检索结果-南通市图书馆

The deposition of asphaltenes under high-temperature and highpressure (HTHP) conditions

在线全文

学校读者我要写书评

暂无评论

Petroleum Science 2023年第1期20卷 611-618页

作者： Rui-Ying Xiong Ji-Xiang Guo Wyclif Kiyingi Hai-Xia Xu Xin-Peng Wu Unconventional Petroleum Research Institute China University of PetroleumBeijing102249China Petroleum Engineering Research Institute of Tarim oilfield China National Petroleum CorporationXinjiang84100China

In this work,the factors affecting asphaltenes deposition in high-temperature and high-pressure wells were studied using backscattered light and PVT equipment customized to suit the well *** an examination of the intensity of backscattered light,it was revealed that there exists a linear relationship between temperature and asphaltene precipitation within a specific temperature *** this range,a decrease in temperature tends to accelerate asphaltene ***,the impacts of pressure and gas-oil ratio are more *** pressure depletion induces the asphaltenes to precipitate out of the solution,followed by the formation of flocs below the bubble *** addition,an increase in the gas-oil ratio causes a more severe asphaltene deposition,shifting the location of asphaltenes to deep well sections.

关键词： HTHP reservoir Asphaltene Aggregation Gas-oil ratio HTHP PVT cell Back-scattered light

Inter-well interferences and their influencing factors during water flooding in fractured-vuggy carbonate reservoirs

在线全文

学校读者我要写书评

暂无评论

Petroleum Exploration and Development 2020年第5期47卷 1062-1073页

作者： WANG Jing ZHAO Wei LIU Huiqing LIU Fangna ZHANG Tuozheng DOU Liangbin YANG Xinling LI Bo State Key Laboratory of Petroleum Resources and Prospecting in China University of Petroleum Beijing 102249China MOE Key Laboratory of Petroleum Engineering in China University of Petroleum Beijing 102249China College of Petroleum Engineering Xi’an Shiyou UniversityXi’an 710065China PetroChina xinjiang oilfield Company Xinjiang 834000China

Based on the characteristics of injection-production units in fractured-vuggy carbonate reservoirs,nine groups of experiments were designed and performed to analyze the interference characteristics and their influencing factors during water *** on percolation theory,an inversion model for simulating waterflooding interferences was proposed to study the influence laws of different factors on interference *** results show that well spacing,permeability ratio,cave size,and cave location all affect the interference characteristics of water *** the cave is located in high permeability fractures,or in the small well spacing direction,or close to the producer in an injection-production unit,the effects of water flooding are much *** the large cave is located in the high-permeability or small well spacing direction,the well in the direction with lower permeability or smaller well spacing will see water breakthrough *** the cave is in the higher permeability direction and the reserves between the water injector and producer differ greatly,the conductivity differences in different injection-production directions are favorable for water *** the injection-production well pattern is constructed or recombined,it’s better to make the reserves of caves in different injection-production directions proportional to permeability,and inversely proportional to the well *** well close to the cave should be a producer,and the well far from the cave should be an *** ratios of cave reserves to fracture reserves correspond to different optimal well spacings and optimal permeability ***,both optimal well spacing and optimal permeability ratio increase as the ratio of cave reserves to fracture reserves increases.

关键词： fractured-vuggy carbonate reservoir water flooding inter-well interference physical modeling experiment numerical inversion

同方期刊数据库

Oil-source rock correlation and quantitative assessment of Ordovician mixed oils in the Tazhong Uplift, Tarim Basin

在线全文

学校读者我要写书评

暂无评论

Petroleum Science 2010年第2期7卷 179-191页

作者： Li Sumei Pang Xiongqi Zhang Baoshou Xiao Zhongyao Gu Qiaoyuan State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum Beijing 102249 China Tarim oilfield Company PetroChina Korla Xinjiang 841000 China

