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Chinese Journal of Structural Chemistry 2009年第4期28卷 414-418页

作者：程杰成昌梅何娟尚培华王如骥赵玉芬 School of Chemistry and Chemical Engineering Henan University of Technology Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology Ministry of Education Department of Chemistry School of Life Sciences and Engineering Tsinghua University

A new compound 2-（3,5-di-tert-butyl-2-hydroxyphenyl）-2-（3,4-dimethylphenyl） acetic acid dimethylamine salt （[NH2（CH3）2][C24H31O3]） was synthesized and structurally determined. It is of monoclinic system, space group P21/c with a = 14.731（2）, b = 10.1185（10）, c = 17.065（2） A^°, β = 98.293（10）° ,Z = 4, V = 2517.0（6）A^°^3, Dc = 1.091 g/cm^3, F（000） = 904 and Mr= 413.58. The dihedral angle defined by two benzene rings is 98.23°.

关键词： 2-(3,5-di-tcrt-butyl-2-hydraxyphenyl)-2-(3,4-dimethylphenyl) acetic acid dimethylamine salt synthesis X-ray diffraction crystal structure

Detection of 2-thiaadamantanes in the oil from Well TZ-83 in Tarim Basin and its geological implication

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Chinese Science Bulletin 2008年第3期53卷 396-401页

作者： JIANG NaiHuang ZHU GuangYou ZHANG ShuiChang WANG ZhengJun Research Institute of Petroleum Exploration and Development PetroChina Beijing 10083 China

Thermochemical sulfate reduction(TSR)causes increasing of sulfur content in the oils,reduction of oil quality,and produces a toxic and corrosive H2S which may take great adverse effect on health and *** there are several ways to identify presence of TSR in gas field,yet in the case of oil with low H2S content,it is still very difficult to identify TSR.2-thiaadamantanes is one of the most effective indicators of *** paper for the first time discovers 2-thiaadamantanes in the oil from Well TZ-83 in Tarim Basin.A silver nitrate silica gel chromatography was used to enrich the oil from low 2-thiaadamantanes content to the level that GC/MS and GC/MS/MS can detect.2-thiaadamantanes were assigned by comparison of mass spectra with published data,and the fragmental ions in mass spectra were confirmed by MRM mode of GC/MS/MS.H2S gas produced in Tazhong area is thought to be gen-erated from TSR since 2-thiaadamantanes were present in the oil.

关键词：塔里木盆地地质学油田勘探金刚烷热化学硫酸盐减少

Characteristics of Abnormal Pressure Systems and Their Responses of Fluid in Huatugou Oil Field,Qaidam Basin

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Acta Geologica Sinica(English Edition) 2009年第5期83卷 939-950页

作者： CHEN Xiaozhi XU Hao TANG Dazhen ZHANG Junfeng HU Xiaolan TAO Shu CAI Yidong School of Energy Resources China University of Geosciences Beijing 100083 China Key Laboratory of Marine Reservoir Evolution and Hydrocarbon Accumulation Mechanism Ministry ofEducation China University of Geosciences Beijing 100083 China petrochina Exploration and Production Company Beijing 100724 China

Based on the comprehensive study of core samples, well testing data, and reservoir fluid properties, the construction and the distribution of the abnormal pressure systems of the Huatugou oil field in Qaidam Basin are discussed. The correlation between the pressure systems and hydrocarbon accumulation is addressed by analyzing the corresponding fluid characteristics. The results show that the Huatugou oil field as a whole has low formation pressure and low fluid energy; therefore, the hydrocarbons are hard to migrate, which facilitates the forming of primary reservoirs. The study reservoirs, located at the Xiayoushashan Formation （N1/2） and the Shangganchaigou Formation （N1） are relatively shallow and have medium porosity and low permeability. They are abnormal low-pressure reservoirs with an average formation pressure coefficient of 0.61 and 0.72 respectively. According to the pressure coefficient and geothermal anomaly, the N1 and N1/2 Formations belong to two independent temperature-pressure systems, and the former has slightly higher energy. The low-pressure compartments consist of a distal bar as the main body, prodelta mud as the top boundary, and shore and shallow lake mud or algal mound as the bottom boundary. They are vertically overlapped and horizontally paralleled. The formation water is abundant in the Cl^- ion and can be categorized as CaCl2 type with high safinity, which indicates that the abnormal low-pressure compartments are in good sealing condition and beneficial for oil and gas accumulation and preservation.

