| 摘要 |
A method and apparatus for containing fluid in an area of a wellbore annulus, such as around a wireline 130 being introduced into a wellbore, involves energising fluid to create a fluid flow which is at least partially obstructed and is directed to form in the annulus a localised area of high pressure to contain fluid in an area of the annulus of lower pressure. Fluid is introduced through port 22 and is deflected off deflector insert 20, impact surfaces 28 which produces a large back pressure thereby creating an are of high pressure, that acts as a pressure plug, around a wireline 130 or slickline. |
