检索结果-南通市图书馆

Chinese Chemical Letters 2009年第3期20卷 344-347页

作者： Xue Mei Liao Wei Chu Yang Li FU Dong Zhoua Shi Zhong Luo Department of Chemical Engineering Sichuan University Chengdu 610065 China Research institute of Natural gas Technology Petrochina Southwest Oil and Gas Field Company Chengdu 610213 China

Mesoporous silica supported Cs2.5H0.5PW12O40 catalysts were prepared by impregnation method, and several silica supports with different pore size were utilized. N2 adsorption, XRD and ICP-AES techniques were utilized to characterize the silica supports and catalysts. XRD results showed that the dispersion of Cs2.5H0.5PW12 was better for the silica support with larger pore size. The catalytic activity results showed that the pore size played important role on the catalyst activity and the molecular weight of PTHF. When Cs2.5H0.5PW12O40 was dispersed on larger pore size silica support, the catalysts showed good performances for the synthesis of PTHE The molecular weight of PTHF product on the sample in which Cs2.5H0.5PW12O40 was dispersed on larger pore support was higher than that on the catalyst with smaller pore support. The leaching amounts of the active components for the supported Cs2.5H0.5PW12O40 catalysts were much lower. After five reaction cycles, there were still good activities and stabilities for the supported Cs2.5H0.5PW12O40 catalysts with larger pore silica supports. These results were much better than those of the supported heteropolyacid H3PW12O40 catalyst.

关键词： PTHF synthesis Cs2.5H0.5PW12O40 catalysts Mesoporous silica Pore size Stability

Effects of outer rim of rotors on performance of turbodrills

在线全文

学校读者我要写书评

暂无评论

排灌机械工程学报 2019年第3期37卷 199-203页

作者： GONG Pan GUO Chaohui FENG Ding WANG Peng ZHAO Yu XIANG Ru College of Mechanical Engineering Yangtze University Hubei Engineering Research Center for oil & gas Drilling and Completion Tools SINOPEC Research institute of Petroeum Engineering Hubei Cooperative Innovation Center of Unconventional oil and gas

Two turbine rotors with outer rim and without outer rim were designed to analyze the influence of outer rim of rotors on the performance of a turbodrill. Two 3D models of the turbine rotor with different structures were established by SolidWorks software. The numerical simulation analysis of the turbine with different rotor structures was carried out based on software of fluent and then the performance of them at different rotating speeds was obtained. The results show that the torque,pressure drop and hydraulic efficiency of the turbine rotor with outer rim are greater than that of the turbine rotor without outer rim. By comparing the turbine rotor with outer rim and without outer rim,its torque increases 20. 1%,pressure drop increases 8.7% and hydraulic efficiency increases 10.4% at the maximum efficiency point. The related research is of guiding significance to further optimization of turbine rotor structure.

关键词： turbine rotor outer rim performance numerical simulation

Viscosity profile prediction of a heavy crude oil during lifting in two deep artesian wells

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Chemical Engineering 2017年第7期25卷 976-982页

作者： Yibo Li Hao Gao Wanfen Pu Bing Wei Yafei Chen Dong Li Qiang Luo State Key Laboratory of oil and gas Reservoir Geology and Exploitation Southwest Petroleum University Research institute of Experiment and Detection Xinjiang Oilfield CompanyPetroChina

It has been known that the productivity of artesian wells is strongly dependent on the rheological properties of crude oils. This work targets two deep artesian wells(>5000 m) that are producing heavy crude oil. The impacts of well conditions including temperature, pressure and shear rate, on the crude oil rheology were comprehensively investigated and correlated using several empirical rheological models. The experimental data indicate that this heavy oil is very sensitive to temperature as result of microstructure change caused by hydrogen bonding. The rheological behavior of the heavy oil is also significantly impacted by the imposed pressure, i.e., the viscosity flow activation energy(Eμ) gently increases with the increasing pressure. The viscosity–shear rate data are well fitted to the power law model at low temperature. However, due to the transition of fluid feature at high temperature(Newtonian fluid), the measured viscosity was found to slightly deviate from the fitting data. Combining the evaluated correlations, the viscosity profile of the heavy crude oil in these two deep artesian wells as a function of well depth was predicted using the oilfield producing data.

