ProWell Technologies Ltd.
|ProWell Technologies Ltd. Patent applications|
|Patent application number||Title||Published|
|20100044047||Method for impulse stimulation of oil and gas well production - A method for fracturing an oil or gas formation. The method includes introducing a gas impulse device into a wellbore followed by pumping a pressurized liquid into a wellbore at a pressure equal to or lower than the estimated fracture pressure of the formation. Finally, the method includes firing the gas impulse device periodically so that the device releases high pressure compressed gas impulses. The impulses when expanding through the pumped pressurized liquid substantially instantaneously increases the fracturing liquid flow rate into the oil or gas formation. It causes the total pressure to exceed the actual fracturing pressure of the formation thereby initiating or extending fractures in the formation stimulating the flow of the oil or gas therefrom into the wellbore. Use of the method of the invention in waterflooding and preventing lost circulation is also described.||02-25-2010|
|20100044032||Method for completion, maintenance and stimulation of oil and gas wells - A method for inducing motion in solid particulates in a solid/liquid mixture located in proximity to the periphery of a wellbore or in the formation zone adjacent to a wellbore in an oil or gas formation. The method includes introducing a gas impulse device into the wellbore. It then requires firing the gas impulse device so as to generate impulses of high pressure compressed gas, thereby to produce pressure waves within the wellbore and its surrounding formation. This causes motion of the solid particulates which permits settling and/or redistribution of the solid particulates. In some cases it even causes particulate flow, as in cold heavy oil production with sand (CHOPS). The method also frees blockages caused by the solid particulates and stimulates productivity. The method may inter alia be used in gravel pack construction and maintenance, well cementing operations and in CHOPS stimulation.||02-25-2010|