关键词： abnormal pressure system low-pressure compartment fluid characteristics Huatugou oil field Qaidam basin

A well test model for stress-sensitive and heterogeneous reservoirs with non-uniform thicknesses

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Petroleum Science 2010年第4期7卷 524-529页

作者： Zhang Liehui Guo Jingjing Liu Qiguo State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum UniversityChengdu Sichuan 610500 China

In view of the anisotropy,heterogeneity and stress-sensitive permeability in low permeability reservoirs,an analytical well test model was established by introducing the concept of permeability *** model considered the permeability stress-sensitivity,wellbore storage effect,and the skin *** perturbation technique and Laplace transformation were used to solve the mathematical model analytically in Laplace space,and the bottom-hole pressure type curves were plotted and analyzed in real space by using the Stehfest numerical inversion.

关键词： Non-uniform thickness stress-sensitive heterogeneous reservoir transient well test type curve

Fault reactivation in No.4 structural zone and its control on oil and gas accumulation in Nanpu sag,Bohai Bay Basin,China

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Petroleum Exploration and Development 2022年第4期49卷 824-836页

作者： LIU Lu SUN Yonghe CHEN Chang LOU Rui WANG Qi Earth Science College Northeast Petroleum UniversityDaqing 163318China Institute of Chongqing Unconventional Oil and Gas Development Chongqing University of Science and TechnologyChongqing 401331China Chongqing Key Laboratory of Complex Oil&Gas Field Exploration and Development Chongqing 401331China Liaohe Oilfield Company CNPCPanjin 124010China

Based on seismic and drilling data,the reactivation mechanism of the pre-existing basement F4 strike-slip faultin Nanpu sag and its controlling effect on hydrocarbon accumulation difference are systematically *** defining fault activation stages,back-stripping fault throw and physical modeling,it is found that the Nanpu No.4 structural zone formed by the Cenozoic reactivity of the F4 fault grew from south to north,with strike-slip deformation dominated in the south and extensional deformation dominated in the *** in the No.4 structural zone and those in the adjacent No.2 and No.3 structural zones were different fault systems,which grew separately,contacted and connected,and finally interwove under the action of unified stress *** constructing the identification chart of deformation mechanisms of reactivation of pre-existing faults,it is concluded that during the sedimentary period of the Paleogene Shahejie Formation,F4 fault was reactivated by strike-slip faulting,and during the sedimentary period of Paleogene Dongying Formation and Neogene Guantao-Minghuazhen formations,it was reactivated by oblique *** controlling effects of Cenozoic reactivation of F4 fault on hydrocarbon accumulation include:(1)As the oil-source fault,it controlled the vertical cross-layer migration of oil and gas.(2)It gave rise to strike-slip transfer zone to control the distribution of sand bodies.(3)It grew upward and interacted with faults in the neighboring area,controlling the formation of two types of traps,and was favorable for oil and gas accumulation.

关键词： Bohai Bay Basin Nanpu sag Cenozoic strike-slip fault pre-existing fault fault reactivation identification template physical simulation experiment hydrocarbon accumulation

Molecular dynamics simulation of adsorption of an oil-water-surfactant mixture on calcite surface

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Petroleum Science 2009年第1期6卷 76-81页

作者： Lu Guiwu Zhang Xuefen Shao Changjin Yang Hong Department of Mathematics and Physics China University of Petroleum Beijing 102249 China Basic Department of Beijing Information Engineering College Beijing 100081 China

An interface super molecular structure model for oil-water-surfactant mixture and calcite was established. By using a molecular dynamics method, the effects of rhamnolipid, sodium dodecyl benzene sulfonate and sodium hexadecyl sulfonate on the interface adsorption behavior of oil molecules were investigated. It was found that these three surfactants could reduce oil-calcite interface binding energy, and play a role of oil-displacing agent.

