Know-how interfaced to offer imaging while drilling
Sperry Drilling Services, a brand of Halliburton’s Drilling and Formation Evaluation division, and IntelliServ Inc., a wholly owned subsidiary of Grant Prideco Inc., all of Houston, have interfaced their know-how and successfully tested a system using IntelliServ network drillstring telemetry to transfer all the data and information generated by downhole drilling and formation evaluation tools to the surface in real time.
The firms say the data transfer is achieved at rates as much as 10,000 times those available today.
Use of the IntelliServ network, which is fully compatible with Sperry’s INSITE logging-while-drilling services, offers new drilling and formation evaluation capabilities, including transmission of high-resolution images of the subsurface in real time.
Today’s drilling rates can be limited by the transmission speed of high volume data collected during the drilling and evaluation process, Sperry Drilling Services notes. With the IntelliServ technology, this limitation is eliminated while also enabling a new range of logging-while-drilling services.
Halliburton and IntelliServ Inc. have entered into an agreement to market and deploy their respective technologies globally to joint customers.
Source: Halliburton, 5 Houston Center, 1401 McKinney, Houston, TX 77010.
New safety device for welding
The new pressure-sensitive Super 85 welding safety device meaures about 33 by 150 mm, suiting it to most applications.
If a back pressure or flashback should occur, the unit’s pressure-sensitive cutoff valve interrupts the gas supply in a fraction of a second to prevent explosive mixtures from forming. A red warning ring indicates the safety device has operated, the company points out.
Once the cause of the operating fault has been rectified, the user restarts gas flow by sliding back the housing sleeve.
The Super 85’s flame arrester is made of sintered chrome-nickel steel. Protection against contamination from the gas supply is provided by a filter fitted to the gas inlet, which can be changed by the user.
Source: Witt-Gasetechnik GMBH & Co. KG, Salinger Feld 4-8, 58454 Witten, Germany.