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Chinese Journal Of Geochemistry 2009年第4期28卷 432-439页

作者： WANG Juan LI Xin china University of Petroleum Shandong Dongying 257061 China Geological Research Institute of shengli oilfield Company Limited SINOPEC Shandong Dongying 257015 China Geophysical Research Institute of shengli oilfield Company Limited SINOPEC Shandong Dongying 257022 China

The Wulong pluton was emplaced in the metamorphic complex of the Mesoproterozoic Foping Group, South Qinling. A few mafic enclaves which are rounded in shape with sharp boundaries with the host granites in the southern part of the pluton. Based on petrography, geochemistry and chronology data, it is indicated that the Wulong pluton shows some adakitic affinities with depletion in HREE (Yb=0.33–0.96 μg/g, Y=4.77–11.2 μg/g); enrichment in Sr (643–1115 μg/g) and Ba (775–1386 μg/g), high Sr/Y ratios (57.3–160) and Y/Yb ratios (11.0–14.3), and slightly negative Eu anomaly (δEu=0.70–0.83). These patterns suggest a feldspar-poor and garnet±amohibole-rich fractionation mineral assemblage. The mafic enclaves have high concentrations of Mg (MgO=4.15%–8.13%), Cr (14.8–371 μg/g), and Ni (20.0–224 μg/g), and high Nb/Ta ratios (15.42–21.9). It seems that the underplating mantle magma was responsible for the generation of the mafic magma. Companied with the results of investigations for the Qinling Orogenic Belt, it was found that partial melting of the thickened lower crust, which was triggered by the underplated mantle-derived magmas, had generated the felsic magma. The Wulong pluton provided evidence for a mixing and mingling process of two kinds of mamma. Its formation probably represents the oceanic slab breakoff during the late orogenic stage in the Qinling area.

关键词：二长花岗岩地球化学镁铁质南秦岭岩体飞地三叠纪成因

Differential Hydrocarbon Enrichment and its Main Controlling Factors in Depressions of the Bohai Bay Basin Differential Hydrocarbon Enrichment and its Main Controlling Factors in Depressions of the Bohai Bay Basin

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Acta Geologica Sinica(English Edition) 2017年第5期91卷 1855-1872页

作者： JIANG Youlu LIU Hua SONG Guoqi WANG Yongshi LIU Jingdong ZHAO Kai LYU Xueying School of Geosciences China University of Petroleum (East China)Qingdao 266580 Shandong China sinopec.shengli oilfield Company Dongying 257015 Shandong China

Significant differential hydrocarbon enrichment occurs in depressions in a petroliferous *** are multiple depressions in the Bohai Bay Basin, and each depression as a relatively independent unit of hydrocarbon generation, migration and accumulation, contains significantly different hydrocarbon generation conditions and enrichment degree. On the basis of previous documents and a large number of statistical data, this work comparatively analyzed the differential hydrocarbon enrichment and its major controlling factors in depressions of the Bohai Bay Basin. The results show that depressions in the Bohai Bay Basin have various hydrocarbon enrichment degrees, and can be categorized into four types, namely enormously oil-rich, oil-rich, oily and oil-poor depressions. In general, the enormously oil-rich and oil-rich depressions are distributed in the eastern part of the basin along the Tan-Lu and Lan-Liao faults, whereas depressions in the western part of the basin are poor in hydrocarbons. Moreover, the vertical distribution of hydrocarbons is also highly heterogeneous, with Pre-Paleogene strata rich in hydrocarbons in the northern and western depressions, Paleogene strata rich in hydrocarbons in the entire basin, and Neogene strata rich in hydrocarbons in the off-shore areas of the Bohai Bay Basin. From early depressions in onshore areas to the late depressions in offshore areas of the Bohai Bay Basin, the source rocks and source-reservoir-cap rock assemblages gradually become younger and shallower, and the hydrocarbon resource abundance gradually increases. Hydrocarbon supplying condition is the key factor constraining the hydrocarbon enrichment for different depressions,while the main source-reservoir-cap rock assemblage, sufficient hydrocarbons and the transportation capacity of faults control the vertical distribution of hydrocarbons. The main factors controlling hydrocarbon enrichment are different for different layers. The hydrocarbon supplying condition of

关键词： differential hydrocarbon enrichment hydrocarbon distribution hydrocarbon-rich depression fault transportation main controlling factors Bohai Bay Basin

Formation mechanism of carbonates in the lacustrine muddy shale and it implication for shale oil and gas: A case study of source rocks in Member 4 and Member 3 of Shahejie Formation, dongying.sag

