GEP  Vol.5 No.2 , February 2017
Defining Reservoir Quality Relationships: How Important Are Overburden and Klinkenberg Corrections?
Reservoir quality from cored intervals has traditionally been described by grouping similar intervals according to rock type. The main shortcoming of this static modelling approach is that it lacks clarity and it is not conducive for setting up a dynamic simulation model. The alternative is to use a modelling approach based on Hydraulic Flow Zone Units (HFZUs). First proposed in the late 1980s and extensively published in the early 1990s such formulation uses the well-known Carman-Kozeny (C-K) equation. More recently, this approach has been extended to cover a wider range of geological formations with diverse pore structure types. In using a HFZU approach, a pre-processing step is customarily undertaken to first overburden correct the data and where necessary also to correct for the Klinkenberg effect (lower permeability formations, lab testing with gas). The study presented compares corrected and uncorrected data sets, to see if correction alters the overall outcome of HFZU analysis. Specifically, data sets are compared at three different conditions: ambient, overburden (only) corrected and finally data that has been corrected for both, overburden and Klinkenberg effects. In all cases it is the Flow Zone Indicator (FZI), an index representative of formation quality that is tracked, together with the type of relationship. Several comparative analysis examples are given for diverse formations. The results show that uncorrected data can yield a different correlation and FZI, especially for intervals that include low permeability samples. Results indicate that Overburden and Klinkenberg corrections should be applied before HFZU analysis.
Cite this paper: Hoang, T. , Behrenbruch, P. and Huu, M. (2017) Defining Reservoir Quality Relationships: How Important Are Overburden and Klinkenberg Corrections?. Journal of Geoscience and Environment Protection, 5, 86-96. doi: 10.4236/gep.2017.52007.

[1]   Barr, D.C. and Altunbay, M. (1992) Identifying Hydraulic Units as an Aid to Quantifying Depositional Environments and Diagenetic Facies. Geology of Malaysia, Symposium Res. Evaluation/ Form. Damage, Kuala Lumpur, Malaysia.

[2]   Amaefule, J.O., Altunbay, M., Tiab, D., Kersey, D.G. and Keelan, D.K. (1993) Enhanced Reservoir Description: Using Core and Log Data to Identify Hydraulic (Flow) Units and Predict Permeability in Uncored Intervals/Wells. Proceedings of the ATCE, 3-6 October 1993, Houston, Texas, USA.

[3]   Kozeny, J. (1927) über Kapillare Leitung des Wassersim Boden. Sitzungsbe-richte: Royal Academy of Science, Vienna.

[4]   Carman, P.C. (1938) Fluid Flow through Granular Beds. J SocChemInd, 57, 225.

[5]   Carman, P.C. (1937) Fluid Flow through Granular Beds. AIChE, 15, 150.

[6]   Nooruddin, H., Hossain, M.E., Sudirman, S.B. and Sulaimani, T. (2001) Field Application of a Modified Kozeny-Carmen Correlation to Cha-racterize Hydraulic Flow Units. Proceedings of the Saudi Arabia Section Technical Sympo-sium and Exhibition, 15-18 May 2011, Al-Khobar, Saudi Arabia.

[7]   Behrenbruch, P. and Biniwale, S. (2004) Characterisation of Clastic Depositional Environments and Rock Pore Structures Using the Kozeny-Carman Equation: Australian Onshore and Offshore Sedi-mentary Basins. JOPSE, 2005.

[8]   Biniwale, S. and Behrenbruch, P. (2004) The Mapping of Hydraulic Flow Zone Units and Characterisation of Australian Geological Depositional Environments. Proceedings of the APOGCE, 18-20 Oct 2004, Perth, Australia.

[9]   Biniwale, S. and Behrenbruch, P. (2005) An Im-proved Approach for Modelling Geological Depositional Characteristics and Fluid Satura-tions by Using Hydraulic Units: Australian Offshore Fields. Proceedings of the SPWLA 46th Annual Logging Symposium, 26-29 Jun 2005, New Orleans, USA.

[10]   Behrenbruch, P., Do Huu, M.T. and Bui, K. (2017) Optimal Zonation of Geological Formations and Iden-tification of Pore Structures, including Variation in Cementation and Fining Sequences. Proceedings of the SPG, 26-28 Feb 2017, Sanya.

[11]   Klinkenberg, L.J. (1941) The Per-meability of Porous Media to Liquid and Gases. API Drilling and Production Practice, 200-213.

[12]   Florence, F.A., Rushing, J.A., Newsham, K.E. and Blasingame, T.A. (2007) Improved Pearmeability Prediction Relations for Low Permeability Sands. Proceedings of the Rocky Mountain Oil & Gas Technical Symposium, 16-18 April 2007, Denver, USA.

[13]   Hoang, T.G., Behrenbruch, P. and Do Huu, P. (2017) Correction of Laboratory Gas Permeability Measurements Using Klinkenberg Type Correction Models. Proceedings of the APPEA Conference and Exhibition, 14-17 May 2017, Perth, Australia.