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petroleum geology features and research developments of hydrocarbon accumulation in deep petroliferous basins

petroleum Science 2015年第1期12卷 1-53页

作者： Xiong-Qi Pang Cheng-Zao Jia Wen-Yang Wang State Key Laboratory of petroleum Resources and Prospecting Basin and Reservoir research center China University of Petroleum Petro China Company Limited research Institute of petroleum Exploration and development

As petroleum exploration advances and as most of the oil-gas reservoirs in shallow layers have been explored, petroleum exploration starts to move toward deep basins, which has become an inevitable choice. In this paper, the petroleum geology features and research progress on oil-gas reservoirs in deep petroliferous basins across the world are characterized by using the latest results of worldwide deep petroleum exploration. research has demonstrated that the deep petroleum shows ten major geological features. （1） While oil-gas reservoirs have been discovered in many different types of deep petroliferous basins, most have been discovered in low heat flux deep basins. （2） Many types of petroliferous traps are developed in deep basins, and tight oil-gas reservoirs in deep basin traps are arousing increasing attention. （3） Deep petroleum normally has more natural gas than liquid oil, and the natural gas ratio increases with the burial depth. （4） The residual organic matter in deep source rocks reduces but the hydrocarbon expulsion rate and efficiency increase with the burial depth. （5） There are many types of rocks in deep hydrocarbon reservoirs, and most are clastic rocks and carbonates. （6） The age of deep hydrocarbon reservoirs is widely different, but those recently discovered are pre- dominantly Paleogene and Upper Paleozoic. （7） The porosity and permeability of deep hydrocarbon reservoirs differ widely, but they vary in a regular way with lithology and burial depth. （8） The temperatures of deep oil-gas reservoirs are widely different, but they typically vary with the burial depth and basin geothermal gradient. （9） The pressures of deep oil-gas reservoirs differ significantly, but they typically vary with burial depth, genesis, and evolu- tion period. （10） Deep oil-gas reservoirs may exist with or without a cap, and those without a cap are typically of unconventional genesis. Over the past decade, six major steps have been made in the understanding of deep hydroca

关键词： Petroliferous basin Deep petroleum geology features Hydrocarbon accumulation petroleum exploration petroleum resources

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Prediction and optimization of flue pressure in sintering process based on SHAP

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 346-359页

作者： Mingyu Wang Jue Tang Mansheng Chu Quan Shi Zhen Zhang School of Metallurgy Northeastern UniversityShenyang 110819China Liaoning Low-Carbon Steelmaking Technology Engineering research center Northeastern UniversityShenyang 110819China Engineering research center of Frontier Technologies for Low-Carbon Steelmaking(Ministry of Education) Shenyang 110819China

Sinter is the core raw material for blast *** pressure,which is an important state parameter,affects sinter *** this paper,flue pressure prediction and optimization were studied based on the shapley additive explanation(SHAP)to predict the flue pressure and take targeted adjustment ***,the sintering process data were collected and processed.A flue pressure prediction model was then constructed after comparing different feature selection methods and model algorithms using SHAP+extremely random-ized trees(ET).The prediction accuracy of the model within the error range of±0.25 kPa was 92.63%.SHAP analysis was employed to improve the interpretability of the prediction *** effects of various sintering operation parameters on flue pressure,the relation-ship between the numerical range of key operation parameters and flue pressure,the effect of operation parameter combinations on flue pressure,and the prediction process of the flue pressure prediction model on a single sample were analyzed.A flue pressure optimization module was also constructed and analyzed when the prediction satisfied the judgment *** operating parameter combination was then *** flue pressure was increased by 5.87%during the verification process,achieving a good optimization effect.

关键词： sintering process flue pressure shapley additive explanation prediction optimization

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Discussion on rheology in petroleum and nature gas teservoir stimulation

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Journal of Central South University 2008年第S1期15卷 362-368页

作者：卢拥军梁冲胥云陈彦东 research Institute of petroleum Exploration and development-Langfang

petroleum and nature gas not only are important resources,but also are important strategic materials of our *** methods the enhancing the producing degree of petroleum and natural gas reservoir,increasing single well production and extending the stimulation period of validity are important stratagem for petroleum and natural gas *** and acidizing are the main methods for stimulation as well as one of representative examples of rheology theory application in *** on analysis of low permeability reservoir characteristics,the fracturing and acidizing stimulation principles and main controlling factors were *** the mechanical characteristics,chemical reaction and rheological behavior in the stimulation process were *** research trends afterwards including the material and fluid rheology in oil and natural gas production process,the deep rock fracture initiation and extension rheology,and the fracturing and acidizing application rheology were also proposed in this paper.

