20 results about "Oil sands" patented technology

Non-hydraulically reactive blended particulate compositions for use in making low carbon blended cement or low carbon concrete include a pozzolanic component having a first D90 and a mineral filler component having a second D90 greater than the first D90 dry blended without intergrinding, wherein the composition is free of hydraulic cement. The pozzolanic component can have a D90 less about 45 μm and the mineral filler can have a D90 greater than about 45 μm. The pozzolanic material can be fly ash, bottom ash, metallurgical slag, silica fume, metakaolin, volcanic ash, natural pozzolan, calcined shale, calcined clay, and / or ground glass. The mineral filler component can be aggregate fines, quarry fines, limestone powder, granite fines, stone dust, rock dust, marble dust, mine tailings, pulverized bottom ash, pulverized metallurgical slag, ground recycled concrete, pulverized shale from shale oil extraction, or pulverized sand from tar sand extraction.

The present invention relates to in-situ bitumen recovery from an oil sand reservoir. Steam at 200℃ to 280℃ is injected into the reservoir with select alkanolamines that (1) have a vapor pressure (Pv) of at least 0.001 mm Hg at 20℃, and (2) have a pKa value of at least 9.0, and (3) have an HLB-Factor of at least 0.5. The steam / alkanolamine blend contains less than 25 parts-per-hundred of capped glycol ethers, based on the weight of alkanolamines.

This utility model discloses a sand setter for oil extraction processes, relating to the field of oil extraction technology. It includes a support frame, a sand settling box fixedly mounted at the top of the support frame, a controller fixedly mounted on one side of the front end of the sand settling box, and an oil inlet pipe fixedly mounted on the upper left end of the sand settling box. In this utility model, oil enters the sand settling box through the oil inlet pipe. A rotating rod drives agitator blades to rotate, facilitating the sedimentation of sand particles in the oil. A rotating transmission rod drives a cam to rotate, allowing the cam's protrusion to contact the lower end of a filter screen and push the screen upwards. This stretches the springs on both sides of the filter screen. After the cam protrusion separates from the filter screen, the springs cause the filter screen to vibrate up and down, accelerating the separation of oil and sand particles and preventing sand particles from clogging the filter screen and affecting the efficiency of oil sand settling. The sand particles settle below the filter screen and can smoothly sink to the bottom of the sand settling box, then fall into the sand collection box through the bottom chamber.

The present application relates to the technical field of bitumen-containing sand dredging engineering operation control, and proposes a bitumen-containing sand dredging operation safety boundary determination method based on disturbance threshold. The method is based on the disintegration mechanism of the oil-sand cementing structure of bitumen-containing sand under construction disturbance, obtains construction disturbance parameters such as material taking speed, unit time material taking amount, material compaction degree and material shear path length, constructs equivalent disturbance intensity representing the equivalent damage degree of the oil-sand cementing structure, and compares it with the preset disintegration threshold corresponding to the critical disturbance level of the transition of the cementing structure from the continuous coating state to the generation of migratory free oil or oil droplets, so as to determine whether the dredging operation crosses the irreversible disintegration safety boundary. The method does not rely on real-time detection of the water body or the oil phase concentration of the material, directly describes the structure damage degree according to the construction disturbance state, and realizes the pre-determination and process constraint of the safety boundary of the bitumen-containing sand dredging operation.

The application discloses a CO2 switch type oil sand dissociation agent and a preparation method and application thereof, and belongs to the technical field of oil sand dissociation and recovery. The dissociation agent comprises a small molecule amine, an anionic surfactant and a diluent. Through molecular design and optimized molar ratio of the specific amine-surfactant combination, the application realizes efficient, stable and controllable interfacial tension switching, realizes stronger and more sensitive CO2 switch response, greatly improves process adaptability, and exhibits excellent stability and compatibility in a complex oil sand environment (high salt, multivalent ions and asphalt components). In addition, the application also constructs a complete solution scheme of deep synergy of "molecular design-process triggering", and has a wide process window and strong controllability.

