准噶尔盆地西北缘车28井区三维地震资料解释

三维地震解释方法是一种能有效地将地质知识应用于地震解释的综合解释方法,它可以使解释人员从不同属性的三维数据体中快速获取各种信息。本文应用三维地震解释方法,结合钻井和测井资料,通过断层解释和地震反射层位的追踪解释,对车28井区油气藏的圈闭形态和特征进行了综合解释,取得了较好的效果。     

准噶尔盆地西北缘车排子地区火山岩岩相特征

综合运用岩屑录井、钻井取心、岩石化验等资料,结合区域构造背景和火山喷发环境,研究识别车排子地区火山岩岩性和岩相类型。研究表明,该地区火山岩呈中心式喷发,火山喷发中心分布在车24井、车30井、车23等井区,位于断层附近。研究区火山岩相发育三种类型：喷发相、溢流相和火山沉积相。火山岩相的研究对于石油的勘探开发具有重要指导意义。     

地震勘探资料解释研究

在二维和三维地震勘探中,不论时间剖面还是数据体,解释资料时都遵循着对比解释准则。解释成果与实际揭露的资料不符,主要是没有把握住反射波的特征点。当地下界面发生变化时,在时间剖面上一般都伴随着一些特殊波出现或者反射波发生畸变等现象,都是要值得注意和分析的要点。以大城勘查区二维地震勘探时间剖面解释出的反屋脊断层为例,利用好各种特殊波,为增强解释成果的可靠性提供了更完善的技术手段。     

地震资料综合解释中关于断层识别与精细解释的应用

本文介绍了断层识别及精细解释在断层识别中的意义,并分别介绍了,应用相干数据体控制断裂系统和识别小断层和断层的展布与组合,随着油田勘探开发的不断深入,断层精细解释不仅仅要满足勘探部署的需要,也要满足开发阶段对油藏精细认识的需要,准确识别断层位置对开发调整方案的编制具有十分重要的指导意义。     

复杂地区三维地震资料高效解释方法研究

针对复杂地区三维地震资料高效解释问题,本次研究结合我国各个区域地震勘探作业的现状,首先对地震解释中常见的问题进行系统分析,在此基础上,对复杂地区三维地震资料高效解释方法进行研究,为提高三维地震资料的处理解释精度奠定基础。研究表明：对三维地震资料进行合理解释的难度相对较大,对于我国的某些地区而言,地表和地下的情况都相对较为复杂,这使得地震资料处理和解释的难度提升,地震资料解释过程中的常见问题主要包括三个方面,分别是断层解释问题、层位解释问题以及三维可视化处理问题,需要针对断层问题以及层位问题,分别采取不同的解释方法,才能全面提高三维地震资料的解释效果。     

基于谱分解技术的三维地震资料层位标定以及断层解释

本文主要是应用地震资料结合计算机重新对研究区构造进行精细解释.针对本区的主要层位F1-1、F2和F2 y1进行构造层位分析.全区的三维地震资料偏移成果解释偏面积达75 km2,每个小层都通过手工追踪对比,精细程度达到4×8CDP的测网密度,即100m×200m,继续应用计算机进行内部插值到2×4CDP,经过每条测井线通...     

准噶尔盆地西北缘夏红北断裂成岩封闭作用研究

从机理上看,影响断层封闭性的主要因素包括:涂抹作用、碎裂作用及成岩作用。其中成岩作用是静止期断层逐渐封闭的主导因素,其类型主要包括:压实和充填作用、胶结作用,二者对断层的封闭性均具有建设性作用。根据地震、测井、录井及试油等基础资料,运用定量计算的方法,并结合岩心和岩石薄片观察,对准噶尔盆地西北缘夏红北断裂内成岩作用进行了研究。结果表明:由于夏红北断裂内压实和充填作用强烈,致使该断裂的封闭性较好,对油气具有良好的封堵作用。加之受胶结作用的影响,使断裂带与相邻围岩相比具有较低的孔隙度和渗透率。最后通过断裂带结构划分,结合岩心和岩石薄片观察,初步认为夏红北断裂内成岩胶结作用的影响范围约为50~70m。     

少数井控制的大区域二维地震解释方法——以渤中凹陷沙二、沙三段为例

在地震资料的解释过程中,层位解释和追踪是重要的基础工作之一,此文结合实际工区在工作站上运用一种新的二维地震资料解释方法实现了大区域层位解释,为后续工作打下了可靠的基础.     

