| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 166252100 | Including production of earth fluid by driving fluid | 34 |
| 20080236818 | Method and Apparatus for Controlling the Manufacture of Well Treatment Fluid - A method and apparatus for controlling the production of well treatment fluid is disclosed. The apparatus includes: a sand system, a water system, a pumping system, a blender tub, and a virtual rate control system. The method includes determining an output rate from a sand system; sensing an output rate from a water system; sensing an output rate from a pumping system; sensing the height within a blender tub of a mixture of sand from the sand system and water from the water system; providing a virtual rate control system; and producing a drive signal to the pumping system using the virtual rate control system using a desired rate of well treatment fluid to be delivered to a well, the output rate of the sand system, the output rate of the water system, and the output rate of the pumping system. | 10-02-2008 |
| 20090211755 | SYSTEM AND METHOD FOR INJECTION INTO A WELL ZONE - A technique facilitates a water flood, e.g. dump flood, operation. A standard electric submersible pumping system is deployed in a wellbore to draw water from an aquifer or water source zone along the wellbore. A shroud and a crossover port are used in combination with the submersible pumping system to redirect pumped water downwardly along an isolated flow path. The downward flow of pumped water is directed along the wellbore and injected into a desired, injection zone to facilitate recovery of oil or to perform other types of water flood operations. | 08-27-2009 |
| 20090255670 | Method of Monitoring Underground Diffusion of Carbon Dioxide - An object is to provide a monitoring method for monitoring underground diffusion of carbon dioxide, which is used when injecting carbon dioxide into an underground coal seam to cause it to be adsorbed to the coal seam, and collecting hydrocarbon gases that have been displaced by the carbon dioxide and released from the coal seam, and with which the behavior of carbon dioxide injected into the ground can be continuously measured over a long period of time at a low cost, using a relatively simple device. | 10-15-2009 |
| 20090272531 | HYDROCARBON RECOVERY TESTING METHOD - A method of testing the response of a subterranean formation to a formation treatment is described including the injection of a treatment fluid and the production of formation fluids from two separate boreholes or two boreholes from a single well such that the treatment fluid sweeps the formation between the two boreholes, and the use of downhole monitoring devices to determine a volume swept by the treatment fluid. | 11-05-2009 |
| 20090283263 | SYSTEMS, METHODS AND APPARATUSES FOR MONITORING AND RECOVERY OF PETROLEUM FROM EARTH FORMATIONS - A system for monitoring a location of a borehole for production of petroleum from an earth formation is provided. The system includes: an assembly including at least one of an injection conduit for injecting a thermal source into the formation and a production conduit for recovering material including the petroleum from the formation; a guide conduit attached to at least a portion of the at least one of the injection conduit and the production conduit, the guide conduit extending in a direction at least substantially parallel to the at least one of the injection conduit and the production conduit; and a detection source conduit insertable through the guide conduit and configured to dispose therein a detection source for detecting a location of the assembly in the formation. A method of monitoring a location of a borehole for production of petroleum from an earth formation is also provided. | 11-19-2009 |
| 20090283264 | SYSTEMS, METHODS AND APPARATUSES FOR MONITORING AND RECOVERY OF PETROLEUM FROM EARTH FORMATIONS - A system for production of petroleum from an earth formation is provided. The system includes: at least one injection borehole for injecting a thermal source into the formation; at least one production borehole for recovering material including the petroleum from the formation; and at least one drainage borehole intersecting a portion of the at least one production borehole. Methods of recovering petroleum from an earth formation and creating a petroleum production system are also provided. | 11-19-2009 |
| 20100032156 | METHOD FOR TESTING AN ENGINEERED GEOTHERMAL SYSTEM USING ONE STIMULATED WELL - Systems and methods for testing a subterranean formation are herein disclosed. According to one embodiment, a method includes stimulating a substantially non-permeable medium within a subterranean formation to create a fractured reservoir. At least one stimulation parameter is measured during stimulation. A well drilled in the subterranean formation is shut-in. A fluid is produced from the subterranean well and at least one production parameter is measured during production. The stimulation and production parameters are used in a numerical reservoir fluid flow model to identify parameters of the fractured reservoir. | 02-11-2010 |
