Petrophysical parameters and modelling of the Eocene reservoirs in the Qadirpur area,Central Indus Basin,Pakistan: implications from well log analysis     

Miraj Khan  Mohammad Arif  Nowrad Ali  Mohammad Yaseen  Ammar Ahmed  Syed Mamoon Siyar 《Arabian Journal of Geosciences》2016,9(5):425

The Eocene rock units of the Qadirpur field, Central Indus Basin (Pakistan), are investigated petrophysically for their detailed reservoir characterization. The different petrophysical parameters determined include the following: true resistivity, shale volume, total porosity, effective porosity, density and neutron porosity, water and hydrocarbon saturation, bulk volume of water, lithology, gas effect, P-wave velocity, movable hydrocarbon index and irreducible water saturation and integrated with different cross-plots. The Eocene reservoirs are excellent with high effective porosity (2–32 %) and hydrocarbon saturation (10–93 %). Among these, the Sui Upper Limestone is an overall a poor reservoir; however, it has some hydrocarbon-rich intervals with high effective porosity and better net pay. All the net pay zones identified show low and variable shale volume (5–30 %). The secondary porosity has added to the total and effective porosities in these reservoirs. The main contributors to the porosity are the chalky, intercrystalline and vuggy/fracture types. The thickness of the reservoirs zones ranges from 4.5 to 62 m. These reservoirs are gas-producing carbonates with almost irreducible water saturation (0.002–0.01) and are likely to produce water-free hydrocarbons. The lower values of moveable hydrocarbon index (0.07–0.9) show that the hydrocarbons are moveable spontaneously to the well bore. The proposed correlation model shows that the reservoirs have an inclined geometry and are a part of an anticlinal trap.  相似文献   

Rock Physics Modeling and Reservoir Characterization to Estimate Hydrocarbon Zone of Cretaceous and Paleocene Strata and Subsurface Stratigraphic Correlation of Sulaiman Fold Belt to Sulaiman Depression     

Rehman  Saif ur  Umar  Muhammad  Ehsan  Muhammad Irfan  Munawar  Muhammad Jawad  Miraj  Muhammad Armaghan Faisal  Ullah  Muhammad Fahad 《Doklady Earth Sciences》2023,507(3):S446-S456

Doklady Earth Sciences - The research work involves rock physics modeling and reservoir characterization of Suliman fold belt to sulamain fold depression. This area is a brighter zone for...  相似文献   

Comparative Analysis of Salt Structures in the Southern North Sea,Dutch Offshore,the Netherlands     

Miraj  M. A. F.  Ali  A.  Ahsan  N.  Afgan  Sh.  Saleem  R. F. 《Geotectonics》2020,54(6):807-820

Geotectonics - Comparative analysis of three randomly chosen salt structures (diapir A, diapir B and diapir C) of the Southern North Sea has been presented through the interpretation and...  相似文献   

Subsurface Structure Analysis of the Southern North Sea     

Miraj  M. A. F.  Shahzad  S.  Munawar  M. J.  Ahsan  N.  Saleem  R. F.  Afgan  S. 《Geotectonics》2021,55(6):874-887

Geotectonics - The subsurface structure analysis of the Southern North Sea through the interpretation of 2D seismic data set (SNSTI-NL-87 and SNST-NL-83) is carried out. The subsurface structural...  相似文献