The application discloses a hydrogen production and cement admixture co-production process structure of high-oil and high-calcium oil sand, and belongs to the technical field of energy and chemical industry. The process structure is composed of an oil gas production system of oil sand and heat carrier mixing pyrolysis, a rich hydrogen gas system of oil gas and steam reforming and carbon dioxide absorption, a hydrogen production system of rich hydrogen gas heat recovery, dust removal and purification, a calcium carbonate in oil sand temperature rising decomposition and calcium oxide absorption carbon dioxide circulation system, a flue gas energy recovery and dust removal system and a cement admixture collection system. The oil gas produced by oil sand pyrolysis directly enters an oil gas reforming reactor to generate a rich hydrogen gas by reforming reaction and calcium oxide absorption carbon dioxide reaction, and hydrogen is obtained by further purification. The calcium carbonate in oil sand and calcium oxide conversion circulation promote hydrogen generation, and are output as cement admixture products. The application realizes hydrogen production and cement admixture co-production of oil sand through multi-system coupling.

This invention discloses an adaptive upscaling method for multi-field coupled fracture evolution in thermal flow solidification, relating to the fields of unconventional oil and gas reservoir development and reservoir numerical simulation. The method includes: establishing fine-scale and coarse-scale models; establishing a simplified model and running it to obtain the temperature field; running the full physical coarse-scale model and correcting the predicted fine-scale temperature; iteratively calculating the fine-scale reaction rate and upscaling; adaptive dynamic correction of the reaction frequency factor of the coarse-scale model; coarse-scale multi-field coupled solution and thermally induced fracture identification; thermally induced fracture merging and evolution and updating of multi-field physical parameters; time stepping and simulation termination. The beneficial effects of this invention are that, while ensuring the accuracy of fine-scale calculations, it can significantly accelerate the simulation of multi-field coupled fracture dynamic evolution, and can be widely applied to field-scale numerical simulations of various underground energy engineering projects with solid-phase reactions as the main controlling mechanism, such as in-situ conversion of oil shale, underground coal gasification, and in-situ upgrading of oil sands.

Disclosed is an e-methanol SAGD plant system applicable to unconventional oil production areas capable of producing e-methanol using CO2 and carbon-reduced green hydrogen generated by a plant configured to recover bitumen using only a mixture of eco-friendly hydrogen generated by a water electrolysis apparatus and natural gas and steam instead of expanding solvent SAGD (ES-SAGD), which is a recovery method using steam, natural gas, and an additive (a solvent) used to reduce the steam-to-oil ratio (SOR), which impacts environmental pollution, when recovering an oil component from subterranean oil sands based on the widely adopted steam-assisted gravity drainage (SAGD) technology, among methods of recovering bitumen from oil sands.

An inclined and inverted pyrolysis device comprises a cylinder device, a heating furnace, a driving device, a feeding mechanism and a discharging cover. The cylinder device is inclined, with an open low end and a closed high end. The feeding mechanism and the discharging cover are arranged at the low end of the cylinder device. The driving device drives the cylinder device to rotate in two directions. When the cylinder device rotates forward, the material is uniformly distributed along the axial direction and undergoes pyrolysis reaction. When the cylinder device rotates reversely, the material is quickly discharged from the low end into the discharging cover. The pyrolysis device can utilize 100% of raw materials. The residence time of the material in the cylinder is flexible and adjustable. The material filling rate is high. The processing capacity is large. The sealing performance is good. The pyrolysis efficiency is high. The device is easy to install and transport. It can be widely used in the chemical industry for pyrolysis of low-rank coal, oil shale, oil sand and other materials. It can be used in the resource recycling industry for the regeneration of activated carbon with surface-attached organic matter and the regeneration of catalysts. It can also be used in the pyrolysis treatment industry for organic solid waste, oil-containing sludge and other solid waste containing organic matter.

