Hallmark has been providing OCTG products for In-Situ heavy oil operations since 1989. Two decades of experience give us an in-depth understanding of the technical requirements for this application and the mill capabilities needed to manufacture tubulars to withstand the extreme temperature and cyclical operation of these wells.
Hallmark's engineers have established manufacturing and inspection procedures for a wide variety of thermal applications. Hallmark has qualified most major mills for thermal heavy oil operations, including auditing their metallurgy and premium joint connection capabilities. Our extensive work with the mills have resulted in their proprietary steel casing and tubing having superior performance in the extreme heat and pressures associated with thermal heavy oil operations.