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Paleoenvironment evolution and organic matter enrichment mechanisms in the first member of the Qingshankou Formation,Songliao Basin,China

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Frontiers of Earth Science 2024年第2期18卷 364-383页

作者： Ying LI Min WANG Yu YAN Xin WANG Jinyou ZHANG Xuefeng BAI Yuchen ZHANG Jiaheng XUE Junsheng FEI Lianbin ZHANG Guojun WANG School of Geoscience China University of Petroleum(East China)Qingdao 266580China Shandong Provincial Key Laboratory of Deep Oil and Gas Qingdao 266580China Exploration and Development Research institute of daqing Oilfield Co Ltd. Daqing 163712China Exploration division PetroChina Daqing Oilfield CompanyDaqing 163453China Department of Physics Xiamen University MalaysiaBandar Sunsuria 43900Malaysia

Organic matter is the basis for oil and gas generation,and the depositional environment controls its *** first member of the Qingshankou Formation(K_(2)qn^(1))in Songliao Basin has a thick organic-rich shale and so is an important target section for shale oil exploration and *** the Gulong Sag,shale samples from this unit were collected over the full length of the *** characterization of the environments of deposition(EOD)of K_(2)qn^(1)was improved by utilizing lithological characteristics,thin section observations,elemental compositions,and organic carbon *** with the normalization coefficients proposed in this paper,an organic matter correlation model was established to elucidate the factors that influence organic matter *** the bottom to the top of K2qn1,the lake depth gradually becomes shallower,the primary productivity first decreases and then increases,the reducing conditions become stronger and then weaker,the water salinity gradually decreases,the climate first becomes semi-humid and then warm and humid,and the input of terrigenous debris first decreases and then increases.A major marine transgression at the base of the K_(2)qn^(1)᾽s brought in nutrients to increase primary productivity,and the density-stratified reducing environment preserved and enriched organic *** primary productivity occurred during the middle of the deposition of the K_(2)qn^(1),while terrigenous input is *** matter is preserved in reduced deep lake environments,resulting in organic matter-rich black *** lake became shallower,and the salinity decreased in the upper part of K_(2)qn^(1).Benthic organisms rapidly multiplied,consuming large amounts of oxygen and destroying the previously depositional environment,resulting in a reducing environment disturbed by benthic organisms with poor preservation conditions and the lowest organic matter content.

关键词： major and trace elements paleoenvironment evolution OM enrichment mechanism lacustrine shale Songliao Basin Qingshankou Formation

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The influence of surface roughness and deformation on dechromization of a Cu-Cr alloy

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Rare Metals 2006年第2期25卷 166-171页

作者： YU Cuiyan LIU Jianhua ZHOU Limin XU Tao Department of Applied Technology Daqing Petroleum Institute Daqing 163318 China Key Laboratory of Metastable Materials Science and Technology Yanshan University Qinhuangdao 066004 China College of Electric Engineering Yanshan University Qinhuangdao 066004 China

In order to realize the dechromization of a Cu-Cr alloy in HCl solution, the influence of surface roughness and deformation on dechromization of the Cu-Cr alloy was studied by means of metallographic observation, TEM, SEM/EDX, and CH1660A electrochemical instrument. The results showed that the bigger the sample＇s deformation and surface roughness, the shorter the incubation time of dechromization of the Cu-Cr alloy, and the trend of dechromization increases. Simultaneously, the deformation can increase the dechromization rate, invite stress corrosion, and decrease the compactibifity of the microstructure of the dechromization layer. And yet the surface roughness does not obviously affect the dechromization rate and the compactibility of the dechromization layer.

