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Provenance Variability of the Triassic Strata in the TurpanHami Basin: Detrital Zircon Record of Indosinian Tectonic Reactivation in the Eastern Tianshan

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Acta Geologica Sinica(English Edition) 2019年第6期93卷 1850-1868页

作者： ZHANG Shaohua LIU Chiyang BAI Jianke WANG Jianqiang MA Ming GUAN Yuzhao PENG Heng Shaanxi Key Laboratory of petroleum Accumulation Geology Xi’an Shiyou UniversityXi’an 710065China school of Earth Sciences and engineering Xi’an Shiyou UniversityXi’an 710065China State Key Laboratory of Continental Dynamics Department of GeologyNorthwest UniversityXi’an 710069China Research Center of Orogenic Geology Xi’an Center of Geological SurveyChina Geological SurveyXi’an 710054China

The Triassic strata in the Turpan-Hami Basin potentially chronicled the missing sedimentary record of Indosinian tectonic evolution in the Eastern *** this study,we conducted detrital zircon U-Pb geochronological analyses on subsurface Triassic samples collected from the Turpan-Hami Basin to unravel sedimentary response of Indosinian tectonic reactivation and its *** detrital zircon age spectra of the Triassic samples are quite different,reflecting significant provenance *** zircon grains in the Lower Triassic sample were mainly from the Central Tianshan,while the Jueluotag acted as a minor *** contrast,the Late Paleozoic rocks in Jueluotag act as the main provenance for the Middle-Upper Triassic samples,while the Central Tianshan acted as a minor ***,zircon grains in the Middle Triassic sample were mainly from the Permian rocks in Jueluotag,while Indosinian strike-slipdriven rapid exhumation brought deeper Carboniferous rocks of Jueluotag as an important age population for the Upper Triassic *** inter-sample variability of age spectra of the Triassic samples provides sedimentary evidence for Indosinian tectonic reactivation in the Eastern Tianshan and its periphery,which could be attributed to differential exhumation of different sources driven by coeval strike-slip tectonics along deep *** Indosinian tectonic behavior in the Eastern Tianshan,which is characterized by partial melting of the pre-thickened crust and strike-slip deformation,acted as a far-field respond to the coeval continental accretion occurring along the southern Eurasian ***,our new detrital zircon data,together with previously published data in the Turpan-Hami Basin,demonstrate that there are significant changes in source-to-sink system from the Permian to the Triassic,suggesting that the Permian-Triassic unconformity in the Eastern Tianshan and its periphery was generated by Late Permian-Early Triassic tec

关键词： detrital zircon geochronology provenance Indosinian tectonic reactivation Turpan-Hami Basin Tianshan

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Data-Driven Model Falsification and Uncertainty Quantification for Fractured Reservoirs

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engineering 2022年第11期18卷 116-128页

作者： Junling Fang Bin Gong Jef Caers school of Earth Resources China University of GeosciencesWuhan 430074China Key Laboratory of Tectonics and petroleum Resources of the Ministry of Education Wuhan 430074China Department of geological Sciences Stanford UniversityStanford 94305USA

Many properties of natural fractures are uncertain,such as their spatial distribution,petrophysical properties,and fluid flow *** theorem provides a framework to quantify the uncertainty in geological modeling and flow simulation,and hence to support reservoir performance *** application of Bayesian methods to fractured reservoirs has mostly been limited to synthetic *** field applications,however,one of the main problems is that the Bayesian prior is falsified,because it fails to predict past reservoir production *** this paper,we show how a global sensitivity analysis(GSA)can be used to identify why the prior is *** then employ an approximate Bayesian computation(ABC)method combined with a tree-based surrogate model to match the production *** apply these two approaches to a complex fractured oil and gas reservoir where all uncertainties are jointly considered,including the petrophysical properties,rock physics properties,fluid properties,discrete fracture parameters,and dynamics of pressure and *** successfully identify several reasons for the *** results show that the methods we propose are effective in quantifying uncertainty in the modeling and flow simulation of a fractured *** uncertainties of key parameters,such as fracture aperture and fault conductivity,are reduced.

