堵水调剖工艺在文南油田的应用

Application of Water Plugging and Profile Control Technologies in Wennan Oilfield

在文南油田进入注水开发后期,油井产水和水井漏失严重影响着油田的产量,为了降低油井的产水率和水井的无效注水,需要实施油井堵漏和水井调剖措施。针对文南油田,从调剖堵水施工的工艺过程入手,具体分析了调堵剂的筛选、在施工过程中油套压力的变化、影响施工成功率的因素,最后提出了作者的建议。

During the later period of waterflood development in Wennan oilfield, producting water of oil well and dropout of water well seriously affect production of oil field. In order to deduct the water production rate of the oil well and the non - effective injection of the water well, water plugging of the oil well and profile control of the water well need be carried out. Aiming at Wennan oil field, beginning with the process of the operation technology of profile control and water plugging, selection of plugging agent, change of tubing pressure and casing pressure during the process were analyzed, factors to affect success rate were discussed. Finally, some suggestions were put forward.