蒸汽吞吐生产过程中CO产出超标原因分析——以红山油田为例

Cause analysis on excess production of carbon monoxide in cyclic steam stimulation process-Taking Hongshan Oilfield as example

针对红山油田蒸汽吞吐生产过程中一氧化碳产出浓度超标的问题,开展了实验研究,分析了反应温度、水油质量比、反应时间、储层矿物等因素对于一氧化碳产出浓度的影响。结果表明:反应温度的升高、水油比的减少、反应时间的减少均会使一氧化碳产出浓度上升,但造成红山油田生产过程中一氧化碳产出浓度超标的主要原因是红山油田地层岩石矿物对水气转换反应的催化能力不足,加入对水气转换反应具有催化能力的药剂可以降低一氧化碳产出浓度。

To solve the problem of excess production of carbon monoxide in cyclic steam stimulation process in Hongshan Oilfield,the corresponding laboratory study was conducted. The effect of reaction temperature,water / oil mass ratio,reaction time and rock minerals on production concentration of carbon monoxide was investigated. The results showed that all the increase of reaction temperature,the reduction of water / oil mass ratio and the reduction of reaction time promoted the increase of production concentration of carbon monoxide. However,the main cause of excess production of carbon monoxide in Hongshan oilfield is that the lack of catalytic capability of rock minerals in strata of Hongshan Oilfield to the water-gas shift reaction. The addition of agent which has the catalytic capability to the water-gas shift reaction can decrease the production concentration of carbon monoxide.