17 results about "Organoclay" patented technology

A composition of an invert emulsion oil-based drilling fluid formulation includes an invert emulsion of an oil phase and an aqueous phase. The oil phase includes an oleaginous fluid and a liquid viscosifier that is a polyhedral oligomeric silsesquioxane (POSS). A method includes introducing an invert emulsion oil-based drilling fluid formulation including an oil phase, an aqueous phase, and a liquid viscosifier including POSS downhole through the wellbore and maintaining wellbore conditions such that the invert emulsion oil-based drilling fluid formulation provides a stable rheological property including one or more of viscosity, yield point, plastic viscosity, gel strength, and electrical stability for a period up to about 96 hours.

The invention relates to the field of organic soil, and particularly discloses drilling fluid organic soil and a preparation method thereof. The preparation method of the drilling fluid organic soil comprises the following steps: crushing calcium bentonite to prepare slurry, adjusting the pH value to 5-6, and acidizing to obtain activated bentonite slurry; adding urea accounting for 10-30% of the mass of the calcium bentonite into the activated bentonite slurry, and carrying out primary intercalation reaction to obtain primary intercalated bentonite slurry; and adding a secondary intercalator accounting for 5-20% of the mass of the calcium bentonite into the primary intercalation bentonite slurry, carrying out a secondary intercalation reaction, and carrying out filter pressing and drying to obtain the organic soil for the drilling fluid. The drilling fluid organic soil has the advantages of being wide in raw material source, low in cost and easy to produce and operate.

The application relates to the technical field of drilling fluids, and discloses an organic clay composition for oil-based drilling fluid and an organic clay for oil-based drilling fluid and a preparation method thereof. The mixture comprises sodium-based montmorillonite, an intercalation aid, a main intercalation agent, a secondary intercalation agent and water, wherein the intercalation aid is a long-chain quaternary ammonium salt, the main intercalation agent is a long-chain alcohol and / or a long-chain acid, and the secondary intercalation agent is a long-chain diol; the temperature resistance of the organic clay for oil-based drilling fluid can reach 260 DEG C.

The application discloses a kind of salt fog resistant nano organic clay rheological agents and preparation method thereof.The rheological agent includes boehmite 8-15 parts, sodium bentonite 24-60 parts, quaternary ammonium salt 20-40 parts, silane coupling agent 1.5-4.8 parts, structure directing agent 1.5-4.5 parts, dispersant 0.1-0.3 parts by weight fraction.Preparation method includes boehmite nanocrystal hydrothermal synthesis, bentonite ultrasonic-high pressure homogenization synergistic exfoliation, quaternary ammonium salt ion exchange intercalation modification, in-situ composite assembly, silane coupling agent surface modification and product forming and other key steps.By the layered structure of boehmite nanocrystal and bentonite sheet layer form synergistic composite, after silane coupling agent chemical bonding modification, build stable organic-inorganic composite structure.The rheological agent shows excellent rheological regulation performance, salt fog corrosion resistance and environmental adaptability, suitable for harsh environment such as marine engineering rheological regulation application.

This invention relates to an oil-based drilling fluid plugging agent and its preparation method, comprising granular materials made of the following components by weight percentage: asphalt powder: 15-28 wt%; organic clay: 6-16 wt%; rock fiber: 25-40 wt%; nano-SiO2: 5-12 wt%; sepiolite: 8-15 wt%; elastic graphite: 8-18 wt%; and polyurethane (TPU) powder particles: 10-20 wt%. This invention features good compatibility, high efficiency, and excellent plugging effect. It can repair formation defects in the wellbore, prevent wellbore leakage, enhance the retention and plugging effect of oil-based drilling fluid in formation microfractures, improve wellbore stability, and effectively plug and strengthen the wellbore.

A composition of an invert emulsion oil-based drilling fluid is provided. The composition may include an oil phase and an aqueous phase. The oil phase may include an oleaginous fluid, an organophilic clay-based solid viscosifier, and a liquid viscosifier including a POSS. Further provided is a method of introducing the composition including the POSS into a wellbore. After introduction of the composition into the wellbore, the method includes maintaining wellbore conditions to provide a stable rheological property for a period up to about 96 hours in an HPHT section of a wellbore.

