50results about How to "Effective emulsification" patented technology

The invention discloses a strong emulsibility microbe wax cleaning and preventing bacterial agent and an application, which belongs to the oil field chemical technology field. The wax cleaning and preventing bacterial agent mainly comprises pseudomonas aeruginosa and geobacillus sp, has strong emulsification capability, and is capable of dispersing crude oil, promoting crude oil to flow, changing adherence force of borehole wall, preventing the accumulation of wax crystal on the borehole wall, and playing the paraffin inhibition and wax cleaning effects. By increasing the initial application amount of the bacteria liquid and prolong the well closing time, a stable paraffin inhibition zone can be formed due to adhesion of bacteria on borehole wall, near wellbore formation can be cleaned, and the paraffin inhibition and oil increase effects can be increased. After on-site enforcement, the well cleaning and chemical paraffin inhibition works can not be carried out in recent half year in the test wells, so that the wax cleaning and preventing bacterial agent has good paraffin inhibition effect in the well. The oil production is increased by about 30% daily, pump efficiency is increased about 10%, the surface tension of the output liquid is decreased to 20-25%, and the crude oil condensation point is decreased by 1-3 DEG C.

The invention relates to a soil heavy metal pollution treatment technology, and concretely relates to a soil heavy metal deactivator, and a method using the soil heavy metal deactivator to deactivate and repair soil heavy metal pollution. The soil heavy metal deactivator comprises, by weight, 30 parts of peanut shells, 15 parts of red pine needles, 10 parts of sepiolite, 10 parts of fly ash, 5 parts of chitin, 3 parts of sodium metasilicate pentahydrate, 0.4 part of sodium tripolyphosphate, 0.1 part of choline chloride, 1.2 parts of a microbial inoculum and 0.05 part of quicklime. The soil heavy metal deactivator can effectively reduce the heavy metal content of plants to achieve the deactivation and repairing purposes.

The invention relates to a method for preparing a monascus pigment, in particular to a method for preparing a monascus red pigment by utilizing immobilized enzymes. The method comprises the steps as follows: taking a monascus liquid fermentation solution as a raw material, homogenizing, enzymatically hydrolyzing the immobilized enzymes, alkalifying and filtering to obtain a monascus red pigment solution; and carrying out acid deposition on the monascus red pigment solution, washing and neutralizing the deposits, dehydrating and drying to obtain the monascus red pigment. The method has the advantages as follows: on one hand, the fermentation solution is effectively dispersed, broken, emulsified and mixed by utilizing a colloid mill, so that the subsequent enzymatic hydrolysis efficiency is improved and the monascus red pigment in monascus is fully released; and on the other hand, an enzyme preparation can be recycled, the reaction conditions are moderate, the monascus red pigment is concentrated through the acid deposition method, the process is simple, the energy consumption is low, and the product is easy to separate. The production cost can be remarkably reduced through the monascus red pigment prepared with the method. The monascus red pigment has the maximum absorption wavelength of 499 nm, is good in water solubility and light, heat, acid, alkali and metal stabilities, and is favorable for the monascus pigment industry development.

The invention provides a displacement exploitation method for heavy oil reservoir after artificial foam primer and steam flooding. The method comprises: selecting a target oil reservoir and a target well group; stopping a well group steam injection and oil exploitation process, and injecting an artificial foam oil primer slug and a gas slug into injection wells; opening wells to exploit oil when formation pressure rises so that bottom-hole static pressure of a production well reaches a set value; after injecting the gas slug, continuing the inject steam to the injection wells, judging whether injection transfer conditions and lower economic limit are satisfied or not, and determining whether to continue oil exploitation or stop oil exploitation. By using an artificial foam oil primer in the method, it is possible to reduce crude oil viscosity and surface tension for a near-wellbore formation, gas is dispersed in micro bubble form in oil-in-water emulsion, rheological properties of crude oil are improved, oil-gas-water to-be-mixed phase fluid is formed, elasticity energy is supplemented to the formation, overall mobility of fluid in the oil reservoir is improved, mobility of crude oil is improved, and single-well productivity and final recovery are increased.