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中文摘要：
采用流温法和米采油指数法综合评价渤海N油田多元热流体热采井有效期。结合热采井实际生产动态数据,采用统计法分别进行同层位冷热采井开发效果对比和第一、二轮次开发效果对比。在有效期内,热采井产能整体优于冷采井,是冷采产能的1.5-2.0倍;第二轮次开发中的气窜、地层能量亏空等问题导致开发效果较差,单井产能仅达到第一轮次开发的70%。
英文摘要：
The integrated evaluation method had been first adopted to evaluate validity of multi - thermal fluid of Bohai N oilfield by using bottom hole temperature and productivity index data, and based on the actual dynamic data of thermal production, the statistical method had been adopted to compare development effectiveness the production of thermal recovery well and adjacent normal production well in the same layer and thermal effectiveness between the first cycle and the second one. The results show that oil production of thermal well are 1.5 to 2 times as normal production well. By comparison with the first and second cycles, development effectiveness of the second cycle is worse due to gas migration and energy depletion, the valid period and production of thermal well is 0.7 times as the first cycle.
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