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| 1 | Novel Water-Based Drilling and Completion Fluid Technology to Improve Wellbore Quality During Drilling and Protect Unconventional Reservoirs显示文摘The efficient exploration and development of unconventional oil and gas are critical for increasing the self-sufficiency of oil and gas supplies in China.However,such operations continue to face serious problems(e.g.,borehole collapse,loss,and high friction),and associated formation damage can severely impact well completion rates,increase costs,and reduce efficiencies.Water-based drilling fluids possess certain advantages over oil-based drilling fluids(OBDFs)and may offer lasting solutions to resolve the aforementioned issues.However,a significant breakthrough with this material has not yet been made,and major technical problems continue to hinder the economic and large-scale development of unconventional oil and gas.Here,the international frontier external method,which only improves drilling fluid inhibition and lubricity,is expanded into an internal-external technique that improves the overall wellbore quality during drilling.Bionic technologies are introduced into the chemical material synthesis process to imitate the activity of life.A novel drilling and completion fluid technique was developed to improve wellbore quality during drilling and safeguard formation integrity.Macroscopic and microscopic analyses indicated that in terms of wellbore stability,lubricity,and formation protection,this approach could outperform methods that use typical OBDFs.The proposed method also achieves a classification upgrade from environmentally protective drilling fluid to an ecologically friendly drilling fluid.The developed technology was verified in more than 1000 unconventional oil and gas wells in China,and the results indicate significant alleviation of the formation damage attributed to borehole collapse,loss,and high friction.It has been recognized as an effective core technology for exploiting unconventional oil and gas resources.This study introduces a novel research direction for formation protection technology and demonstrates that observations and learning from the natural world can provide an inexhaustible source of ideas and inspire the creation of original materials,technologies,and theories for petroleum engineering. | Guancheng Jiang Jinsheng Sun Yinbo He Kaixiao Cui Tengfei Dong Lili Yang Xukun Yang Xingxing Wang | 2022 | Engineering2022，，11： | 11 |
| 2 | Evaluation of gas wettability and its effects on fluid distribution and fluid flow in porous media显示文摘The special gas wettability phenomenon of reservoir rocks has been recognized by more and more researchers.It has a significant effect on efficient development of unconventional reservoirs.First,based on the preferentially gas-covered ability and surface free energy changes,definition and evaluation methods have been established.Second,a method for altering rock wettability and its mechanisms have been studied,surface oriented phenomena of functional groups with low surface energy are the fundamental reason for gas wettability alteration of rock.Third,the effect of gas wettability on the surface energy,electrical properties and dilatability are investigated.Last,the effects of gas wettability on capillary pressure,oil/gas/water distribution and flow are investigated with capillary tubes and etchedglass network models.The gas wettability theory of reservoir rocks has been initially established,which provides theoretical support for the efficient production of unconventional reservoirs and has great significance. | Jiang Guancheng Li Yingying Zhang Min | 2013 | Petroleum Science2013，10，4： | 10 |
| 3 | The role of MALAT1 correlates with HPV in cervical cancer显示文摘 | Yan Jiang Yuehui Li Shujuan Fang Binyuan Jiang Changfei Qin Pingli Xie Guohua Zhou Guancheng Li | 2014 | Oncology Letters2014，，6： | 3 |
| 4 | Inhibiting effect of dopamine adsorption and polymerization on hydrated swelling of montmorillonite显示文摘 | Xuan Yang Jiang Guancheng Li Yingying | 2013 | Colloids Surf A2013，422，： | 1 |
