Based on the relationship between sand porosity and wave impedance, we can use the sand wave impedance to estimate the sand porosity.
根据砂岩孔隙度与波阻抗之间的函数关系，可以利用砂岩波阻抗估算砂岩孔隙度。
The sand body at Shihezi formation of Tabamiao area in Erdos basin is mainly plain and fluvial deposits with characteristics of low porosity, low permeability and high impedance.
鄂尔多斯盆地塔巴庙工区下石盒子组砂岩体主要属平原分流河道沉积，具有低孔、低渗和高阻抗特征。
The sealing capability of cap rocks is closely related to the porosity, permeability, the ratio of sand to mud contents and fluid pressure of the rocks.
盖层封闭的最常见形式是毛管封闭和压力封闭。这两种形式的封闭能力与岩层的孔隙度、渗透率、砂泥岩含量比以及流体压力有密切关系。
The cooling rate is faster in chromite sand mold, but also causes more porosity in castings.
铬砂制作的砂模可让铸件有较快的冷却速率，但也产生较多的微孔隙。
Heavy oil reservoir of loose sand is of large porosity, loose cementation and higher clay content.
疏松砂岩稠油油藏孔隙度大，胶结疏松，粘土矿物含量偏高。
Oolite lime sand packs naturally with 40% porosity because the particles are essentially spheroides.
自然堆积的灰质鲕粒砂具有40％的孔隙度，因为其颗粒其本上都是球状的。
Oolite lime sand packs naturally with 40 % porosity because the particles are essentially spheroides.
自然堆积的灰质鲕粒砂具有40%的孔隙度，因为其颗粒其本上都是球状的。
Log data may be used for calculating shaly capping beds parameters such as thickness, displacement pressure, total porosity, effective porosity, permeability, sand content, etc.
介绍了根据测井资料可综合评价泥质盖层的参数，包括厚度、排替压力、盖层总孔隙度、有效孔隙度、渗透率、含砂量等。
The common defects of the housing casting include cracks, sand drop, slag inclusion, shrinkage porosity and rough grain, etc.
机架的常见缺陷有裂纹、掉砂、夹渣、缩孔缩松和晶粒粗大等。
When the sand grout contains limestone powder, the limestone powder can improve the pore structure and decrease the porosity of the sand grout because of its filling effect.
当砂浆含有石灰石粉时，由于石灰石粉具有填充效应，能有效地改善砂浆的孔结构，降低其孔隙率。
Batch production shows there are no shrinkage cavity and porosity in casting, and no blowholes and sand inclusions on the top surface. The yield of the casting is 81%.
经批量生产验证，铸件内无缩孔、缩松缺陷，上表面无渣孔、气孔缺陷，工艺出品率81%。
The horizontal prediction of thickness and porosity of a sand member in a region was made by applying multivariate statistical method to seismic attribute, drilling and logging data.
本文应用多元统计方法，利用地震属性并辅以钻井、测井资料对某地区某层段砂岩的厚度和孔隙率进行了横向预测。
The main lithology is clay, sub-clay, fine sand, fine porosity, the mineral components of rich fluoride provides an abundance of matter resources.
岩性主要为黏土、亚黏土、细砂，孔隙小，富含氟的矿物成分为地下水中高氟提供了丰富的物质来源。
Due to deep reservoir bed, Anpeng Oilfield is a typical sand oil and gas reservoir with high temperature, high pressure, low porosity and poor permeability.
安棚油田储层埋藏深，属于典型的高温高压特低孔特低渗裂缝砂岩油气藏。
The reasons resulting in the shrinkage porosity, gas-hole and impacted sand in bronze castings were analyzed.
分析了锡青铜叶轮铸件出现的缩孔、气孔、冲砂等缺陷的原因。
Silt, clay and adobe often form solid barriers that shed water instead of absorbing, so consider adding sand, mulch or other absorption enhancing materials to low-porosity ground.
淤泥，粘土和土坯往往是固体流，而不是障碍，吸收水，因此考虑在沙子，覆盖或其他材料，以增强吸收低孔隙度地面。
Mean permeability of massive bedding fine shingle lithofacies and mean porosity of reverse cross bedding fine sand lithofacies are the biggest in all of lithofacies.
块状层理细砾相的平均渗透率最大，反向交错层理细沙相的平均孔隙度最大。
On basis of establishing the dosage range of sand-consolidation agents and porosity-increasing agents, CA-CC and BS-BZ as the main components of two sand-consolidation agents were selected.
在对固砂剂和扩孔剂用量范围进行初步确定的基础上，筛选了以CA—CC和BS—BZ为原料的两种固砂剂组成。
The pictures of core scanning by electron microscope indicate that there are good porosity and connectivity in the consolidated core. This sand control agent adheres to rock surf…
该防砂剂吸附于岩石表面使得岩石表面的润湿性向亲水方向变化，导致岩心的油相渗透率增加和水相渗透率减小，说明该防砂剂不但具有防砂作用还具有堵水功能。
The pictures of core scanning by electron microscope indicate that there are good porosity and connectivity in the consolidated core. This sand control agent adheres to rock surf…
该防砂剂吸附于岩石表面使得岩石表面的润湿性向亲水方向变化，导致岩心的油相渗透率增加和水相渗透率减小，说明该防砂剂不但具有防砂作用还具有堵水功能。
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