| 20100116491 | System and method for producing a well using a gas - Systems and methods for producing a well using a gas are disclosed herein. A compressed lift gas can be provided to a well to obtain a production stream. The production stream can be separated to obtain the product and a recycle gas stream. The recycle gas stream can be immediately recompressed for use as lift gas, or separated to form a lift gas stream, and a power stream containing natural gasses from the well. The lift gas stream is recycled for use as lift gas, while the power stream can be transported and/or collected for sale, recycled for use as lift gas, or consumed as power for the compressor, based on measurements obtained throughout the system, coupled with practical and economic variables. By supplementing or replacing generated lift gas and/or an external power source with natural gas from the well, the present systems and methods can become self-contained after start-up. | 05-13-2010 |
| 20100181066 | THERMAL PROCESSES FOR SUBSURFACE FORMATIONS - A process may include providing heat from one or more heaters to at least a portion of a subsurface formation. Heat may transfer from one or more heaters to a part of a formation. In some embodiments, heat from the one or more heat sources may pyrolyze at least some hydrocarbons in a part of a subsurface formation. Hydrocarbons and/or other products may be produced from a subsurface formation. Certain embodiments describe apparatus, methods, and/or processes used in treating a subsurface or hydrocarbon containing formation. | 07-22-2010 |
| 20110056680 | SYSTEMS, METHODS AND APPARATUSES FOR MONITORING AND RECOVERY OF PETROLEUM FROM EARTH FORMATIONS - A system for monitoring a location of a borehole for production of petroleum from an earth formation is provided. The system includes: an assembly including at least one of an injection conduit for injecting a thermal source into the formation and a production conduit for recovering material including the petroleum from the formation; a guide conduit attached to at least a portion of the at least one of the injection conduit and the production conduit, the guide conduit extending in a direction at least substantially parallel to the at least one of the injection conduit and the production conduit; and a detection source conduit insertable through the guide conduit and configured to dispose therein a detection source for detecting a location of the assembly in the formation. A method of monitoring a location of a borehole for production of petroleum from an earth formation is also provided. | 03-10-2011 |
| 20130153215 | Recovery From A Hydrocarbon Reservoir - Embodiments described herein provide systems and methods for improving production of hydrocarbon resources. A method for improving recovery from a subsurface hydrocarbon reservoir includes drilling a well comprising a horizontal segment through a reservoir interval and installing a pipe string in the horizontal well segment, wherein the pipe string comprises a plurality of screen assemblies. Each of the plurality of screen assemblies is located and a hole is drilled in the pipe string at a portion of the plurality of screen assemblies. Each hole is drilled at a desired orientation to a radial axis of the drill string. | 06-20-2013 |
| 20130277049 | PREDICTING STEAM ASSISTED GRAVITY DRAINAGE STEAM CHAMBER FRONT VELOCITY AND LOCATION - The invention relates to the development of an analytical model to predict the velocity of the continuously expanding front of the steam chamber in a steam assisted gravity drainage (SAGD) hydrocarbon production system. The developed analytical model has advantages over reservoir simulation tool in that it is very fast and can be easily calibrated with field observation well data before making good prediction. One field study shows that the developed model can achieve excellent prediction for a field SAGD performance. A better understanding of the size of the steam chamber and the velocity of the front should provide better time, cost and energy efficiency for the production of high viscosity hydrocarbons. | 10-24-2013 |
| 20140246193 | ELECTRICAL HEATING METHOD FOR A HYDROCARBON FORMATION, AND IMPROVED THERMAL RECOVERY METHOD USING ELECTRICAL PRE-HEATING METHOD - A thermal recovery method employing an electrical pre-heating method to condition the hydrocarbon-bearing formation as a means of improving recovery when steam injection is later applied. In addition, a method of comparing the applied electrical flux and resulting temperature profile to determine the heat transfer properties of each of a plurality of reservoir regions along the length of a horizontal well is disclosed. Advantageously, the heat flux supplied to each of the regions may be varied relative to each other region to compensate for different thermal transfer properties which may exist in the formation within each of the regions. Such controlled variation in thermal energy transfer, compensating for variances in fluid mobility and thermal properties in the reservoir allows for a more even steam chamber development and therefore optimized oil recovery. | 09-04-2014 |
