| Treatment of swelling clay in building and petroleum drilling using synergistic inhibtion of polyethylene glycol and potassium chloride |
| Paper ID : 1078-ISCH |
| Authors |
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Ahmed Mohamed Mansour * I'm Ahmed Mansour , Student at faculty of science helwan university department of chemistry program Applied Chemistry |
| Abstract |
| Swelling clays, particularly montmorillonite , pose significant challenges in both building construction and petroleum drilling due to their tendency to absorb water and expand, leading to structural instability and operational difficulties. investigates the synergistic inhibition effects of polyethylene glycol (PEG) and potassium chloride (KCl) on swelling clays, aiming to enhance the stability and performance of construction materials and drilling fluids. The experimental approach involved in recovery tests, linear swell tests, and spectroscopic analyses, including Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). The results demonstrated that the combination of PEG and KCl significantly reduced the swelling potential of Na-montmorillonite (Na-Mt) compared to the use of either inhibitor alone. Specifically, the PEG-KCl mixture achieved higher recovery rates and lower linear swelling rates, indicating a more effective inhibition mechanism. The synergistic effect is attributed to the dual action of PEG and KCl. PEG, a hydrophilic polymer, adsorbs onto the clay surface, forming a protective layer that restrict water penetration. Concurrently, KCl provides ionic strength that helps to replace sodium ions in the clay interlayers , reducing the d-spacing and thus the swelling capacity. This dual mechanism not only stabilizes the clay structure but also enhances the overall rheological properties of treated materials. In building construction, the application of PEG and KCl treated clays can lead more durable and stable foundations, reducing the risk of structural damage due to clay expansion. For petroleum drilling, the improved inhibition of clay swelling translates to better wellbore stability, reduced drilling complications, and lower operational costs. |
| Keywords |
| Swelling clay , inhibtion , potassium chloride ,polyethylene glycol , petroleum drilling , building , construction , swelling and shrinkage . |
| Status: Abstract Accepted (Poster Presentation) |