关键词： Cu-Cr alloy dechromization corrosion surface roughness deformation

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Experimental studies on perturbed acoustic resonant spectroscopy by a small rock sample in a cylindrical cavity

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Science China(Physics,Mechanics & Astronomy) 2006年第6期49卷 683-701页

作者： CHEN Dehua1,2,WANG Xiuming2,3,CONG Jiansheng1,XU Delong1,SONG Yanjie1 & MA Shuilong4 1. Department of Geophysics,daqing petroleum institute,daqing 163318,China 2. institute of Acoustics,Chinese Academy of Sciences,Beijing 100080,China 3. division of petroleum,Australian Commonwealth Scientific and Industrial Research Organization,Bent-ley WA 6102,Australia 4. daqing Testing and Technology Services Corporation,daqing 163153,China Department of Geophysics Daqing Petroleum Institute Daqing China institute of Acoustics Chinese Academy of Sciences Beijing China division of petroleum Australian Commonwealth Scientific and Industrial Research Organization Bentley Australia daqing Testing and Technology Services Corporation Daqing China

A measurement system for acoustic resonant spectroscopy (ARS) is estab-lished,and the effects of resonant cavity geometry,inner perturbation samples and envi-ronmental temperature on the ARS are investigated. The ARSs of the small samples with various sizes and acoustic properties are measured. The results show that at the normal pressure,the resonant frequency decreases gradually with the increase of liquid tem-perature in the cylindrical cavity,while the resonant amplitude increases. At certain pres-sure and temperature,both the resonant frequency and the amplitude decrease greatly when there exist air bubbles inside the cavity fluid. The ARS is apparently affected by the sample porosity and the sample location in the resonant cavity. At the middle of the cavity,the resonant frequencies reach their maximum values for all of the measurement samples. The resonant frequencies of the porous rock samples are smaller than those of the com-pacted samples if other acoustic parameters are the same. As the sample is moved from the top to the middle of the cavity along its axis,the resonant amplitude increases gradu-ally for the compacted rocks while decreases for the unconsolidated rocks. Furthermore,the resonant amplitude increases firstly and then decreases if the porosity of the rock sample is relatively small. In addition,through the comparisons between the experimental and theoretical results,it is found that the effects of the acoustic parameters and sizes of the samples and the size of the cylindrical cavity on the laboratory results agree well with the theoretical ones qualitatively. These results may provide basic reference for the ex-periment study of rock acoustic properties in a low frequency using ARS.

关键词： acoustic resonant spectroscopy,acoustic velocity and attenuation,experiment measurement,rock acoustic property.

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Corrosion behavior of CuCrNiAl alloy in HCl solutions

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中国有色金属学会会刊：英文版 2006年第1期16卷 229-233页

作者：于翠艳常立民周利敏林红岩 Department of Applied Technology Daqing Petroleum Institute Daqing 163318 China Analysis and Measure Center Jilin Normal University Siping 136000 China College of Electric Engineering Yanshan University Qinhuangdao 066004 China

The corrosion behavior of a CuCrNiAl alloy in HCl solutions was studied by means of metallograph, XRD, SEM/EDX and TEM methods. The results show that in low concentration of HCl solutions, Cu of CuCrNiAl alloy is more easily subject to corrsion than Cr; the dechromisation of the CuCrNiAl alloy occurs at a certain concentration of HCl solutions, at the same time Al of CuCrNiAl alloy is subject to corrosion also. The dechromisation corrosion occurs initially at the interface between Cr phase and Cu phase, then it gradually extends Cr phase until Cr phase is dissolved completely. It is also revealed that the tendency of dechromisaion of the CuCrNiAl alloy increases with the increase in concentration and temperature of HCl solutions.

关键词： CuCrNiAl 盐酸 XRD SEM/EDX TEM 腐蚀铜合金

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Corrosion behavior of a CuCrNiAl alloy in the presence of NaCl deposit

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Rare Metals 2006年第3期25卷 210-215页

作者： XU Tao CHANG Limin LIU Jianhua Department of Applied Technology Daqing Petroleum Institute Daqing 163318 China Analysis and Measure Center Jilin Normal University Siping 136000 China Key Laboratory of Metastable Materials Science and Technology Yanshan University Qinhuangdao 066004 China

The corrosion behavior of a CuCrNiAl alloy with NaCl deposit at 700 and 900℃ was studied by means of metalloscope, XRD, SEM/EDX, and thermogravimetric analysis. The results indicated that the corrosion of the CuCrNiAl alloy beneath the NaCl deposit is severe; the corrosion production is loose and easy to scale off; the Cr phase is easier to erode than the Cu phase, and the contents of Cu and Cr decrease when the content of Ni increases in the matrix of the alloy beneath the corrosion region. The effects of distortion on the corrosion of the CuCrNiAl alloy were discussed, and the acceleration mechanisms of NaCl on the corrosion were also discussed.

