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高盐高温油藏低失水率两亲聚合物凝胶研究

高盐高温油藏低失水率两亲聚合物凝胶研究

作者： muhammad waseem Iqbal 中国石油大学(华东)

学位级别：硕士

聚合物凝胶作为稳油控水调剖剂,可以显著降低油田产水量。研究表明聚合物凝胶可以有效封堵高渗地层,但常规聚合物凝胶在高温高盐条件下易发生热降解及脱水现象,因此封堵效果不佳。相比于常规HPAM凝胶,两亲聚合物可以在更低浓度下获得更... 详细信息

聚合物凝胶作为稳油控水调剖剂,可以显著降低油田产水量。研究表明聚合物凝胶可以有效封堵高渗地层,但常规聚合物凝胶在高温高盐条件下易发生热降解及脱水现象,因此封堵效果不佳。相比于常规HPAM凝胶,两亲聚合物可以在更低浓度下获得更好的耐盐性能,因此,对于两亲聚合物调剖剂的研究具有重要意义。本文以两亲聚合物与有机Cr为原料,制备了一种耐温耐盐低脱水率有机凝胶。并通过瓶试法、流变仪、真空突破法和填砂管实验确定两亲聚合物凝胶的成胶时间、成胶强度代码、脱水率、粘弹性、凝胶强度、突破压力和封堵率。分析了聚合物浓度、交联剂浓度、矿化度、温度以及p H对成胶时间、成胶强度以及凝胶稳定性的影响;并根据凝胶的封堵效率和耐冲刷性提出了成胶机理。结果表明,低脱水率凝胶的最佳配方为:3000 mg/L AP-P4+0.3 wt.%有机Cr。在80000 mg/L Na Cl、85?C条件下,该体系成胶时间为4 h,凝胶强度达到F级、凝胶强度为0.037 MPa,80天后体积稳定性可达91%;并且凝胶强度及粘弹性随着聚合物浓度、交联剂浓度、矿化度、p H值(5.5-8.5)的增加而增加;驱替实验表明,凝胶在高、中、低渗透率填砂管中的封堵率分别为98.4%、97.7%及93.2%,并且均具有较高的突破压力。因此,低脱水率两亲聚合物凝胶在高温高盐油藏具有较好的适用性。

关键词：两亲聚合物凝胶有机Cr3+ 高盐高温低脱水收缩体相稳定性封堵率

Flow injection spectrophotometric determination of vitamin E in pharmaceuticals,milk powder and blood serum using potassium ferricyanide-Fe(Ⅲ) detection system

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Chinese Chemical Letters 2010年第6期21卷 712-715页

作者： Saima Jadoon Amir waseem Mohammad Yaqoob Abdul Nabi Department of Chemistry University of BalochistanQuettaPakistan

A simple and sensitive flow injection spectrophotometric method is reported for the determination of vitamin E using potassium ferricyanide-Fe(Ⅲ) detection *** the presence of vitamin E,Fe(Ⅲ)/ferricyanide *** in situ reduced ions are then reacted with unreduced portion of ferricyanide/Fe(Ⅲ) to make soluble Prussian blue,which is monitored at absorption wavelength of 735 *** calibration graph was obtained in the concentration range of 0.1-40μg mL^(-1).The relative standard deviations (n=4) were in the range of 1.1-3.6%,with limits of detection(3 s blank) of 0.04μg mL^(-1).The proposed method allowed 12 injections h^(-1).The method is applied to determine vitamin E in pharmaceuticals,infant milk and blood serum samples using hexane extraction with the recoveries in the range of 93±3 to 97.5±4%.The method is validated using certified reference materials SRM 968c for blood serum samples.

关键词： Flow injection Spectrophotometry Vitamin E Prussian blue Fe(III) Ferricyanide Pharmaceuticals Blood serum

Cyber Secure Framework for Smart Containers Based on Novel Hybrid DTLS Protocol

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Computer Systems Science & Engineering 2022年第12期43卷 1297-1313页

作者： waseem Ullah Khan Safdar Nawaz Khan Marwat Salman Ahmed Department of Computer Systems Engineering University of Engineering and Technology PeshawarPeshawar25120Pakistan

The Internet of Things (IoTs) is apace growing, billions of IoT devicesare connected to the Internet which communicate and exchange data among eachother. Applications of IoT can be found in many fields of engineering and sciencessuch as healthcare, traffic, agriculture, oil and gas industries, and logistics. Inlogistics, the products which are to be transported may be sensitive and perishable, and require controlled environment. Most of the commercially availablelogistic containers are not integrated with IoT devices to provide controlled environment parameters inside the container and to transmit data to a remote *** necessitates the need for designing and fabricating IoT based smart containers. Due to constrained nature of IoT devices, these are prone to different cybersecurity attacks such as Denial of Service (DoS), Man in Middle (MITM) andReplay. Therefore, designing efficient cyber security framework are required forsmart container. The Datagram Transport Layer Security (DTLS) Protocol hasemerged as the de facto standard for securing communication in IoT ***, it is unable to minimize cyber security attacks such as Denial of Serviceand Distributed Denial of Service (DDoS) during the handshake process. Themain contribution of this paper is to design a cyber secure framework by implementing novel hybrid DTLS protocol in smart container which can efficientlyminimize the effects of cyber attacks during handshake process. The performanceof our proposed framework is evaluated in terms of energy efficiency, handshaketime, throughput and packet delivery ratio. Moreover, the proposed framework istested in IoT based smart containers. The proposed framework decreases handshake time more than 9% and saves 11% of energy efficiency for transmissionin compare of the standard DTLS, while increases packet delivery ratio andthroughput by 83% and 87% respectively.

