6 results about "Sulfur deposition" patented technology

This invention discloses a temperature-switching adsorption device and its regeneration process for purifying high-hydrogen sulfide coal gas, belonging to the field of industrial by-product coal gas purification technology. The device includes an adsorption tower, a regeneration gas heater, a high-temperature gas-liquid separator, a regeneration gas cooler, and a gas-liquid separator. The adsorption tower is filled with a composite adsorbent layer that inhibits the catalytic oxidation of hydrogen sulfide. The high-temperature gas-liquid separator is equipped with a heating and insulation structure to maintain an operating temperature above the melting point of sulfur. This invention solves the problems of sulfur deposition in the adsorption bed and blockage of the regeneration cooler in traditional processes, extends the service life of the adsorbent, ensures long-term continuous operation of the device, and allows for the resource recovery of the separated liquid sulfur. It is suitable for purifying high-hydrogen sulfide coal gases such as coke oven gas and raw coal gas. The modification is simple, the investment is low, and it has good prospects for industrial application.

The present application relates to the oil field chemistry and surfactant technical field, especially a kind of for high sulfur gas field sulfur particle anti-agglomerant and preparation method.The elemental sulfur anti-agglomerant provided in the present application includes the following mass fraction components: potassium stearate 2~5 parts, sodium lignosulfonate 3~9 parts, sodium p-toluenesulfonate 4~8 parts, inorganic salt adjuvant 11~23 parts and solvent 60~75 parts.The process flow of the elemental sulfur anti-agglomerant prepared in the present application is simple, and the economic cost is low, by adjusting the synergism and compatibility between surfactants, improve its dispersed sulfur particle performance, applicable to sulfur deposition prevention and control means in high sulfur gas field.

This invention provides a hydraulic rotary desulfurization tool for oil tubing, including a rotary scraper module. The rotary scraper module includes a scraper housing and multiple variable-diameter scraper blocks. Inside the scraper housing, a mandrel is floatingly supported by a base and an elastic element. Multiple wedge-shaped push blocks are provided outside the mandrel, each with an inclined surface and a dovetail groove. Dovetail blocks are provided inside the variable-diameter scraper blocks, and these dovetail blocks are slidably engaged within the inclined dovetail grooves. When working fluid is input, the mandrel compresses the elastic element downwards under liquid pressure, causing the wedge-shaped push blocks to move downwards. Simultaneously, during the downward movement of the wedge-shaped push blocks, the variable-diameter scraper blocks move outwards circumferentially along the scraper housing under the influence of the inclined surface force of the wedge-shaped push blocks, thus achieving the variable diameter of the rotary scraper module. The beneficial effects of this invention are: it can convert the hydraulic energy of the working fluid into mechanical energy, removing sulfur deposits from the inner wall of the oil tubing, improving the desulfurization efficiency of the oil tubing without damaging the well wall, and ensuring long-term normal production operations of the gas well.

The invention relates to the technical field of data analysis, and discloses a shaft and pipe network production allocation risk assessment system for a sulfur-containing gas reservoir, and the system comprises an integrated model which comprises a gas reservoir model, a shaft model and a pipe network model; the configuration module is used for configuring configuration parameters of the integrated model and inputting simulated production allocation value parameters of each production node; a storage module; the extraction module is used for extracting the production allocation result of the integrated model stored in the storage module; the early warning judgment module is used for comparing the production allocation result with configuration parameters so as to judge whether early warning is carried out or not; the sulfur deposition judgment module is used for calculating the sulfur solubility according to the production allocation result and comparing the sulfur solubility with the actual sulfur content so as to judge whether to give an early warning or not; and the display module is used for displaying the configuration result and the judgment results of the early warning judgment module and the sulfur deposition judgment module. The safety and feasibility of the production allocation scheme can be improved.

The application discloses a kind of imbibition type low corrosive sulfur deposition plugging cleaning agent and preparation method thereof, and relates to the technical field of oil and gas field development, comprising: cleaning main agent, the cleaning main agent is composed of sulfur-containing organic solvent and organic amine solvent;Auxiliary agent, the auxiliary agent is composed of hydroxyl-containing organic amine and benzene ring-containing organic amine;Imbibition agent.The imbibition type low corrosive sulfur deposition plugging cleaning agent and preparation method thereof proposed in the application have higher sulfur solubility, lower corrosion rate under the condition of not adding corrosion inhibitor, greatly improve cleaning efficiency.

This invention relates to the field of oil and gas field chemical agent preparation technology, and particularly to a sulfur deposition inhibitor for high-sulfur gas fields and its preparation method. The sulfur deposition inhibitor of this invention comprises the following components in parts by weight: 0.9-1.5 parts hexadecyltrimethylammonium chloride, 0.3-0.6 parts octadecyltrimethylammonium chloride, 4-6 parts cocamidopropyl betaine, 2.5-3.5 parts sodium α-alkenyl sulfonate, 1.5-2.2 parts sodium palmitate methyl sulfonate, 1.2-1.8 parts potassium carbonate, 0.6-1 parts magnesium chloride, and 83.4-89 parts solvent. This invention solves the problems of complex synthesis processes, low inhibition efficiency, high toxicity, and poor engineering adaptability of traditional sulfur inhibitors by adjusting the synergy and compatibility between inorganic salts and surfactants, making it suitable for large-scale application and promotion in high-sulfur gas fields.