Rotliegend aeolian and fluvial sandstones are prolific gas reservoirs throughout the Southern Permian Basin (SPB). Exploration and research efforts concentrated on the sand-dominated southern flank of the SPB, where the major gas fields are located. The reservoir potential of the Rotliegend feather edge in the central part of the SPB, i.e. the area where the south-derived sands pinch out towards the Silver Pit salt lake, has long been underestimated. The sand-starved, claystone-dominated and evaporite-bearing lithology in the central part of the basin hampered the detectability of thin-bedded, potential reservoir sandstones with conventional well logs. The present study uses high-resolution well correlations in a sequence-stratigraphic framework. The employed methodology is a combination of pattern analysis (trends and trend changes) in gamma-ray (GR) logs, and maximum entropy-based (MEM-based) spectral trend curves of GR to graphically evaluate the validity of the pattern analysis. This allowed for the correlation of at least twelve individual thin-bedded sheets (1–2m thick) a 20–25m thick reservoir interval over distances larger than 20km. Core analysis has identified the sheets as unconfined fluvial terminal-splay sandstone. The facies characteristics and sedimentary architecture were corroborated in an outcrop analogue study of a present-day river system in the Altiplano Basin (Bolivia).


Article metrics loading...

Loading full text...

Full text loading...


  1. De Jong, M.G.G., Nio, S.D., Böhm, A.R., Seijmonsbergen, A.C. and De Graaff, L.W.S.
    [2009] Resolving climate change in the period 15–23 ka in Greenland ice cores: a new application of spectral trend analysis. Terra Nova, 21, 137–143.
    [Google Scholar]
  2. Donselaar, M.E., Cuevas Gozalo, M.C. and Moyano, S.
    [2013] Avulsion processes at the terminus of semi-arid fluvial systems: Lessons from the Río Colorado, Altiplano endorheic basin, Bolivia. Sedimentary Geology, 283, 1–14.
    [Google Scholar]
  3. Donselaar, M.E., Overeem, I., Reichwein, J.H.C. and Visser, C.A.
    [2011] Mapping of fluvial fairways in the Ten Boer Member, southern Permian Basin. The Permian Rotliegend in the Netherlands: SEPM Special Publication, 98,105–118.
    [Google Scholar]
  4. Nio, S.D., Böhm, A.R., Brouwer, J.H., De Jong, M.G.G. and Smith, D.G.
    [2006] Climate stratigraphy, Principles and applications in subsurface correlation. EAGE Short Course Series. EAGE Publications BV., Houten.
    [Google Scholar]
  5. Qayyum, F. and Smith, D.
    [2014] Integrated sequence stratigraphy using trend logs and densely mapped seismic data. First Break, 32, 75–84.
    [Google Scholar]
  6. Van Adrichem Boogaert, H.A. and Kouwe, W.F.P.
    [1994] Stratigraphic nomenclature of the Netherlands; revision and update by RGD and NOGEPA. Section D, Permian: Mededelingen Rijks Geologische Dienst, v. 50.
    [Google Scholar]
  7. Van Ojik, K., Böhm, A.R., Cremer, H., Geluk, M.C., De Jong, M.G.G., Mijnlieff, H.F. and Nio, S.D.
    [2011] The rationale for an integrated stratigraphic framework of the Upper Rotliegend II depositional system in The Netherlands. The Permian Rotliegend in the Netherlands: SEPM Special Publication, 98, 37–48.
    [Google Scholar]

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error