摘要
针对大庆油田长垣人工裂缝为水平缝的重复压裂井,以葡萄花油田为研究对象,初步界定了重复压裂选井选层工艺方法;应用试井分析和流动指数方法判断重复压裂时机;经过研究找出了重复压裂井裂缝失效的主要原因。根据裂缝失效的原因,确定了增大施工规模、酸洗裂缝以及多裂缝、开新缝压裂等项改造措施。结合理论研究在葡萄花油田现场试验,取得较好效果。
Considering the artificial fracture as the refracture upon the horizontal seam,Putaohua oilfield is taken as the target and the following tasks have be done: define well and stratum selection method for refracturing;determine the refracturing time with well test analysis and flow index method;find out the main cause of refracturing failure.Based on the cause of refracturing failure,operation scale improvement and adjusted treatments are adopted,such as acid washing fracture,multi-fracture fracturing and new fracture fracturing.Combined with the theoretical research,Putaohua oilfield pilot test is proved successful.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2005年第6期71-73,共3页
Petroleum Geology & Oilfield Development in Daqing
关键词
水平裂缝
重复压裂
选井选层方法
压裂时机
酸洗压裂
horizontal seam
refracturing
well and stratum selection method
fracturing time
acid washing fracture
