特种油气藏2018，Vol.25Issue(2)：111-115,5.DOI:10.3969/j.issn.1006-6535.2018.02.022
特厚层稠油油藏隔夹层识别研究
Interlayer Identification in Ultra-Thick Heavy Oil Reservoir
摘要
Abstract
Interlayer is a key factor influences the development and expansion of steam chamber and steam(gas)-liquid flow difference in ultra-thick heavy oil reservoir.The core analysis,high-density well pattern and production monitoring data are used to quantitatively identify the interlayers in Xing VI Formation in Block Du84. The Wall method is adopted to determine the upper limit of interlay properties based on mercury intrusion and physical prop-erty analysis. The logging responses are combined to establish quantitative identification standard to characterize the interlayer distribution patterns in the lateral and longitudinal directions. Research indicates that the interlayers in this area mainly includes argillaceous and tight interlayers,which mainly distribute in the southeast of pilot area and the northeast of area with horizontal-well deployment in the plane and sporadically distribute in other areas. There are multiple interlayers for Sublayer 2 in the longitudinal direction,which shows high interlayer frequency and den-sity. Both steam flooding and gravity drainage and fracturing are used for the reservoir with interlayers,which could efficiently expand the swept volume of steam chamber and increase producible reserve. This research could provide certain guidance for improving the SAGD performance in heavy oil reservoir.关键词
特厚层稠油油藏/隔夹层/定量识别/最小流动孔喉半径/杜84块Key words
ultra-thick heavy oil reservoir/interlayer/quantitative identification/minimum flow pore-throat radi-us/Block Du84分类
能源科技引用本文复制引用
马成龙..特厚层稠油油藏隔夹层识别研究[J].特种油气藏,2018,25(2):111-115,5.基金项目
国家科技重大专项"渤海湾盆地辽河坳陷中深层稠油开发技术示范工程(二期)"(2011ZX05053) （二期）
