Robotics for Horizontal Image Acquisition in Ultra Slim Wells in Saudi Arabia

摘要

The cost savings that are possible by sidetracking existing wellbores make the drilling and completion of ultra slim lateral wells very desirable. Obtaining image logs from horizontal wells, less than 6" diameter, has always been a challenge, because the size of conventional borehole imaging tools that currently exist on the market are simply too large. In addition, conventional deployment methods limit efficient rig time utilization and ultimately lead to higher cost. New conveyance and logging technology from Welltec(the Well Tractor) and Weatherford (The Compact Micro Imager – CMI) allows operators to obtain excellent image logs in slim wells as small as 3" in diameter. Image logs are required to properly understand fracture details and to help in future drilling and completion decisions. This paper describes the logging operational experience of the CMI and the world's first slim hole imaging logs in Saudi Arabia deployed by the wireline tractor 218XR (XR: Extended Reach) in an open hole horizontal section.