| 5 | Removal efficiency of heavy oil by free and immobilised microorganisms on laboratory‐scale显示文摘 | Mutai Bao Qingguo Chen Yuanjiao Gong Yiming Li Haifeng Wang Guancheng Jiang | 2011 | Can. J. Chem. Eng2011，，1： | 1 |
| 6 | Carbon dioxide/calcium oxide responsive behavior and application potential of amine emulsion显示文摘Green and low cost CO_(2) and CaO were used to stimulate amine emulsions to reveal the responsive behavior of amine emulsions.On this basis,oil-based drilling fluids responsive to CO_(2) and CaO were formulated and their properties were evaluated.The results showed that the amine emulsions inversed from water-in-oil state to oil-in-water state readily and their rheological behavior underwent transitions of decreasing,rising again and decreasing again via induction by CO_(2).These CO_(2) responsive behaviors could be reversed by CaO.Oil-based drilling fluids prepared based on the amine emulsions with oil-water volume ratios of 50:50 to 70:30,densities of 1.4-2.0 g/cm^(3) had good rheological and filtration properties at 160℃;and be readily cleaned up using CO_(2) bubbling.The useless solid phase with low density could be removed efficiently via reducing the viscosity of emulsion by CO_(2) and the residual liquid phase could be restored to the original state by CaO and reused to prepare drilling fluid.The mechanisms analysis indicated that CO_(2)/CaO induced the reversible conversion between amine emulsifiers and their salts,which enabled the reversible regulation of both the hydrophilic-lipophilic balance of amine emulsifiers and the emulsion particles’size and finally caused the controllable-reversion of the form and rheology of amine emulsion. | REN Yanjun LU Yanyan JIANG Guancheng ZHOU Wenjing WU Liansong YAO Rugang XIE Shuixiang | 2021 | Petroleum Exploration and Development2021，48，5： | 1 |
| 7 | Development of key additives for organoclay-free oil-based drilling mud and system performance evaluation显示文摘Traditional oil-based drilling muds(OBMs) have a relatively high solid content, which is detrimental to penetration rate increase and reservoir protection. Aimed at solving this problem, an organoclay-free OBM system was studied, the synthesis methods and functioning mechanism of key additives were introduced, and performance evaluation of the system was performed. The rheology modifier was prepared by reacting a dimer fatty acid with diethanolamine, the primary emulsifier was made by oxidation and addition reaction of fatty acids, the secondary emulsifier was made by amidation of a fatty acid, and finally the fluid loss additive of water-soluble acrylic resin was synthesized by introducing acrylic acid into styrene/butyl acrylate polymerization. The rheology modifier could enhance the attraction between droplets, particles in the emulsion via intermolecular hydrogen bonding and improve the shear stress by forming a three-dimensional network structure in the emulsion. Lab experimental results show that the organoclay-free OBM could tolerate temperatures up to 220 ?C and HTHP filtration is less than 5 m L. Compared with the traditional OBMs, the organoclay-free OBM has low plastic viscosity, high shear stress, high ratio of dynamic shear force to plastic viscosity and high permeability recovery, which are beneficial to penetration rate increase, hole cleaning and reservoir protection. | SUN Jinsheng HUANG Xianbin JIANG Guancheng LYU Kaihe LIU Jingping DAI Zhiwen | 2018 | Petroleum Exploration and Development2018，45，4： | 1 |
| 8 | Effectof water-based drilling fluid components on filter cakestructure 显示文摘 | YAO Rugang JIANG Guancheng LI Wei | 2014 | Powder Technology2014，262，： | 1 |
| 9 | The effect of inorganic salt on the structure of filter cake of water based drilling fluid显示文摘 | YAO Rugang JIANG Guancheng YE Longyun | 2014 | Proceedings2014，，01： | 1 |
| 10 | Biodegradation of partially hydrolyzed polyacrylamide by bacteria isolated from production water after polymer flooding in an oil field显示文摘 | Mutai Bao Qingguo Chen Yiming Li Guancheng Jiang | 2010 | Journal of Hazardous Materials2010，，1： | 1 |
| 11 | Inhibiting effect of dopamine adsorption and polymerization on hydrated swelling of montmorillonite显示文摘 | XUAN Yang JIANG Guancheng LI Yingying | 2013 | Colloids and Surfaces A: Physicochemical and Engineering Aspects2013，422，： | 1 |
