30results about How to "Increased water carrying capacity" patented technology

The invention relates to foam liquid for drilling, in particular to strong inhibition type anti-collapse foam liquid for drilling, which is characterized by being prepared with the following components in parts by weight: 0.09-0.11 part of foam stabilizer, 0.36-0.44 part of foaming agent, 2.34-2.86 parts of anti-collapse agent, 2.7-3.3 parts of fluid loss additive and 94.51-93.29 parts of water. When complex situations such as formation water occur to gas drilling, the foam liquid of the invention can effectively improve the rock carrying capacity and the water carrying capacity and simultaneously protect the stability of the upper well wall. Laboratory studies shown that the foam liquid has high foaming capacity, the foaming capacity is more than or equal to 500 percent, the half-life ismoderate, and the foam liquid can be easily controlled and is conducive to drilling engineering construction.

The invention relates to a new energy-saving production process of ethyl acetate. The process comprises the sections of esterification, light removal, refining and recovery, and the membrane separation section is added between the esterification section and the light removal section. The organic phase at the esterification tower top is subject to membrane separation to desorb most moisture, and one part of the treated organic phase returns to an esterification tower to reflow and the other part is sent to a light removal tower to be refined. The membrane separation section comprises a vacuum cover (with a membrane module inside), a condenser, a penetrating fluid tank, a buffer tank and a vacuum pump. The method provided by the invention can greatly reduce water circulating in the esterification and light removal sections, save the heating steam in the esterification tower and the light removal tower, reduce the loads of the esterification tower and the light removal tower and further improve the production capability of the esterification tower and the light removal tower.

The invention relates to a process for preparing high-purity diketene, which overcomes the defects of low purity of ketene, low purity and poor safety of diketene products formed by absorbing and polymerizing ketene, as well as complex process, high cost and high acetic acid content of raffinate in the concentration recovery of dilute acetic acid. The process for preparing high-purity diketene issuitable for absorbing and polymerizing ketene dimer at low temperature on the basis of adopting stable acetic acid cracking conditions and deep refrigeration to remove impurities from cracking gas and generate pure ketene gas, adopting a film evaporator to further purify diketene products at low temperature under low pressure, and adding stabilizers after introducing polymerization inhibitor anddiketene for refining during the absorption and polymerization of ketene in order to improve synthesis safety and the stability of products in storage tanks. Meanwhile, the dilute acetic acid produced in the process reasonably matches the temperature of each point of a stripping section through a sensitive plate technique, improves the water-carrying capability of butyl acetate, and greatly reduces the concentration of acetic acid in concentrated raffinate.

The invention discloses a solvent for electronic cigarette smoke solution, which comprises, by mass, 20-78% of glycerol, 0.1-1.5% of water, 0.1-1.5% of ethanol, and 20-78% of 1, 3-propanediol or mixed solution of 1, 3-propanediol and 1, 2-propanediol. The 1, 3-propanediol which has high thermal stability and high water-carrying capacity in the range of from 80 DEG C to 350 DEG C is added in the electronic cigarette liquid solvent. Atomizing gas with high water vapor content formed by the glycerol can reduce the dryness of a smoker's nose and mouth, and the irritation of the smoker's respiratory system caused by the high water absorption of the glycerol and the atomization of 1, 2-propanediol. Compared with the traditional solvent for electronic cigarette smoke solution, this solvent for electronic cigarette smoke solution applied to the electronic cigarette smoke liquid can give the smoker a better smoking experience. The electronic cigarette smoke solution and the solvent for same also discloses an electronic cigarette smoke solution adopting the solvent for electronic cigarette smoke solution.

The invention discloses a water foaming injection method by using a super absorbent resin as a carrier. The method comprises the following steps: (1) the super absorbent resin is dried; (2) a thermoplastic plastic is selected as a basal body material; and after the thermoplastic plastic is mixed with the super absorbent resin, a little water is added; (3) uniform carrier master batches are prepared through a plastic extruder; (4) the carrier master batches are dried; (5) distilled water is sprayed and added into the carrier master batches to form water-carried master batches; (6) the water-carried master batches are added in a polymer raw material to be processed for uniform mixing to prepare a second mixed material; and (7) the second mixed material is added in a plastic injector to produce a foaming injection product. In the water foaming injection method by using the super absorbent resin as the carrier provided by the invention, water is easy to obtain; the control of water quantity can be conveniently realized through the use of the high absorbent resin; the foaming degree is easy to control; the processing temperature range of applicable materials is wide; and the method has such characteristics as economy, convenience and wide applicability.

