What is sequence stratigraphy?
Sequence stratigraphy is defined as the study of rock relationships within a chronostratigraphic framework of repetitive genetically related strata bounded by surfaces of erosion or deposition or their correlative conformities.
Why is sequence stratigraphy important for petroleum?
Sequence stratigraphic techniques provide (1) a more effective method for evaluating reservoir system continuity and trend directions and (2) improved methods for predicting reservoir system, source, and sealing facies away from well control.
What is an example of stratigraphy?
Stratigraphic studies deal primarily with sedimentary rocks but may also encompass layered igneous rocks (e.g., those resulting from successive lava flows) or metamorphic rocks formed either from such extrusive igneous material or from sedimentary rocks.
What is stratigraphy in oil and gas?
1. n. [Geology, Reservoir Characterization] The study of the history, composition, relative ages and distribution of strata, and the interpretation of strata to elucidate Earth history.
What is sequence stratigraphy PDF?
Sequence stratigraphy is a methodology that employs stratal stacking patterns and key bounding surfaces to erect a framework allowing depositional facies to mapped and interpreted paleogeographically.
What is Stratal packaging pattern?
Stratal stacking patterns refer to the architecture of the sedimentary rock record, and are key to the model-independent sequence stratigraphic methodology. Stratal stacking patterns define systems tracts, and changes in stratal stacking pattern define sequence stratigraphic surfaces.
What is a stratigraphy in geology?
Stratigraphy is they classification of different layers or layering of sedimentary deposits, and in sedimentary or layered volcanic rocks. This field is important to understanding the geological history and forms the basis for classification of rocks into distinct units that can be easily mapped.
What is stratigraphy anthropology?
Stratigraphy is the science of rock layering, with particular concern for composition, geographic distribution, and geological and chronological importance. This discipline also involves the interpretation of rock strata in terms of mode of origin and geologic history.
What are stratigraphic principles?
The principles on which the stratigraphic studies are based include order of superposition, original horizontality, lateral continuity, cross-cutting relationships, inclusions, unconformities, fossil succession, uniformitarianism and catastrophism.
What is Parasequence in sequence stratigraphy?
SEQUENCE STRATIGRAPHY The parasequence is the fundamental building block of a sequence. A parasequence is a relatively conformable succession of genetically related strata bounded by marine flooding surfaces. It is normally a progradational or aggradational package that reflects a shoaling-upwards trend.
What is depositional sequence in geology?
A depositional sequence is defined as a relatively conformable succession of genetically related strata bounded by subaerial unconformities or their correlative conformities.
What is TST in sequence stratigraphy?
A transgressive systems tract (TST) is bounded by maximum regressive surface at the base and maximum flooding surface at the top. This systems tracts forms when the rate of sedimentation is outpaced by the rate of sea level rise in the sea level curves.
What is a Ravinement surface?
Abstract. The wave-ravinement surface (WRS) is a surface of sequence-stratigraphic significance that forms in shallow-water settings during transgression. It develops progressively landward during shoreface retreat due to wave action, which erodes the substrate and leads to sediment bypass in the offshore direction.
What is exploration sequence?
Geological exploration follows a sequence of multidisciplinary activities: reconnaissance, discovery, prospecting, and economic mining.