PowerPoint PresentationSlide 2Slide 3Slide 4Slide 5Slide 6Slide 7Slide 8Slide 9Slide 10Slide 11Slide 12Slide 13Slide 14Slide 15Slide 16Slide 17Slide 18Slide 19Slide 20Slide 21Slide 22Slide 23Slide 24Slide 25Slide 26Slide 27Slide 28Slide 29Slide 30Slide 31Slide 32Slide 33Slide 34Slide 35Slide 36Slide 37Slide 38Slide 39Slide 40Slide 41Slide 42Slide 43Slide 44Slide 45Slide 46Slide 47Slide 48Slide 49Slide 50Slide 51Slide 52Slide 53Slide 54Slide 55Slide 56Slide 57Slide 58Slide 59Slide 60Slide 61Slide 62Slide 63Slide 64Slide 65Slide 66Slide 67Slide 68Slide 69Slide 70Slide 71Slide 72Slide 73Slide 74Slide 75Slide 76Slide 77Slide 78Slide 79Slide 80Slide 81Slide 82Slide 83Slide 84Slide 85Slide 86Slide 87Slide 88Slide 89Slide 90Slide 91Slide 92Slide 93Slide 94Slide 95Slide 96Slide 97Slide 98Slide 99Slide 100Slide 101Slide 102Slide 103Slide 104Slide 105Slide 106Slide 107Slide 108University of Georgia Department of Geology GEOL 4320/6320 Petroleum GeologySeals and ReservoirsIV. Characterization of reservoirsUniversity of Georgia Department of Geology GEOL 4320 Petroleum GeologyReservoirs and SealsI. Simple Seals II. Buoyancy and upward migration III. FaultsIV. Characterization of reservoirsA. Porosity1. Definition: Porosity (): ratio of pore space to total rock volume (usually as a %) “Void ratio” (e) is an engineering expression of porosity whereUniversity of Georgia Department of Geology GEOL 4320 Petroleum GeologyReservoirs and SealsI. Simple Seals II. Buoyancy and upward migration III. FaultsIV. Characterization of reservoirsA. Porosity1. Definition: Porosity (): ratio of pore space to total rock volume (usually as a %) “Void ratio” (e) is an engineering expression of porosity whereUniversity of Georgia Department of Geology GEOL 4320 Petroleum GeologyReservoirs and SealsI. Simple Seals II. Buoyancy and upward migration III. FaultsIV. Characterization of reservoirsA. PorosityFor anyone interested in movement of fluids, isolated pores areirrelevant, and what matters is “effective” porosity consisting ofinterconnected pores.Effective porosity is what allows permeability.University of Georgia Department of Geology GEOL 4320 Petroleum GeologyReservoirs and SealsI. Simple Seals II. Buoyancy and upward migration III. FaultsIV. Characterization of reservoirsA. PorosityFor anyone interested in movement of fluids, isolated pores areirrelevant, and what matters is “effective” porosity consisting ofinterconnected pores.Effective porosity is what allows permeability.University of Georgia Department of Geology GEOL 4320 Petroleum GeologyReservoirs and SealsI. Simple Seals II. Buoyancy and upward migration III. FaultsIV. Characterization of reservoirsA. PorosityFor anyone interested in movement of fluids, isolated pores areirrelevant, and what matters is “effective” porosity consisting ofinterconnected pores.Effective porosity is what allows permeability.University of Georgia Department of Geology GEOL 4320 Petroleum GeologyReservoirs and SealsI. Simple Seals II. Buoyancy and upward migration III. FaultsIV. Characterization of reservoirsA. Porosity2. Categorization of pores:Petrologically: By size:University of Georgia Department of Geology GEOL 4320 Petroleum GeologyReservoirs and SealsI. Simple Seals II. Buoyancy and upward migration III. FaultsIV. Characterization of reservoirsA. Porosity2. Categorization of pores:Petrologically: By size:University of Georgia Department of Geology GEOL 4320 Petroleum GeologyReservoirs and SealsI. Simple Seals II. Buoyancy and upward migration III. FaultsIV. Characterization of reservoirsA. Porosity2. Categorization of pores:Petrologically: By size:University of Georgia Department of Geology GEOL 4320 Petroleum GeologyUniversity of Georgia Department of Geology GEOL 4320 Petroleum GeologyUniversity of Georgia Department of Geology GEOL 4320 Petroleum GeologyUniversity of Georgia Department of Geology GEOL 4320 Petroleum GeologyUniversity of Georgia Department of Geology GEOL 4320 Petroleum GeologyUniversity of Georgia Department of Geology GEOL 4320 Petroleum GeologyUniversity of Georgia Department of Geology GEOL 4320 Petroleum GeologyUniversity of Georgia Department of Geology GEOL 4320 Petroleum GeologyUniversity of Georgia Department of Geology GEOL 4320 Petroleum GeologyUniversity of Georgia Department of Geology GEOL 4320 Petroleum GeologyUniversity of Georgia Department of Geology GEOL 4320 Petroleum GeologyUniversity of Georgia Department of Geology GEOL 4320 Petroleum GeologyUniversity of Georgia Department of Geology GEOL 4320 Petroleum GeologyUniversity of Georgia Department of Geology GEOL 4320 Petroleum GeologyUniversity of Georgia Department of Geology GEOL 4320 Petroleum GeologyUniversity of Georgia Department of Geology GEOL 4320 Petroleum GeologyUniversity of Georgia Department of Geology GEOL 4320 Petroleum GeologyUniversity of Georgia Department of Geology GEOL 4320 Petroleum GeologyUniversity of Georgia Department of Geology GEOL 4320 Petroleum GeologyUniversity of Georgia Department of Geology GEOL 4320 Petroleum GeologyUniversity of Georgia Department of Geology GEOL 4320 Petroleum GeologyUniversity of Georgia Department of Geology GEOL 4320 Petroleum GeologyUniversity of Georgia Department of Geology GEOL 4320 Petroleum GeologyUniversity of Georgia Department of Geology GEOL 4320 Petroleum GeologyUniversity of Georgia Department of Geology GEOL 4320 Petroleum GeologyUniversity of Georgia Department of Geology GEOL 4320 Petroleum GeologyUniversity of Georgia Department of Geology GEOL 4320 Petroleum GeologyJaime Toro UWV class filesUniversity of Georgia Department of Geology GEOL 4320 Petroleum GeologySelley 1998University of Georgia Department of Geology GEOL 4320 Petroleum Geology$University of Georgia Department of Geology GEOL 4320 Petroleum GeologyUniversity of Georgia Department of Geology GEOL 4320 Petroleum GeologyReservoirs and SealsI. Simple Seals II. Buoyancy and upward migration III. FaultsIV. Characterization of reservoirsA. Porosity3. Trends in porosity:across the broad range of sediment sizes:Between small particles, electrostaticinter-particle repulsions cause greatporosity.Compaction of fine sedimentsexpels large quantities of water,which either moves upward oroutward through the basin and/orcause overpressure.University of Georgia Department of Geology GEOL 4320 Petroleum GeologyIV. Characterization of reservoirsA. Porosity3. Trends in porosity:within sands: Little/no variation in