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方法运用湿饱和蒸汽汽水两相流在井口相分离及离子测定技术、热力学流动特性及热传递原理，研制出稠油井口蒸汽干度取样装置；优化选择适应新疆浅层稠油井场注汽管网特点的保温条件。目的解决目前国内稠油井口蒸汽干度不能广泛监测的问题；减少注汽管线热损失和压力损失，提高蒸汽分配系统中蒸汽干度；为油藏合理评价和管理提供依据。结果在克拉玛依油田九区稠油油藏进行了现场试验，结果表明，井口干度取样装置测量误差≤3％，另外，通过对保温结构进行优化，井口蒸汽干度损失平均为3．85％，管线热损失平均为8．23％。结论该井口干度取样装置测量误差小，造价低廉，安装简便，工艺可行。通过对保温条件进行优化，降低了蒸汽在管道输送中的热损失和干度损失，全面实现了石油天然气总公司下达的“八九八七”系统工程各项指标。
Methods The wet-saturated steam-water two-phase flow in the wellhead phase separation and ion measurement technology, thermodynamic flow characteristics and heat transfer principle, developed a heavy oil wellhead steam dryness sampling device; optimized selection of Xinjiang shallow heavy oil well field injection steam pipe network Characteristics of the insulation conditions. Aim To solve the problem that the current domestic heavy oil wellhead steam dryness can not be widely monitored, to reduce the heat loss and pressure loss of the steam injection pipeline, to increase the steam dryness in the steam distribution system and to provide the basis for the rational evaluation and management of the reservoir. Results Field experiments were carried out on the heavy oil reservoirs in the nine districts of Karamay Oilfield. The results show that the measurement error of the sampling device for the wellhead dryness is ≤3%. In addition, by optimizing the thermal insulation structure, the average dryness loss of wellhead steam is 3.85% Pipeline heat loss averaged 8.23%. Conclusion The wellhead sampling device has the advantages of small measurement error, low cost, easy installation and feasible process. By optimizing the heat preservation conditions, the heat loss and the dryness loss of the steam in the pipeline are reduced, and various indicators of the “8989” system project promulgated by the Oil and Natural Gas Corporation are fully realized.