Abstract
Understanding the behavior of the borehole temperature recovery process, which influences drilling operations, requires an adequate estimation of fluid temperature. The presence of salt in a saline formation changes the composition of the annular fluid and has a significant impact on the fluid temperature distribution during drilling operations. As a result, while drilling a saline formation, it is vital to examine the key parameter that determines an accurate estimate of fluid temperature. Using python software and statistical quantitative methods, this study proposes a simplified user-friendly computational system that analyzes the drilling fluid systems performance evaluation and selection optimization.The fluid temperature distribution of X Field in China was analyzed using Shan mathematical model as a base model. When compared to MWD data from the field, the model predicted the temperature distribution of the field with less than 10% error. An adjustment factor was introduced to the base model to accommodate for changes in annular fluid composition while drilling a saline formation. The findings show that salt concentration has an impact on fluid temperature distribution during drilling. The fluid temperature at the wellbore condition changes by at least 7% with both high and low adjustment factors. Because the salt in the formation inflow dissolves in the drilling fluid near the annulus, the rheology of the fluid combination changes.
Highlights
Energy consumption and demand are continually increasing as the world becomes more industrialized
With the findings of this study, it is demonstrated that fluid temperature distribution may be accurately predicted using a mathematical model under a variety of drilling situations
The pattern of fluid temperature dispersion is determined by the drilling technique used
Summary
Energy consumption and demand are continually increasing as the world becomes more industrialized. Hydrocarbons have been a major source of energy, but production from mature oil and gas producers is gradually dropping. New hydrocarbon reserves must be discovered and produced in order to fulfill this increase in energy demand. Because salt formations are associated with enormous oil and gas reservoirs, this could be an important energy source in future. Salt is a suitable hydrocarbon trap because of its poor permeability and ability to deform under stress and temperature The knowledge of the drilling fluid temperature while drilling through a salt formation becomes very important
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