... Abstract Gas migration velocity impacts the planning of pressurized mud cap drilling (PMCD) as it plays a pivotal role in the selection of fluid volumes and logistics. A pilot-scale experimental investigation of gas migration under downhole conditions (up to 3,600 psi, 240°F) in water, oils...

... Upstream Oil & Gas cement chemistry self-healing cement Caspian Sea turkmenistan section Downhole stress dzhygalybeg cement slurry gas migration autonomic computing dzheitune Cement System requirement placement hydrocarbon Zhdanov integrity slurry cement sheath society of petroleum...

... British Columbia secondary dry gas migration composition gas migration fairway Canada The Montney has a complex structural history which includes the reactivation of older tectonic elements within the basin, such as the Peace River Arch (PRA) and the Hay River Fault zone ( Zonneveld and Moslow...

... with the RCD can make drilling operations safer and easier to detect kicks with a closed loop but some considerations have to be taken into account, especially when it is performed from floaters: PMCD sacrificial fluid Mud Cap Drilling gas migration Drilling well control drilling operation Pressure...

... and bond evaluation best practice integrity cement slurry hole section hydraulic isolation long-term well integrity well integrity gas migration isolation Leak SHC placement cement sheath cement operation lbm galus slurry hydrocarbon leak Introduction The drive to increase...

... the cement. The faster that you achieve this optimum SGS, the less likely that the cement will transmit gas. This paper will establish a definition for cement transition time and discuss the misconception of only using gel strength development to control gas migration. Test data that exhibits gas tight...

...-pressure treatment with controlled treatment depth could be designed. Data is presented from pulsation of over 80 wells in drilling areas notorious for early gas migration after cementing. Field applications of the technology in 80 wells provided significant evidence of the success of cement pulsation...

... electrode electrical conductivity correlation conductivity oilwell cement backe spe 56539 cement chemistry laboratory study mix 1 strength consistometer cement property gas migration silica fume lyomov slurry upstream oil & gas glass test tube hthp consistometer cement...

... permeability injector upstream oil & gas producer ekofisk formation injection gas saturation spe 28933 gas saturation reservoir historical performance enhanced recovery gas migration injection ekofisk field well 2 4 tor formation gor ekofisk gas injection method...

... cement slurry society of petroleum engineers transition phase cement formulation cement chemistry gas migration differential pressure supply pressure characteristic migration filtrate cement column rheology cement property procedure concentration innovative cell hydrostatic...

... strength gel strength gas migration critical shear rate slurry shear rate upstream oil & gas drilling fluids and materials strength Abstract The traditional use of pipe movement was to enhance mud displacement, and there was little reason to continue movement after the cement slurry...

... SPE Members Abstract A laboratory model was constructed to investigate "worm hole" gas migration through an inclined cement column. The model consisted of 10 foot long PVC tubes. Gas was allowed to PVC tubes. Gas was allowed to migrate through the initially overbalanced cement placed...

... drilling fluids and materials cement fluid loss drilling fluid formulation gas migration slurry permeability slurry transition period drilling fluid upstream oil & gas drilling fluid filter cake filter cake permeability drilling fluid property drilling fluid selection...

...SPE Society of Petroleum EngineePS SPE 14434 Use of Expanding Cement Improves Bonding and Aids in Eliminating Annular Gas Migration in Hobbs Grayburg-San Andres Wells by F.A. Seidel, Amoco Production Co., and T.G. Greene, Dowell Schlumberger SPE Members Copyright 1985, Society of Petroleum...

... a small loss of annular pressure can lead to gas migration. If the cement does not develop enough strength adjacent to the gas-bearing zone before static pressure drops below the gas pressure, channeling will occur. The channel will propagate through the semi-gelled cement column and will not close, due...

... pressure is then plotted on the same graph. Any differences between the pressure values expressed by these plots provide an indication of the degree of overbalance or underbalance existing between the annular fluid column and the formation. If the potential for gas migration through the lightened cement...