CAJ | 학술논문

针对常规水泥浆稠化时间、流变性、沉降稳定性无法满足膨胀管固井工艺复杂和施工时间长的问题,采用一种新型缓凝剂(CH88),优选出了配套的降失水剂(WJ60S)和减阻剂(CUSZ),设计出了超缓凝水泥浆体系,并对其性能进行了评价.结果表明,在长时间静止情况下,该体系能够保持良好的沉降稳定性,稠化时间达到10 h以上,直角稠化特性明显.现场应用结果表明,该体系浆体性能稳定,施工安全,能够满足膨胀管固井施工要求.
침대상규수니장주화시간、류변성、침강은정성무법만족팽창관고정공예복잡화시공시간장적문제,채용일충신형완응제(CH88),우선출료배투적강실수제(WJ60S)화감조제(CUSZ),설계출료초완응수니장체계,병대기성능진행료평개.결과표명,재장시간정지정황하,해체계능구보지량호적침강은정성,주화시간체도10 h이상,직각주화특성명현.현장응용결과표명,해체계장체성능은정,시공안전,능구만족팽창관고정시공요구.
@@@@The properties of the conventional cement slurry such as thickening time, rheology and stability cannot meet the re-quirement of complex technology of expansion pipe cementing and long construction time. A new type of ultra-retarding cement slurry system?has?been?developed?to?solve?this?problem,?which?contains?a?new?type?retarder?CH88,?matched?optimal?filtrate?reducer?WJ60S?and?drag reducer CUSZ. And then its comprehensive properties were studied. The results show that the ultra-retarding cement slurry system can maintain perfect settlement stability in a long time under static condition, with more than 10 hours thickening time, and performs obviously thickening characteristics of right-angle. Field application results represent that the ultra-retarding slurry system was featured by?stable?performance,?safety?and?convenience?used?in?field,?which?can?satisfy?the?expansion?pipe?cementing?operation?requirements.