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82 results about "Engineering production" patented technology

Production engineering is a combination of manufacturing technology, engineering sciences with management science. A production engineer typically has a wide knowledge of engineering practices and is aware of the management challenges related to production.

A method for aging analysis of prefabricated components based on BIM5D technology

The present invention discloses a method for analyzing the aging of assembled anti-collision components based on BIM5D technology, which relates to the field of municipal infrastructure management. The construction project is three-dimensionally modeled using modeling software, the bill of quantities is input into the corresponding component type parameters, the construction project schedule information is compiled using relevant software, and then the cost information and progress information are integrated using BIM5D technology, and the aging model of each task is analyzed based on the WBS work breakdown structure and earned value method. The real-time progress of the project and the change of funds are provided to project managers and construction technicians from different angles such as time dimension and project dimension, the degree of deviation is evaluated, the cause of the deviation is analyzed and corrective measures are proposed. The present invention can effectively predict the progress-cost control problems that occur in the actual production of the project, and provide a reliable aging analysis method for key node control and early warning.
Owner:WUHAN MUNICIPAL CONSTR GROUP +1

Motion control method based on tower type pumping unit

The invention provides a motion control method based on a tower type pumping unit, which relates to the technical field of oil field oil production engineering, and comprises the following steps of: establishing a dynamic relationship among components of the tower type pumping unit according to energy consumption through a novel tower type pumping unit dynamic model established based on a Lagrange equation; according to the method, the relation between the variable suspension point load and the displacement and the speed at the suspension point is visually given, so that the built model can more accurately describe the motion relation at the suspension point of the tower type pumping unit, a theoretical basis is provided for designing a more accurate and more energy-saving control method, the tower type pumping unit is accurately controlled, and the operation efficiency of the tower type pumping unit is improved. A physical model of the tower type pumping unit is simplified, and controller design and fault diagnosis of the tower type pumping unit are facilitated.
Owner:NORTHEAST GASOLINEEUM UNIV

A numerical simulation method for the integrity of cement sheath system in oil and gas wells under alternating temperature and pressure.

A numerical simulation method for the integrity of cement sheath systems in oil and gas wells under alternating temperature and pressure is characterized by the use of extended finite element method (XFEM), concrete damage plasticity model theory, Cohesive element method, and bilinear traction separation criterion, based on elastoplastic theory and plastic damage theory. This method can simulate not only the failure process of the cement sheath-casing interface under alternating temperature and pressure and characterize the mechanical behavior of interface failure, but also the failure process of the cement sheath itself and characterize its mechanical behavior. By comprehensively analyzing the failure behavior of the cement sheath system integrity in oil and gas wells, this method enables a realistic evaluation, prediction, and diagnosis of the integrity of the casing-cement sheath-casing assembly system under alternating temperature and pressure, which helps optimize cement slurry systems, improve cementing quality, and prevent cement sheath integrity failure. This invention is applicable to the field of oil and gas drilling and production engineering technology.
Owner:SOUTHWEST PETROLEUM UNIV

Underground data acquisition unit and method with flow, pressure and temperature monitoring functions

The invention relates to the technical field of oil field oil production engineering, in particular to an underground data acquisition unit with flow, pressure and temperature monitoring functions and a method. The method is suitable for underground working condition monitoring of submersible motor type lifting equipment such as submersible screw pumps, submersible plunger pumps and submersible centrifugal pumps. The unit comprises a pressure-resistant shell, wherein a central pipe, an electromagnetic flowmeter, two pressure and temperature sensors and an underground parameter collector are integrated in the pressure-resistant shell; the two sensors are used for measuring the temperature and pressure of liquid flow of the central pipe and the temperature and pressure of an oil casing annulus respectively; the electromagnetic flowmeter measures the flow, and real-time temperature and pressure data are used for compensation to improve the precision. The unit is further provided with a collecting pipe, an upper end, a lower end, a connecting sliding ring, an annulus / oil pipe inner testing channel, a sealing rubber ring and the like. Through the integrated design, synchronous high-precision in-situ monitoring of underground key parameters is achieved, the problem that underground data of multiple instruments are not synchronous is solved, and a reliable data terminal is provided for an intelligent oil field.
Owner:BEIJING HUAHUI HENGTAI ENERGY TECH CO LTD

