Abstract: The invention provides a continuous preparation method of 2,3,3,3-tetrafluoropropene, comprising the following steps: carrying out liquid-phase catalytic telomerization reaction on ethylene and carbon tetrachloride serving as initial raw materials in the presence of a composite catalyst to obtain a reaction product; performing two-stage membrane separation and purification on the reaction product, and then sequentially performing a primary high-temperature cracking reaction, a gas-phase chlorination reaction, a secondary high-temperature cracking reaction, a primary gas-phase catalytic fluorination reaction and a secondary gas-phase catalytic fluorination reaction to obtain a reaction product; condensing and rectifying the secondary gas-phase catalytic fluorination reaction product to obtain the 2,3,3,3-tetrafluoropropene product.

Abstract: An accessible processing method of webpage contents and accessible webpage device are provided. The foregoing accessible processing method may include the follows. A document outline list tag is added to a webpage. After the document outline list tag obtains a focus, the following is further included. All title tags of a specified level in current webpage may be traversed. An anchor point may be added to each title tag of the specified level. Text information of each title tag of the specified level may be respectively copied to a corresponding link newly established. The link newly established may be enabled to point to an anchor point of a corresponding title label. Each link newly established may be taken as a list item. The list item may be added to the document outline list tag.

Abstract: An accessible processing method of webpage contents and accessible webpage device are provided. The foregoing accessible processing method may include the follows. A document outline list tag is added to a webpage. After the document outline list tag obtains a focus, the following is further included. All title tags of a specified level in current webpage may be traversed. An anchor point may be added to each title tag of the specified level. Text information of each title tag of the specified level may be respectively copied to a corresponding link newly established. The link newly established may be enabled to point to an anchor point of a corresponding title label. Each link newly established may be taken as a list item. The list item may be added to the document outline list tag.

Abstract: The disclosed methods, systems, and software are described to optimize fracture characteristics and simulate fluid flow rates in a well model. The well model, which includes at least one fracture intersecting a production well, is generated with static and dynamic data. Fluid flow in the well model is simulated to obtain simulated fluid flow rates between fractures and the well. Fracture properties, such as length, height and aperture, are then updated responsive to measured and simulated fluid flow rates. Multiple simulation runs and updating of the fracture properties can be performed until the simulated fluid flow rates converge with the measured fluid flow rates. Pressure data can be used to determine gridblock permeability, which in turn helps constrain the model, thus providing more reliable fracture properties. Uncertainty ranges of the fracture properties can also be calculated.

Abstract: The disclosed methods, systems, and software are described to optimize fracture characteristics and simulate fluid flow rates in a well model. The well model, which includes at least one fracture intersecting a production well, is generated with static and dynamic data. Fluid flow in the well model is simulated to obtain simulated fluid flow rates between fractures and the well. Fracture properties, such as length, height and aperture, are then updated responsive to measured and simulated fluid flow rates. Multiple simulation runs and updating of the fracture properties can be performed until the simulated fluid flow rates converge with the measured fluid flow rates. Pressure data can be used to determine gridblock permeability, which in turn helps constrain the model, thus providing more reliable fracture properties. Uncertainty ranges of the fracture properties can also be calculated.

Abstract: A three-dimensional hybrid reservoir model representative of a fractured subterranean reservoir is created for simulating fluid flow. The model includes porous matrix blocks and a network of long fractures, which include two-dimensional fracture blocks, that ideally overly and are fluidly connected to the matrix blocks. To simulate fluid flow, matrix and fracture flow equations are obtained and effective fluid flow transmissibilities are determined. The matrix and fracture flow equations are then coupled via the effective fluid flow transmissibilities, such that they can be solved simultaneously for flow responses. The long fractures can be in direct fluid communication with one or more intersecting wells or other fractures. These intersections can be modeled as a point source to enhance numerical stability during simulation.

Abstract: The present invention includes a method, system and apparatus for simulating fluid flow in a fractured subterranean reservoir. A three-dimensional hybrid reservoir model representative of a fractured subterranean reservoir is created. The model includes porous matrix blocks and a network of long fractures overlying the matrix blocks. The networks of long fractures include two-dimensional fracture blocks. Matrix and fracture flow equations for fluid flow in the matrix and fracture blocks are obtained. The effective fluid flow transmissibilities between the matrix blocks and the fracture blocks are determined. The matrix and fracture flow equations are coupled via the effective fluid flow transmissibilities. The matrix and fracture flow equations are then solved simultaneously for flow responses. Two-dimensional fracture blocks are used which ideally overly and are fluidly connect to underlying matrix blocks. The long fractures may be in direct in fluid communication with one or more intersecting wells.