The Integration And Fusion Of Multi-source Data For Geosteering

As the exploration and development of oil and gas had a constant development and continuous extension scale,the conventional oil and gas resources available for development have been scarce.The exploration and development of complicated reservoirs such as small scale reservoir,fault block oil field,thin oil reservoir,remaining reservoir of depleted reservoir,receives more and more attention.Traditional drilling technology cannot lead drill to find reservoir in complex geological structure and keep it drilling in the reservoir.Geosteering drilling can effectively control the trend of well trajectory,and timely adjust the location of well trajectory and reservoir.So geosteering drilling technology has been an important means of the exploration and development of complicated reservoirs.The process of exploration and development of complicated reservoirs will produce a lot of multi-source data.In order to take full advantage of geosteering,it is necessary to integrate and fuse multi-source data.We researched the methods modeling wellbore which have equable or unequable radius,and achieved the visualization of geological properties using imaging principle,based on the well inclination data and well logging data getting from LWD.Then we combined together the 3D wellbore model and the imaging information,which means showing the drilling stratum attributes in the wall of the wellbore.Then through level matching and attribute consistent processing,to implement the fusion of digital wellbore and 3D geological data volume.Finally realized the system of multi-source data integration and fusion for geosteering in OpendTect platform,and presented the design idea and implementation method of each function module.This system completed the integration and fusion of multi-source data through the construction of wellbore model and the fusion of wellbore model and geologic model,facilitating the geosteering work.