Methods and compositions for wellbore treating fluids, especially settable spotting fluids, that include zeolite and at least one carrier fluid.
대표청구항▼
The invention claimed is: 1. A method of performing operations in a wellbore comprising: penetrating a subterranean zone with a wellbore; introducing a wellbore treating fluid comprising zeolite and at least one carrier fluid into the wellbore; introducing a subsequent composition to displace all b
The invention claimed is: 1. A method of performing operations in a wellbore comprising: penetrating a subterranean zone with a wellbore; introducing a wellbore treating fluid comprising zeolite and at least one carrier fluid into the wellbore; introducing a subsequent composition to displace all but a remaining portion of the wellbore treating fluid from the wellbore; and setting the zeolite in the remaining portion of the wellbore treating fluid with a compressive strength-developing amount of at least one activator, wherein the zeolite is selected from the group consisting of analcime, bikitaite, brewsterite, chabazite, clinoptilolite, faujasite, harmotome, heulandite, laumontite, mesolite, natrolite, paulingite, phillipsite, scolecite, stellerite, stilbite, and thomsonite. 2. The method of claim 1 wherein the subsequent composition comprises the compressive strength-developing amount of the activator. 3. The method of claim 1 wherein the remaining portion of the wellbore treating fluid is in one or more of a filter cake, fissure, fracture, cavern, vug, thief zone, low pressure subterranean zone, and high pressure subterranean zone in the wellbore. 4. The method of claim 3 wherein setting the zeolite seals one or more of a fissure, fracture, cavern, vug, thief zone, low pressure subterranean zone, and high pressure subterranean zone in the wellbore. 5. The method of claim 1 wherein the penetrating of the subterranean zone with a wellbore comprises drilling the wellbore with a mud, and wherein the introducing of the wellbore treating fluid at least partially displaces the mud from the wellbore. 6. The method of claim 1 wherein the at least one activator is selected from the group consisting of calcium hydroxide, sodium silicate, sodium fluoride, sodium silicofluoride, magnesium silicofluoride, zinc silicofluoride, sodium carbonate, potassium carbonate, sodium hydroxide, potassium hydroxide, sodium sulfate, and mixtures thereof. 7. The method of claim 1 wherein the subsequent composition comprises: a slurry comprising cement and a compressive strength-developing amount of at least one activator; and wherein the at least one activator diffuses into contact with the zeolite in the remaining portion of the wellbore treating fluid. 8. The method of claim 7 wherein the at least one activator is selected from the group consisting of calcium hydroxide, sodium silicate, sodium fluoride, sodium silicofluoride, magnesium silicofluoride, zinc silicofluoride, sodium carbonate, potassium carbonate, sodium hydroxide, potassium hydroxide, sodium sulfate, and mixtures thereof. 9. The method of claim 1 wherein the subsequent composition comprises: at least one of a mud, a spotting fluid, a pill and a cement slurry comprising a the compressive strength-developing amount of the at least one activator. 10. The method of claim 9 wherein the at least one activator is selected from the group consisting of calcium hydroxide, sodium silicate, sodium fluoride, sodium silicofluoride, magnesium silicofluoride, zinc silicofluoride, sodium carbonate, potassium carbonate, sodium hydroxide, potassium hydroxide, sodium sulfate, and mixtures thereof. 11. The method of claim 1 wherein the at least one carrier fluid comprises a water-based carrier fluid in an amount of from about 100 to about 200 percent by weight of the zeolite. 12. The method of claim 1 wherein the at least one carrier fluid is selected from the group consisting of water and water-based gels. 13. The method of claim 1 wherein the at least one carrier fluid is selected from the group consisting of fresh water, unsaturated salt solution, brine, seawater, and saturated salt solution. 14. The method of claim 1 wherein the at least one carrier fluid comprises an oil-based fluid selected from the group consisting of canola oil, kerosene, diesel oil, fish oil, mineral oil, sunflower oil, corn oil, soy oil, olive oil, cottonseed oil, peanut oil and paraffin. 15. The method of claim 1 wherein the wellbore treating fluid further comprises the compressive strength-developing amount of the at least one activator, and at least one retarder. 16. The method of claim 15 wherein the remaining portion of the wellbore treating fluid is in one or more of a filter cake, fissure, fracture, cavern, vug, thief zone, low pressure subterranean zone, and high pressure subterranean zone in the wellbore. 17. The method of claim 16 wherein the setting of the zeolite seals one or more of a fissure, fracture, cavern, vug, thief zone, low pressure subterranean zone, and high pressure subterranean zone in the wellbore. 18. The method of claim 15 wherein the at least one activator is selected from the group consisting of calcium hydroxide, sodium silicate, sodium fluoride, sodium silicofluoride, magnesium silicofluoride, zinc silicofluoride, sodium carbonate, potassium carbonate, sodium hydroxide, potassium hydroxide, sodium sulfate, and mixtures thereof. 19. The method of claim 15 wherein the at least one retarder is selected from the group consisting of lignosulfonates, citric acids, tartaric acids, gluconic acids, organic acids having an α-hydroxy group, and combinations thereof. 20. The method of claim 15 further comprising placing a cement slurry in the wellbore after the introducing of the subsequent composition. 21. The method of claim 15 wherein the introducing of the subsequent composition comprises introducing at least one of a mud, a spotting fluid, a pill and a cement slurry into the wellbore. 22. The method of claim 21 wherein the subsequent composition comprises at least one activator. 