David Antony Ballard
David Antony Ballard, Kincardineshire GB
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20110053809 | DEGRADABLE NON-AQUEOUS GEL SYSTEMS - A method of treating a formation that includes exposing a region of the formation occupied by a hydrolysable gel to a hydrolyzing agent; and allowing sufficient time for the hydrolyzing agent to hydrolyze the gel. Various methods may also include the use of a swelling agent to allow for expansion of the gel. | 03-03-2011 |
David Antony Ballard, Aberdeenshire GB
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20100210480 | USE OF INVERT EPOXY EMULSIONS FOR WELLBORE STABILIZATION - An invert emulsion wellbore fluid, including: a continuous oleaginous phase; a discontinuous non-oleaginous phase; a stabilizing agent; an oil-immiscible epoxy-based resin; and a hardening agent; wherein the wellbore fluid is a stable emulsion having a viscosity greater than 200 cps. In some embodiments, the hardening agent is an oil-miscible hardening agent; in other embodiments, the hardening agent is an oil-immiscible hardening agent. | 08-19-2010 |
20100258313 | INVERT SILICATE FLUIDS FOR WELLBORE STRENGTHENING - A wellbore fluid that includes an oleaginous continuous phase; a non-oleaginous discontinuous phase comprising a water-soluble silicate therein; and an emulsifier to stabilize the non-oleaginous phase dispersed in the oleaginous phase is disclosed. A setting agent, including organic or inorganic setting agent may optionally be included to trigger gelation or precipitation of the silicate downhole. | 10-14-2010 |
20100326660 | USE OF DIRECT EPOXY EMULSIONS FOR WELLBORE STABILIZATION - A direct emulsion wellbore fluid, including: a continuous non-oleaginous phase; a discontinuous oleaginous phase; a stabilizing agent; an oil-miscible epoxy-based resin; and a hardening agent; wherein the wellbore fluid is a stable emulsion having a viscosity greater than 200 cps. In some embodiments, the hardening agent is an oil-miscible hardening agent; in other embodiments, the hardening agent is an oil-immiscible hardening agent. | 12-30-2010 |
20110024122 | METHODS AND SYSTEMS OF TREATING A WELLBORE - Embodiments disclosed herein relate to methods of treating a wellbore ( | 02-03-2011 |
20120202718 | PRECIPITATED WEIGHTING AGENTS FOR USE IN WELLBORE FLUIDS - A method of formulating a wellbore fluid that includes precipitating a weighting agent from a solution; and adding the precipitated weighting agent to a base fluid to form a wellbore fluid is disclosed. Fluids and methods of formulating wellbore fluids that contain dispersant coated precipitated weighting agents are also disclosed. | 08-09-2012 |
20120234544 | DEGRADABLE GELS IN ZONAL ISOLATION APPLICATIONS - A method of treating a formation that includes emplacing an oxidizing breaker fluid into a region of the formation occupied by a gel; and allowing sufficient time for the oxidizing breaker fluid to degrade the gel is disclosed. | 09-20-2012 |
20140162909 | PRECIPITATED WEIGHTING AGENTS FOR USE IN WELLBORE FLUIDS - A method of formulating a wellbore fluid that includes precipitating a weighting agent from a solution; and adding the precipitated weighting agent to a base fluid to form a wellbore fluid is disclosed. Fluids and methods of formulating wellbore fluids that contain dispersant coated precipitated weighting agents are also disclosed. | 06-12-2014 |
David Antony Ballard, Aberdeenshire, Scotland GB
Patent application number | Description | Published |
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20100197528 | DEGRADABLE GELS IN ZONAL ISOLATION APPLICATIONS - A method of treating a formation that includes emplacing an oxidizing breaker fluid into a region of the formation occupied by a gel; and allowing sufficient time for the oxidizing breaker fluid to degrade the gel is disclosed. | 08-05-2010 |
David Antony Ballard, Scotland GB
Patent application number | Description | Published |
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20100009874 | PRECIPITATED WEIGHTING AGENTS FOR USE IN WELLBORE FLUIDS - A method of formulating a wellbore fluid that includes precipitating a weighting agent from a solution; and adding the precipitated weighting agent to a base fluid to form a wellbore fluid is disclosed. Fluids and methods of formulating wellbore fluids that contain dispersant coated precipitated weighting agents are also disclosed. | 01-14-2010 |
20100087566 | USE OF ELASTOMERS TO PRODUCE GELS FOR TREATING A WELLBORE - A method of treating an earth formation that includes introducing at least one blocked isocyanate in a liquid phase into the earthen formation; introducing at least one active hydrogen compound into the earthen formation; and contacting the blocked isocyante and the active hydrogen compound form an elastomeric gel is disclosed. | 04-08-2010 |
20100120944 | USE OF CURABLE LIQUID ELASTOMERS TO PRODUCE GELS FOR TREATING A WELLBORE - A method of treating an earth formation that includes introducing at least one curable liquid elastomer composition in a liquid phase into the earthen formation; introducing at least one curing agent into the earthen formation; and contacting the curable elastomer composition and curing agent to form a non-aqueous gel is disclosed. | 05-13-2010 |
David Antony Ballard, Stonehaven GB
Patent application number | Description | Published |
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20120061083 | WELLBORE FLUID AND METHODS OF TREATING AN EARTHEN FORMATION - The present application describes improved compositions for wellbore fluids for use in downhole (e.g. oilwell) applications. The compositions comprise a blocked isocyanate (BI) component having a tolerance improving group (such as a hydrophilic group, e.g. an amine) bonded to it, and an active hydrogen component. When the BI group is unblocked, it reacts with the active hydrogen component to form a gel which, by virtue of the tolerance improving group, is more tolerant to contaminants (such as aqueous inorganic salts or brines) than the corresponding gel forms from unmodified BI. The application also relates to methods of treating an earthen formation using such a composition. | 03-15-2012 |