Dependence of the plastic rocks properties on the pressure change in the well
Keywords:
plastic rock, rheology, stress-strain state, trunk, well
Abstract
Experimental studies of changes in rock properties depending on the pressure in the well and in the massif of the plastic layer at different distances from the well over time were carried out. The function demonstrates the power dependence of the pressure ratio at the moment of time on the geostatic pressure. After sealing the well, the pressure in the massif of the plastic formation increases in the near-well zone and decreases in the peripheral zone. Over time, the pressure in the massif of the plastic layer is equalized over the entire area of the layer. Pressure changes in a plastic rock have an impulse character. Thermal (residual) stresses affect the destruction of rocks during drilling with an increase in the depth of the well
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doi.org/10.33271/mining14.01.081
8. Mansouri H., Ajalloeian R. (2018). Mechanical behavior of salt rock under uniaxial compression and creep tests. International Journal of Rock Mechanics and Mining Sciences, 110, 19-27
doi.org/10.1016/j.ijrmms.2018.07.006
9. Aptukov V.N. (2016). Deformation criterion of salt rock failure. Journal of Mining Science, 52(3), 448-453
doi.org/10.1134/S1062739116030645
10. Svitalka P.I., Solovyov V.V., Bandurina O.V. (2013). Methods and results of determining the strength of salt rocks depending on the rate of inelastic deformation. Academic journal. Industrial Machine Building, Civil Engineering, 4(2), 175-181
11. Duda Z.M., Svitalka P.I. (2000. The results of the study of the volume-stress state of the wellbore massif with the content of plastic rocks. Oil and gas of Ukraine: coll. of science works VI Intern. Scientific and Practical conf. "Oil and gas of Ukraine - 2000", 2, 44-46
12.Mocherniuk D.Yu., Chernov V.B. (2000). Assessment of the influence of temperature on the change in the state of rocks around the wellbore. Oil and gas of Ukraine: coll. of science works VI Intern. Scientific and Practical conf. "Oil and gas of Ukraine - 2000", 2, 43-44
13.Svitalka P.I., Solovyov V.V. (2000). The choice of the way to establish the pressure-time dependence at an unknown volumetric stress state, inelastically deformed around the well massif, with time-varying rock strength. Oil and gas of Ukraine: coll. of science works VI Intern. Scientific and Practical conf. "Oil and gas of Ukraine - 2000", 2, 91-92
14.Svitalka, P.I. Solovyov V.V. (2000) Prediction of the value of the pressure on the casing during the opening of salts and clays. Oil and gas of Ukraine: coll. of science works VI Intern. Scientific and Practical conf. "Oil and gas of Ukraine - 2000", 2, 67-70
Published
2022-12-17
How to Cite
Mykhailovska Olena Dependence of the plastic rocks properties on the pressure change in the well / Olena Mykhailovska, Veniamin Soloviev // ACADEMIC JOURNAL Industrial Machine Building, Civil Engineering. – Poltava: PNTU, 2022. – VOL. 2 (59). – PP. 92-97. – doi:https://doi.org/10.26906/znp.2022.59.3105.
Section
«Mining»
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