The origin of the marine oils in the Tarim Basin has long been a disputed topic. A total of 58 DST （drill stem test） crude oil and 8 rock samples were investigated using a comprehensive geochemical method to characterize and identify the origin of the Ordovician oils in the Tazhong Uplift, Tarim Basin, northwest China. Detailed oil–oil and oil–source rock correlations show that the majority of the oils have typical biomarker characteristics of the Middle-Upper Ordovician （O2＋3） source rock and the related crude oil. These characteristics include a distinct ＂V-shaped＂ relative abundance of C27, C28 and C29 regular steranes, low abundance of dinosterane, 24-norcholestanes, triaromatic dinosteroids and gammacerane. Only a few oils display typical biomarker characteristics indicating the Cambrian–Lower Ordovician （∈-O1） genetic affinity, such as linear or anti ＂L＂ shape distribution of C27, C28 and C29 regular sterane, with relatively high concentrations of dinosterane, 24-norcholestanes, triaromatic dinosteroids and gammacerane. It appears that most of the Ordovician oils in the Tazhong Uplift were derived from the O2＋3 intervals, as suggested by previous studies. However, the compound specific n-alkane stable carbon isotope data indicate that the Ordovician oils are mixtures from both the ∈-O1 and O2＋3 source rocks rather than from the O2＋3 strata alone. It was calculated that the proportion of the∈-O1 genetic affinity oils mixed is about 10.8%-74.1%, with an increasing trend with increasing burial depth. This new oil-mixing model is critical for understanding hydrocarbon generation and accumulation mechanisms in the region, and may have important implications for further hydrocarbon exploration in the Tarim Basin.

关键词： Biomarker compound specific isotope oil–source rock correlation mixed oil

Structural characteristics of the basement and the prospective of favorable oil and gas blocks in the Tacheng basin

在线全文

学校读者我要写书评

暂无评论

Earthquake Science 2012年第5期25卷 527-534页

作者： Guoqing Zhang Junmeng Zhao Hua Bai Ming Wan Xiaoyang Guo Research Institute of Exploration and Development Xinjiang Oilfield CompanyPetroChina Institute of Tibetan Plateau Research Chinese Academy of Sciences

The Tacheng basin has been identified as a Carboniferous basement with a central uplift, sur- rounded by orogenic belts. This identification was based on the comprehensive analysis of field outcrops, regional magnetic and gravimetric data, skeleton seismic profiles, magnetotelluric profiles and drilling data. Here, we present gravimetric and magnetic data analyses of the basement structures of the Tacheng basin and its base formation. We also provide a magnetotelluric profile analysis of the structural features and tectonic framework of basin-mountain patterns. We use local geology, drilling data, and other comprehensive information to document the tectonic framework of the basement of the basin. Small-scale nappe structures are found in the northern basin, whereas stronger and more pronounced thrusting structures are found to the south and east of the basin. The basin is divided into four first-order tectonic units： a central uplift, a northern depression, a southeastern depression and a western depression. In addition, the Emin sag is suggested as a possible reservoir for oil and gas.

关键词： northern xinjiang Tacheng basin basement structure basin and mountain relation-ship tectonic unit division favorable area

Braided river and distribution patterns of sand bodies of Jurassic Badaowan formation in Block T13 of Junggar basin

在线全文

学校读者我要写书评

暂无评论

Mining Science and Technology 2010年第3期20卷 446-452页

作者： SUN Xiaofang JIN Zhenkui WANG Zhaofeng HUANG Xiaoping GU Junfeng Faculty of Information & Resource China University of Petroleum Beijing 102249 China Exploration and Exploitation Institute of xinjiang oilfield Company Karamayi 834003 China

In order to determine the planar and volume distribution of sand bodies of the Jurassic Badaowan formation in Block T13 of Junggar basin,we used analysis of field outcrop and 3D seismic data,which play an essential role in areas of sparse well *** describe sedimentary facies characteristics,sand body planforms,width and connectivity patterns of sand bodies,and vertical associations and successions by acoustic impedance inversion technology and sedimentological *** of our study show braided fluvial strata deposits in the Jurassic Badaowan *** sand body is approximately lenticular in *** width of each sand body falls in the range 100～800 m,with most between 200 and 400 *** sand bodies vary in thickness from 4 to 13 m,with most below 9 *** width/thickness ratios lie in the range 20～*** connectivity of braided fluvial channel sand bodies is controlled by changes of accommodation *** fining-upward sedimentary cycle of base-level rise is recognized in Badaowan formation,representing an upward rise of base *** connectivity of sand bodies was found to be greatest in the early stage of base-level rise,becoming progressively worse with increasing base-level rise.

