ملخص البحث :
Mechanical pipe sticking is the important reasons which has a direct impact on the
drilling process efficiency. The problems of pipe sticking during drilling, and the other
problems associated with this case is a crucial task that must be early identified to find
the causing factors before any further action. The main objectives of this study are to
predict and specify the main causes of these problems through modeling and simulation processes. Consequently, the (ANSYS Workbench/2019 R3) Commercial version
has been adopted for this analysis purposes. This analysis have been carried out based
on the actual interaction and contact between the active working parts to simulate the
actual process. In this simulation process, the non-deformable parts like drill pipe, and
wellbore sleeve are considered (Masters), while deformable parts are (slaves). Simulation results approved that the pipe stick happened due to high values of generation
stresses. The plot of maximum induced stresses shows that the generated stresses in
the interaction zone between the outer surface of the drilling pipe and mud are (15) %
more than in the other zones. Also, the probability of sticking during drilling can be
predicted according to the relation between the drill depth with time and drag forces.
It’s concluded that for freeing the stuck pipe it’s very necessary to predict the problems
from the beginning. This type of analysis can assure the percentage accuracy for stuck
pipe prediction is more than (70) %
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سنة النشر : 2022
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تصنيف البحث : scopus
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