丁继伟
DING Jiwei

• 1:大庆油田有限责任公司勘探开发研究院

摘要(Abstract)：

表外储层是砂岩向泥岩演化的过渡性岩相,非均质性强、物性差异大,二次加密调整后部分表外储层仍难以动用。为提高表外储层挖潜程度,基于岩心水洗分析、压汞、测井资料等,以长垣Ⅰ类独立表外、Ⅱ类独立表外储层为研究对象,分析在当前开发条件下表外储层的动用难易程度。通过确定当前开发条件的表外储层分类物性、含油性标准,并采用"岩心刻度测井"技术,优选反映储层特征的测井曲线参数,分区块、油层组建立DLS系列和0.2 m系列测井分类方法。表外单采试验区结果表明:单井的产液强度随射孔厚度中易动用厚度比例的增大而增大;测井解释为难动用的表外储层注入比例较低,注水强度也较低,分类结果和生产动态实际较为吻合。该方法可为表外储层剩余油挖潜提供有效技术支撑。
Untabulated reservoirs are the transitional lithofacies from the sandstone reservoirs to mudstone ones, which are characterized by rather strong heterogeneity and big difference of the physical properties, and moreover the partial untabulated reservoirs are still difficult to develop after the secondary infilling adjustment. To improve the potential-tapped degree of the untabulated reservoirs, based on the water-flooded core analysis, mercury injection, logging data and so forth, taking Class I and II independent untabulated reservoirs as the study object, the degree of the developed difficulty was analyzed for the reservoirs under the current development conditions. By determining the classifying standards of the physical and oil-bearing properties for the reservoirs under the conditions, with the help of the "core calibration logging" technique. the logging curve parameters were optimized to response the reservoir characteristics, and furthermore the logging classifying methods were established for Series DLS and Series 0.2 m according to the blocks and oil groups. The results of the untabulated single-production test block show that the liquid production strength of the single well increases with the rise of the easy-to-develop thickness proportion; the well logging interpretation show that both the injected percentage and strength are rather lower for the difficult-to-develop untabulated reservoirs, the classified results conform to actual dynamic production performances. The method can provide effective technical support for tapping the potentials of the remained oil in the untabulated reservoirs.

关键词(KeyWords)： 表外储层;岩心刻度测井;曲线优选;储层分类;含油产状
untabulated reservoir;core calibration logging;curve optimization;reservoir classification;oil occurence

Abstract:

Keywords:

基金项目(Foundation): 国家科技重大专题“大型油气田及煤层气开发”(2011ZX05010-002)

作者(Author): 丁继伟
DING Jiwei

DOI: 10.19597/j.issn.1000-3754.201809016

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