|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Accounting information quality,governance efficiency and capital investment choice显示文摘This paper examines the relationship between accounting information quality and capital investment choice from the perspective of accounting information's governance function.Measuring capital investment choice as the correlation of growth of operating income between company and industry,this paper investigates whether and to what extent companies focus on their core business.The results show that the higher the quality of publicly listed firms' accounting information,the stronger that correlation,particularly when the corporate governance of the listed company is poor.The findings imply that accounting information quality can thus optimize the capital investment choice,which complements and strengthens the functioning of corporate governance.Hence,regulators should pay more attention to the market's power to supervise the behavior of listed firms,improve the governance functions of accounting information and increase the efficiency of capital allocation. | Jinbu Zhai Yutao Wang | 2016 | China Journal of Accounting Research2016，，4： | 8 |
| 2 | A Volumetric Model for Evaluating Tight Sandstone Gas Reserves in the Permian Sulige Gas Field,Ordos Basin,Central China显示文摘To accurately measure and evaluate reserves is critical for ensuring successful production of unconventional oil and gas. This work proposes a volumetric model to evaluate the tight sandstone gas reserves of the Permian Sulige gas field in the Ordos Basin. The reserves can be determined by four major parameters of reservoir cutoffs, net pay, gas-bearing area and compression factor Z, which are controlled by reservoir characteristics and sedimentation. Well logging, seismic analysis, core analysis and gas testing, as well as thin section identification and SEM analysis were used to analyze the pore evolution and pore-throat structure. The porosity and permeability cutoffs are determined by distribution function curve,empirical statistics and intersection plot. Net pay and gas-bearing area are determined based on the cutoffs, gas testing and sand body distribution, and the compression factor Z is obtained by gas component. The results demonstrate that the reservoir in the Sulige gas field is characterized by ultralow porosity and permeability, and the cutoffs of porosity and permeability are 5% and 0.15×10^(–3) μm^2, respectively. The net pay and gas-bearing area are mainly affected by the sedimentary facies, sand body types and distribution. The gas component is dominated by methane which accounts for more than 90%, and the compression factor Z of H_8(P_2h_8) and S_1(P_1s_1) are 0.98 and 0.985, respectively. The distributary channels stacked and overlapped, forming a wide and thick sand body with good developed intergranular pores and intercrystalline pores. The upper part of channel sand with good porosity and permeability can be sweet spot for gas exploration. The complete set of calculation systems proposed for tight gas reserve calculation has proved to be effective based on application and feedback. This model provides a new concept and consideration for reserve prediction and calculation in other areas. | CUI Mingming FAN Aiping WANG Zongxiu GAO Wanli LI Jinbu LI Yijun | 2019 | Acta Geologica Sinica(English Edition)2019，93，2： | 4 |
| 3 | The Oil-Bearing Pore Size Distribution of Lacustrine Shale from E2S42 Sub-Member in Damintun Sag,Liaohe Depression,Bohai Bay Basin,China显示文摘1 Introduction There is a set of organic rich shale at E22S4sub-member in damnintun sag.The organic material is typically type I.In recent years,breakthrough was obtained in shale oil exploration.The wettability of organic and inorganic pore is different.As a result,the mobility of oil in organic and inorganic pore is different.So it’s necessary to | CHEN Guohui LU Shuangfang LI Jinbu WANG Weiming TIAN Shansi SHAN Junfeng HU Yingjie MAO Jinli HAN Xia | 2015 | Acta Geologica Sinica(English Edition)2015，89，A01： | 2 |
| 4 | Occurrence mechanism of lacustrine shale oil in the Paleogene Shahejie Formation of Jiyang Depression, Bohai Bay Basin, China显示文摘To determine the occurrence mechanism and mobility of shale oil in the Shahejie Formation in the Jiyang Depression, organic geochemistry analysis, thin-section petrological observation, low-temperature nitrogen adsorption, high-pressure mercury intrusion porosimetry, field emission scanning electron microscopy experiments were conducted on shale samples to reveal its storage mechanism, including pore size, ratio of adsorbed oil to free oil, mobility and its influencing factors, and mode of storage. Residual shale oil is mainly present in pores less than 100 nm in diameter under the atmospheric temperature and pressure. The lower limit of pore size for free oil is 5 nm, and the lower limit of pore size for movable oil occurrence is about 30 nm. The light components, low TOC and high porosity are the main factors contributing to the high proportion of movable oil. Each type of pore can contain residual shale oil, but not all pores have shale oil. Pore connectivity and surface wettability are the determinants of shale oil enrichment degree and enrichment state. | WANG Min MA Rui LI Jinbu LU Shuangfang LI Chuanming GUO Zhiqiang LI Zheng | 2019 | Petroleum Exploration and Development2019，46，4： | 1 |
