| 普光气田鲕滩储层关键溶蚀期次的确立——兼议H_2S与石膏的关系 |
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| 引用本文： | 夏明军,邓瑞健,姜贻伟,毕建霞,靳秀菊. 普光气田鲕滩储层关键溶蚀期次的确立——兼议H_2S与石膏的关系[J]. 天然气地球科学, 2010, 21(1) |
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| 作者姓名： | 夏明军 邓瑞健 姜贻伟 毕建霞 靳秀菊 |
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| 作者单位： | 1. 中原油田博士后工作站,河南,濮阳,457001;中原油田勘探开发科学研究院,河南,濮阳,457001
2. 中原油田勘探开发科学研究院,河南,濮阳,457001 |
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| 基金项目： | 国家科技重大专项基金 |
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| 摘 要： | 普光气田同生期溶蚀作用形成大量的鲕模孔、生物模孔及粒内溶孔,并具有有效的保存机制。第1期埋藏溶蚀与富含有机酸的酸性水有关且溶蚀强烈,形成大量的粒内溶孔、粒间溶孔、晶间溶孔和溶洞等次生孔隙。同生期溶蚀、第1期埋藏溶蚀和白云岩化作用形成优质储层的主要孔隙类型,构成优质储层的主要储集岩性。这2期溶蚀作用和溶蚀方向符合普光气田孔隙度变化规律,是关键溶蚀期次,是鲕滩优质储层形成的重要条件。第2期埋藏溶蚀以CO2和H2S为主。第3期埋藏溶蚀与裂缝和H2S有关,但薄片中标志H2S溶蚀的沥青环边位于孔隙内部的构造并不多见,普光气田中H2S来源也与石膏关系不大,含硫铁矿烃源岩和储层中单质硫可能是H2S形成的主要原因。
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| 关 键 词： | 普光气田 溶蚀 鲕滩 石膏 |
Determiantion of the Key Dissolution Stage of Oolitic Beach Reservoir and Discussion of Relationship Between H_2S and Anhydrite in Puguang Gas Field |
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| XIA Ming-jun,DENG Rui-jian,JIANG Yi-wei,BI Jian-xia,JIN Xiu-ju. Determiantion of the Key Dissolution Stage of Oolitic Beach Reservoir and Discussion of Relationship Between H_2S and Anhydrite in Puguang Gas Field[J]. Natural Gas Geoscience, 2010, 21(1) |
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| Authors: | XIA Ming-jun DENG Rui-jian JIANG Yi-wei BI Jian-xia JIN Xiu-ju |
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| Affiliation: | XIA Ming-jun1,2,DENG Rui-jian2,JIANG Yi-wei2,BI Jian-xia2,JIN Xiu-ju2(1.Postdoctoral Research Workstation,Zhongyuan Oilfield,Puyang 457001,China,2.Research Institute of Petroleum Exploration & Development,China) |
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| Abstract: | A lot of oolitic model pores,biological model pores and intragranular dissolved pores were formed during syngenetic dissolution stage in the Puguang gas field,and had an effective preservation mechanism.At the first stage of buried dissolution,the acidulous water enriched organic acid with strong dissolution causes the formation of intragranular dissolved pore,intergranular dissolved pore,intercrystalline dissolved pore and cave etc.The syngenetic dissolution and the first stage buried dissolution with dolo... |
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| Keywords: | H_2S Puguang gas field Dissolution Oolitic beach Anhydrite H_2S. |
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