塔里木盆地英买35井区志留系储层石英增生机理及意义

发布时间：2018-04-15 10:12

  本文选题：石英砂岩 + 增生　； 参考：《天然气地球科学》2016年10期

【摘要】：在英买35井区志留系柯坪塔格组上段,针对致密海相石英砂岩储层的成因,结合薄片、包裹体测温、伊利石测年、阴极发光等资料,认为石英砂岩存在4期主要的石英增生:1泥盆纪、石炭纪,来源于寒武系硅质生物遗骸中的硅质增生;2二叠纪火山喷发,来源于寒武系、奥陶系、志留系的硅质大量增生;3三叠纪、侏罗纪地层暴露剥蚀,来源于二叠系凝灰岩的硅质增生;4白垩纪至今地层快速沉降深埋,志留系成岩活动加剧,硅质析出增生。二叠系火成岩喷发提供了石英增生的动力与物源。毗邻二叠系火成岩侵入体的志留系砂岩储层存在热接触变质带和致密胶结带。
[Abstract]:In Yingmai 35 well area of upper Silurian KEPINGTAGE formation, causes for marine dense quartz sandstone reservoir with thin inclusions, illite dating, cathodoluminescene, that there are 4 main quartz sandstone quartz overgrowths: 1 Devonian, Carboniferous, derived from Cambrian siliceous organisms remains in siliceous hyperplasia; 2 Permian volcano eruption, originated in the Cambrian, Ordovician, Silurian and siliceous proliferation; 3 Triassic, Jurassic strata exposed to erosion, originated from Permian siliceous tuff of the Cretaceous formation has 4 hyperplasia; rapid settlement of deep buried, Silurian diagenetic activity intensified, siliceous precipitation proliferation. Permian igneous rock eruption provides quartz overgrowth the power and source. The thermal contact metamorphic zone and dense cementation of sandstone reservoirs in Silurian to Permian igneous rocks.

【作者单位】： 中国石油塔里木油田分公司勘探开发研究院;
【基金】：国家重大科技专项“塔里木盆地岩性地层油气藏富集区带、目标优选与勘探技术应用”(编号:2011ZX5001-002-003)资助
【分类号】：P618.13
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本文编号：1753668