281 results about "Resource development" patented technology

The invention discloses a volume transformation process of a low permeability reservoir, and the volume transformation process sequentially comprises the following steps of (1) selecting a coal bed, shale, tight sand or other low-permeability reservoir; and (2) adopting a pitching current-limiting hydraulic fracturing way after perforating a plumb shaft; adopting a segmental multi-cluster perforation hydraulic fracturing way after perforating a horizontal well; and varying displacement, propping agent, fracturing fluid and sand ratio in the pumping process in both fracturing ways. Due to adopting the measures for varying the displacement, the sand ratio, the propping agent and the fracturing fluid in the hydraulic fracturing process, pitching current limitation can be adopted when the plumb shaft is fractured or the segmental multi-cluster perforation fracturing process is adopted for the horizontal well, and a netted crack system is formed in the reservoir. Due to adopting the volume transformation process, the volume transformation effect is realized, the weakness of the traditional hydraulic fracturing process that a single crank cannot conform to the commercial production capacity or the later yield is reduced too fast can be avoided, and technical support can be provided for the oil-gas resource development of the low-permeability reservoir.

The invention relates to the technical field of marine gas hydrate resource development engineering, in particular to an indoor experimental device and method for evaluating the mutual coupling relationship between the shakeout process and mechanical parameters of hydrate-containing loose sediments. The device comprises a high-pressure reaction kettle, a thermostatic control system, a triaxial pressurizing system, a confining pressure control system, a pore pressure injection system and a shakeout parameter test system, wherein the confining pressure control system, the pore pressure injection system and the triaxial pressurizing system are connected with the high-pressure reaction kettle; and the shakeout parameter test system is connected with the outlet end of the high-pressure reaction kettle. Through measurement of the mutual coupling relationship between shakeout parameters, such as the shakeout amount, the shakeout grain size and the shakeout speed of the hydrate sediments, under the actual temperature, pressure and stress conditions, and triaxial mechanical parameters, such as the stress-strain curve, the shear strength, the Yong modulus and the cohesion, a support is provided for forecasting the related relationship between the shakeout parameters and the mechanical parameters of a hydrate-containing reservoir, and a new concept is provided for probing into the shakeout mechanism of the natural gas hydrate reservoir.

The invention relates to a bottom spray-seeding substrate containing fermented sludge and a preparation method thereof. The bottom spray-seeding substrate containing fermented sludge comprises: fermented sludge, an organic matter, loam, a soil water-holding agent and a binder. The bottom spray-seeding substrate containing fermented sludge provided by the invention can improve the soil structure, and also can improve soil fertility, the water holding capacity of soil and ion exchange capacity, thereby creating a soil environment suitable for plants. With good air permeability and water holding capacity, the bottom spray-seeding substrate containing fermented sludge is rich in organic matters, and provides good environment and nutrients for rapid growth of plants. At the same time, fermented sludge is employed to replace traditional peat to change sludge into things of value, thus improving resource development and utilization of sludge, reducing the cost of ecological rehabilitation projects, creating huge environmental and social benefits, also creating objective economic benefits for enterprises, and promoting the development of circular economy.

An underwater target detection platform system suitable for complex water areas comprises a water surface supporting system, an underwater platform, and an umbilical cable connected to the water surface supporting system and the underwater platform. A propeller, a detector, a navigation electronic cabinet and a signal reception module are disposed on the underwater platform. The detector can be a camera, sonar, a laser scanner and the like. According to a using method of the underwater target detection platform system, the underwater platform controls, according to external information and motion information obtained by a sensor inside the signal reception module, the motion of the platform itself under the assistance of sonar scanning and navigation positioning to continuously correct track deviation caused by ocean currents so as to keep the platform itself stable. The underwater target detection platform system can navigate in complex areas to carry out underwater detection, underwater searching and other tasks, and acousto-optic integrated measuring is achieved. The system meets the requirements of seas, lakes, rivers, reservoirs and other underwater environments and the requirements of facility probing, maintenance, resource development and utilization.

The invention relates to the reutilization of the oil shale oil-making residue and provides a method of preparing the modified white carbon black from the oil shale oil-making residue includes: (1) calcining: pulverizing and calcining the oil shale oil-making residue; (2) preparing the white carbon black: adding the sulfuric acid solution to the calcined oil shale oil-making residue, reacting, filtering, washing the filter cake to neutrality, and drying to obtain the coarse white carbon black powder; and (3) modifying the white carbon black: adding modifier, reacting, standing, taking out a hydrophobic layer floating above the solution, and drying to obtain the modified white carbon black. The inventive method not only obtains the modified white carbon black with high purity and low cost but also solves waste residue pollution during the oil shale oil-making process. The method is a new resource reutilization method, which not only solves the solid waste pollution problem during the oil shale resource development but also provides a novel low-cost resource comprehensive utilization technology.