Device for testing sealing performance of full-size sleeve-cement sheath-stratum combination of hydrogen storage warehouse

The invention discloses a device for testing the sealing performance of a full-size sleeve-cement sheath-stratum combination of a hydrogen storage bank. Relates to the technical field of petroleum and natural gas drilling and production engineering, and is characterized in that the device comprises a sleeve-cement sheath-simulated stratum maintenance device for preparing the simulated stratum, an alternating load applying device and a sealing performance testing device; the method comprises the following steps: preparing a full-size simulated stratum through a maintenance device, constructing a'sleeve-cement sheath-simulated stratum 'integrated assembly by taking the full-size simulated stratum as a carrier, completing maintenance, and detecting the sealing integrity of the cement sheath after simulating the actual underground working condition; the simulation stratum capable of being used for testing the sealing performance of the cement sheath is prepared, the full-size simulation stratum serves as a core testing carrier, and quantitative evaluation of the sealing performance of the full-size cement sheath is achieved.
Owner:SOUTHWEST PETROLEUM UNIV

Oscillation shear valve and continuous wave high-speed transmission method

PendingCN120042576ASurveySlide valveContinuous waveOscillatory shear
The invention relates to the technical field of underground resource drilling engineering, in particular to an oscillating shear valve and a continuous wave high-speed transmission method.The oscillating shear valve comprises a valve seat, a stator, a rotor and a driving assembly, and the inner side of the upper portion of the valve seat and the outer side of the upper end of the stator are fixedly installed together. The structure is reasonable and compact, the rotor is driven by the driving assembly to rotate, when the rotor rotates and slurry flows into the position below the valve element through the flow hole, due to the fact that the difference value between the third area and the second area changes along with rotation of the rotor, the pressure of the slurry changes, pulse signals are formed, and therefore the changed pressure is reserved when the slurry circulates to a wellhead; the difference value between the third area and the second area is the same as the difference value between the third area and the second area, the frequency can be changed instantly, and compared with a traditional oscillating shear valve, the buffer time occupied when the frequency is changed is saved, the transmission rate is increased, and higher data density can be generated.
Owner:CHINA NAT PETROLEUM CORP +1

An experimental device for full-process simulation of squeeze packing in unconsolidated sandstone reservoirs, a full-process simulation experimental method, and a method for evaluating packing effect

The present invention belongs to the technical field of oil and gas development and production engineering, and specifically relates to a full-process simulation experimental device for squeeze packing of unconsolidated sandstone reservoirs, a full-process simulation experimental method, and a filling effect evaluation method. The full-process simulation experimental device includes an experimental device main body module, a constant flow liquid supply system, and a data measurement and acquisition system. The experimental device main body module includes a simulated reservoir mold, a simulated casing, a screen pipe, and a sealing cover plate. The simulated reservoir mold is sealed and detachably connected to the sealing cover plate. A number of simulated reservoir units are also provided in the simulated reservoir mold. The simulated reservoir units are laid layer by layer around the simulated casing and filled in the simulated reservoir mold. The simulated reservoir units are filled with simulated formation sand. The constant flow liquid supply system and the data measurement and acquisition system are connected to the experimental main body device. The simulation experimental device of the present invention can realize the full-process simulation of sand production - filling - production, and the filling effect evaluation method can provide theoretical guidance for the optimization of squeeze packing parameters at the construction site.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

A nuclear fuel assembly casting type upper nozzle machining clamp and machining method

