Relaxation – the problems and opportunities when flushing "difficult" wells
UDC: 622.24.053.6
DOI: 10.33285/0130-3872-2022-6(354)-13-19
Authors:
KURBANOV YARAGI M.
1,
SOLOVYOV ALEXANDER YA.2,
AGZAMOV FARIT A.2
1 Tyumen Industrial University, Tyumen, Russian Federation
2 Ufa State Oil Technical University, Ufa, Russian Federation
Keywords: "complex" wells, cuttings removal, flushing fluid, relaxation, invert micellar dispersion
Annotation:
The article describes the features of drilling wells with complex spatial trajectories. The requirements for flushing liquids properties are analyzed. When the drill string rotates, it is recommended to estimate the carrying capacity of the drilling fluid by the relaxation time, the increase of which provides cuttings transportation efficiency increase. A type of flushing liquids is proposed that most satisfies the requirements for carrying capacity indicators. The prospects and difficulties of its application are described.
Bibliography:
1. Zamora M., Jefferson D.T., Powell J.W. Hole-Cleaning Study of Polymer-Based Drilling Fluids // SPE Annual Technical Conf. and Exhibition, Houston, Texas, Oct. 3–6. – 1993. – DOI: 10.2118/26329-MS
2. Powell J.W., Parks C.F., Seheult J.M. Xanthan and Welan: The Effects of Critical Polymer Concentration on Rheology and Fluid Performance // Int. Arctic Technology Conf., Anchorage, Alaska, May 29–31. – 1991. – DOI: 10.2118/22066-MS
3. Bloodworth V., Clark P., Keely G. Unique Field Viscometer Measurements Better Predict Drilling Fluid Performance // AADE Drilling Fluids Technology Conf., Houston, Apr. 22-23. – 1992.
4. Solov'ev A.Ya., Agzamov F.A., Bukin S.A. Invertno-mitsellyarnye dispersii – predpochtitel'nye tekhnologicheskie zhidkosti dlya zakanchivaniya skvazhin // Territoriya Neftegaz. – 2014. – № 5. – S. 96–100.
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