Abstract: A switching device has an encapsulation housing and lashing points. The lashing points are arranged in such a manner that a center of gravity of the switching device lies below the lashing points in a lashing direction.

Abstract: A processing assembly including cage, partition, two sub-cages, two motherboards, two switch boards and at least one bridge board. Partition is disposed in cage so as to divide inner space of cage into first accommodation space and second accommodation space. Two sub-cages are respectively disposed in first accommodation space and second accommodation space. Two motherboards are respectively disposed on two sub-cages. Two motherboards each include a plate and a plurality of processing units disposed on the plate. Two switch boards are respectively disposed on two sub-cages and respectively electrically connected to two motherboards. Bridge board is electrically connected to two motherboards. One of two motherboards is located between one of two switch boards and bridge board, and another one of two motherboards is located between another one of two switch boards and bridge board.

Abstract: A server heat dissipation structure, configured to dissipate the heat of a host casing of a dense type server. The server heat dissipation structure includes a thermosiphon heat sink and a fan assembly. The thermosiphon heat sink includes a heat absorbing end and a heat dissipation end that are connected via a connection tube. The fan assembly is disposed on a side of the heat dissipation end so as to help the heat dissipation of the heat dissipation end.

Abstract: The present disclosure discloses a fluorescent dispersed particle gel, a fluorescent gel, a fluorescent modified polyacrylamide composite, and a preparation method and use thereof.

Abstract: A processing assembly including cage, partition, two sub-cages, two motherboards, two switch boards and at least one bridge board. Partition is disposed in cage so as to divide inner space of cage into first accommodation space and second accommodation space. Two sub-cages are respectively disposed in first accommodation space and second accommodation space. Two motherboards are respectively disposed on two sub-cages. Two motherboards each include a plate and a plurality of processing units disposed on the plate. Two switch boards are respectively disposed on two sub-cages and respectively electrically connected to two motherboards. Bridge board is electrically connected to two motherboards. One of two motherboards is located between one of two switch boards and bridge board, and another one of two motherboards is located between another one of two switch boards and bridge board.

Abstract: A contact press-on assembly for a switching contact piece of an electrical switching unit has a first stop and a second stop. A spring element extends between the two stops, wherein the first stop can move relative to the second stop. The second stop provides a counterbearing for the first stop, wherein a rotary bearing for the spring element can move together with the first stop.

Abstract: The present disclosure relates to a method for oil displacement using a dispersed particle gel-strengthened polymer ternary composite displacement system.

Abstract: A modified nano graphite, a polymer composite material of the modified nano graphite, and use of the polymer composite material in a high temperature and high salinity oil reservoir.

Abstract: The present disclosure relates to a method for oil displacement using a dispersed particle gel-strengthened polymer ternary composite displacement system.

Abstract: A composite temperature resistance gel plugging agent, a preparation method thereof and Fuse thereof in profile control and water plugging of ultra-deep oil reservoirs.

Abstract: The present disclosure relates to the field of oilfield chemistry, in particular to a composition for multi-component composite intercalation, a method of preparing a graphite system and a method of profile control and water shutoff.

Abstract: This disclosure relates to a server includes a chassis, a processor, a liquid cooling tube and a liquid leak detection system. The processor is disposed in the chassis. The liquid cooling tube is disposed on the processor. The liquid leak detection system includes a circuit board and a first detecting wire. The circuit board is disposed in the chassis. The first detecting wire is disposed on a side of the liquid cooling tube and electrically connected to the circuit board.

Abstract: A switching device has an encapsulation housing and lashing points. The lashing points are arranged in such a manner that a center of gravity of the switching device lies below the lashing points in a lashing direction.

Abstract: Provided is a method for construction of recombinant bacteria for producing 3-hydroxypropionic acid. The method includes: knocking out fadR, fabF and fabH genes of recipient bacteria, introducing acc genes or gene clusters, alKL and Mcr genes, and enhancing the expression of fadL, fadD, sthA genes and atoSC gene clusters in the recipient bacteria. Also provided is a method for producing 3-hydroxypropionic acid by using the recombinant bacteria.