| 5 | Quantitative evaluation model of shale oil adsorption:A case study of the first member of Cretaceous Qingshankou Formation in northern Songliao Basin,NE China显示文摘A quantitative evaluation model that integrates kerogen adsorption and clay pore adsorption of shale oil was proposed,and the evaluation charts of adsorption-swelling capacity of kerogen(Mk)and adsorbed oil capacity of clay minerals(Mc)were established,taking the 1st member of Cretaceous Qingshankou Formation in the northern Songliao Basin as an example.The model and charts were derived from swelling oil experiments performed on naturally evolved kerogens and adsorbed oil experiments on clays(separated from shale core samples).They were constructed on the basis of clarifying the control law of kerogen maturity evolution on its adsorption-swelling capacity,and considering the effect of both the clay pore surface area that occupied by adsorbed oil and formation temperature.The results are obtained in four aspects:(1)For the Qing 1 Member shale,with the increase of maturity,Mk decreases.Given Ro of 0.83%–1.65%,Mk is about 50–250 mg/g.(2)The clay in shale adsorbs asphaltene.Mc is 0.63 mg/m^(2),and about 15%of the clay pore surface is occupied by adsorbed oil.(3)In the low to medium maturity stages,the shale oil adsorption is controlled by organic matter.When Ro>1.3%,the shale oil adsorption capacity is contributed by clay pores.(4)The oil adsorption capacity evaluated on the surface at room temperature is 8%–22%(avg.15%)higher than that is held in the formations.The proposed evaluation model reveals the occurrence mechanisms of shale oils with different maturities,and provides a new insight for estimating the reserves of shale oil under formation temperature conditions. | LI Jinbu WANG Min LU Shuangfang LIU Liang LI Ming ZHANG Yuchen WANG Xin ZHAO Xinbin ZHANG Jinyou ZHAO Ying | 2023 | Petroleum Exploration and Development2023，50，5： | 0 |
| 6 | Associations of genome-wide structural variations with phenotypic differences in cross-bred Eurasian pigs显示文摘Background During approximately 10,000 years of domestication and selection,a large number of structural variations(SVs)have emerged in the genome of pig breeds,profoundly influencing their phenotypes and the ability to adapt to the local environment.SVs(≥50 bp)are widely distributed in the genome,mainly in the form of insertion(INS),mobile element insertion(MEI),deletion(DEL),duplication(DUP),inversion(INV),and translocation(TRA).While studies have investigated the SVs in pig genomes,genome-wide association studies(GWAS)-based on SVs have been rarely conducted.Results Here,we obtained a high-quality SV map containing 123,151 SVs from 15 Large White and 15 Min pigs through integrating the power of several SV tools,with 53.95%of the SVs being reported for the first time.These high-quality SVs were used to recover the population genetic structure,confirming the accuracy of genotyping.Potential functional SV loci were then identified based on positional effects and breed stratification.Finally,GWAS were performed for 36 traits by genotyping the screened potential causal loci in the F2 population according to their corresponding genomic positions.We identified a large number of loci involved in 8 carcass traits and 6 skeletal traits on chromosome 7,with FKBP5 containing the most significant SV locus for almost all traits.In addition,we found several significant loci in intramuscular fat,abdominal circumference,heart weight,and liver weight,etc.Conclusions We constructed a high-quality SV map using high-coverage sequencing data and then analyzed them by performing GWAS for 25 carcass traits,7 skeletal traits,and 4 meat quality traits to determine that SVs may affect body size between European and Chinese pig breeds. | Wencheng Zong Jinbu Wang Runze Zhao Naiqi Niu Yanfang Su Ziping Hu Xin Liu Xinhua Hou Ligang Wang Lixian Wang Longchao Zhang | 2024 | Journal of Animal Science and Biotechnology2024，15，1： | 0 |
| 7 | An Improved Method for Evaluating Hydrocarbon Generation of Shale:A Case Study of the Lower Cretaceous Qingshankou Formation Shale in the Songliao Basin显示文摘Because of the influence of hydrocarbons,especially adsorbed hydrocarbons,on the detection of cracked hydrocarbon(S2)and total organic carbon(TOC),the hydrogen index(HI)-based hydrocarbon generation model deviates from actual practice.In this study,the shale in the first member of the Qingshankou Formation in the central depression of the Songliao Basin,where in northeastern China,was taken as the research object and a correction method for S2 and TOC was established.By correcting the experimental results of different maturity samples,the actual hydrocarbon generation model has been revealed,the differences before and after correction compared,and the evolutionary characteristics of the adsorbed hydrocarbon content were clarified.The results show that the organic matter enters the hydrocarbon generation threshold at R_(o)-0.5% and reaches the hydrocarbon generation peak at R_(o)-1.0% and that the hydrocarbon generation process ends at R_(o)-1.3%.The hydrocarbon generation model established based on the measured values has a‘lag effect’compared to actual values,and this extends the hydrocarbon generation window of organic matter and delays the hydrocarbon generation peak.With the increase of maturity,adsorbed hydrocarbon content shows the characteristics of‘first increasing,then stabilizing,and then decreasing’,and reache s the most abundant stage at Roof 0.9%-1.3%. | ZHANG Yuchen WANG Min LI Jinbu ZHAO Chen YAN Yu XU Liang DENG Zixiao | 2023 | Acta Geologica Sinica(English Edition)2023，97，6： | 0 |
| 8 | Resources Potential Evaluation of Movable Shale Oil in the E2S4 Enrichment Segment of Damintun显示文摘Has been recognized that oil and gas is common in the mud shale and oil volume is mainly influenced by geochemical characteristics of source rock(the abundance,type and maturity),workability mainly influenced by reconstructive fracturing of rock.Now the ministry of land and resources strategic research center and the main oil | WANG Xin LU Shuangfang CHEN Guohui LI Jinbu | 2015 | Acta Geologica Sinica(English Edition)2015，89，A01： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员