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Two conceptual models of displacement transfer and examples

Science china Earth Sciences 2005年第7期48卷 900-911页

作者： GUAN Shuwei1,2, WANG Xin2, YANG Shufeng2, HE Dengfa1 & ZHAO Weidong3 1. research institute of Petroleum exploration and Development, beijing 100083, china 2. Department of Geosciences, Zhejiang University, Hangzhou 310027, china 3. Tarim Oilfield Company, Korla 841000, china research institute of Petroleum exploration and Development Beijing 100083 China Department of Geosciences Zhejiang University Hangzhou 310027 China Tarim Oilfield Company Korla 841000 China

This paper presents two conceptual models of displacement transfer, reverse sym- metry model and infinitely equal division model, based on the fault-bend folding theory. If the fault shape is held constant in the trend, then the distribution of slip magnitude, geometry of imbricate structures and its axial surface map all display reverse symmetry on the process of displacement transfer, as called reverse symmetry model in this paper. However, if the ramp height of thrust fault decreases gradually along its strike, the displacement is postulated to be equally and infinitely divided to every thrust that is formed subsequently, this kinematic process is described using infinitely equal division model. In both models, displacement transfer is characterized by the regular changes of imbricate thrusting in the trend. Geometric analysis indicates that the displacement transfer grads can be estimated using the tangent of deflective angle of hinterland structures. Displacement transfer is often responsible for the distortion and branching of the surface anticlines, especially in the region where the multi-level detachment structures is developed. We also present some examples from the frontal structures of the Southern Tianshan fold-and-thrust belt, Xinjiang, china. Displacement transfer between deep imbricate thrusts in the middle segment of Qiulitag anticline zone causes the Kuqatawu and Southern Qiulitag deep an- ticlines left-lateral echelon. The region, where these two deep anticlines overlap, is characterized by duplex structures, and extends about 18 km. The shallow anticline is migrated southward displaying obvious “S” form in this area.

关键词： displacement transfer fault-bend folding reverse symmetry model infinitely equal division model Qiulitag zone.

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The MIP Technology and Its Commercial Application

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china Petroleum Processing & Petrochemical Technology 2009年第1期11卷 1-5页

作者： Cheng Congli Xu Youhao (research institute of Petroleum Processing, beijing 100083) research institute of Petroleum Processing Beijing 100083 China

This article introduces the specifics of the MIP technology involving respectively the case for production of clean gasoline, the case for producing clean gasoline coupled with production of diesel and the case for producing gasoline with increased output of propylene. The performance of the MIP units that were in operation was wrapped up. Test results have shown that the MIP technology is characterized by improved product distribution as evidenced by the reduced yields of dry gas and slurry and the increased total liquid yield; the upgraded product quality as evidenced by the reduced olefin and sulphur contents in gasoline; and the more ideal techno-economic indicators as evidenced by the reduced unit consumption of catalyst and the reduced energy consumption of the process unit.

关键词： MIP olefin sulfur content, product distribution unit consumption ofcatalyst energy consumption of process unit

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Effect of stress sensitivity on displacement efficiency in CO_2 flooding for fractured low permeability reservoirs

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Petroleum Science 2009年第3期6卷 277-283页

作者： Wang Rui Yue Xiang＇an Zhao Renbao Yan Pingxiang Dave Freeman Key Laboratory of Petroleum Engineering Ministry of Education China University of Petroleum Beijing 102249 China sinopec exploration ＆ production research institute Beijing 100083 China china Power Complete Equipment Co. Ltd. Beijing 100011 China Edwy R. Brown Department of Petroleum Engineering Marietta College U.S.A.

Carbon dioxide flooding is an effective means of enhanced oil recovery for low permeability reservoirs. If fractures are present in the reservoir, CO2 may flow along the fractures, resulting in low gas displacement efficiency. Reservoir pore pressure will fluctuate to some extent during a CO2 flood, causing a change in effective confining pressure. The result is rock deformation and a reduction in permeability with the reduction in fracture permeability, causing increased flow resistance in the fracture space. Simultaneously, gas cross flowing along the fractures is partially restrained. In this work, the effect of stress changes on permeability was studied through a series of flow experiments. The change in the flowrate distribution in a matrix block and contained fracture with an increase in effective pressure were analyzed. The results lead to an implicit comparison which shows that permeability of fractured core decreases sharply with an increase in effective confining pressure. The fracture flowrate ratio declines and the matrix flowrate ratio increases. Fracture flow will partially divert to the matrix block with the increase in effective confining pressure, improving gas displacement efficiency.

