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CRETACEOUS MAGNETOSTRATIGRAPHY IN THE SONGLIAO BASIN, CHINA

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Science China Chemistry 1990年第2期33卷 246-256页

作者：方大钧王兆樑金国海高瑞琪叶德泉谢锦龙 Department of Earth's Sciences Zhejiang University Hangzhou 310027 PRC Research institute of Exploitation and Development Daqing Oil Field 163712 PRC

This paper is the result of research on the Cretaceous magnetostratigraphy in the Songliao Basin. The palaeomagnetic experiment on 2235 specimens from 24 drills and an outcrop profile in Quantou shows that most specimens have stable remanent *** features of polarities associated with all the rock formations of the Cretaceous in the Songliao plain have been summarized. The reversed polarity zones have been found in the Yingcheng, Dcnglouku, Yaojia and Nenjiang Formations. These reserved-polarity zones and their geologic ages have been argued. Accordingly. the polarity columns for different drills and a comprehensive column have been compiled, and the classification and correlation of the Cretaceous stratigraphy in the Songliao Basin have been discussed.

关键词： Cretaceous magnetostratigraphy stratigraphic classification and correlation.

Study on the thixotropy and structural recovery characteristics of waxy crude oil emulsion

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Petroleum Science 2021年第4期18卷 1195-1202页

作者： Li-Ping Guo Xue Han Yun Lei Lei Wang Peng-Fei Yu Shuang Shia Key Laboratory of Enhanced oil Recovery Ministry of EducationNortheast Petroleum UniversityHeilongjiang163000China Jiangsu Key Laboratory of oil and Gas Storage&Transportation Technology Changzhou UniversityJiangsu213164China Exploration and Development Research institute Daqing Oil Field Company LtdDaqingHeilongjiang163712China

Waxy crude oil emulsion has thixotropic properties at the temperature near gel point,which is a macromechanical characterization of the structure failure and recovery of waxy crude oil *** this paper,the thixotropic behaviors of waxy crude oil emulsion near gel point were studied using hysteresis loop formed by stress linear increase and decrease,as well as the structural recovery *** influence of the loading conditions and water content on the thixotropy of waxy crude oil emulsion were analyzed with hysteresis loop *** concept of"structural recovery"was introduced to study the degree of structural recovery after different stewing,and influencing factors were taken into *** have shown that for waxy crude oil emulsion,the failure to fully restore of the structure after lysis is the cause of the formation of hysteresis loop,and the loading conditions will not affect the strength of thixotropy and the degree of structural ***,the dispersed phase droplets weaken the thixotropy and structure recovery characteristics of waxy crude oil emulsion,and the greater the water content,the weaker the *** findings can help to better understand the safe and economic operation of waxy crude oil-water pipeline transportation.

关键词： Waxy crude oil Emulsion Thixotropic properties Structural recovery Hysteresis loop

Mechanisms of oil displacement by ASP-foam and its influencing factors

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Petroleum Science 2010年第1期7卷 100-105页

作者： Wu Wenxiang Pan Jianhua Guo Mingri Key Laboratory of Enhanced oil and Gas Recovery Ministry of Education Daqing Petroleum Institute DaqingHeilongjiang 163318 China

ASP-foam （ASPF） is a system prepared by injecting natural gas into the conventional alkali- surfactant-polymer （ASP） system. Foam can be formed in the porous media by the interaction of gas and surfactant in the ASP system. With the ASPF system, oil recovery is improved as the interfacial tension （IFT） is reduced to a relatively low level, and the swept volume is enlarged. In this paper, four surfactants were evaluated and characterized by IFT between ASP system and oil and the foaming performance. AI- kyl benzene sulfonate （ORS-41） was chosen as the surfactant to best reduce IFT between displacement fluids and oil and improve the foaming performance. The mechanisms of ASPF flooding were studied in this paper, the results show that the ASPF flooding not only enlarges the swept volume but also enhances the displacement efficiency. The effects of reservoir heterogeneity, the gas-liquid ratio of ASPF system, and the concentrations of polymer and surfactant on the displacement efficiency were studied. A field trial of ASPF flooding has also been conducted. Both the laboratory results and the field trial results show that the ASPF flooding can significantly increase the oil recovery, with a 30% increase in the proportion of the original oil in place recovered compared with water flooding.

