US2009107676A1PendingUtilityA1

Methods of Cementing in Subterranean Formations

37
Individually held — no corporate assignee on recordPriority: Oct 26, 2007Filed: Oct 26, 2007Published: Apr 30, 2009
Est. expiryOct 26, 2027(~1.2 yrs left)· nominal 20-yr term from priority
Inventors:James P. Saunders
E21B 33/14
37
PatentIndex Score
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Claims

Abstract

Methods of cementing are provided including a method comprising: a method of cementing in a well bore comprising providing a storable cement composition; placing the storable cement composition in an annulus in a reverse-circulation direction using cementing equipment supported by a trailer, wherein the annulus is formed by an outer surface of a casing in the well bore and an inner wall of the well bore; and allowing the storable cement composition to set in the annulus. In some embodiments, the storable cement composition may comprise a hydraulic cement, an aqueous fluid, and a set retarder. In some embodiments, a storable cement composition may be transported to the well bore using a trailer connected to a towing vehicle. Additional methods are also provided.

Claims

exact text as granted — not AI-modified
1 . A method of cementing in a well bore comprising:
 providing a storable cement composition;   placing the storable cement composition in an annulus in a reverse-circulation direction using cementing equipment supported by a trailer, wherein the annulus is formed by an outer surface of a casing in the well bore and an inner wall of the well bore; and   allowing the storable cement composition to set in the annulus.   
   
   
       2 . The method of  claim 1  wherein the trailer is moved by a towing vehicle, wherein the combination gross weight rating or combination gross vehicle weight of the trailer and the towing vehicle is less than 26,001 pounds. 
   
   
       3 . The method of  claim 1  wherein the cementing equipment comprises at least one selected from the group consisting of a bulk material container, a package holder, a bulk material conveyor, a package handler, a measuring device, and a combination thereof. 
   
   
       4 . The method of  claim 1  wherein the storable cement composition comprises a hydraulic cement, water, and a set retarder. 
   
   
       5 . The method of  claim 1  further comprising activating the storable cement composition. 
   
   
       6 . The method of  claim 5  wherein activating the storable cement composition comprises adding an activating agent to the storable cement composition using the cementing equipment supported by the trailer. 
   
   
       7 . The method of  claim 6  wherein the activating agent comprises at least one activating agent selected from the group consisting of sodium hydroxide, magnesium hydroxide, calcium hydroxide, sodium sulfate, sodium aluminate, potassium aluminate, sodium carbonate, silicates, calcium chloride, paraformaldehyde and combinations thereof. 
   
   
       8 . A method of cementing in a well bore comprising:
 providing a storable cement composition comprising a hydraulic cement, an aqueous fluid, and a set retarder;   placing the storable cement composition in an annulus in a reverse-circulation direction using cementing equipment supported by a trailer, wherein the annulus is formed by an outer surface of a casing in the well bore and an inner wall of the well bore; and   allowing the storable cement composition to set in the annulus.   
   
   
       9 . The method of  claim 8  wherein the cementing equipment comprises at least one selected from the group consisting of a bulk material container, a package holder, a bulk material conveyor, a package handler, a measuring device, and a combination thereof. 
   
   
       10 . The method of  claim 8  wherein the trailer is moved by a towing vehicle, wherein the combination gross weight rating or combination gross vehicle weight of the trailer and the towing vehicle is less than 26,001 pounds. 
   
   
       11 . (canceled) 
   
   
       12 . The method of  claim 8  further comprising activating the storable cement composition. 
   
   
       13 . The method of  claim 12  wherein activating the storable cement composition comprises adding an activating agent to the storable cement composition using the cementing equipment supported by the trailer. 
   
   
       14 . The method of  claim 13  wherein the activating agent comprises at least one activating agent selected from the group consisting of sodium hydroxide, magnesium hydroxide, calcium hydroxide, sodium sulfate, sodium aluminate, potassium aluminate, sodium carbonate, silicates, calcium chloride, paraformaldehyde and combinations thereof. 
   
   
       15 . A method of cementing in a well bore comprising:
 providing a storable cement composition;   transporting the storable cement composition to the well bore using a trailer connected to a towing vehicle, wherein the combination gross weight rating or combination gross vehicle weight of the trailer and the towing vehicle is less than 26,001 pounds;   placing the storable cement composition in an annulus in a reverse-circulation direction using cementing equipment supported by the trailer, wherein the annulus is formed by an outer surface of a casing in the well bore and an inner wall of the well bore; and   allowing the storable cement composition to set in the annulus.   
   
   
       16 . The method of  claim 15  wherein the cementing equipment comprises at least one selected from the group consisting of a bulk material container, a package holder, a bulk material conveyor, a package handler, a measuring device, and a combination thereof. 
   
   
       17 . The method of  claim 15  further comprising activating the storable cement composition. 
   
   
       18 . The method of  claim 17  wherein activating the storable cement composition comprises adding an activating agent to the storable cement composition using cementing equipment supported by a trailer. 
   
   
       19 . The method of  claim 18  wherein the activating agent comprises at least one activating agent selected from the group consisting of sodium hydroxide, magnesium hydroxide, calcium hydroxide, sodium sulfate, sodium aluminate, potassium aluminate, sodium carbonate, silicates, calcium chloride, paraformaldehyde and combinations thereof 
   
   
       20 . The method of  claim 15  wherein providing the storable cement composition comprises mixing a cement composition using cementing equipment supported by a trailer. 
   
   
       21 . The method of  claim 15  wherein the storable cement composition comprises a hydraulic cement, water, and a set retarder.

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