Oil & Gas Geology ›› 1987, Vol. 8 ›› Issue (2): 177-188.doi: 10.11743/ogg19870211
Previous Articles Next Articles
Qiu Fukang, Zhang Guodong
Received:
Revised:
Online:
Published:
Abstract:
To interprete sedimentary environment, it is necessary to master the three foundamental elements with marking features: amplitude, shape and assemnlage. Accondng to the analysis and comparison on the petroliferous series in the Gaoyou Depression, North Jiangsu, the curves' shape and sequence assem-blages of subaqueous alluvial fan, delta, fluvial and deep-water turbidite fan aresummarized as below: 1.Subaqueous alluvial fan: From bottom to top, SP appears to be a sequence assemblage changed from low-amplitude, serrated tank shape or positive serrated shape to middle-high amplitude serrated box shape or bell (funnel)shape to low-amplitude reverse serrated shape; R changes from dense serrated high resistance to serrated high-middle resistance and then disperse serrated middle-low resistance. 2.Delta: The logs of regressive constructive deltas show that the appears to be a sequence assemblage changing from smooth line associated with low-middle amplitude funnel shape to funnel, finger or box shapes of middle-high amplitude to box or bell shape of middle-high amplitude,and R is relatively low. 3.Fluvial: Land-based rivers are developed gradually from braid channels to meandering channels; SP shows shapes from box with fine sawtooth to bellor separated box to bell assemblage maintained by middle amplitude. R changes from serrated middle-high value to middle-lower value. 4.Deep-water turbidite fan: These curves are difficult to be distinguished from that of subaqueous alluvial fan, it is therefore necessary to see about its occurrence location.
Qiu Fukang, Zhang Guodong. LOG CATEGORIES AND ENVIRONMENTAL INTERPRETATION——EXAMPLE WITH THE MAIN PETROLIFERONS SERIES OF THE OAOYOU SAO, NORTH JIANGSU[J]. Oil & Gas Geology, 1987, 8(2): 177-188.
0 / / Recommend
Add to citation manager EndNote|Reference Manager|ProCite|BibTeX|RefWorks
URL: http://ogg.pepris.com/EN/10.11743/ogg19870211
http://ogg.pepris.com/EN/Y1987/V8/I2/177