1) sonic traveltime difference
声波差值
1.
his paper interpretes coal gasificaion strata by the methods of porosity difference,sonic traveltime difference, the ratio of space elastic modulus difference and resistivity ratio based on the depth, the thickness and the logging curve values of reservoirs have been determined.
本文在应用计算机对测井曲线进行分层的基础上，利用孔隙差异法、声波差值法、空间模量差比法和电阻率比值法逐层综合解释煤成气层，并对这几种方法在解释煤成气层时可能出现的问题进行了探讨。
2) interval transit time
声波时差
1.
A method for upper and down expulsion hydrocarbon amount of overpressured sourcerock by interval transit time;
基于声波时差的超压源岩上、下排烃分配量方法及其应用
2.
How to use well logging interval transit time curve to compute formation pressure;
如何用测井声波时差曲线计算地层压力
3.
Application of using interval transit time method to restore degradation amount in Erlian basin;
声波时差法恢复剥蚀量在二连盆地中的应用
3) acoustic time difference
声波时差
1.
In this paper, the mudstone acoustic time difference method and the vitrinite reflectance method are used to calculate the Lower Cretaceous denuded thickness in the Santanghu basin.
文中利用泥岩声波时差和镜质体反射率法计算了三塘湖盆地下白垩统的剥蚀量 ,两种方法得出的结果吻合较好。
2.
In this paper,we calculate the erosion amount of Tertiary-Cretaceous in Sanjiang Basin by mudstone and total acoustic time difference method and vitrinite reflectance method.
本文利用泥岩声波时差法和总声波时差法相结合,辅以镜质体反射率法,恢复了三江盆地白垩系—第三系地层剥蚀厚度。
4) acoustic travel time
声波时差
1.
As propagation velocity of acoustic wave in rocks is closely related with rock properties, porosity and properties of fluids in pores, acoustic travel time anomaly in fault rock can be used to determine the dynamic properties of faults.
通过对东营凹陷的砂泥岩和其间断层岩的声波时差随深度变化特征及其相互间关系研究,进一步揭示张性断层声波时差异常的变化幅度和异常范围与断层埋藏深度有关。
2.
By using the acoustic travel time(AC) data,other test data and variable scale fractal techniques,the distribution of natural fractures in Chang 4+521-2 reservoirs of Yuan 48 wellblock in Tiebiancheng oilfield was predicted,and the relationship between the fracture development degree and initial deliverability of oil wells was also discussed.
利用声波时差(AC)数据与其他测井资料,运用分形几何中的变尺度分析技术,预测了长庆铁边城油田元48井区长4+521-2储层的天然裂缝分布,并探讨了裂缝发育程度与油井初期产能的关系。
5) acoustic interval transit time
声波时差
1.
A method for deriving rock diffusion coefficient from acoustic interval transit times;
利用声波时差资料研究岩石扩散系数的方法
2.
Estimation of comprehensive gas diffusion coefficient of a sandstone and mudstone combination bv acoustic interval transit time.;
声波时差资料在天然气综合扩散系数预测中的应用
3.
Nonlinear mapping between the characteristic parameters of borehole side seismic trace and acoustic interval transit times is made by using neural network, then acoustic logging curve under borehole bottom may be obtained through extrapolation to predict formation pressure under borehole bottom by using seismic and logging data.
通过提取井旁地震道的特征参数 ,利用神经网络建立其与测井声波时差的非线性映射 ,进而外推井底以下声波曲线 ,从而实现地震、测井联合预测井底以下的地层压力。
6) acoustic transit time
声波时差
1.
A method for deriving abnormal gas concentration in barrier from acoustic transit time data, and its application;
利用声波时差资料求取烃盖层异常含气浓度的方法及其应用
2.
there is a close relation between acoustic transit time value and muclstone compaction properties.
声波时差与泥岩压实特性有密切的相关关系,在不同的压实条件下,可以运用声波时差与储层流体压力的关系,计算储层的流体压力,储层流体势可以用Hubbtert公式计算。
3.
Ordovician stratigraphic erosion thickness of 11 wells was comprehensively calculated using acoustic transit times,vitrinite reflectances and deposition rates according to the geological data of eastern Tarimu Basin.
针对塔东地区实际地质资料和低勘探程度的特点,应用声波时差、镜质体反射率、沉积速率等多种综合方法,计算11口钻井的奥陶系剥蚀量。
补充资料：差值傅里叶法
分子式：
CAS号：
性质：在晶体结构分析中广泛应用的一种技巧。用它可在扣除先解析出已知原子坐标的基础上不断搜索待解析、未知原子的空间位置。设|F′c|与φ′相应为根据已知重原子或部分原子或非氢原子的坐标算得的结构因子模与位相的计算值，|FO|是结构因子模的实测值，则差值电子密度函数△ρ按下式进行计算由△ρ傅里叶级数的计算结果中可导出已知原子以外的原子坐标信息。因上式中傅里叶系数与结构因子模实测值与计算值的差值相关，故称作差值傅里叶法。
CAS号：
性质：在晶体结构分析中广泛应用的一种技巧。用它可在扣除先解析出已知原子坐标的基础上不断搜索待解析、未知原子的空间位置。设|F′c|与φ′相应为根据已知重原子或部分原子或非氢原子的坐标算得的结构因子模与位相的计算值，|FO|是结构因子模的实测值，则差值电子密度函数△ρ按下式进行计算由△ρ傅里叶级数的计算结果中可导出已知原子以外的原子坐标信息。因上式中傅里叶系数与结构因子模实测值与计算值的差值相关，故称作差值傅里叶法。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条