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针对史深１００油田的油层物性特点，根据油气层损害的机理，合理地选择了聚合物铵盐泥浆体系，采用颗粒半径约为１．６６μｍ的超细碳酸钙和单向压力封闭剂作为屏蔽暂堵剂，并通过对泥浆中固相颗粒、滤失量、ｐＨ值、密度的控制，实现油层保护。现场实施效果表明：实施油层保护的６口井比没有实施油层保护的６口井初始增产９６％，稳产增产５１．５％，取得了很明显的效果。钻井液油层保护技术对于其它油田也具有一定的推广价值。
According to the physical property of oil layer in Shushen 100 oilfield, according to the mechanism of hydrocarbon damage, the polymer ammonium salt slurry system was selected reasonably. The superfine calcium carbonate with particle radius of about 1.66μm and unidirectional pressure sealant Blocking agent, and through the solid particles in the mud, fluid loss, pH, density control, reservoir protection. The results of on-site implementation show that the 6 wells that implemented reservoir protection increased 96% initially and 6 wells steadily with 51.5% increase compared with the 6 wells that did not implement reservoir protection. Obvious effects were achieved. Drilling oil reservoir protection technology for other oil fields also have some promotional value.