Affect of Feldspar Dissolution to Properties of Sandstone Reservoir&nbsp; of Chang\|8 Oil Layer in Jiyuan Area, Ordos Basin

HE  Yan-Xiang, ZHANG  Wei, HU  Zuo-Wei, LAN Ye-Fang, HUANG  Pei-Pei

doi:10.11764/j.issn.1672-1926.2010.03.482

Natural Gas Geoscience >

2010 , Vol. 21 >Issue 3: 482 - 488

DOI: https://doi.org/10.11764/j.issn.1672-1926.2010.03.482

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Affect of Feldspar Dissolution to Properties of Sandstone Reservoir of Chang\|8 Oil Layer in Jiyuan Area, Ordos Basin

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1.State Key Laboratory of Oil/Gas Reservoir Geology and Exploitation, Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu　610059, China;2.PetroChina Coalbed Methane Company Limited, Beijing 100028,China

Received date: 2009-12-11

Revised date: 2010-03-16

Online published: 2010-06-10

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Abstract

Based on casting thin section, cathodoluminescence, scanning electron microscope, we discuss the lithological feature, petrophysical property and diagenesis of sandstone in the Chang 8 oil layer of Jiyuan area of Ordos basin. The research results show that the reservoir rock consists of feldspathic lithic sandstone and lithic feldspathic sandstone, with low compositional maturity and textural maturity, and average value of Q₁/(F₁+R₁) less than 0.8. The dissolution of feldspar in the reservoir rock was happened under diagenetic fluid and atmospheric water action. There is a lot of clay mineral, authigenic quartz and calcite in the dissolved feldspar brim and developed pores. The feldspar dissolved matters give an influence to reservoir physical property, where the self-kaolinite and authigenic quartz give a positive role to the pore formation and protection of, whereas the carbonate and authigenic illite play a negative action to it.

Key words： Jiyuan area; Sandstone reservoirs; Buried diagenesis; Feldspar dissolution; Reservoir property.

Cite this article

HE Yan-Xiang, ZHANG Wei, HU Zuo-Wei, LAN Ye-Fang, HUANG Pei-Pei . Affect of Feldspar Dissolution to Properties of Sandstone Reservoir of Chang\|8 Oil Layer in Jiyuan Area, Ordos Basin[J]. Natural Gas Geoscience, 2010 , 21(3) : 482 -488 . DOI: 10.11764/j.issn.1672-1926.2010.03.482

References

［1］Surdam R C,Boese S W,Crossey L J.The chemistry of secondary porosity［J］.AAPG Memoir,1984,37:127-149.
［2］Surdam R C,Crossey L J,Hagen E S,et al.Organic- inorganic and sandstone diagenesis［J］.AAPG Bulletin,1989,73(1):1-23.
［3］Tuo Jincai.Research status and advances in deep oil and gas exploration［J］.Advances in Earth Science,2002,17(4):565-570.［妥进才.深层油气研究现状及进展［J］.地球科学进展,2002,17(4):565-570.］
［4］Huang Sijing,Tong Hongpeng,Huang Keke,et al.Application of cathodolum inescence analyse to the recovery of feldspar content in sandstone：A case study of upper Paleozoic of Ordos basin and Xujiahe Formation of western Sichuan depression,Sichuan basin［J］.Advances in Earth Science,2008,23(10):1013- 1019.［黄思静,佟宏鹏,黄可可,等.阴极发光分析在恢复砂岩碎屑长石含量中的应用--鄂尔多斯盆地上古生界和川西凹陷三叠系须家河组的研究［J］.地球科学进展,2008,23(10):1013- 1019.］
［5］Li Wenguo,Zhang Xiaopeng,Zhong Yumei.Formation mechanism of secondary dissolved pores in arcose［J］.Oil & Gas Ceology,2005,26(2):220-223.［李汶国,张晓鹏,钟玉梅.长石砂岩次生溶孔的形成机理［J］.石油与天然气地质,2005,26(2):220- 223.］
［6］Sullivan K B,Earle F,Me Bride.Diagenesis of sandstones at shale contacts and diagenetic heterogeneity,Frio Formation,Texas［J］.AAPG Bulletin,1991,75:121- 138.［7］Liu Baojun.Sedimentary Petrology［M］.Beijing: Geological Publishing House,1980: 124-126.［刘宝珺.沉积岩石学［M］.北京:地质出版社,1980: 124-126.］ 
［8］ Fu Wei,Zhao Junxing,Liu Lili.Reservoir characteristics and evaluation of chang 4+5 oil member of Majiashan area,Jiyuan oil field,Ordos basin［J］.Natural Gas Geoscience,2009,20(4):531- 537.［付伟,赵俊兴,刘丽丽.姬塬油田马家山地区长4+5油层组储层特征与评价研究［J］.天然气地球科学,2009,20(4):531-537.］
［9］ Boles J R,Franks S G.Clay diagenesis in Wilcox sandstones of southwest Texas: Implications of smectite diagenesis on sand- stone cementation［J］.Journal of Sedmentology,1979,49(1):55-70.
［10］Yao Hefa,Lin Chengyan,Hou Jianguo,et al.The pattern of clay mineral transformation and palaeo- temperature in north Jiangsu basin［J］.Acta Sedimentologica Sinica,2004,22(1):29-34.［姚合法,林承焰,侯建国,等.苏北盆地黏土矿物转化模式与古地温［J］.沉积学报,2004,22(1):29-34.］
［11］Huang Sijing,Wu Wenhui,Liu Jie,et al.Generation of secondary porosity by meteoric water during time of subaerial exposure: An example from Yanchang Formation sandstone of Triassic of Ordos basin［J］.Earth Science:Journal of China University of Geosciences,2003,28(4):419- 424.［黄思静,武文慧,刘洁,等.大气水在碎屑岩次生孔隙形成中的作用--以鄂尔多斯盆地三叠系延长组为例［J］.地球科学:中国地质大学学报,2003,28(4):419-424.］
［12］Huang Keke,Huang Sijing,Tong Hongpeng,et al.Thermodynamic analysis of feldspar dissolution in clastic rocks［J］.Gelolgical Bulletin of China,2009，28（4）：474-482.［黄可可,黄思静,佟宏鹏,等.长石溶解过程的热力学计算及其在碎屑岩储层研究中的意义［J］.地质通报，2009，28（4）：474-482.］
［13］ Shi Ji′an,Jin Huijuan,Xue Lianhua.Annnalysis on mechanism of feldspar dissolution and its influencing factors in feldspar- rich sandstone reservoir［J］.Acta Sedimentologica Sinica,1994,12(3):67- 75.［史基安,晋慧娟,薛莲花.长石砂岩中长石溶解作用发育机理及其影响因素分析［J］.沉积学报,1994,12(3):67-75.］
［14］ Hurst A,Nadeau H P.Clay microporosity in reservoir sandstones: An application of quantitative electron microscopy in petrophysical evaluation［J］.AAPG Bulletin,1995,79(4):563- 573.

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