Systems and assemblies for enhanced oil recovery using ultrasonic-transient electromagnetic setup

Abstract

The various embodiments described herein include methods and systems for enhanced oil recovery using an ultrasonic-transient electromagnetic (U-TEM) assembly. In one aspect, the U-TEM assembly includes a pressure balancer, a bridle having a first end connected to a cable and a second end connected to an adapter, an ultrasonic generator, and an electromagnetic generator. The ultrasonic generator and the electromagnetic generator are located between the bridle and the pressure balancer and coupled to the bridle via the adapter. The U-TEM assembly is configured to generate ultrasonic waves via the ultrasonic generator and transient electromagnetic waves via the electromagnetic generator concurrently in response to a control signal from the adapter.

What is claimed is: 
     
         1 . An ultrasonic-transient electromagnetic (U-TEM) assembly, comprising:
 a pressure balancer;   a bridle having a first end connected to a cable and a second end connected to an adapter;   an ultrasonic generator; and   an electromagnetic generator,   wherein the ultrasonic generator and the electromagnetic generator are located between the bridle and the pressure balancer and coupled to the bridle via the adapter; and   the U-TEM assembly is configured to generate ultrasonic waves via the ultrasonic generator and transient electromagnetic waves via the electromagnetic generator concurrently in response to a control signal from the adapter.   
     
     
         2 . The U-TEM assembly of  claim 1 , wherein the ultrasonic generator includes a conductive metal tube and a plurality of transducer components, and each of the plurality of transducer components further includes:
 a piezoelectric ceramic tube;   a heat resistant insulating skeleton enclosed by the piezoelectric ceramic tube; and   a plurality of piezoelectric copper sheets located on an external surface of the heat resistant insulating skeleton, wherein the plurality of piezoelectric copper sheets are in conduction with the conductive metal tube and the piezoelectric ceramic tube.   
     
     
         3 . The U-TEM assembly of  claim 1 , wherein the electromagnetic generator includes an electromagnetic coil emitting the transient electromagnetic waves in response to oscillating current entering into the electromagnetic coil. 
     
     
         4 . The U-TEM assembly of  claim 1 , further comprising a case, wherein the ultrasonic generator and the electromagnetic generator are enclosed in the case. 
     
     
         5 . The U-TEM assembly of  claim 1 , wherein the ultrasonic generator and the electromagnetic generator are connected to an electric cable via the bridle. 
     
     
         6 . The U-TEM assembly of  claim 5 , wherein:
 the electric cable includes a layer having a plurality of steel wires;   the bridle is sealed using silicon and rubber forming a sealed cavity; and   the bridle comprises a tapered steel ring, wherein:
 at least one of the plurality of steel wires of the electric cable is reverse threaded on the tapered steel ring; and 
 the tapered steel ring is located in the sealed cavity having a compression ring on top. 
   
     
     
         7 . The U-TEM assembly of  claim 6 , wherein the ultrasonic generator and the electromagnetic generator are in serial electrical connection. 
     
     
         8 . The U-TEM assembly of  claim 6 , wherein the ultrasonic generator and the electromagnetic generator are in parallel electrical connection. 
     
     
         9 . The U-TEM assembly of  claim 5 , wherein the electric cable is a single-core electric cable. 
     
     
         10 . The U-TEM assembly of  claim 9 , wherein:
 the ultrasonic generator generates ultrasonic signals using electric energy provided via the single-core electric cable; and   the electromagnetic generator generates transient electromagnetic waves using electric energy provided via the single-core electric cable.   
     
     
         11 . The U-TEM assembly of  claim 5 , wherein:
 the pressure balancer is mechanically connected to a first end of the ultrasonic generator;   a second end of the ultrasonic generator is mechanically connected to a first end of the electromagnetic generator; and   a second end of the electromagnetic generator is mechanically connected to the bridle.   
     
     
         12 . The U-TEM assembly of  claim 5 , wherein:
 the pressure balancer is mechanically connected to a first end of the electromagnetic generator;   a second end of the electromagnetic generator is mechanically connected to a first end of the ultrasonic generator; and   a second end of the ultrasonic generator is mechanically connected to the bridle.   
     
     
         13 . The U-TEM assembly of  claim 5 , wherein at least a portion of the ultrasonic generator is located within the electromagnetic generator. 
     
     
         14 . The U-TEM assembly of  claim 5 , wherein at least a portion of the electromagnetic generator is located within the ultrasonic generator.