关键词： fracturing fracturing fluids acid fracturing acid fluids low permeability petroleum rheology

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Metal-enhanced fluorescence of graphene oxide by palladium nanoparticles in the blue-green part of the spectrum

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Chinese Physics B 2016年第11期25卷 576-583页

作者： A Omidvar M R Rashidian Vaziri B Jaleh N Partovi Shabestari M Noroozi Department of Physics Bu-Ali Sina University Laser and Optics research School NSTRI Tehran Iran center for research and development of petroleum Technologies at Kermanshah Research Institute of Petroleum Industry (RIPI)

Graphene oxide（GO） has a wide fluorescence bandwidth,which makes it a prospective candidate for numerous *** many of these applications,the fluorescence yield of GO should be further *** sp2-hybridized carbons in GO confine the π-*** recombination of electron-hole pairs in such sp2 clusters is the source of fluorescence in this *** nanoparticles are good catalysts for sp2 bond *** report on the preparation of GO,palladium nanoparticles and their nanocomposites in two different *** is shown that palladium nanoparticles can considerably enhance the intrinsic fluorescence of GO in the blue-green part of the visible light *** enhancement has been attributed to the catalytic role of palladium nanoparticles in increasing the number of sp2 bonds of GO with the molecules of the surrounding *** is shown that palladium nanoparticles could be the nanoparticle of choice for fluorescence enhancement of GO because of their catalytic role in sp2 bond formation.

关键词： palladium formations considerably bonds Palladium attributed numerous Fluorescence visible bandwidth

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Progress in China's Unconventional Oil & Gas Exploration and development and Theoretical Technologies

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Acta Geologica Sinica(English Edition) 2015年第3期89卷 938-971页

作者： ZOU Caineng YANG Zhi ZHU Rukai ZHANG Guosheng HOU Lianhua WU Songtao TAO Shizhen YUAN Xuanjun DONG Dazhong WANG Yuman WANG Lan HUANG Jinliang WANG Shufang PetroChina research Institute of petroleum Exploration & development

The new century has witnessed a strategic breakthrough in unconventional oil ＆ *** accumulated in micro-/nano-scale pore throat shale systems has become an important domain that could replace current oil ＆ gas *** oil ＆ gas plays an increasingly important role in our energy *** gas,CBM,heavy oil and asphaltic sand have served as a key domain of exploration ＆ development,with tight oil becoming a ＇bright spot＇ domain and shale gas becoming a ＇hotspot＇ *** has made great breakthroughs in unconventional oil ＆ gas resources,such as tight gas,shale gas,tight oil and CBM,and great progress in oil shale,gas hydrate,heavy oil and oil *** has an estimated（223-263）×10~8t of unconventional oil resources and（890-1260）×l0^（12）m^3 of gas *** has made a breakthrough for progress in unconventional oil ＆ gas *** progress achieved in fine-grained sedimentary studies related to continental open lacustrine basin large-scale shallow-water delta sand bodies,lacustrine basin central sandy clastic flow sediments and marine-continental fine-grained sediments provide a theoretical basis for the formation and distribution of basin central reservoir *** breakthroughs have been made in unconventional reservoir geology in respect of research methodology ＆ technology,multi-scale data merging and physical simulation of formation *** characterization of unconventional reservoirs via multi-method and multi-scale becomes increasingly popular and facilitates the rapid development of unconventional oil ＆ gas geological theory,method and *** formation of innovative,continuous hydrocarbon accumulation theory,the establishment of the framework of the unconventional oil ＆ gas geological theory system,and the determination of the implications,geological feature,formation mechanism,distribution rule and core technology of unconventional oil＆ gas geological study lays a theoretical foundation for ext

关键词： Unconventional oil and gas Unconventional petroleum geology fine-grainedsedimentology unconventional reservoir geology "man-made reservoir" development micro-/nano- scalepore throat tight gas tight oil shale gas shale oil

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Depositional System of the Carboniferous Huanglong Formation,Eastern Sichuan Basin:Constraints from Sedimentology and Geochemistry

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Acta Geologica Sinica(English Edition) 2016年第5期90卷 1795-1808页

作者： WANG Kun HU Suyun LI Wei LIU Wei HUANG Qingyu MA Kui SHI Shuyuan research Institute of petroleum Exploration and development CNPC

