Want an Edge on the Competition? Thermal data provide vital welltest diagnostics. Subsurface pressure recorder data includes corresponding sensor temperature data, a vital but underused resource for diagnostics. Welltest 105: Thermal focuses on observations and diagnostics
New to Gas Field Operations? Surface pressure data are a valuable resource. Surface pressure recorders are deployed by the same team that runs Acoustic Well Sounders, often in conjunction. Surface data recorders can also have channels for Production Testing,
New to Oil Field Operations? Acoustic Well Sounders (AWS) help estimate bottomhole pressures in pumping wells. Acoustic well sounders and surface pressure recorders are installed, operated, and maintained by surface data crews, often in conjunction.
New to petroleum Welltesting? Production Testing services clean up and flow test wells. Production testing teams operate a range of equipment from simple one-man flow provers to complicated four-stage separation and multi-phase metering manned 24/7 by tandem crews.
New to the term Wireline? Wireline services run welltest pressure instruments. Slickline operators, equipment, tools, and instruments are intrinsic to petroleum welltesting. Welltest 101: Wireline focuses on topics related to wireline (slickline) deployment of subsurface pressure
Did you know that Mini-Frac’ or Diagnostic Fracture Injection Tests (DFIT) can “Double For Initial Tests” in Alberta if subsurface pressure recorders are installed long enough. Formation leak-off data can be extrapolated to a p* acceptable for AER Initial
Did you know that Alberta gas wells with deliverability over 300 e3m3/d require multi-rate or isochronal flow tests? Moreover, but little known, is that: if you didn’t do a multi-rate test, but did do a pressure build-up test, and
Did you know there are several alternate or unconventional welltesting methods for achieving AER Initial Pressure requirements? Perforation inflow or injection tests, fracture injection or fall-off, and formation leak-off tests are some examples. Just a little known TechTip…
Did you know Pressure Transient Analysis (PTA) can extrapolate a reservoir pressure (p*) to satisfy AER Initial Pressure requirements? You don’t have to conform with the “2 kPa Rule.” Engineering can move your completion operations along faster and more
Did you know that AER Annual well testing requirements can often be satisfied from surface? Acoustic Well Sounders (AWS) are common in oil fields, and surface pressure recorders are acceptable in dry gas pools. Just a little TechTip hint…