The invention belongs to the field of geological exploration and resource development of gas hydrates and relates to a method for analyzing the pore distribution of sediment by virtue of the saturation change of a gas hydrate. According to the method, the gas hydrate is generated in the sediment by virtue of pressurization temperature reduction. In the decomposition process of the generated gas hydrate, the temperature remains unchanged. In a mode of gradually reducing the pressure, the hydrate is promoted to be gradually decomposed. The signal strength of water in the sediment in each decomposition stage and the pore distribution situation of the decomposed hydrate are measured by virtue of nuclear magnetic resonance imaging equipment. The size and total quantity of pores occupied by the gas hydrate decomposed in each stage are determined by virtue of the temperature and pressure of each decomposition stage, so that the pore distribution characteristics of the sediment are calculated and described by virtue of an image shot by nuclear magnetic resonance imaging. The method has the advantage that under the condition that the natural core structure is not destroyed, the internal porosity distribution characteristics of the sediment can be clearly identified by virtue of the generation decomposition process of the hydrate. The method is easy to operate.

The invention relates to the technical field of resource development, in particular to a comprehensive utilization method of oil field drilling sludge. Sludge which does not contain oil is subjected to electrode separation, aerobic fermentation and granulation to form a product 1 or is subjected to extrusion forming to form a product 2; sludge which contains low content of oil is subjected to oxidation, aerobic fermentation and extrusion forming to form the product 2 or is subjected to granulation to form the product 1; sludge containing high content of oil is added with a moisture modifier, a combustion improver and a bulking and softening agent and is subjected to granulation forming and microwave drying, dried granules are screened, undersize materials are subjected to granulation forming again, and oversize materials form a product 3. Compared with the prior art, oil field drilling sludge, oily sludge and oil sludge and sand with different oil content are treated from the perspective of comprehensive utilization of resources, and the ultimate products can be effectively used as different resources.

The invention discloses a methylotroph bacillus and application thereof to preparation of a plant pathogenic bacterium sterilization agent. The methylotroph bacillus CGMCC No.13541 has the antagonism effect on various phytopathogens such as botrytis cinereal, fusarium graminearum and rhizoctonia solani, and belongs to an environment-friendly antagonistic strain with the obvious plant disease prevention and control effect; the development and application prospects are good. Culture liquid obtained through culture by a beef extract liquid culture medium can be used for preventing and controlling plant diseases. The bacteriostasis rate on the botrytis cinereal is as high as 84 percent; the value is about 8 percent higher than that of ordinary biocontrol bacteria; the foundation is laid for the novel disease prevention microbe resource development and utilization. The resistance capability is high; the use range is wide; the growth speed is high; fast and great-amount multiplication can be realized; the popularization and application of a biological prevention and control preparation in the field are convenient.

The invention belongs to the field of oil and gas resource development, and particularly relates to an inverted-pear-shaped underground salt cavern gas storage field and an establishing method thereof, wherein the salt carven gas storage field comprises a well completion tubular column, an injection-production tubular column, a central tubular column, cement rings and a salt cavern; the well completion tubular column extends from the ground surface into the salt cavern and is connected with the top of the salt cavern; the injection-production tubular column is positioned in the well completion tubular column and connected with the bottom of the well completion tubular column through a packer; and the central tubular column is positioned in the injection-production tubular column and hung on well head equipment. The salt cavern is shaped as an inverted pear, with the top part taking a round plane, the middle part taking a combined surface of a paraboloid and a spherical surface, and the bottom part taking a round plane. The establishing method of the salt cavern comprises steps as follows: determining the height, determining the lower structure size, determining the bottom round plane size, determining the upper structure size, determining the top round plane size, determining the thickness of the salt rock layers at the top and the bottom, selecting the tubular columns, and controlling the cavity shape. The salt cavern gas storage field has simple design process and clear mechanic mechanism, does not increase the difficulty and time for forming the cavity, and does not remarkably increase the cost.

The invention discloses a grid-accumulation-type regional land desertification early-warning method, and belongs to the field of resource development and biological environment protection. The method utilizes remote-sensing image data to monitor the regional land desertification change for a long time, and provides early warning to the regional land desertification according to the remote-sending image desertification monitoring result and a grid-accumulation-type regional land desertification early-warning model. The method comprises the steps of: firstly, judging stability of the remote-sensing data; extracting desertification degree information based on the stable remote-sensing image data to monitor the desertification for a long time; then, performing early warning to the regional land desertification according to the remote-sending image desertification data and the grid-accumulation-type regional land desertification early-warning model; and at last, combining with GIS (geographic information system) technology to construct a desertification monitoring and early-warning information system, and publishing the desertification monitoring and early-warning result onto the Internet by WEBGIS (web geographic information system) technology and .NET technology. The method can be effectively used for monitoring and early-warning the land desertification, and can provide guide and help for treatment and control of the land desertification.

