古16井区火山岩储层测井评价

通过成像测井资料并结合地质资料和常规测井资料分析,对16井区火山岩裂缝性储层有效性和渗透性进行了评价研究。结果表明:火山岩储层空隙类型主要为裂缝和基质溶孔,储层模式主要为裂缝直接连通裂缝型、裂缝间接连通的孔隙—裂缝型,储层类型有低孔—裂缝型和孔隙—裂缝型2种;储层孔隙度较小,基质岩块孔隙度为2%~22%;裂缝为0.01%~0.08%,为低孔、低渗性储集层;储层主要分布在火山岩的中上部不整合面250 m以内。

EVALUATION OF VOLCANIC ROCK RESERVOIR IN GU16TH AREA,KLAMY OIL-FIELD

Based on the EMI data, geologic information and conventional logging data, the validity and permeability of the fractured reservoirs in the volcanic rocks of the area of Gu-16 wellare evaluated. The result shows: there are two primary reservoir interspaces, the fracture and the matrix dissolved pore in the volcanic rocks. The reservoir pattern mainly includes: the directly interconnected fractures type and the indirect interconnected pore-fractures type. The reservoir type includes: the low-pore-fracture type and the pore-fracture type. The matrix porosity is 2%-22% or so and the fractured porosity is 0.01%-0.08% in volcanic rock reservoir, so volcanic rock reservoir is low porosity and low permeability reservoir. It is distributed beneath less than 250 meters of unconformable face, which is on the middle and upper areas of volcanic rock.