Method of performing wireline perforating and pressure measureme

Details Method of performing wireline perforating and pressure measureme Method of performing wireline perforating and pressure measureme

1989-11-22

1990-11-20

Kisliuk, Bruce M.

Wells

Processes

Perforating, weakening, bending or separating pipe at an...

166113, 166250, 166381, 166385, E21B 4706, E21B 2900, E21B 2300

Patent

active

049711539

ABSTRACT:
A method of perforating includes lowering a perforator and attached pressure measurement gauge assembly into a wellbore on wireline until the gauge assembly touches a bottom of the wellbore. Continued lowering of the wireline into the wellbore produces a slack on the wireline, the slack allowing the perforator to disconnect from the gauge assembly. The perforator is pulled uphole until the perforator is within a predetermined distance from the gauge assembly. Further pulling of perforator uphole ceases. The perforator is ready to be detonated. When well fluid is produced from the formation, the gauge assembly, resting on the wellbore bottom, records the pressure of the well fluid flowing from the formation. The perforator is retrieved from the wellbore. When it is desired to retrieve the gauge assembly from the bottom of the wellbore, a retrieving assembly is lowered into the wellbore by either wireline or sandline, the retrieving assembly connecting to the gauge assembly. The gauge assembly is pulled uphole to the well surface and the pressure measurement records are read and further recorded.

REFERENCES:
patent: 3087552 (1963-04-01), Graham
patent: 4349072 (1982-09-01), Escaron et al.
patent: 4423625 (1984-01-01), Bostic, III. et al.
patent: 4506731 (1985-03-01), Skinner
patent: 4598771 (1986-07-01), Vann
patent: 4669537 (1987-06-01), Rumbaugh
patent: 4690214 (1987-09-01), Wittrisch
patent: 4718493 (1988-01-01), Hill et al.
patent: 4828051 (1989-05-01), Titchener et al.

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