关键词： Logistic container logistics security cyber security perishable products monitoring

Analytical methods for nano-bio interface interactions

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Science China Chemistry 2016年第11期59卷 1467-1478页

作者： Jing Wang waseem Akthar Quershi Yiye Li Jianxun Xu Guangjun Nie CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety CAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology

Knowledge on the interactions between engineered nanomaterials(ENMs) and biological systems is critical both for the assessment of biological effects of ENMs and for the rational design of ENM-based products. However, probing the events that occur at the nano-bio interface remains extremely challenging due to their complex and dynamic nature. So far, the understanding of mechanisms underlying nano-bio interactions has been mainly limited by the lack of proper analytical techniques with sufficient sensitivity, selectivity and resolution for characterization of nano-bio interface events. Moreover, many classic bioanalytical methods are not suitable for direct measurement of nano-bio interface interactions. These have made establishing analytical methodologies for systematic and comprehensive study of nano-bio interface one of the most focused areas in nanobiology. In this review we have discussed some representative developments regarding analytical techniques for nano-bio interface characterization, including the improvements of traditional methods and the emergence of powerful new technologies. These developments have allowed ultrasensitive, real-time analysis of interactions between ENMs and biomolecules, transformations of ENMs in biological environment, and impacts of ENMs on living systems on molecular or cellular level.

关键词： engineered nanomaterial nano-bio interface nano-bio interaction analytical methods protein corona synchrotron radiation

Some Results on Type 2 Degenerate Poly-Fubini Polynomials and Numbers

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Computer Modeling in Engineering & Sciences 2021年第11期129卷 1051-1073页

作者： Ghulam Muhiuddin waseem AKhan Abdulghani Muhyi Deena Al-Kadi Department of Mathematics University of TabukTabukSaudi Arabia Department of Mathematics and Natural Sciences Prince Mohammad Bin Fahd UniversityAl KhobarSaudi Arabia Department of Mathematics Hajjah UniversityHajjahYemen Department of Mathematics and Statistic College of ScienceTaif UniversityP.O.Box 11099Taif 21944Saudi Arabia

In this paper,we introduce type 2 degenerate poly-Fubini polynomials and derive several interesting characteristics and *** addition,we define type 2 degenerate unipoly-Fubini polynomials and establish some certain ***,we give some relationships between degenerate unipoly polynomials and special numbers and *** the last section,certain beautiful zeros and graphical representations of type 2 degenerate poly-Fubini polynomials are shown.

关键词： Type 2 degenerate poly-Fubini polynomials modified degenerate polylogarithm function unipoly functions

Machine-learning structural and electronic properties of metal halide perovskites using a hierarchical convolutional neural network

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npj Computational Materials 2020年第1期6卷 1368-1374页

作者： Wissam A.Saidi waseem Shadid Ivano E.Castelli Department of Mechanical Engineering and Materials Science University of PittsburghPittsburghPA 15261USA Department of System and Information Systems The University of North Carolina CharlotteCharlotteNCUSA Department of Energy Conversion and Storage Technical University of DenmarkDK-2800 KgsLyngbyDenmark

The development of statistical tools based on machine learning(ML)and deep networks is actively sought for materials design *** structure-property relationships can be accurately determined using quantum mechanical methods,these firstprinciples calculations are computationally demanding,limiting their use in screening a large set of candidate ***,we use convolutional neural networks to develop a predictive model for the electronic properties of metal halide perovskites(MHPs)that have a billions-range materials design *** show that a well-designed hierarchical ML approach has a higher fidelity in predicting properties of the MHPs compared to straight-forward methods.