Using analyses of the lithology,sequences,paleoenvironment,and tectonic setting,the depositional system of the Carboniferous Huanglong Formation in the eastern Sichuan Basin was *** lithological characteristics of the Lower Member,Middle Member,and Upper Member were analyzed and *** the use of carbon,oxygen,and strontium isotopes in the analysis,all of the geochemical data were tested for *** the basis of the Z values obtained from carbon and oxygen isotopes,the paleoenvironments of the three members were *** Member was dominantly an enclosed marine environment with intense evaporation and little freshwater input into the *** Member developed in a semi-enclosed to normal marine environment with many *** Member was formed in a normal marine *** east Sichuan Basin was enclosed by paleouplifts before the deposition of the Huanglong Formation,forming a relatively enclosed depositional *** developed in the Silurian strata that underlie the Carboniferous rocks;these paleogullies can be *** the basis of a comprehensive analysis,we propose that the Huanglong Formation developed in a platform *** microfacies were identified：supratidal flat,dolostone flat,grain shoal,and shelf *** high-permeability and high-porosity characteristics of the grain shoal microfacies are favorable for hydrocarbon accumulation,while the supratidal flat and shelf microfacies developed very few high-quality *** paleogullies,in which increased amounts of grain shoal microfacies developed,controlled the distribution of high-quality reservoirs.

关键词： eastern Sichuan Basin Huanglong Formation depositional system paleoenvironment paleogully reservoir quality

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Geochemical Characteristics of the Source Rocks in Mesozoic Yanchang Formation,Central Ordos Basin

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Journal of Earth Science 2013年第5期24卷 804-814页

作者：林森虎袁选俊陶士振杨智吴松涛 research Institute of petroleum Exploration & development PetroChina

The shale of Yanchang Formation in Upper Triassic is the most important source rock for the Mesozoic petroleum reserviors in Ordos Basin. Chang 7 and Chang 4＋5 members are the major source rock formation. Source rock samples, obtained from 22 cored wells in central Ordos Basin, were geochemically analyzed to determine the organic matter abundance, kerogen type and thermal maturity. Total organic carbon values ranged from 0.36% to 19.10%, 8.09% on average, in- dicating a good source rock potential. In this area, the shale is mature, as indicated by vitrinite re- flectance values. RockoEval data revealed that the samples are dominated by type II kerogen. Com- pare the Chang 7 and Chang 4＋5 members, which suggests that the Chang 7 shale has higher TOC, especially the highest lower Chang 7 members. The abundance of organic matter of Chang 4＋5 and Chang 7 members is both richest in southeast basin. The kerogen type of Chang 4＋5 and upper Chang 7 members is type II~, the counterpart of middle and lower Chang 7 member is type I. During the burial history, the total hydrocarbon-generating quantity of Chang 7 member is much more than that of Chang 4＋5 members.

关键词： hydrocarbon-generating potential geochemical characteristics of source rock Meso- zoic Yanchang Formation Ordos Basin.

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Geological Conditions and Prospect Forecast of Shale Gas Formation in Qiangtang Basin, Qinghai-Tibet Plateau

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Acta Geologica Sinica(English Edition) 2014年第2期88卷 598-619页

作者： YU Yuanjiang ZOU Caineng DONG Dazhong WANG Shejiao LI Jianzhong YANG Hua LI Denghua LI Xinjing WANG Yuman HUANG Jinliang PetroChina research Institute of petroleum Exploration and development

The presence of shale gas has been confirmed in almost every marine shale distribution area in North *** conditions of shale gas in China are the most favorable for marine,organic-rich shale as *** there has been little research focusing on shale gas in Qiangtang Basin,Qinghai-Tibet Plateau,where a lot of Mesozoic marine shale formations *** on the survey results of petroleum geology and comprehensive test analysis data for Qinghai-Tibet Plateau,for the first time,this paper discusses characteristics of sedimentary development,thickness distribution,geochemistry,reservoir and burial depth of organic-rich shale,and geological conditions for shale gas formation in Qiangtang *** are four sets of marine shale strata in Qiangtang Basin including Upper Triassic Xiaochaka Formation （T3x）,Middle Jurassic Buqu Formation （J2b）,Xiali Formation （J2x） and Upper Jurassic Suowa Formation （J3s）,the sedimentary types of which are mainly bathyal-basin facies,open platform-platform margin slope facies,lagoon and tidal-fiat facies,as well as delta *** comparing it with the indicators of gas shale in the main ***,it was found that the four marine shale formations in Qiangtang Basin constitute a multi-layer distribution of organic-rich shale,featuring a high degree of thickness and low abundance of organic matter,high thermal evolution maturity,many kinds of brittle minerals,an equivalent content of quartz and clay minerals,a high content of feldspar and low porosity,which provide basic conditions for an accumulation of shale gas *** Formation shale is widely distributed,with big thickness and the best gas generating *** is the main gas source *** Formation shale is of intermediate thickness and coverage area,with relatively good gas generating indicators and moderate gas formation *** Formation shale and Suowa Formation shale are of relatively large thickness,and covering a small area,with p