ActiveCN116408666BSatisfy positioningMeet processing requirementsCasting typesMachining
The application relates to the technical field of nuclear fuel assembly manufacturing, and particularly discloses a nuclear fuel assembly casting type upper tube seat machining clamp and a machining method, wherein the tube seat blank is placed on a bottom plate, a positioning top block is pushed, four positioning pins below a positioning push rod are centered with positioning holes of the tube seat blank; then a positioning rod B is screwed to shorten the distance with a positioning rod A; then locking screws and fastening bolts on the edge frame of a positioning frame plate are locked to fix the tube seat blank on the bottom plate, positioning is realized; finally, the positioning rod B is completely screwed out of the positioning rod A, the bottom plate, the positioning frame plate and the tube seat blank are integrally taken out and fixed on a machining equipment. The machining clamp and the machining method satisfy the positioning clamping and machining requirements of the casting type upper tube seat, the upper tube seat after machining completely satisfies the drawing and technical condition requirements, and the machining scheme satisfies the engineering production.
Owner:CHINA NORTH NUCLEAR FUEL CO LTD

Oil well intelligent balanced production pipe column and construction method

The invention relates to the technical field of oil field oil production engineering, in particular to an oil well intelligent balanced production pipe column and a construction method. Comprising a guide screwed plug, an oil pipe, a balanced production tool, a layered packer, an oil well pump, a cable and a ground control system. The guiding plug is located at the lowest end of the tubular column string, the balanced production tools and the layered packer are connected in series through the oil pipe, the layered packer is used for separating oil layers, and the cable is connected with the balanced production tools, can penetrate through the layered packer and is finally connected to the ground control system. According to the bottom-hole regulator disclosed by the invention, the bottom-hole regulator is quickly regulated by adopting a design mode of an underground electric control liquid path channel, hydraulic direct pushing and multiple tracks; the mode that a motor controls liquid path pressurization and underground liquid path rapid pressure relief is adopted, and rapid response of the bottom-hole regulator is achieved; a variable-density liquid inlet hole adjusting mode is adopted, and linear adjustment under multiple underground rails is achieved; a multi-stage inner vulcanization sealing mechanism is arranged underground, and the problem that a sealing piece is prone to damage under high pressure is solved.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Acid-resistant controllable dissolution coating for soluble alloy, protection method and application

The invention provides an acid-resistant controllable dissolution coating for a soluble alloy, relates to the field of oil field oil production engineering, and aims to solve the problem that a soluble alloy material adopted by a soluble bridge plug in a high-temperature and acid environment cannot meet the construction environment requirements of acid fracturing fluid of an unconventional tight reservoir. A micro-arc oxidation coating is arranged on the surface of the soluble alloy; three dissolution starting holes with the depth reaching the surface of the soluble alloy are preset in the surface of the soluble alloy; and spraying a resin coating on the surface of the micro-arc oxidation coating. The acid-resistant controllable dissolution coating is applied to an acid-resistant soluble bridge plug tool body material used in unconventional tight reservoir large-scale fracturing, and the resin coating is sprayed on the surface of the soluble alloy after micro-arc oxidation treatment, so that the dissolution time of the soluble alloy in an acid fracturing fluid is effectively delayed; therefore, the effective pressure bearing time of a soluble bridge plug tool is prolonged, corrosion can be delayed for more than 8 hours in a high-temperature and acid environment, and the requirements of an unconventional tight reservoir acid fracturing fluid construction environment are met.
Owner:DAQING OILFIELD CO LTD +1

Safety protection bumping post device for constructional engineering production

The utility model discloses a constructional engineering production safety protection bumping post device which comprises a first protection post and a second protection post, the front end in the first protection post is rotatably connected with a first winding post, and the rear end in the first protection post is rotatably connected with a second winding post. Transmission gears are fixedly mounted at the upper ends of the first winding column and the second winding column, an auxiliary gear is meshed between the transmission gears, an auxiliary shaft is fixedly mounted at the upper end of the auxiliary gear, and a rotating handle is fixedly mounted at the upper end of the auxiliary shaft. According to the safety protection bumping post device for constructional engineering production, the number of the first protection posts and the number of the second protection posts can be conveniently set according to the size of a construction site, so that the protection range of the protection bumping posts is adjusted, an auxiliary shaft is conveniently locked through cooperation of a locking gear and a clamping block, and the safety protection bumping post device is convenient to use. And therefore, locking of the first winding shaft and the second winding shaft is achieved, and the stability of the protective cloth during winding is improved.
Owner:中国化学工程第四建设有限公司

