"Many questions remain about the main parameters governing formation damage that builds up during Produced Water Re-Injection (PWRI), particularly in relation to high permeable sands. Experimental data in this area is very limited. Our paper demonstrates that it is not because sands can be very permeable that they can tolerate any water quality during PWRI. An optimum water quality must be reached to make PWRI viable. The paper also gives some concrete elements to improve the design of water treatment plants in terms of separation of solid particles and oil from water."
- Jalel Ochi (Paper SPE-189513-MS: An Experimental Investigation of Formation Damage Induced by PWRI in Unconsolidated Sands)
"Halite precipitation has been an issue for many years in North Sea gas fields and is becoming more relevant in other areas of the world. A numerical model has been developed to predict salt precipitation near a gas producing well. We will share our insights in the parameters and mechanisms that govern timing and location of halite precipitation and its effects on gas production, based on the model. We will demonstrate how to use the predictive model to improve and optimize production."
- Aris Twerda (Paper SPE-189541-MS: Salt Precipitation in the Near Well Bore Region of Gas Wells)
"This paper relates to a well study I conducted where we concluded that the reasons for rapid production decline were not from formation and perforation damage, nor from damage caused by hydraulic fracturing. It was from the lack of an in-depth study of the well, geology, well testing, and offset wells’ behavior. I felt it was equally important for this conference to offer a paper on situations where formation damage was not the main cause of production decline. Engineers and management should consider all parameters affecting production, such as formation pressure, when a well productivity declines faster than the offset wells."
- Mehdi Azari (Paper SPE-189494-MS: Integrated Fracture Performance and Formation Damage Assessment to Enhance Well Production in the Hassi Messaoud Field, Algeria: Case Study)
"Research has not been conducted previously on the mixing mechanism for wellbore cement. Our paper’s primary goal was to show with laboratory testing how mix water can affect cement properties. Based on the results, the paper suggests that water hardness, temperature, and salinity have an impact on cement properties such as rheology, thickening time, and compressive strength. The impact seems to be minimal on rheology, and quite significant on thickening time."
- Saeed Salehi (Paper SPE-189505-MS: How Does Mixing Water Quality Affect Cement Properties)