摘要
为解决喇嘛甸油田高渗透砂岩层井径异常扩大,根据喇嘛甸油田砂岩层高孔隙度高渗透率的特征,选取喇嘛甸油田1997～2006年具有代表性的3口井不同层位的20块岩心样品,进行岩石单轴抗压强度和剪切强度实验,分析新老井岩石力学参数中弹性模量、剪切模量和弹性强度的变化规律.利用X-射线衍射、扫描电镜等实验,分析与泥岩层地区不同的砂岩层岩石力学参数的主要影响因素,同时提出预防井径扩大的建议,为高渗透砂岩层井径异常扩大的预防提供指导.
In order to solve the phenomenon of high permeability sandstone borehole diameter anomaly expanding in well drilling process in Lamadian Oil Field,in view of the Lamadian Oil Field sandstone's characteristic of high porosity and high permeability.Twenty rock cores of different position from 1997 to 2006 have been collected to carry on experiment of compressive resistance and shear intensity in Lamadian Oilfield.Through analysis of the rule of chang from the rock mechanics parameter such as elastic modeling quantity and modulus of shearing of the experiment measured.And using X beam diffraction and SEM discovery the primary factor which influence the sandstone level rock mechanics properties that differ from mudstone,and raise the proposal of preventing the borehole diameter anomaly expanding.Instruction the prevention of high permeability sandstone formation borehole diameter anomaly expanding.
出处
《大庆石油学院学报》
CAS
北大核心
2009年第2期16-19,122,共4页
Journal of Daqing Petroleum Institute
关键词
喇嘛甸油田
岩石力学
井径扩大
注入水
黏土矿物
Lamadian oil field
rock mechanics
borehole diameter expanding
water-injection
clay mineral