The invention belongs to the technical field of marine gas hydrate resource development project, and particularly relates to a test method for the transport law of hydrate layer output fine sand in a gravel layer and a test device thereof. A simulated pack stratum sand sub-tube and a simulated pack gravel layer sub-tube are adopted to be connected through a quick connector to form a sand pack model for testing. A shunting steel block is installed at the inlet end, and an online laser particle analyzer and an electronic scale are connected at the outlet end through a porous mesh board. Sampling holes and pressure measurement holes are relatively arranged on the sand pack model. A differential pressure gauge is installed between the two adjacent pressure measurement holes, and all the hardware equipment is connected with a data acquisition and processing module. The change law of the output and the output particle size of the stratum fine sand under the gravel pack condition can be monitored in real time so that the test technology and experimental data support can be provided for the research of the transport mechanism of the fine sand in the pack gravel layer induced by hydrate depressurizing exploitation, and the test method and the test device have an important reference meaning for designing reasonable gravel pack parameters and extending trial exploitation duration.

The invention discloses pomelo peel cake as well as a preparation method and application thereof. The pomelo peel cake is prepared from the sponge layer of the pomelo peel by virtue of debitterizing, pectin extracting, cooking, pouring molding and the like, wherein the pH value of the pomelo peel cake is between 2 and 3.5, the sugar content is over 55 percent; the cake has palatable sour and sweet and slightly bitter, is fine and smooth and elastic, and has the unique flavor of pomelo. The polemo peel pectin extraction is combined with a fruit cake, the added acid solution is not only used for extracting a pomelo peel pectin substance, but also ensures that the pomelo peel cake has source taste, so that two functions are achieved at one step; residues generated in pomelo peel cake processing is rich in pomelo peel fibers, and can be used as a raw material for preparing dietary fibers or directly added into related foods to prepare foods rich in the dietary fibers, so that comprehensive resource utilization can be realized; and the method provided by the invention also can be used for changing waste into valuable, thus a novel approach of pomelo resource development and utilization is developed, and the defect that the pomelo resource is rich but utilized less in China is overcome.

The invention discloses a biological permeability-increasing method for a coal reservoir, which comprises the following steps in turn: (1) selecting a middle/low-class coal reservoir; (2) forming a channel for injecting liquid into the coal reservoir in a drilling mode or other mode; (3) selecting and culturing microorganism strains suitable for an anaerobic environment and capable of effectively utilizing coal; (4) injecting the nutrient liquid containing the microorganism strains into the coal reservoir in a hydraulic fracturing mode or other mode; (5) confirming shutdown time of a well according to the difference of the coal rank; (6) organizing the subsequent production according to the conventional coal-bed gas well draining extraction or gas extraction process; and (7) checking an effect. A permeability-increasing technology for the coal reservoir is a key point for the coal bed gas resource development and the coal mine gas treatment. The invention provides the permeability-increasing technology utilizing the biotechnology for the middle/low-class coal reservoir; the coal is degraded by the microorganisms, so that the purpose of increasing the permeability of the coal reservoir is achieved; and the biological permeability-increasing method for the coal reservoir has a significance in promoting the coal bed gas resource development and the coal mine gas extraction.

Oil sands and like host materials are leached with a selected leachant to render pumpable the oil (including heavy oil, bitumen or kerogen and asphaltenes) as leachate. In a preferred embodiment, natural deposits are in situ leached and the leachate recovered and removed for treatment. The leachant is separated and recycled. The leachant is selected to be biodegradable and to not precipate asphaltenes, and to comprise monoterpenes of the formula C₁₀H₁₆. The overall process allows environmentally acceptable resource development and contaminated site remediation.

