Practical Predictions of Reservoir Quality and Porosity Depth Curves
The oil industry has a practical need to be able to predict the properties of reservoir rocks ahead of drilling. When planning petroleum production the rock properties between the wells…
Prediction of Reservoir Quality
It is important to distinguish between sandstones of different primary composition: Volcanoclastic sandstones may vary greatly in composition depending on the volcanic source and the depositional environments. Basic volcanic rocks…
Meteoric Water Flow and Mineral Dissolution
Meteoric water is rainwater which infiltrates the ground. Initially this water is distilled water and therefore undersaturated with respect to all minerals. The reactions between meteoric water and the land…
Importance of Biogenic Activity
Bioturbation plays an important role in changing the textural composition of the sediments after deposition. The burrowing organisms eat mud and thereby oxidise organic matter and physically destroy the primary…
Mechanical Weathering
Igneous and metamorphic rocks which have been formed at many km depth at higher temperatures and pressures are not stable when exposed at the surface. When uplifted and unloaded the…
Clay Minerals
A number of minerals are referred to as clay minerals because they predominantly occur in the finest grain-size fraction (clay fraction) of sediments and sedimentary rocks. However, this is not…
Isotopes
A number of elements occur in nature as different isotopes: the atomic number (protons) is constant but there are different numbers of neutrons. They therefore have the same chemical properties…
Sedimentary Geochemistry
The composition and physical properties of sedimentary rocks are to a large extent controlled by chemical processes during weathering, transport and also during burial (diagenesis). We can not avoid studying…
The Future of Petroleum Geoscience
Petroleum geoscience is geology and geophysics applied to petroleum exploration and production. In this book we will try to show the wide range of disciplines that are relevant and useful…
Oil Reserves – How Long Will Conventional Oil Last?
In the last 40–50 years we have had a discussion about how long the oil reserves will last and the famous geologist M. King Hubbert predicted in 1956 that oil…