| 20150114633 | MONITORING OF STEAM CHAMBER GROWTH - A methodology and system promote hydrocarbon production from a reservoir using steam assisted gravity drainage. The technique comprises deploying sensors in a subsurface environment containing the reservoir. The sensors are used to obtain data on properties related to a steam assisted gravity drainage region of the reservoir. Based on the data collected from the sensors, the amount of steam injected into areas of the reservoir may be adjusted to facilitate, e.g., optimize, production of hydrocarbons. | 04-30-2015 |
| 20150308255 | Coiled Tubing Downhole Tool - A method and system for determining information about a wellbore with coiled tubing. A downhole device may be positioned within coiled tubing and run down the wellbore to determine diagnostic information about a location with the wellbore. The downhole device may store diagnostic information in a storage device that may be analyzed when the device is returned to the surface. A downhole device may be connected to the end of a string of coiled tubing that includes a diagnostic device and memory sealed in a chamber. A flow path past the chamber is in communication with the coiled tubing string permitting the flow of fluid past the chamber. A downhole device including a diagnostic device may be connected to a recess in an exterior of a coiled tubing string. | 10-29-2015 |
| 20160186539 | METHOD OF BALANCING RESOURCE RECOVERY FROM A RESOURCE BEARING FORMATION - A method of recovering resources from a resource bearing formation includes selectively injecting a fluid into the resource bearing formation through one or more injector wells, extracting a resource from the resource bearing formation through one or more production wells, receiving at a sweep pattern controller, an input from each of the one or more production wells indicating an amount of the resource extracted over a period of time, determining, in the sweep pattern controller, an adjusted sweep pattern for the formation that substantially equalizes production from each of the one or more production wells, and signaling each of the one or more injector wells, from the sweep pattern controller, to selectively inject the fluid to establish the adjusted sweep pattern in the formation. | 06-30-2016 |
| 20160186545 | LOW SALINITY WATER INJECTION ALTERNATING WITH IMMISCIBLE GAS INJECTION TO INCREASE OIL RECOVERY - A method for recovering oil from an earth reservoir includes injecting low salinity water into the reservoir using a low salinity water injection system, the low salinity water having a salinity that is less than connate water of the reservoir or normal water that was injected in a previous water-flooding process, the normal water having a salinity that is within plus or minus ten percent of the reservoir connate water. The method further includes injecting an immiscible gas into the reservoir using an immiscible gas injection system following the injection of the low salinity water, the immiscible gas being immiscible to the low salinity water and the oil in order to recover the oil. | 06-30-2016 |
| 166252300 | Salinity or acidity | 1 |
| 20090194276 | DETERMINATION OF AN ACTUAL OPTIMUM SALINITY AND AN ACTUAL OPTIMUM TYPE OF MICROEMULSION FOR SURFACTANT/POLYMER FLOODING - Systems and methods for the determination of an optimum salinity type and an optimum salinity of a surfactant microemulsion system are shown. Optimum salinity type and optimum salinity in surfactant/polymer flooding is determined, according to embodiments, by core-flood experiments so that a variety of multiphase flow parameters such as relative permeability and phase trapping that affects oil recovery factor, influences the determination of the optimum salinity type and optimum salinity. The optimum salinity determined from this approach preferably corresponds to the highest oil recovery factor. | 08-06-2009 |
| 166252500 | Permeability or viscosity | 7 |
| 20090250212 | METHOD AND APPARATUS FOR BALANCED PRESSURE SAMPLING - A method of sampling fluid from a rock formation penetrated by a borehole includes positioning a downhole tool having a flow line in the borehole, establishing an inlet port through which fluid passes from a first point in the formation into the flow line, establishing an outlet port through which fluid passes from the flow line into a second point in the formation, and passing fluid between the formation and the flow line through the inlet and outlet ports. | 10-08-2009 |
| 20100263862 | FORMATION FLUID EVALUATION - In-situ formation fluid evaluation methods and apparatus configured to measure a first resonance frequency of a first fluid using a first densimeter downhole, wherein a first density of the first fluid is known; measure a second resonance frequency of a second fluid using a second densimeter downhole, wherein the second fluid is a formation fluid received by the second densimeter downhole, and wherein a second density of the second fluid is unknown; and determine the second density of the second fluid using the first and second resonance frequencies and the known first density. | 10-21-2010 |
