化学剂吞吐与油井堵水结合技术研究  

A new technique by combining chemicals huff and puff technique with water shutoff in oil well

作　　者：才程[1] 岳湘安[2] 赵福麟[3] 

机构地区：[1]中国石油勘探开发研究院油田化学所,北京100083 [2]中国石油大学提高采收率研究中心,北京102249 [3]中国石油大学石油工程学院,山东东营257061

出　　处：《石油学报》2006年第3期70-74,共5页Acta Petrolei Sinica

基　　金：中国石油化工集团公司科技攻关项目(KFP02001017)"化学剂吞吐与油井堵水结合技术研究"成果

摘　　要：将化学剂吞吐技术与油井堵水技术相结合的新化学剂吞吐技术能提高化学剂吞吐技术中化学剂的使用效率,充分地发挥了这两种技术的优点,提高了油藏采收率。新化学剂吞吐技术主要包括吞吐剂筛选、堵剂封堵位置的确定和各种工作液的注入技术等。用界面张力等值图法确定吞吐剂的优化配方,用堵剂突破压力梯度法确定堵剂的封堵位置、堵剂间的组合及用量。可视化驱油模型试验及在中原油田的现场试验都证明了这项技术的可行性和有效性。A new technique by combining the chemicals huff and puff technique with water shutoff in oil well is presented. The new technique can improve the efficiency of agents in chemicals huff and puff process, exploit the advantages of the two techniques and enhance oil recovery of reservoirs. The processes of the new technique include evaluation of agents in chemical huff and puff, determination of block-up position, and injection of various working fluids. The optimum formulation of huff and puff agents can be selected by the contour map of interracial tension. The block-up position and the combination of water shutoff agents can be determined by the breakthrough pressure gradient method. The simulation of visible oil-flooding model and field practice in Zhongyuan Oilfield confirmed the feasibility and validity of the technique.

关 键 词：化学剂吞吐技术 油井堵水技术 提高采收率 吞吐剂配方 封堵位置 

分 类 号：TE357[石油与天然气工程—油气田开发工程]