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Carbon dioxide triggered expanded graphite anti-channeling agent and preparation method thereof
PendingCN122060470Areduce pollutionRealize the blocking effectGraphiteDrilling compositionPhysical chemistryDistilled water
The invention discloses a carbon dioxide triggered expanded graphite channeling inhibitor and a preparation method, and belongs to the technical field of oil-gas field development, and the preparation method comprises the following steps: dispersing aminated graphite in distilled water to obtain aminated graphite dispersion liquid, adding nitrite into the aminated graphite dispersion liquid, and uniformly stirring to obtain the carbon dioxide triggered expanded graphite channeling inhibitor. The mass ratio of the nitrite to the aminated graphite in the S1 is (8-12): (5-10), and the carbon dioxide triggered expanded graphite anti-channeling agent solves the problem that solid-phase residues generated after degradation of the anti-channeling agent permanently block reservoir pores and cause productivity reduction, after nitrogen in a graphite layer completely escapes, the plugging effect on cracks is weakened, unblocking of the plugging agent is achieved, and the problem that the productivity is reduced is solved. And the problem of permanent loss of rock stratum permeability does not exist.
Owner:SHAANXI UNIV OF SCI & TECH
Novel child comfort urine retention bag
The utility model belongs to the field of medical apparatus and instruments, especially a novel comfortable urine retention bag for sick children, in view of the existing urine cannot be blocked, is easy to reflux, urine is splashed, and the urine retention bag is taken off and needs to be replaced, and the problem that the body part of the sick child is adhered and fixed again, the present scheme is proposed, including silica gel pad and containing bag, one side of silica gel pad is fixedly connected with catheterization storehouse, the liquid outlet of catheterization storehouse is fixedly connected with first connecting ring, the liquid inlet of containing bag is fixedly connected with adhesive ring, one side of adhesive ring is fixedly connected with second connecting ring, the outer wall of first connecting ring and the inner wall of second connecting ring are equipped with thread groove, the novel comfortable urine retention bag for sick children has remarkable beneficial effect in urine collection, anti-reflux, convenient sampling and comfortable wearing etc.
Owner:CHENGDU WUHOU DISTRICT PEOPLES HOSPITAL
A heating network with leak protection
ActiveCN224593353UOvercome water leakageQuick control of rotation
The utility model relates to a kind of heat supply pipe network with leakage protection, especially in the technical field of heat supply pipe network equipment.It includes heat supply pipe, clamping mechanism, pressure sensor, first vane, second vane, driving assembly.It overcomes the phenomenon that pipeline is prone to breakage and split during long-term use, further leading to water leakage of pipe network;And there is no mechanism in the current heat supply pipeline that can protect water leakage, thereby causing great security risks to maintenance workers.
Owner:FUZHOU HETE NEW ENERGY CO LTD
Water atomization spraying and conveying device
ActiveCN224057696UAchieve blocking effectimprove securityDetection of fluid at leakage pointSpraying apparatusThermodynamicsMechanical engineering
Owner:DONGGUAN BONUO ELECTRONIC TECHNOLOGY CO LTD
Thixotropic agent and strong retention consolidation plugging method suitable for severe leakage
ActiveCN120865865BDetention is validRealize vicious leakage
The application belongs to the technical field of plugging in oil drilling, and particularly relates to a thixotropic agent and a strong retention and consolidation plugging method suitable for serious leakage. The thixotropic agent comprises 4-5 parts of organic polymer and 4-5 parts of inorganic substance by weight fraction; the organic polymer comprises 2-3 parts of bisphenol A glyceride monomer, 0.5-0.6 parts of acrylamide monomer, 2-3 parts of sulfonic acid monomer and 0.5-1 part of sodium hydroxide. The application realizes the application of the strong retention and consolidation plugging agent to serious leakage of large cracks and large solution cavities by optimizing the formula of the thixotropic agent and designing and optimizing the formula, preparation method and construction method of the plugging slurry prepared by using the thixotropic agent, so that the plugging slurry can be effectively retained in the leakage layer, the plugging effect is achieved, and the success rate of one-time plugging is improved.
Owner:CNPC BOHAI DRILLING ENG +1
Adjustable sedimentation tank surface scum collector
ActiveCN224207493UConveniently adjust the floating heighteasy to collectSettling tanks feed/dischargeFiltration circuitsSewageScrew thread
The utility model discloses an adjustable sedimentation tank surface scum collector, which relates to the field of scum collectors and comprises a collection box and a delivery pipe mounted on the inner side of the collection box, the front end of the delivery pipe is mounted at the rear end of a transit bin through threads, and a sewage pump is arranged on the surface of the delivery pipe. The outer side of the sewage pump is mounted on the surface of the collecting box; a collecting opening is formed in the upper end of the transfer bin. When the adjustable sedimentation tank surface scum collector is used, a proper amount of water is added into the buoyancy tank through the adjusting opening, then the adjusting opening is closed, and the collecting opening and the support part are placed in the sedimentation tank, so that the water added into the buoyancy tank can press the support and the collecting opening downwards and is pumped through the sewage pump and the conveying pipe; the pumped water enters the collecting box to be collected, if the quality of the water in the floating box needs to be adjusted, the water in the floating box can be discharged by starting the plug valve, the floating height of the floating box can be conveniently adjusted, collection is convenient, and operation is easy.
Owner:HAITIAN SHUIWU GRP CO LTD