Reservoir fluid recognizing method

Reservoir fluid recognizing method

  • CN 102,913,240 B
  • Filed: 10/26/2012
  • Issued: 04/08/2015
  • Est. Priority Date: 10/26/2012
  • Status: Active Grant
First Claim
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1. a fluid identification of reservoir method, is characterized in that, described fluid identification of reservoir method comprises:

  • Adopt the double T E pattern under high latency to log well to reservoir, gather the echo string under long echo interval and short echo sounding, and described echo string is carried out inverting and obtain long echo interval T 2 and to compose and short echo sounding T2 composes;

    The short echo sounding T2 spectrum recorded under supposing short echo sounding condition is all water layer information, described short echo sounding T2 spectrum is carried out moving spectrum according to long echo interval, generates Simulated Water spectrum;

    Described long echo interval T 2 to be composed and Simulated Water is composed and differed from spectrum and operate and generate difference spectrum Δ

    M, judge the kind of reservoir fluid according to described poor spectrum Δ

    M;

    Wherein, described short echo sounding T2 spectrum is carried out moving spectrum according to long echo interval, generation Simulated Water is composed, comprise;

    described short echo sounding T2 spectrum is carried out moving spectrum according to long echo interval, generate the long echo interval echo string under high latency, and described long echo interval echo was ganged up data inversion process and obtain Simulated Water spectrum.

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