查询词典 sandstone

Evolution of rock joints into transfixion is described by the time series from strain-stress curves,and the state of joint system in sandstone is chaotic before its ultimate state.

形成岩石全应力应变曲线的时间序列反映了岩石内部节理裂隙趋向贯通的演化进程，砂岩节理裂隙系统在峰前阶段处于不同程度的混沌状态。

It is discovered through the research that there is a better regularity between the acoustic wave traveltime, electrical resistivity of the sandstone and burial depth.

压力封存箱的封隔作用有效地保护了砂岩的次生孔隙，同时在成藏过程中，酸性水对压力封存箱内部砂岩次生孔隙的形成十分有利。

The tuffaceous sandstone volume model needs to be established as the Nantun reservoir of Hailar Basin generally contains tuffaceous sandstones and the reservoir physical properties vary in different blocks.

针对海拉尔盆地南屯组储层普遍含有凝灰质，且储层物性变化大等特点，对凝灰质砂岩储层建立凝灰质砂岩体积模型。

The authors have made simulation experiments on the interactions of valcanic gas-hydrothermal solutions with subvolcanic-volcanic rocks (diaba- se, andesitic-tdff, a.ndesite and tuffaceous sandstone) based on field observa- tions of three iron ore deposits in volcanic rock areas of Cihai and Yamansu, Xinjiang and Huanggangliang, Inner Mongolia.

本文作者在火山岩地区的新疆磁海、雅满苏和内蒙黄岗梁三个铁矿床进行野外工作的基础上，模拟火山气热液与次火山岩-火山岩(辉绿岩、安山质凝灰岩、安山岩和凝灰质砂岩)相互作用。

The low-permeability rocks and micrite for modeling the crust of the overpressure system were broken under the action of overpressure fluid,while the sandstone for modeling the uncompacted belt of overpressure system was not broken.

在实验过程中，模拟超压系统&壳&的低渗透岩石—泥晶灰岩发生了破裂，而模拟超压系统&欠压实带&的高渗透砂岩却未发生破裂。

The lower permeability rocks-micrite and muddy siltstone which modeled the "crust" of overpressure system have been broken by overpressure fluid, while the sandstone modeled the "uncompacted belt" of overpressure system have been not broken.

在实验过程中，模拟超压系统&壳&的低渗透岩石—泥晶灰岩发生了破裂，而模拟超压系统&欠压实带&的高渗透砂岩却未发生破裂。

Hydraulic fracturing breccia can be joggled joint and the veins have clear fluid evidence. It is found that the fractures were developed in the crust around the uncompacted belt. Hydraulic fracturing experiments were conducted by using composite samples consisting of micrite and sandstone.

通过对大港滩海区沙一段下部岩心观察和薄片分析，识别出水力破裂角砾、砂岩脉、水力破裂裂缝及活化同沉积裂缝4种水力破裂作用产物，水力破裂角砾之间具有可拼合性，脉体具有明显流体作用痕迹；本区水力破裂发生于欠压实带周围的&壳&中。

The sandstone uranium deposit s occur in the coal-bearing leuco-clastic formation,which developed in Neogene basins and unconformably overlays the granitic basement.

以花岗质岩石为基底的晚第三纪盆地中堆积了浅色含煤碎屑岩建造，砂岩铀矿即产于其中。

Underbalance drilling is one of the effective methods for protecting the sandstone reservoir and corresponding reservoir protection measures as underbalance logging are needful also.

欠平衡钻井是对砂岩储层进行保护的一种有效方法，相应地，也需要进行欠平衡带压测井等油气层保护措施。

When the sandstone gas reservoir is drilled open by the underbalanced drilling using water based mud, the underbalance pressure normally can hardly offset the imbibition capillary force of the rock, which may result in backwash imbibition.

这种自吸效应可能对砂岩气藏水基欠平衡钻井的储层保护效果产生影响，但目前与之有关的实验研究还很缺乏。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