6 results about "Saturation index" patented technology

The invention discloses a residential district spring water direct drinking pipe network hydraulic model construction and optimization design method. According to the method, a pipeline roughness coefficient slow-varying trend component is predicted based on a Langelier saturation index and a scaling rate physical equation, and a fast-varying disturbance component is extracted through variational mode decomposition, so that parameter multi-scale decomposition is realized; a physical information neural network is used as a hydraulic positive problem agent solver, whole-network hydraulic state parallel reasoning is completed within 50 milliseconds, and meanwhile an accurate analysis Jacobian matrix is obtained at zero extra cost through automatic differential; bayesian statistical fusion of multi-sensor observation and parameter estimation is realized through sparse ensemble Kalman filtering based on a pipe network observability coefficient, and pipeline roughness coefficient posterior probability distribution is output. According to the invention, parameter real-time calibration completely synchronous with the acquisition period of the sensor is realized, and the consumption of computing resources is reduced by more than 80%; water quality-hydraulic power double safety constraints are embedded; and whole-network high-precision state estimation under 20% of sensor coverage rate is supported.

The invention discloses a self-adaptive strategy generation method and system for enrollment propaganda, and the method comprises the steps: obtaining the multi-modal behavior data of a target examinee at the current moment, and constructing an examinee cognitive state vector; according to the cognitive state vector of the examinee, calculating a cognitive saturation index and an effectiveness attenuation factor; then constructing an instantaneous enrollment utility function; representing the enrollment propaganda strategy as a strategy vector containing propaganda frequency, a propaganda medium form and a propaganda content theme, and establishing a strategy evolution differential equation for the strategy vector based on the instantaneous enrollment utility function; and performing cross-channel collaborative optimization on the evolved strategy vector to minimize a collaborative excitation function formed by content similarity and time overlapping degree between channels, and generating a final propaganda strategy. By constructing a continuous adaptive strategy generation mechanism fusing cognitive saturation, a competitive attenuation effect and cross-channel collaborative constraint, the accuracy, collaboration and conversion efficiency of college enrollment propaganda are remarkably improved.

The invention discloses a method, a medium and equipment for evaluating the gas-bearing property of a complex-configuration compact sandstone gas reservoir, and relates to the technical field of geophysical logging evaluation. The method mainly comprises the following steps: obtaining a porosity index factor and a saturation index factor according to the porosity of a compact sandstone sample, the resistivity of an anhydrous sample and the resistivity of a saturated sample; obtaining continuous gas saturation according to the resistivity curve, the porosity index factor and the saturation index factor; according to the to-be-evaluated horizon depth and the continuous gas saturation, obtaining an evaluation index of the logging gas-bearing property; and performing normal distribution fitting by utilizing frequency analysis according to the evaluation index of the gas-bearing property of the well logging to obtain a gas-bearing property evaluation result of the sandstone gas reservoir. By implementing the method, the medium and the equipment for evaluating the gas-bearing property of the compact sandstone gas reservoir with the complex configuration, the diversity of gas-bearing property distribution in the complex reservoir can be better reflected, and the development efficiency and accuracy of the compact gas reservoir are improved.

The application provides an intelligent water quality prediction and regulation method in a power plant descaling process, and relates to the technical field of water quality prediction, and specifically comprises the following steps: collecting data recorded during chemical cleaning and descaling of a boiler of a power plant and performing data preprocessing to construct a power plant descaling water quality data set; introducing a local fluctuation suppression weight, a water temperature deviation adjustment weight, a reagent mutation suppression factor and a time decay weight to generate an enhanced delay vector; constructing a global state vector through a covariant weight and a direction perception expression; combining the global state vector, a reagent change amount and a temperature deviation to form a prediction input, adopting a heteroscedastic robust task loss based on a Huber loss and an uncertainty factor for optimization, and finally realizing multi-step prediction of a pH value, a Langelier saturation index, a calcium ion concentration, a silicate radical concentration, a conductivity and a turbidity in the next 15 minutes.

The invention discloses a method for determining a cementation index and a saturation index of a carbonate reservoir, and relates to the technical field of well logging data computation.The method comprises the steps that whether reference data exist in the carbonate reservoir to be judged or not is determined, and according to the determined result, the cementation index and the saturation index of the carbonate reservoir are determined; selecting a cementation index calculation scheme corresponding to the determination result to estimate the cementation index to obtain a cementation index estimation result; or determining the target porosity of the carbonate reservoir to be determined, and determining a target cementation index corresponding to the target porosity according to the corresponding relationship between the porosity and the cementation index; and according to the determination result, selecting a saturation index calculation scheme corresponding to the determination result to estimate the saturation index so as to obtain a saturation index estimation result. According to the method, the problem of inaccurate calculation of the oil and gas saturation in carbonate reservoir oil and gas reservoir evaluation is solved, and high-precision calculation parameters are provided for carbonate reservoir evaluation and reserve calculation.