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US 11,306,241 B2Granted
Geochemically-driven wettability modification for subterranean surfaces
AssigneeHalliburton Energy Services, Inc.
InventorsEnrique Antonio Reyes, Denise Nicole Benoit, Ronald Glen Dusterhoft
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Abstract
Systems, methods, and compositions that provide an energized natural gas (ENG) fracturing fluid including a complexing agent. A fracturing fluid may include: methane; water; a complexing agent; a surfactant; and wherein the fracturing fluid is an emulsion, the water is in a continuous phase of the emulsion, and methane is in a discrete phase of the emulsion.
Claims20
A method comprising:
- preparing a liquid additive comprising:
- a base fluid;
- a complexing agent selected from the group consisting of methylglycindiacetic acid (MGDA), glutamic acid diacetic acid (GLDA), (Hydroxyethyl)ethylenediaminetriacetic acid (HEDTA), ethylenediaminetetraacetic acid (EDTA), hydroxyiminodisuccinic acid (HIDS), polyether multicarboxylic acids, diethylenetriamine pentaacetate (DTPA), oxalic acid, citric acid, glycolic acid, lactic acid, and maleic acid, N-(Phosphonomethyl)iminodiacetic acid (PMIDA), phosphonotricarboxylic acid, and combinations thereof;
- and
- a water wetting surfactant;
- increasing a pressure of the liquid additive to above a fracture gradient of a subterranean formation;
- increasing a pressure of a natural gas stream, wherein the natural gas stream comprises liquefied natural gas or a compressed natural gas, to above the fracture gradient of the subterranean formation;
- mixing the liquid additive and natural gas stream to form a fracturing fluid;
- injecting the fracturing fluid into the subterranean formation;
- fracturing the subterranean formation to form or extend at least one fracture;
- allowing the complexing agent to react with the subterranean formation to form a surfactant bonding site;
- and
- adhering the water wetting surfactant to the surfactant bonding site.
10 more elements
A method comprising:
- preparing a liquid additive comprising:
- a base fluid;
- a complexing agent selected from the group consisting of methylglycindiacetic acid (MGDA), glutamic acid diacetic acid (GLDA), (Hydroxyethyl)ethylenediaminetriacetic acid (HEDTA), ethylenediaminetetraacetic acid (EDTA), hydroxyiminodisuccinic acid (HIDS), polyether multicarboxylic acids, diethylenetriamine pentaacetate (DTPA), oxalic acid, citric acid, glycolic acid, lactic acid, and maleic acid, N-(Phosphonomethyl)iminodiacetic acid (PMIDA), phosphonotricarboxylic acid, and combinations thereof;
- a water wetting surfactant;
- and
- a proppant;
- increasing a pressure of the liquid additive to above a fracture gradient of a subterranean formation;
- increasing a pressure of a liquefied natural gas to above the fracture gradient of the subterranean formation;
- heating the liquefied natural gas to produce a gaseous natural gas;
- mixing the liquid additive and gaseous natural gas to form a fracturing fluid;
- injecting the fracturing fluid into the subterranean formation;
- fracturing the subterranean formation to form or extend at least one fracture;
- allowing the complexing agent to react with the subterranean formation to form a surfactant bonding site;
- and
- adhering the water wetting surfactant to the surfactant bonding site.
12 more elements
Dependencies are inferred from the claim text.