... Abstract This study reports injectivity data for the different flow zones present during a Water-Alternating-Gas (WAG) flood. The experiments were carried out on four rock types sampled from the Grayburg dolomite formation in West Texas. We used liquid CO-water, toluene-liquid CO-water...

... ABSTRACT Unlike the offshore production industry, there are presently no regulations that dictate the use of subsurface safety valves in land completions. However, due to the increase in the number of fields moving toward CO 2 injection as a means of tertiary recovery and the potential...

... Abstract Tertiary carbon dioxide injectivity is not always greater than brine injectivity during an initial cycle of CO 2 injection above its minimum miscibility pressure (MMP), even though CO 2 has a much lower viscosity than brine. This paper goes beyond the approximate analytical models...

... ABSTRACT A recently developed treatment technique has significantly increased injectivity rates of injection wells which had been damaged by near-wellbore polymer blockage. Polymer blockage can be caused by incompletely dissolved solid polymer, improperly inverted emulsion polymer...

... ABSTRACT A method to convert multiple shot section open hole completions into cased hole completions has been developed and tested. This method provides zonal isolation between shot sections thus helping prevent injection fluid loss to non-pay intervals. The process, called "Puddle-Pack...

...Fluid Analyses ABSTRACT The purpose of this project was to improve water injectivity into the Grayburg formation at MORANCO's Rice-Hardin Waterflood in Lea County, NM. The project was a cooperative effort between the Petroleum Recovery Research Center, the New Mexico Petroleum Recovery...

...SOCIETY OF PETROLEUM ENGINEERS OF ArnE Fidelity Union Building Dallas, Tex. PAPER NUMBER 1 2 6 1 - G THIS IS A PREPRINT SUBJECT TO CORRECTION Gas Injectivity Logging By George Harcourt, Member ArnE Welex, Inc., Houston, Tex. INTRODUCTION Along with the rapid development and application of re...