bioclastic

Analysis and Evaluation of Bioclastic Limestone Reservoir in the Central Region of Tarim Basin

塔中地区生物碎屑灰岩储层分析与评价

Special stratigraphic sequence ( from bottom upwards ): volcanic rocks , pyroclastic limestone and bioclastic limestone ;

自下而上的地层序列是火山岩系-火山碎屑灰岩-生物碎屑灰岩；

Reservoir Characteristics and Evaluation of Carboniferous Bioclastic Limestone in Central Tarim Basin

塔里木盆地中部石炭系生屑灰岩储集层特征及评价

Quantitative study of bioclastic grains in carbonate rocks : Theoretical analysis and application of point-counting method

碳酸盐岩生屑颗粒定量研究&点计数法的理论分析与应用

Outside Reef is shallow bank composed mainly bioclastic and oolitic limestone .

礁外主要为生屑及鲕粒灰岩浅滩。

Study of sedimentary facies of bioclastic limestone member , carboniferous , Tarim Basin

塔里木盆地石炭系生屑灰岩段沉积相研究

Granular rock contain bioclastic limestone , algal limestone and sand limestone .

颗粒岩包括生屑灰岩、藻屑灰岩和砂屑灰岩等，此外，栖二段还发育有白云岩化的颗粒岩。

Reservoir Characteristics and Hydrocarbon Accumulation of Bioclastic Limestone Section of Bachu Formation in Bachu Area , Tarim Basin

巴楚地区巴楚组生屑灰岩段储集层特征与油气成藏

Reservoir lithology is mainly made of reef limestones and bioclastic grainstones , with low level dolomitization .

储层岩性主要以礁灰岩及生物屑亮晶灰岩为主，岩石白云化程度较低。

A set of sandstone and few mudstone combination and Micritic bioclastic limestone composes of the Xili Formation .

夏里组为一套砂泥岩组合夹泥晶生屑灰岩等组成。

The reef island belt from Tusuo Lake to Huashixia is mainly composed of massive reef limestone and bioclastic limestone .

托索湖&花石峡礁带的主体由块状的礁相灰岩和生物碎屑灰岩所组成；

A unique depositional sequence consists of phylloid algal buildups , bioclastic banks and mud facies affected by frequent changes of depositional environments .

叶状藻礁在沉积环境频繁变化作用下，与碎屑滩相、灰泥相共同形成独特的沉积序列。

Restricted platform facies rocks characterized by micrite , containing bioclastic micrite and bioclastic micrite main output common marl , rock containing clay and organic matter have plans .

局限台地相岩性特征表现为以泥晶灰岩、含生屑泥晶灰岩及生屑泥晶灰岩为主，常见泥灰岩产出，岩石含泥质及有图机质。

Principal diageneses are cementation , compaction , pressure-solution , dolomitization , solution and fracturing , which control the reservoir properties of the bioclastic limestone member .

胶结作用和压实作用是主要的孔隙破坏者，它们破坏了几乎所有的原生孔隙和部分次生溶孔；

Open platform facies metamorphic rocks are massive micritic bioclastic limestone and bioclastic limestone , with massive bedding , convolute bedding and graded bedding biological debris .

开阔台地相岩石类型主要为块状泥晶生屑灰岩和生屑灰岩，具块状层理、丘状层理和生物屑粒序层理。

Bioclastic limestone is also belonged in the effective hydrocarbon source rock and if it contains silicon or is belonged in deepwater deposit ( trough ), its organic carbon content is higher ( e.g.P 1 m ) .

生屑灰岩也属有效烃源岩，若含硅质或属深水沉积（海槽），则有机碳含量较高（如P1m）。

Main types of rock are described and discussed : sparry bioclastic limestone 、 micritic cncrinite 、 organic alge micrite 、 radiolarian chert and calcareous bioclastic chert .

描述和讨论的主要岩石类型有亮晶生物屑灰岩、泥晶海百合丘灰岩、含有机质藻粒泥晶灰岩、放射虫硅质岩及含钙质生物硅质岩。

The deltaic front was represented by the Xiaoheba Formation , in which four facies were recognized : front and sheet , reef , oolite ( bioclastic shoal ), inter-reef ( shoal ) mud .

三角洲前缘亚相以小河坝且为代表，已鉴别出试状砂粒滩、礁间泥微相；

Favorable reservoirs are paleo karst related to regional unconformity , carbonate buildup and bioclastic limestone in TST and HST , turbidite in LST and dolostone or grainstone in lower LST and higher HST .

良好的储层包括与不整合相关的古喀斯特、TST和HST的碳酸盐岩隆、生物碎屑滩和LST的浊积岩、LST底部和HST顶？

The prominent characteristic of the siliceous rock is the residual bioclastic structure , with plenty of silicified calcareous organisms , such as brachiopoda , encrinite caudex and coral , which are several millimeters in size .

其显著特征是，岩石具残余生物碎屑结构，见大量腕足类、海百合茎、珊瑚等钙质生物假象，主要为mm级完整个体，密集堆积。

Several points can be concluded for the area from this paper study : ( 1 ) Hydrocarbon mainly occurs in the lower interval of bioclastic limestone and dolomitic limestone ( the special lithologic interval ) in Es_1 Member , in which solution pores well developed ;

本文研究表明，大中旺地区油气主要分布在沙一段下部的生物碎屑灰岩和云质灰岩段（特殊岩性段），储层溶蚀孔隙发育；