Method and device for evaluating reliability of engineering production system

The invention relates to the technical field of reliability engineering, in particular to a reliability evaluation method and evaluation device for an engineering production system, and the method comprises the steps: obtaining a reliability block diagram of the engineering production system, determining the metadata of each function block, generating a reliability function network, marking a typical reliability structure unit, and obtaining a reliability function network; the method comprises the following steps: determining a function subnet, configuring a time domain strategy to generate a self-adaptive time grid, solving the equivalent reliability of the function subnet at a self-adaptive time point of the self-adaptive time grid to obtain a reliability sampling sequence of the engineering production system, and generating a reliability evaluation result. Therefore, the problems that in the related technology, due to the fact that semantic information corresponding to a reliability block diagram depends on manual disassembly, and a reliability evaluation result is calculated through fixed step size discrete approximation, missed judgment and misjudged are likely to occur due to complex topology, the calculation precision is poor in a high-risk time period, the calculation efficiency is low in a stable time period, and engineering decision is difficult to support are solved.
Owner:TSINGHUA UNIVERSITY

Sand blocking prevention rotational flow groove type slide valve mechanism of constant flow blanking plug for water injection well

The invention relates to the technical field of oil field oil production engineering, in particular to a sand blocking prevention rotational flow groove type sliding valve mechanism of a constant flow blanking plug for a water injection well. The mechanism comprises a fishing rod, the fishing rod penetrates through a pressing cap, a cam is inserted into the bottom end of the fishing rod, the pressing cap is connected with an upper body, the cam is installed on the upper body, the lower end of the upper body is connected with a lower body, the inner side of the lower body is connected with a sliding valve, a gap is formed between the sliding valve and the lower body, and a first contact face is arranged between the sliding valve and the lower body. The sliding valve is provided with at least one rotational flow groove, the rotational flow groove is spirally wound on the outer surface of the sliding valve, the upper end of the sliding valve is connected with a limiting righting rod, the limiting righting rod controls the sliding valve to rotate and slide in a reciprocating mode, a water nozzle is installed in the lower end of the sliding valve, a filter screen is installed at the bottom end of the lower body, and a plurality of O-shaped packing are installed on the filter screen. According to the sand blocking prevention rotational flow groove type sliding valve mechanism of the constant-flow blanking plug for the water injection well, the sand blocking probability of the sliding valve of the constant-flow blanking plug is effectively reduced, and the technological service life of the constant-flow blanking plug is prolonged.
Owner:DAQING OILFIELD CO LTD +1

Supply device for controlling aluminide airflow and using method

The invention relates to the technical field of chemical vapor deposition, and discloses a supply device for controlling aluminide airflow and a use method, and a positioning sheet is matched with a fixed bracket, so that the device can be conveniently and quickly clamped, and the demand of large-scale engineering production is met. The gas flow distributor can equally divide the process gas, the gas outlet hole of the gas flow distributor accurately corresponds to the turbine blade cavity, the laminar flow phenomenon is effectively improved, and accurate supply and flow direction control of the process gas are achieved. The turbine blade is fully wrapped by the gas collection box, and the exhaust holes are formed in the lower portion of the gas collection box, so that process gas circulates in the gas collection box, the gas can be guided to fully infiltrate all the surfaces of the blade and complex blind cavity parts, and the uniformity of codeposition of an aluminide coating is guaranteed. The whole structural design is matched with the technological characteristics of CVA440BL-T type CVD equipment, deformation is small in the long-term high-temperature and strong-corrosion environment, stability and consistency in the deposition process are maintained, and the problem of deposition of coatings on the surfaces of complex inner cavities and flow channels of turbine blades is effectively solved.
Owner:AECC AVIATION POWER CO LTD

Hydraulic engineering safety design parameter correction method based on big data service