| 20110042078 | VISCOSITY REDUCER FOR WATER-BASED MUDS - A method of reducing the viscosity of a water-based drilling fluid without requiring dilution. The method of reducing the viscosity of a water-based drilling fluid, includes: providing a water-based drilling fluid containing a peroxide degradable polymer and a weighting agent, adding a viscosity reducing additive containing an inorganic peroxide to the water-based drilling fluid while maintaining the pH of the water-based drilling fluid at a pH greater than about 8, circulating the water-based drilling fluid having a pH greater than about 8 through a wellbore, and heating the circulating water-based drilling fluid to a temperature of at least about 150° F. so as to activate the inorganic peroxide to degrade the peroxide degradable polymer. | 02-24-2011 |
| 20130333882 | FLOWPATH IDENTIFICATION AND CHARACTERIZATION - Systems and methods are described for analyzing produced fluids in a mature water flood (or EOR scheme) and determining whether the introduction of an EOR agent, such as a chemical or a gas additive, or some other alteration in treatment, is enhancing the recovery of hydrocarbon from parts of the reservoir otherwise untouched by injected fluids. The monitoring can be used to identify subtle changes in the produced fluid caused by their flow through different pore structures. In a carbonate formation for example, ions and salts from the rock fabric are dissolved into the reservoir fluids, whether they are water or oil. These can be detected by various fluid analysis and particularly water analysis methods. The changes in reservoir fluid paths associated with the injection of an EOR agent are detected in the observation well. | 12-19-2013 |
| 20140216733 | METHOD AND AN ARRANGEMENT FOR CONTROLLING FLUID FLOW INTO A PRODUCTION PIPE - A method of controlling fluid flow into a heavy oil production pipe includes reducing inflow into the production pipe locally from hot spots using inflow control devices including a movable body provided within a housing, the movable body being arranged to adjust the flow of fluid through the inflow control devices autonomously by exploiting the Bernoulli principle; increasing inflow into the production pipe remote from the hot spots using the inflow control devices to increase inflow locally; and increasing draw down in the production pipe by using an injector to inject a gaseous medium at or downstream of the inflow control devices. | 08-07-2014 |
| 20140290942 | METHOD FOR INJECTING LOW SALINITY WATER - Methods, apparatuses and computer readable instructions for determining the effectiveness of, and for performing, a low salinity waterflood. An ion diffusion distance value is determined based on the rate of diffusion of ions within the rock of a reservoir and the residency time of floodwater within the reservoir. The thickness of the layers of the reservoir are compared to this ion diffusion value to determine the effectiveness of performing a low salinity waterflood and also to enable the effective control of a waterflood and to assist in the determination of locations of wells. | 10-02-2014 |
| 20140332207 | Methods To Characterize Underground Formation - A method for determining a characteristic of an underground formation with a fluid is described. The method includes providing a sample material of the underground formation; measuring the permeability and the porosity of the sample material; performing a drainage test on the sample material using the fluid; estimating the threshold pressure of the sample material from the drainage test, the permeability and the porosity measurements; and determining the receding contact angle of the fluid on the sample material from the threshold pressure. The sample material can be disaggregated material. | 11-13-2014 |
| 166252600 | And tracing material | 9 |
| 20120090835 | DOWNHOLE MATERIAL-DELIVERY SYSTEM FOR SUBTERRANEAN WELLS - Methods for releasing tracers into a well for diagnostic studies during subterranean-well operations comprise filling one or more hollow bodies with substances The system that comprise a cementing-plug-launching system, a drill string, casing, coiled tubing, wireline or combinations thereof. After the system is lowered into the well, the tracer substance may be remotely and safely released into the well. | 04-19-2012 |
| 20120267096 | METHOD OF TESTING THE OPERATION OF A PRODUCING PIL WELL OPERATED USING THE FORMATION HYDROFRACTURING PROCESS - This invention relates to oil production, more specifically, oil production using the formation hydrofracturing process, and can be used for monitoring the operation of a producing oil well. | 10-25-2012 |