Abstract: A CO2-sensitive fracturing and displacement fluid contains a surfactant, an auxiliary agent, water, and CO2, wherein CO2 is liquid and/or supercritical CO2. The CO2-sensitive fracturing and displacement fluid provided by the invention does not flow back after completion of fracturing construction, and the gel breaking fluid displacement is carried out after soak for a period of time to improve the tight oil recovery ratio. The CO2-sensitive fracturing and displacement fluid exerts the “one-agent multi-purpose” function of sand carrying, CO2 energization and oil displacement, surfactant imbibition and oil discharge of a fracturing-displacement system in different development and production stages, and achieves the dual goals of expanding the utilization degree of tight oil and improving the displacement efficiency of the tight oil, which can effectively reduce costs and achieve the goal of unified, highly efficient and green development of oil and gas fields.

Abstract: Provided a skid-mounted dispersed particle gel production device, dispersed particle gel and a preparation method and use thereof. The device sequentially comprises, in a delivery direction of a material flow, a jet blending system, a bulk gel chemical crosslinking reaction system, a shearing and grinding system, a storage system. and an intelligent regulation system Rapid crosslinking reaction of bulk gel in a medium/high-temperature oil reservoir and large-scale preparation of multiscale dispersed particle gel can be realised, and the device is applied to continuous production in a complex environment such as a tidal flat, a hill and an offshore work platform.

Abstract: The flow modifier particle composition contain a viscoelastic base agent, a selective solubilizer, a density modifier, a sweller, and an optional plasticizer, wherein based on the total weight of the flow modifier particle composition, the content of the viscoelastic base agent is 30-90 wt %, the content of the selective solubilizer is 3-30 wt %, the content of the density modifier is 0.1-30 wt %, the content of the sweller is 1-30%, and the content of the plasticizer is 0-10 wt %. The present invention further discloses a flow modifier, which contains the flow modifier particle composition and a carrying fluid that contains water and a surfactant. The present invention further discloses a preparation method of the flow modifier, and a use of the flow modifier and the flow modifier particle composition in exploitation of fracture-cave reservoirs.

Abstract: A CO2-sensitive fracturing and displacement fluid contains a surfactant, an auxiliary agent, water, and CO2, wherein CO2 is liquid and/or supercritical CO2. The CO2-sensitive fracturing and displacement fluid provided by the invention does not flow back after completion of fracturing construction, and the gel breaking fluid displacement is carried out after soak for a period of time to improve the tight oil recovery ratio. The CO2-sensitive fracturing and displacement fluid exerts the “one-agent multi-purpose” function of sand carrying, CO2 energization and oil displacement, surfactant imbibition and oil discharge of a fracturing-displacement system in different development and production stages, and achieves the dual goals of expanding the utilization degree of tight oil and improving the displacement efficiency of the tight oil, which can effectively reduce costs and achieve the goal of unified, highly efficient and green development of oil and gas fields.

Abstract: An oil-soluble coated particle flow modifier, a preparation method thereof, and a use thereof in fractured-vuggy carbonate reservoirs mining. The oil-soluble coated particle flow modifier is of a core-shell structure, which has a core layer of a coated core and a shell layer of a coating agent, wherein the coated core is made of a plugging material, and the coating agent consists of petroleum resin and hollow beads. Based on the total weight of the coated particle flow modifier, the content of the petroleum resin, the hollow beads, the cotton linters, and the coated cores is 10-40 wt %, 9-40 wt %, 1-10 wt %, and 35-80 wt %, respectively. A preparation method of the coated particle flow modifier and a use of the coated particle flow modifier in fractured-vuggy carbonate reservoirs mining to improve oil recovery is also provided.

Abstract: The present invention relates to the field of profile control and flooding in oil fields, particularly to a colloidal nano-graphite-strengthened bulk gel system for dispersed particle gel, and composition thereof. The composition for bulk gel system, containing a polymeric matrix, a resin cross-linking agent, a coagulant, and colloidal nano-graphite, wherein, with respect to 100 parts by weight of the polymeric matrix, a content of the resin cross-linking agent is 30-150 parts by weight, a content of the coagulant is 5-100 parts by weight, and a content of the colloidal nano-graphite is 3-30 parts by weight; wherein, the polymeric matrix is partially hydrolyzed polyacrylamide with weight-average molecular weight within a range of 5,000,000-8,000,000 g/mol; the coagulant is one or more of chloride salt coagulant and alcohol amine coagulant.