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Particulate Weighting Agents Comprising Removable Coatings and Methods of Using the Same

  • US 20140087974A1
  • Filed: 09/27/2012
  • Published: 03/27/2014
  • Est. Priority Date: 09/27/2012
  • Status: Abandoned Application
First Claim
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1. A method comprising the steps of:

  • providing a treatment fluid for use in a subterranean formation, the treatment fluid comprising a coated particulate weighting agent comprising a core weighting agent having a first specific gravity and a removable polymer coating having a second specific gravity;

    wherein the first specific gravity and the second specific gravity are not the same;

    introducing the treatment fluid into the subterranean formation; and

    allowing a portion of the removable polymer coating to be removed to alter the specific gravity of the coated particulate weighting agent down hole.

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