| 20120318503 | CARBON-BASED FLUORESCENT TRACERS AS OIL RESERVOIR NANO-AGENTS - Carbon-based fluorescent nano-agent tracers for analysis of oil reservoirs are provided. The carbon-based fluorescent nano-agents being inexpensive means of analyzing, among other properties, the porosity of a formation. The nanoagents are suitable for injection into a petroleum reservoir and can be subsequently recovered for determinations of flow rates and retention times. | 12-20-2012 |
| 20120325464 | Early verification of a production well - A method for a rapid verification of satisfactory clean-up at the end of the completion process when starting production of petroleum fluids while the completion rig is still at the well. The method includes marking one or more of separated zones along the well by one or more distinct tracers, before starting production. The tracers are added along with the completion or the clean-up fluid, and the tracers are arranged to be released by relative high concentrations from each zone to an inflowing fluid of oil or gas. | 12-27-2012 |
| 20130341014 | METHOD OF PLACING BALL SEALERS FOR FLUID DIVERSION - A method for placing ball sealers within a well formed within a subterranean formation for sealing holes in a casing of the well is carried out by performing at least one of two operations. The first operation involves providing a tag with at least one ball sealer or a carrier fluid containing the at least one ball sealer to facilitate monitoring of the location of the ball sealer. A tag monitoring device is provided within the well for monitoring the location of the tag. The ball sealer and carrier fluid with the tag are introduced downhole into the well. Information from the monitor device regarding the location of the tag is communicated to a remote monitoring location to the thereby provide an indication of the location of the tag within the well to a surface location. In the second operation a container is provided within the well at a known location downhole within the well. The container contains at least one ball sealer. The ball sealer or sealers are released from the container within the well at the known location in response to an instruction initiated from a surface location. | 12-26-2013 |
| 20140174730 | METHOD OF TRACING FLOW OF HYDROCARBON FROM A SUBTERRANEAN RESERVOIR - A method of tracing flow of hydrocarbon from a subterranean reservoir including forming a dispersion, injecting a hydraulic fracturing fluid containing the dispersion down a well penetrating a hydrocarbon reservoir, thereafter collecting a sample of hydrocarbon fluid flowing from the reservoir, and analysing the sample to determine whether the tracer compound is present in the sample. The dispersion includes a discontinuous condensed phase having a hydrocarbon-soluble tracer compound and a continuous phase which includes an aqueous liquid. | 06-26-2014 |
| 20150376493 | Hydrophobic Paramagnetic Nanoparticles as Intelligent Crude Oil Tracers - Hydrophobic paramagnetic nanoparticles can be injected with the enhanced oil recovery injection water by incorporating them inside of surfactant micelles to serve as an oil tracer. A variety of paramagnetic nanoparticles that show different susceptibility and magnetization responses to applied magnetic oscillation can be injected at different injectors, so that the origin of the oil from the different enhanced oil recovery patterns could be quantitatively identified. The concentrations of the nanoparticles in the produced crude oil and brine can be easily and instantly measured individually, employing the magnetic susceptibility meter without contacting the fluids directly. | 12-31-2015 |
| 20150376997 | USE OF LONG CHAIN ALCOHOLS, KETONES AND ORGANIC ACIDS AS TRACERS - Non-halogenated molecules having 10-30 carbons including aliphatic, aromatic, saturated, unsaturated (and combinations thereof) alcohols, ketones, organic acids, organic acid salts, sulfonated derivatives, and/or other derivatives are used as tracers to measure oil and/or water fluid returns, such as from a hydraulic fracturing job. The non-halogenated molecules may be combined with substrates and introduced into a subterranean location, desorbed and recovered from the subterranean location with a fluid, reacted with a reagent (e.g. pentafluoro benzyl chloride) to give a derivatized tracer. Alternatively, the tracer molecule release can be delayed by use of an emulsion or a coating that allows slower diffusion of the tracer into the fluid. The presence of the derivatized tracer is then detected in the recovered fluid. A different non-halogenated tracer may be used for each hydraulic fracturing stage, e.g. to determine from which fracturing stage water is produced and from which oil is produced. | 12-31-2015 |
| 20150377021 | Reservoir Effluent Auto Sampler & Detection System for Tracers - Methods and devices for sampling tracers may include providing tracers into a wellbore, taking samples of the fluids exiting the wellbore, and quantifying an amount of tracer returning from the well, wherein the samples are automatically taken based on a predetermined profile. | 12-31-2015 |
