Abstract: A method of performing a remediation process on a flowline comprises: calculating an asphaltene deposition profile characterizing blockage of the flowline by a deposit of asphaltene; determining, based on the asphaltene deposition profile, whether the blockage exceeds a predetermined level of blockage; and treating the flowline with an asphaltene solvent to dissolve at least a portion of the deposit when the blockage exceeds the predetermined level. A computer program product comprises instructions that are stored on a computer-readable medium and that, when executed by a processor, cause an apparatus to: calculate an asphaltene deposition profile characterizing blockage of a flowline by a deposit of asphaltene; determine, based on the asphaltene deposition profile, whether the blockage exceeds a predetermined level of blockage; and determine to treat the flowline with an asphaltene solvent to dissolve at least a portion of the deposit when the blockage exceeds the predetermined level.

Abstract: A method for testing the nanomechanical properties of natural gas hydrate samples is provided. A dry pure nitrogen environment and a partial ultralow-temperature liquid nitrogen test condition are constructed, a micro-positive pressure state in a glovebox is maintained, and the temperature of a milling tool and a sample stand are maintained consistent; then, a hydrate sample is transferred and installed in the dry nitrogen environment, and the milling tool is driven to cut a surface of the natural gas hydrate sample to form a relatively flat surface; next, indentation parameter reliability testing is performed, an indentation load is changed, indentation testing of indentation points is performed, and an indentation form is observed. The method can realize indentation testing of natural gas hydrate samples in an ultralow-temperature and dry environment by means of a nanoindenter.

Abstract: A method of performing a remediation process on a flowline comprises: calculating an asphaltene deposition profile characterizing blockage of the flowline by a deposit of asphaltene; determining, based on the asphaltene deposition profile, whether the blockage exceeds a predetermined level of blockage; and treating the flowline with an asphaltene solvent to dissolve at least a portion of the deposit when the blockage exceeds the predetermined level. A computer program product comprises instructions that are stored on a computer-readable medium and that, when executed by a processor, cause an apparatus to: calculate an asphaltene deposition profile characterizing blockage of a flowline by a deposit of asphaltene; determine, based on the asphaltene deposition profile, whether the blockage exceeds a predetermined level of blockage; and determine to treat the flowline with an asphaltene solvent to dissolve at least a portion of the deposit when the blockage exceeds the predetermined level.