Abstract: There is disclosed in the present disclosure a seismic full horizon tracking method, a computer device and a computer-readable storage medium. The method includes: acquiring three-dimensional seismic data; extracting horizon extreme points from the three-dimensional seismic data to construct a sample space; equally dividing the sample space into a plurality of sub-spaces with overlapping portions, and performing a clustering process on the horizon extreme points in each sub-space to obtain horizon fragments corresponding to each horizon of the three-dimensional seismic data; establishing a topological consistency between the horizon fragments; and fusing the horizon fragments corresponding to each horizon of the three-dimensional seismic data based on the topological consistency, to obtain a full horizon tracking result of the three-dimensional seismic data.

Abstract: The present disclosure discloses a method for identifying a boundary of a sedimentary facies, a computer device and a computer readable storage medium. The method comprises: acquiring a preliminary marked result of the sedimentary facies in a seismic attribute map; acquiring a color-based K-means classification result of the seismic attribute map by using a maximal between-cluster variance and a K-means clustering; acquiring a super-pixel classification result of the seismic attribute map according to a SLIC super-pixel segmentation; and performing a region growing fusion on the super-pixel classification result by taking the preliminary marked result and the K-means classification result as constraints, to determine an identification result of the boundary of the sedimentary facies in the seismic attribute map.

Abstract: The present disclosure discloses a method for identifying a boundary of a sedimentary facies, a computer device and a computer readable storage medium. The method comprises: acquiring a preliminary marked result of the sedimentary facies in a seismic attribute map; acquiring a color-based K-means classification result of the seismic attribute map by using a maximal between-cluster variance and a K-means clustering; acquiring a super-pixel classification result of the seismic attribute map according to a SLIC super-pixel segmentation; and performing a region growing fusion on the super-pixel classification result by taking the preliminary marked result and the K-means classification result as constraints, to determine an identification result of the boundary of the sedimentary facies in the seismic attribute map.

Abstract: There is disclosed in the present disclosure a seismic full horizon tracking method, a computer device and a computer-readable storage medium. The method includes: acquiring three-dimensional seismic data; extracting horizon extreme points from the three-dimensional seismic data to construct a sample space; equally dividing the sample space into a plurality of sub-spaces with overlapping portions, and performing a clustering process on the horizon extreme points in each sub-space to obtain horizon fragments corresponding to each horizon of the three-dimensional seismic data; establishing a topological consistency between the horizon fragments; and fusing the horizon fragments corresponding to each horizon of the three-dimensional seismic data based on the topological consistency, to obtain a full horizon tracking result of the three-dimensional seismic data.

Abstract: A combined degassing method for a high-viscosity pure-chitosan spinning solution, including: step 1, thoroughly dissolving the spinning solution in a dissolution vessel for subsequent use, the viscosity reaching 450,000-500,000 mpa·s; step 2, delivering the spinning solution in step 1 to the feed port of a degassing vessel from the dissolution vessel after filtration; step 3, in the degassing vessel, under the conditions of vacuumizing and maintaining the inner pressure of the degassing vessel to be 500-3,000 Pa, performing continuous treatment by a combined degassing process integrating separation, film-scraping, lifting and shear; and step 4, sampling at a sampling port for the detection of degassing degree, finishing the degassing operation if the detection result is eligible, otherwise repeating step (3) until the detection result is eligible. This method has high degassing efficiency and good degassing effect, and is applicable to spinning solutions of a wide range of viscosity.

Abstract: A combined degassing method for a high-viscosity pure-chitosan spinning solution, including: step 1, thoroughly dissolving the spinning solution in a dissolution vessel for subsequent use, the viscosity reaching 450,000-500,000 mpa·s; step 2, delivering the spinning solution in step 1 to the feed port of a degassing vessel from the dissolution vessel after filtration; step 3, in the degassing vessel, under the conditions of vacuumizing and maintaining the inner pressure of the degassing vessel to be 500-3,000 Pa, performing continuous treatment by a combined degassing process integrating separation, film-scraping, lifting and shear; and step 4, sampling at a sampling port for the detection of degassing degree, finishing the degassing operation if the detection result is eligible, otherwise repeating step (3) until the detection result is eligible. This method has high degassing efficiency and good degassing effect, and is applicable to spinning solutions of a wide range of viscosity.