23. The method of claim 22 wherein the at least one activator is selected from the group consisting of calcium hydroxide, sodium silicate, sodium fluoride, sodium silicofluoride, magnesium silicofluoride, zinc silicofluoride, sodium carbonate, potassium carbonate, sodium hydroxide, potassium hydroxide, sodium sulfate, and mixtures thereof. 24. A method of performing operations in a wellbore comprising: drilling a wellbore in a subterranean zone with a mud; introducing a wellbore treating fluid comprising zeolite and at least one carrier fluid into the wellbore, wherein the wellbore treating fluid at least partially displaces the mud from the wellbore; introducing a subsequent composition into the wellbore, wherein the subsequent composition displaces all but a remaining portion of the wellbore treating fluid from the wellbore; and setting the zeolite in the remaining portion of the wellbore treating fluid with a compressive strength developing amount of at least one activator. 25. The method of claim 24 wherein the at least one activator is selected from the group consisting of calcium hydroxide, sodium silicate, sodium fluoride, sodium silicofluoride, magnesium silicofluoride, zinc silicofluoride, sodium carbonate, potassium carbonate, sodium hydroxide, potassium hydroxide, sodium sulfate, and mixtures thereof. 26. The method of claim 24 wherein the subsequent composition comprises the compressive strength developing amount of the at least one activator. 27. The method of claim 26 wherein the subsequent composition comprises a cement slurry, and further comprising allowing the at least one activator to diffuse from the cement slurry into contact with the zeolite in the remaining portion of the wellbore treating fluid. 28. The method of claim 24 wherein the wellbore treating fluid further comprises the compressive-strength developing amount of the least one activator, and at least one retarder. 29. The method of claim 24 wherein the setting of the zeolite seals one or more of a fissure, fracture, cavern, vug, thief zone, low pressure subterranean zone, and high pressure subterranean zone in the wellbore. 30. The method of claim 24 wherein the zeolite is represented by the formula: description="In-line Formulae" end="lead"M a/n[(AlO2)a(SiO2)b]쨌xH2 Odescription="In-line Formulae" end="tail" where M represents one or more cations selected from the group consisting of Na, K, Mg, Ca, Sr, Li, Ba,NH4, CH3 NH3, (CH3)3NH, (CH3)4N, Ga, Ge and P; n represents the cation valence; the ratio of b:a is in a range from greater than or equal to 1 and less than or equal to 5; and x represents the moles of water entrained into the zeolite framework. 31. The method of claim 24 wherein the zeolite is selected from the group consisting of analcime, bikitaite, brewsterite, chabazite, clinoptilolite, faujasite, harmotome, heulandite, laumontite, mesolite, natrolite, paulingite, phillipsite, scolecite, stellerite, stilbite, and thomsonite. 32. The method of claim 24 wherein the at least one carrier fluid is selected from the group consisting of water and water-based gels. 33. The method of claim 24 wherein the at least one carrier fluid is selected from the group consisting of fresh water, unsaturated salt solution, brine, seawater, and saturated salt solution. 34. The method of claim 24 wherein the at least one carrier fluid comprises an oil-based fluid selected from the group consisting of canola oil, kerosene, diesel oil, fish oil, mineral oil, sunflower oil, corn oil, soy oil, olive oil, cottonseed oil, peanut oil and paraffin. 35. A method of performing operations in a wellbore comprising: introducing a wellbore treating fluid comprising zeolite and at least one carrier fluid into a wellbore penetrating a subterranean zone, wherein the at least one carrier fluid comprises an oil-based fluid selected from the group consisting of canola oil, kerosene, diesel oil, fish oil, mineral oil, sunflower oil, corn oil, soy oil, olive oil, cottonseed oil, peanut oil and paraffin; introducing a subsequent composition into the wellbore, wherein the subsequent composition displaces all but a remaining portion of the wellbore treating fluid from the wellbore; and setting the zeolite in the remaining portion of the wellbore treating fluid with a compressive-strength developing amount of at least one activator. 36. The method of claim 35 wherein the subsequent composition comprises the compressive-strength developing amount of the at least one activator. 37. The method of claim 36 wherein the subsequent composition comprises at least one of a mud, a spotting fluid, a pill and a cement slurry. 38. The method of claim 35 wherein the at least one activator is selected from the group consisting of calcium hydroxide, sodium silicate, sodium fluoride, sodium silicofluoride, magnesium silicofluoride, zinc silicofluoride, sodium carbonate, potassium carbonate, sodium hydroxide, potassium hydroxide, sodium sulfate, and mixtures thereof. 39. The method of claim 35 wherein the wellbore treating fluid further comprises the compressive-strength developing amount of the least one activator, and at least one retarder. 40. The method of claim 35 wherein the setting of the zeolite seals one or more of a fissure, fracture, cavern, vug, thief zone, low pressure subterranean zone, and high pressure subterranean zone in the wellbore. 41. The method of claim 35 wherein the zeolite is represented by the formula: description="In-line Formulae" end="lead"M a/n[(AlO2)a(SiO2)b]쨌xH2 Odescription="In-line Formulae" end="tail" where M represents one or more cations selected from the group consisting of Na, K, Mg, Ca, Sr, Li, Ba,NH4, CH3 NH3, (CH3)3NH, (CH3)4N, Ga, Ge and P; n represents the cation valence; the ratio of b:a is in a range from greater than or equal to 1 and less than or equal to 5; and x represents the moles of water entrained into the zeolite framework. 42. The method of claim 35 wherein the zeolite is selected from the group consisting of analcime, bikitaite, brewsterite, chabazite, clinoptilolite, faujasite, harmotome, heulandite, laumontite, mesolite, natrolite, paulingite, phillipsite, scolecite, stellerite, stilbite, and thomsonite.
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