Field maintenance and repairing technology for baker wireless LWD system

Baker Hughes wireless logging while drilling(LWD) system has advanced geologic steering function,and has been the preferred measurement while drilling(MWD) tool for horizontal wells and extended reach wells.However,limited by field maintenance tools and processes,apparatus need to be returned to the manufacturer where they break down,which results in shutdown of drilling operation.Based on upgrading maintenance supports on site,adding a couple of rotation wheels and a couple of vertically moving wheels,and lengthening the stroke of lifting devices,the apparatus can realize horizontal movement and rotation at the same time,which solves the problem of connecting MWD and M30 contact pin in field maintenance.A set of special technologies suitable for field maintenance are designed to solve the problem that there is a lack of precision maintenance and test equipments.This enables field maintenance and repairing technology for LWD system to be more prefect.The technology has been successively applied to five wells in Huabei and Jidong Oilfields.Field application shows that field maintenance process can fully meet the requirement for maintenance of LWD system.