298results about "Drilling accessories" patented technology

The invention refers to a kind of positive ion double surface activating agent in third petroleum production chemical oil-displacing agent, who is expressed by m-s-m, m represents the carbon atom quantity of activating agent alkyl radical, s represents the carbon atom of chain connection radical. S=2, 3, 4, 5, 6, m=10, 12, 14, 16, 18, the activating agent can be used singly, it also can be used with other surface activating agent. It needn't add in alkali, thus it is harmless to formation, it saves oil exploit cost, and it is stable, it has excellent property for decreasing the tension of oil / water interface, and overcomes that current oil-displacing agent induces the oil displacing efficiency falling because of the color spectrum detachment phenomenon.

The composite oil-displacement agent consists of polymer 0-0.3 wt.%, surfactant 0.05-0.6 wt% and water 99.1-99.95 wt%, and is produced in kettle reactor with coagulated petroleum fraction from raw oil. It has surfactant concentration not higher than available systems, high interface tension reducing effect and stable performance. The ternary composite oil-displacement agent has no alkali and saltwhile reaching superlow interface tension and thus no alkali scale formed, no loss in polymer viscosity and viscolerasticity. In the compounding of the composite oil-displacement agent, common sewagemay be used and this produces certain environment protection effect.

The temporary leakage-stopping agent is developed for stopping leakage in well drilling and reducing damage to oil reservoir. It consists of swelling material, bridging material, stuffing material and inhibitor material. The swelling material is nanmu rood powder, contton boll and other water swelling material of grain size below 838 micron and capable of forming fibrous gel; the bridging material is flaky mica of grain size 97-381 micron; the stuffing material may be common or light calcium carbonate of grain size below 117 micron; and the inhibitor material may be polyacrylonitrile sodium salt, polyacrylonitrile potassium salt, polyacrylonitrile ammonium salt, potassium humate or their mixture.

A synthetic basic well-drilling liquid is proportionally prepared from the basic liquid composed of basic liquid and aqueous solution of CaCl2, primary emulsifier, secondary emulsifier, wetting agent, flowing regulator, filter loss reducer and organic earth through mixing. Its advantages are no pollution and high effect to protect oil-bearing stratum.

A salt-resistant pectinate polymer as thickening agent for controlling flowability for higher recovery rate of petroleum in oil field is prepared from monomers A and B through copolymerization. Its advantages are high water solubility and thickening power to water medium, and excellent salt resistance.

A viscous crude emulsion thinner comprises, (1) anionic surface active agent selected from petroleum sulfonate formaldehyde condensate and lignin sulfonate, (2) non-ionic-negative ionic surface active agent selected from non-ionic-phosphate salt, selected from non-ionic-sulfuric salt, non-ionic-carboxylate and non-ionic-petroleum sulfonate and (3) water, wherein the weight ratio of anionic surface active agent and non-ionic-negative ionic surface active agent is 1:0.2-10, the water content is 0.5-9 times of the total surface active agent content. The viscous crude emulsion thinner possesses the advantages of ore salt resistance capability and high viscosity reduction rate.

The invention relates to a novel organic boron cross linking agent for fracturing and fracturing fluid for deferring cross bonding vegetable glue, wherein the preparation method comprises the steps of, reacting sodium borate with multicomponent aldehydes (e.g. ethanedial), adding polyvalent alcohol amine (e.g. triethanolamine) for complete reaction, forming component an of organic boron cross linking agent, and organic boron component B of 20-30% caustic soda liquor solution, mixing component an and B in the proportion of 100:5-100:15 to form the organic boron cross linking agent. While the organic boron deferring cross bonding vegetable glue fracturing fluid comprises vegetable glue polymer, pH regulator, glue breaking agent and organic boron cross linking agent.

The invention discloses a particle stabilized emulsion system, wherein calculated by 100 weight parts, the constituents include mineral oil or solid paraffin 10-40 parts, anionic surface active agent 0.5-1.0 part, reactive nano solid particle 0.5-5 parts, and balancing water. The invention also discloses the process for preparing the emulsion system.

The invention refers to an oil rinse liquid for mud and the manufacturing method. It resolves the problem that the second interface cementation is bad. Its character lies in: add 2.5-3.5 shares sodium hydroxide and 4.0-5.0 shares ethyl diamine fourthacetic acid to clean water and blend to make them dissolve completely, then add 12.0-12.5 share oleic acid and blend for 20-30 minutes, add 2.0-2.2 shares dideakly natrium sulphate and 5.0-5.5 shares alkyl fatty ethanol poly-oxy ethene aether and blend for 55-65 minutes, finally add in the organic silicon anti-foamer. It can change the "oil wet" into "water wet", improve the cementation of cement interface and enhance the quality of fixing mine.

