| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 175017000 | WITH HEATING OR COOLING (1) WITHIN THE BORE, OR (2) DRILLING FLUID | 31 |
| 20080277162 | SYSTEM AND METHOD FOR CONTROLLING HEAT FLOW IN A DOWNHOLE TOOL - An apparatus is disclosed for controlling heat flow in a downhole tool using a thermal rectifier material. The thermal rectifier material is positioned between a heat source and a heat sink for reducing flow of heat returning from the heat sink to the heat source. That is, the thermal rectifier conceptually operates as a “thermal check valve” so that heat, which has flowed (or been pumped) out of a region, has difficulty returning to that region. Another embodiment of an apparatus is disclosed for controlling heat flow in a downhole tool, which includes a thermal rectifier material surrounding a liquid supply, wherein the thermal rectifier material allows more heat to flow through the thermal rectifier in a first direction away from the liquid supply than in a direction through the thermal rectifier material toward from the liquid supply. A method for controlling heat flow in a downhole tool using a thermal rectifier material is also disclosed. | 11-13-2008 |
| 20080314638 | Apparatus and Methods to Dissipate Heat in a Downhole Tool - Apparatus and methods to dissipate heat in a downhole tool are disclosed. A disclosed example tool collar includes a body having a first outer surface, a first fluid inlet, and a first fluid outlet. The example tool collar also includes a passageway formed therethrough, a second fluid inlet to engage the first fluid outlet of the body, a second fluid outlet to engage the first fluid inlet of the body, and a first inner surface having at least one protrusion extending into the passageway. | 12-25-2008 |
| 20090050367 | Cryogenic Pulsejet - A cryogenic system is described for boring a small-diameter hole through various materials including rock, soil and stone. It employs a valveless technique in a borehead [ | 02-26-2009 |
| 20090057012 | Heat exchanger system and well drilling equipment comprising same - A bearing cooling system comprises a bearing assembly, a heat exchanger, a coolant flow circuit apparatus and a lubricant flow circuit apparatus. The bearing assembly is configured for being removably seated within a well drilling head housing and for having a stripper rubber assembly attached thereto. The bearing assembly includes bearings and a lubricant flow path configured for allowing lubricant to be circulated through the bearings. The heat exchanger has a lubricant core portion and a coolant core portion, which are jointly configured for allowing heat transfer between respective fluids of the core portions. The coolant flow circuit apparatus is coupled to the coolant core portion and is configured for circulating coolant through the coolant core portion. The lubricant flow circuit apparatus is coupled to the lubricant core portion and lubricant flow path, and is configured for circulating lubricant through the coolant core portion and the lubricant flow path. | 03-05-2009 |
| 20090078461 | DRILLING SUBSURFACE WELLBORES WITH CUTTING STRUCTURES - A system for forming a wellbore includes a drill tubular. A drill bit is coupled to the drill tubular. One or more cutting structures are coupled to the drill tubular above the drill bit. The cutting structures remove at least a portion of formation that extends into the wellbore formed by the drill bit. | 03-26-2009 |
| 20090194329 | METHODS FOR FORMING WELLBORES IN HEATED FORMATIONS - A method for forming a wellbore in a heated formation includes flowing liquid cooling fluid to a bottom hole assembly in a wellbore in a heated formation. At least a portion of the liquid cooling fluid is vaporized at or near a region to be cooled. Vaporizing the liquid cooling fluid absorbs heat from the region to be cooled. | 08-06-2009 |
| 20090211811 | METHOD AND SYSTEM FOR INSTALLING GEOTHERMAL TRANSFER APPARATUSES WITH A SONIC DRILL AND A REMOVABLE OR RETRIEVABLE DRILL BIT - There is provided a method for drilling a cased hole and installing a geothermal transfer apparatus. A sonic drilling apparatus is positioned at a desired location. The sonic drilling apparatus includes a rotating and vibrating apparatus for rotating and vibrating a drill string into the ground. A retrievable drill bit is operatively connected to the drill string. The cased hole is drilled to a desired depth by rotating and vibrating the drill string into the ground. The retrievable drill bit is retrieved from the cased hole following the drilling of the cased hole to the desired depth. A geothermal transfer apparatus is lowered into the cased hole following the retrieval of the retrievable drill bit. Grouting material may be discharged into the cased hole before or after the drill string is removed from the ground. | 08-27-2009 |
