The rendering of oil structures apparent in the deep layers in Romania limits the penetration of some thick salt deposits (500-3,000 m) positioned above structures with petroleum potential (6,000 m). Drilling through these salt deposits is a major risk both during construction (drilling, cementing) and thereafter to ensure the wells' stability and dependability. These considerations shaped the approach to the salt deformation behaviour study challenge. The purpose of this article is to examine the following: salt behaviour deformation; establishment of the required parameters to ensure the stability of the drillings until bore-hole lining (particularly the secondary stress state around the drilling, the density of the drilling fluid in relation to temperature, respectively the depth), and also after casing (type of cement pastes, nature, quality, and pipe dimensions), namely the reliabilit The findings may aid in the selection of various options for guaranteeing the stability of boreholes that reach salt layers.
Mihaela Toderas,
Department of Mining Engineering, Surveying and Constructions, University of Petrosani, Petrosani, 332006, Romania.
Please see the link here: https://stm.bookpi.org/ECEES-V3/article/view/6689
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