1. A wellbore treatment kit comprising:
a polymeric solution for placement in a wellbore that penetrates a subterranean formation; and
an activator for causing a polymer to precipitate out of the polymeric solution when it contacts the polymeric solution, wherein the resulting precipitate is capable of at least partially blocking a flow of a wellbore servicing fluid into the subterranean formation.
2. The wellbore treatment kit of claim 1, wherein the wellbore servicing fluid comprises a drilling fluid, a cement composition, a workover fluid, or combinations thereof.
3. The wellbore treatment kit of claim 1, wherein the polymeric solution comprises polyvinylpyrrolidone in water.
4. The wellbore treatment kit of claim 1, wherein the activator comprises a formate brine, an acetate brine, an oxalate brine, a halide brine, or combinations thereof.
5. The wellbore treatment kit of claim 1, wherein a volume ratio of the polymeric solution to the activator is in a range of from about 50:50 to about 70:30.
6. The wellbore treatment kit of claim 1, wherein an amount of the polymer in the polymeric solution is in a range of from about 1 to about 90 by weight of the polymeric solution.
7. The wellbore treatment kit of claim 4, wherein an amount of formate in the formate brine is in a range of from about 10% to about 78% by weight of the total formate brine.
8. The wellbore treatment kit of claim 1, wherein the precipitate is capable of being dissolved in water for removing the precipitate from the subterranean formation.
9. The wellbore treatment kit of claim 1, being disposed in the wellbore.
10. The wellbore treatment kit of claim 1, being disposed on a truck.
11. The wellbore treatment kit of claim 1, being stored in a warehouse.
12. The wellbore treatment kit of claim 1, wherein a solvent of the polymer comprises the activator, and wherein the polymer is coated with a material that is capable of dissolving as it passes down the wellbore such that contact between the activator and the polymer is time delayed.
13. A wellbore treatment kit comprising:
a polymeric solution for placement in a wellbore that penetrates a subterranean formation;
an activator for causing a polymer to precipitate out of the polymeric solution when it contacts the polymeric solution, wherein the resulting precipitate is capable of at least partially blocking a flow of a wellbore servicing fluid into the subterranean formation; and
a spacer for separating the polymeric solution and the activator when they are pumped into the wellbore.
14. The wellbore treatment kit of claim 13, wherein the polymeric solution comprises polyvinylpyrrolidone in water.
15. The wellbore treatment kit of claim 13, wherein the activator comprises a formate brine, an acetate brine, an oxalate brine, a halide brine, or combinations thereof.
16. The wellbore treatment kit of claim 13, wherein the spacer comprises a natural hydrocarbon, a synthetic hydrocarbon, a glycol, a surfactant, fresh water, or combinations thereof.
17. A subterranean well comprising a precipitate disposed therein for at least partially blocking a flow of a wellbore servicing fluid into a subterranean formation penetrated by the well.
18. The subterranean well of claim 17, wherein the precipitate comprises polyvinylpyrrolidone that has been precipitated out of water.
19. The subterranean well of claim 17, wherein the precipitate is capable of being dissolved in water for removing the precipitate from the subterranean well.
20. The subterranean well of claim 17, wherein the wellbore servicing fluid comprises a drilling fluid, a cement composition, a workover fluid, or combinations thereof.
17. A method of treating a wellbore that penetrates a subterranean formation, comprising:
introducing an activator to the wellbore;
introducing a polymeric solution in situ with the activator, thereby forming a hard precipitate to at least partially block a flow pathway into the subterranean formation;
circulating a wellbore servicing fluid through the wellbore; and
dissolving the precipitate to prepare for hydrocarbon production.
18. The method of claim 17, further comprising introducing a spacer fluid to the wellbore in between the activator and the polymeric solution.
19. The method of claim 17, wherein the polymeric solution comprises polyvinylpyrrolidone in water.
20. A method of drilling a wellbore at least partially through a subterranean formation, comprising:
introducing an activator to the wellbore;
introducing a polymeric solution in situ with the activator, thereby forming a hard precipitate to at least partially block a flow pathway into the subterranean formation;
applying torque to a bit within the wellbore while applying force to urge the bit to extend through the wellbore; and
circulating a drilling fluid past the bit to remove cuttings therefrom.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
I claim:
1. A method of manufacturing a tape comprising:
providing at least two webs of sheet steel;
slitting a first of the webs into a plurality of side by side steel tapes;
winding each of the steel tapes into a respective tape package;
at a tail end of the first web, splicing to the tail end of the first web a leading end of a second of the webs to form a splice in the webs and continuing the slitting and winding of the tapes such that each of the steel tapes when wound onto the respective package has a length through the splice of the sum of the length of the webs;
unwinding at least one of the steel tape packages and in a laminating station laminating onto each surface of the steel tape a respective layer of a polymer material so as to cover the surface and to form a finished tape;
and re-winding the finished tape into a finished tape package.
