陕西科技大学学报（自然科学版）Issue(2)：93-96,4.
超低渗透油藏分段多簇压裂水平井渗流特征研究
Flow regimes of segmented multi-cluster fractured horizontal well in ultra-low permeability reservoir
摘要
Abstract
Based on the geological and fluid proprieties of Chang-8 ultra-low permeability res-ervoir ,a single well numerical simulation model of segmented multi-cluster fractured hori-zontal is built by using the method of numerical simulation and the technology of equivalent local grid refinement (EQ-LGR) .Application of the model ,flow regimes and its affecting factors of segmented multi-cluster fractured horizontal well are studied by using numerical well test .The result shows that the segmented multi-cluster fractured horizontal well has six flow stages and show s the characteristic of double media .Whether the vertical radial flow ap-pears depends on the size of the wellbore storage coefficient .Hump peak increases with the increase of skin factor .Flow conductivity of main fractures mainly affects the early and mid-dle flow stages .Fracture half-length is less effect on the dimensionless pressure and pressure derivative .Permeability of simulated zone has great influence on the locations and shapes of dimensionless pressure and pressure derivative curve .The existence of stress sensitive can make the dimensionless pressure and pressure derivative curve upward ,but each stage hasn′t obviously changed .关键词
超低渗透油藏/水平井/分段多簇压裂/数值试井/渗流规律Key words
ultra-low permeability reservoir/horizontal well/segmented multi-cluster frac-tured/numerical well test/flow regime分类
石油、天然气工程引用本文复制引用
王欢,廖新维,赵晓亮,李小锋,王明,宋金鑫..超低渗透油藏分段多簇压裂水平井渗流特征研究[J].陕西科技大学学报（自然科学版）,2014,(2):93-96,4.基金项目
国家自然科学基金项目（ U1262101）；科技部国家科技重大专项项目 （）
