Comprehensive Assessment of Resin Systems as a Combined Solution for Well Integrity Challenge and Unwanted Fluid Shut-off in Carbonate Reservoirs
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abstract
The petroleum industry usually uses class G cement when it comes to cementing jobs. However, that was the only option before, and because of that many issues came with it. Indeed, in the Middle Eastern region as well as in the rest of the world, wellbore integrity is always a reason for concern. Indeed, if wellbore integrity is not guaranteed, then production or drilling operations would be done under very unsafe circumstances. In order to fix certain leaks or cracks found in the formation, resin cement can be used in order to prevent any interaction between the wellbore fluids and the formation fluids. Because of its elasticity and high compressive strength resistance, the resin will fill in the fracture or space perfectly and seal it off thus preventing any future issues. An example of that would be when they used resin cement in the Utica shale formations where annular pressure buildup was faced due to a fracture found in the casing. The pressure buildup disappeared completely after they had applied resin cement into the fracture (Jones et al. 2013). It was also used to solve a combo problem when the operator was producing from Polish shale. Indeed, the problem was that they wanted to fracture the formation in order to improve productivity, however, by fracking the formation, they would also damage the well and put the well into danger. In order to preserve wellbore integrity, the parts in the well were repaired by injecting resin cement in areas where the casing wasnâ t well cemented. The operator company was then able to frack the formation with no wellbore integrity damage (Jones et al. 2013). This research is aimed at seeing how resin cement as well as the mix of resin with class G cement can improve well integrity as well as combined solution for unwanted fluid shut-off in the Middle Eastern region, i.e. for carbonates reservoir and under typical reservoir temperatures and pressures found in this region. This research is aimed at seeing how resin cement as well as the mix of resin with class G cement can improve well integrity as well as combined solution for unwanted fluid shut-off in the Middle Eastern region, i.e. for carbonates reservoir and under typical reservoir temperatures and pressures found in this region. Through these results, we will be able to assess the application that can be used for any remedial jobs no matter what the issue and how great of a seal it can be. All of this will be seen through its enhanced properties.
