Wells – Processes – With indicating – testing – measuring or locating
Patent
1995-03-17
1996-12-03
Tsay, Frank
Wells
Processes
With indicating, testing, measuring or locating
166 666, 175 40, E21B 4706
Patent
active
055798420
ABSTRACT:
A method and apparatus for acquisition of downhole well data such as bottomhole pressure, bottomhole temperature, etc. which is utilized in conjunction with other well equipment such as gravel packer tools especially for data acquisition at well depths that are ordinarily rendered inaccessible by tools and other equipment located within the well. An instrument housing is fixed to other well equipment and is provided with equalizing ports which are normally closed by a sealing collet element. As the instrument is run into the well and into the instrument housing its upper end establishes sealing with the instrument housing to isolate the data acquisition chamber thereof from the flow passage from the well servicing tool. As it is run into the housing, a collet actuator mechanism unseats the collet to equalize pressure internally of the instrument housing with the external fluid pressure environment. After the acquisition of well data has been concluded, as the instrument is withdrawn from the instrument housing the collet actuator stem will shift the collet from its unseated position back to its seated and sealed relation thereby preventing further communication of the external fluid environment with the internal chamber of the instrument housing.
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Baker Hughes Integ.
Dataline Petroleum Services, Inc.
Tsay Frank
LandOfFree
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