The invention discloses a hydraulic engineering safety design parameter correction method based on big data service, and relates to the field of hydraulic engineering, and the method comprises the steps: building a plan splitting platform and a design safety value map, and calculating a design safety offset through the design safety value map; the plan splitting platform splits the security target data to form multiple stages of design data; forming collaborative design demand data containing priority weights; introducing a plurality of engineering design priority weights to obtain collaborative design data; and comparing the initial design parameter data with a triggering parameter correction step to obtain a final design plan parameter. Through constructing a three-dimensional design safety value map, space-time visual monitoring of cross-engineering production nodes is realized, and then an engineering personalized regulation factor is introduced, so that the accuracy of key node offset early warning is effectively improved, and meanwhile, through a design replacement mode, abnormal design is modified, so that quantitative decision is automatically realized.
Owner:NANJING ZECHUN WATER ENGINEERING CO LTD

Mountainous region small module vertical lifting well drilling and workover rig

The invention belongs to the field of drilling and production engineering equipment, particularly relates to a mountain small-module vertical lifting well drilling and workover rig, and aims to solve the problems that the transverse and longitudinal spans of a base of an existing conventional drilling machine are large, the wellhead spacing width of a production well is limited, the operation space is small, and a conventional-scale drilling machine cannot be arranged for workover operation; and the area of a well site is limited, and a conventional forward-tilting type overall lifting well drilling and workover rig cannot be used. The device comprises a derrick and a base, the derrick is installed in the base and comprises a derrick body and a lifting device, the two ends of the derrick body are fixed to the crown block and the base respectively, and the lifting device is fixed to the base and used for lifting the derrick body. The device is convenient to transport, meets the size requirement of cross-over workover operation of a cluster well, adopts a segmented vertical lifting installation mode, reduces the requirement for the well site area of drilling operation, and is more convenient for implementation of drilling and workover operation.
Owner:CNPC BOHAI EQUIP MFG +1

Small-diameter fracturing pipe column suitable for small-pocket well

The invention relates to the technical field of oil field oil production engineering, in particular to a small-diameter fracturing pipe column suitable for a small pocket well. The problems that an existing fracturing pipe column cannot fracture a small pocket sleeve to damage a well, movement cannot be opened after fracturing, stability is poor, and lifting of the pipe column is abnormal are mainly solved. The lower end of the oil pipe (2) is connected with a hydraulic anchor (4) through a safety connector (3), the lower end of the hydraulic anchor (4) is connected with a plurality of sliding sleeve sand blasters (4), the positions of the sliding sleeve sand blasters (4) on a pipe column correspond to all fractured layers respectively, and a sliding sleeve seat (5) is arranged below each stage of sliding sleeve sand blaster (4). The bottom of the sliding sleeve seat (5) at the lowest end is connected with a sand blower (6) without a sliding sleeve, and the sand blower (6) without the sliding sleeve corresponds to the fractured layer at the lowest end. The small-diameter fracturing tubular column of the small-pocket well can adapt to a casing damage well with a fracturing pocket larger than 3 m, the ultra-large sand adding scale can be achieved under the large displacement condition, and remaining oil of the small-pocket well can be effectively used.
Owner:DAQING OILFIELD CO LTD +1

A rope suspension device for a pumping unit

The present application relates to oilfield production engineering technical field, especially a kind of for beam-pumping unit's suspension rope device.Mainly solve the problem that the load of some beam-pumping unit traction rope is large and affects traction rope life-span.Problem.It includes weight reduction device (3), the weight reduction device (3) includes pulley assembly (31), pulley assembly (31) includes main pulley (312) and installation shaft (311), wherein main pulley (312) is connected in the outside of installation shaft (311), and the lower end of installation shaft (311) is connected with intermediate shaft (313) by connecting rod (314);The traction rope (6) is fixed in the inside of main pulley (312) after passing through main pulley (312), and the upper end of wellhead suspension rope device (2) is connected wellhead traction rope, and wellhead traction rope is connected on intermediate shaft (313).The suspension rope device can greatly reduce the load borne by traction rope, thereby prolonging the service life of traction rope, reduce the loss caused by the breakage of traction rope.
Owner:DAQING OILFIELD CO LTD +1