| 12 | Inhibiting effect of dopamine adsorption and polymerization on hydrated swelling of montmorillonite显示文摘 | Xuan Yang Jiang Guancheng Li Yingying Wang Jinshu Geng Haonan | 2013 | Colloids and Surfaces A: Physicochemical and Engineering Aspects2013，422，： | 1 |
| 13 | A saturated saltwater drilling fluid based on salt-responsive polyampholytes显示文摘Based on special antipolyelectrolyte effect of zwitterion polymer with same quantity of anionic and cationic charges, we developed two types of salt-responsive polyampholytes, one with high molecular weight and low charge density(HvL) and the other with low molecular weight and high charge density(LvH), by inverse emulsion polymerization. Molecular structure and salt-responsiveness of them were characterized by 1 H-NMR and rheology measurement, respectively. HvL and LvH were evaluated in saturated-salt bentonite suspension and influences of their ratio on apparent viscosity and fluid loss were investigated as well. The results indicate that HvL is better at decreasing fluid loss while LvH is better at maintaining low viscosity. A saturated saltwater drilling fluid centering on HvL and Lv H with simple formula was designed and applied. It is indicated that salt-responsive polyampholytes are fundamentally better than AM-AMPS anionic copolymer and AM-AMPS-DMDAAC amphoteric copolymer. The saturated saltwater drilling fluid has excellent thermal stability, tolerance to bentonite and shale cuttings, and certain resistance to CaCl_2. Salt-responsive polyampholytes can be used in KCl-saturated drilling fluid, with universal adaptability. | JIANG Guancheng HE Yinbo CUI Wuge YANG Lili YE Chenxi | 2019 | Petroleum Exploration and Development2019，46，2： | 0 |
| 14 | Electronic modulation of sprout-shaped NiCoP nanoarrays by N and Ce doping for efficient overall water splitting显示文摘Bifunctional catalysts for hydrogen/oxygen evolution reactions(HER/OER)are urgently needed given the bright future of water splitting hydrogen production technology.Here,the self-supporting N and Ce dual-doped NiCoP nanoarrays(denoted N,Ce-NiCoP/NF)grown on Ni foam are successfully constructed.When the N,Ce-NiCoP/NF simultaneously acts as the HER and OER electrodes,the voltages of 1.54 and 2.14 V are obtained for driving 10 and 500 mA·cm^(-2)with a robust durability,and demonstrate its significant potential for practical water electrolysis.According to both experiments and calculations,the electronic structure of NiCoP may be significantly altered by strategically incorporating N and Ce into the lattice,which in turn optimizes the Gibbs free energy of HER/OER intermediates and speeds up the water splitting kinetics.Moreover,the sprout-shaped morphology significantly increases the exposure of active sites and facilitates charge/mass transfer,thereby augmenting catalyst performance.This study offers a potentially effective approach involving the regulation of anion and cation double doping,as well as architectural engineering,for the purpose of designing and optimizing innovative electrocatalysts. | Ting Zhao Guancheng Xu Bingbing Gong Jiahui Jiang Li Zhang | 2024 | Nano Research2024，17，1： | 0 |
| 15 | Another Year of Record Heat for the Oceans显示文摘Changes in ocean heat content(OHC), salinity, and stratification provide critical indicators for changes in Earth’s energy and water cycles. These cycles have been profoundly altered due to the emission of greenhouse gasses and other anthropogenic substances by human activities, driving pervasive changes in Earth’s climate system. In 2022, the world’s oceans, as given by OHC, were again the hottest in the historical record and exceeded the previous 2021 record maximum.According to IAP/CAS data, the 0–2000 m OHC in 2022 exceeded that of 2021 by 10.9 ± 8.3 ZJ(1 Zetta Joules = 1021Joules);and according to NCEI/NOAA data, by 9.1 ± 8.7 ZJ. Among seven regions, four basins(the North Pacific, North Atlantic, the Mediterranean Sea, and southern oceans) recorded their highest OHC since the 1950s. The salinity-contrast index, a quantification of the “salty gets saltier–fresh gets fresher” pattern, also reached its highest level on record in 2022,implying continued amplification of the global hydrological cycle. Regional OHC and salinity changes in 2022 were dominated by a strong La Ni?a event. Global upper-ocean stratification continued its increasing trend and was among the top seven in 2022. | Lijing CHENG John ABRAHAM Kevin ETRENBERTH John FASULLO Tim BOYER Michael EMANN Jiang ZHU Fan WANG Ricardo LOCARNINI Yuanlong LI Bin ZHANG Fujiang YU Liying WAN Xingrong CHEN Licheng Feng Xiangzhou SONG Yulong LIU Franco RESEGHETTI Simona SIMONCELLI Viktor GOURETSKI Gengxin CHEN Alexey MISHONOV Jim REAGAN Guancheng LI | 2023 | Advances in Atmospheric Sciences2023，40，6： | 0 |
