%0 Journal Article
%T ORDOVICIAN UNDER-SALT RESERVOIRS AND FORMING CONDITIONS OF GAS POOLS IN EASTERN ORDOS BASIN<br>鄂尔多斯盆地东部奥陶系盐下储层及成藏条件分析
%A Research Institute of Petroleum Exploration &
%A Development
%A PetroChina
%A Beij ing
%A China
%A <br>夏明军
%A 郑聪斌
%A 戴金星
%A 邹才能
%A 汪泽成
%A 王兰萍
%J 天然气地球科学
%D 2007
%I 
%X O1m5^7, O1m5^9, the upper O1m4 member, O1m2^1 and O1m2^2 are the five reservoirs located below the salt of the Ordovician Majiagou formation in eastern Ordos basin. The porosity of these reservoirs is generally low, but they have a relatively high permeability. Observation from the under-salt exploration wells demonstrates that the under-salt dolomite take on an obvious phenomenon of hydrocarbon generation and accumulation. Carbonaceous asphalt fills the dissolved reservoirs, and there are excellent source-reservoirseal association and various types of traps. Having these geologic conditions of forming under-salt gas pools, the under-salt dolomite is a new favorable gas exploration area.
%K Eastern Ordos basin
%K Under-salt
%K Reservoir
%K Hydrocarbon generation
%K Trap<br>鄂尔多斯盆地东部
%K 盐下
%K 储层
%K 生烃
%K 圈闭
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=E8CFCA71B77A2FF3&jid=ACDC74B90F609E2435847898490F3647&aid=683408F4B8470040&yid=A732AF04DDA03BB3&vid=13553B2D12F347E8&iid=0B39A22176CE99FB&sid=02DC3A182A5530DF&eid=3D9746C06EC12B45&journal_id=1672-1926&journal_name=天然气地球科学&referenced_num=0&reference_num=9