关键词： Heavy oil Rheological properties Empirical correlation Viscosity profile predication Lifting process Artesian well

GIS based integration of multi-spectral remote sensing and morphostructural analysis for delineating potential areas of hydrocarbon exploration in Western Vindhyan Basin,India

在线全文

学校读者我要写书评

暂无评论

Energy Geoscience 2022年第2期3卷 191-201页

作者： Subhobroto Mazumde Ashish Misra Remote Sensing&Geomatics KDM Institute of Petroleum ExplorationOil and Natural Gas Corporation LimitedIndia

The Chambal Valley forms the western part of the Proterozoic Vindhyan Basin that has been less studied and poorly explored from the hydrocarbon perspective than its eastern counterpartdthe Son Valley *** the present manuscript,attempts have been made to use remote sensing and GIS(geographic information system)based analysis to focus on the northern part of Chambal Valley to decipher its tectonics and structural configuration,its tectonic relation with the Son Valley Vindhyans,Bundelkhand Massif and Ganga *** study also assumes significance as it attempts to delineate potential lead areas for hydrocarbon exploration in Chambal *** part of the study,a detailed spectral analysis based on image data sets is carried out to identify areas of microseeps as proxies of potential hydrocarbon ***,a neotectonics-based geomorphic analysis is carried out to delineate a fault network and geomorphic highs that act as aliases to subsurface faults and structural *** results are subsequently validated by available geophysical data and extensive fieldwork,and suggest four structural trends in the Chambal Valley as striking NE-SW,E-W,NW-SE and NeS,of which the NW-SE trend is the oldest,followed by the NE-SW,E-W and NeS trends.A GIS-based analysis of the E-W trends indicates that these are probably manifestations of the westward continuity of E-W-trending shear zones developed in Bundelkhand massif within the basement of the Chambal *** remote sensing studies of the shear zone network exposed in the Bundelkhand massif indicate the pattern to be replicated on a larger scale in the morphostructural fault layout in the adjacent Ganga Basin,implying these shear zones may be continuing in the basement of Ganga Basin and controlling structures developed later,and consequently the different petroleum system elements in the basin.A dip data based structural analysis of the Chambal Valley describes a regional synform attributed with an almost

关键词： Chambal Vindhyans Hydrocarbon Remote sensing Shear zone Syncline

Cenozoic Fault Distribution Characteristics and Evolution in Qikou Sag of Bohai 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

Journal of Earth Science 2014年第4期25卷 701-712页

作者： Dongdong Zhang Chiyang Liu Yijian Huang Siqian Chen Yi Lu Zhipan Zhang State Key Laboratory of Continental Dynamics Institute of Oil and Gas Basin Northwest University Research institute of Exploration & Development Dagang Oilfield Company Petro China

Qikou sag, located in north-center of Huanghua depression in Bohai Basin, is a Cenozoic sag with rich hydrocarbon. As a microcosm of Bohai Basin, the fault characteristics of Cenozoic structural layers in Qikou sag could indicate and record the evolution of Cenozoic stress field in Bohai Basin. Based on the latest 3-D seismic data, the study takes statistics on the fault system of Cenozoic structural layers and analyzes the fault throws of major large faults along the strikes in different periods in Qikou sag, then the fault distribution regularities and the fault direction characteristics in each structural layer are summarized. The result shows that during Cenozoic, the fault activity strength migrates from southwest to northeast and the strikes of faults changes from northwestward in Sha-3 period to nearly east-westward since Sha-1 period.

关键词： Bohai Basin Qikou sag fault statistics tectonic migration.

gas accumulation conditions and key technologies for exploration & development of Sinian and Cambrian gas reservoirs in Anyue gasfield

在线全文

学校读者我要写书评

暂无评论

Petroleum Research 2018年第3期3卷 221-238页

作者： Yueming Yang Yu Yang Guang Yang Jiarong Song LongWen Chuanguang Deng Maolong Xia Qi Ran Guobin Duan Bing Luo Bing Xie PetroChina Southwest oil&gas Field Company Sichuan610051China Research institute of Exploration and Development PetroChina Southwest Oil&Gas Field CompanySichuan610051China Exploration Division PetroChina Southwest Oil&Gas Field CompanySichuan610051China Chongqing Shale gas Exploration and Development Co. Ltd.Chongqing400023China

