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low wave impedance
相关语句
  低波阻抗
    Four low wave impedance intervals are identified which correspond to the following 4 reservoir intervals: (1) 3150-3170m, log interpreted water-and oil-bearing interval in Peng xl2 well;
    这4个低波阻抗段分别对应的储层段为:(1)3150~3170m井段,为蓬xl2井测井解释的含水、油层段;
短句来源
    1. Utilizing the comprehensive research of geology, log well, seimsmology we thought, jialingjiang group semismology respond characteristic show as the low wave impedance mainly.
    1.利用地质,测井,地震的综合研究认为,嘉陵江组储层的地震响应特征主要表现为低波阻抗特征。
短句来源
    So it is of multiple solubility to predict the gas bearing san ds tone only by use of the low wave impedance,because both the gas bearing sandsto n e and the mudstone have the low wave impedance.
    泥岩表现为高伽玛和低波阻抗特征 ,这样含气砂岩与泥岩均有低波阻抗特征 ,故仅用低波阻抗来预测含气砂岩则具有多解性。
短句来源
    Analyzing well logging, seismic and geologic data in the studied area indicates that the logging response modes of an oil-bearing sandbody are low wave impedance, mid-low gamma ray and mid-high resistivity, its seismic response is low frequency and high amplitude, its sedimentary facies is mainly a delta frontal channel mouth bar.
    对研究区测井、地震和地质资料分析表明,含气砂体的测井响应模式为低波阻抗、中低伽马、中高电阻率,其地震响应为低频强振幅,沉积相主要为三角洲前缘河口砂坝。
短句来源
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  low wave impedance
There is no radiation of acoustic waves into the gas fill because the gas has a very low wave impedance.
      
A small magnetic loop sets up a primarily magnetic field and therefore leads to low wave impedance close to the antenna.
      


According to log data it is known that the gas bearing sandsto ne in Penglaizhen Formation in Baimamiao structure in West Sichuan shows low natural gamma and low wave impedance,however the tight sandstone low n atural gamma and high wave impedance and the mudstone high natural gamma and low wave impedance.So it is of multiple solubility to predict the gas bearing san ds tone only by use of the low wave impedance,because both the gas bearing sandsto n e and...

According to log data it is known that the gas bearing sandsto ne in Penglaizhen Formation in Baimamiao structure in West Sichuan shows low natural gamma and low wave impedance,however the tight sandstone low n atural gamma and high wave impedance and the mudstone high natural gamma and low wave impedance.So it is of multiple solubility to predict the gas bearing san ds tone only by use of the low wave impedance,because both the gas bearing sandsto n e and the mudstone have the low wave impedance.Therefore the prediction of sands tone was firstly finished by the inversion of natural gamma,thus making the mud stone with high natural gamma be eliminated,then the gas potential of the sandst one could be predicted with wave impedance,so as to realize the prediction of ga s bearing sandstone.A good geologic result has been achieved through the resear c h on the prediction of the gas bearing sandbodies in Penglaizhen Formation in B a imamiao structure in West Sichuan,which is of important significance of guiding the oil and gas exploration and development in this region.

从测井曲线可知 ,川西白马庙蓬莱镇组含气砂岩表现了低伽玛和低波阻抗特征 ,而致密砂体则表现为低伽玛、高波阻抗特征。泥岩表现为高伽玛和低波阻抗特征 ,这样含气砂岩与泥岩均有低波阻抗特征 ,故仅用低波阻抗来预测含气砂岩则具有多解性。因此 ,我们采取了先反演自然伽玛来解决砂岩的预测问题 ,也就是将高伽玛的泥岩排除了 ,然后再用波阻抗来对砂岩的含气性进行预测 ,以实现含气砂体的预测。通过开展川西白马庙地区蓬莱镇组含气砂体的预测研究 ,取得了较好的地质成果 ,对该地区的勘探开发具有重要的指导意义。

Analyzing well logging, seismic and geologic data in the studied area indicates that the logging response modes of an oil-bearing sandbody are low wave impedance, mid-low gamma ray and mid-high resistivity, its seismic response is low frequency and high amplitude, its sedimentary facies is mainly a delta frontal channel mouth bar. Through analyzing the wave impedance data volume obtained from logging constrain seismic inversion, a model of gas-bearing sandbody is predicted, which...

Analyzing well logging, seismic and geologic data in the studied area indicates that the logging response modes of an oil-bearing sandbody are low wave impedance, mid-low gamma ray and mid-high resistivity, its seismic response is low frequency and high amplitude, its sedimentary facies is mainly a delta frontal channel mouth bar. Through analyzing the wave impedance data volume obtained from logging constrain seismic inversion, a model of gas-bearing sandbody is predicted, which is used as conditions of facies control, a reservoir physical parameter model is established by using sequence Gauss collocated cokriging simulation on the basis of analyzing variation function of porosity data. The reliabilities of a sandbody distribution model and a physical parameter model established with the simulation method are proven in production.

对研究区测井、地震和地质资料分析表明,含气砂体的测井响应模式为低波阻抗、中低伽马、中高电阻率,其地震响应为低频强振幅,沉积相主要为三角洲前缘河口砂坝。通过对测井约束地震反演得到的波阻抗数据体分析,预测出含气砂体分布模型;然后以此含气砂体模型为相控制条件,在分析孔隙度数据变差函数基础上,利用序贯高斯同位协克里金模拟方法建立了储层物性参数模型。生产开发实践验证了该方法建立的砂体分布模型和物性参数模型的可靠性。

Velocity contrast of sandstone and mudstone and the corresponding seismic reflecting horizons in the targeted Guantao Formation are analyzed based on core and lithofacies data and velocity statistics. Through detailed velocity study and seismogeological model analysis, as well as multiple wavelet extractions and repeated and detailed calibrations, the conventional geologic interface profile is inverted into a stratigraphic-lithologic profile. Four low wave impedance intervals are identified which correspond...

Velocity contrast of sandstone and mudstone and the corresponding seismic reflecting horizons in the targeted Guantao Formation are analyzed based on core and lithofacies data and velocity statistics. Through detailed velocity study and seismogeological model analysis, as well as multiple wavelet extractions and repeated and detailed calibrations, the conventional geologic interface profile is inverted into a stratigraphic-lithologic profile. Four low wave impedance intervals are identified which correspond to the following 4 reservoir intervals: (1) 3150-3170m, log interpreted water-and oil-bearing interval in Peng xl2 well; (2) 3215-3250m, log interpreted main oil-bearing interval in Peng xl2 well; (3) 3300-3400m, log interpreted water-oil-bearing interval in Peng xl2 well; (4) 3465-3495m, log interpreted water-oil-bearing interval in Peng xl2 well.

根据岩心、岩相资料和速度统计,对目的层馆陶组砂泥岩速度差异及其相应的地震反射界面进行了分析。通过精细的速度研究与地震地质模型分析,以及多次子波提取与反复细致标定,将常规地质界面型剖面反演成地层岩性型剖面,得到了4个低波阻抗段。这4个低波阻抗段分别对应的储层段为:(1)3150~3170m井段,为蓬xl2井测井解释的含水、油层段;(2)3215~3250m井段,为蓬xl2井测井解释的主要含油层段;(3)3300~3400m井段,为蓬xl2井测井解释的含油水层段;(4)3465~3495m井段,为蓬莱xl2井测井解释的含油水层段。

 
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