PETROLOGY OF SEDIMENTARY ROCKS : By : SAM BOGGS, JR. (2025)

Petrology of Sedimentary Rocks

Petrology_of_Sedimentary_Rocks.pdf

Tucker 2003. Sedimentary Rocks in the field

Sediments, Reservoirs, and Deposits

Sediments and sedimentary rocks are an important, but unfortunately an often-ignored, aspect of petroleum geology and hence petroleum recovery operations. Knowledge of the geology and mineralogy of a reservoir or deposit leads to deriving the means by which to find and penetrate the reservoir (or deposit), which would be sorely lacking and, most likely, cause problems for recovery. In addition, such knowledge is advantageous when in situ upgrading is considered as a process option during recovery. The minerals might well (hopefully) exhibit beneficial catalytic activity on the in situ upgrading process or, on the other hand, the minerals might have an adverse effect on the process chemistry and physics. It is the purpose of this chapter to introduce the reader to the concept of sediments, reservoirs, and deposits and the means by which these geological features originate and are formed.

Sedimentary Rocks in the Field THIRD EDITION

Editorial note (Journal of Sedimentary Environments)

Geology and Geophysics in oil Exploration -by : Mahmoud Ahmed sroor

Capturing Key Attributes of Fine-Grained Sedimentary Rocks In Outcrops, Cores, and Thin Sections: Nomenclature and Description Guidelines

Journal of Sedimentary Research, 2015

Fundamentals of Petroleum Geology Physical Geology Chapter 5 Fundamentals of Petroleum Geology

The initial step in acquiring a board understanding of the drilling technologies is the development of some basic understanding of petroleum geology. To understand some of the engineering requirements in oil field drilling operations requires a comprehension of the nature of the formation to be drilled. Historically, geological studies have been concentrated in the area of the utilization of geological data as a means of locating formations having economic value. The following discussion is intended to provide the geological background needed for sound well planning and engineering. Specifically, this discussion will include information concerning the theory of the origin of subsurface formation, composition of formation, formation structural differences and rock mechanics. Simply stated, the intent of this section is to answer some of the basic questions concerning the nature of the formation being drilled, such as: How were rocks formed? What are they made of? How are they structured? How do rocks behave when a hole is drilled in them? 5.1 Physical Geology Relatively few of the problems of geology are so simple that they can be solved by one method of approach. Many geologic problems require supplementary investigation using the methods, data, and theories of chemistry, biology, physics and engineering. In turn, geology has contributed data and ideas to these bordering sciences. In the natural sciences, progress in one advances all the others. Physical geology is concerned with the physical processes that operate on and within the Earth-the processes that have given the rocks of the Earth's crust their composition and structure, and the forces that have shaped its surface. Many separate sciences contribute to the broad field of physical geology. Among the more important are: mineralogy, the science of minerals; petrology, the science of rocks; structural geology, the science which seeks to interpret the structures seen in the rocks; and geomorphology, the science which deals with the origin of landscapes. Also closely associated with physical geology is historical geology, the science that traces the evolution and development of the Earth and its plants and animals. This science draws extensively on paleontology, which deals with the study of animals and plants of the geologic past. It also draws on stratigraphy, the science

Sedimentary Structures

This chapter describes the internal megascopic features of a sediment. These are termed sedimentary structures, and are distinguished from the microscopic structural features of a sediment. Sedimentary structures are divided into primary and secondary classes. Primary structures are those generated in a sediment during or shortly after deposition, whereas secondary sedimentary structures are those that form sometime after sedimentation. The chapter discusses various examples of both primary and secondary structures. Primary sedimentary structures are divisible into inorganic structures, and organic structures. The observation, interpretation, and classification of inorganic sedimentary structures are considered. The chapter describes two basic approaches to observe sedimentary structures. The first approach is to pretend the outcrop is a borehole and to measure a detailed sedimentological log. This records a vertical section of limited lateral extent. The second method is to create a two-dimensional survey of all, or a major part, of the outcrop.