Exploration of the Sinian-Lower Paleozoic formations in the Sichuan Basin starts from the 1950s,and is tortuous and *** summarize the exploration experiences is of great significance of reference for exploration of oil and gas in deep carbonate rocks of the Sichuan *** accumulation in the Anyue oversize gasfield is chiefly controlled by the Deyang-Anyue intra-platform rift and central Sichuan *** intra-platform rift controls the scale hydrocarbon generation center and effective hydrocarbon *** Anyue gasfield is characterized by near-source hydrocarbon *** marginal zone of intra-platform rift and high part of the paleouplift control the scale distribution of favorable facies belts of reservoir development,and overlapped by paleokarstic reformation,the reservoirs are widely *** intra-platform rift and paleouplift jointly control formation of the scale traps and hydrocarbon *** reservoir features and major controlling factors for hydrocarbon accumulation have some differences in the main play strata,such as Longwangmiao Formation,and Member 4 and Member 2 of Dengying *** gas reservoir in the Longwangmiao Formation is a lithologic gas reservoir under the tectonic setting,and the inherited paleouplift is a key for reservoir formation and hydrocarbon *** gas reservoir in the Member 4 of Dengying Formation is mainly controlled by large structural-stratigraphic composite traps,and the gas reservoir in the Member 2 of Dengying Formation is the structural *** of the large gasfields in the Dengying Formation is controlled by the intra-platform rift,near-source hydrocarbon-reservoir configuration controlled by the ancient erosion plane and stratigraphic sealing in the updip *** exploration and development of the Anyue gasfield,four series of technologies are developed,namely,reservoir seismic fine description technology,well logging fine evaluation technology of gas

关键词： Anyue gasfield Dengying Formation Longwangmiao Formation gas reservoir feature Enrichment regularity Exploration and development technology

Numerical investigation of proppant transportation characteristics in hydraulically fractured wedge fractures

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 2024年第4期10卷 660-671页

作者： Xiaofeng Sun Jinxin Bao Zhipeng Li Jingyu Qu Key Laboratory of Enhanced oil and gas Recovery of Ministry of Education Northeast Petroleum University Sanya Offshore oil & gas Research institute Northeast Petroleum University China Petroleum Bohai Drilling Engineering Co. Ltd.Fourth Drilling Engineering Branch

Hydraulic fracturing creates multiple induced fractures and micro-fractures, forming a complex fracture network in the reservoir. The study of the transport and distribution of the proppant within the fracture network is critical to the design and evaluation. However, existing simulation studies of proppant transport tend to be overly idealized and neglect the inhomogeneity of fracture widths that occur after fracturing. To address these issues, this study employs computational fluid dynamics(CFD) to study the transportation of fracturing fluid and proppant within a fracture network. The flow dynamics of solidliquid two-phase flow in fractures are simulated using the Euler-Euler multiphase flow model. Considering the actual variables in field construction and the inherent inhomogeneity in realistic fracture structures, a three-dimensional model was established to capture the gradual variation in fracture *** accuracy of this model was verified through a comparative analysis with physical experiments. On this basis, an investigation was conducted to explore the impact of particle size, particle density, particle volume concentration, and injection velocity on proppant transportation. The results demonstrate that,in contrast to conventional rectangular fractures, sandbanks formed from wedge fractures exhibit a lower height, which facilitates improved transportation into deeper fractures. Furthermore, particle concentration primarily influences distal fractures, with proppant particle size being second. The injection velocity has a significant impact on the height of the sandbank located in proximity to the fracture *** research findings provide a deeper understanding of the transport and distribution of proppants within wedge fractures, thereby establishing a theoretical basis for the analysis and engineering guidance in on-site hydraulic fracturing construction.

关键词： Proppant transport Wedge fracture Computational fluid dynamics (CFD) Particle-fluid flow Hydraulic fracturing

Formation characteristics and resource potential of Jurassic tight oil in Sichuan Basin

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Petroleum Research 2017年第4期2卷 301-314页

作者： Denghua Li Jianzhong Li Bin Zhang Jiajing Yang Shaoyong Wang Strategic Research Center of oil and gas Resources Ministry of Land and ResourcesBeijing 100034China PetroChina Research institute of Petroleum Exploration and Development Beijing 100083China institute of Exploration and Development PetroChina Southwest Oil and Gas Field CompanyChengdu 610041China

Through test analysis of large amount of cores,rock fragments and crude oil samples,and in combination with dynamic data of production from 456 oil wells,hydrocarbon generation potentials of four major source rocks and accumulation characteristics of three major pay layers in the Jurassic of Sichun Basin were well *** indicated that source rocks in the Lianggaoshan Formation,the Da'anzhai Member and the Dongyuemiao Member mainly generated oil,and those in the Zhenzhuchong Member dominantly generated gas;the organic-rich source rocks controlled distribution of sweet spots of tight oil,and most industrial oil wells were located at the area with high-quality source rocks(TOC>1.2%);and micron-sized pore throats were effective storage space,and fractures played a key role in initial high *** tight oil in the Sichuan Basin was characterized by light oil,high gas-oil ratio and abnormal high pressure,which were favorable for tight oil flow and *** methods(i.e.,small bin method,resource abundance analogy method,EUR analogy method and total organic carbon method)were used to estimate Jurassic oil in-place in the Sichuan Basin which ranged from 2×10^(9) to 3×10^(9) *** analysis of main controlling factors of resource enrichment,the grading criteria were established for the evaluation of oil in-place in the Sichuan *** the small bin method,the oil in-place of Type I,Type II and Type III was 1.611×10^(9)t,0.477×10^(9)t and 0.289×10^(9)t,*** was predicted that the largest exploration potential of the Da'anzhai Member was in the Nanchong-Suining area and the east of Liangping area,the most favorable exploration area of the Lianggaoshan Formation was in the Guang'anNanchong-Suining-Yilong area,and the good exploration prospect of the Dongyuemiao Member was in the south of the Guang'an-Suining area.

