71 results about "Oil sands" patented technology

The present application belongs to the technical field of oily sewage treatment, and specifically discloses an oily sewage treatment system for an oil sand oil treatment station, which comprises a first treatment pool, a second treatment pool and a high-temperature ethylene glycol main pipe, the two pools are connected through a connecting pipe with a sand filtering assembly, a cover is arranged on the top of the pool body, a screw pump is installed on the cover of the second treatment pool through a support, the rotor and the stator of the screw pump extend into the pool, an oil liquid inlet pipe is connected to the first treatment pool, an inclined sand screening plate is arranged in the first treatment pool, high-temperature ethylene glycol coils are arranged on the bottom of the two pools, the coils are connected with the high-temperature ethylene glycol main pipe and have a gap with the bottom of the pool, and a loading sewage discharge pipe is further arranged in the pool. The present application is aimed at the problem that the existing sewage discharge pool is prone to freezing and solidification of oil liquid in a low-temperature environment, thereby affecting secondary treatment. In the present application, the sewage enters the first treatment pool through the oil liquid inlet pipe, the sand screening plate is used to preliminarily remove sand, the oil liquid enters the second treatment pool through the connecting pipe after sand filtering, the high-temperature ethylene glycol heats the sewage through the coils, thereby reducing the viscosity of the oil liquid and preventing freezing, and the screw pump is used to extract and recycle the oil liquid.

The application provides a pre-leaching auxiliary solvent extraction method for oil sand or oil sludge containing heavy crude oil, and belongs to the technical field of product separation and solid waste treatment in the field of petroleum chemical industry. The bitumen is dispersed by using aromatic hydrocarbon first, and then extracted by using naphthenic hydrocarbon, so that good extraction effect can be achieved, a surfactant does not need to be added, the solid phase residual oil rate after treatment is less than 1wt%, and the national relevant standard is met; the pre-leaching agent and the extractant used in the application have low boiling points, are easy to distill and recover, and the recovery rate is greater than 85%. In addition, the method provided by the application has the operation temperature of room temperature (20-30 DEG C), the operation condition is mild, the method is simple, the energy consumption is low, the organic solvent and the crude oil (containing bitumen and other heavy components) can be recovered by distillation, and the resource utilization is realized.

Nanoflocculants are provided that are comprised of nanoparticles of titanomagnetite having anionic surface moieties associated with electrostatically bound polymerized chains of cationic polyacrylamide, further comprising lauryl sulfate moieties adsorbed to the surface of nanoparticles of the titanomagnetite nanoparticles and / or adsorbed to the bound cationic polyacrylamide polymers. These nanoflocculants combine the dual functionalities of the polyacrylamide / lauryl sulfate moieties, as well as the surface activity of titanomagnetite nanomaterials. Process are provided for making and using the disclosed nanoflocculants, including uses for flocculating intimate aqueous dispersions of solids and bitumen.

The present application relates to a kind of emulsion type capsule slow-release oil sand dissociation agent and its preparation method and application, belong to oil sand pitch technical field.Dissociation agent is by the water phase flocculating agent solution of volume ratio (10~30) and the oil phase containing emulsifier mixed and formed water-in-oil emulsion;Water phase flocculating agent solution includes the flocculating agent of concentration 10~100 mg / L, and the oil phase containing emulsifier includes the emulsifier of volume concentration 1~4%.By oil outer phase, the viscosity of pitch and oil-water interfacial tension are reduced, the calcium and magnesium ion concentration in system can be reduced after slow release of flocculating agent solution, and then the adhesion between pitch and silicon surface is weakened, on the basis of reducing the dosage of flocculating agent, further improve the dissociation efficiency of pitch on sand surface.It can not change the pH of system, prevent the disadvantage that the hydrophobicity of pitch is reduced and the difficulty of pitch droplet coagulation is increased by hot lye.

