Development technology and application status of marginal oilfield offshore
China's offshore marginal oil fields have abundant resources,but the single well production is small,abundance is low,reserves are small,and location is remote.At the same time,they are difficult to develop due to the large investment in offshore engineering.The development technology of marginal oilfield is discussed from three aspects:engineering construction,drilling technology and completion technology.The principles and application status of marginal oilfield development technologies such as simple single pile wellhead platform technology,mobile oil production platform technology,single wellbore multi-well drilling technology,underwater wellhead tie back technology,extended reach well drilling technology,fishbone drilling technology,monobore well completion technology,single well multi-purpose completion technology,heavy oil thermal recovery technology are described in detail.It is pointed out that economic factor is the core problem of marginal oilfield development.It is necessary to innovate the engineering operation mode and simplify the drilling and completion process according to the actual situation,reducing the operation cost from the aspects of management,technology,flow and so on,and improving the marginal oilfield economic benefit.
Offshore marginal oil fieldsDevelopment technologyApplication status
NETL
NSTL
万方数据
维普
