Petrophysical logs contribute in appraising productive sands of Lower Goru Formation, Kadanwari concession, Pakistan
Abstract The interpretation of petrophysical logs unveil the reservoir traits and augment an intuition of hydrocarbon (gas) bearing zones. This study focused on interpretation of petrophysical signatures (encountered in Kadanwari-01, 03, 10 and 11) of Lower Goru Formation (LGF). LGF composed of shor...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2018-06-01
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| Series: | Journal of Petroleum Exploration and Production Technology |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/s13202-018-0472-1 |
| _version_ | 1797998492016181248 |
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| author | Muhammad Jahangir Khan Haris Ahmed Khan |
| author_facet | Muhammad Jahangir Khan Haris Ahmed Khan |
| author_sort | Muhammad Jahangir Khan |
| collection | DOAJ |
| description | Abstract The interpretation of petrophysical logs unveil the reservoir traits and augment an intuition of hydrocarbon (gas) bearing zones. This study focused on interpretation of petrophysical signatures (encountered in Kadanwari-01, 03, 10 and 11) of Lower Goru Formation (LGF). LGF composed of shoreface sands and near shelf shale, deposited in Cretaceous age in middle and lower Indus basins, Pakistan. The results upshot the reservoir potential tapped in interbeded sand packages of LGF. The petrophysical attributes such as shale content from radioactivity tools (GR, SGR), effective porosity from NPHI-RHOB response and average porosity, derived fluids saturation of porous sand reservoir pockets by averaging, the Wyllie–Rose permeability of the selected producing zones and matching of respective resistivity responses (LLD, LLS) quantified in LGF. Lithology indicator (M–N plots) and mineral identification (MID) plot provide a basis to classify the lithology of potential sands derived by neutron, density and sonic logs. The isoperimetric surfaces depict the spatial distribution of derived results of the corresponding prospect zone (PZ). A correlation from NE to SW of study area yields a lateral profile of physical characters and distribution of PZs. Prospect Zone-3 results exhibit good quality of reservoir sands (30–37 m thick), characterizing $${\phi }_{\text{ND}}$$ ϕND from 0.12 to 0.23 and S hc 0.36–0.6. PZ-3 and PZ-4 are evaluated best prospect zones in this study and may be recommended for drilling. |
| first_indexed | 2024-04-11T10:49:39Z |
| format | Article |
| id | doaj.art-372069c2b5814323aa561a843456a311 |
| institution | Directory Open Access Journal |
| issn | 2190-0558 2190-0566 |
| language | English |
| last_indexed | 2024-04-11T10:49:39Z |
| publishDate | 2018-06-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of Petroleum Exploration and Production Technology |
| spelling | doaj.art-372069c2b5814323aa561a843456a3112022-12-22T04:28:56ZengSpringerOpenJournal of Petroleum Exploration and Production Technology2190-05582190-05662018-06-01841089109810.1007/s13202-018-0472-1Petrophysical logs contribute in appraising productive sands of Lower Goru Formation, Kadanwari concession, PakistanMuhammad Jahangir Khan0Haris Ahmed Khan1Department of Earth and Environmental Sciences, Bahria University (Karachi Campus)Department of Earth and Environmental Sciences, Bahria University (Karachi Campus)Abstract The interpretation of petrophysical logs unveil the reservoir traits and augment an intuition of hydrocarbon (gas) bearing zones. This study focused on interpretation of petrophysical signatures (encountered in Kadanwari-01, 03, 10 and 11) of Lower Goru Formation (LGF). LGF composed of shoreface sands and near shelf shale, deposited in Cretaceous age in middle and lower Indus basins, Pakistan. The results upshot the reservoir potential tapped in interbeded sand packages of LGF. The petrophysical attributes such as shale content from radioactivity tools (GR, SGR), effective porosity from NPHI-RHOB response and average porosity, derived fluids saturation of porous sand reservoir pockets by averaging, the Wyllie–Rose permeability of the selected producing zones and matching of respective resistivity responses (LLD, LLS) quantified in LGF. Lithology indicator (M–N plots) and mineral identification (MID) plot provide a basis to classify the lithology of potential sands derived by neutron, density and sonic logs. The isoperimetric surfaces depict the spatial distribution of derived results of the corresponding prospect zone (PZ). A correlation from NE to SW of study area yields a lateral profile of physical characters and distribution of PZs. Prospect Zone-3 results exhibit good quality of reservoir sands (30–37 m thick), characterizing $${\phi }_{\text{ND}}$$ ϕND from 0.12 to 0.23 and S hc 0.36–0.6. PZ-3 and PZ-4 are evaluated best prospect zones in this study and may be recommended for drilling.http://link.springer.com/article/10.1007/s13202-018-0472-1Petrophysical analysisReservoir evaluationLower Goru FormationKadanwari |
| spellingShingle | Muhammad Jahangir Khan Haris Ahmed Khan Petrophysical logs contribute in appraising productive sands of Lower Goru Formation, Kadanwari concession, Pakistan Journal of Petroleum Exploration and Production Technology Petrophysical analysis Reservoir evaluation Lower Goru Formation Kadanwari |
| title | Petrophysical logs contribute in appraising productive sands of Lower Goru Formation, Kadanwari concession, Pakistan |
| title_full | Petrophysical logs contribute in appraising productive sands of Lower Goru Formation, Kadanwari concession, Pakistan |
| title_fullStr | Petrophysical logs contribute in appraising productive sands of Lower Goru Formation, Kadanwari concession, Pakistan |
| title_full_unstemmed | Petrophysical logs contribute in appraising productive sands of Lower Goru Formation, Kadanwari concession, Pakistan |
| title_short | Petrophysical logs contribute in appraising productive sands of Lower Goru Formation, Kadanwari concession, Pakistan |
| title_sort | petrophysical logs contribute in appraising productive sands of lower goru formation kadanwari concession pakistan |
| topic | Petrophysical analysis Reservoir evaluation Lower Goru Formation Kadanwari |
| url | http://link.springer.com/article/10.1007/s13202-018-0472-1 |
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