XXP-1固体消泡剂在川西气田的应用

针对目前液体消泡剂使用的局限性,川西气田引进了XXP-1固体消泡剂,在含泡沫液天然气进入分离器之前消除其携带的泡沫。在X5、XC6和XYHF-2井进行了现场试验。试验结果表明,XXP-1固体消泡剂对X5、XC6和XYHF-2气井水样具有较好的破泡、抑泡能力,平均破泡时间小于10s,平均抑泡时间大于6min。加注XXP-1固体消泡剂后,污水罐泡沫高度明显下降,站场月污水拉运量大大提高,天然气出站压力降低,接近管网压力。XXP-1固体消泡剂能有效消除携液天然气中的泡沫,提高分离器气液分离效率。

Application of XXP-1 solid defoaming agent in the western Sichuan gas field

Shanan oil field has the geological characteristics of high temperature, high salinity, low permeability and water sensitivity. In recent years, the production situation is more serious with the degree of water drive decreasing year by year. To improve this situation, the pilot test of gel polymer profile control and flooding technology was carried out in Shaqiu 5 wellblock of Shanan oil field. At first, the water well was made a full profile control with composite organic gel particles profile control agent with a tolerance of temperature and salt, and then oil displacement agent of 0.3% was injected for displacing oil. The Application result showed that this technology has the good effect in enhancing production of oil and precipitation with efficiency of 85.7% for 12 wells among tested 14 well times, and total oil increment was 3 069.6 t. Compared with non experimental area, the level of oil decline in experimental area decreased significantly. The way of profile control and flooding played an obvious role in controlling production of oil.