Abstract: A degassing device for high-viscosity pure-chitosan spinning solutions having a reaction vessel and stirring device. A feed port and vacuum port are disposed at the upper part of the reaction vessel, an inner cylinder body is fixedly disposed in the center position of the reaction vessel which also has a discharge port, the upper cylinder opening of the inner cylinder body is closed and the lower cylinder opening is open, an umbrella-shaped dispersion plate is fixedly disposed at the periphery of the upper half part of the inner cylinder body, a gap is formed between the outer edge of the umbrella-shaped dispersion plate and the inner wall of the reaction vessel, and small liquid outlet holes are distributed on the part of the inner cylinder body above the umbrella-shaped dispersion plate. The stirring device has a stirring shaft with screw propeller and stirring power unit.

Abstract: It is an object of the present invention to provide a spinning solution for industrial production of pure chitosan fiber and the method for fabricating the same. The method comprises the steps of: step (a): screening a flake chitosan raw material and removing impurities; step (b): putting in a dissolving kettle the screened flake chitosan raw material with a weight which is 3%-8% of the total weight of the spinning solution, sealing the dissolving kettle, and evacuating into vacuum; step (c): adding 0.9%-6% acetic acid solution, and soaking at the room temperature for 40-60 minutes; step (d): uniformly stirring at a rate of 26-60 rpm for 7.5-19 hours under a pressure of ?5000 pa in the dissolving kettle, standing for 1-3 hours, and obtaining a spinning solution.

Abstract: A well constrained transverse variable height-velocity curve constructing method for seismic wave velocity field construction involves the steps of: a) calculating interval velocity of each stratum by a sonic logging curve, and calculating the conversion horizon velocity of each horizon; b) drawing a circle to collect well points; c) calculating the characteristic parameter values of the height-velocity curve by the interval velocity and the conversion interval velocity of each well; d) calculating the characteristic parameter values by Kriging interpolation.

Abstract: It is an object of the present invention to provide a spinning solution for industrial production of pure chitosan fiber and the method for fabricating the same. The method comprises the steps of: step (a): screening a flake chitosan raw material and removing impurities; step (b): putting in a dissolving kettle the screened flake chitosan raw material with a weight which is 3%-8% of the total weight of the spinning solution, sealing the dissolving kettle, and evacuating into vacuum; step (c): adding 0.9%-6% acetic acid solution, and soaking at the room temperature for 40-60 minutes; step (d): uniformly stirring at a rate of 26-60 rpm for 7.5-19 hours under a pressure of ?5000 pa in the dissolving kettle, standing for 1-3 hours, and obtaining a spinning solution.

Abstract: The technical solution of the present invention provides a method for measuring content of chitosan fiber in textile by using a series of equations. The method calculates the content of chitosan fiber in textile according to the following equations: W1=C×f×(V1?V2)×0.001×161.15×100/W3 W2=C×f×(V1?V2)×0.001×203.19×100/W3×(1?D·D)/D·D g=(W1+W2)/W×100% The error is very small in this method. Besides, a highly sensitive, simple, and fast method for measuring content of chitosan fiber in textile is established.

Abstract: A well constrained horizontal variable height-velocity curve constructing method for seismic wave velocity field construction involves the steps of: a) calculating horizon velocity of each horizon by a sonic logging curve, and calculating the conversion horizon velocity of each horizon; b) drawing a circle to collect well points; c) calculating the characteristic parameter values of the height-velocity curve by the horizon velocity and the conversion horizon velocity of each well; d) calculating the characteristic parameter values by Kriging interpolation.