A method of controlling odor where the odor is generated by sources like decomposing organic matter in landfills or other sources is provided. A wood vinegar-containing solution, adjusted for the source of the odor, can be applied to the source of the odor. A method of improving the rate and completeness of settling of fine clays from oil sands tailings is also provided. Additional disclosure of a method of controlling algae bloom in a body of water is disclosed. The method includes the steps of providing a wood vinegar-containing solution, adjusting the composition of the wood vinegar-containing solution according to the states of both the body of water and the algae, respectively, then applying the wood vinegar-containing solution to the surface of a body of water, and inhibiting growth of the algae responsible for the algae bloom.

Nanoflocculants are provided that are comprised of nanoparticles of titanomagnetite having anionic surface moieties associated with electrostatically bound polymerized chains of cationic polyacrylamide, further comprising lauryl sulfate moieties adsorbed to the surface of nanoparticles of the titanomagnetite nanoparticles and / or adsorbed to the bound cationic polyacrylamide polymers. These nanoflocculants combine the dual functionalities of the polyacrylamide / lauryl sulfate moieties, as well as the surface activity of titanomagnetite nanomaterials. Process are provided for making and using the disclosed nanoflocculants, including uses for flocculating intimate aqueous dispersions of solids and bitumen.

The invention relates to an emulsion type capsule slow-release oil sand dissociation agent as well as a preparation method and application thereof, and belongs to the technical field of oil sand asphalt. The dissociation agent is a water-in-oil emulsion formed by mixing a water-phase flocculant solution and an emulsifier-containing oil phase in a volume ratio of (10-30): (70-90); the water-phase flocculant solution comprises a flocculant with the concentration of 10-100 mg / L, and the emulsifier-containing oil phase comprises an emulsifier with the volume concentration of 1-4%. The asphalt viscosity and the oil-water interfacial tension are reduced through the oil external phase, the concentration of calcium and magnesium ions in the system can be reduced after the flocculant solution is slowly released, then the adhesive force between the asphalt and the silicon surface is weakened, and the dissociation efficiency of the asphalt on the sand surface is further improved on the basis of reducing the dosage of the flocculant. The defects that the hydrophobicity of asphalt is reduced and the condensation difficulty of asphalt liquid drops is increased due to hot alkali liquor can be prevented without changing the pH value of a system.

There is provided a fluid treatment separator and a method of treating fluid such as tailings from tailings ponds resulting from oil sands production. A fluid treatment separator may be used for treatment of a mixture containing at least oil and water. The separator includes a mixing chamber, an inlet and at least one outlet. The mixing chamber defines a flow path between the inlet and the at least one outlet. The inlet includes a nozzle arranged to introduce turbulence to the mixture along the flow path. At least one magnet is arranged to apply a magnetic field to the mixture along the flow path.

The invention discloses a layered visual stratum simulation experiment device and an experiment method thereof, and belongs to the technical field of oil and gas exploitation experiments. The device comprises a stratified rock core simulation part which is provided with a transparent shell and an internal multi-layer rock stratum structure, a medium injection pipe is arranged in a rock stratum, and standard quartz sand is filled in a penetrating crack and used for simulating an oil sand coexistence environment; the oil dripping assembly is used for injecting simulated oil into the crack and constructing an original oil sand distribution state; the membrane structure assembly is arranged on the crack flow path and used for guiding the injected medium to flow; the layered medium injection system can independently inject media into different rock stratums; and the parameter monitoring system is used for collecting pressure and temperature data in real time. According to the invention, the whole-flow simulation from original state construction, layered liquid injection driving to flow process visual observation and data synchronous acquisition can be realized, the authenticity and systematicness of stratum simulation are obviously improved, and a reliable experimental basis is provided for optimization of an oil and gas exploitation process.

A system powers a heating element with switched direct current (DC) power. The high-speed switching of the heating element triggers lattice excitation in the element alloy, heating up the element. Multiple heating elements heat up a plate on which oil sands can be deposited. The heated plate heats up the oil sands, allowing the bitumen to flow away from the sand.

