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7 results about "Scale deposition" patented technology

Scale deposition occurs when the solution equilibrium of the water is disturbed by pressure and temperature changes, dissolved gases or incompatibility between mixing waters. Scale deposits are the most common and most troublesome damage problems in the oil field and can occur in both production and injection wells.

Waterway control system capable of reducing incrustation scale

The invention relates to the technical field of intelligent closestools, and provides a waterway control system capable of reducing incrustation scale, the waterway control system comprises a water source, a heating device and a flushing waterway which communicate with one another through pipelines, when the flushing waterway uses hot water, water flow of the water source is heated by the heating device and then supplied to the flushing waterway; and after the heating device stops supplying hot water to the flushing water way, the descaling function is executed, and the water source is controlled to at least supply water flow with the temperature lower than a preset threshold value to the flushing water way and / or the heating device so as to flush out at least part of residual hot water in the flushing water way and / or the heating device. On the basis, incrustation deposition can be reduced, incrustation blockage can be improved, the service life of the product is prolonged, and user experience is improved.
Owner:ESMART (XIAMEN) TECH CO LTD

Scale settling and sewage filtering device

The invention relates to the technical field of oilfield injection water treatment, in particular to a scale settling and sewage filtering device, which is used for solving the problems of different problem solving objects, unknown filtering strength and low pertinence caused by the fact that the reason for generating impurities in oilfield injection water is not analyzed clearly in the prior art. An inlet flange and an outlet flange are connected to the shell, the inlet flange is connected to a water supply pipe, the outlet flange is connected to a water injection pump, and the inner diameter of the inlet flange is smaller than that of the shell, so that the flow speed of incoming water is reduced after the incoming water enters the shell through the inlet flange, and scale is deposited; the cross sectional area of the shell of the device is three times that of the water inlet pipe, so that dirt in water can be deposited, particles in the water are greatly reduced, impact on parts such as a valve seat, a valve plate and a plunger in the water injection pump is reduced, the maintenance frequency of the water injection pump is reduced, and the water injection efficiency is improved.
Owner:PETROCHINA CO LTD

Anti-blocking descaling device for desulfurization process water system

The utility model relates to the technical field of desulfurization process, in particular to an anti-blocking descaling device for a desulfurization process water system, which not only can be used for cleaning scales on the inner walls of a straight pipe and a bent pipe and widening the application range of the device, but also can be used for conveniently detecting the scale deposition condition and the descaling effect in a pipeline and is convenient for workers to operate. Comprising a fixing mechanism; the device further comprises a cleaning mechanism, a water filling mechanism, a sealing mechanism and a scanner, the cleaning mechanism is installed on the fixing mechanism and cleans the interior of the pipeline, the water filling mechanism is installed on the cleaning mechanism and pushes the cleaning mechanism to move, and the sealing mechanism is installed on the cleaning mechanism and enhances the sealing effect of the device. And the scanner is mounted on the cleaning mechanism and scans and detects the internal condition of the pipeline.
Owner:ZHEJIANG HONGTENG ELECTRIC POWER ENGINEERING CO LTD

Pipeline non-excavation repairing method and device

The invention relates to the technical field of underground pipeline repair, and discloses a pipeline non-excavation repair method and device, the pipeline non-excavation repair device comprises a bearing mechanism which comprises a shell and a UV lamp set fixedly mounted on the outer side of the shell; and the self-adaptive mechanism comprises a supporting plate, a damping spring annularly and fixedly mounted on one side of the supporting plate, and a limiting rod fixedly mounted on the outer side of the supporting plate. The walking assembly adopts the linkage design of universal guide wheels and transverse guide rods, lateral force is counteracted in real time through mechanical self-balance, a damping spring and a reset spring of the self-adaptive mechanism form a dynamic buffer system, vibration is absorbed, posture deviation is automatically corrected, and a rigid constraint mechanism of a limiting rod and a limiting movable plate is achieved; and meanwhile, a water spraying pipe head of the cleaning assembly and the scraping assembly act synergistically, scale deposition causing uneven stress is removed in advance, the path offset of the equipment within the repair distance is effectively reduced, and the problem that lining materials are poor in attachment due to uneven stress is thoroughly solved.
Owner:CSCEC STRAIT CONSTR & DEV

Real time downhole water chemistry and uses

Method of monitoring produced water at each perforation or entry point by real time ion sensor deployed downhole to measure the content of water soluble ions. Methods of determining and differentiating nature of water breakthrough in oil production; such as between cycled injection water through a void space conduit, matrix swept injection water and formation water, especially as relates to offshore oil production. Real time ion sensors are deployed and when compared with known standards are used to monitor and remediate water breakthrough, prevent scale deposition, and the like.
Owner:CONOCOPHILLIPS CO

Method and system for controlling scale deposition in a geothermal system

A method for inhibiting scale deposition in a geothermal system, the method includes treating a water stream of the geothermal system with a scale inhibitor composition, wherein the scale inhibitor composition comprises a compound that includes a peptide bond. The compound that includes the peptide bond may be polypeptide, such as polyaspartic acid. The scale inhibitor composition may include a ligand or dispersant polymer.
Owner:CHEMTREAT INC

A biomimetic antifouling coating for complex environments

The present application provides a kind of bionic antifouling coating for complex environment.The bionic antifouling coating has at least one of a conical needle array surface, a rib band array surface and a conical hole array surface.The present application is inspired by the ability of cactus conical structure to direct liquid collection, the high-low rib structure of the bottle grass to quickly transport liquid, and the conical hole structure of duck bill to direct liquid collection.Combining the antisticking properties of the pitcher plant lubricated surface, a bionic antifouling coating is prepared and used for long-term antifouling in oil extraction and oil transportation.In a flowing oil-water environment, the long-term stable maintenance of the isolation layer is achieved, the purpose of inhibiting scale deposition and adhesion is achieved, and the long-term dynamic antifouling function in the oil-water environment can be realized.
Owner:TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI