 中国石化勘探开发研究院北京100083 中国科学院地质与地球物理研究所北京100029

利用核磁共振成像技术观察圆管填玻璃珠物理模型内油的运移过程 ,对成像处理方法进行改进后 ,可以定量地观察和分析运移路径的形态特征及其内部的油饱和度。实验结果表明 ,被油占据的运移路径在整个通道内的比例取决于路径的形态 ,而路... 详细信息

利用核磁共振成像技术观察圆管填玻璃珠物理模型内油的运移过程 ,对成像处理方法进行改进后 ,可以定量地观察和分析运移路径的形态特征及其内部的油饱和度。实验结果表明 ,被油占据的运移路径在整个通道内的比例取决于路径的形态 ,而路径内的油饱和度并非 10 0 %。在实验模型的尺度上 ,运移路径上的油饱和度在运移过程中可达 80 %以上 ;在运移结束后 ,因运移路径收缩、分离 ,油饱和度只占 2 0 %～ 40 %。

关键词：核磁共振成像技术原油二次运移孔隙介质饱和度运移路径实验研究

Depositional characteristics and petroleum geological significance of wetland

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petroleum Science 2009年第4期6卷 347-353页

作者： Jin Zhenkui Gu Junfeng Su Nina Wang Zhaofeng Huang Xiaoping State Key Laboratory of Hydrocarbon Resources and Exploration China University of PetroleumBeijing 102249China research institute of petroleum Exploration and {3. Xinjiang Oilfield CompanyPetroChinaKaramayXinjiang 834000China

Wetland is a new type of sedimentary facies proposed for the first time in this paper. It is a type of sedimentary environment, transitional between land facies and water (sea or lake) facies. In this paper, wetland is redefined as “a type of sedimentary environments whose ground surface is flat and wet throughout the year, which may be covered with very shallow water (less than 2 m deep), and is covered with lush plant growth”. Wetland is reclassified into two types, swamp wetland (swamp in brief) and wet plain wetland (wet plain in brief). Swamp deposits are coal, while wet plain deposits are dark colored mudstones or silty mudstones rich in plant fossils and carbon debris. The deposits of wet plain are different from those of lake and floodplain in the abundance of plant fossils, color, resistivity well logging curve, and other sedimentary characteristics. In boreholes, resistivity logging can be used to distinguish between wet plain mudstones and lake mudstones. Understanding the sedimentary characteristics of wet plain wetland can help to identify wet plain deposits which were formerly classified as floodplain or lake deposits. This will help to reconstruct the palaeogeography and to understand the history of basin and climate evolution accurately, and is especially important in evaluation of the hydrocarbon generating potential of a basin. With the Jurassic Sangonghe Formation of the Yanqi Basin as an example, the identification characteristics of wetland are described.

关键词： Wetland wet plain Yanqi Basin Sangonghe Formation of Jurassic braided river delta

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模糊数学在压裂设计中的应用

天然气工业 1998年第3期18卷 61-64页

作者：蒋廷学田占良中国石油天然气总公司石油勘探开发科学研究院廊坊分院华北石油管理局二连石油勘探开发公司

将模糊数学的有关原理，系统地应用于压裂（包括复压）的选井选层、部分关键设计参数的研究和确认以及最终压裂方案的优化决策中。在紧密结合现场实际的基础上，综合考虑了多种影响因素并将其量化，因此较以往的单因素分析法更为合理。... 详细信息

将模糊数学的有关原理，系统地应用于压裂（包括复压）的选井选层、部分关键设计参数的研究和确认以及最终压裂方案的优化决策中。在紧密结合现场实际的基础上，综合考虑了多种影响因素并将其量化，因此较以往的单因素分析法更为合理。此外，在权重的确定上，尝试应用了灰色理论中的灰色关联度法，将模糊数学与灰色理论有机地结合起来，得出的权重结果基本符合经验判断。本文的三部分研究内容，前后相接，构成一项系统工程。研究方法简单适用，现场可操作性强。研究结果经矿场实例验证及其它可靠手段检测，可信度较高，并已获得了较好的经济效益。

