首页>
外国专利>
BARRIER PILLS CONTAINING VISCOELASTIC SURFACTANT AND METHODS FOR USING THE SAME
BARRIER PILLS CONTAINING VISCOELASTIC SURFACTANT AND METHODS FOR USING THE SAME
展开▼
机译:包含粘弹性表面活性剂的障壁丸及其使用方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
Methods for separating fluids with a barrier pill within a downhole environment are provided. The method includes introducing a barrier pill fluid into the wellbore containing a first fluid to form the barrier pill on top of the first fluid in the wellbore and introducing a second fluid into the wellbore. The barrier pill separates the first fluid and the second fluid. The barrier pill includes a viscoelastic surfactant and an aqueous fluid, such as a brine containing water and about 5 wt% to about 50 wt% of a salt.
展开▼