Interpretation improvement of well test applied on vertical wells with hydraulic fracturing when radial regime was not registered

Authors: I.V. Kovalenko (TNNC LLC, RF, Tyumen)

Key words: logarithmic derivative, linear drain, imaginary radius of the ellipse, equivalent area of investigation, weighted average pressure of the square, elliptic flow, dimensionless function of equivalent area of investigation, dimensionless pressure loss.

In the article the actual problem of well test interpretation on vertical wells with hydraulic fracturing in conditions of low piezoconductivity is solved (heavy oil and low permeable reservoirs), where radial regime was not reached during the well test. The presented approach allows increasing the accuracy of interpretation, to lower uncertainty, and also to reduce necessary time for well test than it is required at the classical way of interpretation.

References

1. Mangazeev P.V., Pankov M.V., Kulagina T.E., Kamardinov M.R., Deeva T.A., Gidrodinamicheskie issledovaniya skvazhin (Well testing), Tomsk: Publ. of Tomsk Polytechnic University, 2004, 339 p.

2. Kovalenko I.V., Nauka i TEK - Science and FEC, 2012, no. 2, pp. 32-33.

3. Basniev K.S., Kochina I.N., Maksimov V.M., Podzemnaya gidrodinamika (Underground hydrodynamics), Moscow: Nedra Publ., 1993, 416 p.4. 4. Horne R.N., Modern well test analysis, Petroway, Inc., Palo Alto, 1995, pp 49-52.

5. Yusupov K.S., Misharin V.A., Prakticheskoe rukovodstvo po gidrodinamicheskim metodam issledovaniya skvazhin i plastov (Practical Guide to the hydrodynamic method for wells and reservoirs testing),Tyumen: Publ. of SibNIINP, 1992, 208 p.

6. Shagiev R.G., Issledovaniya skvazhin po KVD (Well testing by pressure build-up curve), Moscow: Nauka Publ., 1998, 304 p.

Key words: logarithmic derivative, linear drain, imaginary radius of the ellipse, equivalent area of investigation, weighted average pressure of the square, elliptic flow, dimensionless function of equivalent area of investigation, dimensionless pressure loss.

In the article the actual problem of well test interpretation on vertical wells with hydraulic fracturing in conditions of low piezoconductivity is solved (heavy oil and low permeable reservoirs), where radial regime was not reached during the well test. The presented approach allows increasing the accuracy of interpretation, to lower uncertainty, and also to reduce necessary time for well test than it is required at the classical way of interpretation.

References

1. Mangazeev P.V., Pankov M.V., Kulagina T.E., Kamardinov M.R., Deeva T.A., Gidrodinamicheskie issledovaniya skvazhin (Well testing), Tomsk: Publ. of Tomsk Polytechnic University, 2004, 339 p.

2. Kovalenko I.V., Nauka i TEK - Science and FEC, 2012, no. 2, pp. 32-33.

3. Basniev K.S., Kochina I.N., Maksimov V.M., Podzemnaya gidrodinamika (Underground hydrodynamics), Moscow: Nedra Publ., 1993, 416 p.4. 4. Horne R.N., Modern well test analysis, Petroway, Inc., Palo Alto, 1995, pp 49-52.

5. Yusupov K.S., Misharin V.A., Prakticheskoe rukovodstvo po gidrodinamicheskim metodam issledovaniya skvazhin i plastov (Practical Guide to the hydrodynamic method for wells and reservoirs testing),Tyumen: Publ. of SibNIINP, 1992, 208 p.

6. Shagiev R.G., Issledovaniya skvazhin po KVD (Well testing by pressure build-up curve), Moscow: Nauka Publ., 1998, 304 p.


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