关键词： Bayesian evidential learning Falsification Fractured reservoir Random forest Approximate Bayesian computation

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Quaternary Intrusions from the Zhongjiannan Basin,South China Sea:Their Relationship with the Hainan Mantle Plume and Influence on Hydrocarbon Reservoirs

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Acta Geologica Sinica(English Edition) 2023年第1期97卷 376-392页

作者： HE Yanxin LIU Jianping WANG Lei TIAN Wei Key Laboratory of Orogenic Belts and Crustal Evolution MOESchool of Earth and Space SciencesPeking UniversityBeijing 100871China school of petroleum engineering Chongqing University of Science and TechnologyChongqing 401331China Guangzhou Marine geological Survey Ministry of Natural ResourcesGuangzhou 510760China school of Marine Sciences Sun Yat-sen UniversityZhuhai 519000China

The transportation of magma in sedimentary basins often occurs through extensive dyke-sill *** role of sills on the plumbing system in rifted margins and the impact of sills on hydrocarbon reservoirs of prospective sedimentary basins has long been an area of great industrial interest and scientific *** on 2D seismic reflection,we present data on how the sills emplaced to form a magmatic plumbing system of the volcanic system for the Zhongjiannan Basin(ZJNB).The results show that sixty-nine sills and fourteen forced folds have been *** distribution and geometry of the sills suggest that magma flowed from west to east and then ascended to near the *** onlap relationship of the forced folds indicates that the timing of magmatic activities can be constrained at ca.0.2 *** spatial and temporal occurrences of intrusions imply that the strong post-rift magmatism in ZJNB was associated with the Hainan mantle plume arising from the core-mantle ***,these forced folds could produce several types of hydrocarbon traps,due to accommodation through bending and uplift of the overlying rock and free surface,but it is critical to evaluate the effect of such emplacement when setting exploration targets.

关键词： sill intrusions forced fold petroleum traps Hainan mantle plume Zhongjiannan basin

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High-resolution coupling of stratigraphic'sweet-spot'lithofacies and petrophysical properties:A multiscale study of Ordovician Goldwyer Formation,Western Australia

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petroleum Science 2023年第3期20卷 1312-1326页

作者： Yu-jie Yuan Reza Rezaee Jian-Wei Gu Song-Tao Wu Emad A.Al-Khdheeawi Jun Wang Bin Pan school of Earth Sciences Yunnan UniversityKunmingYunnan650500China Western Australian school of Mines:Minerals Energy and Chemical EngineeringCurtin UniversityPerthWestern AustraliaAustralia school of petroleum engineering China University of Petroleum(East China)QingdaoShandong266580China Research Institute of petroleum Exploration and Development CNPCBeijing100083China National Energy of Tight Oil and Gas R&D Center Bejing100083China petroleum Technology Department University of Technology-IraqBaghdad10066Iraq school of Civil and Resource engineering University of Science and Technology BeijingNo.30Xueyuan RoadBeijing10083China State Key Laboratory of Coal Mine Disaster Dynamics and Control Chongqing UniversityChongqing400044China

The identification of stratigraphic'sweet-spot'interval is significant in oil and gas formation ***,formation evaluation in macroscopic-scale merely provides low resolution and limited infor-mation,thus may lead to uncertainties in resource *** accurately identify the'sweet-spot'intervals amongst heterogeneous lithofacies,we conducted a very high-resolution and quantitative analysis from in-situ macroscopic scale to laboratory microscopic scale on the Goldwyer formation of Canning Basin,Western *** comprehensive advanced well logging and slim-compact micro imager(SCMI)technologies were synthetically applied in couple with the laboratory nanoscaled *** results unveiled an extraordinarily large lithofacies heterogeneity between different rock intervals,with distinguished features shown in Goldwyer Ⅰ,Ⅱ,and Ⅲ *** most favorable lithofacies is recognized as the laminated argillaceous thermally-matured organic matter(OM)-rich mudstone,which is widely developed in Goldwyer Ⅲ as the major attributor to'sweet-spot'*** Ⅱ is exclusively characterized by thick mudstone intervals(94.4%),interbedded with thin calcareous mudstones(5.5%),corresponding to a depositional environment of low-energy distal section of the outer ramp ***,the most favorable lithofacies in'sweet-spot'intervals develop numerous OM-/mineral nanopores for hydrocarbon ***-rich lithofacies develops abundant inter-particle pores from 2 to 17 nm that mainly contribute to pore volume for free gas storage ***-rich lithofacies with higher maturity have OM-pores with good connectivity,bearing large specific surface area that is beneficial for adsorbed gas capacity.

