摘要
为了实现快速评价压裂效果、预测压后产能的目的,首次提出基于射孔后破堵、压裂压降数据的试油全周期动态评价方法。针对试油排采时间短、制度变化快、油气水多相流动、流动非稳态等特点,通过生产数据分析,实现了压后返排瞬态产量分析,精确表征压裂裂缝导流能力,结合关井压力资料综合分析,最终形成联合压裂停泵压降解释、生产数据分析、压力恢复测试的试油全周期动态评价方法。该方法应用于准噶尔盆地玛中区块玛X井,获取了对储层供液能力及边界范围、裂缝发育情况和基质物性合理的解释结果,为区块油藏储量申报及产能建设提供了有力支撑。
For purpose of rapidly evaluating the fracturing effect and predicting the post-frac productivity,a dynamic evaluation method for the full cycle of oil testing based on the data of plugging breaking and fracturing pressure drop after perforation was proposed for the first time.Considering the characteristics of short oil testing drainage time,rapid system change,oil-gas-water multiphase flow,and unsteady flow,through the analysis of production data,the transient production analysis of flowback after fracturing was realized,and the conductivity of induced fractures was accurately characterized.Combined with the comprehensive analysis of shut-in pressure data,a dynamic evaluation method for the full cycle of oil testing was finally developed by integrating interpretations of fracturing pump shutdown pressure drop,production data analysis,and build-up testing.This method was applied to Well Ma X in the Mazhong block of the Junggar Basin,providing reasonable explanations for reservoir fluid supply capacity,boundary range,fracture development,and matrix properties,effectively supporting reservoir reserve declaration and production capacity construction.
作者
张文全
郝晓波
李雪彬
方云贵
杜连伟
陈雪茹
ZHANG Wenquan;HAO Xiaobo;LI Xuebin;FANG Yungui;DU Lianwei;CHEN Xueru(Well Testing Company of XDEC,Karamay,Xinjiang 834000,China;Exploration Division of Xinjiang Oilfield Company,Karamay,Xinjiang 834000,China)
出处
《油气井测试》
2023年第3期69-73,共5页
Well Testing
关键词
动态评价
压裂效果
产能预测
压裂压降
生产数据
压力恢复测试
瞬态产量
导流能力
dynamic evaluation
fracturing effect
productivity prediction
fracturing pressure drop
production data
build-up test
transient production
conductivity
