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System for monitoring fluids during well stimulation processes

  • US 4,901,563 A
  • Filed: 05/11/1989
  • Issued: 02/20/1990
  • Est. Priority Date: 09/13/1988
  • Status: Expired due to Fees
First Claim
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1. A method for monitoring the quality of a fluid composition for injection into a wellbore for performing a formation treatment process, said method comprising the steps of:

  • providing at least a first instrument manifold adapted to be interposed between a source of fluid and pump means for pumping said fluid to a wellbore, said first manifold including first and second manifold members interconnected by flow conduit means, said manifold members each including respective fluid inlet and outlet conduit connectors for connecting said first manifold to a source of fluid and to conduit means for conducting fluid from said first manifold, and a sample flow conduit connected to said first manifold for receiving a sample of fluid flow through said first manifold, said sample flow conduit including viscometer means interposed therein;

    conducting liquid through said sample flow conduit at selected flow rates;

    measuring at least the apparent viscosity of said fluid at respective selected shear rates of said fluid; and

    determining at least one of the consistency index (K'"'"') and the Power Law Index (n'"'"') of said fluid prior to injection of said fluid into a wellbore.

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