SYT5478-2003碳酸盐岩成岩阶段划分.pdf

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1、ICS75.010E11备案号:11563-2003SY中华人民共和国石油天然气行业标准SYiT5478-2003代替SY/1'5478-92碳酸盐岩成岩阶段划分Thedivisionofdiageneticstagesincarbonaterocks2003一03一18发布2003一08一01实施国家经济贸易委员会发布SY/`C5478-2003目次前言·····························································································

2、······，··············⋯⋯I1范围············································································································⋯⋯12术语和定义···································································································⋯⋯13成岩阶段划分的依据················

3、··········································································⋯⋯14成岩阶段的划分及其特征·············，···········································⋯⋯“···⋯⋯”·“““”‘’24.1成岩阶段的划分·····························································································⋯⋯24.2

4、各成岩阶段的特征·····，···················································································一25各成岩阶段的标志·························································································⋯⋯25.1同生成岩阶段·······························································

5、··························，·⋯⋯25.2早成岩阶段··································································································⋯⋯55.3中成岩阶段··································································································⋯⋯65.4晚成岩阶段1，······】·，，，，·

6、·，】···，·，，·······，·，·，····················································⋯⋯75.5表生成岩阶段·······························································································⋯⋯8SY/fi5478-2003oil舀在碳酸盐岩成岩历史演化阶段中，其中的有机质成熟并形成烃类的演化阶段性很明显。且由于海平面升降及地壳运动使沉积物和碳酸盐岩处于暴露或埋藏，形成

7、不同的成岩环境及其产物。本标准以烃类演化的阶段性结合成岩环境、岩石学特征、次生空隙类型划分成岩阶段。与SY/T5478-92相比主要变化如下:—增加了中成岩阶段;—补充了表生成岩阶段的内容。本标准从生效之日起，同时代替SY/I'5478-920本标准由石油地质勘探专业标准化委员会提出并技术归口。本标准起草单位:中国石油天然气股份有限公司西南油气田分公司勘探开发研究院。本标准主要起草人:孔金祥、李国蓉。SY/T5478-2003碳酸盐岩成岩阶段划分1范围本标准规定了碳酸盐岩成岩阶段的划分、依据、标志和方法。本标准适用于石油天然气行业碳酸盐岩

8、成岩阶段的划分及特征研究。2术语和定义下列术语和定义适用于本标准。2.1成岩阶段diageneticstage碳酸盐沉积物沉积之后至碳酸盐岩变质之前的无机组分和有机组分在各种成岩环境中发生变化