关键词： Stress sensitivity flowrate distribution matrix fracture CO2 flooding displacement efficiency

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EARLY PALAEOZOIC PRIMARY OIL OF KONGXI BURIED HILL IN HUANGHUA DEPRESSION, HUABEI, china

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石油勘探与开发 1997年第3期24卷 92-95页

作者： Wang Zhaoyun Cheng Keming(research institute of Petroleum exploration and Development, CNPC, beijing, 100083)Yang Chiyin(Geology and Development institute, Dagang Oil Field Group Ltd., Tianjin, 300280)

Huabei area suffered a sedimentary interruption of about 130 million years during Late Ordovicianto Devonian period. Therefore, whether the Early Palaeozoic carbonate rocks with a stable distribution and alarge thickness can secondarily generate hydrocarbon and form Primary oil and gas Pool is an important issueregarding the prospecting for Primary oil and gas Pools in the Lower Palaeozoic formations. Well Konggu 3,located in the northwestern Kongdian anticlinal structural belt, produced oil from the Primary Ordovician limestoneoil pool reserved in the Ordovician Fengfpog Formation. The crude oil Characteristics and oil-source correlationshow that oil source rock are Ordovician limestone. So it is a primary oil pool with source and reservoir rads inthe same formation. The studies on the secondsry hydrocarbon generation of source rocks and the primary oil ofWell Konggu 3 have a great significance to firmly prospect for Lower Palaeozoic primary oil and gas pools inHuabei area.

关键词： Subject heading Early Palaeozoic Primary reservoir Oil-source correlation Huanghua depression Huabei area

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Application of C5-C13 light hydrocarbons in depositional environment diagnosis

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Progress in Natural Science:Materials International 2008年第9期18卷 1129-1137页

作者： Peirong Wanga,b,, Guanjun Xu a,c, Tingrong Xiaoc, Dajiang Zhanga,c, Bin Zhanga,c a Key Laboratory of Petroleum Geochemistry, china National Petroleum Corporation, beijing 100083, china b Department of Organic Geochemistry, Yangtze University, Jingzhou 434023, china c Central Laboratory of Petroleum Geology, research institute of Petroleum exploration and Development, Petrochina, beijing 100083, china Key Laboratory of Petroleum Geochemistry China National Petroleum Corporation Beijing 100083 China Department of Organic Geochemistry Yangtze University Jingzhou 434023 China Central Laboratory of Petroleum Geology Research Institute of Petroleum Exploration and Development PetroChina Beijing 100083 China

Based on the geological background and Gammacerane/C31H(S + R) ratios, source rock depositional environments of the studied oil samples (194) from 13 oilfields were classified into three groups according to salinity:saline-lacustrine facies, fresh to brackish lacustrine facies (including limnetic facies), and semi-saline to saline facies (including marine facies of the Tarim Basin).C5-C13 compound groups in the crude oils were separated by GC, and about 286 compounds were qualitatively *** geochemical application of the C6-C13 compound groups and their ratios between each group with individual carbon number was *** studies show that (1) C6-C13 compound groups and their ratios in the crude oils could serve as new reliable parameters for oil-oil correlation because the C6-C13 light fractions are the major oil component, especially in light oil or condensate, in which they account for almost 90% of the whole oil;(2) the compound groups of C7 light hydrocarbons in oils derived from difierent depositional environments with difierent salinity have difierent characteristics;(3) C6-C13 compound groups and ratios may be afiected by other factors such as maturity, but they are mainly controlled by salinity of depositional waters.

关键词： Light hydrocarbons Crude oil Depositional environment Salinity

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Numerical simulation of predicting and reducing solid particle erosion of solid-liquid two-phase flow in a choke

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Petroleum Science 2009年第1期6卷 91-97页

作者： Li Guomei Wang Yueshe He Renyang Cao Xuewen Lin Changzhi Meng Tao State Key Laboratory of Multiphase Flow in Power Engineering Xi＇an Jiaotong University Xi＇an Shaanxi 710049 China china Special Equipment Inspection and research institute Beijing 100013 China School of Transport ＆ Storage and Civil Engineering China University of Petroleum Qingdao Shandong 266555 China Petroleum exploration and production research institute Sinopec Beijing 100083 China

Chokes are one of the most important components of downhole flow-control equipment. The particle erosion mathematical model, which considers particle-particle interaction, was established and used to simulate solid particle movement as well as particle erosion characteristics of the solid-liquid two-phase flow in a choke. The corresponding erosion reduction approach by setting ribs on the inner wall of the choke was advanced. This mathematical model includes three parts： the flow field simulation of the continuous carrier fluid by an Eulerian approach, the particle interaction simulation using the discrete particle hard sphere model by a Lagrangian approach and calculation of erosion rate using semiempirical correlations. The results show that particles accumulated in a narrow region from inlet to outlet of the choke and the dominating factor affecting particle motion is the fluid drag force. As a result, the optimization of rib geometrical parameters indicates that good anti-erosion performance can be achieved by four ribs, each of them with a height （H） of 3 mm and a width （B） of 5 mm equaling the interval between ribs （L）.

关键词： Solid-liquid two-phase flow discrete particle hard sphere model choke erosion rate antierosion numerical simulation

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Advances in Application of New Catalytic Materials in Petroleum Refining and Petrochemicals production

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china Petroleum Processing & Petrochemical Technology 2006年第1期8卷 1-5页

作者： He Yigong Lin Min Mu Xuhong Shu Xingtian (sinopec research institute of Petroleum Processing, beijing 100083) sinopec research institute of Petroleum Processing Beijing 100083

This article introduces the solid acid catalyst for isobutene/butylenes alkylation, the HTS Ti/Si zeolite for ammonoxidation of cyclohexanone and the noncrystalline alloy catalyst and magnetically stabi- lized bed for hydrofining of caprolactam that were developed recently by sinopec research institute of Petroleum Processing (RIPP).

