DWZ—B油井堵剂是一种无机颗粒堵剂。室内试验表明,它具有封堵强度高、热稳定性好、地面粘度低、可泵性好、有效期长、成本低等特点。DWZ—B堵剂适用于砂岩地层的非选择性堵水,既可以封堵地层,又可以对套管进行堵漏,是一种高强度非选择性无机堵剂。通过现场应用,取得了较好效果,具有广阔的应用前景。 DWZ-B oil well plugging agent is an inorganic particle plugging agent. Laboratory tests show that it has the characteristics of high sealing strength, good thermal stability, low ground viscosity, good pumpability, long period of validity and low cost. DWZ-B plugging agent is suitable for non-selective water blocking sandstone formation, both to seal the formation, but also to casing plugging, is a high-strength non-selective inorganic plugging agent. Through the field application, has achieved good results, has a broad application prospects.