This invention discloses a steam-enhanced thermal reaction device and method for oil production, relating to the field of petrochemical technology. The invention involves a chemical reaction within a reactor's reaction unit, with the heat generated used to heat steam in a steam channel. By organically combining multiple chemical reactors with a steam system, the synergistic effect of the exothermic chemical reaction and the heat generated by the steam significantly improves reservoir heating efficiency. This device is particularly suitable for the extraction of heavy oil, extra-heavy oil, and oil sands, offering advantages such as high reaction efficiency, good thermal energy utilization, and flexible operation. Practical application has shown that this invention utilizes a multi-chemical reactor within the wellbore, combined with a steam-enhanced thermal reaction device, for catalytically heated oil sands extraction. This device and method have a wide range of applications, suitable for deep, complex, and low-grade oil reservoirs.

The application discloses a device for preparing coated asphalt from oil sand asphalt and a process thereof, and belongs to the field of asphalt processing. The device comprises a processing box, four grounding feet are arranged at the bottom end of the processing box, an arch bridge is arranged at the top end of the processing box, a counter stirring mechanism is arranged below the arch bridge, a detachable plugging disc is arranged at the bottom end of the processing box, a heating mechanism is arranged on the plugging disc, and a discharge pump is arranged on the side wall of the processing box. First, the oil sand material is sent into the processing box, then hot vegetable oil is connected to the butt joint pipe, the heat of the vegetable oil is transferred to the heating column, the heat of the heating column is transferred to the oil sand material, and then the temperature of the oil sand approaches 200 DEG C, the asphalt material in the oil sand is liquefied, at the same time, the sand particles and the soil are not melted, the sand particles and the soil are larger in density than the asphalt and are deposited at the bottom end of the processing box, and the heating mode is relatively high in safety.

The present invention relates to in-situ bitumen recovery from an oil sands reservoir. Steam is injected into the reservoir with a mixture of two different alkanolamines and with less than 25 pphw of capped glycol ethers, based on the combined weights of alkanolamines and capped glycol ethers.

The utility model provides a kind of special filter plate of easy disassembly oil sand, it is related to oil sand separation technical field, including: upper end cover, the lower end cover is provided in the upper end cover bottom;Filtering assembly being arranged between the upper end cover and lower end cover, the filtering assembly includes: stainless steel net, fine hole net and cotton fiber filter cloth;Locking assembly being arranged in the upper end cover both sides and inside, the locking assembly includes: lock hook, spring, fixed plate, fixed base, lock catch and ring buckle.The setting of filtering assembly separates different size solid impurities in different filter screen, so that filter plate is not easy to block, improve solid-liquid separation efficiency, and it is convenient to clean stainless steel net and fine hole net, replace cotton fiber filter cloth;Through the setting of locking assembly and first handle and second handle, only need to pull the handle of lock catch, and the disassembly of filter plate can be realized.

We provide an e-methanol SAGD plant applicable to non-traditional oil production areas. [Solution] The e-methanol SAGD plant system comprises: a first water treatment module that removes impurities from the supply water and produces purified water; a boiler module that heats the purified water and produces steam; a hydrogen generation module that generates hydrogen by decomposing the purified water using electricity; an injection well that supplies the steam to the inside of the oil sands mining area; a hydrogen supply unit that supplies a portion of the hydrogen produced by the hydrogen generation module to the inside of the oil sands mining area; a producer well in which bitumen and gas are recovered from the lower part of the oil sands mining area; a gas collection unit that receives natural gas from the outside and collects CO2 from the combustion of excess gas; and a methanol production unit that produces e-methanol using the hydrogen produced by the hydrogen generation module and the CO2 from the gas collection unit.

A thermal recovery simulation experiment device and method for oil sands and extra-heavy oil reservoirs, relating to the technical field of oil sands and extra-heavy oil development. The experiment device comprises: a three-dimensional geological simulation model (1), which comprises a model housing (11) having a cavity, wherein the model housing is configured to be filled with sand, and the model housing has a vacuum pump interface (12) and a recovery interface (13); and at least two vertical simulation wells (14), one horizontal steam-injection simulation well (15) and one horizontal production simulation well (16) that can be arranged in the housing, wherein a first on-off valve (17) and a first connector (18) located outside the model housing are connected in sequence to the end of each vertical simulation well, a second on-off valve (19) and a second connector (110) located outside the model housing are connected in sequence to the end of the horizontal steam-injection simulation well, etc. For oil sands and extra-heavy oil reservoirs, the present application can visually demonstrate influences and development patterns under different thermal recovery modes at high temperature and high pressure.

