| 摘要 |
The present invention relates to a water-based wellbore fluid comprising water, a hydration inhibitor including a hydroxyalkyl polysaccharide with a weight average molar mass of less than 5,000 and at least one other component selected from the group comprising a rheology modifier, fluid loss control agent, inorganic or organic salt, dispersant and weighting agent. The invention further relates to a method of drilling a subterranean hole and to a method of forming a water-based wellbore fluid.
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