Systems and methods for producing oil and/or gas

Abstract

A system for producing oil and/or gas from an underground formation comprising a first well above the formation; the first well comprises a mechanism to inject a miscible enhanced oil recovery formulation into the formation; the first well comprises a first tubular and a second tubular, the first tubular threadingly engaged with the second tubular; a thread compound disposed on at least one of a thread of the first tubular and a thread of the second tubular; the thread compound comprises an additive adapted to swell when exposed to the miscible enhanced oil recovery formulation

1 . A system for producing oil and/or gas from an underground formation comprising:
 a first well above the formation;   the first well comprises a mechanism to inject a miscible enhanced oil recovery formulation into the formation;   the first well comprises a first tubular and a second tubular, the first tubular threadingly engaged with the second tubular;   a thread compound disposed on at least one of a thread of the first tubular and a thread of the second tubular;   the thread compound comprises an additive adapted to swell when exposed to the miscible enhanced oil recovery formulation.   
     
     
         2 . The system of  claim 1 , further comprising:
 a second well above the formation, the second well comprising a mechanism to produce oil and/or gas from the formation.   
     
     
         3 . The system of  claim 2 , wherein the first well is at a distance of 10 meters to 1 kilometer from the second well. 
     
     
         4 . The system of  claim 1 , further comprising a mechanism for injecting an immiscible enhanced oil recovery formulation into the formation after the miscible enhanced oil recovery formulation has been released into the formation. 
     
     
         5 . The system of  claim 1 , further comprising a miscible enhanced oil recovery formulation selected from the group consisting of a carbon disulfide formulation, a carbon oxysulfide formulation, hydrogen sulfide, carbon dioxide, octane, pentane, LPG, C2-C6 aliphatic hydrocarbons, nitrogen, diesel, mineral spirits, naptha solvent, asphalt solvent, kerosene, acetone, xylene, trichloroethane, and mixtures thereof. 
     
     
         6 . The system of  claim 5 , wherein the miscible enhanced oil recovery formulation is selected from the group consisting of a carbon disulfide formulation, a carbon oxysulfide formulation, and mixtures thereof. 
     
     
         7 . The system of  claim 1 , further comprising an immiscible enhanced oil recovery formulation selected from the group consisting of water in gas or liquid form, air, and mixtures thereof. 
     
     
         8 . The system of  claim 1 , further comprising a miscible enhanced oil recovery formulation comprising a carbon disulfide formulation. 
     
     
         9 . The system of  claim 1 , further comprising a mechanism for producing a carbon disulfide formulation. 
     
     
         10 . The system of  claim 1 , wherein the underground formation comprises an oil having a viscosity from 100 to 5,000,000 centipoise. 
     
     
         11 . A method for producing oil and/or gas comprising:
 lowering a first tubular into a first well;   threadingly engaging the first tubular to a second tubular;   lowering the second tubular into the first well;   injecting a carbon disulfide formulation into a formation from the first well;   wherein threadingly engaging the first tubular to the second tubular comprises placing a thread compound on at least one of a thread on the first tubular and a thread on the second tubular, the thread compound comprises an additive adapted to swell when exposed to the carbon disulfide formulation.   
     
     
         12 . The method of  claim 11 , further comprising:
 producing oil and/or gas from the formation from a second well.   
     
     
         13 . The method of  claim 11 , wherein injecting the carbon disulfide formulation comprises injecting at least a portion of the carbon disulfide formulation into the formation in a mixture with one or more of hydrocarbons; sulfur compounds other than carbon disulfide; carbon dioxide;
 carbon monoxide; or mixtures thereof.   
     
     
         14 . The methods of  claim 11 , further comprising heating the carbon disulfide formulation prior to injecting the carbon disulfide formulation into the formation or while within the formation. 
     
     
         15 . The method of  claim 11 , wherein the carbon disulfide formulation is injected at a pressure from 0 to 37,000 kilopascals above the initial reservoir pressure, where the initial reservoir pressure is measured prior to when carbon disulfide injection begins. 
     
     
         16 . The method of  claim 11 , wherein the underground formation comprises a permeability from 0.0001 to 15 Darcies. 
     
     
         17 . The method of  claim 11 , wherein any oil, as present in the underground formation prior to the injecting the carbon disulfide formulation, has a sulfur content from 0.5% to 5%. 
     
     
         18 . The method of  claim 11 , further comprising converting at least a portion of the recovered oil and/or gas into a transportation fuel. 
     
     
         19 . The method of  claim 11 , wherein the additive has a volume that increases by at least 20% when exposed to the carbon disulfide formulation. 
     
     
         20 . The method of  claim 11 , wherein the additive comprises an elastomer. 
     
     
         21 . The method of  claim 11 , wherein the thread compound comprises a base comprising grease and an additive comprising rubber. 
     
     
         22 . The method of  claim 11 , further comprising recovering carbon disulfide formulation from the oil and/or gas and then injecting at least a portion of the recovered carbon disulfide formulation into the formation.