CAJ | 학술논문

岩石有3个体积,也有3个应力,因此,岩石有9个压缩系数,其中4个是独立的.油藏工程中使用的岩石压缩系数,实际上是岩石孔隙体积的压缩系数.岩石压缩系数与地层流体的压缩系数之和,为总压缩系数.总压缩系数折算到地层原油体积之上,为有效压缩系数.综合压缩系数概念模糊,不宜继续使用.地层压缩系数不伦不类,既不能实测,也无处使用,不宜继续给学生讲授,建议从油藏工程教科书中删除.
암석유3개체적,야유3개응력,인차,암석유9개압축계수,기중4개시독립적.유장공정중사용적암석압축계수,실제상시암석공극체적적압축계수.암석압축계수여지층류체적압축계수지화,위총압축계수.총압축계수절산도지층원유체적지상,위유효압축계수.종합압축계수개념모호,불의계속사용.지층압축계수불륜불류,기불능실측,야무처사용,불의계속급학생강수,건의종유장공정교과서중산제.
There are three volumes and three stresses used to describe rock,nine compressibilities are determined accordingly,of which only four are independent.The rock compressibility used in reservoir engineering is actually the one of pore volume of rock.Rock compressibility plus the compressibility of reservoir liquids is called the total compressibility,which can be converted to the effective compressibility by oil saturation.The comprehensive compressibility used conventionally is obscure conceptually,which is not suggested to be used any more.Formation compressibility is easily confused,which can neither be measured nor be used in engineering,so is not suggested to be lectured in school for students any more,and had better be immediately eliminated from textbooks.