Technology Applications Case Studies Publications News Careers About Us Seismic The use of Distributed Acoustic (DAS) for seismic and micro-seismic data acquisition is a rapidly developing arena. Ziebel’s20,000 foot long rod can act as 20,000 microphones spread along the wellbore to provide unrivaled imaging. For Vertical Seismic Profiling (VSP) there is no requirement to spend significant time deploying a wireline geophone array in stations along the wellbore. One vibrator sweep can be captured along the entire wellbore instantly, allow the time for stacking significantly more sweeps. For micro-seismic Z-system can be run into an offset well on the pad enabling acquisition only hundred’s of feet from the actual fracture initiation rather than thousands of feet for surface or vertical well acquisition. © Copyright 2018 Ziebel Design by Studio98

Technology Applications Case Studies Publications News Careers About Us Well Interference Understanding how pad wells connect with each other in an unconventional field development is critical. Surface pressures will give some indication but Ziebel’s Z-system has clearly shown that interaction can be significantly more complex with differing impacts along the wellbore. By adding on additional days sensing to a Ziebel flow evaluation program, nearby wells can be toggled on and off to determine where and how wells interfere with each other. The DAS images show how the production in the sensing well changes when a nearby well is shut-in. The change in flow is not uniform along the wellbore. In some cases shutting in a nearby well increases production from some stages and reduces it from other stages. As an add-on to Ziebel’s flow allocation service, well interference testing can help operators optimize their well spacing. © Copyright 2018 Ziebel Design by Studio98