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Pore volumes to breakthrough estimation in carbonate acidizing with hydrochloric acid by using an analytical derivation method

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Petroleum 2020年第4期6卷 362-367页

作者： Sina Lohrasb radzuan junin Department of Petroleum Engineering School of Chemical and Energy EngineeringUniversiti Teknologi MalaysiaUTMSkudai81310JohorMalaysia Institute for Oil and Gas Universiti Teknologi Malaysia81310JohorMalaysia

Acidizing treatment is considered as a significant process in the oil well stimulations to form wormholes in carbonate formation in order to enhance the reservoir fluid *** the number of pore volumes to breakthrough is an important objective in matrix acidizing,for it contributes to determining the wormhole characteristics such as type,shape,and *** this number in experimental works requires a considerable amount of time,energy and ***,this study aimed to establish an analytical method in which a reasonable result is achieved for the number of pore volumes to *** purpose is accomplished by solely implementing acid and formation properties without performing any experimental *** process of wormhole creation is done through developing a numerical model by utilizing the conservation of mass law method in which the carbonate core is considered as a closed system and the overall mass in the system as constant during the acid injection ***,a constant number is added to the mathematical part of the model in order to eliminate the dimensionless Damk鰄ler number which is supposed to be calculated *** results of the numerical procedure of the model are further compared to four other experimental works,which led to calculating the average accuracy of this model that is shown to be 95.98%.This study puts forward a comprehensive numerical model to estimate the number of pore volumes to breakthrough with an acceptable accuracy rate merely through implementing known acid and core properties.

关键词： Analytical method Carbonate acidizing Pore volume to breakthrough Hydrochloric acid

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Estimation of pore volumes to breakthrough number in limestone cores by derivation of an empirical model

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Petroleum Research 2021年第3期6卷 264-270页

作者： Sina Lohrasb radzuan junin Department of Petroleum Engineering School of Chemical and Energy EngineeringFaculty of EngineeringUniversiti Teknologi MalaysiaUTM81310Johor BahruMalaysia Institute for Oil and Gas Universiti Teknologi Malaysia81310Johor BahruMalaysia

Acidizing in carbonate formations is an inevitable stimulation treatment method for oil and gas *** the limestone,acidizing stimulation makes capillary wormholes to increase fluids flow reservoir pro*** pore volume to breakthrough number is one of the main indexes for recognizing the wormhole ***,finding the pore volume to breakthrough number is one of the main goals in the limestone *** this number is always required for experimental works,which needs time,energy and *** purpose of this research is to develop an empirical method to estimate an acceptable result for this number merely by implementing limestone core and acid properties without any experimental *** order to create a wormhole,an empirical method is developed using the law of conservation of mass considering that the core of limestone as an isolated package and the overall mass is constant in this package in the acidizing ***,to develop the mathematical section,the Damk€ohler number is *** this number must be calculated experimentally,a constant number is created in the model to eliminate the Damkohler *** average accuracy of 92.31%is obtained for the developed empirical model by comparing the results obtained from the other three experimental and numerical *** study conclusively provides a thoroughly empirical method for estimating a high accuracy of the pore volume to breakthrough number by only using known physical properties limestone core and acid.

关键词： Acidizing Pore volumes to breakthrough Limestone Wormhole Empirical model

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Oil-water interfacial tension, wettability alteration and foaming studies of natural surfactant extracted from Vernonia Amygdalina

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Petroleum Research 2022年第3期7卷 350-356页

作者： Happiness Imuetinyan Augustine Agi Afeez Gbadamosi radzuan junin Jeffrey Osehd Department of Petroleum Engineering College of Engineering and TechnologyFederal University of Petroleum ResourcesEfurunNigeria Department of Petroleum Engineering School of Chemical and Energy EngineeringFaculty of EngineeringUniversiti Teknologi Malaysia81310Skuda JohorMalaysia Center for Integrative Petroleum Research King Fahd University of Petroleum and MineralsDhahran31262Saudi Arabia Department of Petroleum Engineering Federal University of Technology OwerriNigeria