The application provides a granular dispersant assisted solvent extraction method for oil sludge / oil sand, and belongs to the technical field of chemical separation.The application provides a granular dispersant assisted solvent extraction method for oil sludge / oil sand, which comprises the following steps: mixing a solution of a granular dispersant with oil sludge / oil sand, performing solvent extraction, and separating to obtain solid phase particles and liquid phase; the granular dispersant comprises fatty alcohol polyoxyethylene ether carboxylic acid, fatty alcohol polyoxypropylene polyoxyethylene ether carboxylic acid or dodecyl benzene sulfonic acid.In the application, the oil sludge / oil sand is a mixed system of crude oil, water and mineral particles, wherein water can cause mineral particle agglomeration, and mineral particle agglomeration can bind asphaltene aggregates in the crude oil; by adding the granular dispersant, the repulsive force between the mineral particles is increased, so that the mineral particles are dispersed, thereby the bound asphaltene aggregates can be released, and the residual oil rate of the solid phase particles is reduced.

The invention discloses a method for predicting oil sand seepage characteristics through a two-dimensional digital core. The method comprises the following steps: step 1, acquiring a core grayscale image of oil sand by using an environmental scanning electron microscope; 2, denoising processing is carried out on the core gray level image of the oil sand; and step 3, carrying out binarization processing on the denoised rock core grayscale image to obtain a binary image of oil sand. And 4, vectorizing the binary image of the oil sand to obtain a vector diagram of the oil sand. And 5, calculating the porosity and the effective porosity of the oil sand by using COMSOL software. And 6, carrying out a two-dimensional digital rock core seepage simulation experiment by using the COMSOL. The relationship between the oil sand porosity and the rock seepage characteristics is established, and the seepage characteristics of the oil sand can be quickly predicted only by simply carrying out two-dimensional digital core simulation.

The present disclosure provides systems, processes, devices and techniques for pre- treating oil sands fine tailings in order to remove coarse debris from oil sands fine tailings and produce screened oil sands fine tailings, the screened oil sands fine tailings having improved reactivity and / or mixability with chemicals in a subsequent chemical tailings treatment operation that can include dewatering. The pre-treatment screening techniques can further produce screened oil sands fine tailings thereby enabling a reduction in terms of damage, clogging and / or plugging of downstream equipment used in the downstream tailings treatment operation, which can include flocculation and dewatering.

The invention provides a method for evaluating the oil washing efficiency of a surfactant. According to the method, the oil content of the oil sand is measured by adopting a thermogravimetric analysis method, and the oil washing efficiency of the surfactant is evaluated by calculating the difference of the oil content before and after the oil sand is washed by the surfactant. According to the method, the oil washing efficiency of the surfactant can be simply, conveniently and rapidly evaluated, errors among multiple groups of results of the same surfactant are small, parallelism is good, the oil washing efficiency of different surfactants has obvious difference, the results of the oil washing experiment method are reliable, and the method is suitable for large-scale popularization and application. The oil washing effects of different surfactants can be effectively evaluated.

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.

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, steel 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 invention discloses a chemical flooding and encryption synergistic interaction in-situ reversing displacement experiment method. The method comprises the following steps that an experimental rock core is manufactured, manufacturing tools comprise a rock core holder body, a square-head pressing plug column and a flat-head bolt, a mixture of natural oil sand particles and resin adhesive is poured into a rock core square cavity, the square-head pressing plug column is inserted into the rock core square cavity, compaction is conducted, and the experimental rock core is manufactured; the core holder comprises a core holder body, a pressing ring, a sealing plunger and a rubber tube connector, the core is vacuumized to be saturated with water and oil and then placed in a core square cavity, the core is sealed and then subjected to a water drive or chemical drive direction-changing displacement experiment, displacement and pressure maintaining are conducted by closing a valve, and direction-changing displacement is achieved by opening and closing the valve; and then carrying out under-pressure nuclear magnetism or CT experiment test on the experimental rock core, and comparing the displacement effect before reversing, so as to demonstrate the chemical encryption synergistic interaction mechanism from the microcosmic use degree. According to the invention, the experimental error is reduced, and the displacement experiment effect is improved.

