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Completion method for stimulation of multiple intervals

  • US 9,238,953 B2
  • Filed: 11/08/2011
  • Issued: 01/19/2016
  • Est. Priority Date: 11/08/2011
  • Status: Active Grant
First Claim
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1. A method of treating a plurality of well zones, comprising:

  • providing each flow control device of a plurality of flow control devices with an internal profile and a flow through passage;

    locating the plurality of flow control devices along a casing in a wellbore; and

    selecting a plurality of darts constructed for engagement with the internal profile of specific flow control devices of the plurality of flow control devices;

    releasing each dart of the plurality of darts for engagement with the internal profile of the specific flow control device;

    selectively actuating each dart downhole to engage the internal profile of the specific flow control device by controlling the fluid acting on the dart over a predetermined time period;

    wherein selectively actuating comprises;

    shifting a mandrel within a housing; and

    controlling the rate of shifting of the mandrel using an orifice to restrict flow of an internal fluid; and

    creating a fluid barrier via engagement with the internal profile for enabling a stimulation operation.

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