36results about How to "Guide development" patented technology

The invention discloses a method and a system for rapidly analyzing the remaining oil of a fracture-vuggy type reservoir, which comprises the following steps of: establishing a mathematical model of the fracture-cavity type reservoir; dividing fractured-vuggy reservoir into grid units and numerical model is established based on mathematical model. The numerical model is solved iteratively and theremaining oil is analyzed according to the distribution of fluid pressure and saturation used to describe fractured-vuggy reservoir. In each iterative step of solving the numerical model, the pressureequation of oil phase is extracted from the numerical model based on the characteristics of the grid element; Processing the oil phase pressure equation based on an algebraic multigrid algorithm to obtain a first pressure value; a first pressure value is used as an initial solution when iterating the numerical model. By using this method, the remaining oil in fractured-vuggy reservoir can be analyzed quickly and effectively.

The invention provides a carbonate reservoir rock classification method. The method comprises the following steps: extracting a pore throat radius parameter reflecting reservoir quality from a mercury injection capillary pressure curve of each to-be-classified reservoir rock; based on an image processing technology, extracting pore characteristic parameters reflecting pore types from each casting body slice of the each to-be-classified reservoir rock; performing principal component analysis on the pore characteristic parameters, and extracting a first principal component parameter; and performing clustering analysis on all the pore throat radius parameters and all the first principal component parameters to obtain a plurality of categories of reservoir rocks. The parameters extracted from various rock core scales, such as the pore throat radius parameter and the pore feature parameter, are integrated to classify the rock, the relationship among geology, rock physics and microscopic slice data is balanced, the rock reservoir classification process gives consideration to macroscopic and microscopic scales, reservoir geological cause connotation can be revealed to achieve a prediction effect. And the reservoir reservoir and oil and gas production capability can be determined to guide oil and gas reservoir development.

The invention provides a method for positioning, evaluating and analyzing abnormal sound of a whole vehicle, which comprises an evaluation step and a scoring processing part. The evaluation step comprises the substeps of preparing an evaluation vehicle, preparing an abnormal sound evaluation road when the vehicle enters a test field, collecting abnormal sound of a vehicle road, and recording eachabnormal sound problem of the vehicle. The scoring processing part comprises steps of scoring each abnormal sound problem of the vehicle on different abnormal sound roads, calculating the total scoreof the single abnormal sound problem of the vehicle, calculating the sum of scores of all abnormal sound problems of the vehicle, and recording the score of a single abnormal sound problem of the vehicle and the total score of all abnormal sound problems. According to the vehicle abnormal sound evaluation method provided by the invention, the overall abnormal sound performance level of the vehiclecan be seen, and the distribution of the vehicle abnormal sound can be displayed according to the abnormal sound problem of the vehicle, specifically which part on the vehicle is reflected.

The invention provides experimental simulation equipment used for a fissure cave type reservoir chamber. The experimental simulation equipment used for the fissure cave type reservoir chamber comprises a hydraulic circuit. The hydraulic circuit comprises a first branch circuit used for an oil-water mixture, a second branch circuit used for oil, a third branch circuit used for water, an oil-water separating device, an experimental section, a pump assembly and a data processing module. One ends of the first branch circuit, the second branch circuit and the third branch circuit are connected with the oil-water separating device, and the other ends of the first branch circuit, the second branch circuit and the third branch circuit are connected with the experimental section. By adoption of the experimental simulation equipment used for the fissure cave type reservoir chamber, two-phase flow of oil and water in a reservoir can be well simulated.

The invention relates to a method and a system for recovering a sedimentary ancient landform of a karst denudation interface, and equipment. The method comprises the steps of: acquiring ancient landform recovery data of a target karst region, wherein the ancient landform recovery data comprises the impression stratum thickness and the residual stratum thickness; acquiring the relative original stratum thickness according to the impression stratum thickness and the residual stratum thickness; judging whether a residual stratum is influenced by deposition or not, and if so, correcting the relative original stratum thickness to obtain a sedimentary ancient landform value; and recovering a sedimentary ancient landform plane according to the sedimentary ancient landform value. By adopting the method and the system, the deposition information shown in the ancient landform can be extracted, so that a more comprehensive ancient landform recovery result can be conveniently obtained, and exploration and development work of karst type oil and gas reservoirs can be better guided.

The invention relates to a method and device for establishing a lymph node prediction model, a medium and equipment. The method comprises the steps: obtaining an inspection result comprising N observation indexes, and marking the inspection result according to the actual result; performing statistical analysis on the marked inspection result, and determining M observation indexes related to the actual result from the N observation indexes; and establishing a prediction model based on the M observation indexes. Through statistical analysis performed on a large number of inspection results, observation indexes related to actual results are found out, a prediction model is established based on the observation indexes related to the actual results, and then, the prediction model is used for analyzing and predicting subsequent examination results, so that the accuracy in judgment of the inspection results can be improved, and the formulation of a clinical treatment scheme can be more effectively guided.

The invention provides a method for predicting the oil content of a shale oil reservoir. The method comprises the following steps of 1) calculating the organic carbon content of the shale oil reservoir; 2) calculating the organic carbon content of a non-coring well or a layer section; 3) testing the oil content according to a core to obtain a relation between the oil content and the organic carbon content; 4) fitting out a relationship between the oil content and a logging sensitive parameter; 5) according to well area VSP data, acoustic logging data of well logging while drilling or production logging and transverse wave logging data, calculating a longitudinal and transverse wave speed ratio, and identifying the fluid properties of the reservoir; 6) identifying a low-resistivity oil layer; 7) performing interpolation calculation on the calculated single-well oil content and organic carbon; and 8) calculating and drawing a regional oil content distribution map according to the constraint and the false values of the removed oil content and organic carbon. According to the method, the oil content of the shale oil reservoir can be predicted, the oil content range and the oil content boundary of an oil-containing area can be described, drilling of infill wells or new wells in an old well area can be guided, and the drilling rate of the reservoir is improved.

The invention discloses a method and instrument for estimating the welding performance of steel containing titanium and niobium elements and application of the method. A carbon equivalent correction formula CEs, C<eq>s and P<cm>s increases the negative influence of Ti and Nb on the carbon equivalent, is used for optimizing the chemical components of the microalloy high-strength steel, predicting the hardness of a welding heat affected zone, setting the welding preheating temperature and avoiding welding cracks, and is suitable for design, development and application of microalloy high-strengthsteel and ultrahigh-strength steel products. According to the carbon equivalent estimation method, the hardness value and softening tendency of a welding area can be predicted more accurately, variety development is guided, and the welding process is formulated.