泉头组

特低渗透泉头组地层与油田开发研究

Research on Ultra-low Permeability Quantou Formation and Oilfield Development

吉林省中部早白垩世泉头组-原始鸟脚类恐龙

A primitive ornithopod from the early Cretaceous Quantou Formation of central jilin , China

吉林中部早白垩世泉头组恐龙蛋化石的研究

Dinosaur Eggs Research from the Early Cretaceous Quantou Formation in the Central Jilin Province

泉头组主要发育河流、泛滥平原、冲积扇以及滨浅湖相。

Quantou formation mainly developed rivers bet lands 、 alluvial fan and shore meare facies .

营城组火山岩是研究区断陷内深层（指包括火石岭组至泉头组一二段在内的所有地层）勘探的重要目的层之一。

Yingcheng formation volcanic rock is one of the explorative objective formations in the rift deep formation .

储集层以泉头组河道砂体和营城组扇三角洲砂体为主，烃源岩及储层发育和展布受沉积环境及充填层序控制。

The development and distribution of source rock and reservoir are controlled by sedimentary environments and filling sequence .

三肇地区是松辽盆地北部深层（泉头组二段及其以下地层）天然气勘探的重点地区。

Sanzhao area is one of focuses of deep ( K1q2 and below ) gas exploration in the northern Songliao basin .

断陷地层的暗色泥岩是好的油气源岩，最好的储集层是坳陷层的泉头组。

The dark mudstones in the faulted sag are good source rocks , among which Quantou Formation is the best reservoir in the sagging stratum .

大庆油田为给提高深层地层机械钻速提供科学依据，在徐深21井的泉头组2段以下非储层段进行了空气钻井试验。

In order to acquire data necessary to increasing penetrating speed in deep formation , the Daqing oilfield tested non-reservoir formations beneath section Quantou-2 in Well Xushen-21 with air drilling .

在此基础上，进行了精细的构造解释，得出了本区登娄库组地层、泉头组地层及其内部地层的分布规律。

And then , based on the delicate interpretation of the seismic data , We obtain the distribution regular pattern of the Denglouku and Quantou formation and the inner layering of them .

利用复合钻井恰恰可以达到防斜快打，保证井身质量，提高庆深气田泉头组到登娄库组地层机械钻速，节约钻井成本的目的。

As a result , we found that the problerm can be solved by The Combined Drilling Technology , which also can enhance the wellbore quality and reduce the cost of drilling .

研究表明梨树凹陷泉头组主要发育河流相，登娄库组以滨浅湖相为主，在周围地区发育辫状河三角洲相及扇三角洲相。

The sedimentary facies of Quantou Formation is mainly fluvial facies , Denglouku Formation is mainly shore-shallow lake facies and braided delta facies , fan-delta facies are developed in the surrounding area .

通过对白垩系泉头组碎屑沉积岩岩石样品的岩石化学分析表明：主元素化学分类结果主要为长石砂岩、页岩，少量岩屑砂岩和硬砂岩；

The petrological-chemical analysis of clastic sedimentary rocks from Quantou Formation , Cretaceous indicates that their lithology mainly consists of arkose , shale and minor rock debris sandstone and greywacke by chemical classification of bulk elements .

提出泉头组三、四段和登娄库组二段的暗色泥岩的分布，控制了次生孔隙发育带的分布；

The distribution of the dark shale rocks , whi - ch are in the third and fourth sections of Quantou group and the second section of Denglouku group control the formation of the secondary porosity developed zones ;

泉头组及其以下的盖层形成时间较早.但因分布面积小，后期断裂破坏严重，不能有效地封盖和保存早期排运的深源气；

The forming time of Quantou formation and the cap rock under it is earlier but unavailable fot sealing and preserving the : deep source gas exhausted in early period as less distributive area and serious rupture damages in later period .