X射线衍射在南海西部油田D1井成岩中的应用  

Application of X-ray diffraction in diagenesis-Take the D1 well in West South china Sea oilfield as an example

作　　者：彭俊峰 刘冲 黄向胜 闫琢玉 Peng Junfeng;Liu Chong;Huang Xiangsheng;Yan Zhuoyu(CNOOC EnerTech-Drilling&Production Co.CNOOC Central Laboratory,Chengmai 571900;CNOOC EnerTech-Drilling&Production Co.CNOOC Central Laboratory,Tianjin 301800)

机构地区：[1]中海油能源发展股份有限公司工程技术分公司中海油实验中心,海南澄迈571900 [2]中海油能源发展股份有限公司工程技术分公司中海油实验中心,天津301800

出　　处：《石化技术》2024年第11期253-255,共3页Petrochemical Industry Technology

摘　　要：通过X射线衍射来测定南海西部油田D1井中黏土矿物相对含量,从而研究黏土矿物的相互转化关系并判定成岩作用阶段。研究表明,埋藏成岩过程中孔隙介质流体呈碱性,并富含K+,高岭石与伊/蒙混层向伊利石转化。结合伊/蒙混层比S%、地球化学、铸体薄片资料判定目的层正处于中成岩阶段。The relative content of clay minerals in well D1 of the West South China Sea oilfield was determined by X-ray diffraction,so as to study the mutual transformation relationship of clay minerals and determine the diagenetic stage.The results show that the fluid in the pore medium is alkaline and rich in K,and the kaolinite and Yi/Mengzi mixed layer transform into illite.Based on the data of S%of Yi/Mengzi mixed layer,geochemistry and thin section of cast,it is determined that the target layer is in the middle diagenetic stage.

关 键 词：X 射线衍射 南海西部油田 粘土矿物 成岩作用 

分 类 号：P618.13[天文地球—矿床学]