... Abstract Producing gas-condensate reservoirs below the fluid's dew-point pressure will lead to an increased condensate saturation in the near wellbore region, which impacts the relative permeability to gas. This phenomenon is known as condensate banking and is a cause of productivity impairment...

... Abstract This paper presents the results of a laboratory study on the effect of different fracture fluid systems on permeability impairment of a typical coalbed methane (CBM) reservoir. These fluid systems include conventional gel fluids (linear and cross-linked gel), gel fluid with surfactant...

... but it was deteriorating after a few months of flowing. A demulsifying wash agent and mineral complex dissolver chemicals were proposed to be used as treatment to mitigate the formation impairment. However, prior to implementing both chemicals for formation impairment mitigation in the gas field, assessment...

... saucier upstream oil & gas application flow in porous media china national offshore oil corporation pore size gravel pack sand sand control effect wentao xiang sand control particle median pore size petroleum engineer formula saucier formula saucier gravel impairment presentation sz36...

... Darcy permeability formation, WIA-8 well showed lower than expected productivity after completion. Efforts to restore the well productivity using matrix acidizing treatments resulted in additional productivity impairment. Recently, the well was worked over and the formation was treated with a small...

... ABSTRACT Since the IMPAIRMENT TESTS carried out in May 1989 improvements have been made to BSP's operating practices such as better shearing and filteating of the gravel carrier fluid and the introduction of new well bore cleaning procedures. A new earner fluid viscosifier, SHELLFLO-S...

.... The use of a short cleanup test following completion is beneficial in early identification of a production impairment. loading gravel pack gravel placement drilling fluid management & disposal impairment perforation drilling fluids and materials slurry tcp procedure procedure...