关键词： oil displacement by ASPF system oil displacement mechanism displacement efficiency influencing factor

Discovery of Late Cretaceous foraminifera in the Songliao Basin: Evidence from SK-1 and implications for identifying seawater incursions

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Chinese Science Bulletin 2011年第3期56卷 253-256页

作者： XI DangPeng WAN XiaoQiao FENG ZhiQiang LI Shun FENG ZiHui JIA JianZhong JING Xia SI WeiMin School of Earth Science and Resources China University of Geosciences (Beijing) Beijing 100083 China Exploration and Development Research institute of daqing oil field Company Daqing 163712 China

The Songliao Basin is the largest oil-bearing basin in *** the absence of sufficient evidence,the possibility of seawater incursion(s) into the Songliao Basin remains ***,we discovered relatively abundant foraminifera fossils from units 1 and 2 of the Nenjiang Formation of borehole *** foraminifera (Gavlinella sp.,Anomalinoides sp.,Pullenia sp.,Haplophragmoides sp.,Karrorulina hokkaidoana,Clavulinoides sp.),as well as planktonic foraminifera (Archaeoglobigerina blowi,Archaeoglobigerina cretacea and Hedbergella flandrini),were *** fossils were widely distributed in the marine *** to the global distribution of the above-mentioned planktonic foraminifera,the age of these fossil bearing strata appears to be Late Coniacian to *** importantly,these foraminifera provide direct evidence for marine water incursions into the Songliao Basin during deposition of the Lower Nenjiang Formation.

关键词：有孔虫化石松辽盆地海水入侵晚白垩世证据水库浮游有孔虫底栖有孔虫

NUMERICAL SIMULATION STUDY ON SURFACTANT FLOODING FOR LOW PERMEABILITY oilfield IN THE CONDITION OF THRESHOLD PRESSURE

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Journal of Hydrodynamics 2008年第4期20卷 492-498页

作者： YIN Dai-yin PU Hui Key Laboratory of Enhanced oil Recovery of Ministry of Education Daqing Petroleum Institute Daqing 163318 China Department of Chemical and Petroleum Engineering University of Wyoming Laramie WY USA 82070

Based on the non-Darcy flow characteristics of surfactant flooding in the low permeability oilfield, considering the changes of threshold pressure and influence of surfactant on convection, diffusion, adsorption and retention, a mathematical model is established for a three-dimensional, two-phase, three-component surfactant flooding. A new treatment for the changes of threshold pressure and a novel correction method for the relative permeability curve in the process of surfactant flooding are derived, which enhances the matching degree between the mathematical model and field practice. The mathematical model was used to perform the numerical simulation study for a pilot test of surfactant flooding in Chao 45 Block of daqing oilfield, a proper injection plan was optimized. After the optimized plan was carried out in oilfield, the desirable effects, like pressure-reducing, injection rate increase, and the increase of oil recovery, were achieved. The average oil increase for single well reaches 37%, the ratio of cost to revenue is above 1：4, so the economic effect of scale is promising.

关键词： low permeability surfactant non-Darcy flow threshold pressure gradient numerical simulation

CURRENT COLLOIDAL DISPERSION GELS ARE NOT SUPERIOR TO POLYMER FLOODING

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大庆石油地质与开发 2006年第5期25卷 71-80页

作者： Seright Randy Han Peihui Wang Dongmei . New Mexico Tech USA Exploration and Development Research institute of daqing oil field Company Ltd. PetroChina

The suggestion that the colloidal-dispersion-gel (CDG) process is superior to normal polymer flooding is misleading and generally incorrect. Colloidal dispersion gels, in their present state of technological development, should not be advocated as an improvement to, or substitute for, polymer flooding. Gels made from aluminum-citrate crosslinked polyacrylamides can act as conventional gels and provide effective conformance improvement in treating some types of excess water production problems if sound scientific and engineering principles are respected.