The utility model relates to the technical field of oil sand transfer, in particular to an oil sand transfer bag, which improves the transfer efficiency and safety and reduces the risk of environmental pollution. Comprising; a storage cavity is formed in the oil sand transfer bag, and a feeding opening is formed in the top end of the oil sand transfer bag; the hoisting assembly is arranged outside the oil sand transfer bag in a sleeving manner and is used for hoisting the oil sand transfer bag; the sealing mechanism is arranged on the feeding opening of the oil sand transfer bag and used for sealing the feeding opening; the hoisting assembly further comprises a plurality of vertical belts which are circumferentially arranged, longitudinally wound and used for bearing the weight of the oil sand transfer bag. The transverse belts are transversely wound and are used for bearing transverse tension of the oil sand transfer bag after the oil sand transfer bag bears the oil sand; the two lifting lugs are symmetrically arranged on the vertical belt and are respectively arranged on two sides of the oil sand transfer bag; and the dumping lifting lugs are arranged on the group of transverse belts at the bottom and are arranged at the side ends of the oil sand transfer bags.

The present application belongs to the technical field of oil-water separation equipment, and discloses an oil-sand oil produced water oil removal device, aiming at solving the problems of liquid disturbance destroying oil-water stratification, low separation efficiency and sampling valve easy to scale and leak in the prior art. The device comprises a tank body and a liquid inlet steady flow unit, the liquid inlet steady flow unit comprises a containing cavity, an arc-shaped buffer plate, an annular baffle and a conical hopper. Through the structure of the liquid inlet steady flow unit, the produced water enters from the top opening, is preliminarily slowed down by the arc-shaped buffer plate, and is guided to the bottom of the containing cavity through the flow channel formed by the annular baffle and the conical hopper, so as to effectively isolate the liquid disturbance and avoid impacting the original liquid in the tank. Finally, the produced water flows into the tank body smoothly from the overflow port. The tank is sequentially provided with a flow straightener and a two-stage packing type gas-liquid separator, so as to realize gas-liquid and oil-water separation, effectively protect the formed oil-water gravity stratification interface, and improve the oil-liquid separation efficiency.

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.

A method (100) of producing commercially pure carbon dioxide can include providing (110) a body of rubblized carbon based ore. The body of rubblized carbon based ore can be heated (120) at an elevated temperature under an oxygen deficient atmosphere to produce water, carbon dioxide, a residual mineral ore, and optionally hydrocarbon products. The carbon dioxide can be separated (130) from the water and optional hydrocarbon products. The carbon based ore can include oil shale, coal, tar sands, peat, tasmanite, or a combination thereof.

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 invention discloses a chemical flooding and encryption synergistic interaction quantum visible wave and range characterization method. The method comprises the following steps: mixing natural oil sand with crystal resin glue to obtain an oil sand resin mixture, paving the oil sand resin mixture at the bottom of a rock core pressing mold, covering the upper and lower parts with crystal resin rubber plates, compacting and sealing the periphery to obtain a natural oil sand homogeneous rock core; a well point is arranged on the rock core, a hole is drilled, a connecting end cover with threads is fixedly adhered to the drilled hole, and the connecting end cover is used for being connected with a displacement pipeline; drawing grids on the surface of the rock core; then carrying out porosity testing by adopting a porosity-permeability continuous testing method, and sequentially and respectively vacuumizing saturated water and saturated oil; a displacement experiment is carried out by adopting a displacement fluid with quantum dots; in the experiment process, ultraviolet light is used for irradiating the rock core, and a camera is used for recording the displacement process, so that the sweep range of the displacement medium and the use range of the remaining oil can be represented. According to the invention, oil displacement wave identification and visual continuous characterization are realized.