A sediment-recycling method includes steps of collecting organic clay from sediment, sintering the clay into porous light-weighted material, breaking the porous light-weighted material into porous aggregate, blending the porous aggregate with modifier to provide a compound, turning the compound into pellets, melting the pellets to provide liquid, and molding the liquid into a final product. The weight of the porous aggregate is 80% of the weight of the compound and the weight of the modifier is 20% of the weight of the compound.

This invention belongs to the field of oil-based drilling fluid technology for oil and gas field drilling, specifically relating to a water-in-oil drilling fluid with a synergistic thickening effect of temperature and pressure and its application. The drilling fluid comprises a base oil phase, a brine phase, organic clay, a high-temperature resistant emulsifier, a wetting agent, a thickening regulator, a flow stabilizer, an alkaline substance, a filtration loss reducer, a plugging material, and a weighting material. The thickening regulator is a compound composition of a cyclic polyacid or its modified organic cyclic acid and an amidation product of an organic amine, possessing a multi-branched or network structure, which can significantly improve the low-shear rate viscosity and dynamic shear force of the drilling fluid under high temperature and high pressure. The plugging material in this invention is a temperature-sensitive intelligent polymer microsphere with temperature-responsive characteristics, capable of shrinking and agglomerating at high temperatures to achieve adaptive plugging. The drilling fluid of this invention exhibits excellent rheological stability, suspension capacity, and plugging performance under high temperature and high pressure conditions, making it suitable for the development of deep, ultra-deep, and extra-deep oil and gas wells.

The invention relates to the technical field of test sample preparation, in particular to a method for extracting, preparing and detecting an organic clay complex in shale, which comprises the following steps: after more accurate organic clay complex particle extraction is carried out through three-level control, respectively collecting X-ray diffraction spectrum and attenuated total reflection infrared spectrum data of the organic clay complex; performing wavelet denoising process correction on attenuated total reflection infrared spectrum data of the organic clay complex, specifically, performing self-adaptive correction on a wavelet threshold value of each layer through baseline offset response represented by interlayer information change difference; therefore, the noise processing process has better adaptivity and robustness when reconstruction is carried out based on the corrected wavelet threshold, so that the finally obtained corrected infrared spectrum data is more accurate, and more accurate organic clay complex detection is carried out in combination with an X-ray diffraction spectrum.

The invention belongs to the technical field of oil-based drilling fluids for oil and gas field drilling, and particularly relates to a water-in-oil drilling fluid with a temperature and pressure synergistic thickening effect and application. The drilling fluid comprises a base oil phase, a salt water phase, organic clay, a high-temperature-resistant emulsifier, a wetting agent, a thickening regulator, a flow type stabilizer, an alkaline substance, a filtrate reducer, a plugging substance and a weighting material. Wherein the thickening modifier is a compound composition of cyclic polyatomic acid or modified organic cyclic acid of the cyclic polyatomic acid and an amidation product of organic amine, has a multi-branched chain or net-shaped structure, and can remarkably improve the low-shear-rate viscosity and the dynamic shear force of the drilling fluid at high temperature and high pressure; the plugging substance is a temperature-sensitive intelligent polymer microsphere, has a temperature response characteristic, and can be shrunk and gathered at a high temperature to realize self-adaptive plugging. The drilling fluid disclosed by the invention shows excellent rheological stability, suspension capacity and plugging performance under high-temperature and high-pressure conditions, and is suitable for the development of deep, ultra-deep and extra-deep oil and gas wells.

The invention discloses a salt spray resistant nano organic clay rheological agent and a preparation method thereof. The rheological agent is prepared from the following components in parts by weight: 8 to 15 parts of boehmite, 24 to 60 parts of sodium bentonite, 20 to 40 parts of quaternary ammonium salt, 1.5 to 4.8 parts of silane coupling agent, 1.5 to 4.5 parts of structure-directing agent and 0.1 to 0.3 part of dispersing agent. The preparation method comprises the key steps of hydrothermal synthesis of boehmite nanocrystals, bentonite ultrasonic-high pressure homogenization synergistic stripping, quaternary ammonium salt ion exchange intercalation modification, in-situ composite assembly, silane coupling agent surface modification, product forming and the like. A layered structure of boehmite nanocrystals and a bentonite sheet layer are synergistically compounded, and a stable organic-inorganic composite structure is constructed through chemical bonding modification of a silane coupling agent. The rheological agent shows excellent rheological regulation performance, salt spray corrosion resistance and environmental adaptability, and is suitable for rheological regulation application in severe environments such as ocean engineering and the like.

