摘要 |
The present invention is related in general to fluid compositions and methods for servicing subterranean wells. Particularly, the invention relates to the use of a fiber-laden fluid to separate two wellbore-service fluids as they travel through a tubular body, preventing their commingling. The invention obviates the need for mechanical devices such as wiper plugs, or special adjustment of the wellbore-service fluids' rheological properties. |