Z2 断块储层损害因素分析及预测技术研究

Analyzing and Forecasting of Formation Damage Factors of Block Z2

刘　红

Liu Hong

江苏油田地质科学研究院

Geologic Scientific Research Institute , Jiangsu Oilfield Company ,SINOPEC, Jiangsu 225009 , P. R. China

为了改善低渗透油田的开发效果并提高经济效益,在滚动开发的初期针对储层损害的潜在因素应采取有效的保护措施。以Z2 断块为例,在室内试验的基础上应用聚类分析等技术,分析储层特征及潜在伤害因素,研究水敏水锁损害形式和损害程度影响因素,并运用专家系统技术原理开发了江苏油田中低渗油藏储层伤害预测软件,为研究制定滚动开发油田早期的储层保护技术措施提供了方法和依据。

In order to improve development effect of low permeability reservoirs and enhance economic benefit , the effective measures have to be taken as early as possible to prevent formation damage according to its potential damage factors in the initial stage of progressive development . This paper , taking Block Z2 an example , will introduce how to apply cluster analysis and other technologies at the base of laboratory test to analyze reservoir characteristic and its potential damage factors , study style of water-sensitive , and water-blocked formation damage ,and apply the technology principle of expert system to develop the software of forecasting damage possibility of low-middle permeability reservoir , which is helpful to supply method and basis of making out the measure to prevent formation damage in the early phase of progressive development .