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Petroleum Research 2018年第3期3卷 248-258页

作者： Yong Wang Huiming Liu Guoqi Song Xuefeng Hao Deshun Zhu Deyan Zhu Exploration and Development Institute Sinopec Shengli Oilfield CompanyShandong 257015China sinopec.shengli oilfield Company Shandong 257001China

Through analysis of microscopic characteristics,mineral components,elements and isotopes,the genetic mechanism of carbonates in the deep lacustrine source rocks in the upper submember of Member 4 and lower submember of Member 3 of Shahejie Formation in dongying.sag,is well *** results show that four types of carbonates in the deep lake,i.e.,lenticular coarse crystalline carbonate,lamellar micro-fine crystalline carbonate,lamellar cryptocrystalline carbonate and massive cryptocrystalline *** which,the lenticular coarse crystalline carbonate is formed by diagenetic *** the lamellar micro-fine crystalline carbonate and the lamellar cryptocrystalline carbonate,through the alga photosynthesis,the carbon dioxide(CO_(2))is constantly extracted from water,thus the concentration of CO_(3)^(-2) ion in water increases,and then the CO_(3)^(-2) ion reacts with Ca2+ ion in lake water surface to form the carbonates;the saline water environment is favorable for preservation of carbonate particles which mostly occur in lamellar micro-fine crystalline;in the brackish water environment,the water is deep,and the carbonate crystalline beneath the carbonate compensation depth surface is usually is dissolved,and most of lamellar cryptocrystalline are *** massive cryptocrystalline carbonate is formed by the sedimentary carbonate which transport from shallow water to deep water by gravity *** some extent,the carbonates control reservoir property and compressibility of muddy shale in the upper submember of Member 4 and lower submember of Member 3 of Shahejie Formation in dongying.sag,and provide important information for reconstruction of sedimentary environment of the ancient lake.

关键词： Formation mechanism Lacustrine facies Carbonate Muddy shale Shahejie formation dongying.sag

Dynamic interwell connectivity analysis of multi-layer waterflooding reservoirs based on an improved graph neural network

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Petroleum Science 2024年第2期21卷 1062-1080页

作者： Zhao-Qin Huang Zhao-Xu Wang Hui-Fang Hu Shi-Ming Zhang Yong-Xing Liang Qi Guo Jun Yao School of Petroleum Engineering China University of Petroleum(East China)Qingdao266580ShandongChina Exploration and Development Research Institute Shengli OilfieldSINOPECDongying257015ShandongChina

The analysis of interwell connectivity plays an important role in the formulation of oilfield development plans and the description of residual oil distribution. In fact, sandstone reservoirs in china's onshore oilfields generally have the characteristics of thin and many layers, so multi-layer joint production is usually adopted. It remains a challenge to ensure the accuracy of splitting and dynamic connectivity in each layer of the injection-production wells with limited field data. The three-dimensional well pattern of multi-layer reservoir and the relationship between injection-production wells can be equivalent to a directional heterogeneous graph. In this paper, an improved graph neural network is proposed to construct an interacting process mimics the real interwell flow regularity. In detail, this method is used to split injection and production rates by combining permeability, porosity and effective thickness, and to invert the dynamic connectivity in each layer of the injection-production wells by attention *** on the material balance and physical information, the overall connectivity from the injection wells,through the water injection layers to the production layers and the output of final production wells is established. Meanwhile, the change of well pattern caused by perforation, plugging and switching of wells at different times is achieved by updated graph structure in spatial and temporal ways. The effectiveness of the method is verified by a combination of reservoir numerical simulation examples and field example. The method corresponds to the actual situation of the reservoir, has wide adaptability and low cost, has good practical value, and provides a reference for adjusting the injection-production relationship of the reservoir and the development of the remaining oil.

关键词： Graph neural network Dynamic interwell connectivity Production-injection splitting Attention mechanism Multi-layer reservoir

Exploration progress of the Paleogene in Jiyang Depression,Bohai Bay Basin

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Energy Geoscience 2023年第1期4卷 42-50页

作者： Lichi Ma Mingshui Song Yongshi Wang Yanguang Wang Huimin Liu sinopec.shengli oilfield Branch Company DongyingShandong257015China Petroleum Exploration and Production Research Institute SINOPECBeijing102206China