Surfactant flooding is an enhanced oil recovery(EOR)method for recovering residual oil in the reservoir through mechanism of interfacial tension(IFT)reduction and wettability *** to toxicity and high cost associated with conventional surfactants,recent research has focussed on developing low-cost and environmentally benign ***,a low-cost green surfactant is extracted from Vernonia Amygdalina(VA)and appraised for EOR *** extracted surfactant was characterized using Fourier Transform Infrared(FTIR)and High-Pressure Liquid Chromatography(HPLC).The IFT of the synthesized surfactant at the oil-water interface was determined using Kruss ***,the foam stability of the synthesized surfactant was ***,the wettability of the saponin based natural surfactant(SBNS)at the rock-fluid interface was analysed using Dataphysics drop shape *** result revealed that SBNS(1 wt%concentration)stabilized foam for longer periods with half-life of 1100 ***,the synthesized surfactant was effective in lowering the IFT of oil-water interface from 18 mN/m to 0.97 mN/***,SBNS altered the wettability of sandstone cores to water-wetting condition by reducing the contact angle from 118.5° to 45.7°.Overall,SBNS exhibit excellent properties desirable for EOR and thereby recommended as supplementary alternative to conventional surfactants.

关键词： Enhanced oil recovery Surfactant Interfacial tension Wettability Saponin Foam

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Intermittent and short duration ultrasound in a simulated porous medium

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Petroleum 2019年第1期5卷 42-51页

作者： Augustine Agi radzuan junin Mohd Faddli Syamsul Aik Shye Chong Afeez Gbadamosi Department of Petroleum Engineering Faculty of Chemical and Energy EngineeringUniversiti Teknologi MalaysiaUTM Skudai81310 Johor BahruMalaysia

Ultrasound is an unconventional method used to recovery oil,despite the report on the use of this technique,the focus has always been on the continuous application of *** the continuous ultrasound has its own limitation of high cost of production and maintenance of equipment because of high energy *** this study,the use of short duration,intermittent ultrasound was investigated,and the result compared with the continuous *** effect of viscosity and intensity on both intermittent and continuous ultrasound was also investigated.A 2D micro-model placed inside an ultrasonic bath under an ultrasound radiation was used,a stereo microscope with the camera mounted at the top of the micro-model recorded the displacement *** snapshot of each time interval was used to give the estimate in percentage(%)of the residual oil left in the *** results show that,short duration and intermittent ultrasound can recover more oil compared with the application using continuous ultrasound and longer ***,the use of intermittent ultrasound as a green and cost-effective technique is herein proposed.

关键词： Ultrasonic Intermittent ultrasound Continuous ultrasound Micro-model Porous media Enhanced oil recovery

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Performance evaluation of nanosilica derived from agro-waste as lost circulation agent in water-based mud

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Petroleum Research 2023年第2期8卷 256-269页

作者： Augustine Agi Jeffrey O.Oseh Afeez Gbadamosi Cheo Kiew Fung radzuan junin Mohd Zaidi Jaafar Faculty of Chemical and Process Engineering Technology College of Engineering TechnologyUniversiti Malaysia Pahang26300GambangPahangMalaysia Institute for Oil and Gas(IFOG) Universiti Teknologi Malaysia81310Johor BahruMalaysia Federal University of Technology P.M.B.1526OwerriImo StateNigeria Department of Petroleum Engineering College of Petroleum and GeosciencesKing Fahd University of Petroleum and Minerals31261DhahranSaudi Arabia Department of Petroleum Engineering School of Chemical and Energy EngineeringFaculty of EngineeringUniversiti Teknologi Malaysia81310 Johor BahruMalaysia