关键词： neural electronic halide

Tungsten incorporated mobil-type eleven zeolite membranes: Facile synthesis and tuneable wettability for highly efficient separation of oil/water mixtures

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中国化学工程学报:英文版 2023年第8期60卷 242-252页

作者： Hammad Saulat Jianhua Yang Tao Yan waseem Raza Wensen Song Gaohong He State Key Laboratory of Fine Chemicals Institute of Adsorption and Inorganic MembraneDalian University of TechnologyDalian 116024China Panjin Institute of Industrial Technology Dalian University of TechnologyPanjin 124221China Institute of Advance Study Shenzhen UniversityShenzhen 518060China

Tungsten (W) incorporated mobil-type eleven (MEL) zeolite membrane (referred to as W-MEL membrane) with high separation performance was firstly explored for the separation of oil/water mixtures under the influence of gravity.W-MEL membranes were grown on stainless steel (SS) meshes through in-situ hydrothermal growth method facilitated with (3-aminopropyl)triethoxysilane (APTES) modification of stainless steel meshes,which promote the heterogeneous nucleation and crystal growth of W-MEL zeolites onto the mesh surface.W-MEL membranes were grown on different mesh size supports to investigate the effect of mesh size on the separation performance of the *** assynthesized W-MEL membrane supported on 500 mesh (25μm)(W-MEL-500) exhibit the hydrophilic nature with a water contact angle of 11.8°and delivers the best hexane/water mixture separation with a water flux and separation efficiency of 46247 L·m^(-2)·h^(-1)and 99.5%,*** wettability of W-MEL membranes was manipulated from hydrophilic to hydrophobic nature by chemically modifying with the fluorine-free compounds (hexadecyltrimethoxysilane (HDTMS) and dodecyltrimethoxysilane(DDTMS)) to achieve efficient oil-permselective separation of heavy oils from *** the hydrophobically modified W-MEL membranes,W-MEL-500-HDTMS having a water contact angle of146.4°delivers the best separation performance for dichloromethane/water mixtures with a constant oil flux and separation efficiency of 61490 L·m^(-2)·h^(-1)and 99.2%,respectively along with the stability tested up to 20 *** W-MEL-500-HDTMS and W-MEL-500-DDTMS membranes also exhibit similar separation performances for the separation of heavy oil from sea water along with a 20-fold lower corrosion rate in comparison with the bare stainless-steel mesh,indicating their excellent stability in *** to the reported zeolite membranes for oil/water separation,the as-synthesized and hydrophobically modified W-MEL membranes shows competiti

关键词： Corrosion Dodecyltrimethoxysilane Hexadecyltrimethoxysilane Membranes Oil/water separation Zeolite

Exploration prospects of oil and gas in the Northwestern part of the Offshore Indus Basin, Pakistan

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China Geology 2020年第4期3卷 633-642页

作者： Jian-ming Gong Jing Liao Jie Liang Bao-hua Lei Jian-wen Chen muhammad Khalid Syed waseem Haider Ming Meng Qingdao Institute of Marine Geology China Geological SurveyQingdao 266071China Laboratory for Marine Mineral Resources Pilot National Laboratory for Marine Science and TechnologyQingdao 266061China College of Earth Science and Engineering Shandong University of Science and TechnologyQingdao 266590China Pakistan Hydrographic Department 11 Liaquat Barracks Shahrae Faisal KARACHI-75530Pakistan National Institute of Oceanography St-47Block-1CliftonKarachiPakistan School of Ocean Sciences China University of Geosciences(Beijing)Beijing 100083China

Oil and gas resources are short in Pakistan and no commercially viable oil and gas sources have been yet discovered in its offshore areas up to *** this study,the onshore-offshore stratigraphic correlation and seismic data interpretation were conducted to determine the oil and gas resource potential in the Offshore Indus Basin,*** on the comprehensive analysis of the results and previous data,it is considered that the Cretaceous may widely exist and three sets of source rocks may be developed in the Offshore Indus *** presence of Miocene mudstones has been proven by drilling to be high-quality source rocks,while the Cretaceous and Paleocene–Eocene mudstones are potential source ***-lithologic traps are developed in the northwestern part of the basin affected by the strike-slip faults along Murray ***,the Cretaceous and Paleocene–Eocene source rocks are thick and are slightly affected by volcanic ***,it can be inferred that the northwestern part of Offshore Indus Basin enjoys good prospects of oil and gas resources.

关键词： Oil and gas Cretaceous Offshore Indus Basin Oil storage structure Oil and gas engineering Pakistan

Coherent passive optical network for 5G and beyond transport

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Optoelectronics Letters 2021年第9期17卷 546-551页

作者： waseem W.Shbair Fady I.El-Nahal KN Group Dublin D22 YP38Ireland Islamic University of Gaza Gaza P.O.Box 108Palestine

Building low-latency and high-capacity optical networks is vital for new high-speed cellular *** wavelength division multiplexing passive optical networks(WDM-PONs)are expected to play a key role in these *** this article,an overview of PON technologies for the 5 th generation(5 G)transport systems has been ***,a modified scheme based on coherent WDM-PON has been investigated using a dual polarization quadrature phase shift keying(DP-QPSK)*** aim of the scheme is to build a 1600 Gbit/s network that will be used in the construction of the transport architecture of 5 G and beyond cellular networks either in mobile front haul(MFH)or mobile back haul(MBH).The results indicate that the proposed scheme offers a promising solution for future 5 G transport systems.

关键词： passive network beyond