关键词： CuCrNiAl alloy corrosion NaCl high temperature

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Analysis of the Ultimate Bearing Capacity of Oil Field Drilling Masts

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petroleum Science 2005年第3期2卷 33-36页

作者： Han Dongying Zhou Guoqiang Li Zifeng College of Mechanical Engineering of Yanshan University ChinaQinhuangdao Hebei 066004 qinhuangdao division of daqing petroleum institute ChinaQinhuangdao Hebei 066004

In order to improve the safety of drilling operations, this paper presents a new method for forecasting the ultimate bearing capacity of oil field drilling masts. The method is based on a double nonlinear finite element theory and applies a referential stress method for measuring defects and defacements. The lab mast model was analyzed using the proposed method. The relative error, which was less than 5.0% between the forecast results and the destructive experiment values,verified the correctness of this method. It also forecasts the ultimate bearing capacity for a local drilling mast.

关键词： Drilling mast ultimate bearing capacity double nonlinearity referential stress method defects anddefacements

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A New Understanding of Channel Patterns and Facies Models of the Shallow Lake Delta Facies of Fuyu Oil Reservoir in Songliao Basin,China

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Acta Geologica Sinica(English Edition) 2008年第3期82卷 596-609页

作者： LI Yanping CHEN Shumin SONG Yongzhong ZHANG Erhua SHEN Jiagang ZHENG Jianbin College of Marine Geosciences Ocean University of China Qingdao Shandong 266100 qinhuangdao School of daqing petroleum College Qinhuangdao Hebei 066004 Exploration and Development institute ofdaqing Oilfield Co. Ltd. Daqing Heilongjiang 163712

In the Fuyu Reservoir of Songliao Basin, there occur a series of well-developed peculiar shallow lake delta facies, which can be divided to such three ones as the upper delta plain subfacies, the lower delta plain subfacies, and the delta front subfacies. Among them the upper delta plain subfacies mainly grows proximal distributary channels; the lower delta plain subfacies mainly grows distal ones. The entire Fuyu Reservoir has mainly developed 7 kinds of distributary channel patterns： proximal/ distal meandering type distributary channels, proximal/distal low-sinuosity type distributary channels, proximal/distal straight type distributary channels, and subaqueous distributary channels. Among these patterns, the proximal and distal meandering type distributary channels have bigger thickness of point bar and better sorting and low content of mud; moreover, they are the major reservoirs and occur in the bottom of Quan-4th member. The sandbars of the subaqueous distributary channels have higher mud content, and serve as the poorer reservoirs, and mainly occur in the top of Quan-4th member.

关键词： Fuyu Reservoir shallow lake delta lower delta plain proximal/distal distributary channels

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Formation and Growth of Granular Carbides in Multiple Alloying Wear Resistant Cast Iron Containing RE Through Hot Deformation

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Journal of Rare Earths 2005年第S1期23卷 493-496页

作者：于翠艳王丽敏刘建华陈华林红岩许涛 Department of Applied Technology Daqing Petroleum Institute Daqing 163318 China Department of Chemistry Normal College of Daqing Daqing 163712 China Key Laboratory of Metastable Materials Science and Technology Yanshan University Qinhuangdao 066004 China Zhejiang Medicine Co. Ltd. Xincang Pharmaceutical Factory Shaoxing 312500 China

The granular carbides formed from hot deformation in multiple alloying wear resistant cast iron were studied through the observation by means of optical microscope, SEM and TEM. The experimental results show that carbides with large size are formed from original short rhabdoid carbides existing in cast, those with small size directly nucleate in the matrix. Carbides with the size between the above are formed from precipitation induced by hot deformation. The bigger the deformation is, the larger the number of microsized granular carbides is. The mechanisms of nucleation and growth of granular carbides and the function of RE were discussed.

