A low density cement slurry of zero thickening transition period which was appropriate to low temperature and shallow flow cementing operation in deepwater was introduced.
介绍了一种新型的用于海洋深水低温浅层流固井作业用的零稠化转化时间低密度水泥浆体系，该水泥浆体系采用新型高强快速凝固水泥制备。
According to forecast, water flow shall be low during dry period of 2006-2007 and water supply in the Pearl River Delta shall be threatened by salty tide again.
据预测，珠江流域2006—2007年度枯水期来水依然偏枯，珠江三角洲地区将因咸潮继续面临严峻的供水局面。
Water shutoff agent DSZ-A is composed of inorganic particle. Its specialities are low cost, easily flow, high strength and long valid period.
DSZ - A是一种无机颗粒油井堵水剂，具有成本低、可泵性好、封堵强度高、有效期长的特点。
Water shutoff agent DSZ-A is composed of inorganic particle. Its specialities are low cost, easily flow, high strength and long valid period.
DSZ - A是一种无机颗粒油井堵水剂，具有成本低、可泵性好、封堵强度高、有效期长的特点。
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