关键词： Shale Nanopore structure Pore characterization Lithofacies

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A new framework for selection of representative samples for special core analysis

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petroleum Research 2020年第3期5卷 210-226页

作者： Abouzar Mirzaei-Paiaman Seyed Reza Asadolahpour Hadi Saboorian-Jooybari Zhangxin Chen Mehdi Ostadhassan National Iranian South Oil Company(NISOC) Department of Petroleum EngineeringAhvazIran Now at State University of Campinas(UNICAMP) CampinasSPBrazil Department of Chemical and petroleum engineering Schulich School of EngineeringUniversity of CalgaryCanada Key Laboratory of Continental Shale Hydrocarbon Accumulation and Efficient Development Ministry of EducationNortheast Petroleum University

Special core analysis(SCAL)measurements play a noteworthy role in reservoir *** to the time-consuming and costly character of these measurements,routine core analysis(RCAL)data should be inspected thoroughly to select a representative subset of samples for *** are no comprehensive guidelines on how representative samples should be *** this study,a new framework is presented for selection of representative samples for *** foundation of this framework is using methods of PSRTI,FZI*(FZI-star)and TEM-function for the early estimation of petrophysical static,dynamic,and pseudo-static rock types at RCAL *** global hydraulic element(GHE)approach is benefitted and a FZI*-based GHE method(i.e.,GHE*)is presented for partitioning *** framework takes into consideration different laboratory,reservoir engineering,geological,petrophysical and statistical factors.A carbonate reservoir case is presented to support our *** also show that the current forms of Lorenz and Stratigraphic Modified Lorenz Plots in reservoir engineering are not appropriate,and present new forms of them.

关键词： RCAL SCAL Sample selection Rock typing TEM-Function

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Calculation model for water influx and controlled reserves for CBM wells with high water yield

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petroleum Research 2018年第3期3卷 288-292页

作者： Qing Feng Han Jia Zijun Huang Miao Tian Jingsong Li Xiaonan Li Oilfield Production Optimization Institution China Oilfield Services LimitedTianjin300450China school of petroleum engineering China University of Petroleum(East China)Qingdao266580China

Compared with conventional gas reservoir,percolation mechanism of coalbed methane(CBM)is completely different,it is remarkably affected by adsorption/desorption performance,pressure variation and coalbed *** it is difficult to calculate the controlled reserves of CBM ***,the connection of edge-bottom water or interbedded water by fractures or faults may largely increase the water yield and drainage period,leading to obvious water invasion in some CBM *** are few literature about the predicted production for CBM wells with high water *** on the unconventional CBM reservoir,methods of pseudo geological reserves and production index curves are adopted to establish the calculation model of water influx and controlled *** further confirms that the calculation model is successfully applicated on the CBM wells at the middle part of Qinshui Basin in China.

关键词： CBM well High water yield Water influx Controlled reserves Calculation model

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A method for predicting the probability of formation of complex hydraulic fracture networks in shale reservoirs: development and application

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Frontiers of Earth Science 2023年第3期17卷 679-690页

作者： Xiaona ZHANG Yanbin YAO Yongshang KANG school of Energy Resource China University of GeosciencesBeijing 100083China Bejing Key Laboratory of Unconventional Natural Gas geological Evaluation and Development engineering China University of GeosciencesBeijing 100083China Frontiers Science Center for Deep-time Digital Earth China University of GeosciencesBeijing 100083China College of Geosciences China University of Petroleum(Beijing)Beijing 102249China State Key Laboratory of petroleum Resources and Prospecting China University of Petroleum(Beijing)Beijing 102249China

