13 results about "Engineering production" patented technology

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.

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.

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.

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.

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.

The utility model relates to the field of oil industry production engineering, disclose a short rubber tube liquid self -expanding packer. Including the central pipe, the upper joint is connected to the central pipe upper end, the outer wall of central pipe is sleeved with packer seal self -expanding rubber tube, the packer seal self -expanding rubber tube includes the skin bowl, the water -swelling rubber tube and the cone that are sequentially sleeved on the outer wall of central pipe, the upper joint is connected with the skin bowl, be provided with the unsealing peg on the cone. The utility model forms the initial sealing barrier when the skin bowl is tightly attached to the well wall under the pressure, the volume expansion after the water -swelling rubber tube meets the liquid, fills the possible fine gap between the skin bowl and the well wall, forms double seal with the skin bowl, the maximum radial expansion of rubber is obtained in the combination of both, thereby guarantees the effective expansion sealing effect under the minimum rubber tube length, the sealing performance of packer is improved significantly, reduces the abnormal situation of setting because of the unreasonable structure, simplifies the operation process.

The invention belongs to the technical field of oil and gas field development, and provides a model library construction method based on digital twin injection-production engineering. Comprising the steps of integrating an injection-production engineering physical entity model, reconstructing a physical three-dimensional model of a physical entity, defining attributes of the physical three-dimensional model, embedding a formula algorithm, developing an interface, realizing data interaction and visual modeling, and displaying a production state. Boundary conditions are defined based on the physical three-dimensional model, simulation software is imported to form a simulation model, the accuracy of the simulation model is verified through comparison with actual data, and an interface is constructed for a user to operate and test the injection-production process; packaging to form a directly called engineering application component, a feature engineering component and a tool component supporting knowledge reuse; and integrating a plurality of injection-production engineering optimization algorithms by utilizing an algorithm interface, and constructing a water injection optimization and oil production quantity dynamic regulation and control model in combination with empirical rules and optimal practices of an injection-production process. According to the invention, an injection-production engineering digital twinborn model library which can realize efficient modeling, accurate simulation and optimization and a flexible and extensible system is established.

The utility model relates to the field of uplift pile structure, specifically disclose a kind of uplift pile for power transmission and transformation engineering production, including uplift pile, steel structure column, side limiting piece;The opening is arranged on the top of uplift pile, and the pouring cavity is arranged inside the opening, the pile head is arranged on the bottom of uplift pile, and the pile head is conical structure, the side slot is arranged on the bottom of uplift pile side face, the side limiting piece is arranged in side slot, the bottom of pouring cavity in uplift pile is provided with the inclined plane of propulsion, the inclined plane of propulsion middle bottom position is provided with thread groove, the steel structure column is arranged in uplift pile, the reinforcing plug-in pile is arranged on the bottom of uplift pile, the pile ring is arranged on the reinforcing plug-in pile, and the pile ring is arranged in pouring cavity inside, the plug-in slot is arranged on the bottom of uplift pile;The uplift pile provided in the utility model for power transmission and transformation engineering production has very strong pullout effect, and the subsequent steel structure column and reinforcing plug-in pile are improved structural strength after the convenient installation of uplift pile.

This application discloses a turbine blade strength design method and system, belonging to the field of blade strength design technology. The turbine blade strength design method includes the following steps: establishing a blade airfoil model, wherein the center of the stacking axis of the blade in the airfoil model coincides with the centroid of the blade; determining and obtaining the execution tolerance of the blade based on the airfoil model; establishing a tolerance influence assessment calculation model based on the execution tolerance; and optimizing the blade airfoil model based on the tolerance influence assessment calculation model. This improves the accuracy of determining and obtaining the execution tolerance, and enables theoretical analysis of the execution tolerance of the blade airfoil during forward design. It avoids the problem that the execution tolerance influence exceeds the reserve coefficient required by the blade design criteria during actual production, reduces the risk of fatigue fracture of the blade, improves the actual life of the blade, and ensures that the strength of the turbine blade meets the actual requirements of strength design and engineering production.

This invention discloses a method for accurately calculating the opening degree of a fluid control valve based on numerical simulation, relating to the field of oil and gas exploration and development technology. The method includes the following steps: establishing a simplified numerical simulation model of the fluid control valve and obtaining fluid rheological parameters; simulating the oil and gas production of a single-layer fluid control valve under different pressure differentials and evaluating its throttling performance; using a horizontal throttling orifice to simulate the pressure drop in the horizontal section of a multi-layer fluid control valve; establishing a numerical simulation model of the multi-layer fluid control valve; analyzing the influence of different valve distances, different formation pressures, and the opening degree itself on the opening degree; and programming the relationship between valve distance, pressure differential, and opening degree to obtain the throttling orifice opening size under balanced production conditions. This invention is simple and effective, with high reliability and feasibility, providing a concept and reference for practical production engineering.

The application discloses a kind of geotechnical engineering knowledge graph construction method and software system, and software system includes geotechnical engineering knowledge graph.The construction method of geotechnical engineering knowledge graph includes: it is composed of resource library, knowledge base and the association between the two.It includes: based on the construction of resource library and relationship professional terminology;Knowledge is coded as the operation unit that can be independently run, forms knowledge base;With the scope of operation unit as index, input and output is associated with resource library terminology, and the knowledge graph that adapts to multiple scenarios is constructed;It is used as the data layer of B / S architecture software system, supports the engineering application of executable intelligent agent.Geotechnical engineering knowledge graph is artificial intelligence combined with geotechnical engineering production practice needs to strictly follow the knowledge and experience of regulation specification and the like form special artificial intelligence technology, is the specific composition and form of knowledge-driven geotechnical engineering intelligent agent, and industrialization application is realized through software system, and plays the role of knowledge and experience equalization.

This invention relates to the field of steel structure engineering production technology, and proposes a positioning and clamping mold for punching angle steel in power distribution networks. The mold includes a supporting body with an inlet and an outlet on each side. Support wheels for supporting the angle steel are installed on the sides of the inlet and outlet adjacent to each other. A clamping structure is located in the middle of the supporting body. The clamping structure includes a lowering mold slidably connected to the supporting body, and a supporting mold that cooperates with the lowering mold is located in the middle of the supporting body. This invention effectively solves the problems of existing clamping devices requiring adjustment via screws and bolts, which cannot automatically adjust to fit the angle steel according to its thickness and width. Furthermore, when drilling angle steel, the drilling pressure causes hole wall protrusions on the hole surface, compromising the original dimensional accuracy and leading to installation deviations. This invention can adaptively adjust the clamping of angle steel of different sizes, greatly improving the quality of the finished product.