Multi-station carrying, transferring and precise positioning driving line

The invention discloses a multi-station carrying, transferring and precise positioning driving line, and belongs to the technical field of factory mechanical equipment and automatic production, the multi-station carrying, transferring and precise positioning driving line comprises a plurality of stations, the stations are connected in sequence, tool plates are arranged on the stations in the length direction of the driving line in a sliding mode, and multiple sets of module driving assemblies are arranged on the stations; the multiple groups of module driving assemblies are arranged in the length direction of the driving line; a clamping point is fixedly arranged at the bottom of the tool plate, and the module driving assembly comprises a clamping assembly used for clamping the clamping point on the tool plate and a first driving piece used for driving the clamping assembly to move. The large-stroke precise displacement requirement is met, so that the displacement deviation is reduced, and the influence on precise engineering production and manufacturing is reduced.
Owner:SUZHOU XINHAOCHENG INTELLIGENT TECH CO LTD

Apparatus having a protective envelope, use thereof, and method for operating a room region

The invention is an apparatus having a protective envelope which is designed and constructed to envelope at least one room region, such that the protective envelope is able to separate the at least one room region from an environment immediately surrounding the protective envelope, and use thereof. Methods for operating a production engineering unit under cleanroom conditions and for creating and operating a virus-free and cross-contamination free room region surrounded by a protective envelope for accommodating persons and / or objects subject to quarantine. The invention has a protective envelope with at least two layers separated by a spacer layer, that is flow-permeable.
Owner:FRAUNHOFER GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG EV

Rapid testing device for pressure bearing and dissolution of soluble rubber cylinder

The invention relates to the technical field of oil field oil production engineering, in particular to a soluble rubber cylinder pressure-bearing and dissolution rapid inspection device which comprises an upper connector, the top end of the upper connector is connected with a connector of a pressurizing pump, the lower end of the upper connector is connected with a pushing body, a simulation sleeve is installed between the upper connector and the pushing body, and the lower end of the pushing body is connected with a central pipe and an upper connecting body. The central pipe is connected with the upper connector, the lower end of the upper connector is connected with the rubber sleeve assembly, the lower end of the rubber sleeve assembly is connected with the adjustable push-down bodies, the adjustable push-down body at the tail end is connected with the simulation sleeve, the lower end of the simulation sleeve is connected with the real-time locking ring, the inner side of the real-time locking ring is detachably connected with the central pipe, and the pressurizing pump starts pressurizing through the pressing connector. The pushing body is pushed by the pressure of the pressurizing pump to move forwards, the pushing body drives the central pipe to move, the central pipe compresses the rubber sleeve assembly, the real-time locking ring is screwed in synchronously, and the central pipe is locked by the real-time locking ring. The device provided by the invention is simple in structure and convenient to operate, the test time is saved, and the detection efficiency is greatly improved.
Owner:DAQING OILFIELD CO LTD +1

A card distance elongation adjuster for oil and gas well fracturing

PendingCN122328078AAdapt to the requirements of fine transformationRealize card distance transformationThermodynamicsScrew thread
This invention relates to the field of oil and gas field production engineering technology, and particularly to a clamping distance adjustment device for oil and gas well fracturing. It mainly solves the problem that existing fracturing systems can only connect to one clamping distance per trip, making well and layer selection difficult. The clamping distance adjustment device for oil and gas well fracturing includes an upper connector (1), the lower end of which is connected to a central tube (4). The central tube (4) is externally slidably connected to an outer sleeve (5). The lower end of the central tube (4) is internally threaded with a spring claw (7). The external boss of the spring claw (7) engages with the internal boss on the inner wall of the outer sleeve (5). A sliding sleeve (8) is provided inside the spring claw (7). A lower connector (9) is provided at the lower end of the spring claw (7). The sliding sleeve (8) and the lower connector (9) are connected by a shear pin (11). This clamping distance adjustment device for oil and gas well fracturing can be connected to the fracturing tubing string and can adjust the clamping distance even without raising the tubing string downhole, adapting to changes in reservoir thickness and enabling efficient development of thin and poor reservoirs.
Owner:DAQING OILFIELD CO LTD +1