关键词： catalyst material solid acid non-crystalline alloy magnetically stabilized bed technology

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Classification of carbonate gas condensate reservoirs using well test and production data analyses

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Petroleum Science 2011年第1期8卷 70-78页

作者： Li Yong Li Baozhu Hu Yongle Xia Jing Liu Zhaowei Deng Xingliang She Zhicheng Fan Kun research institute of Petroleum exploration and Development PetroChinaBeijing 100083.China china National Oil ＆ Gas exploration and Development Corporation PetroChinaBeijing 100034China Tarim Oilfield Company PetroChinaKorlaXingjiang 841000China

Carbonate reservoir patterns play an important role in the production performance of oil and gas wells,and it is usually classified through static data analysis which cannot reflect the actual well *** paper takes the Tazhong No.1 gas field in the Tarim Basin,china as an example to investigate the classification of carbonate *** classification method mainly combines well test analysis with production analysis—especially the Blasingame type curve *** on the characteristics of type curves for well test analysis and the Blasingame method,the relationship between the type curves and reservoir pattern was *** than 20 wells were analyzed and the reservoirs were classified into 3 major patterns with 7 ***,the classification results were validated by dynamic performance analysis of wells in the Tazhong No.1 gas *** the basis of the classification results,well stimulation（*** flooding in a single well） was carried out in three volatile-oil wells,and the oil recovery increased by up to 20%.

关键词： Carbonate reservoir pattern well test analysis production analysis type curve

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近20年中国石油储量变化分析

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石油与天然气地质 2005年第5期26卷 584-589页

作者：张抗中国石化石油勘探开发研究院北京100083

20世纪80年代以来,中国的石油工业处于储、产量相对稳定的壮年期。从1984年到2004年,中国累计的探明地质储量和可采储量呈起伏不大的平稳升势。其中,东部老油区仍是增储的主力,20年间地质储量年均增长4.6×108t,可采储量年均增量约为0.9... 详细信息

20世纪80年代以来,中国的石油工业处于储、产量相对稳定的壮年期。从1984年到2004年,中国累计的探明地质储量和可采储量呈起伏不大的平稳升势。其中,东部老油区仍是增储的主力,20年间地质储量年均增长4.6×108t,可采储量年均增量约为0.95×108t。西北区及海域地质储量年均增长分别为1.93×108t及1.11×108t,可采储量年均增量分别为0.396×108t及0.237×108t。从对未来经济发展更具影响的剩余可采储量看,中国石油剩余可采储量处于稳定的局面,20年期间平均年增量仅为0.1×108t。东部老油区已处于稳产阶段后期,其剩余可采储量已开始下降,但西北和海域的增加弥补了东部的下降。今后东部老油区与西北、海域之间的减、增平衡状况决定着全国石油剩余可采储量和产量的变化趋势。为保持中国石油产量的进一步提高,今后应加强东部挖潜,开拓西北及南海深水海域战略接替区。

关键词：地质储量可采储量剩余可呆储量变化趋势战略接替区

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A　COMPARISON　OF　WATER－OIL　RELATIVE　PERMEABILITY　BY　STEADY－STATE　FLOW　AND　UNSTEADY－STATE　FLOW　TECHNIQUES

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石油勘探与开发 1995年第1期 77-82页

作者： Li Ke-vin Dai Zhi-jian Jiang Yi-rong (research institute of Petroleum exploration and Devepment, CNPC. beijing 100083, P. R. china)

ＡＣＯＭＰＡＲＩＳＯＮＯＦＷＡＴＥＲ－ＯＩＬＲＥＬＡＴＩＶＥＰＥＲＭＥＡＢＩＬＩＴＹＢＹＳＴＥＡＤＹ－ＳＴＡＴＥＦＬＯＷＡＮＤＵＮＳＴＥＡＤＹ－ＳＴＡＴＥＦＬＯＷＴＥＣＨＮＩＱＵＥＳＡＣＯＭＰＡＲＩＳＯＮＯＦＷＡＴＥ... 详细信息

ＡＣＯＭＰＡＲＩＳＯＮＯＦＷＡＴＥＲ－ＯＩＬＲＥＬＡＴＩＶＥＰＥＲＭＥＡＢＩＬＩＴＹＢＹＳＴＥＡＤＹ－ＳＴＡＴＥＦＬＯＷＡＮＤＵＮＳＴＥＡＤＹ－ＳＴＡＴＥＦＬＯＷＴＥＣＨＮＩＱＵＥＳＡＣＯＭＰＡＲＩＳＯＮＯＦＷＡＴＥＲ－ＯＩＬＲＥＬＡＴＩＶＥＰＥＲＭ...

关键词： Water drive Relative permeability Unsteady flow Steady flow Core test

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