高升油田厚层稠油油藏吞吐后期火驱开发存在问题探讨

高升油田属于典型厚层块状稠油油藏,至2008年已进入开发后期,平均单井日产油不足1 t,因此于2008年5月开展火驱现场试验,目前已实施高3618和高3两个开发单元共48个井组,5年来通过对火驱开发过程中注采动态跟踪与调控,取得了较好开发效果,但也反应出火线推进不均、掺稀油举升工艺不适应、高温腐蚀等诸多问题,制约着火驱开发效果的进一步提高,为此提出了下步在火驱理论研究和工艺配套方面的攻关研究方向。

Existing problems discussion of thick layer of heavy oil reservoir at late stage of huff and puff in Gaosheng oilfield

Gaosheng oilfield belongs to a typical thickmassive heavy oil reservoir and has entered the late period of development in 2008,with average daily oil production of less than 1 t per well.Fire flooding field test has been carried out in May,2008.At present,two development units,Gao-3618 and Gao-3,48 well groups in all have been implemented.Through injection-production dynamic tracking and regulation during the development process of fire flooding in five years,agood development effect has been obtained.But it also reflects many problems such as uneven fire wire propulsion,the maladjustment of mixing thin oil lifting technique,high temperature corrosion problems and etc,restricting the further development effect of fire flooding.Therefore,the research direction of theory research and technology of fire flooding for the next step has been proposed.