UM1004 | MRO-00011 05/21 Rev.0 DCO-016875
4
1.0
INTRODUCTION
The patented LORD J-28348-64 MWD Tool Axial Isolator is designed for service in air, foam, or mud drilling operations.
Its use and maintenance requirements are summarized in this document.
2.0
FUNCTION
The LORD J-28348-64 MWD Tool Axial Isolator (herein referred to as the Isolator) is designed to protect the sensitive
electronics in an MWD string by isolating these components from broad frequency vibrations. The isolator will also
attenuate shock inputs.
3.0
ASSEMBLY INTO MWD/LWD TOOL STRING
3.1
Mechanical
The Isolator has been designed to be assembled and disassembled to MWD String with 1-7/8 inch (1.875 inch) diameter
friction wrenches and/or friction vise.
Figure 1: 1-7/8" Friction Wrench
3.2
Pressure Conduit
The Isolator is designed to be used as fluid conduit for use with a pulser.
3.3
Location in MWD String
The Isolator has been designed to support the MWD string and be located directly between the pulser driver and lower
end.
Figure 2: Axial Isolator Location in MWD String