In order to realize high efficiency development of offshore heavy oil field, the multiple thermal fluid huff and puff technology were put to test in NB35? oilfield, and the satisfactory effect was achieved. The method to calculation the heating range for multiple thermal fluid huff and puff well is presented. The heating range of the actual test well is also calculated by using the two different methods, and the calculation results are compared too. Finally, the application conditions and the adaptability of the two methods are analyzed. The research result can be used to guide the thermal recovery plan design for heavy oilfield in offshore.%为实现海上稠油油田的高效开发,在渤海南堡35-2油田开展了多元热流体吞吐矿场试验,并取得了显著的增产效果.开创了国内海上稠油热采的先例.分别推导了基于能量平衡及基于物质平衡原理的多元热流体吞吐井加热半径计算方法.并以试验井为例进行了计算.此外,对计算结果及两种方法的适应性进行了分析,为海上稠油热采方案设计起到了一定的指导作用.
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