鲕粒岩

Algae, echinoderm, bivalve, and reef-building organisms including bryozoan, coral, stromatoporoids, and sponge are conserved in the carbonate of the Yijianfang Formation.

通过对塔河南盐下地区28口钻井岩心中奥陶统一间房组的详细描述和3 200余块薄片的鉴定，确认其主要的岩石类型有生屑灰岩、生物灰岩、藻球粒灰岩、含核形石灰岩、鲕粒灰岩、内碎屑灰岩、微晶灰岩、海绿石灰岩。

Feixianguan Formation of lower Triassic is an important reservoir, which mainly consists of the dense oolitic dolomite and limestone altered by the late dolomitization of oolitic bars.

四川盆地东北部的三叠系下统飞仙关组是重要的油气储层，其储集岩体主要为经晚期白云岩化改造的鲕滩坝沉积的致密鲕粒白云岩、鲕粒灰岩。

Wave-rippled ooid–intraclast grainstone beds and bedsets overlie shale or form the base of the second cycle type.

波痕状鲕粒内碎屑颗粒灰岩覆于页岩上或形成第二种旋回类型的底部。

Mixed water dolomization is the basis of platform fringing oolitic beach reservoir of Feixianguan group.

残余鲕粒白云岩是飞仙关组鲕滩气藏最有利的储层。白云石化作用是有效储层形成的关键因素之一。

The burial diagenetic dolostone with multiperiodic metasomatic geneses only of reservoir significance,including two main structure types of oolitic dolostone and crystalline d...

其中具有储集意义的仅为多期次埋藏交代成因的成岩白云岩，包括鲕粒白云岩和晶粒白云岩两种主要结构类型。

The Changxing Formation reservoirs are mainly a set of reef dolomite, sparry oolitic dolomite, and have moderate to high porosity, moderate to high permeability and good physical properties. The reservoir space types are mainly intercrystalline pore, intercrystalline solution pore, intergranular dissolved pore, intragranular dissolved pore, moldic pore and dissolved expanding pore, and to a lesser extent, crack and suture.

长兴组储层主要为一套礁白云岩、亮晶鲕粒云岩和残余颗粒云岩，以高中孔、中高渗，孔隙型储层为主，储集空间类型以晶间孔、晶间溶孔、粒间溶孔、粒内溶孔、铸模孔以及溶蚀扩大孔为主，裂缝和压溶缝合线次之，具有较好的物性特征。

The beach body of Lower Triassic Feixianguan Formation in northwestern Sichuan can be divided into platform marginal oolitic beach and intraplatform point beach. The water is relatively deeper at the forming of most of platform marginal oolitic beach which is not transformed by the diagenesis of fresh water and mixed water and has poor reservoir properties. However, a part of oolitic beach formed under shallow water environment, and it is transformed by the diagenesis of fresh water and mixed water and well dolomitized, which can form excellent reservoir.

川西北下三叠统飞仙关组滩体分为台地边缘鲕粒滩和台地内点滩2种类型，多数台地边缘鲕粒滩形成时水体相对较深，未经大气淡水和混合水的成岩改造，储集性能较差，局部鲕粒滩形成时水体较浅，在经过大气淡水和混合水的成岩作用改造后，白云石化好，可形成储集性能极好的储集体；台地内点滩白云石化较好，储集性能也较好，但分布狭窄，厚度较薄，无规律可寻。

The reservoir on the southwestern side of the trough mainly consists of oolith limestone, which is thick and extensively distributed but with poor reservoir quality; good lenticular dolomite reservoir only distributes in some limited areas.

海槽东北侧储层主要由次生孔隙发育的鲕粒白云岩组成，厚度大、分布广和质量好；海槽西南侧储层主要由次生孔隙欠发育的鲕粒灰岩构成，虽然厚度大、分布广，但质量较差，仅局部分布有良好的透镜状白云岩储层。

Rock, usually limestone, composed of oolites.

岩石岩石，通常指石灰岩，由鲕粒岩组成

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。