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Anisotropic dispersion mechanism of inter-salt shale oil reservoir in terrestrial saline lake sediments using cross-band experiments

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Science China Earth Sciences 2023年第7期66卷 1603-1621页

作者： Zengjia XIAO Jianguo ZHAO Qingliang ZHONG Fang OUYANG Xinze LIU Bohong YAN Zhi LI Ming MA Bin wang xiaoqiong wang State Key Laboratory of Petroleum Resource and Prospecting China University of Petroleum(Beijing)Beijing 102249China Exploration and Production Research Institute of Jianghan Oilfield Branch of Sinopec Wuhan 434124China Institute of Earthquake Forecasting CEABeijing 100036China Yumen Oil Field Branch of CNPC Exploration and Development Research Institute Jiuquan 735000China

The rock mechanical properties and elastic anisotropy of terrestrial shale oil reservoirs are affected by various factors,such as lithology,structure,pores,fractures,and *** experimental study of dynamic and static elastic properties can provide important mechanism analysis for the prediction of geological and engineering “sweet spots” in shale *** are a large number of studies on the measurement of static mechanical properties of shale,but the experiments on dynamic crossband elastic anisotropy of terrestrial shale have not yet been conducted ***,we report the anisotropic dispersion mechanism of favorable lithofacies(lamellar dolomitic shale,with vertical and horizontal bedding) in the inter-salt shale oil reservoir of the Qianjiang Formation for different confining pressures and fluid saturation *** experiments were conducted by the cross-band rock physics measurement technology that comprised low-frequency stress-strain measurements and a high-frequency ultrasonic *** experimental results indicated that:(1) The elastic property dispersion of the terrestrial shale was stronger than that of marine shale due to the high viscosity of the medium oil in the terrestrial *** lamellar structures and interbedded fractures were the main factors that determined the strong anisotropy of the terrestrial shale.(2) The dispersion of elastic properties from low to high frequencies in a partial oil saturation state ranged from strong to weak;the wave-induced fluid flow or intrinsic dissipation of viscoelastic inclusions may be the dominant mechanisms that caused the seismic dispersion.(3) The elastic parameters measured in the direction vertical to the bedding plane had stronger dispersion and pressure sensitivity than those measured in the direction parallel to the bedding plane,and the anisotropy and pressure sensitivity at seismic frequencies were higher than those at the ultrasonic frequencies.(4) Fluid filling reduced

关键词： Terrestrial shale oil reservoir Rock physics Cross-band experiment Anisotropic dispersion Pressure sensitivity

Monitoring the Modal Frequency and Velocity Variations of Bridges under Ambient Excitation

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Earthquake Research in China 2015年第4期29卷 554-566页

作者： Chen Haichao Ge Hongkui Meng Fanbao wang xiaoqiong Yang Wei Unconventional Natural Gas Institute China University of Petroleum-Beijing Institute of Geophysics China Earthquake Administration

We conducted a long-term monitoring experiment on the Lutuanxilu Bridge located in Changping District of Beijing, employing our recently developed real-time bridge monitoring system based on the Guralp CMG-6TD broadband seismometer. We identified the modal parameters with the stochastic subspace identification( SSI) algorithm,and continuously monitored the temporal velocity variation with coda wave *** results show that:( 1) the highly sensitive Guralp CMG-6TD broadband seismometer,which records the three-component vibration signal within broad frequency range,is well suited for long-term bridge health monitoring.( 2) With the continuous vibration signal from ambient excitation,the stochastic subspace algorithm can robustly identify the low-order modal parameters and the coda wave interferometry can accurately monitor the tiny velocity variation.( 3) The elastic modulus of bridge materials changes significantly associated with varying temperature,leading to diurnal velocity variation with amplitude of approximately 1%. The velocity variation shows strong negative correlation with temperature fluctuation. Meanwhile,the modal frequencies remain quite stable,suggesting that the velocity variation may be a more sensitive quantitative damage index.( 4) While the modal frequencies reflect the integrated health status of the bridge,the velocity variation can be utilized to monitor the local elastic modulus. Therefore,it is crucial for bridge health monitoring to continuously monitor the two key damage indexes under ambient excitation.