There is a method of high stickly thick water association polymer degreaser, its character is that the propylene acyl (AM)-natrium acrylate (NaAA)-N-p-butyl benzene propylene acyl (BPAM) thick water association water soluble polymer is confected into 0.1-0.3 wt% thickness, the thickness of surface active agent is 0.01-1 mmol / liter and the thickness of NaCL is 0.5-1.5 wt5, they are added into blending pot which has blender and thermometer, they are blended under 25-40 degree C equably, the degreaser is got.

A rotary pump having thrust bearings includes a system for equalizing the loading on the thrust bearings. The thrust bearings are each supported on pistons that are in fluid communication with a hydraulic circuit. The hydraulic circuit has substantially the same pressure throughout, thereby floating each piston at the same pressure to provide an equal support force to each thrust bearing via each piston.

A thrust bearing assembly is provided, including a thrust ring defining a thrust face and an opposing thrust ring defining an opposing thrust face. At least one polycrystalline diamond element is coupled with the thrust face and defines an engagement surface. The opposing thrust ring includes a diamond reactive material. In operation, the engagement surface is in contact with the opposing thrust face. Also provided are methods of making, assembling, and using the same, as well as to systems and apparatus including the same.

A rotary pump having thrust bearings includes a system for equalizing the loading on the thrust bearings. The thrust bearings are each supported on pistons that are in fluid communication with a hydraulic circuit. The hydraulic circuit has substantially the same pressure throughout, thereby floating each piston at the same pressure to provide an equal support force to each thrust bearing via each piston.

A microfoam generating agent for low-pressure or under-balance drilling of well and a well-drilling liquid containing it are disclosed. Their preparing proesses are also disclosed. Said well-drilling liquid features fine foam, high resistance to high temp (more than 120 deg.C), salt and calcium, low density, and high effect on protecting oil-bearing stratum.

The foaming agent has materials including main foaming agent, foam stabilizer and foam stabilizing assistant as well as water. The main foaming agent is polydodecanol oxyethylene ether sodium sulfate; the foam stabilizer is coccinin monoethanolamine, betaine, peroxamine and methyl cellulose condensate; and the foam stabilizing assistant is sodium chloride. The preparation process of the foaming agent includes setting the main foaming agent into reactor, adding foam stabilizer and water while stirring to dissolve and react, adding rest of water and foam stabilizing assistant via stirring to obtain the product.

A heating apparatus for induction heating is disclosed. The heating apparatus may comprise a bearing ring, at least one bearing element disposed in the bearing ring, and a braze material adjacent to the at least one bearing element and the bearing ring. The heating apparatus may additionally comprise an inductor positioned radially adjacent to at least a portion of the bearing ring. A current source may be electrically coupled to the inductor. A bearing orienting member may also abut a surface of the at least one bearing element. The bearing orienting member may orient a surface of the at least one bearing element. A heating method is also disclosed.

The invention discloses a multifunctional drilling fluid additive. By 100 weight percentages, the components are: 10~30 wt. paraffin, 10~30 wt. white oil, 5~15 wt. non-ionic surface active agent, 0.02~5 wt. cationic surface active agent and water. The invention also discloses the method for preparation of the drilling fluid additive: mixing the paraffin and white oil into oil phase; mixing the non-ionic surface active agent and cationic surface active agent into mixed surface active agent; adding the oil phase and mixed surface active agent into the reactor, heating; then adding proper volume preheating water into the reactor till opaque viscous gel phase occurring in the architecture; agitating with rotary speed of 2000~3000rpm and keep the emulsifying temperature during reaction; adding the rest of water into the reactor and stop heating, agitating with 1000rpm, make the emulsion cool down to ambient temperature and get the paraffin pinpoint emulsion.

An apparatus is provided that includes a diamond bearing surface positioned in sliding engagement with an opposing bearing surface of a diamond reactive material. The opposing bearing surface is hardened via a material treatment.

The invention discloses a submicron polymer active microsphere profile-control oil-displacement agent which is an active polyacrylamide gel with a molecular weight of 1-8 million, and the agent is prepared through a dispersion-polymerization synthesizing method, wherein a novel transportable oil displacement agent is obtained.

The industrial solid foaming agent composition is used in foaming deairing well drilling and provides excellent foaming performance and foaming stability. The solid foaming agent composition features that the solid foaming agent has anionic surfactant as main material accounting for over 25 wt% and contains also stabilizer, tackifier, co-solvent, chelating agent and other components, and all the components are mixed homogeneously and extruded to form the solid foaming agent. When used, the solid foaming agent added into water at 25-100 deg.c to form the foam liquid. The solid foaming agent has the advantages of high foaming performance, high resistance to high calcium ion water, etc.

