Wellbore Treatment System

Abstract

A method and system for treating a wellbore, where an additive casting having energetic material and a treatment substance is deployed downhole, and then the energetic material is reacted so that it releases the treatment substance into the wellbore. A perforating system is used to initiate the reaction of the energetic material. An example of the energetic material includes a propellant that generates gases which urge the treatment substance into openings in sidewalls of the wellbore, such as perforations or fractures. One embodiment of the treatment substance includes a crystalline anhydrous acid.

What is claimed is: 
     
         1 . A method of operations in a wellbore comprising:
 deploying a downhole tool in the wellbore, the downhole tool comprising an additive casting that comprises an energetic material and a crystalline anhydrous acid;   positioning the downhole tool at a designated depth in the wellbore; and   causing a reaction of the energetic material to generate energy that drives the crystalline anhydrous acid into an opening formed in a sidewall of the wellbore thereby increasing a flow of hydrocarbons through the opening.   
     
     
         2 . The method of  claim 1 , wherein the downhole tool further comprises an explosive, and wherein the step of causing a reaction of the energetic material comprises initiating detonation of the explosive so that detonation products of the explosive contact the energetic material at a temperature to initiate reaction of the energetic material. 
     
     
         3 . The method of  claim 1 , wherein the energy is from expanding gas produced by the reaction of the energetic material, and wherein the energetic material is reacted concurrent with forming perforations in a sidewall of the wellbore, so that the treatment substance is forced into the perforations by the expanding gas. 
     
     
         4 . The method of  claim 3 , wherein the downhole tool comprises a perforating gun, and wherein the explosive comprises high explosive disposed in a plurality of shaped charges that are set radially inward from the additive casting, so that when high explosive in the shaped charges are detonated, detonation products are generated from detonation of the high explosive that contact the energetic material at a temperature to initiate reaction of the energetic material. 
     
     
         5 . The method of  claim 4 , wherein detonation of the shaped charges form perforations in a sidewall of the wellbore, wherein a plurality of openings are formed in the sidewall of the wellbore, and wherein the perforations define the openings 
     
     
         6 . The method of  claim 1 , wherein the additive casting is formed into an annular member that circumscribes a portion of the tool. 
     
     
         7 . The method of  claim 1 , wherein the additive casting is formed into a planar member and disposed inside a body of the tool. 
     
     
         8 . The method of  claim 1 , wherein the acid dissolves rock inside of the opening. 
     
     
         9 . The method of  claim 1 , wherein the energetic material comprises a propellant. 
     
     
         10 . A downhole tool for use in operations in a wellbore comprising:
 a housing;   explosive in the housing and that is strategically oriented, so that when the explosive is detonated, detonation products are formed that travel along a designated path; and   an additive casting that is intersected by the designated path, the additive casting comprising a solid matrix of a settable material, and an energetic material and a wellbore treatment material embedded within the settable material, so that when a reaction in the energetic material is initiated in the wellbore, the wellbore treatment material is released into the wellbore.   
     
     
         11 . The downhole tool of  claim 10 , wherein the wellbore treatment fluid comprises an anhydrous crystalline acid that is reactive with rock that is intersected by a downhole perforation. 
     
     
         12 . The downhole tool of  claim 10 , wherein the energetic material comprises a substance that produces energy or pressurized gas when reacted and is selected from the group consisting of a propellant, an oxidizer, ammonium perchlorate, potassium perchlorate, and combinations thereof. 
     
     
         13 . The downhole tool of  claim 10 , wherein the housing comprises a perforating gun body, wherein the explosive comprises a high explosive within a shaped charge, and wherein detonating the high explosive forms openings in a sidewall of the wellbore. 
     
     
         14 . The downhole tool of  claim 13 , wherein the additive casting comprises an annular member coupled with the housing. 
     
     
         15 . The downhole tool of  claim 10 , further comprising a controller in communication with the explosive. 
     
     
         16 . A method of wellbore operations comprising:
 disposing an additive casting in the wellbore, the additive casting comprising an energetic material and wellbore treatment material combined in a solid matrix; and   introducing the wellbore treatment material into an opening in a sidewall of the wellbore by initiating a reaction of the energetic material that releases the wellbore treatment material from the matrix, and generates a gas that drives the wellbore treatment material into the opening.   
     
     
         17 . The method of  claim 16 , further comprising forming the opening by detonating a shaped charge downhole that is oriented to the sidewall. 
     
     
         18 . The method of  claim 17 , wherein the additive casting is disposed in a path of detonation product discharged from the shaped charge, and wherein the detonation product is at a temperature that initiates the reaction of the energetic material. 
     
     
         19 . The method of  claim 16 , wherein the wellbore treatment material comprises a crystalline anhydrous acid that when in the wellbore reconstitutes as a liquid and reacts with rock inside of the opening. 
     
     
         20 . The method of  claim 16 , wherein the reactive material comprises a propellant.