关键词：模糊数学油气井压裂设计参数优选灰色系统

Deliverability of wells in carbonate gas condensate reservoirs and the capillary number effect

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petroleum Science 2009年第1期6卷 51-56页

作者： Li Yong Hu Yongle Li Baozhu Xia Jing research institute of petroleum Exploration and {3. PetroChina Beijing 100083 China

With the development of the Tazhong No. 1 carbonate gas condensate reservoir in china, it has become more and more important to study the characteristics of gas condensate well deliverability. A single-well radial simulator for dual-permeability reservoirs was established to study the influences of fluid properties, permeability, and pressure drawdown on well deliverability with and without the capillary number effect. The simulation shows that well deliverability basically maintains its initial value and is not affected by the capillary number when the formation pressure is higher than dew-point pressure. However, well deliverability drops rapidly when the formation pressure is lower than dew-point pressure. Even if the condensate dropout is very low, well deliverability without the capillary number effect reduces to 50 percent of its initial value when reservoir pressure declines to 95 percent of dew-point pressure, but well deliverability is significantly improved if the capillary number effect exists. The capillary number effect is most significant when reservoir pressure is just lower than dew point pressure, then the effect decreases; the reduction of well deliverability is mainly caused by the reduction of gas relative permeability of the matrix system near the wellbore.

关键词： Carbonate reservoir gas condensate capillary number effect well deliverability dualporosity media

Interfacial properties of Daqing crude oil-alkaline system

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petroleum Science 2011年第1期8卷 93-98页

作者： LIN Mei-qin XU Xue-qin LV Jing Zong Hua LI Ming-yuan DONG Zhao-xia Enhanced Oil Recovery research Center China University of PetroleumBeijing 102249China research institute of petroleum Exploration ＆ {3. PetroChinaBeijing 100083China Shengli Engineering ＆ Consulting Co. Ltd.SINOPECDongyingShangdong 257026China

The oil/water interfacial properties of crude oil emulsions formed by alkaline/surfactant/ polymer（ASP） flooding in the Daqing Oilfield were investigated in this paper by the measurement of interfacial tension,interfacial shear viscosity and Zeta potential of the oil/water *** result showed that both NaOH and Na_2CO_3.could react with acid substances in the crude oil to produce interfacially active components,which are adsorbed on the interfaces between the aqueous phase and oil phase, resulting in a decrease of the interfacial tension,negatively charging the surface of oil droplets,but making little change in the interfacial shear *** the same ionic strength of NaOH and Na_2CO_3. the interfacial tension of NaOH solution-crude oil system is lower,but the interfacial shear viscosity of NaOH solution-crude oil system is higher,than that of Na_2CO_3.solution-crude oil *** negative value of the Zeta potential on the surface of the oil droplets is ***,the O/W emulsion of NaOH solution-crude oil system is more stable than that of Na_2CO_3.solution-crude oil system.

关键词： Alkali interfacial tension interfacial shear viscosity Zeta potential turbidity

Major factors controlling the formation of middle and large marine carbonate stratigraphic fields

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Science Bulletin 2007年第S1期 44-53页

作者： ZOU CaiNeng & TAO ShiZhen research institute of petroleum Exploration and {3., petrochina, Beijing 100083. china

Marine carbonate oil and gas fields have become an important exploration area in china and even across the world. Their formation, distribution and enrichment are special owing to the complexity of the deposition, diagenesis and accumulation, which is caused by the multiplicity of the carbonate depositional environments and facies, huge extensions of formation time and burial depth, complication of diagenetic evolution, heterogeneity as well as the development of pores, caves and fractures affected by various factors. Oil and gas accumulations in carbonate rocks are not strictly controlled by the second-order structure belt. Most of them, under certain structural settings, are controlled by sedimentary diagenesis and its favorable facies. The hydrocarbon reservoir type is predominantly stratigraphic. Based on the worldwide researches of carbonate fields, the paper concludes that 7 main factors control the formation and distribution of middle-large marine carbonate stratigraphic fields.

关键词： carbonates stratigraphic reservoir accumulation condition main controlling factors