With increased exploration in the faulted basins of eastern china,petroleum exploration in this region has been challenged by unclear remaining petroleum resources distribution,complex reservoir and hydrocarbon enrichment patterns,and lacking of suitable exploration *** at resolving these problems,studies on source rocks,reservoirs,hydrocarbon accumulation and geophysical prospection were carried out by laboratory analysis,reservoir anatomy,and seismic analysis.A highlyefficient hydrocarbon generation/expulsion model of source rocks in saline environment was established,which aided in the discovery of a new set of source rocks in the Jiyang *** study also reveals the formation process of high-quality reservoir by alternating acid and alkaline fluids during deposition and diagenesis,and pattern of secondary pores development in deep clastic *** the fine anatomy of the oil reservoirs,an orderly distribution pattern of the oil reservoirs is established,and the potential exploration targets in the undrilled area are *** addition,single-point highdensity seismic acquisition and high-resolution imaging technologies are developed,enabling fine and efficient exploration in areas with high exploration *** research result plays a leading and demonstrative role in the fine and efficient exploration of faulted basins in eastern china.

关键词： Hydrocarbon generation/expulsion model Saline environment Acid and alkaline fluids Hydrocarbon accumulation model Faulted basin

Quantitative prediction of mixed-source crude oils and its significance for understanding oil accumulation in subtle pools in the dongying.Depression,Bohai Bay Basin

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Petroleum Science 2008年第3期5卷 203-211页

作者： Li Sumei Liu Keyu Pang Xiongqi Li Maowen Jiang Zhenxue Qiu Guiqiang Gao Yongjin Key Laboratory for Hydrocarbon Accumulation Mechanism of the Ministry of Education. Basin ＆ Reservoir Research Center. china University of Petroleum. Beijing 102249 CSIRO Petroleum. P.O. Box 1130. Bentley WA 6102. Australia Geological Survey of Canada. 3303-33 Street NW Calgary. Alberta T2L 2A7. Canada shengli oilfield conapany. sinopec. dongying. shandong 257015. china

Conventional geochemical approaches were utilized in the quantitative prediction of the proportions of mixed-source crude oils derived from the Es3 and ES4 members of the Paleogene Shahejie Formation. The mixed-source oils are accumulated in the middle interval of the Es3 member （Es3 M） in the Niuzhuang Sag, which is one of the sags where subtle traps are primarily of lenticular basin-floor turbidite sands within mudstones mostly developed in the dongying.Depression, Bohai Bay Basin. The result showed that about 18-92% of the mixed-source oils were derived from the Es4 source rocks with an average of 55-60%）. Reservoirs associated with deep faults appear to have much more Es4 genetic affinity oils. A high proportion of the Es4-derived oils discovered in the Es3 M subtle lithological traps in the Niuzhuang Sag have long migration distances. This suggests that surrounding source rocks might not necessarily control the hydrocarbon supply for subtle traps. Subtle migration pathway may play an important role in the vertical oil migration. The traditional concept of hydrocarbons accumulation in these tenticular turbidite sandstone traps within a short migration distance from the surrounding source rocks is not supported by this study. The present result is also consistent with our previous findings that immature oils in the Bamianhe oilfield in the south slope of the Niuzhuang Sag were actually mixed-source oils mostly sourced from the Es4 in the depocenter of the Niuzhuang Sag, and the petroleum potential of the ES4 member in the dongying.Depression should therefore be re-evaluated.

关键词： Niuzhuang Sag lithological oil pool. mixed-source oil quantitative prediction

Simulation of Oil-Water Flow in a Shale Reservoir Using a Radial Basis Function

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Fluid Dynamics & Materials Processing 2022年第6期18卷 1795-1804页

作者： Zenglin Wang Liaoyuan Zhang Anhai Zhong Ran Ding Mingjing Lu shengli oilfield SinopecDongying257001China Petroleum Engineering Technology Research Institute of shengli oilfield SinopecDongying257067China Postdoctoral Scientific Research Working Station of shengli oilfield SinopecDongying257067China

Due to the difficulties associated with preprocessing activities and poor grid convergence when simulating shale reservoirs in the context of traditional grid methods,in this study an innovative two-phase oil-water seepage model is *** modes is based on the radial basis meshless approach and is used to determine the pressure and water saturation in a sample ***-dimensional examples demonstrate that,when compared to the finite difference method,the radial basis function method produces less errors and is more accurate in predicting daily oil *** radial basis function and finite difference methods provide errors of 5.78 percent and 7.5 percent,respectively,when estimating the daily oil production data for a sample well.A sensitivity analysis of the key parameters that affect the radial basis function’s computation outcomes is also presented.

