... and durable zonal isolation, an engineered cement system has been introduced. This cement system possesses sufficient flexibility (low Young's modulus), and a high coefficient of thermal expansion to withstand the metal casing expansion during the heating step of the process, without failure. This cement...

... cement blend Cement System compressive strength expansion volumetric change structural performance cement sheath Introduction Cement is relied upon to seal the wellbore, providing zonal isolation in oil and gas wells to restrict fluid movement between formations. Cement damage, shear...

... the mature heavy oil reserve. The current cementing practice calls for placing the API class G cement and silica flour blended system across unconsolidated sand bodies and exposing it to large temperature changes. Results of the stress modeling predict the conventional cement system failure under...

... Abstract The paper reviews two case histories about successful wellbore isolation with a suitable cementing system for a recent enhanced oil recovery / CO 2 project targeting the Thamama B formation of the Bab Far North reservoir in the UAE. The first two wells were vertical observers...

... reliable and durable zonal isolation under these extreme conditions. These simulation results are confirmed by several field applications in wells which have not leaked after months of steam injection. cement chemistry new thermally responsive cement cement system spe 157892 cement formulation...

... for understanding the mitigation strategies applied to cement system design when working under potentially high temperatures and with large uncertainties in temperature. Modeling software and field experience drives the expected temperatures during the planning stages of the operation. This information...