关键词： Oil calcite adsorption molecular dynamics

Factors influencing oil recovery by surfactant-polymer flooding in conglomerate reservoirs and its quantitative calculation method

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Petroleum Science 2022年第3期19卷 1198-1210页

作者： Feng-Qi Tan Chun-Miao Ma Jian-Hua Qin Xian-Kun Li Wen-Tao Liu College of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijing100049China Key Laboratory Computational Geodynamics Chinese Academy of SciencesBeijing100049China Xinjiang Oilfield Company PetroChinaKaramayXinjiang834000China

This study aims to clarify the factors influencing oil recovery of surfactant-polymer(SP)flooding and to establish a quantitative calculation model of oil recovery during different displacement stages from water flooding to SP *** conglomerate reservoir of the Badaowan Formation in the seventh block of the Karamay Oilfield is selected as the research object to reveal the start-up mechanism of residual oil and determine the controlling factors of oil recovery through SP flooding experiments of natural cores and microetching *** experimental results are used to identify four types of residual oil after water flooding in this conglomerate reservoir with a complex pore structure:oil droplets retained in pore throats by capillary forces,oil cluster trapped at the junction of pores and throats,oil film on the rock surface,isolated oil in dead-ends of flow *** the four types of residual oil identified,the SP solution can enhance oil recovery by enlarging the sweep volume and improving the oil displacement ***,the viscosity-increasing effect of the polymer can effectively reduce the permeability of the displacement liquid phase,change the oil-water mobility ratio,and increase the water ***,the stronger the shear drag force of the SP solution,the more the crude oil in a porous medium is ***,the surfactant can change the rock wettability and reduce the absorption capacity of residual oil by lowering interfacial *** the same time,the emulsification further increases the viscosity of the SP solution,and the residual oil is recovered effectively under the combined effect of the above two *** the four start-up mechanisms of residual oil identified after water flooding,enlarging the sweep volume and improving the oil displacement efficiency are interdependent,but their contribution to enhanced oil recovery are *** SP flooding system primarily enlarges the sweep volume by increasing viscos

关键词： Conglomerate reservoir Water flooding Surfactant-polymer flooding Residual oil type Influencing factor Enhanced oil recovery Computational model

Quantitative investigation of multi-fracture morphology during TPDF through true tri-axial fracturing experiments and CT scanning

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Petroleum Science 2022年第4期19卷 1700-1717页

作者： Ming-Hui Li Fu-Jian Zhou Jin-Jun Liu Li-Shan Yuan Guo-Peng Huang Bo Wang State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum-BeijingBeijing102249China Unconventional Oil and Gas Research Institute China University of Petroleum-BeijingBeijing102249China Institute of Photonics Leibniz Universitat HannoverHannover30167Germany Development Company PetroChina Xinjiang Oilfield CompanyKaramay834000XinjiangChina Petroleum College China University of Petroleum-BeijingKaramayXinjiang834000China

Due to the reservoir heterogeneity and the stress shadow effect, multiple hydraulic fractures within one fracturing segment cannot be initiated simultaneously and propagate evenly, which will cause a low effectiveness of reservoir stimulation. Temporary plugging and diverting fracturing(TPDF) is considered to be a potential uniform-stimulation method for creating multiple fractures simultaneously in the oilfield. However, the multi-fracture propagation morphology during TPDF is not clear now. The purpose of this study is to quantitatively investigate the multi-fracture propagation morphology during TPDF through true tri-axial fracturing experiments and CT scanning. Critical parameters such as fracture spacing, number of perforation clusters, the viscosity of fracturing fluid, and the in-situ stress have been investigated. The fracture geometry before and after diversion have been quantitively analyzed based on the two-dimensional CT slices and three-dimensional reconstruction method. The main conclusions are as follows:(1) When injecting the high viscosity fluid or perforating at the location with low in-situ stress, multiple hydraulic fractures would simultaneously propagate. Otherwise, only one hydraulic fracture was created during the initial fracturing stage(IFS) for most tests.(2) The perforation cluster effectiveness(PCE) has increased from 26.62% during the IFS to 88.86% after using diverters.(3) The diverted fracture volume has no apparent correlation with the pressure peak and peak frequency during the diversion fracturing stage(DFS) but is positively correlated with water-work.(4) Four types of plugging behavior in shale could be controlled by adjusting the diverter recipe and diverter injection time, and the plugging behavior includes plugging the natural fracture in the wellbore, plugging the previous hydraulic fractures, plugging the fracture tip and plugging the bedding.