松辽盆地汪南地区扶杨油层构造精细解释

在松辽盆地汪南地区范围内,运用近些年来实用的解释技术和方法,根据汪南地区的地质构造的特点,进行了精细的三维地震构造解释,从三维可视化技术,相干体技术等方面对研究区内的层位和断层进行了解释,进一步落实了扶杨油层组各段的小断层和微幅构造的分布特征,编制了研究区内扶杨油层组断层叠合图和圈闭构造叠合图,达到精细解释的目的。     

单项录井资料解释技术研究

油气水层解释评价是油田勘探开发系统工程中的一个重要环节,是油气勘探测试选层设计、储量计算的重要依据,也是油田开发调整井投产射孔方案设计的重要依据。本文就录井资料解释中的单项录井资料解释方法进行初步的分析和研究。     

南一区井震结合断层解释研究

随着油田开发进入高含水期,原有的基于井资料的断层解释已经不能满足油田开发对碡7i层描述的要求。采用井震结合断层解释方法,充分发挥井震资料各自的优势,提高断点组合率,使断层的空间组合和平面形态描述更加合理,提高断层描述精度。     

2D/2D nanohybrid of Ti3C2 MXene/WO3 photocatalytic membranes for efficient water purification

Photocatalytic membrane is attracting a great deal of current attention for water decontamination by taking the full advantage of photocatalysis and membrane separation. Herein, the well-defined WO₃ nanoplates are homogeneously dispersed onto the surface of multilayer Ti₃C₂ MXene to create a novel 2D/2D nanohybrid with various Ti₃C₂ contents (3–7 wt%) through a facile and cost-effective approach, and then photocatalytic membrane system is developed by anchoring these heterostructured-photocatalysts on polyvinylidene fluoride (PVDF) membrane by means of vacuum filtration. Ti₃C₂/WO₃/PVDF photocatalytic membranes exhibit enhanced RhB degradation and cyclability, alongside with refreshing behavior under visible-light illumination. We demonstrate that the excellent electrical conductivity of Ti₃C₂, the formation of built-in electric field and the large interface contact area between Ti₃C₂ and WO₃ synergetically promote the spatial charge separation and increase the surface reactive sites, which is responsible for boosting the photoreactivity and photostability. Besides, a significant high flux recovery of ～ 94% is obtained by 5 wt% Ti₃C₂/WO₃/PVDF membrane under visible light irradiation. This study opens possibilities to construct multi-functional and robust MXenes-based photocatalytic membrane for long-term water purification.     

Optimization of Photoreaction for the Production of Vitamin D2

The photochemical formation of vitamin D₂ (VD₂) is complicated, and optimization is essential for commercial production. An optimization methodology is introduced for investigating the factors influencing highly effective production of VD₂. For this research, the irradiation time and the initial concentration of ergosterol (C_E) were fully considered as the significant factors to simulate in the predictive models developed using SPSS and MATLAB software. The data obtained from the designed experiments were fit as two variable equations and their relationships were plotted as three‐dimensional surfaces. The model has a quite satisfactory coefficient (R² > 0.99). The best conditions observed were: C_E = 1.09 g/dm³ and an irradiation time of 64.5 min, while the yield of pre‐vitamin D₂ (P) reached a maximum of 45.83 %. Three experiments were performed and an average yield 45.93 % was obtained. The yield obtained could be compared with the predicted yield satisfactorily.     

Evaluating Oxygen Tensions Related to Bone Marrow and Matrix for MSC Differentiation in 2D and 3D Biomimetic Lamellar Scaffolds

