Lost-circulation material made from a recycled material containing asphalt
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United States of America Patent
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Dec 24, 2013
Grant Date -
Apr 11, 2013
app pub date -
Oct 7, 2011
filing date -
Oct 7, 2011
priority date (Note) -
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Abstract
A composition comprises: a treatment fluid comprising a lost-circulation material, wherein the lost-circulation material comprises asphalt, and wherein the lost-circulation material has a median particle size in the range from about 0.001 millimeters to about 25.4 millimeters. According to another embodiment, the composition comprises: a treatment fluid comprising a lost-circulation material, wherein the lost-circulation material comprises asphalt, and wherein the median particle size and the concentration of the lost-circulation material is selected such that the treatment fluid has a sealing pressure of at least 30 psi (0.2 MPa). A method of eliminating or reducing lost circulation from a well comprises: introducing the treatment fluid into at least a portion of the well.
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