关键词： Colloidal-dispersion-gel(CDG) Polymer flooding Controversy

Thermal Alteration of Spores and Pollen and Maturity of Organic Matter of the Cretaceous System,Songliao Basin,Northeast China

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Acta Geochimica 1984年第1期 84-92页

作者：赵传本 institute of Science and Designing daqing oil field

The relationship between spore-pollen color and the degree of maturation of organicmatter is discussed with regard to oil generation and evolution,as typified by the Creta-ceous system in the daqing oil field,central Songliao Basin,Northeast *** varia-tion of spores and pollen is considered as a function of sedimentary environment and ther-mal ***-pollen color is classified into seven grades,and the degree of thermalalteration is studied in terms of color *** show that the spore-pollen color in-dex for the strata at the depth of 1,000—3,000 m(stratigraphically from the first memberof the Liangjiang Formation to the upper Quantou Formation)ranges from 2.5—5.0,cor-responding to a palaeotemperature range of 60°—140℃.These are the optimum oil-gene-rating *** strata underlying the lower Quantou Formation below 3,000 m with thecolor index in excess of 5 and the palaeotemperature over 140℃ may be favorable for *** for the strata at the depth of less than 1,000 m,i.e.,stratigraphicallyoverlying the second member of the Liangjiang Formation,which are characterized by acolor index of 1.0—1.5 and a palaeotemperature of less than 60℃,the degree of matura-tion of organic matter is lower than that in the oil-generating strata.

关键词： Thermal Alteration of Spores and Pollen and Maturity of Organic Matter of the Cretaceous System,Songliao Basin,Northeast China

Thermal decomposition analysis of coal-waste sludge and coal-sunflower seed husk blends

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Journal of Harbin institute of Technology(New Series) 2010年第5期17卷 641-646页

作者：王淑彦李晓琦刘文铁宋承毅王春生董群 School of Petroleum Engineering Northeast Petroleum University School of Energy Science and Engineering Harbin Institute of Technology daqing oil field Design institute School of Chemistry and Chemical Engineering Northeast Petroleum University

The thermal decomposition analysis of coal-pharmaceutical waste sludge,coal-sewage waste sludge blends and coal-sunflower seed husk blends are studied by TG dynamic runs at the heating rate of 20 ℃/min within the temperature range of 25 ℃-900 ℃.The effect of different kinetic models on the determination of kinetic parameters of thermal decomposition has been *** show that for coal-pharmaceutical sludge blend,coal-sewage sludge blend and coal-sunflower seed husk blend the optimal model functions are the three-dimensional diffusion reaction,2-dimensional and 3-diemensional nucleation and growth reactions,*** Arrhenius kinetic parameters of the pre-exponential factor and activation energy of blends,as well waste sludge and sunflower seed husk only are proposed.

关键词： pyrolysis coal-waste sludge blends thermogravimetric analysis model function kinetic parameters

NUMERICAL SIMULATION AND field IMPLEMENTATION OF SURFACTANT FLOODING

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Journal of Hydrodynamics 2006年第1期18卷 109-117页

作者： YIN Dai-yin PU Hui Department of Petroleum Engineering Daqing Petroleum Institute Daqing 163318 China

Based on the features of surfactant flooding, a mathematical model for surfactant flooding is established. The adsorption-retentlon, convection diffusion of surfactant and influence of concentration change upon relative permeability curve are included in the model. The novel description of adsorption quantity of surfaetant and relative permeability curve are presented, which enhance the coincidence between mathematical model and field practice, the relative errors of main development indexes arc within 6%. The model is applied to the numerical research of the surfactant flooding in the untabulated beds of Xingl-3 surfactant flooding pilot site of No. 4 oil Production Company of daqing oilfield, the influences of surfaetant concentration, injection quantity, slug combination mode upon the development effect and economic benefit are quantitatively analyzed, the injection scheme is optimized as follows： surfaetant concentration is 0.5%, slug volume is 0.02 PV, slug combination mode is 2 slugs. After the implementation of scheme in oilfield, the cumulative increase of oil is 2186.0 t, up to nearly 30%.

关键词： Surfactant mathematical model injection scheme numerical simulation recovery efficiency