Sheet metal production engineering data automatic compilation system based on industrial automation

The invention discloses an industrial automation-based sheet metal production engineering data automatic compilation system, which comprises a data acquisition module, a data preprocessing module, a feature extraction module, an engineering data compilation module, a database module and a data output module, the data acquisition module is in communication connection with the sheet metal raw material detection equipment, the product design terminal, the production equipment and the production data recording device and is used for acquiring sheet metal raw material parameters, product design parameters, production equipment parameters and historical production data. According to the sheet metal production engineering data automatic compilation system based on industrial automation, various data related to sheet metal production are comprehensively acquired through the data acquisition module, and accurate and effective data support is provided for engineering data compilation in combination with data preprocessing and feature extraction technologies; and by utilizing a machine learning model and a preset process rule in the engineering data compiling module, automatic compiling of sheet metal production engineering data is realized, and a large amount of manual intervention is not needed.
Owner:JIANGSU SHINDAO INTELLIGENT EQUIP CO LTD

Method for predicting service life of coiled tubing under cooperation of plasticity and damage

The method for predicting the service life of the coiled tubing under the cooperation of plasticity and damage is characterized in that the fatigue service life and the strain amplitude under the specific curvature radius are obtained through a full-size bending fatigue test, and the fatigue service life and the strain amplitude are substituted into a Manson-Coffin model to invert an unknown coefficient; the method comprises the following steps: determining mechanical parameters of a material in combination with a uniaxial tensile test, constructing a finite element mechanical model, carrying out finite element simulation on bending working conditions of a damaged coiled tubing on a roller and a guider, extracting strain amplitudes, and further establishing strain amplitude calculation models under different working conditions by adopting a Levenberg-Marquardt algorithm; coupling the model with a Manson-Coffin equation, and respectively constructing fatigue life prediction models of the roller and the guider; and on the basis of the Miner theory, three times of bending cycles with different curvatures in one trip are regarded as complete load cycles, an accumulated damage value is calculated, a correction coefficient is determined through low-cycle fatigue finite element simulation, a calculation model of the number of remaining trip times is established, and quantitative prediction of the remaining life is achieved. The method is suitable for the technical field of petroleum and natural gas drilling engineering.
Owner:SOUTHWEST PETROLEUM UNIV

Construction method for unloading platform of fabricated high-rise residence

The invention relates to the field of unloading platform construction, and discloses an assembly type high-rise housing unloading platform construction method which is applied to the assembly type high-rise housing main body structure construction process, an overhanging type unloading platform is arranged on an outer wall of a living hall of each floor of a residential building, and the implementation process is carried out in four stages. Comprising the following steps: a first stage: prefabricating and producing laminated slabs reserved with anchoring holes in batches at the background of a factory; in the second stage, laminated slab installation and cast-in-place layer shelving points, pulling points and supporting points are pre-buried at the front stage of the construction site; a third stage: assembling and putting the unloading platform into use; and a fourth stage, platform dismantling and preformed hole and embedded part processing are carried out, placing points, pulling joints and supporting points of the platform are all arranged on a stable main body structure (such as a shear wall outer wall frame beam), and through reliable connection, hidden dangers listed in the Municipal Engineering Production Safety Major Accident Potential Determination Standard of House Municipal Engineering Production Safety are effectively avoided.
Owner:CHINA RAILWAY CONSTRUCTION BRIDGE ENGINEERING BUREAU GROUP FOURTH ENGINEERING CO LTD +1

Interactive, intelligent production and maintenance execution agent

PCT designated stageWO2025238647A1FinanceResourcesSoftware engineeringWorkstation
Methods and systems are provided for scheduling and issuing interactive instructions for manufacturing of a product and product sub-assemblies. A project production engineering knowledge base including an interactive production portfolio is accessed, and a workplan specifying target times for completing one or more of the product and sub-assemblies is received. Responsively, a schedule for performing the assigned flow of steps (FOS) of each workstation is generated to meet FOS requirements of related tasks at other workstations. The assigned FOS is then provided at each workstation at the scheduled time, with feedback from each workstation indicative of completion of each step. The feedback is verified to before each subsequent instruction of the FOS is provided to the given workstation.
Owner:PROMAI LTD

