Implementation of Advanced Acoustic Telemetry System Adds Value and Efficiency to Well Testing Operations

Abstract

Abstract In the past, in order to acquire real time, bottomhole SRO (surface read-out) data, either a downhole latching system or a download probe in close proximity to the transmitting device had to be used. An innovative SRO system that takes advantage of state-of-the-art developments in acoustic technologies, wireline, and wireless transmission, and yet, is compatible with tools conventionally used during drill stem test operations has now been introduced to the industry. This acoustic data-acquisition system provides access to real-time bottomhole data using either a wireline-deployed probe or via wireless acoustic signals sent through the production tubing. If the probe is used, this does not have to be close to the transmitting device in order to transfer the data to surface. Since the system offers the option of transmitting via wireline or via the wall of the testing pipe, the need for a probe or latching device along with the inherent problems that sometimes occur because the probe becomes stuck in the latch or mechanically fails can be eliminated. Finally, the additional rig time required for preparation and running of the probe to move the Acoustic Telemetry System (ATS) transmitter up to proper depth is saved, reducing operational costs.