Seepage or loss of the mix-water from the drilling muds into the porous and permeable formations is a common problem during drilling *** drilling mud design requires a good knowledge of sealing integrity and all the factors influencing the mud to bridge through fractures or pore throat of exposed *** circulation materials(LCMs)are commonly introduced into the drilling mud to prevent or minimize filtrate *** study investigates silica nanoparticle(SNP)derived from rice husk(RH)termed RH-SNP using the wet-milling method as an LCM inwater-based mud(WBM).The impact of the RH-SNP in the enhancement of rheology and filtrate loss control properties of WBM was ***,the sealing integrity of the RH-SNP in a 1 mm and 2 mm simulated fracture for 7 min was determined using a stainless-steel slotted filter *** performance of the developed RH-SNP was compared with the widely applied *** synthesized RH-SNP at amount of 2.0 wt% significantly enhanced the yield point and plastic viscosity of the WBM by 75% and 386%,respectively,and minimized the fluid loss of the WBM by 47% at 80°*** enhancement is due to the particles ability to spread and interact efficiently with the *** the use of 1 mm and 2 mm simulated fracture for 7 min,the mud loss volume of the base mud reduced by 50%,66.7%,86%,and 90%(for 1 mm)and 40%,65.7%,77.1%,and 80%(for 2 mm)with the inclusion of 0.5 wt%,1.0 wt%,1.5 wt%,and 2.0 wt% of RH-SNP,***,the results showed that RH-SNP enhanced the seal integrity of the drilling mud and was more resistant to deformation compared to the *** findings of this study can help for better understanding of the application of RH-SNP as a loss circulation agent owing to its superior ability to seal fractured formation compared with the often used nutshell.

关键词： Rice husk silica nanoparticles Loss circulation material Fractured formation Water based-mud Rheology

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The effect of nanosilica sizes in the presence of nonionic TX100 surfactant on CO_(2)foam flooding

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Petroleum Research 2022年第1期7卷 62-76页

作者： Suriatie Mat Yusuf radzuan junin Mohd Akhmal Muhamad Sidek Muhammad AManan Mohd Fazril Irfan Ahmad Fuad Mohd Zaidi Jaafar Effah Yahya Nor Roslina Rosli Department of Petroleum Engineering School of Chemical and Energy EngineeringFaculty of EngineeringUniversiti Teknologi Malaysia81310Johor BahruMalaysia Institute for Oil and Gas Universiti Teknologi Malaysia81310Johor BahruMalaysia School of Chemical Engineering College of EngineeringUniversiti Teknologi MARA40450 Shah AlamSelangorMalaysia

The aim of this research is to study the effect of hydrophilic silica nanoparticles,sizes as CO_(2) foam stabilizer in the presence of nonionic TX100 *** nanosilica sizes,15 and 70 nm,have been examined *** of TX100 on silica nanoparticles(nanosilica)was characterized by adsorption isotherm and surface tension measurement,while CO_(2) foams stability was quantified based on their foamability,foam stability,particle partitioning in the foams,and bubble *** show that direct contact of TX100 with nanosilica does altered the wettability of hydrophilic nanosilica surface,enable them to lengthen CO_(2) foams life at certain surfactant and nanoparticles *** 15 nm nanosilica,CO_(2) foam stability shows excellent performance at 0.1 and 0.5 wt%TX100 *** for 70 nm nanosilica,CO_(2) foam demonstrates longer lifetime at much lower TX100 concentration,0.01 wt%.Without the presence of TX100,CO_(2) foams exhibit undesirable lifetime performances for both nanosilica *** partitioning in CO_(2) foams structures demonstrate consistent relation with contact angle *** bubble sizes shows insignificant effect on CO_(2) foams *** the assists of nanosilica and TX100,enhanced oil recovery via CO_(2) foam injection succeeds in increasing oil production by 13e22%of original oil-in-place(OOIP).

