In crude oil drilling operations, excessive foam in the drilling fluid is a common and troublesome problem. Foam lowers the density of the drilling fluid, affects its cuttings-carrying capacity, and can even cause unstable pump pressure and distorted instrument readings, seriously constraining drilling efficiency and safety. The market urgently needs a professional solution that can quickly and durably suppress foam.


Chemi Tech focuses on industrial fluid treatment technology, and the defoamer it has developed specifically for crude oil drilling targets exactly this core pain point. Based on a unique molecular structure design, the product can rapidly penetrate the foam film, lower the local surface tension, and prompt the foam film to rupture and coalesce. It not only breaks foam quickly but also has a durable foam-suppressing capacity; it can adapt to the complex environment of drilling fluid with high temperature, high salinity, and various additives, maintaining stable performance.


The specific solution is divided into three clear steps: The first step is evaluation and model selection. Based on the on-site drilling fluid system (water-based or oil-based), temperature, salinity, and the composition of the main foaming substances, a suitable Chemi Tech defoamer model is recommended. The second step is precise dosing. Through small-scale tests, the optimal dosing point (usually located at the inlet of the circulation system or the mud tank) and the dosing ratio are determined, and continuous or intermittent injection is adopted to ensure uniform dispersion. The third step is effect monitoring and adjustment. After dosing, the drilling fluid density, pump pressure, and foam visibility are monitored in real time, and the dosage is fine-tuned according to the working conditions to achieve the optimal control effect.


In an onshore drilling project, after applying the Chemi Tech defoamer, on-site observation showed that the drilling fluid foam was significantly reduced within ten minutes, the fluctuation range of pump pressure dropped by about 70%, and the drilling fluid density returned to the design range, ensuring smooth subsequent drilling. The operator reported that the addition of the defoamer effectively avoided unplanned drilling stoppages caused by foam problems and improved the overall operating pace.


With its strong specificity, reliable effect, and ease of use, the Chemi Tech defoamer has become a powerful tool for addressing crude oil drilling foam problems. Through scientific evaluation, precise dosing, and continuous monitoring, it effectively helps drilling teams maintain stable fluid performance, ensure operational safety, and improve drilling efficiency.