关键词： Ambient excitation Stochastic subspace Identification Coda wave interferometry Modal frequency Velocity variation

Experimental Study of the Main Influencing Factors in Mechanical Properties of Conglomerate

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Earthquake Research in China 2020年第3期34卷 430-451页

作者： ZHOU Bo GE Hongkui ZHOU Wei wang Jianbo HAO Hongyong wang xiaoqiong LIU Pengyu Research Institute of Experiment and Detection of Xinjiang Oilfield Company Karamay 834000China Xinjiang Laboratory of Petroleum Reserve in Conglomerate Karamay 834000China Unconventional Oil and Gas Technology Research Institute China University of PetroleumBeijing 102249China China University of Petroleum-Beijing At Karamay Karamay 834000China

In recent years,with the success of exploration and development of conglomerate reservoirs in Mahu Depression,Junggar Basin,China,it is urgent to study the mechanical properties and its influencing factors of conglomerate which is considered as a new oil and gas *** on the investigations of petrologic characteristics,heterogeneity and mechanical properties of conglomerate in Baikouquan formation,the content and geometric characteristics of gravel in conglomerate,the main factors in heterogeneity and the mechanical behavior in the triaxial compression experiment of conglomerate are analyzed in this *** results show that the size and content of gravel in conglomerate varies greatly,and conglomerate has strong heterogeneity under the influence of gravel content and *** analysis of mechanical properties of conglomerate shows that conglomerate is characterized by ***,the sphericity is negatively correlated to the gravel content,while the heterogeneity increases with the increase of conglomerate *** to the existence of heterogeneous gravel,local stress may concentrate in conglomerate when the stress is ***,a large number of micro-cracks appear at the edge of gravel,demonstrating the strong plasticity of *** paper is of referential significance to the study of rock mechanical properties and the evaluation of engineering properties in conglomerate development.

关键词： Conglomerate Petrological characteristics Heterogeneity Mechanical properties Plasticity

Study of the Reservoir Damage during Cyclic Injection and Extraction Process in the Hutubi Gas Storage

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Earthquake Research in China 2018年第2期32卷 288-300页

作者： wang Jianbo Ge Hongkui wang xiaoqiong Liu Tongyuan Liu Dunqing Zhang Yanjun Wu Shan Unconventional Natural Gas Research Institute China University of PetroleumBeijing 102249China China University of Petroleum(Beijing)at Karamay Karamay 834000XinjiangChina

During the injection and extraction process in gas storage,cyclic loading stress is applied to the reservoir pore structure,affecting the capacity and service life of gas storage. To study the influence of cyclic injection and extraction on reservoir physical property,a finite-element model of reservoir elastoplastic damage under the effect of pore pressure is established based on elastoplastic mechanics and fatigue-damage mechanics. Considering the mechanical property of the Hutubi reservoir and the injection-extraction mode of gas storage,the finite-element model is used to study the pore pressure and porosity change,fault safety,and ground surface deformation. The results show that the change in pore pressure and porosity,the deformation of the Hutubi fault,as well as the uplift and sink of the grounds surface are controlled by the fatigue damage of the reservoir pore structure during the injection-extraction process. After a 6-year service life, the cumulative deformation of the reservoir pore reaches its limit,causing pore structure collapse and porosity decrease. As a result,storage capacity declines and the ground surface starts to sink. Through this study,the safety of the Hutubi gas storage is evaluated,and some suggestions for field operations are offered.

关键词： Gas storage Injected/extracted Fatigue damage Porosity

The Power Marketing Information System Model Based on Cloud Computing

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The Power Marketing Information System Model Based on Cloud ...

Effects of low-frequency repetitive transcranial magnetic stimulation on electroencephalogram and seizure frequency in 15 patients with temporal lobe epilepsy following dipole source localization

2011 International Conference on Computer Science and Information Technology(ICCSIT 2011)

作者： Liwei wang xiaoqiong wang School of Economics and Managemen Guizhou Normal University School of Information Guizhou Institute of Finance and Economics

ISBN: (纸本)9781510811249;1510811249

Power marketing systems based on power supplying areas are no longer apt for the current electricity informatization. New technologies are required to update them and to overcome the original shortcomings, then to complete new systems that meet the needs of power grid informatization. After researches on the cloud computing technology, we found that power marketing systems constructed on private cloud can effectively solve the problems of present systems. We integrated resources of provincial grid corporations and achieved informatization of grid corporations using the below-mentioned power marketing system model based on cloud computing. Therefore, this model is of great value to the construction of provincial power marketing systems.

关键词： cloud computing power marketing system system model

来源： cnki会议评论

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Neural Regeneration Research 2008年第11期3卷 1257-1260页

作者： Xiaoming wang Deben Yang Shunxian wang xiaoqiong Zhao Lilan Zhang Zhiqiong Chen Xiangrong Sun Research Room of Neuroelectrophysiology Institute of Neurological Diseases Hospital Affiliated to North Sichuan Medical CollegeNanchong 637000 Sichuan Province China

