利用侵入岩地震相变化特征识别断层

苏北盆地高邮凹陷北斜坡侵入岩岩性为辉绿岩,辉绿岩与砂泥质围岩间通常存在明显的波阻抗差,在地震剖面上常表现为中低频、强振幅,连续性好的反射特征,导致侵入岩强反射干扰了围岩的反射,造成层位和断层识别困难,但利用其反射特征变化的信息仍可以识别断层。本文通过研究晚期侵入沉积地层的火成岩岩体变化模式和地震反射特征,结合地震正演模拟,建立了侵入岩地震相特征与断层关系的六种典型对应模式,即弯折相与倾向变化对应、错断相与岩体中断对应、陡倾相与断面侵入对应、变频相与厚度变化对应、分叉相与岩体分叉对应、终止相与岩体终止对应,利用该模式结合其他方法进行断层判别,提高了构造解释精度,并且在高邮凹陷北斜坡取得了很好的油气勘探效果。     

AVO 属性技术在含气砂岩储层预测中的应用

为预测盐城凹陷含气砂岩的分布范围,利用AVO正演模拟和流体替换等工作取得本地区含气储层的AVO响应特征,并通过该地区关键产气井实际地震资料的AVO分析结果进行验证,再以Zoeppritz方程的Shuey近似表达式为基础,计算出P（截距）和G（梯度）等AVO属性,并通过PG属性进行含气储层的识别,刻画出该区含气砂岩横向和纵向展布特征,结果与实际情况相符。     

雅碲锌石Ca_3Zn_3(TeO_6)_2的合成和发光性能

通过高温固相反应法人工合成了稀土离子Eu3 掺杂的雅碲锌石Ca3Zn3(TeO6)2.运用X射线粉末衍射(XRD)、傅立叶转换红外光谱(FT-IR)及其扫描电子显微镜(SEM)对合成样品进行了结构表征.光致发光激发和发光光谱表明,Eu3 掺杂的Ca3Zn3(TeO6)2在611 nm处有强烈的红光发射,这种红发光不但可以被紫外光激发,而且也可以被波长395nm、465 nm和537 nm的可见光有效地激发,表明它可以很好地和目前常用紫外或蓝色发光二极管相匹配,使其成为一种潜在的人工合成红色发光矿物材料.同时,根据发光特征对Ca3Zn3(TeO6)2的结构进行了探讨.     

A blue luminescence glass-ceramics of Eu^2＋ ions activated Li2O-BaO-B2O3

New blue luminescence glass-ceramic samples were prepared in air by annealing of the Eu^3＋-doped Li2O-BaO-B2O3 glass. The as-made glass samples only showed the sharp emission peaks assigned to the transitions of 5^D0-7^Fj （J=0, 1, 2, 3, 4） of Eu^3＋ ions. The glass-ceramic samples gave a strong and broad emission band peaking at about 382 nm ascribed to the 5d-4f transition of Eu^2＋ ions. The optical properties such as excitation and emission spectra, and the decay time of the Eu^2＋ ions were investigated in the glasses or the glass-ceramics samples. The X-ray diffraction pattern showed that LiBan9O15 might be demonstrated to be the crystallites in the glass-ceramic, which contributed to the blue luminescence. SEM micrograph was investigated on the glass-ceramic samples obtained by crystallization of the glass matrix resulting in a mixture of poly-crystals.     

地震属性技术在页岩裂缝预测中的应用

从地震数据中提取的地震属性可用来描述储层特征和探测地下异常体。在YC凹陷NY次凹,通过分析过井地震剖面地震响应特征及正演模拟对比验证,确定不同层系对裂缝敏感的属性,达到属性优选的目的,从而有针对性地选择相应属性进行裂缝预测。利用该方法,对古近系阜宁组二段(E1f2)的两个亚段3+4亚段(E1f32+4)和5亚段(E1f52)分别选择了均方根振幅属性和波形聚类属性、相干属性进行裂缝预测,取得了很好的效果。     

Optical properties of Eu^2＋-doped strontium borate glasses containing F-and Li^＋ ions

In this experiment, strontium borate glasses were prepared using the conventional quenching method in air atmosphere. Optical absorption, photoluminescence excitation and emission spectra, X-ray excited luminescence （XEL）, and luminescence decay curve of the as-prepared glasses were investigated at room temperature. The as-prepared glasses had two kinds of Eu ions, i.e., Eu^2＋ and Eu^2＋. Compared with the reported results of strontium borate glasses, Eu^2＋ luminescence was enhanced in the studied strontium borate glasses coprepared with F^- and Li^＋ ions. The coexisting of Li^＋ or F^- in the borate glasses could create more negative defect Vsr″ and stabilize Eu^2＋ ions, which might act as donor of electrons; For the F^- doping, the new center of B（O, F）4 （or BO3F） and BO2F2 units could be considered to be the distorted （BO4）, which were needed as a rigid framework to stabilize the divalent rare earth ions.