关键词： Radial basis function reservoir numerical simulation meshless method oil-water two-phase flow

Simulation of Oil-Water Flow in Shale Oil Reservoirs Based on Smooth Particle Hydrodynamics

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Fluid Dynamics & Materials Processing 2022年第4期18卷 1089-1097页

作者： Qin Qian Mingjing Lu Feng Wang Aishan Li Liaoyuan Zhang Petroleum Engineering Technology Research Institute of shengli oilfield SINOPECDongying257067China Postdoctoral Scientific Research Working Station of shengli oilfield SINOPECDongying257067China shengli oilfield SINOPECDongying257001China

A Smooth Particle Hydrodynamics(SPH)method is employed to simulate the two-phase flow of oil and water in a *** is shown that,in comparison to the classical finite difference approach,this method is more stable and effective at capturing the complex evolution of this category of two-phase *** influence of several smooth functions is explored and it is concluded that the Gaussian function is the best *** 200 days,the block water cutoff for the Gaussian function is 0.3,whereas the other functions have a block water cutoff of *** effect of various injection ratios on real reservoir production is *** 14 and 8 m^(3)/day is employed,the water breakthrough time is 130 and 170 days,respectively,and the block produces 9246 m^(3) and 6338 m^(3) of oil cumulatively over 400 days.

关键词： SPH oil-water two-phase flow smooth function flow simulation

Simulation of Gas-Water Two-Phase Flow in Tight Gas Reservoirs Considering the Gas Slip Effect

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Fluid Dynamics & Materials Processing 2023年第5期19卷 1269-1281页

作者： Mingjing Lu Zenglin Wang Aishan Li Liaoyuan Zhang Bintao Zheng Zilin Zhang Petroleum Engineering Technology Research Institute of shengli oilfield SinopecDongying257067China Postdoctoral Scientific Research Working Station of shengli oilfield SinopecDongying257067China shengli oilfield SinopecDongying257067China

A mathematical model for the gas-water two-phase flow in tight gas reservoirs is *** model can account for the gas slip effect,stress sensitivity,and high-speed non-Darcy *** related equations are solved in the framework of a finite element *** results are validated against those obtained by using the commercial software CMG(Computer Modeling Group software for advanced recovery process simulation).It is shown that the proposed method is *** can capture the fracture rejection characteristics of tight gas reservoirs better than the CMG.A sensitivity analysis of various control factors(initial water saturation,reservoir parameters,and fracturing parameters)affecting the production in tight gas wells is conducted ***,a series of theoretical arguments are provided for a rational and effective development/exploitation of tight sandstone gas reservoirs.

关键词： Tight gas reservoir gas-water two-phase flow numerical simulation fractured horizontal well gas slip effect

Improvements to the fuzzy mathematics comprehensive quantitative method for evaluating fault sealing

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Petroleum Science 2017年第2期14卷 276-285页

作者： Da-Wei Dong Ji-Yan Li Yong-Hong Yang Xiao-Lei Wang Jian Liu shengli College of china University of Petroleum Dongying 257061 Shandong China Research Institute of Petroleum Exploration and Development Shengli Oilfield Company Dongying 257000 Shandong China Working Stations for Post Doctors Dongying 257000 Shandong China Oil Production Plant of Dongxing Shengli Oilfield Company Sinopec Dongying 257061 Shandong China

Fuzzy mathematics is an important means to quantitatively evaluate the properties of fault sealing in petroleum *** accurately study fault sealing,the comprehensive quantitative evaluation method of fuzzy mathematics is improved based on a previous ***,the single-factor membership degree is determined using the dynamic clustering method,then a single-factor evaluation matrix is constructed using a continuous grading function,and finally,the probability distribution of the evaluation grade in a fuzzy evaluation matrix is *** this study,taking the F1 fault located in the northeastern Chepaizi Bulge as an example,the sealing properties of faults in different strata are quantitatively evaluated using both an improved and an un-improved comprehensive fuzzy mathematics quantitative evaluation *** on current oil and gas distribution,it is found that our evaluation results before and after improvement are significantly *** faults in＂best＂and＂poorest＂intervals,our evaluation results are consistent with oil and gas ***,for the faults in＂good＂or＂poor＂intervals,our evaluation is not completelyconsistent with oil and gas *** improved evaluation results reflect the overall and local sealing properties of target zones and embody the nonuniformity of fault sealing,indicating the improved method is more suitable for evaluating fault sealing under complicated conditions.

关键词： Fault sealing property Fuzzy mathematics Dynamic clustering method Quantitative study