关键词： hot deformation multiple alloying wear resistant cast iron granular carbides rare earths

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Depositional features and sedimentary model of Buqu Stage in Mid-Jurassic in Qangtang Basin, Xizang (Tibet), China

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Chinese Journal of Oceanology and Limnology 2004年第4期22卷 356-364页

作者：王兴涛翟世奎柳彬德周书欣 institute of Marine Geoscience Ocean University of China Qingdao 266003 China qinhuangdao Branch Daqing Petroleum Institute Qinhuangdao 066004 China

The largest Mesozoic northward transgression in Qangtang Basin of Qinghai-Xizang (Tibet) Plateau occurred during the Buqu Stage, Middle Jurassic. Mainly filled with carbonate rocks, the whole basin is composed of transgression-regression sedimentary cycle. Field outcrops and indoor analysis revealed 8 types of sedimentary facies markers in this region. 4 types of sedimentary facies have been recognized: platform facies, platform marginal facies, foreslope facies and basin facies. Influenced by the northern Lazhuglung-Jinshajiang suture zone, central uplift region and southern Bangongco-Nujiang suture zone, these facies belts extended east-west. The sedimentary model was established based on observed depositional features. From their biological features and sedimentary characteristics, it is suggested that the paleoclimate was warm and humid at that time. The Buqu Formation is a promising target for oil and gas exploration in Shuanghu-Duoyong area in future.

关键词： Xizang(Tibet) Qangtang Basin Buqu Formation depositional features sedimentary model

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Risk assessment of fault reactivation considering the heterogeneity of friction strength in the BZ34-2 Oilfield,Huanghekou Sag,Bohai Bay Basin,China

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petroleum Science 2023年第5期20卷 2695-2708页

作者： Ye-Jun Jin Ling-Dong Meng Ding-You Lyu Xiao-Fei Fu Jiang-Bo Huang Si-Jia Cao Jian-Da Li School of Earth Sciences Northeast Petroleum UniversityDaqing 163318HeilongjiangChina Key Laboratory of Oil&Gas Reservoir and Underground Gas Storage Integrity Evaluation of Heilongjiang Province Northeast Petroleum UniversityDaqing 163318HeilongjiangChina Bohai Rim Energy Research institute Northeast Petroleum UniversityQinhuangdao066004HebeiChina CNOOC Tianjin Company Tianjin 300459China

The hazards of fault reactivation caused by fluid injection are a growing ***,traditional evaluation methods of fault stability are likely to underestimate the risk in fault segments with a high clay ***,an extended evaluation method of fault stability(ECPP)incorporating the heterogeneity in friction strength caused by variation in the clay content within the fault zone is established in this *** characterizing the current stress field of the BZ34-2 Oilfield in the Huanghekou Sag,Bohai Bay Basin,the reactivation potential of faults is evaluated using both traditional and ECPP *** evaluation of fault stability shows that all faults are stable in the present stress *** oriented ENE have a relatively high *** maximum sustainable fluid pressure Δp is approximately 8.8-8.9 MPa and 9.3-9.9 *** considering the heterogeneity in fault friction strength,the fault stability is clearly controlled by the clay content of the *** high-risk fault segments assessed using traditional methods are no longer obvious,which reflects the importance of incorporating friction strength heterogeneity in the process of fault ***,the results also show that most fault segments are activated when the fault zone is dominated by montmorillonite,reflecting the strong influence of clay mineral types on fault *** factors influencing the heterogeneity of fault friction strength are very complicated in actual ***,future work should focus on establishing a database through a large number of experiments and investigating the relationship between the friction coefficient and the main controlling factors.

关键词： Faultreactivation In-situ stress Strength heterogeneity of fault friction Huanghekou Sag

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