The present application relates to heavy-duty anticorrosive coating technical field, disclose a kind of preparation anticorrosive coating method and anticorrosive coating.The method includes: (1) coupling agent and diluent are contacted first, obtain mixed solution I;(2) the mixed solution I and epoxy resin are contacted second, obtain mixed solution II;(3) mixed solution II and dispersing agent, defoaming agent, defoaming agent, rheological agent, antirust pigment, barium sulfate, titanium white, leveling agent are contacted third, obtain the anticorrosive coating;The rheological agent is mass ratio 1:0.2~3.75 of fumed silica I and organic clay;The specific surface area of fumed silica I is 150~190m 2 / g;The coupling agent is titanium alloy nano chelate.The anticorrosive coating provided by the present application has high coating density, good adhesion, high hardness, good wear resistance, flexibility and impact resistance, and excellent acid, alkali and salt resistance.

A composition for personal care is described. The composition comprises: at least one personal care ingredient; and a rheological gel comprising: (i) an organoclay; (ii) a glyceride activator; and (iii) a carrier. A method of preparing the composition and a method of applying the composition are also described. A rheological gel for use in a personal care composition is also described.

The invention provides nano organic clay universal for oil and water. The nano organic clay comprises the following components in parts by weight: 60-80 parts of montmorillonite, 30-40 parts of hydrotalcite and 20-40 parts of polyhydroxy quaternary ammonium salt, wherein the structural formula of the polyhydroxy quaternary ammonium salt is shown in the specification, in the formula, R1 is a C1-C29 straight chain alkyl group, R2 is a C1-C10 straight chain or branched chain, saturated or unsaturated alkyl group, or aromatic hydrocarbon group, R3 is a C1-C10 straight chain or branched chain, saturated or unsaturated alkyl group, R4 is a C1-C10 straight chain or branched chain, saturated or unsaturated alkyl group, and M is Cl or Br. In an oily system, a long carbon chain of the polyhydroxy quaternary ammonium salt extends outwards, so that the clay shows excellent lipophilicity and can be efficiently thickened as traditional organic clay; in a water-based system, polyhydroxy groups extend outwards to provide strong hydration and steric hindrance, so that the clay can be dispersed and thickened like a high-performance synthetic thickening agent, and the clay can show high and stable viscosity and thixotropic index in various media under the same addition amount.

An organoclay composition. The organoclay composition can be used as a thickening rheology additive, and can be used in the fields of paint, ink, oil field drilling, etc. The organoclay composition mainly consists of montmorillonite, sepiolite, and a long-chain alkyl quaternary ammonium salt, and further comprises a small amount of an organic additive; and the organoclay composition is prepared by means of a specific process. The organoclay composition modified by the process not only has good dispersion, suspension and thickening properties, but also has the advantage of high rheological properties, and can effectively promote the application in low-polarity systems.

This application relates to the field of polymer materials, specifically disclosing an organoclay-modified epoxidized natural latex insulating sleeve and its preparation method. The insulating sleeve comprises the following raw materials in parts by weight: 100 parts of epoxidized natural rubber latex concentrate, with an epoxidation degree of 50%; 1 part organoclay, Cloisite 30B; 2.7–3.0 parts dispersant; 1.0 part sulfur; 0.8 parts vulcanization accelerator; 1.0 part zinc oxide; 0.5 parts stearic acid; 1.0 part antioxidant; 2.0 parts plasticizer; 0.5–1 part glyceryl monostearate; 2–4 parts potassium hexatitanate whiskers; and 2–4 parts nano-hydroxyapatite nanofiber scaffold. The preparation method includes: organoclay pre-dispersion treatment; preparation of epoxidized natural composite latex; latex curing; sleeve molding and post-treatment. The insulating sleeve of this application simultaneously achieves good mechanical properties, flexibility, and aging resistance.

The organophilic clay comprises a smectite-type clay ion exchanged with quaternary ammonium ions, where at least 75 mol-% of said quaternary ammonium ions are bis-(2-hydroxypropyl)-dimethylammonium fatty acid esters and at least 90% of the fatty acid moieties of the bis-(2-hydroxypropyl)-dimethylammonium fatty acid esters have a structure RC(O) with group R being a linear alkyl or alkenyl group containing from 9 to 21 carbon atoms. The organophilic clay is useful for thickening oil based compositions, in particular drilling fluids for drilling oil or gas wells, comprising an oil phase.