The invention discloses a composite foaming agent for cast-in-place foam concrete. The foaming agent is composed of: 2.0% to 8.0% of fatty alcohol polyoxyethylene ether sodium sulfate, 1.5% to 8.0% of alkyl glycoside, stable Foaming agent 0.5%~3.0%, thickening agent 0%~1.5%, water added to 100%, wherein the mass ratio of fatty alcohol polyoxyethylene ether sodium sulfate to alkyl glycoside is 1:4~4:1, to stabilize foam The agent is modified silicone resin polyether emulsion and / or polyvinylpyrrolidone, and the tackifier is hydroxypropyl methylcellulose and / or polyacrylamide. The foaming agent of the invention has fast foaming, large foaming volume, good foam stability and excellent performance without adding other additives to achieve a good use effect, and can be diluted 30-60 times for the preparation of cast-in-place foam concrete. The raw materials used in the foaming agent of the present invention have excellent biodegradability, safety and environmental protection, and the prepared foaming agent product is green and environment-friendly. In addition, the foaming agent of the present invention has a simple preparation process and mild conditions, and is suitable for industrial production.

The invention relates to a high-temperature foam scrubbing agent for drainage gas recovery. The agent comprises the following components in parts by weight: 10-15 parts of sodium lauryl sulfate, 2-5 parts of alkyl glucoside, 15-18 parts of AES ( Alcohol Ether Sulphate), 20-25 parts of sodium lauryl sulfonate, 5-10 parts of biosurfactant and 27-48 parts of water. The high-temperature foam scrubbing agent has very high thermal stability and high foamability.

The invention discloses a method and a device for constricting bedding gas extraction long drilled holes of soft coal seams. The method and the device are applied to drilling the bedding gas extraction long drilled holes of the soft coal seams, and are characterized in that two types of gas-based fluid including compressed air and stable foams are used as drilled hole washing media, are alternately injected into a drilled hole, reach the bottom of the hole, then flow into annular clearance via flow channels in a drill bit, cool the drill bit and carry coal cinder dust which is generated along with drilling actions of the drill bit at the bottom of the hole, then the drilled hole washing media and the coal cinder dust return the outside of the hole, stable foam flow carries the coal cinder dust, and cools and lubricates drilling tools, and compressed air flow washes the bottom of the hole and pushes stable foam slug to flow. The method and the device have the advantages that the cinder discharge capacity is high, a drilling tool cooling effect is good, orifices are free of dust pollution, the rotation pressure of a drilling machine can be obviously reduced while the drilling capacity of the drilling machine is improved, and the drilling machine can normally drill holes in water-containing coal seams; the flow rates of gas and liquid are regulated under the control of special valve blocks by the aid of the method and the device, the device can be operated easily and conveniently, is small in size and is light, the method and the device are applicable to underground drilling construction operation environments of coal mines, and the like.

The invention relates to an underground gas production pipe string and a gas production method, comprising a velocity pipe string and a double-channel jet pump connected by a first straight joint, and a power gas inlet and an underground fluid inlet corresponding to the double-channel jet pump. The other end of the channel jet pump is connected with a suction pipe through a second straight connector, and the outer diameters of the velocity column, the double channel jet pump and the suction tube are consistent. The downhole gas production string and gas production method of the present invention can effectively perform drainage and gas recovery for gas wells with low pressure, low production and large water production, especially for multi-layer combined production, lower water flooded wells and horizontal wells. Increasing the degree of production of the production zone has significantly slowed down the rate of gas well production and pressure decline, effectively prolonging the stable production period of the gas well.

The invention provides an ethoxy (2) bisphenol S diacrylate and a preparation method thereof. The method comprises the following steps: carrying out esterification reaction on dihydroxyethyl bisphenol S and acrylic acid in a nitrogen protective atmosphere by using toluene as a solvent, organic acid as a catalyst and p-hydroxyanisole as a polymerization inhibitor; and after the esterification reaction finishes, removing the toluene by alkali washing, water washing, drying and depressurizing, recrystallizing the product with ethanol to obtain the ethoxy (2) bisphenol S diacrylate. The method is simple in technique, and can be used for preparing the bifunctional high-refractivity monomer ethoxy (2) bisphenol S diacrylate which simultaneously contains sulfur and benzene ring.