MICHAEL CONNELL
Nursing in Houston, TX

5485745, Jan 23, 1996

Sep 1, 1992

7/938622

Robert A. Rademaker - The Colony TX
John J. Goiffon - Dallas TX
Michael L. Connell - Houston TX
Walter K. Olszewski - Garland TX

Halliburton Company - Dallas TX

E21B 4700

73151

A downhole inspection tool is attached to the lower end of a length of coiled tubing having an electrical/fiberoptic cable threaded through the center. The coiled tubing carries a flow of optically clear and/or acoustically homogeneous fluid from a supply of such fluid at the surface. The tool itself includes a cable head subassembly module attached to the lower end of the coiled tubing and terminates the electrical and optical conductors within the cable. An inspection module for producing an electrical signal indicative of downhole conditions is detachably connected to the lower end of the cable head assembly module. An outer flow tube is mechanically connected to the inspection module and surrounds both of the modules to define an annular space therebetween. The flow tube has its upper end fluid coupled to the coiled tubing for conducting the flow of the optically clear and/or acoustically homogeneous fluid down along the annular space and out the lower end of the tool to create a region conducive to inspection by the tool.

5234053, Aug 10, 1993

Jul 16, 1992

7/914077

Michael L. Connell - Houston TX

Halliburton Geophysical Services, Inc. - Houston TX

E21B 1922, E21B 4100

166250

The present apparatus describes a mechanism used with a lubricatior used for straightening tubing inserted into a well during service operations. The injector incorporates multiple drive chains which carry gripping blocks or mechanisms for engaging the tubing and which provide direct measurement of the travel of the tubing as it is inserted. As tubing is inserted, a sprocket is rotated on engagement with the drive chain and it in turn rotates a shaft supporting a smaller sprocket engaged by a link chain with another sprocket. The various sprockets have selected teeth ratios to provide the requisite proportionate scaling of the system. The last sprocket drives a pulse generator which forms pulses proportionate to tubing insertion into the well.