Coiled tubing having multiple strings of smaller tubing embedded therein

The length of coiled tubing according to claim3, wherein said at least one or more electrical lines comprises two pairs of electrical lines.

The length of coiled tubing according to claim3, wherein said at least one or more electrical lines comprises three pairs of electrical lines.

A method for treating and/or measuring various parameters in formations surrounding an earth borehole, and/or in fluids located in such boreholes, comprising:

• injecting a length of coiled tubing from a first location at or above the earth's surface to a second location in said borehole, wherein said coiled tubing is substantially circular in cross-section, and has embedded therein, at least one tube for transporting fluids from said first location to said second location and/or for pumping fluid from said second location to said first location;
• and
• pumping fluid from said first location to said second location.

A method for operating a submersible pump in fluids located in an earth borehole, comprising:

• injecting a length of coiled tubing from a first location at or above the earth's surface to a second location in said borehole, wherein said coiled tubing is substantially circular in cross-section, and has embedded therein, at least one tube for transporting fluids from said first location to said second location and/or for pumping fluid from said second location to said first location, wherein the lower end of said coiled tubing is connected to said pump;
• and
• pumping fluid from said second location to said first location.

A method for treating and/or measuring various parameters in formations surrounding an earth borehole, and/or in fluids located in such boreholes, comprising:

• injecting a length of first coiled tubing from a first location at or above the earth's surface through the interior of a second length of coiled tubing to a second location in said borehole, wherein said first coiled tubing is substantially circular in cross-section, and has embedded therein, at least one tube for transporting fluids from said first location to said second location and/or for pumping fluid from said second location to said first location;
• and
• pumping fluid from said first location to said second location.

A method for treating and/or measuring various parameters in pipelines comprising:

• injecting a length of coiled tubing from a first location at or along said pipeline to a second location in said pipeline, wherein said coiled tubing is substantially circular in cross-section, and has embedded therein, at least one tube for transporting fluids from said first location to said second location;
• pumping a pipeline pig connected to a first end of said coiled tubing from said first location to said second location;
• pumping fluid from said first location to said second location.