| 摘要 |
A mud pulse landing assembly ( 10 ) which allows for the removal of the mud pulse generator ( 16 ) containing the mud pulse orifice ( 106 ), thus creating an unobstructed passageway for any tool or instrumentation that may need to be passed through the drill string. The retainer ( 14 ) of the mud pulse landing assembly also provides a universal mount for engaging alternate tools or instrumentation for use in analyzing the borehole geology. The retainer ( 14 ) is positioned between the mud pulse generator ( 16 ) and the landing sub body, so as to protect the retainer from the turbulent and abrasive mud flow, and to prevent obstruction of the area downstream of the compact muleshoe ( 60 ).
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