Electromagnetic oil pipe plugger

Abstract

An electromagnetic chemical adhesive pipe plugging system is provided, including an elongated hollow injection quill, said quill having a plurality of circumferentially spaced magnetic jaws, a plurality of circumferentially spaced shoes, and a plurality of circumferentially spaced magnetic heads, wherein the magnetic jaws, shoes, and magnetic heads are capable of being pushed radially outward into gripping engagement with the inner diameter of a pipe assisted by chemical adhesive bonds against the pressure forces acting thereon, and the magnetic heads are capable of creating an intense magnetic field. Methods and means of deploying, positioning, maintaining, controlling, and operating the system are also provided and include insertion through the BOP primary exit line or choke and kill lines within a BOP device.

1 . A method of plugging an oil pipe, comprising:
 providing a pipe, said pipe having an upstream end and a downstream end, wherein fluid is flowing in the pipe from the upstream end to the downstream end;   inserting an electromagnetic chemical adhesive oil pipe plugger into the downstream end of the pipe in an axial direction through any available injection lines, creating an annular space between the pipe and the plugger, said plugger comprising:
 an elongated hollow injection quill, said injection quill having an open upper end and an open lower end; 
 a plurality of circumferentially spaced magnetic jaws, said magnetic jaws affixed to the outer diameter of the injection quill; 
 a stabilizer, said stabilizer comprising a plurality of circumferentially spaced shoes, said shoes affixed to the outer diameter of the injection quill and being spaced from the magnetic jaws; and 
 a magnetic particle collector, said magnetic particle collector comprising a plurality of circumferentially spaced magnetic heads, said magnetic heads affixed to the outer diameter of the injection quill and being spaced from the stabilizer; 
 activating the magnetic jaws and stabilizer, wherein the magnetic jaws and the shoes are pushed radially outward into gripping engagement with the inner diameter of said pipe against the pressure forces acting thereon and assisted by chemical adhesive, 
 activating the magnetic particle collector, causing the magnetic heads to be pushed radially outward into gripping engagement with the inner diameter of said pipe against the pressure forces acting thereon, and creating an intense magnetic field in the annular space between the inner diameter of the pipe and the outer diameter of the injection quill assisted by chemical adhesive bonds between the magnetic metal array and pipe wall; 
 injecting a slurry carrier into the open upper end of the injection quill at a rate sufficient to overcome the flow of fluid in the pipe, said slurry carrier comprising metallic particles and chemical adhesive, wherein the slurry carrier accumulates in the annular space and is trapped by the magnetic field; 
 injecting a chemical adhesive which is a two-part epoxy in a mixture into the open upper end of the injection quill at a rate sufficient to overcome the flow of fluid in the pipe. 
   
     
     
         2 . The method of  claim 1 , wherein said magnetic jaws further comprise an adhesive, wherein the adhesive is com-pressed on the inner diameter or outer diameter of said pipe upon activation of the magnetic jaws. 
     
     
         3 . The method of  claim 1 , wherein the mixture is a magnetorheological fluid. 
     
     
         4 . An electromagnetic oil pipe plugger comprising:
 an elongated hollow injection quill, said injection quill having an open upper end and an open lower end;   a plurality of circumferentially spaced magnetic jaws, said magnetic jaws affixed to the outer diameter of the injection quill;   a stabilizer, said stabilizer comprising a plurality of circumferentially spaced shoes, said shoes affixed to the outer diameter of the injection quill and being spaced from the magnetic jaws; and   a magnetic particle collector, said magnetic particle collector comprising a plurality of circumferentially spaced magnetic heads, said magnetic heads affixed to the outer diameter of the injection quill and being spaced from the stabilizer assisted by chemical adhesive bonds;   wherein the magnetic jaws and the shoes are capable of being pushed radially outward into gripping engagement with the inner diameter of a pipe with chemical adhesive bond assistance against the pressure forces acting thereon,   further wherein the magnetic heads are capable of being pushed radially outward into gripping engagement with the inner diameter of said pipe against the pressure forces acting thereon, and are capable of creating an intense magnetic field assisted by chemical adhesive bonds caused by a two-part epoxy in a mixture.   
     
     
         5 . The plugger of  claim 4 , wherein the magnetic jaws and an in-situ adhesive packed bed plug further comprise an adhesive. 
     
     
         6 . The plugger of  claim 4 , further comprising an external mechanical band fastener attached to the outer diameter of the open upper end of the injection quill.