Abstract

Disclosed is a method for restoring, maintaining, or increasing well productivity or reducing a water cut. The method comprises positioning an acoustic device in a well located within the geological formation and performing an acoustic treatment impacting a muddled zone in cycles comprising one or more manipulated waves of ultrasonic pressure on the muddled zone. The cycles comprising treatment comprise a Fourier transformation of a periodic function, wherein the transformation determines a rate at which an acoustic treatment pressure of each cycle rises from a value of zero to a maximum value. This rate is directly proportional to a force of an impact on the formation, and the greater the rate, the greater the impact. A cycle frequency is determined and designed based on particular formation parameters and particular treatment parameters obtained by sensors positioned on the acoustic device. The treatment is repeated until well productivity is restored.

IPC Classes  ?

• E21B 28/00 - Vibration generating arrangements for boreholes or wells, e.g. for stimulating production
• E21B 43/16 - Enhanced recovery methods for obtaining hydrocarbons

Abstract

Disclosed is a method for restoring, maintaining, or increasing well productivity or reducing a water cut. The method comprises positioning an acoustic device in a well located within the geological formation and performing an acoustic treatment impacting a muddled zone in cycles comprising one or more manipulated waves of ultrasonic pressure on the muddled zone. The cycles comprising treatment comprise a Fourier transformation of a periodic function, wherein the transformation determines a rate at which an acoustic treatment pressure of each cycle rises from a value of zero to a maximum value. This rate is directly proportional to a force of an impact on the formation, and the greater the rate, the greater the impact. A cycle frequency is determined and designed based on particular formation parameters and particular treatment parameters obtained by sensors positioned on the acoustic device. The treatment is repeated until well productivity is restored.

IPC Classes  ?

• E21B 28/00 - Vibration generating arrangements for boreholes or wells, e.g. for stimulating production
• E21B 43/00 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
• E21B 43/25 - Methods for stimulating production
• E21B 49/00 - Testing the nature of borehole wallsFormation testingMethods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells

Abstract

Disclosed are methods, systems, and devices for increasing well and oil field productivity. The method comprises positioning an acoustic device in a well located within the geological formation and performing an acoustic treatment impacting a muddled zone in cycles comprising one or more manipulated waves of ultrasonic pressure on the muddled zone. The cycles comprise a Fourier transformation of a periodic function. The transformation determines a rate at which an acoustic treatment pressure of each cycle rises from zero to a maximum value. This rate is directly proportional to a force of an impact on the formation, and the greater the rate, the greater the impact. The acoustic treatment can further be detected by placing emitters and receivers in surrounding wells and calculating the signal received to determine if wells are hydrodynamically connected, such that a synergistic effect may be achieved through simultaneous treatment at several well locations.

IPC Classes  ?

• E21B 28/00 - Vibration generating arrangements for boreholes or wells, e.g. for stimulating production
• G01V 1/42 - SeismologySeismic or acoustic prospecting or detecting specially adapted for well-logging using generators in one well and receivers elsewhere or vice-versa
• G01V 1/50 - Analysing data
• E21B 49/00 - Testing the nature of borehole wallsFormation testingMethods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
• E21B 43/00 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells

Abstract

A method for improving and maintaining well productivity is disclosed. The method comprises placing acoustic devices within wells of a geological formation, measuring parameters for initial pulsed acoustic impact, and continuing to measure parameters in order to change impact parameters during production to optimize the acoustic effect. The method may be used to restore, maintain, or increase the productivity of an entire geological formation (oil or gas), and to reduce the water cut in the formation.

IPC Classes  ?

• E21B 28/00 - Vibration generating arrangements for boreholes or wells, e.g. for stimulating production
• E21B 43/25 - Methods for stimulating production
• E21B 47/00 - Survey of boreholes or wells
• E21B 49/00 - Testing the nature of borehole wallsFormation testingMethods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
• E21B 49/08 - Obtaining fluid samples or testing fluids, in boreholes or wells
• E21B 47/06 - Measuring temperature or pressure
• E21B 43/00 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells

Abstract

A method for improving and maintaining well productivity is disclosed. The method comprises placing at least two acoustic devices within key wells of a geological formation, measuring parameters for initial acoustic impact, and continuing to measure parameters in order to change impact parameters during production and optimize the acoustic effect. The method may be used to restore, maintain, or increase the productivity of an entire geological formation (oil or gas), and to reduce the water cut in the formation.

IPC Classes  ?

• E21B 43/17 - Interconnecting two or more wells by fracturing or otherwise attacking the formation
• E21B 43/00 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
• E21B 43/25 - Methods for stimulating production
• E21B 43/16 - Enhanced recovery methods for obtaining hydrocarbons
• E21B 49/00 - Testing the nature of borehole wallsFormation testingMethods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
• E21B 28/00 - Vibration generating arrangements for boreholes or wells, e.g. for stimulating production

Abstract

Disclosed herein is an autonomous and consistently active acoustic rehabilitation technology for wells, reservoirs, and extraction of natural resources using a borehole method. The invention can be used in oil, gas, mining, geological exploration industries, and in extraction technologies for oil and gas, including shale. It is especially useful for improvement of oil and gas output from wells and stimulation of production for maximizing recovery from reserves. The invention is applicable to areas including, but not limited to, well reserves using pumps, layer pressure supporting wells, and offshore-bed wells.

IPC Classes  ?

• E21B 28/00 - Vibration generating arrangements for boreholes or wells, e.g. for stimulating production
• E21B 47/09 - Locating or determining the position of objects in boreholes or wellsIdentifying the free or blocked portions of pipes