关键词： Shale gas marine shale geological characteristics geological conditions for gas formation resources prospect forecast Qiangtang Basin

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Influence of meandering river sandstone architecture on waterflooding mechanisms: a case study of the M-I layer in the Kumkol Oilfield, Kazakhstan

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petroleum Science 2014年第1期11卷 81-88页

作者： Wang Jincai Zhao Lun Zhang Xiangzhong Tian Zhongyuan Chen Xi He Ling PetroChina research Institute of petroleum Exploration & development

In order to explore the influence of sandstone architecture on waterflooding mechanisms using the architecture method,and taking as an example the M-I layer of the Kumkol oilfield in the South Turgay Basin,Kazakhstan,we portrayed the architecture features of different types of sandstones and quantitatively characterized heterogeneities in a single sand body in meandering river *** on the waterflooding characteristics of point bar sand and overbank sand according to waterflooded interpretation results in 367 wells and numerical simulation results of well groups,we finally analyzed the remaining oil potential of the meandering river sandstone and pointed out its development directions at the high water cut *** result shows that because lateral accretion shale beds are developed inside single sand bodies,the point bar sand is a semi-connected *** overbank sand is thin sandstone with poor connectivity,small area and fast lateral *** heterogeneity of the overbank sand is stronger than the point bar *** sandstone architectures control the waterflooding *** meandering river sandstones,the bottom of the point bar sand is strongly waterflooded,while the top of the point bar sand and most of the overbank sand are only weakly waterflooded or *** thickness percentage of unflooded zone and weakly waterflooded zone in point bar sand is 40％,and the remaining oil in its top part is the main direction for future development.

关键词： Meandering river point bar sand overbank sand architecture characteristics waterflooding characteristics

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Mass-transport Deposits of the Upper Cretaceous Qingshankou Formation, Songliao Terrestrial Basin, Northeast China: Depositional Characteristics, Recognition Criteria and External Geometry

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Acta Geologica Sinica(English Edition) 2014年第1期88卷 62-77页

作者： PAN Shuxin WEI Pingsheng WANG Tianqi LIU Caiyan CHEN Bintao LIANG Sujuan research Institute of petroleum Exploration & development–Northwest

Extensive mass transport deposits（MTDs）, which form a significant component of the stratigraphic record in ancient and modern deep water systems, mostly distributed in the continental margin of ocean basins worldwide. To date, no large-scale MTDs have been found in Chinese terrestrial basins. Based on integrated analysis of the seismic, drilling, core and logging data, this article report MTDs have been found in Songliao terrestrial basin（SLTB）, Northeast China. During the depositional period of the Upper Cretaceous Qingshankou Formation, slope break of lacustrine basins was an ideal discharge place for gravity depositions. Regional sedimentary study of MTDs reveals that Cretaceous-age MTDs in SLTB were deposited in slope-break environments by slide, slump and debris flow, and MTDs were mixed with little turbidite simultaneously. Besides the massive aspect, key features of MTDs are the common presence of deformational structures or softsedimentary deformation, floating shale clasts, boudins, microfaults, distortion beddings, rotated sand debris. Detailed mapping of two three-dimensional（3-D） seismic surveys acquired in Yingtai（YT） and Haituozi（HTZ） areas reveals that MTDs are characterized by chaotic, mounded, and transparent seismic reflection. Growth fault, slope gully and geomorphology of the slope break greatly influenced the sedimentary process and external geometry of MTDs, and as a consequence, MTDs in SLTB exhibit classic fan-like geometry and some special（non-fan-like） external geometry. Furthermore, fanlike MTDs can be divided into three subcategories, including isolated fan, mother-son fan and stacked fan. Non-fan-like MTDs can be divided into two subcategories, strip-like MTDs and faulted-pit MTDs. A new sedimentary model has been built for MTDs in SLTB. MTDs have become a new exploration and development target in the SLTB.

关键词： MTDs depositional characteristics recognition criteria external geometry Songliao Basin

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