Facies Distribution and Petrophysical Properties of Shoreface-Offshore Transition Environment in Sandakan Formation, NE Sabah Basin

Autor:	M. Azfar Mohamed, A. Hadi A. Rahman, M. Suhaili Ismail, M. Firdaus Abd Majid
Rok vydání:	2017
Předmět:	Lower shoreface Outcrop Facies Petrophysics Low permeability Geochemistry Submarine pipeline Sedimentary rock Structural basin Geomorphology Geology
Zdroj:	IOP Conference Series: Earth and Environmental Science. 88:012023
ISSN:	1755-1315 1755-1307
DOI:	10.1088/1755-1315/88/1/012023
Popis:	Newly exposed outcrop of Miocene shallow marine sandstone in Sandakan Formation, allows characterization of the facies distribution and petrophysical properties of shoreface to offshore transition environment. Six facies are defined: (1) Poorly bioturbated Hummocky Cross Stratified (HCS) sandstone (F1), (2) Moderately bioturbated HCS sandstone (F2), (3) Well bioturbated HCS sandstone (F3), (4) Poorly bioturbated Swaley Cross Stratified (SCS) sandstone (F4), (5) Interbedded HCS sandstone with sand-silt mudstone, (6) Heterolithic mudstone. The sedimentary successions were deposited in upper to lower shoreface, and offshore transition environment. Facies F3, F4 and F5 shows good reservoir quality with good porosity and fair permeability values from 20% to 21% and 14 mD to 33 mD respectively. While Facies F1 exhibits poor reservoir quality with low permeability values 3.13 mD.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::30f42397bf50ec50e35100c962bfaaea https://doi.org/10.1088/1755-1315/88/1/012023 Zobrazit plný text záznamu