石油实验地质2009，Vol.31Issue(5)：495-499,5.
大牛地气田下二叠统叠合气藏开发地质特征
DEVELOPMENT GEOLOGICAL CHARACTERISTICS OF THE LOWER PERMIAN OVERLAPPING GAS RESERVOIRS IN DANIUDI GAS FIELD
摘要
Abstract
The Lower Permian overlapping gas reservoirs in Daniudi Gas Field consist of P_1s~1, P_1s~2, P_1x~1, P_1x~2 and P_1x~3. The gas reservoirs are overlapped each other vertically and intersected horizontally. The gas reservoir type is low permeable and dense sandstone lithologic gas reservoir, which has the constant volume and elastic drive. P_1s~1 and P_1s~2 gas reservoirs are mainly delta plain subfacies distributary channel sand body deposition and P_1x~1, P_1x~2 and P_1x~3 gas reservoirs are mainly fluvial braided channel sand body deposition. The natural gas from P_1x~2 and P_1x~3 gas reservoirs are dry gas and the rest are wet. The Lower Permian overlapping gas reservoirs are large gas reservoirs with lower abundance, mid-deep and medium-low yielding. Adoptting natural depletion development mode, it showed that single-well production of P_1x~3 and P_1s~1 gas reservoirs is relatively high with fairly stable production, P_1x~2 gas reservoir takes second place and the single-well production of P_1x~1 and P_1x~2 gas reservoirs is relatively low. Multi-layer producing may increase production of single-well and intermission production is favorable for stable yielding and enhancing recovery of gas reservoir. Recognition to the geological characteristics of Lower Permian overlapping gas reservoirs is the basis of making gas field producing programs and developping gas reservoir scientifically, reasionablly and efficiently.关键词
开发地质特征/叠合气藏/下二叠统/大牛地气田/鄂尔多斯盆地Key words
development geological characteristic/ overlapping gas reservoir/ Lower Permian/ Daniudi Gas Field/ Ordos Basin分类
能源科技引用本文复制引用
段春节,陈路原,吴汉宁..大牛地气田下二叠统叠合气藏开发地质特征[J].石油实验地质,2009,31(5):495-499,5.基金项目
国家自然科学基金项目(40374020). （40374020）