The physiological O₂ microenvironment of mesenchymal stem cells (MSCs) and osteoblasts and the dimensionality of a substrate are known to be important in regulating cell phenotype and function. By providing the physiologically normoxic environments of bone marrow (5%) and matrix (12%), we assessed their potential to maintain stemness, induce osteogenic differentiation, and enhance the material properties in the micropatterned collagen/silk fibroin scaffolds that were produced in 2D or 3D. Expression of osterix (OSX) and vascular endothelial growth factor A (VEGFA) was significantly enhanced in the 3D scaffold in all oxygen environments. At 21% O₂, OSX and VEGFA expressions in the 3D scaffold were respectively 13,200 and 270 times higher than those of the 2D scaffold. Markers for assessing stemness were significantly more pronounced on tissue culture polystyrene and 2D scaffold incubated at 5% O₂. At 21% O₂, we measured significant increases in ultimate tensile strength (p < 0.0001) and Young’s modulus (p = 0.003) of the 3D scaffold compared to the 2D scaffold, whilst 5% O₂ hindered the positive effect of cell seeding on tensile strength. In conclusion, we demonstrated that the 3D culture of MSCs in collagen/silk fibroin scaffolds provided biomimetic cues for bone progenitor cells toward differentiation and enhanced the tensile mechanical properties.     

Construction of highly efficient 0D/2D Bi2MoO6/g-C3N4 heterojunctions for visible-light-driven photodegradation of 1-naphthol

Photocatalytic degradation is an ecologically benign method of reducing organic contaminants in wastewater. To remove the pollutant 1-naphthol, highly efficient 0D/2D Bi₂MoO₆/g-C₃N₄ heterojunctions were successfully assembled by a one-step hydrothermal method, where zero-dimension (0D) Bi₂MoO₆ nanoparticles were firmly bonded to two-dimension (2D) g-C₃N₄ nanosheets. 0D/2D Bi₂MoO₆/g-C₃N₄ exhibited exceptional degradation efficiency for 1-naphthol with a removal rate of 81.5% after 60 min of visible light irradiation. The enhanced photocatalytic ability was attributed to the matched band structures and tightly connected heterojunctions, which effectively prevented the recombination of photogenerated carriers. Besides, the photodegradation mechanism was revealed by investigating the catalysts' crystal phase, morphology, physicochemical and optical properties. This work introduces a novel method for one-step preparation of 0D/2D photocatalysts and advances the utilization of photodegradation for organic pollutants.     

吸气剂法去除高纯D2中微量N2

电解重水制备D2中常含有微量杂质N2,为降低N2含量,选择锆铁钛吸气剂高温对N2进行脱除。采用脉冲放电氦离子化检测器的气相色谱仪对N2含量进行分析检测。试验结果表明:D2气中N2含量20×10-6时,该吸气剂可使N2含量降至3×10-6以下。     

三维地震技术在卫城油田开发中的应用前景

本文对三维地震技术在卫城油田应用四年来的效果进行了详细分析,在此基础上指出三维地震技术在卫城油田的应用前景,对指导卫城油田开发具有重要意义。     

Phase diagram of the system: Al2O3–ZrO2

The system Al₂O₃–ZrO₂ was studied by differential thermal analysis in inert atmosphere and in vacuum. The eutectic was located at 1866°C and 40% mass of ZrO₂. Zirconia solid solution at the eutectic temperature is up to 1.1±0.3% mass of Al₂O₃. Enthalpy of melting of this eutectic is 1080±90 J/g. Pure ZrO₂ transforms from monoclinic to tetragonal at 1162±7°C, but the saturated solid solution of ZrO₂, with 0.7±0.2% mass Al₂O₃ at this temperature, transforms at 1085±5°C. Inverse transitions occur with hysteresis correspondingly at 1055±5 and 995±5°C. Enthalpy of transformation of pure ZrO₂ from monoclinic to tetragonal phase is 42±5 J/g (5.2±0.6 J/mol) but only 30±5 J/g for a ZrO₂ saturated solid solution.     

Synthesis, 3D‐QSAR,and Structural Modeling of Benzolactam Derivatives with Binding Affinity for the D2 and D3 Receptors

A series of 37 benzolactam derivatives were synthesized, and their respective affinities for the dopamine D₂ and D₃ receptors evaluated. The relationships between structures and binding affinities were investigated using both ligand‐based (3D‐QSAR) and receptor‐based methods. The results revealed the importance of diverse structural features in explaining the differences in the observed affinities, such as the location of the benzolactam carbonyl oxygen, or the overall length of the compounds. The optimal values for such ligand properties are slightly different for the D₂ and D₃ receptors, even though the binding sites present a very high degree of homology. We explain these differences by the presence of a hydrogen bond network in the D₂ receptor which is absent in the D₃ receptor and limits the dimensions of the binding pocket, causing residues in helix 7 to become less accessible. The implications of these results for the design of more potent and selective benzolactam derivatives are presented and discussed.