关键词： Hydraulic fracturing Temporary plugging and diverting fracturing(TPDF) Multiple fracture Tri-axial experiment CT scanning

Plugging behaviors of temporary plugging particles in hydraulic fractures

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Petroleum Exploration and Development 2023年第2期50卷 464-472页

作者： GUO Jianchun ZHAN Li LU Qianli QI Tianjun LIU Yuxuan WANG Xin CHEN Chi GOU Xinghao State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum UniversityChengdu 610500China CCDC Downhole Service Company Chengdu 610052China petrochina Research Institute of Petroleum Exploration and Development Beijing 100083China Engineering Technology Research Institute of petrochina Southwest Oil&Gas Field Company Guanghan 618300China

Using the visualized experimental device of temporary plugging in hydraulic fractures, the plugging behaviors of temporary plugging particles with different sizes and concentrations in hydraulic fractures were experimentally analyzed under the conditions of different carrier fluid displacements and viscosities. The results show that the greater the carrier fluid viscosity and displacement, the more difficult it is to form a plugging layer, and that the larger the size and concentration of the temporary plugging particle, the less difficult it is to form a plugging layer. When the ratio of particle size to fracture width is 0.45, the formation of the plugging layer is mainly controlled by the mass concentration of the temporary plugging particle and the viscosity of the carrier fluid, and a stable plugging layer cannot form if the mass concentration of the temporary plugging particle is less than 20 kg/m^(3)or the viscosity of the carrier fluid is greater than 3 mPa·s. When the ratio of particle size to fracture width is 0.60, the formation of the plugging layer is mainly controlled by the mass concentration of the temporary plugging particle, and a stable plugging layer cannot form if the mass concentration of the temporary plugging particle is less than 10 kg/m^(3). When the ratio of particle size to fracture width is 0.75, the formation of the plugging layer is basically not affected by other parameters, and a stable plugging layer can form within the experimental conditions. The formation process of plugging layer includes two stages and four modes. The main controlling factors affecting the formation mode are the ratio of particle size to fracture width, carrier fluid displacement and carrier fluid viscosity.

关键词： hydraulic fracture temporary plugging and diversion temporary plugging particle plugging characteristics construction parameters combination

Classification of carbonate gas condensate reservoirs using well test and production data analyses

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Petroleum Science 2011年第1期8卷 70-78页

作者： Li Yong Li Baozhu Hu Yongle Xia Jing Liu Zhaowei Deng Xingliang She Zhicheng Fan Kun Research Institute of Petroleum Exploration and Development PetroChinaBeijing 100083.China China National Oil ＆ Gas Exploration and Development Corporation PetroChinaBeijing 100034China Tarim Oilfield Company PetroChinaKorlaXingjiang 841000China

Carbonate reservoir patterns play an important role in the production performance of oil and gas wells,and it is usually classified through static data analysis which cannot reflect the actual well *** paper takes the Tazhong No.1 gas field in the Tarim Basin,China as an example to investigate the classification of carbonate *** classification method mainly combines well test analysis with production analysis—especially the Blasingame type curve *** on the characteristics of type curves for well test analysis and the Blasingame method,the relationship between the type curves and reservoir pattern was *** than 20 wells were analyzed and the reservoirs were classified into 3 major patterns with 7 ***,the classification results were validated by dynamic performance analysis of wells in the Tazhong No.1 gas *** the basis of the classification results,well stimulation（*** flooding in a single well） was carried out in three volatile-oil wells,and the oil recovery increased by up to 20%.

关键词： Carbonate reservoir pattern well test analysis production analysis type curve