摘要
元坝礁滩圈闭主要为一岩性圈闭,礁滩相储层是控制该区海相油气分布、储量及产能的主控因素。采用物性与压汞参数相结合的储层分类评价方法分析表明,元坝长兴组礁滩相储层以Ⅱ、Ⅲ类储层为主,Ⅰ类储层次之。通过储层物性与产能之间的定性、定量关系分析指出:储层产能随储层物性变好,呈递增趋势。当储层以Ⅲ类储层为主时,测试以低产气层为主;当Ⅱ类储层占优势比例时,测试以中产工业气流为主;当储层物性整体较好且发育部分Ⅰ类储层时,测试主要产中—高产工业气流。
In Yuanba area,the Changxing bioreef-shoal trap is mainly a lithological one and the physical property of Changxing reservoir is also the main effect on deliverability.An evaluation method for reservoir classification,combining physical-property parameters and mercury-injection parameters,is used in this study.Results show that Changxing bioreef-shoal reservoirs can be mainly divided into II type and III type,second for I type.In addition,the relationship between physical property and deliverability is analyzed,which demonstrates that deliverability becomes better along with physical property.It is indicated from formation test that:(1)III type reservoir is mainly a gas layer with low yield;(2) some commercial gas with middle yield can be obtained from II type reservoir;and(3)commercial gas with middle to high yield can be obtained from I type reservoir.
出处
《天然气技术与经济》
2011年第4期29-32,78,共4页
Natural Gas Technology and Economy
关键词
物性参数
压汞参数
储层分类评价方法
产能
元坝
physical-property parameter,mercury-injection parameter,evaluation method for reservoir classification,deliverability,Yuanba area
