Wells – Processes – Cleaning or unloading well
Patent
1989-02-09
1990-03-20
Kisliuk, Bruce M.
Wells
Processes
Cleaning or unloading well
166173, 166223, 166373, 1510412, 134 2212, 134 24, 134167C, E21B 2100, E21B 3700, B08B 902
Patent
active
049093258
ABSTRACT:
The invention provides a method and apparatus for securement onto one end of a continuous length of remedial tubing which is introduced into a subterranean well concentrically through production tubing previously positioned within the well, with the well having a deviated configuration which includes an entry portion communicating with a curved portion extending downwardly in the well from the entry portion and a generally linear end portion traversable with a production formation. The apparatus includes a cylindrical housing and an element for securement of the housing to the tubing. A fluid passageway chamber is defined exterior of the housing with fluid passageways communicating between the interior of the housing and the expansion chamber. Turbulating elements are carried exteriorly around the housing and immediate the expansion chamber and are freely rotatable relative to the housing. A series of fluid compression ports are radially disposed through the sleeve, whereby fluid flow from the top of the well through the remedial tubing in excess of a pre-determinable pressure will be transmitted through the housing, the passage-ways and into the compression chamber. The fluid may be thereafter injected through the compression ports to activate rotary motion of the sleeve and turbulize the fluid for washing action within the linear end portion of the well.
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Baker Hughes Incorporated
Kisliuk Bruce M.
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