关键词： Nanoparticle sizes Adsorption Nonionic surfactant TX100 surfactant Foamability CO_(2)foam stability CO_(2)foam flooding EOR

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Screening the synergy of sodium dodecylbenzenesulfonate and carboxymethyl cellulose for surfactant-polymer flooding

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Petroleum Research 2022年第3期7卷 308-317页

作者： Suriatie Mat Yusuf radzuan junin Mohd Akhmal Muhamad Sidek Augustine Agi Mohd Fazril Irfan Ahmad Fuad Nor Roslina Rosli Norazah Abd Rahman Effah Yahya Nor Adilah Muhamad Soffian Wong Muhammad Hazim Mustaza Department of Petroleum Engineering School of Chemical and Energy EngineeringFaculty of EngineeringUniversiti Teknologi Malaysia81310Johor BahruMalaysia Institute for Oil and Gas Universiti Teknologi Malaysia81310Johor BahruMalaysia School of Chemical Engineering College of EngineeringUniversiti Teknologi MARA40450Shah AlamSelangorMalaysia

Carboxymethyl cellulose(CMC)has emerged in oil and gas industries as a superior substitution to the conventional HPAM and xanthan gum(XG)for high viscosity polymer flooding *** this study,the combined effect of conventional surfactant,sodium dodecylbenzenesulfonate(SDBS)and CMC for potential surfactant-polymer(SP)flooding in enhanced oil recovery(EOR)has been ***,SDBS–CMC interaction and the functional groups present in CMC were appropriately *** presence of various C–O bonds signifies the existence of carboxymethyl group which greatly influence the rheological properties of CMC *** behaviour of SDBS–CMC was characterized by their viscosity,shear rate,solubilization,wettability,and surface *** flooding utilizing SDBS-CMC was performed and compared to commercial SDBS-XG SP *** results indicate several SDBS-CMC combinations are favourable for EOR *** viscosity shows direct relationship with CMC ***,at any given SDBS concentrations,significant increment was observed at 0.3 wt%and ***,the trend displayed inconclusive relation to SDBS *** of the SDBS-CMC combinations generate Winsor III emulsions particularly at CMC of 0.2 and 0.3 wt%,while Type II were observed in few *** CMC concentrations increased the contact angle,while gradual reductions were observed with SDBS *** gradual reduction in surface tension was highly influenced by the addition of CMC rather than SDBS.A novel combination of 0.3 wt%SDBS and 0.4 wt%CMC possessed an encouraging criterion in term of viscosity,solubilization,and surface tension reduction for EOR *** experiment from several SDBS-CMC combinations proved to recover additional oil ranging 16.4–20.2%of oil initially in place(OIIP).The trend in incremental oil recovery is similar to that of when utilising SDBS-XG.

关键词： Carboxymethyl cellulose Sodium dodecylbenzenesulfonate Enhanced oil recovery Surfactant-polymer flooding

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Application of Lignin from Oil Palm Empty Fruit Bunch （EFB） in Surfactant Formulation

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材料科学与工程（中英文版） 2010年第7期4卷 55-61页

作者： Wan Mohammad Kamal Bin Wan Jaafar Muhammad A. Manan Ahmad Kamal Idris radzuan junin Department of Petroleum Engineering Faculty of Chemical and Natural Resources Engineering Universiti Teknologi MalaysiaSkudai 81310 Johor Malaysia

The use of surfactant in enhanced oil recovery (EOR) can help to increase oil production by lowering the interfacial tension at oil-water interfaces. However, the costs of surfactants derived from petroleum-based source are very expensive. In this study, lignin was extracted from black liquor obtained by pulping oil palm empty fruit bunch (EFB) with NaOH. The properties of extracted lignin were characterized by Fourier Transform Infrared Spectroscopy (FTIR), Ultraviolet (UV) and Nuclear Magnetic Resonance (13C-NMR). The extracted lignin was used with amine and Sodium Dodecyl Sulfate (SDS) to form surfactant formulation for application in surfactant flooding. The stability and interfacial tension (IFT) of the formulation formed were determined. Based on the FTIR, UV and 13C-NMR results, there were no significant differences between extracted lignin and standard lignin. The results show that this formulation is stable and it can produce lower IFT compared to SDS and amine. This shows that lignin based surfactants have a good potential to be used in surfactant flooding.

关键词：表面活性剂驱木质素傅立叶变换红外光谱食物环境油棕应用十二烷基硫酸钠

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