横山地区长6油藏储层特征研究

Characteristics Chang 6 Reservior Structure in Hengshan Region

横山地区具备良好的石油地质条件和油气勘探前景。多年来的勘探成果表明,在横山县南部500平方千米范围内油气显示比较普遍,局部具有富集成藏的良好条件,目前已经在三叠系延长组长2和长6层获得油气突破,并控制了较大的含油面积,成为横山采油厂近年来的主力开发和上产层位。区内长2层已经动用完毕并获得了很好的开发效果。长6油层含水较高,初产一般较高,但递减迅速。为了有效解决长6油层递减速度过快的问题,加深油藏储层特征的认识程度显得非常有必要。

Hengshan regions have good geological conditions for oil and gas exploration prospects.Exploration results over the years shows the common phenomenon that traces of oil and gas in 500 km2 in the southern Hengshan and good conditions for a rich reservoir integration.Now oil and gas has been get in layer chang 2 and layer chang 6,and the production areas controlled large oil-bearing area,and the production areas become the main development and production region.Layer Chang 2 has been developed completely and has get economic benefits.Chang 6 oil water content is high.Chang 2 production is generally higher in early,However,the production decline faster.In order to solve the poroblem,study on the characteristics of reservoirs is very necessary.