改善超稠油高周期吞吐效果的技术研究及应用

辽河油田曙一区超稠油蒸汽吞吐进入高轮阶段后,存在着吞吐效果变差,周期产油量下降、吨油成本上升等问题.在认真分析了影响高轮井开发效果的主要因素后,有针对性地提出并采取了组合式吞吐、间歇蒸汽吞吐、多元式吞吐等多种技术对策,打破了以往单一的吞吐模式,提高了热利用率,改善了高轮井吞吐效果.这些技术措施对其它超稠油和稠油油藏开发是有借鉴作用.

The Technical Study and Application of Improving the Effect of Steam Stimulation in Latter Cycles for Super Heavy Oil

Ever since super heavy oil producers in Shu1 area of Liaohe oilfield entere latter cycles of steam huff and puff, there exist some problems that steam huff and puff effect gets worse, oil production is decreasing, and its costs producing per ton are increasing. However, after analyzing the main factors carefully that influence the effect of developing in latter cycles well, many kinds of technical methods such as combination steamhuff and puff, intermittent steam huff and puff, multi-form steam huff and puff are given and applied, thus, single steam huff and puff module are broken through, the use of heat efficiency is raised, and the effectiveness of steam huff and puff in latter cycles is improved. These measures provide a reference to develop super heavy oil reservoirs and heavy oil reservoisr in other areas.