摘要
应用覆压条件孔隙度渗透率自动测量仪(AP608)测量的孔隙度和渗透率是在有效覆压下的三轴孔隙度,而储量计算是要求计算油气藏孔隙中的含油气量,应该使用地层条件下的单轴孔隙度。为解决这一问题,笔者通过对长岭断陷安山岩、角砾凝灰岩和凝灰岩的代表性样品进行多个围压下孔隙度的测量,给出了将三轴孔隙度转换为单轴孔隙度的校正方法,转换后的孔隙度可以直接用于储量计算。
Under the condition of overburden pressures,the porosity and permeability measured by automated permeameter and porosimeter(AP608)are triaxial porosity under effective overburden pressures.However,the calculation of reserves requires the calculation of oil and gas contents in the pores of oil and gas reservoirs,so the uniaxial porosity under formation conditions should be used.Based on the measurement of porosity of representative samples of andesite,breccia tuff and tuff in the Changling fault depression under multiple confining pressures,the authors present a correction method for converting triaxial porosity into uniaxial porosity,and the converted porosity can be used for reserve calculation directly.
作者
张丽华
王敏
单刚义
潘保芝
ZHANG Lihua;WANG Min;SHAN Gangyi;PAN Baozhi(College of Geo-exploration Science and Technology,Jilin University,Changchun 130026,China;Sinopec Northeast Oil&Gas Company,Changchun 130026,China)
出处
《世界地质》
CAS
2022年第1期147-152,共6页
World Geology
基金
国家重点研发项目(2020YFE0201300)
国家自然科学基金面上项目(42074119)联合资助。
关键词
火山岩
覆压孔隙度
校正
覆压渗透率
长岭断陷
volcanic rocks
overburden porosity
correction
overburden permeability
Changling fault depression