Shales can form a complex fracture network during hydraulic fracturing, which greatly increases the stimulated reservoir volume (SRV) and thus significantly increases oil or gas production. It is therefore important to accurately predict the probability of formation of the hydraulic fracture network for shale gas exploration and exploitation. Conventional discriminant criteria are presented as the relationship curves of stress difference vs. intersection angle. However, these methods are inadequate for application in the field. In this study, an effective and quantitative prediction method relating to the probability of complex fracture network formation is proposed. First, a discriminant criterion of fracture network was derived. Secondly, Monte Carlo simulation was applied to calculate the probability of the formation of the complex fracture network. Then, the method was validated by applying it to individual wells of two active shale gas blocks in the Sichuan Basin, China. Results show that the probabilities of fracture network are 0.98 for well JY1 and 0.26 for well W204, which is consistent with the micro-seismic hydraulic fracturing monitoring and actual gas production. Finally, the method was further extended to apply for the regional scale of the Sichuan Basin, where the general probabilities of fracture network formation are 0.32–1 and 0.74–1 for Weiyuan and Jiaoshiba blocks, respectively. The Jiaoshiba block has, therefore, an overall higher probability for formation of fracture network than the Weiyuan block. The proposed method has the potential in further application to evaluation and prediction of hydraulic fracturing operations in shale reservoirs.

关键词： shale gas complex fracture network shale reservoir Monte Carlo simulation Sichuan Basin

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A sand-production control system for gas production from clayey silt hydrate reservoirs

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China Geology 2019年第2期2卷 121-132页

作者： Yan-long Li Neng-you Wu Fu-long Ning Gao-wei Hu Chang-ling Liu Chang-yin Dong Jing-an Lu Key Laboratory for Gas Hydrate of Ministry of Natural Resources China Geological SurveyMinistry of Natural ResourcesQingdao Institute of Marine GeologyQingdao 266071China Laboratory for Marine Mineral Resources Qingdao National Laboratory for Marine Science and TechnologyQingdao 266071China Faculty of engineering China University of GeosciencesWuhan 430074China school of petroleum engineering China University of PetroleumQingdao 266580China Guangzhou Marine geological Survey China Geological SurveyMinistry of Natural ResourcesGuangzhou 510075China

Sand production is a crucial problem during the process of extracting natural gas from hydrate reservoirs. To deal with sand-production problems systematically, a sand-production control system (SCS) is first proposed in this paper, specialized for pore-distributed clayey silt hydrate reservoirs. Secondly, a nodal system analysis method (NSAM) is applied to analyze the sand migration process during hydrate exploitation. The SCS is divided into three sub-systems, according to different sand migration mechanisms, and three key scientific problems and advances in SCS research in China geological Survey are reviewed and analyzed. The maximum formation sanding rate, proper sand-control gravel size, and borehole blockage risk position were provided for clayey hydrate exploitation wells based on the SCS analysis. The SCS sub-systems are closely connected via bilateral coupling, and coordination of the subsystems is the basis of maintaining formation stability and prolonging the gas production cycle. Therefore, contradictory mitigation measures between sand production and operational systems should be considered preferentially. Some novel and efficient hydrate exploitation methods are needed to completely solve the contradictions caused by sand production.

关键词： Natural gas hydrate Hydrate exploitation Sand-production management Sand production Sand control Nodal system analysis

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A review of CO2 storage in geological formations emphasizing modeling,monitoring and capacity estimation approaches

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petroleum Science 2019年第5期16卷 1028-1063页

作者： Temitope Ajayi Jorge Salgado Gomes Achinta Bera Department of petroleum engineering Khalifa University of Science and TechnologySas Al Nakhl CampusP.O.Box 2533Abu DhabiUAE Drilling Cementingand Stimulation Research CenterSchool of Petroleum TechnologyPandit Deendayal Petroleum UniversityRaisanGandhinagarGujarat 382007India