关键词： Block T13 Badaowan formation braided river sand body distribution patterns

Origin of gas condensate reservoir in Fuman oilfield, Tarim Basin, NW China

在线全文

学校读者我要写书评

暂无评论

Petroleum Exploration and Development 2023年第6期50卷 1295-1307页

作者： WANG Qinghua Tarim oilfield Company PetroChinaKorlaXinjiang 841000China R&D Center for Ultra-Deep Complex Reservoir Exploration and Development CNPCKorlaXinjiang 841000China Engineering Research Center of Ultra-deep Complex Oil and Gas Reservoir Exploration and Development Xinjiang Uygur Autonomous RegionKorlaXinjiang 841000China

To understand the reservoir property and hydrocarbon accumulation conditions of the Middle and Upper Ordovician intraplatform shoal between ultra-deep main strike-slip faults in Fuman oilfield of the Tarim Basin, China, the main strike-slip faults in and around well FD1 in the basin were analyzed in terms of sedimentary facies, sequence stratigraphy, intraplatform shoal reservoir property, and oil and gas origins, based on drilling data. The Yingshan Formation intraplatform shoal between the main strike-slip faults is superimposed with low-order faults to form a new type of hydrocarbon play. Firstly, hydrocarbons generated from the Lower Cambrian Yuertusi Formation source rocks vertically migrated into the second member of Yingshan Formation through the main strike-slip faults, and then migrated laterally until they were accumulated. A small amount of oil from Well FD1 came from the Yuertusi Formation source rocks in the mature stage, and a large amount of gas originated from oil cracking in the ultra-deep reservoirs. Therefore, the secondary gas condensate reservoir in Well FD1 is characterized by high gas to oil ratio, dry gas (dryness coefficient being 0.970) and hybrid origin. This new type of hydrocarbon play characterized by intraplatform shoal and low-order fault suggests a prospect of continuous hydrocarbon-bearing area in Fuman oilfield, which will expand the ultrap-deep oil and gas exploration in the oilfield.

关键词： low-order fault intraplatform shoal ultra-deep Yingshan Formation oil cracked gas condensate gas Fuman oilfield Tarim Basin

Nonlinear flow numerical simulation of low-permeability reservoir

在线全文

学校读者我要写书评

暂无评论

Journal of Central South University 2012年第7期19卷 1980-1987页

作者：于荣泽卞亚南周舒王楷军吕琦陈朝辉 PetroChina Research Institute of Petroleum Exploration&Development-Langfang Special Oil Development Company of Liaohe oilfield Company Down-hole Service Company of xinjiang oilfield Company Geological Scientific Research Institute of Shengli oilfield Company CNOOC Energy Technology&Service-oilfield Engineering Research Institute

A nonlinear flow reservoir mathematical model was established based on the flow characteristic of low-permeability *** well-grid equations were deduced and the dimensionless permeability coefficient was introduced to describe the permeability variation of nonlinear *** nonlinear flow numerical simulation program was compiled based on black-oil model.A quarter of five-spot well unit was simulated to study the effect of nonlinear flow on the exploitation of low-permeability *** comprehensive comparison and analysis of the simulation results of Darcy flow,quasi-linear flow and nonlinear flow were *** dimensionless permeability coefficient distribution was gained to describe the nonlinear flow *** result shows that compared with the results of Darcy flow,when considering nonlinear flow,the oil production is low,and production decline is *** fluid flow in reservoir consumes more driving energy,which reduces the water flooding *** flow model overstates the reservoir flow capability,and quasi-linear flow model overstates the reservoir flow *** flow ability of the formation near the well and artificial fracture is strong while the flow ability of the formation far away from the main streamline is *** nonlinear flow area is much larger than that of quasi-linear flow during the fluid flow in low-permeability *** water propelling speed of nonlinear flow is greatly slower than that of Darcy flow in the vertical direction of artificial fracture,and the nonlinear flow should be taken into account in the well pattern arrangement of low-permeability reservoir.

