山东科技大学学报:自然科学版
山東科技大學學報:自然科學版
산동과기대학학보:자연과학판
Journal of Shandong Univ of Sci and Technol: Nat Sci
2012年
2期
10-17
,共8页
澳大利亚%Bonaparte盆地%沉积模拟%储层快速评价
澳大利亞%Bonaparte盆地%沉積模擬%儲層快速評價
오대리아%Bonaparte분지%침적모의%저층쾌속평개
Australian%Bonaparte basin%depositional simulation ~ fast reservoir evaluation
利用古环境、古生物年龄、钻井岩性、岩心等资料,应用DinosoS软件对澳欠利亚W区块的Elang—Frigate组进行了数值沉积模拟。研究区重点层位Elang-Frigate组共划分为3个层序,海平面为向上脉动加深变化形式,东南方为主要物源方向.通过各个层序的构造图以及井资料读取的各个层序的残露厚度,利用软件自动·趺复古地貌、古构造的功能,得到了相对真实的沉积背景,利用这些参数进行了三维数值模拟,进一步得到了本地区沉积体系的时空展布特征。结果显示,该区的三角洲-河口湾沉积体系,具有早期浪控、晚期潮控,近源扇三角洲、相对远源三角洲的复合型沉积特点。
利用古環境、古生物年齡、鑽井巖性、巖心等資料,應用DinosoS軟件對澳欠利亞W區塊的Elang—Frigate組進行瞭數值沉積模擬。研究區重點層位Elang-Frigate組共劃分為3箇層序,海平麵為嚮上脈動加深變化形式,東南方為主要物源方嚮.通過各箇層序的構造圖以及井資料讀取的各箇層序的殘露厚度,利用軟件自動·趺複古地貌、古構造的功能,得到瞭相對真實的沉積揹景,利用這些參數進行瞭三維數值模擬,進一步得到瞭本地區沉積體繫的時空展佈特徵。結果顯示,該區的三角洲-河口灣沉積體繫,具有早期浪控、晚期潮控,近源扇三角洲、相對遠源三角洲的複閤型沉積特點。
이용고배경、고생물년령、찬정암성、암심등자료,응용DinosoS연건대오흠리아W구괴적Elang—Frigate조진행료수치침적모의。연구구중점층위Elang-Frigate조공화분위3개층서,해평면위향상맥동가심변화형식,동남방위주요물원방향.통과각개층서적구조도이급정자료독취적각개층서적잔로후도,이용연건자동·부복고지모、고구조적공능,득도료상대진실적침적배경,이용저사삼수진행료삼유수치모의,진일보득도료본지구침적체계적시공전포특정。결과현시,해구적삼각주-하구만침적체계,구유조기랑공、만기조공,근원선삼각주、상대원원삼각주적복합형침적특점。
The numerical depositional simulation in Elang to Frigate formations of W block in Australia was presented by means of Dinosos software and by utilizing such data as paleoenvironment,paleontological age,borehole lithologic characters and cores,etc. The key horizon i. e. Elang to Frigate formations in study area was divided into three se- quence boundaries, step rising relative sea-level curve and major provenance in southeast direction, etc. Based on re- sidual strata thickness got from logging data and structural maps of each sequence, the sedimentary background was figured out by palaeostructure and palaeogeomorphology reconstruction. A 3-D numerical simulation was carried out by means of these parameters, further,obtaining the time-spatial distribution characters of depositional system in the area. The results show that the study area is characterized by a deltaic and estuarine depositional system with wave- dominant delta in the early stage and tide-dominant delta in the late stage. There are near provenance fan-delta sur- round local highs and far provenance delta along the bay axis.