The merits of CO2 capture and storage to the environmental stability of our world should not be underestimated as emissions of greenhouse gases cause serious *** represents the only technology that might rid our atmosphere of the main anthropogenic gas while allowing for the continuous use of the fossil fuels which still power today’s *** storage of CO2 involves the injection of CO2 into suitable geological formations and the monitoring of the injected plume over time,to ensure *** the last two or three decades,attention has been paid to technology developments of carbon capture and ***,it is high time to look at the research done so *** this regard,a high-level review article is required to provide an overview of the status of carbon capture and sequestration *** article presents a review of CO2 storage technologies which includes a background of essential concepts in storage,the physical processes involved,modeling procedures and simulators used,capacity estimation,measuring monitoring and verification techniques,risks and challenges involved and field-/pilot-scale *** is expected that the present review paper will help the researchers to gain a quick knowledge of CO2 sequestration for future research in this field.

关键词： CO2 storage geological formation Modeling for CO2 storage Mechanism of CO2 storage CO2 storage projects

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Deep Geothermal: The ‘Moon Landing' Mission in the Unconventional Energy and Minerals Space

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Journal of Earth Science 2015年第1期26卷 2-10页

作者： Klaus Regenauer-Lieb Andrew Bunger Hui Tong Chua Arcady Dyskin Florian Fusseis Oliver Gaede Rob Jeffrey Ali Karrech Thomas Kohl Jie Liu Vladimir Lyakhovsky Elena Pasternak Robert Podgorney Thomas Poulet Sheik Rahman Christoph Schrank Mike Trefry Manolis Veveakis Bisheng Wu David A.Yuen Florian Wellmann Xi Zhang school of petroleum engineering University of New South WalesSydney NSW 2052Australia Earth Science and Resource engineering CSIROKensington WA 6151Australia school of Earth and Environment The University of Western AustraliaPerth WA 6000Australia Department of Civil and Environmental engineering & Department of Chemical and petroleum engineering University of PittsburghPittsburghPennsylvaniaUSA school of Geosciences University of EdinburghEdinburghUK Science and engineering Faculty School of EarthEnvironmental and Biological SciencesEarth SystemsQueensland University of TechnologyBrisbaneAustralia Karlsruhe Institute of Technology KarlsruheGerman school of Earth Science and geological engineering Sun Yat-Sen University geological Survey of Israel Jerusalem 95501Israel Idaho National Laboratory Idaho FallsUSA Land and Water CSIROFloreat Park WA 6014Australia school of Environmental Studies China University of Geosciences Department of Earth Sciences and Minnesota Supercomputing Institute University of MinnesotaMinneapolis MN 55455USA Aachen Institute for Advanced Study in Computational engineering Science (AICES) RWTH Aachen University52062 AachenGermany

Deep geothermal from the hot crystalline basement has remained an unsolved frontier for the geothermal industry for the past 30 years. This poses the challenge for developing a new unconventional geomechanics approach to stimulate such reservoirs. While a number of new unconventional brittle techniques are still available to improve stimulation on short time scales, the astonishing richness of failure modes of longer time scales in hot rocks has so far been overlooked. These failure modes represent a series of microscopic processes： brittle microfracturing prevails at low temperatures and fairly high deviatoric stresses, while upon increasing temperature and decreasing applied stress or longer time scales, the failure modes switch to transgranular and intergranular creep fractures. Accordingly, fluids play an active role and create their own pathways through facilitating shear localization by a process of time-dependent dissolution and precipitation creep, rather than being a passive constituent by simply following brittle fractures that are generated inside a shear zone caused by other localization mechanisms. We lay out a new theoretical approach for the design of new strategies to utilize, enhance and maintain the natural permeability in the deeper and hotter domain of geothermal reservoirs. The advantage of the approach is that, rather than engineering an entirely new EGS reservoir, we acknowledge a suite of creep-assisted geological processes that are driven by the current tectonic stress field. Such processes are particularly supported by higher temperatures potentially allowing in the future to target commercially viable combinations of temperatures and flow rates.

关键词： geothermal energy enhanced geothermal systems fracture mechanics creep dissolution precipitation.

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