生物聚合物调剖技术

Technique for Biopolymer Plugging Adjustment

以老区高含水油田为目标,开展生物聚合物调剖技术研究。在生物聚合物特性研究的基础上,探讨了岩心注入能力和封堵调剖能力。在取得室内物模驱油试验提高采收率9%,油井堵水增油647t后,对2口水井进行了生物聚合物调剖矿场试验,周围油井含水率下降7.7%～64.5%,一年来持续有效。通过矿场试验的跟踪监测和动态分析,明确了影响生物聚合物调剖效果的主要环节及因素,为该项技术的深入研究和大规模推广应用指明了方向。

In the light of high water-cut oilfield , technical study of the biopolymer plugging adjustment is made.Based on the bio polymer property,core flooding ability and biopolymer plug adjustment capacity are discussed.Following lab experiment of physical model oil dis-placement with enhancing recovery of9%and incremental oil production of647t by oil-well water block-off,the field tests of biopolymer plugging adjustment in two water producers are made,lowering water-cut of7.7～64.5%in adjacent oil wells with more than one year effec-tiveness.Through test monitoring and performance analysis,that the main factors influencing the effect of biopolyme r plugging adjustment are confirmed,being as a guide for in-depth research an d large-scale application of this technique.