松辽盆地大安油田下白垩统泉头组四段特低渗—超低渗储集层成岩作用定量研究<sup>*</sup>

doi:10.7605/gdlxb.2016.02.019

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Abstract The diagenetic types,intensity,and the influence factors of extra-low to ultra-low permeability reservoirs of the Member 4 of Cretaceous Quantou Formation in Da??an Oilfield are analyzed by using data of thin section,casting thin section,SEM,physical properties,logging explanation and particle size analysis. The results show that:(1)Compaction is the dominant diagenesis which leads to the loss of the pore. The compaction degree is medium,which has a good correlation with the compound sand thickness,sorting coefficient,mud content etc.(2)The carbonate cementation is the second important factor for the poorer physical properties of reservoirs. The cementation degree is quite weak,and the decrease of the porosity caused by cementation is related to the distance from the reservoir to the configuration surface,quartz content,clastic component content and matrix content.(3)The dissolution degree is relatively weak,which can improve the physical properties of the reservoirs. The increased porosity ratio by dissolution has a certain correlation with compound sand thickness and matrix content. The influfence degree of compaction,cementation and dissolution on the physical properties of reservoirs can reflect that the vertical superimposition relationship of sand bodies,thickness of channels,and hydrodynamic intensity can affect the types and intensity of diagenesis.

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	Articles by authors
	Shi Chaoqun
	Wang Yunlong
	Qin Zhi
	Lin Yanbo
	Pan Zhaoguang
	Chen Guohui
	Liu Xiaoqin
	Bao Zhidong
	Tao Zui
	Fang Song
	Dou Luxing
	Yao Tingting
	Yang Shangfeng
	Yang Yichun

Received: 02 June 2015 Published: 01 April 2016

ZTFLH:

P618.3

Corresponding Authors: Wang Yunlong,born in 1969,is a chief engineer in Fuyu Oil Production Plant,Jilin Oilfield Company,PetroChina. Bao Zhidong,born in 1964,is a professor doctoral supervisor of College of Geosciences of China University of Petroleum(Beijing),with a Ph.D. degree obtained from China University of Petroleum(Beijing). He is mainly engaged in sedimentary geology,lithofacies palaeogeography,reservoir geology and reservoir description. E-mail: baozhd@cup.edu.cn.

About author: About the first author Shi Chaoqun,born in 1986,is an engineer of Institute of Tarim Oilfield Company,with a Ph.D. degree obtained from China University of Petroleum(Beijing). She is mainly engaged in sedimentary geology and reservoir geology. E-mail: shichaoq@126.com.About the Corresponding authors Wang Yunlong,born in 1969,is a chief engineer in Fuyu Oil Production Plant,Jilin Oilfield Company,PetroChina. Bao Zhidong,born in 1964,is a professor doctoral supervisor of College of Geosciences of China University of Petroleum(Beijing),with a Ph.D. degree obtained from China University of Petroleum(Beijing). He is mainly engaged in sedimentary geology,lithofacies palaeogeography,reservoir geology and reservoir description. E-mail: baozhd@cup.edu.cn.中图分类号:P618.3 文献标志码: A

Cite this article:

Shi Chaoqun,　Wang Yunlong,　Qin Zhi　 et al. Quantitative study on diagenesis in reservoirs with extra-low to ultra-low permeability in the Member 4 of Lower Cretaceous Quantou Formation in Da��an Oilfield, Songliao Basin[J]. JOPC, 2016, 18(2): 251-264.

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http://journal09.magtechjournal.com/gdlxb/EN/10.7605/gdlxb.2016.02.019 OR http://journal09.magtechjournal.com/gdlxb/EN/Y2016/V18/I2/251

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