查询词典 sandstone

In Surennuoer faulted zone, the authigenic mineral assemblage of dawsonite and ankerite are formed during the mutual action between CO2 fluids and sandstone, and then the reservoir properties of dawsonite-bearing sandstone becomes poorer.

苏仁诺尔断裂带CO2流体在与砂岩相互作用过程中，形成了片钠铝石和铁白石的自生矿物组合，导致研究区含片钠铭石砂岩储层物性变差。

Research on rock mechanic characteristics of slight weather argillaceous sandstone s in Sichuan Basin;2. But the clean sand model through which we can calculate for- mation water resisitivity is unsuitable for argillaceous sandstone .

地层水电阻率是测井解释中一个极其重要的参数，以纯地层条件推导的用于确定地层水电阻率的自然电位理论模型不适合泥质砂岩地层。

Porosity logging methods examining gas reservoirs of sandstone and argillaceous sandstone through acoustic wave and density are effectively used in coal beds.

煤田中在煤层附近有煤层气砂岩储层、泥质砂岩储层的存在，声波、密度两种孔隙度测井是进行孔隙度探测的有效方法。

Lithology of Tertiary oil bearing reservoir in Taibei Sag is mainly fine sandstone and petrological types are mainly lithic arkose and hybrid sandstone.

台北凹陷第三系含油储层岩性以细砂岩为主，岩石学类型以岩屑长石砂岩和混合砂岩为主，含气储层岩性以砂砾岩为主，岩石学类型为岩屑砂砾岩。

Belongs to Ciying formation, which mainly is quartz sandstone, arkose, sandstone, siltstone, silty mudstone, sericite slate and intercalated with tuff and silicalite.

地壳抬升运动，使沉积在海洋或湖泊中的沉积岩也随之抬升，抬升的过程接受流水作用的下渗和侵蚀，使沉积台地更易解体，有利于柱体的形成。

The research shows that the distribution of CT value is from 1819 to 1961, which is 15% above that of the Berea sandstone. It belongs to the representative ultra-low permeability sandstone reservoir.

研究表明，实验岩心的CT值分布在1819~1961之间，与标准的Berea砂岩相比高出15%左右，属于典型的特低渗透砂岩储层。

Based on the study on the reformation of Dawsonite sandstones with CO2 fluids at different temperature (100℃, 200℃ and 300℃) and different the CO2/H2O/sandstone systems in inclosed containers, it is suggested that the corrosion intensity of dawsonite sandstone will gradually be enhanced as the temperature increases.

不同温度（100℃，200℃和300℃）下CO2流体对含片钠铝石砂岩的改造作用研究显示：随着温度的升高，砂岩的溶蚀、溶解程度逐渐增强，样品中片钠铝石的稳定性逐渐减弱。

At the same time, the SEM study shows that gibbsite occurs on the sample surface. At 200 ℃, as dawsonite sandstone is being dissolved authigenic siderite forms. At 300℃, chlorite deposit on parts of the sample surface. The weak solution of dawsonite sandstone at 100℃ and the formation of siderite at 200℃ illuminate that CO2 being in carbonates in the strata can not be released when CO2 phase is adding to the system.

同时，各温度下样品表面均有一水软铝石放射状集合体沉淀。200℃时，随着片钠铝石的溶解有自生菱铁矿生成，300℃时样品局部有绿泥石沉淀。100℃下片钠铝石的微弱溶解及200℃下菱铁矿的形成表明，在地层条件下以碳酸盐矿物形式捕获的CO2，不会由于CO2的二次注入而重新释放。

The Tertiary reservoir in the vertical orientation develops three high porosity zones, every one firstly occurs in the sandstone of debouch bar and braided-divided flow channel, secondly occurs in the sandstone of raised bank and channel bar.

第三系储层在纵向上发育三个高孔带，各高孔带主要发育在沉积微相为河口坝、辫状分流河道的砂体中，其次发育在天然堤和心滩的砂体中。

The findings indicate that under uniaxial compression, the red sandstones at first experience structural intensification and then structural degradation until they are failed; the unconfined compressive strength of red sandstone is mainly related with compaction rate, pore distribution and connecting condition of mineral grains; and the above factors have a more notable impact on the unconfined compressive strength of red sandstone with the increase of weathering; with the increase of load, the grains area ratio and Euler number decrease, the pore develops towards centralization or collectivization, and the red sandstones gradually lose their resistance to deformation.

研究结果表明：在单轴压缩条件下，红砂岩先结构强化，后结构劣化，直至最终破坏；红砂岩的单轴抗压强度主要与密实程度、微孔洞等缺陷的分布情况及矿物颗粒之间的联结状态有关，随着红砂岩风化程度的增强，以上各因素对其单轴抗压强度的影响将更加显著；伴随荷载的增加，红砂岩的矿物颗粒面积比例及欧拉数总体上趋于减小，孔隙向着集中化和集团化的趋势发展，红砂岩抗变形能力逐步丧失。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。