The invention relates to sludge granulation and drying device and method, which can safely and effectively treat wet sludge of a sewage treatment plant so as to facilitate the subsequent resource development and utilization of sludge. The device comprises a screw extrusion granule forming machine, a spout fluidized bed and a dried sludge granule stock bin, and the screw extrusion granule forming machine comprises a drive shaft, a screw feeder, a sludge extrusion forming pore plate and a rotating cutter. The method comprises the following steps of: dividing the spout fluidized bed into an upper spout bed area and a lower fluidized bed area, which are communicated, by using a middle partition board; loading the wet sludge granules from the screw extrusion granule forming machine downward into the spout bed from the bed surface of the spout bed; leading the primarily dried sludge granules to flow to the bottom of the fluidized bed from the bottom opening of the spout bed, and leading theother part of hot gas medium to enter the fluidized bed from a fluidized air inlet to deeply dry the sludge granules; enabling the dried sludge granules to move upward from the bottom of the fluidized bed to the bed surface of the fluidized bed; and finally, overflowing the dried sludge granules out from the fluidized bed to enter the dried sludge granule stock bin.

The invention relates to a large-displacement horizontal well continuous tubing drilling robot, which comprises a former centralizer, a rear centralizer, a front motion short joint, a back motion short joint and an extension shortening section; the front motion short joint, the back motion short joint and the extension shortening section are connected to each other in turns; the former centralizers and the rear centralizers are respectively installed at the front end and the rear end of the front motion short joint and the extension shortening section. The large-displacement horizontal well drilling robot is provided with a mud flow channel, which can circulate mud in tow continuous tubing and drilling, therefore the resistance of mud is reduced to the maximum extent. The large-displacement horizontal well drilling robot can carry on two-way haulage, which can solve the jam problem of the robot to a great extent. The large-displacement horizontal well continuous tubing drilling robot is not only suitable for hot dry rock development, but also suitable for unconventional oil and gas (natural gas hydrate, coalbed methane, tight oil and gas, shale gas) and conventional oil and gas resources development.

The invention relates to a centralized operation and maintenance-based hardware resource analysis and assessment method. The method comprises the following steps of: 1) defining types of system hardware resource monitoring indexes; 2) periodically acquiring system hardware resource indexes; 3) establishing an analysis and assessment model for the system hardware resource monitoring indexes; and 4)analyzing and assessing system hardware resources. Aiming at automatic equipment resource data of multistage systems in a centralized operation and maintenance mode, multiple effective analysis and assessment methods are provided to predict system resource development trend, mine rules of system operation process and potential safety hazards, assist and schedule automatic operation and maintenance personnel to comprehensively grasp possible problems of the systems, enhance risk prevention levels of multistage intelligent power grid scheduling control systems, and satisfy requirements, for operation and maintenance work of scheduling control systems, of rapid development of power grids.

A deep-water annular floating artificial port is provided with several single modules connected by fixed connectors to form an arc-shaped module; several arc-shaped modules are connected by separate connectors to form a A ring-shaped floating structure that can be opened and closed for ships to enter and exit. The invention can not only be opened as a large-scale transfer base for the development of deep-sea oil and gas; moreover, it also has the functions of providing a large amount of material storage, transfer, berthing of working ships, shelter from wind, and helicopter take-off and landing for the development of deep-sea oil and gas resources.

The invention provides a well body structure and method for exploiting geothermal resources of dry-hot rock and belongs to the field of geothermal resource development. According to the well body structure and method for exploiting the geothermal resources of the dry-hot rock, the heat exploiting efficiency can be greatly improved, and the heat loss in the heat exploiting process is reduced. The well body structure comprises a conventional drilling well-completion section and an ultra high temperature stratum drilling well-completion section; the conventional drilling well-completion section extends from the ground to a dry-hot rock heat insulation layer and comprises a surface layer sleeve and a technical sleeve arranged inside the surface layer sleeve; the surface layer sleeve is located at the top end of a well hole, and a surface layer cement ring is fixedly sealed between the surface layer sleeve and the well hole; the technical sleeve is located at one end inside the dry-hot rock heat insulation layer, and a technical cement ring is arranged between the technical sleeve and the surface layer sleeve; the ultra high temperature stratum drilling well-completion section extends from the dry-hot rock heat insulation layer into the dry-hot rock; an upper heat insulation and exploiting pipe is arranged inside the technical sleeve of the conventional drilling well-completion section; a lower heat insulation and exploiting pipe and a heat conducting and transferring pipe which are sequentially connected are arranged in the ultra high temperature stratum drilling well-completion section; and the upper heat insulation and exploiting pipe and the lower heat insulation and exploiting pipe are connected through a flow channel variable controller.

