Nowadays, increasing amount of horizontal drilling due to their greater economic efficiency pushes the participants of the horizontal well construction to maximize costs reduction of the such wells construction. In turn reduction of the wells construction costs allows to increase economical efficiency of field development. Since the well placement process by itself is oriented on increasing horizontal wells drilling efficiency by maximization borehole NTG, the reduction of time expenditures, that affect the construction time of horizontal wells, makes this process even more efficient. Currently, each relogging procedure is performed on each horizontal wells in Rosneft Oil Company. Since the importance and necessity of this procedure has been repeatedly proved by the results of its performance, there is a need to optimize the time spent on it. At this moment, the oil and gas industry is actively using technologies for real-time data transfer between process participants. The geosteering process is no exception in this case. Real-time transmission of LWD data directly from the rig to the geosteering engineer during the drilling process using the WITSML protocol is widely used. The article observes the technology of LWD relogging in process of drilling horizontal wells by using real-time data transmission via WITSML channel, as well as the main advantages of this approach over the «traditional» LWD reclogging, which are achieved by reducing the productive time for this operation. If during the horizontal wells drilling process this operation is performed on regular basis (at all pull out of hole operations), the relevance of this procedure is multiplied.