| 20100108379 | SYSTEMS AND METHODS OF FORMING SUBSURFACE WELLBORES - A system for forming a subsurface wellbore includes a rack and pinion system including a chuck drive system. The chuck drive system operates a drilling string. An automatic position control system includes at least one measurement sensor coupled to the rack and pinion system. The automatic position control system controls the rack and pinion system to determine a position of the drilling string. | 05-06-2010 |
| 20100122846 | Boring green-hydro, cryo vertical drilling - A vertical water jet cutter method of boring holes in the ground and other solid substrate managing the difficulties of removing the center stone by freezing it until brittle, and cracking it from the base yet to be cut or fragmenting it and removing the material. This process is repeated until the desired or prescribed depth of the boring is reached. Means to handle unexpected dissembly of equipment in the boring is handled with tie-lines to each component placed to dangle the part in an orientation that will allow removal of the part without disturbing the walls of the boring. Means to handle invading ground water includes cryogenically freezing the region of the boring from where the water is flowing, melting the ice in the center of the boring, applying mortar to displace the melted ice and settle in the crevasses of the rock, curing it, and then water jet cutting the boring through the mortar and on into the rock below. With a deep area of ground water penetration, this process must be repeated. This type of water jet cutter boring has many applications from water well drilling, insitu fuel extraction, assaying minerals and more. Comparing this method with the standard drill methods, the equipment is low-profile, cost effective, and no waste. Water and grit are recycled, powdered stone, fragments, and whole center stones can be sold for use elsewhere. This method will not ruin the landscaping or forest floor beauty long term. The energy expended is directed at the cutting zone in the boring. | 05-20-2010 |
| 20100181110 | Green directional drilling fluid composition - A drilling fluid composition for horizontal directional drilling is a flowable aqueous slurry of biodegradable, non-toxic, preferably edible plant particles. The particle size of the plant-derived particles depends on the drill bit used. The particles should be small enough not to clog the fluid jet orifices in normal use. The slurry is pumped through to the drill bit in a warm or preferably hot state, e.g. 80-100° C. After ejection, the slurry cools rapidly, causing solidification and creating a lining on the tunnel wall. | 07-22-2010 |
| 20100218993 | Methods and Apparatus for Mechanical and Thermal Drilling - Methods and apparatus for excavation of a borehole in a geological formation are provided. Such methods may include providing a thermal system capable of providing substantially hot fluid, and comprising at least one jet nozzle, providing a mechanical drilling system comprising a drill bit, directing the substantially hot fluid through the jet nozzle towards the geological formation causing an altered portion of geological formation to form, and removing the altered portion using the drill bit, thereby creating cuttings and producing a borehole in the geological formation. | 09-02-2010 |
| 20100300751 | MOTOR COOLING RADIATORS FOR USE IN DOWNHOLE ENVIRONMENTS - Example motor cooling radiators for use in downhole environments are disclosed. A disclosed example radiator comprises a cylindrical housing having an annular passageway. The housing defines an inlet at a first end of the housing and an outlet at a second opposite end of the housing. A channel is arranged within the annular passageway of the housing along a spiral path to transport the first liquid and to define a spiral flow passageway between the inlet and the outlet for the second liquid. In operation, the first liquid does not contact the second liquid and heat is transferred between the first and second liquids as the second liquid flows in the spiral passageway. | 12-02-2010 |
| 20110079430 | Rotating Control Device, Cool Fluid Circulation System And Methods Of Operation - Systems and methods for cooling a Rotating Control Device (RCD) and RCD insert during drilling operations are described. The system includes a body for connection between the RCD and a hot drilling fluid return outlet of a well head, the body including an inlet for injecting cool drilling fluid adjacent the RCD insert and an outlet for removing partially warmed drilling fluid. During operation, cool drilling fluid is circulated through the inlet and outlet such that cool drilling fluid is in direct contact with hot drilling fluid recovered from the well in a buffer zone adjacent the hot drilling fluid return outlet. | 04-07-2011 |