| 16 | Laboratory Evaluation Procedures of Formation Damage Induced by Completion Fluids in Horizontal Wells显示文摘LaboratoryEvaluationProceduresofFormationDamageInducedbyCompletionFluidsinHorizontalWells￥YanJienian,JiangGuanchengandWuXuesh... | Yan Jienian, Jiang Guancheng and Wu Xueshi(University of Petroleum,Dongying) | 1995 | China Oil & Gas1995，2，3： | 0 |
| 17 | The biodiesel-based flat-rheology drilling fluid system显示文摘As the base oil of the current flat-rheology synthetic drilling fluid is high in cost and not renewable, the biodiesel-based flat-rheology drilling fluid with low-cost, environmental protection and renewable advantage was studied. Based on the optimization of raw materials, a cheap, environment-friendly biodiesel of soybean oil ethyl ester with good fluidity at low temperature was selected as the base oil. By selecting high oil-water ratio and introducing cationic surfactant into the auxiliary emulsifier, the thickening of biodiesel-based emulsion caused by hydrolysis and saponification after high-temperature aging was effectively eliminated. The organoclay prepared with cationic modifier of hexadecyl trimethyl ammonium chloride was used to improve the rheologic properties, stability and fluid loss of the drilling fluid while preventing low-temperature thickening. A flat-rheology modifier was synthesized with dimer fatty acid and cocoanut fatty acid diethanolamide, which could form strong network structure in the biodiesel-based drilling fluid to adjust effectively rheological properties of the drilling fluid. A biodiesel-based flat-rheology drilling fluid system with the density of 1.2 g/cm^(3) has been formulated which has constant rheology in the temperature range of 2-90 ℃, temperature tolerance of 160 ℃, seawater salinity tolerance of 5%, shale cuttings tolerance of 10%, and is environmentally friendly. | JIANG Guancheng SHI He HE Yinbo | 2022 | Petroleum Exploration and Development2022，49，1： | 0 |
| 18 | Research status and development directions of intelligent drilling fluid technologies显示文摘By reviewing the current status of drilling fluid technologies with primary intelligence features at home and abroad,the development background and intelligent response mechanisms of drilling fluid technologies such as variable density,salt response,reversible emulsification,constant rheology,shape memory loss prevention and plugging,intelligent reservoir protection and in-situ rheology control are elaborated,current issues and future challenges are analyzed,and it is pointed out that intelligent material science,nanoscience and artificial intelligence theory are important methods for future research of intelligent drilling fluid technology of horizontal wells with more advanced intelligent features of'self-identification,self-tuning and self-adaptation'.Based on the aforementioned outline and integrated with the demands from the drilling fluid technology and intelligent drilling fluid theory,three development suggestions are put forward:(1)research and develop intelligent drilling fluids responding to variable formation pressure,variable formation lithology and fluid,variable reservoir characteristics,high temperature formation and complex ground environmental protection needs;(2)establish an expert system for intelligent drilling fluid design and management;and(3)establish a real-time intelligent check and maintenance processing network. | JIANG Guancheng DONG Tengfei CUI Kaixiao HE Yinbo QUAN Xiaohu YANG Lili FU Yue | 2022 | Petroleum Exploration and Development2022，49，3： | 0 |
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