What is claimed is:
1. A method for protecting files distributed over a network, comprising the steps of:
displaying a list of files;
generating protection status information in response to selection by a user of at least one of the files in the list of files; and
sending the protection status information to a server computer.
2. The method of claim 1 wherein said displaying step displays a list of files together with a corresponding protection status for each file in the list of files, and wherein the method further comprises the step of modifying protection status of at least one of the files, and wherein said sending step sends modified protection status information to a server computer.
3. The method of claim 1 further comprising recording the protection status information in a protection status database.
4. A system for protecting files distributed over a network, comprising:
a user interface displaying a list of files;
a protection status manager generating protection status information in response to selection by a user of at least one of the files in the list of files; and
a transmitter sending the protection status information to a server computer.
5. The system of claim 4 wherein said user interface displays a list of files together with a corresponding protection status for each file in the list of files, and wherein the protection status manager modifies protection status of at least one of the files, and wherein said transmitter sends modified protection status information to a server computer.
6. The system of claim 4 further comprising a database manager recording the protection status information in a protection status database.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A composition comprising:
(a) 95% to 35% water,
(b) 3% to 20% (wgt %) of tetrakis(hydroxymethyl)phosphonium sulfate,
(c) 3% to 30% (wgt %) of iminodissucinnic acid sodium salt,
(d) 0.1% to 5% (wgt %) of a soluble ammonium salt, and
(e) 0.1% to 3% (wgt %) of sodium hydroxide.
2. A composition for cleaning pipelines transporting natural gas and removing deposits of iron sulfide by forming water soluble iron complexes with the iron fraction of the iron sulfide, the composition comprising:
(a) 95% to 35% water,
(b) 3% to 20% (wgt %) of tetrakis (hydroxymethyl) phosphonium sulfate,
(c) 3% to 30% (wgt %) of iminodisuccinic acid sodium salt,
(d) 0.1% to 5% (wgt %) of a soluble ammonium salt, and
(e) 0.1% to 3% (wgt %) of sodium hydroxide.
3. The composition defined in claim 1 further comprising a surfactant.
4. The composition defined in claim 3 wherein the surfactant is selected from the group consisting of an ethoxylated alcohol, a dioctyl ester succinate, or a combination thereof.
5. The composition defined in claim 4 wherein the surfactant comprises 0.1% to 15% surfactant.
6. The composition defined in claim 1 further comprising a corrosion inhibitor.
7. The composition defined in claim 6 wherein the corrosion inhibitor comprises 0.1 to 15% corrosion inhibitor.
8. The composition defined in claim 1 further comprising a scale inhibitor.
9. The composition defined in claim 8 wherein the scale inhibitor is selected from the group consisting of a carboxylic acid, an acrylic polymer, a phosphate ester, an aminophosphonate, a phosphinocarboxylate, or a combination thereof.
10. The composition defined in claim 8 wherein the scale inhibitor comprises 0.1 to 5% scale inhibitor.
11. A method for cleaning pipelines transporting natural gas to and removing deposits of iron sulfide by forming water soluble iron complexes with the iron fraction of the iron sulfide, the method comprising the steps of:
(a) combining:
(1) 3% to 20% (wgt %) tetrakis(hydroxymethyl) phosphonium sulfate, and
(2) 3% to 30% (wgt %) iminodisuccinic acid sodium salt, to form a mixture, and
(b) adding the mixture to the natural gas pipeline such that the mixture removes the deposits of iron sulfide by forming a water soluble iron complex with the iron fraction of the iron sulfide.
12. The method for cleaning pipelines as defined in claim 11 wherein the step of adding the mixture to the natural gas pipeline further comprises the step of continuously adding the mixture to the natural gas pipeline.
13. The method for cleaning pipelines as defined in claim 11 wherein the step of adding the mixture to the natural gas pipeline further comprises the step of intermittently adding the mixture to the natural gas pipeline.
14. The method for cleaning pipelines as defined in claim 11 wherein the step of adding the mixture to the natural gas pipeline further comprises the step of adding in a batch volume the mixture to the natural gas pipeline.
15. A method for cleaning pipelines transporting natural gas and removing deposits of iron sulfide by forming water soluble iron complexes with the iron fraction of the iron sulfide, the method comprising the steps of:
(a) combining:
(1) 3% to 20% (wgt %) tetrakis(hydroxymethyl) phosphonium sulfate, and
(2) 3% to 30% (wgt %) iminodisuccinic acid sodium salt to form a first mixture,
(b) optionally, combining with the first mixture:
(1) 95% to 35% water,
(2) 0.1% to 5% (wgt %) of a soluble ammonium salt, and
(3) 0.1% to 3% (wgt %) sodium hydroxide, to form a second mixture, and
(c) adding a mixture to the natural gas pipeline from the group consisting of the first mixture and the second mixture.
16. The method for cleaning pipelines as defined in claim 15 wherein the step of adding the mixture to the natural gas pipeline further comprises the step of continuously adding the mixture to the natural gas pipeline.
17. The method for cleaning pipelines as defined in claim 15 wherein the step of adding the mixture to the natural gas pipeline further comprises the step of intermittently adding the mixture to the natural gas pipeline.
18. The method for cleaning pipelines as defined in claim 15 wherein the step of adding the mixture to the natural gas pipeline further comprises the step of adding in a batch volume the mixture to the natural gas pipeline.
19. A method for treating a conduit containing or in contact with water and a metal sulfide scale selected from the group consisting of Fe9S8 (mackinawite), FeS (troilite), FeS2 (marcasite), FeS2 (pyrite), Fe7S8 (pyrrhotite) and any combination thereof, said method comprising the steps of:
(a) adding sufficient tetrakis(hydroxymethyl)phosphonium sulfate to the conduit,
(b) adding sufficient iminodisuccinic acid sodium salt to the conduit to increase the overall effectiveness of the iron solubility capacity over the individual capacity of the tetrakis(hydroxymethyl)phosphonium sulfate and the iminodisuccinic acid sodium salt, and
(c) removing the scale from the pipeline network along with the water.
20. The method for cleaning pipelines as defined in claim 19 wherein the steps of adding to the conduit further comprises the step of continuously adding to the conduit.
21. The method for cleaning pipelines as defined in claim 19 wherein the steps of adding to the conduit further comprises the step of intermittently adding to the conduit.
22. The method for cleaning pipelines as defined in claim 19 wherein the steps of adding to the conduit further comprises the step of adding in a batch volume to the conduit.