2. The method according to claim 1 wherein a plurality of the steel tapes are unwound and passed through the laminating station in which the steel tapes are arranged side by side and are laminated, while side by side, with two sheets of the polymer material such that each of the sheet of the polymer material covers the respective surface of the plurality of steel tapes to form a plurality of the finished tapes side by side, and wherein, after laminating, the sheets with the steel tapes laminated therein are divided longitudinally to separate each finished tape from the next.
3. The method according to claim 2 wherein the side by side steel tapes are arranged in the laminating station spaced each from the next such that the sheets of the polymer material are laminated together between the side edges of the steel tapes to effect encapsulation of the steel tapes and to cover the side edges of the steel tapes with the polymer material.
4. The method according to claim 2 wherein the steel tapes are arranged in the laminating station directly side by side such that the sheets of polymer material cover only the surfaces of the tapes and, when subsequently separated, leave the edges of the steel tapes exposed.
5. The method according to claim 1 wherein the leading end of the second web is butt spliced to the trailing end of the first web such that each package of finished tape has at least one butt splice of the steel tape therein
6. The method according to claim 5 wherein the butt splice is effected by welding.
7. The method according to claim 5 wherein the butt splice is at an angle to a line transverse to the steel tape.
8. The method according to claim 1 wherein the sheets of polymer material are continuous through the splice in the steel tape.
9. The method according to claim 1 including applying onto one of the sheets of polymer material a water swellable material so as to be carried as a strip on the finished tape.
10. The method according to claim 9 wherein the water swellable material is covered by a moisture permeable covering protective layer.
11. The method according to claim 9 wherein the water swellable material is spaced from at least one side edge of the finished tape.
12. A method for manufacturing a fiber optic cable comprising:
providing a cable core including at least one optical fiber;
providing a reinforcing tape for the core having a steel reinforcing layer coated on each of an outer surface and an inner surface by a polymer material;
the tape being formed by a method according to claim 1;
wrapping the tape around the core so as to surround the core and define an edge of the inner surface which overlaps an edge of the outer surface;
and extruding a jacket over the tape such that the tape is heated to effect bonding of the polymer material on the outer surface to the jacket and to effect bonding of the polymer material at the edge of the inner surface to the polymer material at the edge of the outer surface;
forming the cable over a predetermined continuous required length;
and providing the finished tape, including the steel tape and the layers of the polymer material thereon, in a supply having a continuous supplied length at least equal to said required length.
13. The method according to claim 12 wherein the layers of polymer material are wrapped around the edges of the steel tape to effect encapsulation of the steel tape and cover the side edges of the steel tape with the polymer material.
14. The method according to claim 12 wherein the finished tape has at least one butt splice of the steel tape therein.
15. The method according to claim 14 wherein the butt splice is effected by welding.
16. The method according to claim 12 wherein the polymer material is continuous through the butt splice.
17. The method according to claim 12 wherein the tape is corrugated transversely.
18. A package of tape comprising:
a steel tape;
the steel tape including at least one splice therein such that the steel tape is continuous through the package from a leading end to a trailing end;
the steel tape having laminated onto each surface of the steel tape a respective layer of a polymer material so as to cover the surface;
the layers of polymer material being continuous through the at least one butt splice.
19. The package of tape according to claim 18 wherein the splice is a butt splice.
20. The package of tape according to claim 18 wherein the splice is welded.
21. The package of tape according to claim 18 wherein the layers of the polymer material are laminated together on each side edge of the steel tape to effect encapsulation of the steel tape and to cover the side edges of the steel tape with the polymer material.
22. The package of tape according to claim 18 wherein the splice is at an angle to a line transverse to the steel tape.
23. The package of tape according to claim 18 including a water swellable material on one of the sheets of polymer material so as to be carried as a strip on the finished tape.
24. The package of tape according to claim 23 wherein the water swellable material is covered by a moisture permeable covering protective layer.
25. The package of tape according to claim 9 wherein the water swellable material is spaced from at least one side edge of the finished tape.
26. A fiber optic cable comprising:
a cable core including at least one optical fiber;
a package of tape according to claim 18 wherein the tape is wrapped on the core as a sheath surrounding the core;
the tape being wrapped around the core so as to surround the core and define an edge of the inner surface which overlaps an edge of the outer surface and is heat bonded thereto;
and a jacket extruded over the tape and heat bonded to the polymer material on the outer surface;
the finished tape having a continuous length equal to the length of the cable.
27. The cable according to claim 26 wherein the layers of polymer material are wrapped around the edges of the steel tape to effect encapsulation of the steel tape and cover the side edges of the steel tape with the polymer material.
28. The cable according to claim 26 wherein the tape is corrugated transversely.