A prediction method for the liquid-solid erosion-corrosion initiation mechanism of oil well tubing based on micro-potential testing

A prediction method for the liquid-solid erosion-corrosion initiation mechanism of oil well tubing based on micro-potential testing, characterized by using the correlation between fluid hydrodynamics and the mechanical properties of the corrosion product film, based on fracture mechanics and fluid dynamics theories, combining micro-potential technology, wavelet analysis method and fluid dynamics theory to test and characterize hydrodynamic parameters such as wall shear stress, diffusion current density, current noise, freak wave energy density and flow intensity of the liquid-solid two-phase flow of oil well tubing, using acoustic emission technology, nano-indentation technology, piston suction method and fracture mechanics theory to test and characterize the mechanical properties such as fracture strength, film-substrate bonding strength and elastic modulus of typical corrosion product films, comprehensively analyzing the magnitude relationship between the maximum flow intensity and wall shear stress and the fracture strength and film-substrate bonding strength of the corrosion product film, and judging the liquid-solid two-phase flow erosion-corrosion initiation mechanism. The present invention is applicable to the technical field of oil and gas drilling and production engineering.
Owner:SOUTHWEST PETROLEUM UNIV

A method and system for generating global optimization of engineering plan based on multi-objective ant colony algorithm

This invention relates to the field of construction engineering technology, specifically to a method and system for global optimization generation of engineering plans based on a multi-objective ant colony algorithm. The method includes initializing engineering and algorithm parameters, employing a non-uniform pheromone initialization strategy, constructing engineering activity paths based on an improved state transition probability formula, calculating path adaptability through a multi-objective fusion fitness function, iteratively optimizing using a dual pheromone update strategy (local and global), and outputting the optimal solution after verification and correction. The system adopts a modular design, supporting the entire process of method implementation. This invention achieves multi-objective collaborative optimization of schedule, cost, and resource utilization, improves algorithm convergence speed and optimization accuracy, adapts to various scenarios such as construction engineering and production line debugging, reduces implementation difficulty, provides reliable technical support for the efficient advancement of engineering plans, and possesses strong industrial application value.
Owner:SHANGHAI WANGSHENG INFORMATION TECH CO LTD

Remote automatic burning method, device, equipment and medium

The invention relates to the technical field of chip burning, in particular to a remote automatic burning method, device and equipment and a medium. The remote automatic burning method is applied to an upper computer, a circuit board identifier of a burning circuit board is obtained through the upper computer, an identification request is sent to a production and manufacturing integrated system according to the circuit board identifier, and a feedback result returned by the production and manufacturing integrated system is received; analyzing the feedback result to obtain a target software material number of the to-be-burned software, receiving a burning file sent by the software version management system and a configuration file corresponding to the burning file according to the target software material number, and generating a burning command script according to the burning file and the configuration file; and determining a burning simulator, and controlling the burning simulator to execute the burning command script for burning. The burning process is controlled through the upper computer, management and control of production engineers are not needed, the production engineers do not make direct contact with burning files, the risk of poor burning caused by manual operation is reduced, and the reliability of chip burning is improved.
Owner:SHENZHEN POWEROAK NEWENER CO LTD

Generative ai agents for production engineering in oil and gas

A method for performing production engineering tasks includes receiving a question or instruction related to an oil and / or gas industry. The question or instruction is received by a large language model (LLM) agent. The method also includes selecting one or more tools from a plurality of tools using the LLM agent based upon the question or instruction. The tools include a data tool, a retrieval augmented generation (RAG) tool, a simulation tool, and an analytical tool. The method also includes generating output data related to the question or instruction using the one or more identified tools. The method also includes generating a response to the question or instruction using the LLM agent based upon output data.
Owner:SCHLUMBERGER TECH CORP