Wellbore Tubular Length Determination Using Pulse-Echo Measurements

摘要

Systems and methods are disclosed for obtaining distance-related wellbore parameters using pulse-echo measurements. For example, the depth of a wellbore may be computed and/or the length of a tubular string positioned in a wellbore may be determined.

主权项

1. A method comprising:
transmitting a first fluid pulse along a wellbore using a first pulse generator; receiving the first fluid pulse at a first sensor positioned along the tubular; in response to the received first find pulse, transmitting a second thud pulse back along the wellbore to a second sensor using a second pulse generator positioned along the tubular; receiving the second fluid pulse at the second sensor; determining a total travel time for the first and second fluid pulses; and determining a length along the tubular based upon the total travel time.