The present application provides a kind of outside hot type rotary kiln multi-burner oil sand dry distillation system, including outside hot type rotary kiln, deslagging machine, two-stage condensing tower, primary condensing tower, spray tower and sedimentation tank;Spiral feeder is connected at the feed inlet of outside hot type rotary kiln, and outside hot type rotary kiln is provided with natural gas burner, and the hot air generated by natural gas burner combustion is preheated by heat exchanger, and the oil gas steamed out of outside hot type rotary kiln is sprayed into spray tower with water, part of which enters sedimentation tank for sedimentation, and the other part of oil gas mixture enters primary condensing tower and two-stage condensing tower by induced draft fan, and the oil-water mixture after condensation enters oil-water separator, and the recovered oil is stored, and the condensate is externally sent after reaching standard by three-stage oil separation pretreatment;The uncondensed non-condensable gas steamed out of outside hot type rotary kiln is sent into outside hot type rotary kiln by return air fan and is burned, to form energy cycle.The present application can handle viscous oil sand, oil sand containing corrosive gas, expand the feed range, and improve the equipment utilization.

The application belongs to the field of oil field chemistry, and relates to a wetting dispersant, a water-based drilling fluid containing the same and a preparation method. The preparation method of the wetting dispersant comprises the following steps: (1) mixing an ester compound and a first emulsifier to prepare a first solution; (2) mixing deionized water and a second emulsifier to prepare a second solution; (3) under stirring, dropping the first solution into the second solution to perform emulsification, so as to obtain an emulsion; (4) dissolving an aromatic compound and / or an amide compound and an initiator in water, and performing heating reaction to obtain a prepolymer; (5) dropping the emulsion into the prepolymer, and continuing to perform heating reaction to obtain a polymer; and (6) adding a polymerization inhibitor to terminate the reaction, and performing precipitation, centrifugation and drying to obtain a solid powder. The wetting dispersant has significant wetting reversal and high-temperature dispersion stability, can effectively reduce the adhesion of oil sand bitumen to a drill pipe, disperse oil sand particles, reduce well bottom deposition, and improve the performance of a drilling fluid.

The application discloses a ground driving screw pump sand rotating device and method, an oil pumping rod, a screw pump and a sand rotator are sequentially connected at the lower end of a driving head, meanwhile, a liquid discharge hole and a sand discharge hole are formed in the sand rotator, the screw pump drives the sand rotator to rotate rapidly to generate centrifugal force to separate oil, sand and gas, sand enters a lower pipe column through the sand discharge hole, and oil enters the screw pump through the liquid discharge hole, so that the oil and sand are effectively separated, the device does not rely on the centrifugal force of liquid self-rotation, but can separate oil and sand through the separation force generated by the sand rotator, is suitable for application in oil extraction with various scales of displacement, direct contact between sand and the screw pump is avoided through the sand rotator, damage of sand to the screw pump is reduced, the device not only has the effect of active sand prevention, but also can prolong the service life of the screw pump, improve oil extraction efficiency, reduce cost, and solve the problems of poor oil and sand separation effect, low service life of the screw pump and high oil extraction cost in the prior art.

The application provides a treatment method of oil sand dry distillation industrial wastewater. Cr The application takes "acid neutralization-organic pollutant degradation-deep adsorption" as the core, and a treatment system thereof comprises a regulating and neutralizing unit, a coagulation air flotation unit, a biochemical treatment unit, a deep adsorption unit and a disinfection and discharge unit connected in sequence; compared with a traditional oil field water treatment process, the application focuses on solving the problems of acid neutralization and organic pollutant removal, rather than high mineralization treatment, and has the advantages of strong pertinence, high treatment efficiency, stable operation and the like, and can ensure that the oil sand dry distillation wastewater meets the discharge standard.