The application discloses a kind of drilling fluid asphalt compositions and preparation method thereof.The drilling fluid asphalt composition of the application includes the following raw material components: asphalt shell component and asphalt core component, wherein the asphalt shell component includes the following raw material components by weight: inferior residue reduction: 100 parts; Oil sand asphalt: 20-60 parts; Modifier: 0.1-2 parts; Wherein the asphalt core component includes the following raw material components by weight: ethylene tar heavy component: 100 parts; Pretreatment agent: 3-12 parts; Performance regulator: 0.5-8 parts.The application uses difficult-to-handle inferior residue reduction, oil sand treatment agent asphalt, ethylene tar as raw material, and obtains high softening point asphalt suitable for drilling fluid system after modification treatment, which is suitable as the main material for producing asphalt drilling fluid.

A method for simulating oil sand sample by using epoxy resin cemented sandstone, comprising the following steps: step one: measuring sample mass and volume; step two: collecting oil volume, water volume, oil mass, water mass, and solid residue mass of rock sample containing oil and water; step three: calculating porosity, water saturation, oil saturation, and oil to solid residue mass ratio; step four: testing viscosity-temperature (viscosity-temperature) relationship curve; step five: component and content analysis; step six: particle size analysis and content analysis; step seven: configuring epoxy resin glue; step eight: configuring argillaceous cement in line with the natural oil sand; step nine: configuring artificial sample raw materials; step ten: designing cylindrical standard core pressing mold; step eleven: preparing standard artificial core by using artificial layer-by-layer tamping method. The method uses non-toxic epoxy resin to replace toxic natural asphalt to prepare artificial oil sand simulation sample, which meets the green, healthy and environmentally friendly standards.

The present disclosure provides a method and use of green and blue-green algae for treating oil sands process-affected water (OSPW), to biodegrade naphthenic acids in the OSPW. The method comprises obtaining irradiated OSPW, combining the irradiated OSPW with blue-green algae or green algae to form a mixture, and applying light to the mixture. The irradiated OSPW may be OSPW that was irradiated with gamma or electron-beam irradiation. Light and heat may be applied to enhance the method and use.

A method for predicting the rock mechanical parameters of oil sands using digital core analysis comprises the following steps: Step 1: Obtaining grayscale images of oil sand cores using an environmental scanning electron microscope. Step 2: Denoising the grayscale images of the oil sand cores. Step 3: Binarizing the denoised grayscale images to obtain a binarized image of the oil sands. Step 4: Vectorizing the binarized image of the oil sands to obtain a vector image. Step 5: Calculating the porosity of the oil sands using Matlab software. Step 6: Conducting a digital core deformation simulation experiment using COMSOL. This invention can quickly and accurately predict the rock mechanical parameters of oil sands, while saving significant manpower, resources, and time.

The invention relates to the technical field of oil sand detection, and discloses a target area oil sand resource quantity determination method, which comprises the following steps: collecting a plurality of oil sand samples of a plurality of areas of a target area, and determining the reservoir type of each area according to the average porosity and the average permeability of the oil sand sample of each area; performing single-hydrocarbon carbon isotope characteristic analysis on the oil sand sample of the region of the target reservoir type to determine an oil gas source of the region of the target reservoir type; performing inclusion uniform temperature and salinity test on the oil sand sample of the region of the target reservoir type to determine the oil gas formation period of the region of the target reservoir type; determining an oil sand storage area from the area of the target reservoir type according to the oil and gas source and the oil and gas formation period; and determining the oil sand resource quantity of the oil sand storage area according to the oil-containing area, the average effective thickness of the oil sand, the rock density and the corresponding acquisition coefficient of each depth domain in the oil sand storage area so as to improve the accuracy of estimating the oil sand resource quantity of the target area.