钻井废弃泥浆固化土力学特性试验分析

doi:10.11896/cldb.22080083

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Abstract Massive drilling waste mud is produced in the process of oil exploitation. People stack or discharge the drilling waste mud into the surrounding area directly, which will cause environmental pollution. It is imperative to dispose drilling waste mud. The solidification treatment method is adopted for drilling waste mud. And systematic experimental analysis on the mechanical properties of waste drilling mud is carried out. The results showed that the stress-strain curve of solidified soil is strain-softening type, and brittle failure occurred. The curve peak rise with the increase of confining pressure and curing age, while fell with the increase of the number of freeze-thaw cycles, tending to be stable after six to eight times. And freeze-thaw cycles exerted significant effects on the strength of the solidified soil. The phenomenon of stiffness softening occurred in the solidified soil, and the E-ε curve registered an overall downward trend. The stiffness is positively correlated with confining pressure and curing age, while it showed a negative correlation with the number of freeze-thaw cycles. On the whole, the relation curve between dimensionless secant modulus and dimensionless principal stress difference is composed by two parts, showing an inverted C shape. Study on mechanical properties of solidified soil is beneficial to resource reuse of waste mud.

Key words： drilling waste mud curing agent static property freeze-thaw cycle

Published: 10 April 2024 Online: 2024-04-11

CLC number:

TU43

Fund:Outstanding Youth Foundation of Shandong Province (ZR2021YQ31) and National Natural Science Foundation of China (42277135, U2006225).

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	Articles by authors
	LYU Xu
	LIU Junwei
	GAO Song
	MENG Yun
	GUO Zhen

Cite this article:

LYU Xu,LIU Junwei,GAO Song, et al. Experimental Study on Mechanical Properties of the Solidified Soil from Drilling Waste Mud[J]. Materials Reports, 2024, 38(7): 22080083-6.

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http://www.mater-rep.com/EN/10.11896/cldb.22080083 OR http://www.mater-rep.com/EN/Y2024/V38/I7/22080083

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