The invention discloses an experimental method and device for application of liquid nitrogen fracturing in geothermal development, and relates to the technical field of geothermal resource development. The experimental method for the application of liquid nitrogen fracturing in the geothermal development comprises the steps that a required rock test piece is drilled, the rock test piece is processed into a shape matched with a confining pressure device, meanwhile, drilling hole is carried out on the rock test piece to form a hole, and a simulating shaft is manufactured and formed in the hole;the rock test piece is heated to enable the rock test piece to reach preset temperature of simulating geotherm; the rock test piece reaching the preset temperature of the simulating geotherm is mounted into the confining pressure device, and preset confining pressure and preset gap pressure is applied to the rock test piece through the confining pressure device; and liquid nitrogen fracturing liquid is injected into the hole of the rock test piece, when pressure of the liquid nitrogen fracturing liquid reaches a preset condition, the liquid nitrogen fracturing liquid is stopped to be injectedand the confining pressure is discharged. According to the experimental method and device for the application of liquid nitrogen fracturing in the geothermal development, fracturing of rock nearby thegeotherm by adopting the liquid nitrogen can be simulated to study the damage condition of rock nearby the geotherm by thermal stress induced by ultra-low temperature.

The invention relates to the method used to extract purification secoisolarciresinol di-glycoside from flax seed. It belongs to farm produce resource development and functionality health foods technique field. It includes the following steps: using flax seed as raw material; low temperature leaching degreasing by organic solvent; extracting by alcohol solution; adding alkali to hydrolyze; neutralizing and adjusting pH value; reducing pressure and condensing; micro-straining; and purifying. It has superiority in security, economical efficiency, preparation scale, and product purity. Its use is functionality food mixture or health foods.

The invention discloses a preparing method of organic nutrient soil. The method comprises the steps that life or agriculture waste water is filtered through a filter screen and enters a device which is provided with four layers of adsorbents, the waste water is subjected to cycle treatment until the waste water meets the agricultural irrigation water standard, and the adsorbents are taken out for standby application; then the adsorbents which adsorb and contain a large amount of organic pollutants are matched with minor ingredients to conduct fermentation and prepare solid nutrient materials, and the solid nutrient materials are mixed with the soil to obtain the organic nutrient soil. According to the preparing method, the organic nutrient soil easily absorbs nutrition and is good in fertility and applied to agricultural production, and the production efficiency is improved; not only is purification treatment on polluting waste achieved, but also green circulation economy of resource development and utilization on the polluting waste is formed.

The invention belongs to the field of resource development of subsidiary agricultural products, functional food additives and processing of nutrient health-care products, and particularly discloses a method for preparing wheat bran xylooligosaccharide by a superpressure-enzyme combination process. The method uses wheat bran as the raw material and is characterized by comprising the following steps: pulverizing and screening the wheat bran, adding water, carrying out ultrasonic treatment, carrying out composite enzyme treatment by using amylase, saccharifying enzyme and papain to obtain wheat bran dietary fiber, mixing the wheat bran dietary fiber and xylanase to carry out enzymolysis reaction under superpressure conditions, decolorizing the enzymolysis supernate, concentrating, and carrying out freeze-drying to obtain the xylooligosaccharide powder product. The method enhances the extraction rate of the wheat bran oligosaccharide, has the advantages of short time consumption and cost saving, and has great economic benefit.

A streptomyces strain, and anti-kidney-cancer applications of piericidin metabolites thereof are disclosed. The streptomyces strain is streptomyces sp.HBERC-58855, and is deposited in the China Center for Type Culture Collection, in Wuhan University, Wuhan, China on April 20, 2017. The accession number of the streptomyces sp.HBERC-58855 is CCTCC NO:M 2017186. The 16sRNA nucleotide sequence of the streptomyces sp.HBERC-58855 is shown as SEQ ID NO:1. Piericidin compounds including piericidin A, piericidin A2, piericidin C2, IT-143-A, IT-143-B and piericidin s3a are extracted from the streptomyces sp.HBERC-58855 through fermentation for the first time, and are applied in preparation of anti-kidney-cancer medicines. Candidate compounds are provided for development of novel anti-kidney-cancer medicines. The streptomyces and the piericidin compounds are of great significance for marine microorganism medicine resource development.

The invention discloses a breeding method for local chicken variety resource protection and utilization, and belongs to the technical field of poultry breeding. According to the method, the local chicken variety resources are not manually selected, and the inherent characteristics of the original variety keep unchanged. During the utilization in each year, 12-week old cocks with the average body weight being 95 percent to 107 percent are selected and remained in a seed reserving group, and are subjected to hybrizing matching with cultured high-breeding-property or fast-growth new strains (matched strains), the appearance characteristics of the original local chickens are reserved, the egg laying performance/growth speed of the local variety is improved/accelerated by 15 to 20 percent. The method provided by the invention has the advantages that the original local variety is used as the strain for participating in the matching, the damage of current variety breeding or pure hybridization to resources in the past local chicken resource development and utilization is avoided, and the duplex effects of protection and utilization are achieved.