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方法根据海上油田开发实际情况，结合油层保护，选择适当增粘剂、加重剂和盐水，配制一种新型完井液。目的改善完井液性能，保证油井在以后生产时获得最高产量。结果该有机完井液组成为：饱和ＫＲ盐水溶液加ＺＴ２和石灰石粉。该完井液经１６０℃×２４ｈ高温老化后，仍具有较好的流变性，静止５ｄ不产生沉淀；加入适量的ＺＴ２和石灰石粉调配可达１７４ｇ／ｃｍ３的高密度。结论该完井液体系可显著抑制油层粘土的水化膨胀，与储层配伍性好，对储层损害较轻，渗透率恢复值均在８０％以上，现场应用起到了较好的储层保护作用。此外还具有施工工艺简单、维护方便及性能稳定的优点
Methods According to the actual situation of offshore oilfield development, combined with the reservoir protection, select a suitable tackifier, weighting agent and brine to prepare a new completion fluid. Purpose To improve the performance of the completion fluid and to ensure the highest possible yield for the well after production. Results The organic completion fluid composition: saturated KR brine solution plus ZT 2 and limestone powder. After being aged at 160 ℃ for 24h, the completion fluid still has good rheological properties and does not precipitate for 5 days at rest. Adding appropriate amount of ZT2 and limestone powder can achieve high density of 174g / cm3. CONCLUSION The completion fluid system can significantly inhibit hydration and swelling of oil-bearing clays, has good compatibility with reservoirs, less damage to reservoirs and more than 80% of permeability recovery value, and has good reservoir protection in field applications effect. In addition, it also has the advantages of simple construction process, convenient maintenance and stable performance