| 20130020128 | SYSTEM AND METHOD FOR THE THERMAL CONDITIONING OF A FLUID MORE PARTICULARLY A DRILLING MUD - A system for the thermal conditioning of a fluid, more particularly of a drilling mud, in preparation for subsequent cycles of analysis of the composition of said fluid is disclosed, wherein the system provides for the presence of at least one generator of microwaves for the heating of said fluid and a cylinder of non-stick material wherein said fluid flows; said system and method being such that the heating of said mud takes place in less than 70 seconds. | 01-24-2013 |
| 20130032400 | Cooled-fluid Systems and Methods for Pulsed-Electric Drilling - In at least some embodiments, a pulsed-electric drilling system includes a bit that extends a borehole by detaching formation material with pulses of electric current, and a drillstring that defines at least one path for a fluid flow to the bit to flush detached formation material from the borehole. A feed pipe transports at least a part of said fluid flow to said path, and the feed pipe is equipped with a cooling mechanism to cool the fluid flow. The use of a cooled fluid flow may enhance the performance of the pulsed-electric drilling process. | 02-07-2013 |
| 20130056271 | ROCK DRILLING RIG, METHOD FOR CONTROLLING THE TEMPERATURE OF ITS DRIVE EQUIPMENT, AND LIQUID COOLING SYSTEM - The invention relates to a rock drilling rig, a method for controlling the temperature of its drive equipment, and a liquid cooling system. The rock drilling rig includes combustion-engine-free drive equipment, which includes electric components for affecting transfer drive. The rock drilling rig is also provided with a liquid cooling system, to which one or more electric components affecting the transfer drive are connected to be cooled by the system. The cooling of the components is controlled by a control unit according to a strategy set therein. The cooling system may additionally be precooled before the transfer drive. | 03-07-2013 |
| 20130081875 | Umbilical technique for robotic mineral mole - Exemplary methods, systems and components disclosed herein provide propagation of light signals from an external source to a borehole mining mole which includes an optical/electric transducer configured to provide propulsive power for the borehole mining mole and its associated mineral prospecting tools. Some embodiments include one or more umbilicals connected from a remote source location to an onboard reel incorporated with the borehole mining mole. The umbilicals are spooled outwardly or inwardly from the onboard reel during traverse of the borehole mining mole along a path in an earthen environment. | 04-04-2013 |
| 20130264118 | Methods and Apparatus for Mechanical and Thermal Drilling - Methods and apparatus for excavation of a borehole in a geological formation are provided. Such methods may include providing a thermal system capable of providing substantially hot fluid, and comprising at least one jet nozzle, providing a mechanical drilling system comprising a drill bit, directing the substantially hot fluid through the jet nozzle towards the geological formation causing an altered portion of geological formation to form, and removing the altered portion using the drill bit, thereby creating cuttings and producing a borehole in the geological formation. | 10-10-2013 |
| 20140000963 | System And Method For Moving A First Fluid Using A Second Fluid | 01-02-2014 |
| 20140008124 | DRILLING TECHNOLOGY - A drilling apparatus ( | 01-09-2014 |
| 20140158426 | Downhole Motors Having Adjustable Power Units - A downhole drilling motor for well drilling operations includes a tubular housing and a stator disposed in the tubular housing. The stator defines an internal cavity passing therethrough, wherein the stator includes one or more lobes defining at least a portion of the cavity. A rotor is operatively positioned in the internal cavity to cooperate with the one or more lobes of the stator. At least a portion of the stator or of the rotor comprises a memory material adapted to expand or contract when heat is applied by a localized heating module to the memory material. A fluid escape gap between the rotor and stator is adjusted by applying heat to the rotor and/or stator. At least one controller is adapted to receive input data and provide output signals increasing and/or decreasing electrical current applied to the at least one localized heating module. | 06-12-2014 |
