摘要
介绍了激活剂对一体化钻井-固井液中潜活性胶凝材料（BFS）的作用机理，通过筛选试验，筛选出了具有较强激活能力、质量分数为40％的氢氧化物A和质量分数为20％的硅酸盐F。当40％A与20％F按1：3的比例加入一体化钻井-固井液中时，形成的固化体的抗压强度最高，24h抗压强度达到17MPa。将40％A和20％F按1：3的比例复配，即为一体化钻井固井液激活剂JHJ。激活剂加量优选试验结果表明，当JHJ加量为3％～6％时，一体化固井液固化体的24h抗压强度均大于14MPa，最高可达17MPa，完全能满足固井工程的要求；JHJ在一体化钻井液和泥饼的扩散试验结果表明，JHJ能够扩散到一体化钻井液和泥饼中，激活一体化钻井液和泥饼中的BFS，使其发生水化反应，促进一体化钻井液和泥饼固化，从而提高固井质量。
The mechanism of activator to the latent hydrated active gelling material （Blast Furnace Slag） in integrated drilling cementing fluid was introduced in this paper. 40% of hydroxide A and 20% of silicate F had stronger activation ability after screening experiments. When 40% of A and 20% of F were added to integrated drilling- cementing fluid by ratio of 3 ： 1, the compressive strength of solidification reaches the maximum, and the compressive strength is 17 MPa in 24 hours. The activator experiments indicate that the compressive strength is higher than 14 MPa in 24 hours with the added JHJ of 3% to 6%, and the maximum is 17 MPa which meets the cementing requirements. The experiments also indicate that JHJ can diffuse to the integrated drilling fluid and the mud cake to activate the BFS in then： and result in the hydrate reaction and improve quality of cementing work through solidification of drilling fluid and mud.
出处
《石油钻探技术》
CAS
北大核心
2008年第2期45-47,共3页
Petroleum Drilling Techniques
关键词
一体化钻井-固井液
激活剂
抗压强度
固井质量
integrated drilling-cementing fluid
activator
compressive strength
cementing quality
