05323855 is referenced by 22 patents and cites 13 patents.

An apparatus to extract electromagnetically susceptible fluids and electromagnetically susceptible particles from a subterranean well having a shaft or tube extending from the surface to a fluid-containing formation and a mechanism to deliver the fluids and particles to the surface from the fluid-containing formation. The apparatus includes at least one electromagnetical coil within the shaft or tube. A direct current is supplied to the electromagnetic coil to generate a electromagnetic field in the fluid-containing formation. The magnetically susceptible fluids and particles are attracted toward the shaft tube through use of the electromagnetic field.

Title
Well stimulation process and apparatus
Application Number
701770
Publication Number
5323855
Application Date
February 17, 1993
Publication Date
June 28, 1994
Inventor
James O Evans
2739 Beech La., Pampa, 79065
TX, US
Agent
Head & Johnson
IPC
E21B 43/24
View Original Source