特种油气藏2017，Vol.24Issue(1)：119-123,5.DOI:10.3969/j.issn.1006-6535.2017.01.024
海上油田多层合采井试井模型研究与应用
Development and application of well-test models for wells deployed for joint development of multiple layers in offshore oilfields
摘要
Abstract
With regard to difficulties encountered during interpretation of test data in some direction wells drilled in the BZ Oilfield, mathematic models for description of multi-layer seepage mechanisms have been re-constructed on bases of the multi-layer seepage physical model.Through separation of variables, distribution of flow rates in the borehole and instantaneous bottom-hole pressures under various mixtures of marginal conditions can be determined.In addition, theoretical charts for bottom-hole pressures have been generated.These charts may reflect 4 major flow stages: early after-flow, systematic radial flow, single-boundary response and multi-boundary mixed responses.Among them, curves for multi-boundary mixed responses are characterized by "hump" and "concave" configurations.By using the theoretical chart, test data of some difficult wells in the BZ Oilfield have been interpreted to determine various reservoir physical parameters and average skin factor, and eventually may provide theoretical support for management of low-efficiency wells.Relevant research conclusions may effectively promote application of well-test models for wells deployed for joint development of multiple layers in offshore oilfields.关键词
多层合采/海上油田/渗流力学/数学模型/试井解释/BZ油田Key words
joint development of multiple layers/offshore oilfield/fluid mechanics in porous medium/mathematic model/interpretation of well testing data/BZ Oilfield分类
能源科技引用本文复制引用
陈晓明,张建民,王月杰,雷源,常会江..海上油田多层合采井试井模型研究与应用[J].特种油气藏,2017,24(1):119-123,5.基金项目
"十二五"中国海洋石油总公司重大项目"陆相砂岩油田优化注水技术研究"(CNOOC-KJ125ZDXM06LTD-02) （CNOOC-KJ125ZDXM06LTD-02）
