Patent ID: 9038736
Filing Date: 2015-05-26
Classification: E21B

Abstract:
1. A method for filtering debris from a well fluid, the method comprising the steps of: flowing a debris-containing well fluid through a first inlet into a first elongated housing tool that has a first outlet; flowing the debris-containing well fluid through a first inner tube extending within the first housing; allowing the debris-containing well fluid to pass through a porous deflection cone while blocking a first portion of debris using the porous deflection cone; accommodating the first portion of debris within a first annulus formed between the first inner tube and the first housing; flowing the debris-containing well fluid through the first outlet of the first housing; flowing the debris-containing well fluid through a second inlet into a second elongated tool housing, the second inlet being in fluid communication with the first outlet of the first housing; flowing the debris-containing well fluid through a second inner tube; flowing the debris-containing well fluid into a second annulus between the second inner tube and an elongated screen member; flowing the well fluid through the screen member, thereby filtering the well fluid of at least another portion of the debris; and flowing the well fluid through a second housing outlet.