关键词： Tight oil High-quality source rock Preservation condition Pore throat Sweet spot Resource evaluation Jurassic Sichuan Baisn

Intelligent prediction and integral analysis of shale oil and gas sweet spots

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 2018年第4期15卷 744-755页

作者： Ke-Ran Qian Zhi-Liang He Xi-Wu Liu Ye-Quan Chen State Key Laboratory of Shale oil and gas Enrichment Mechanisms and Effective Development Beijing 100083China Key Laboratory of Shale oil and gas Exploration &Production SINOPECBeijing 100083China Sinopec Petroleum Exploration and Production Research institute Beijing 100083China

Shale reservoirs are characterized by low porosity and strong anisotropy. Conventional geophysical methods are far from perfect when it comes to the prediction of shale sweet spot locations, and even less reliable when attempting to delineate unconventional features of shale oil and gas. Based on some mathematical algorithms such as fuzzy mathematics, machine learning and multiple regression analysis, an effective workflow is proposed to allow intelligent prediction of sweet spots and comprehensive quantitative characterization of shale oil and gas reservoirs. This workflow can effectively combine multi-scale and multi-disciplinary data such as geology, well drilling, logging and seismic data. Following the maximum subordination and attribute optimization principle, we establish a machine learning model by adopting the support vector machine method to arrive at multi-attribute prediction of reservoir sweet spot location. Additionally, multiple regression analysis technology is applied to quantitatively predict a number of sweet spot attributes. The practical application of these methods to areas of interest shows high accuracy of sweet spot prediction, indicating that it is a good approach for describing the distribution of high-quality regions within shale reservoirs. Based on these sweet spot attributes, quantitative characterization of unconventional reservoirs can provide a reliable evaluation of shale reservoir potential.

关键词： Shale reservoir Machine learning Support vector machine Sweet spot prediction

Formation mechanisms and sequence response of authigenic grain-coating chlorite: evidence from the Upper Triassic Xujiahe Formation in the southern Sichuan Basin, China

在线全文

学校读者我要写书评

暂无评论

Petroleum Science 2016年第4期13卷 657-668页

作者： Yu Yu Liang-Biao Lin Jian Gao State Key Laboratory of oil and gas Reservoir Geology and Exploitation Chengdu University of Technology institute of Sedimentary Geology Chengdu University of Technology

Authigenic grain-coating chlorite is widely distributed in the clastic rocks of many sedimentary basins around the world. These iron minerals were mainly derived from flocculent precipitates formed when rivers flow into the ocean, especially in deltaic environments with high hydrodynamic conditions. At the same time, sandstone sequences with grain-coating chlorites also tend to have relatively high glauconite and pyrite content. EPMA composition analysis shows that glauconites with ‘‘high Al and low Fe’’ content indicate slightly to semi-saline marine environments with weak alkaline and weakly reducing conditions. By analyzing the chlorite-containing sandstone bodies of the southern Sichuan Xujiahe Formation, this study found that chlorite was mainly distributed in sedimentary microfacies, including underwater distributary channels, distributary channels, shallow lake sandstone dams, and mouth bars. Chlorite had a tendency to form in the upper parts of sandstone bodies with signs of increased base level, representing the influence of marine（lacustrine）transgression. This is believed to be influenced by megamonsoons in the Middle and Upper Yangtze Region during the Late Triassic Epoch. During periods of abundant precipitation, river discharges increased and more Fe particulates flowed into the ocean（lake）. In the meantime,increases or decreases in lake level were only affected byprecipitation for short periods of time. The sedimentary environment shifted from weakly oxidizing to weak alkaline, weakly reducing conditions as sea level increased, and Fe-rich minerals as authigenic chlorite and glauconite began to form and deposit.

关键词： Sichuan Basin Xujiahe Formation Graincoating chlorite Glauconite Pyrite