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方法应用客积法、产量特征法和数值模拟法，对辽河油区杜66块、齐40块、高3块三种典型的稠油油藏蒸汽吞吐开发合理井距及经济极限井距进行了计算研究。目的有效地提高储量动用程度，提高蒸汽吞吐阶段采收率；为同类油藏的合理开发提供依据。结果利用容积法计算杜66块、齐40块、高3块的合理开距分别是123．3、125．0、105．4m；利用产量特征法计算三个区块的合理井距分别是111.6、109．5、113．0m；利用数值模拟法计算三个区块的合理井距分别是100、100、1051。结论三种计算方法适用可行；综合确定三个区的经济极限井距分别为86．7、89．9、67．7m；在目前正方形井网格局已定的情况下，杜66块、齐40块、高3块的合理井距分别是100、100、105m。
Methods By using the product plot method, the yield characteristic method and the numerical simulation method, the rational well spacing and economic limit well spacing for steam huff and puff in three typical heavy oil reservoirs of Du 66, Qi 40 and Gao 3 in Liaohe Oil Region were studied Computational research. Objective To effectively increase the utilization rate of reserves and enhance the recovery rate during the steam huff and puff phase; provide the basis for the rational development of similar reservoirs. Results According to the volumetric method, the reasonable open distances of Du 66, Qi 40 and Gao 3 are 123.3, 125.0 and 105.4 m, respectively. The reasonable well spacing of the three blocks calculated by the yield characteristic method is 111.6 , 109.5,113.0m respectively. The reasonable well spacing for calculating three blocks by numerical simulation is 100,100,1051 respectively. Conclusions The three calculation methods are feasible and feasible. The economic limit well spacing of the three areas is determined to be 86.7, 89.9 and 67.7 m respectively. Under the current situation that the square well pattern has been set, Du 66 and Qi 40 Blocks, high three reasonable well spacing is 100,100,105 m.