Abstract: An on-site heavy metal contaminated soil treatment apparatus, comprising a sampling system, a molding system, a heat processing system and a tail gas processing system disposed in sequence. The sampling system includes a bucket elevator and a planetary stirring device which are connected in sequence and are disposed on a mobile platform of the sampling system. The apparatus is easy to move and assemble, has a small floor area, and can be built on a target contaminated site, reducing transportation costs and the risk of secondary contamination. The entire process performed by the apparatus proceeds automatically, reducing labor costs. The planetary stirring sampling method and automatic brick blank extrusion molding process of the apparatus are applicable to various types of heavy metal contaminated soil providing high processing efficiency and good molding effect. Combined microwave heating and high-temperature steam heating provide rapid heating, small thermal inertia, and easy temperature control.

Abstract: An on-site heavy metal contaminated soil treatment apparatus, comprising a sampling system, a molding system, a heat processing system and a tail gas processing system disposed in sequence. The sampling system includes a bucket elevator and a planetary stirring device which are connected in sequence and are disposed on a mobile platform of the sampling system. The apparatus is easy to move and assemble, has a small floor area, and can be built on a target contaminated site, reducing transportation costs and the risk of secondary contamination. The entire process performed by the apparatus proceeds automatically, reducing labor costs. The planetary stirring sampling method and automatic brick blank extrusion molding process of the apparatus are applicable to various types of heavy metal contaminated soil providing high processing efficiency and good molding effect. Combined microwave heating and high-temperature steam heating provide rapid heating, small thermal inertia, and easy temperature control.

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: 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: The invention provides a modified graphite particle system for strengthening a polymer/binary/ternary composite oil displacement system. The modified graphite particle system comprises the following components: 1-5 parts by mass fraction dispersed graphite particles, 0.2-0.6 parts by mass fraction dispersant, 0.1-0.5 parts by mass fraction wettability modifier, and deionized water that accounts for the remaining content, based on 100 parts by total mass fraction of the components. In addition, the present invention also provides a preparation and a use of the modified graphite particle system for strengthening the polymer/binary/ternary composite oil displacement system.

Abstract: The invention provides a modified graphite particle system for strengthening a polymer/binary/ternary composite oil displacement system. The modified graphite particle system comprises the following components: 1-5 parts by mass fraction dispersed graphite particles, 0.2-0.6 parts by mass fraction dispersant, 0.1-0.5 parts by mass fraction wettability modifier, and deionized water that accounts for the remaining content, based on 100 parts by total mass fraction of the components. In addition, the present invention also provides a preparation and a use of the modified graphite particle system for strengthening the polymer/binary/ternary composite oil displacement system.

Abstract: The present invention provides a modified nano-graphite particle three-phase foam profile control and flooding system, which comprises a liquid phase and a gas phase, wherein the liquid phase comprises 0.15%-0.35% foaming agent, 0.04-0.1% foam stabilizer, and water that accounts for the remaining content, the sum of weight percentages of above components is 100%; a gas-liquid ratio of the gas phase to the liquid phase is (1-3):1. The foaming agent is selected from one of alkylsulfopropyl betaine and alkylamidopropyl betaine or a combination of them. The foam stabilizer is modified nano-graphite particles in 80-150 nm particle diameter. The present invention further provides a preparation method of the modified nano-graphite particle and a preparation method of the three-phase foam profile control and flooding system.

Abstract: The present invention provides a modified nano-graphite particle three-phase foam profile control and flooding system, which comprises a liquid phase and a gas phase, wherein the liquid phase comprises 0.15%-0.35% foaming agent, 0.04-0.1% foam stabilizer, and water that accounts for the remaining content, the sum of weight percentages of above components is 100%; a gas-liquid ratio of the gas phase to the liquid phase is (1-3):1. The foaming agent is selected from one of alkylsulfopropyl betaine and alkylamidopropyl betaine or a combination of them. The foam stabilizer is modified nano-graphite particles in 80-150 nm particle diameter. The present invention further provides a preparation method of the modified nano-graphite particle and a preparation method of the three-phase foam profile control and flooding system.