| 20140299375 | METHOD OF CONDITIONING A WALL OF A BORE SECTION - A method to condition a portion of a wall surrounding a borehole section drilled in a formation fluid-bearing formation comprising locally injecting a gas to displace working fluid from a laser path adjacent a drill head, providing an underbalanced pressure at the portion of the borehole section to be conditioned, impinging laser light on the portion of the wall to be conditioned to melt a component of the formation material in the portion of the bore wall to be conditioned, and drawing fluid from the formation through the solidifying component of the material to create fluid flow passageways to facilitate the flow of fluid from the formation into the borehole section. Injected gas may be provided to the drill head through a conduit within an umbilical that includes a plurality of optical fibers to transmit laser light to the drill head. | 10-09-2014 |
| 20140326504 | PIPE IN PIPE DOWNHOLE ELECTRIC HEATER - A pipe in pipe electric heater assembly comprising a work string comprising an inner pipe and an outer pipe and a heater element, wherein the heater element is provided with power supplied by the inner pipe and the outer pipe acting at least as conductors and associated methods. | 11-06-2014 |
| 20140360778 | DOWNHOLE DEEP TUNNELING TOOL AND METHOD USING HIGH POWER LASER BEAM - A downhole laser tool for penetrating a hydrocarbon bearing formation includes a laser surface unit to generate a high power laser beam, a fiber optic cable to conduct the high power laser beam from the laser surface unit to a rotational system that has a rotational head which includes a focusing system and a downhole laser tool head, the focusing system includes a beam manipulator, a focused lens, and a collimator, the downhole laser tool head includes a first cover lens to protect the focusing system, a laser muzzle to discharge the collimated laser beam from the downhole laser tool head into the hydrocarbon bearing formation, a fluid knife to sweep the first cover lens, a purging nozzle to remove dust from the path of the collimated laser beam, a vacuum nozzle to collect dust and vapor from the path of the collimated laser beam. | 12-11-2014 |
| 20140367165 | THERMAL COMPONENT TEMPERATURE MANAGEMENT SYSTEM AND METHOD - A downhole tool includes a temperature sensitive component. The temperature of the temperature sensitive component is at least partially controlled by a temperature management system thermally coupled to the temperature sensitive component. A metal hydride may be selectively thermally coupled to a cold plate that is thermally coupled to the temperature sensitive component. | 12-18-2014 |
| 20140367166 | THERMAL COMPONENT TEMPERATURE MANAGEMENT SYSTEM AND METHOD - A downhole tool includes a temperature sensitive component. The temperature of the temperature sensitive component is at least partially controlled by a temperature management system thermally coupled to the temperature sensitive component. The temperature management system may include a cold plate thermally coupled to the temperature sensitive component, a hot plate thermally coupled to the cold plate, and a thermo-electrical converter system thermally coupled to the hot plate and to the body of the downhole tool, wherein the thermo-electrical converter system comprises two membrane electrode assemblies. | 12-18-2014 |
| 20140367167 | THERMAL COMPONENT TEMPERATURE MANAGEMENT SYSTEM AND METHOD - A downhole tool includes a temperature sensitive component. The temperature of the temperature sensitive component is at least partially controlled by a temperature management system thermally coupled to the temperature sensitive component. The temperature management system may include a cooling mixture chamber thermally coupled to the temperature sensitive component, wherein first and second components of a cooling mixture cause an endothermic reaction when mixed together within the cooling mixture chamber. | 12-18-2014 |
| 20140374156 | METHODS OF REDUCING STRESS IN DOWNHOLE TOOLS - A method for reducing stress in a downhole tool. The method includes varying a temperature of the downhole tool by at least 5° C. Vibrational energy may be transferred to the downhole tool with a vibration device coupled to the downhole tool. The vibrational energy may cause the downhole tool to move with a frequency from about 10 Hz to about 5 kHz. | 12-25-2014 |
| 20150330165 | DRILLING MUD COOLING SYSTEM - A system includes a drilling mud cooling apparatus that is adapted to receive a flow of a mixture of drilling materials from a drilled wellbore during a drilling operation, and to cool the mixture from a first temperature to a second temperature, wherein the cooled mixture of drilling materials includes cooled drilling mud and drill cuttings. The disclosed system further includes a shale shaker apparatus that is adapted to receive a flow of the cooled mixture of drilling materials from the drilling mud cooling apparatus and to separate at least a portion of the drill cuttings from the cooled drilling mud. | 11-19-2015 |
| 20160010407 | CLOSED LOOP DRILLING MUD COOLING SYSTEM FOR LAND-BASED DRILLING OPERATIONS | 01-14-2016 |
| 20160168916 | APPARATUS FOR DRILLING DEEPER AND WIDER WELL BORE WITH CASING | 06-16-2016 |
