The DataLatch electrical wireline downhole recorder and transmitter system combines both downhole recording and surface readouts for well testing operations. It is built around a DGA gauge carrier and can support up to four UNIGAGE pressure gauges. Each gauge is powered and programmed individually and can be selectively ported to read the pressure above or below the test valve or in the annulus. In its simplest configuration-when only downhole recording is required-the DGA is run as a stand-alone gauge carrier, either above or below the packer. During surface readout operations, the DGA is run in conjunction with the LINC downhole electrical wireline connector. The data obtained by the DataLatch system are redundant, flexible, and high quality.
Typical job sequence
In a typical DataLatch system job, the gauges are programmed at the surface and the DataLatch system is run downhole with the drillstem test string. The gauges record the data as the well is being perforated, cleaned up, and drawn down. The well is then shut in and the LINC running tool (LRT) is run on wireline to retrieve the recorded data for analysis. A decision can then be made either to continue or to end the test. If the test continues, the gauges are reprogrammed for additional flow periods, and the LRT is pulled out of the hole.
Request More Information
|