关键词： low-permeability reservoir nonlinear flow mathematical model numerical simulation

Micro-pore structure and oil displacement mechanism analysis for deep zone and low permeability reservoir in Mobei oilfield

在线全文

学校读者我要写书评

暂无评论

Petroleum Research 2018年第2期3卷 159-164页

作者： Haibin Su Ninghong Jia Yandong Yang Zhigang Wang Zhibin Jiang Lijuan Feng Jiru Yang Weifeng Lv PetroChina xinjiang oilfield Research Institute of Exploration and DevelopmentKaramayXinjiang843000China State Key Laboratory of Enhance Oil Recovery PetroChina Research Institute of Petroleum Exploration and DevelopmentBeijing100083China Department of Petroleum Engineering China University of Petroleum(Beijing)Beijing102249China Engineering Technology Research Institute of xinjiang oilfield Company KaramayXinjiang843000China Department of Polymer Science and Engineering School of Chemistry and Chemical EngineeringNanjing UniversityNanjing210046China

The Mobei reservoir is a low-permeability-sandstone reservoir,due to differences in pore geometry,it can be divided into two independent reservoirs:A1 reservoir and A2 *** better understanding the water flooding development effects of Mobei reservoir,the mercury intrusion porosimetry,water flooding CT scanning and micro-CT scanning experiments are used in this *** result shows that the reservoir has the strong heterogeneity which is weaken gradually from A1 reservoir to A2 *** pore radius is mainly distributed in the 100e200 microns,the throat radius is mainly distributed in the 1e3 *** water flooding core experiment in each reservoir shows a short water-free oil production period and rapid water cut after *** A2 reservoir core flooding process is similar to piston displacement,the A1 reservoir core flooding process refers to the phenomenon(The fingering phenomenon in the process of core flooding in the A1 reservoir is obvious).The calculated water drive efficiency of the A2 reservoir is 61.2%,which is higher than 49.1%of the A1 *** to the CT scanning process,the Mobei oilfield has low micro displacement efficiency and the A1 reservoir has a smaller spread(sweep area)and higher residual oil saturation.

关键词： Low permeability reservoir Oil displacement efficiency CT scanning Micro-CT Mobei oilfield

Oil accumulation related to migration of source kitchens in the Lukeqin structural belt, Turpan-Hami Basin, China

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Petroleum Science 2010年第3期7卷 355-361页

作者： Liu Bo Huang Zhilong Tu Xiaoxian Sang Tingyi Chen Xuan State Key Laboratory of Petroleum Resource and Prospecting China University of Petroleum Beijing 102249 China PetroChina Turpan-Hami oilfield Company Hami Xinjiang 839009 China

The Lukeqin structural belt is the main heavy oil accumulation zone in the Turpan-Hami Basin. The recent discovery of light oil in the Triassic indicates that there may be multiple source kitchens contributing to the oil accumulation. According to oil geochemical analysis and oil-source correlation, the oil in deep and shallow reservoirs of the Lukeqin oilfield presents different physical and saturated hydrocarbon mass spectrum characteristics. The Triassic heavy oil is from the northern Upper Permian lacustrine source rocks, and the light oil represented by the Yudong-9 Well is from the northwestern Lower Jurassic coal-measure source rocks. The timing of oil charging was determined by K/Ar isotope dating, reservoir fluid inclusion analysis and the evolution history of different source rocks. In summary, the accumulation process consists of two stages. From the end of Triassic to early Jurassic, the northern Permian source kitchen generated a considerable amount of oil, which was finally degraded to heavy oil, migrated to the south and then accumulated. The northwestern Jurassic coal-measure source kitchen began to generate oil at the end of Cretaceous, while the northern source kitchen could only generate a little hydrocarbon. The heavy oil and the light oil have different source rock locations, migration directions and accumulation times. The migration of hydrocarbon source kitchens affects the distribution of heavy oil and light oil reservoirs at the present time.

关键词： Source kitchen light oil oil-source correlation timing of oil charging Turpan-Hami Basin