Page 67 - Origin and Prediction of Abnormal Formation Pressures

FEET)
ABOUT
NO-UONTMORILLONITE
10.000
LEVEL (USUALLY
TO
9,000
HYDROCARBONS
LAYER
N THIS
MADE
BUT NO
OR
AVAILABLE
MIXED
FORYEO
MOST
ZONE
1-1
ILLlTE
my KAOLINITE AND ILLITE hydrocarbons from mudrocks. to release of deposited in marine environments and its probable relation
CURVE (Modified after Powers, 1967, fig. 3, p. 1245; in Rieke and Chilingarian, 1974, fig. 58, p. 11 1. Courtesy of Am. Assoc. Pet. Geol.)
WATER-ESCAPE MONTMORILLONITE various clays when
mi
of
1-1
OF POSITION CANNOT AS TO ALTERS IS BETWEEN DESOReEO FREE AS
SEVERAL MONOLAYERS UYOROGEN IN HELD MONTMORlLLONlTE IN SQUEEZED BE COMPACTION MONTMORlLLONlTE WATER ILLITE. HYDROGEN LAYERS IS UNIT ANOTRANSFERRED TO WATER POSITIONS. HYDROCARBONS
REMARKS BONDED WATER INTERLAYER WT BY PRESSURES. THAT BONDED INTERPARTICLE OVERBURDEN Fig. 2-17, Compaction history