stratigraphic traps

Aug 14th, 2016
Studypool Tutor
Price: $5 USD

Tutor description

Word Count: 2074
Showing Page: 1/26
Depositional TrapsStratigraphic trap geometry is due to variations in lithology. These variations may be controlled by theoriginal deposition of the strata, as in the case of a bar, a channel or a reef. Alternatively, the change maybe post-depositional as in the case of a truncation trap, or it may be due to diagenetic changes.For reviews on the concept of stratigraphic traps, the reader is referred to Dott and Reynolds (1969) andRittenhouse (1972). Major sources of specific data on stratigraphic traps can be found in King (1972),Busch (1974), and Conybeare (1976).Levorsen (1967) defines a stratigraphic trap as "one in which the chief trap-making element is somevariation in the stratigraphy, or lithology, or both, of the reservoir rock, such as a facies change, variablelocal porosity and permeability, or an upstructure termination of the reservoir rock, irrespective of thecause."Stratigraphic traps are harder to locate than structural ones because they are not as easily revealed byreflection seismic surveys. Also, the processes which give rise to them are usually more complex thanthose which cause structural traps.A broad classification of the various types of stratigraphic traps can be made. However, classifying trapshas its limitations because many oil and gas fields are transitional between clearly-defined types.Table 1 ,Table 1(Classification of stratigraphic type hydrocarbon traps) based on the scheme proposed by Rittenhouse(1972), shows that a major

Review from student

Studypool Student
" Thanks, good work "
Ask your homework questions. Receive quality answers!

Type your question here (or upload an image)

1823 tutors are online

Brown University





1271 Tutors

California Institute of Technology




2131 Tutors

Carnegie Mellon University




982 Tutors

Columbia University





1256 Tutors

Dartmouth University





2113 Tutors

Emory University





2279 Tutors

Harvard University





599 Tutors

Massachusetts Institute of Technology



2319 Tutors

New York University





1645 Tutors

Notre Dam University





1911 Tutors

Oklahoma University





2122 Tutors

Pennsylvania State University





932 Tutors

Princeton University





1211 Tutors

Stanford University





983 Tutors

University of California





1282 Tutors

Oxford University





123 Tutors

Yale University





2325 Tutors