摘要
偶极横波远探测测井采用四分量的偶极子发射器和接收器,不但能确定反射体与井筒的距离,还能确定其方位。X油田的岩心资料显示地层中有裂缝、孔洞发育,油藏上下是否连通没有定论,故按层状边水油藏进行设计和开发,但有些井的生产情况表现为块状油藏特点。尝试用偶极横波远探测资料、岩心资料、气测录井等资料解决地层中发育的裂缝、孔洞能否连通上下地层的问题获得成功,证明储层裂缝和孔洞可以形成上下连通通道,并通过后续钻井证明已经有地层流体通过该通道实现了向上流动。应用分析认为偶极横波远探测技术在较好地用于探测地层裂缝和孔洞同时证明X油田为块状油藏。
Dipole shear-wave imaging logging is a new technique which can be used to detect fractures,vugs and other geological body.It used four-component dipole transmitter and receiver.It can be used to measure both the distance to the borehole and the azimuth of the reflecting body.In X oilfield,the core data indicated fractures and vugs developed in the formation.However,it is not conclusive whether the top and bottom of reservoirs are connected by fractures and vugs.Therefore,some reservoirs are designed and developed according to the edge water reservoir.But the production data in some well exhibit the behavior of massive oil reservoir.Therefore,in order to solve the problem that if fractures and vugs can connect to the upper and lower reservoirs,this paper attempts to solve the problem with dipole shear-wave imaging logging,core data,gas logging and other data.The method proves that the fracture and vugss developed in the reservoir can form an effective communication channel,and subsequent drilling also proves that the formation fluid has flowed upward through the channel.According to the application analysis,the dipole shear-wave imaging logging can be used to detect formation fractures and vugs,and it is also proved that X oilfield is a massive reservoir.
作者
武卫锋
刘树巩
WU Weifeng;LIU Shugong(CNOOC Energy Technology&Services Limited,Beijing 100027,China;CNOOC International Limited,Beijing 100027,China)
出处
《测井技术》
CAS
CSCD
2018年第6期695-700,共6页
Well Logging Technology
关键词
偶极横波远探测测井
裂缝
水淹
低孔隙度
低渗透率
块状油藏
dipole shear-wave imaging logging
fracture
water flooding
low porosity
low permeability
massive oil reservoir