This invention has disclosed one kind and missed strata and bored and stopped up leaking at the same time seriously, well drilling liquid, it makes up, weight share: (A) Base thick liquid: Alta-mud 4-6, soda ash 0.2-0.3, water is 100, additive 1) carry and glue pharmaceutical SD-LHV 0.5-3, 2) lower and strain and lose pharmaceutical SK-III 0.5-2.5, 3) the flowing type regulates pharmaceutical SD-R 0.5-2.5, 4) the density regulates pharmaceutical SD-D 0.5-5, 5) pack and strengthen pharmaceutical MF-1, 6) join pharmaceutical MD-III 2-15, 7) the brige stops up pharmaceutical MD-III 8-20. This invention has function more, have a good adaptability, can already be used as stopping up and leaking the liquid, can be used as the well drilling liquid, can either use and miss layer apply Gao to permeate layer low-voltagly or, crack cave with stalactites and stalagmites type stratum, and leak and stop up with the characteristics, such as layer, etc.. It is miss to is it stop up leak and well drilling of the craft to get into at the same time stratum seriously to apply mainly.

This invention involves the surplus activation and pollutes proteins as the application of the foam well drilling liquid and prepares the method, utilize surplus active mud person who foam of protein is it foam the pharmaceutical as foam well drilling to use it for, it is to use active mud the impractical law or alkali law that it prepares the method, yes temperature is 110-148 deg.C hydrolysis one hour under the terms, it is appear impurity win protein liquid, and then go protein liquid after the impurity transfer pH value to filter, to a little becoming used as preparing hydrolysising proteins of foam well drilling liquid alkalinly promptly, and then make and foam pharmaceutical and dispose the foam well drilling liquid with the protein hydrolysats. Invention this utilize surplus active mud characteristic of foaming of protein, hydrolysis active mud protein regard as foam well drilling liquid foam the pharmaceutical, its bubble is of good performance, the foaming amount is big, can produce a large number of foam after contacting the gas.

The invention belongs to the manufacturing field drilling bits, in particular a method for manufacturing a drilling bit. The method for manufacturing the drilling bit comprises the steps of snagging,slot rolling, cutting and sharpening, coarse grinding before heat treatment, heat treatment, coarse grinding of excircle, handle flat head chamfering, opening, fine grinding of excircle, edge finishing and cleaning. The invention has the advantages of low cost, excellent performance and longer service life.

The invention provides a nanometer surface active agent for oil exploitation and method for making same, the surface active agent is prepared from nano material, 4A-zeolite, sodium carbonate, sodium sulfate, sodium silicate, polyoxythylene fatty alcohol ether sodium sulfate, dodecylbenzene sulfonic acid sodium, dodecylbenzene sulfonic acid and aromatic hydrocarbon dissolvent through mixing, heating, and stabilizing.

The invention relates to a fracturing working liquid for container rock containing travertine, which comprises thickening agent 0.15-1.5%, surface active agent 0.002-0.5%, demulsifying agent 0.002-0.5%, clay stabilizer 0.01-10.0%, bactericidal agent 0.002-1.0%, emulsifying agent 0.002-0.5%, buffering agent 0.002-0.5%, defoaming agent 0.002-0.5%, cross linking agent 0.002-0.5%, cross linking control agent 0.002-0.5%, demulsifying agent 0.002-0.1%, catalyst 0.0002-0.1%, diesel fuel 1-90%, and balancing water.

A cutting tool having a monolithic construction includes an injection molded shank, and an extruded fluted portion extending forwardly from the shank, the shank and the fluted portion having a monolithic construction. The process for making the cutting tool includes forming a cutting tool green body by injection molding a shank of the green body and extruding a fluted portion of the green body such that the shank and the fluted portion have a monolithic construction; and then sintering the cutting tool green body.

The viscosity reducing and drag reducing agent for high viscosity well consists of C7-C10 aromatic hydrocarbon organic solvent, oil soluble water dispersed polyether demulsifier, lignin modified amphoteric polymer surfactant, reverse dispersion stabilizing regulator, carbon chain linear polymer as drag reducing agent and synergis in certain proportion. The viscosity reducing and drag reducing agent is injected into wall make high viscosity water-in-oil thick oil become oil-in-water emulsion for extraction. Oil as the dispersed phase in continuous water phase results in greatly lowered visocisty of the thick oil and facilitates the oil extraction. The present invention is simple in field application, has applicable raw oil viscosity range of 100-1000 mPa.s and pH 6-8, no corrosion to pipe column and no environment pollution.