BACKGROUND： Low-frequency repetitive transcranial magnetic stimulation （rTMS） has been shown to significantly reduce epileptiform discharges and control clinical seizures in intractable epilepsy patients. The location of epileptic foci and magnetic stimulation sites remain uncertain. The effects of rTMS on electroencephalogram and seizure remain unclear in epileptic patients following dipole source localization. OBJECTIVE： To investigate the effects of low-frequency rTMS on electroencephalogram and seizure in temporal lobe epilepsy patients after dipole source localization. DESIGN, TIME AND SETTING： The randomized, controlled study was performed at the outpatient clinic Department of Neurology, Hospital Affiliated to North Sichuan Medical College from December 2003 to February 2007. PARTICIPANTS： A total of 30 temporal lobe epilepsy patients, comprising 19 males and 11 females, aged 1749 years, presented with epileptiform discharges and were enrolled for this study. Disease course ranged between 1-6 years, with 1-5 seizures per month. Imaging examinations revealed 11 patients with structural changes in the brain. The patients were randomly and equally assigned into drug treatment and transcranial magnetic stimulation （TMS） groups. METHODS： Patients in the drug treatment group were orally treated with carbamazepine. Patients in the TMS group received oral carbamazepine treatment of and TMS. A Maglite-r25 magnetic stimulator （Dantec Dynamics, Denmark） was used to stimulate epileptic foci in the temporal lobe following electroencephalogram dipole localization （1 Hz, 90% threshold intensity, at a stimulation frequency of 500 times, once a day, for 7 days）. MAIN OUTCOME MEASURES： At 30 days after TMS, seizure frequency and rate of epileptiform discharges were observed in patients from both groups. Therapeutic safety was investigated during treatment. RESULTS： Within 30 days of treatment, there were no significant differences in seizure frequency between the TMS group （1.

关键词： dipole localization electroencephalogram epilepsy transcranial magnetic stimulation

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特定构式中疑问代词的双重语义与构式互动

重庆大学学报（社会科学版） 2016年第3期22卷 208-214页

作者：王小穹重庆理工大学语言学院重庆400054

疑问代词在某些特定构式中同时具有客观的指代义和主观的语用义,其双重语义是词项义与构式义互动的结果。一方面构式义压制词项义,使词项义逐渐向构式义靠拢;另一方面词项义吸收构式义,与构式义融合并实现为双重语义。疑问代词词项义与... 详细信息

疑问代词在某些特定构式中同时具有客观的指代义和主观的语用义,其双重语义是词项义与构式义互动的结果。一方面构式义压制词项义,使词项义逐渐向构式义靠拢;另一方面词项义吸收构式义,与构式义融合并实现为双重语义。疑问代词词项义与构式义的互动反映了词义分析应采取的基本思路,即词项和构式应该结合起来进行考察,具体词项义是客观指代义和主观语用义的统一。

关键词：指代义语用义构式互动双重语义

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论传统产业与高新技术产业的互动

中州学刊 2017年第8期 29-34页

作者：王霄琼郑州大学商学院郑州大学产业经济研究中心

中国产业政策存在明显的高新技术产业偏向,尽管这种政策导向有助于高新技术产业比重的快速增加,但同时也出现了中国高端产业低端化、制造能力提升缓慢以及地方政府发展高新技术产业的无序竞争等相关问题。高新技术产业和传统产业之间存... 详细信息

中国产业政策存在明显的高新技术产业偏向,尽管这种政策导向有助于高新技术产业比重的快速增加,但同时也出现了中国高端产业低端化、制造能力提升缓慢以及地方政府发展高新技术产业的无序竞争等相关问题。高新技术产业和传统产业之间存在内在的互动关系,正是通过和传统产业的互动,高新技术产业才能促进生产率增长,推动经济发展。高新技术产业和传统产业的互动,尤其是高新技术产业的新产品、新技术应用或扩散于传统产业,并不是一个自然而然的平滑过程,存在巨大的产业政策空间。未来中国产业政策需要进一步明确政策的着力点、调整中央和地方产业政策的分工、构建地方产业政策的协同关系。

关键词：高新技术产业传统产业结构调整经济增长生产率

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中国能源消费与GDP增长相关性分析

经济问题探索 2009年第7期 41-46页

作者：王筱琼昆明理工大学管理与经济学院昆明650093

能源消耗是当今世界最关注的问题之一。如何协调好能源消耗与国民经济发展的内在关系,并在GDP增长的同时,实现能源低消耗和高效利用,且减少其对环境的影响,是世界各国都在努力的事。本文立足与全国,利用格兰杰因果检验,对国内能源消耗与... 详细信息

能源消耗是当今世界最关注的问题之一。如何协调好能源消耗与国民经济发展的内在关系,并在GDP增长的同时,实现能源低消耗和高效利用,且减少其对环境的影响,是世界各国都在努力的事。本文立足与全国,利用格兰杰因果检验,对国内能源消耗与GDP增长进行数据分析,提出能源消耗与GDP增长相关性特点及协调发展的建议。

关键词：能源消耗国民经济发展计量模型数据分析