358results about How to "Easy to use on site" patented technology

The invention provides slippery water for shale gas fracturing. The slippery water is prepared from the ingredients in percentage by weight: 0.08-0.3wt% of an emulsion friction reducer, 0.3-1.0wt% of a clay stabilizer, 0.3-1.0wt% of a discharge aiding agent, 0.5-2.0wt% of potassium chloride, 0.05-1.0wt% of a bactericide and the balance of water. Specifically, the emulsion friction reducer is an anionic polyacrylamide copolymer, is prepared through taking acrylamide as a main body structural unit, adding an ionic structural unit and a functional monomer and copolymerizing, and has the viscosity-averaged relative molecular mass of 6-9 millions and the intrinsic viscosity of 1,600-1,860mL/g. According to the slippery water provided by the invention, the used additives are high in dissolution rate and uniform in dispersion, and during field application, the on-line preparation of the slippery water can be realized by using continuous preparing or in an on-line preparing device, so that the technical requirements of a shale gas reservoir on high-displacement (10-20m<3>/min) and high-liquid-volume (10,000-50,000m<3>) fracturing construction are met.

The invention relates to a three-dimensional point coordinate measuring method and a measuring apparatus thereof. According to the invention, the problems on the flexibility of the system and the measuring speed are solved; therefore, the field measurement and the measurement of points that are not easy to be measured can be allowed, and the manufacturing cost can be reduced. According to the scheme of the method, a camera coordinate system is established; three-dimensional coordinates of marking points are calibrated in a light pen coordinate system, wherein the marking points are fixed on a measuring probe; spatial three-dimensional coordinates of implementation measuring time of a set of fixed marking points on the measuring probe are calculated in the camera coordinate system, and three-dimensional coordinates of the set of fixed marking points on the measuring probe are also calculated in a measuring probe coordinate system; and a logical relation of the two coordinate systems of the implementation measuring time is established; a three-dimensional coordinate of a spherical point of a spherical measuring head is calibrated in the measuring probe coordinate system; based on the above results, when the measuring is carried out, a spherical measuring head in the front of the measuring probe is contacted with a measured point to obtain a measuring point, and a coordinate of the measuring point is calculated. The measuring apparatus comprises supports, cameras, a measuring probe, a matched computer and matched software. The apparatus has two cameras, which are fixed on supports. The spherical measuring head is fixed at the front of a T-shaped rod, and a set of marking points, which are in a T-shaped form, are fixed on the T-shaped rod. According to the invention, the system has good flexibility, and the measuring speed is fast; besides, the measurement of a measuring point that is not easy to be measured is also allowed, and the cost is low.

A process for preparing the alpha-olefine as the drag reduce used for delivering oil in pipeline includes such steps as loading monomers into reactor, adding catalyst while stirring in the condition of isolating air, adding the oil-soluble polyester, polyether or ester-ether copolymer solution to which the alpha-olefine polymer is not dissolved, and reacting at -50-20 deg.C for 3-10 days. Its advantages are simple process, and high molecular weight, high effect, high stability and low viscosity of product.

The invention discloses a titanium carbide ceramic-enhanced visible arc self-shielded flux-cored wire for high-chromium cast iron, and the flux-cored wire provided by the invention comprises the following chemical components in percentage by weight (wt%): 60 to 70% of high-carbon ferrochrome, 1 to 2% of high-carbon ferromanganese, 1 to 3% of ferrosilicon, 1 to 3% of ferrovanadium, 1 to 3% of ferromolybdenum, 2 to 8% of TiC, 15 to 25% of graphite, and 1 to 2% of aluminum/magnesium powders; and the flux-cored wire has a low-carbon steel strip serving as an outer wrapper. The flux-cored wire is made by use of flux-cored wire production equipment which has a flux powder filling rate of 37%to 45%, and drawn by a wire drawing machine 2 to 5 times until the outside diameter of the flux-cored wire reaches the level F4. The flux-cored wire disclosed by the invention can be applied to overlay-welding under the conditions of no preheating before welding and no heat treatment after welding, and is very convenient in on-site use. By virtue of overlay-welding using the flux-cored wire disclosed by the invention, deposited metals have a high hardness up to HRC63-67 and better wear resistance andare not liable to stripping, and the service lives of large-sized high-chromium cast iron wear-resistant parts are 2 to 4 times those of integrally-machined parts.

This invention relates to an optical measuring technique of three-dimensional coordinates. The measuring system of optical pen-style portable three-dimensional coordinates comprises CCD camera, computer and optical pen used as measurement sensing part. There install three optical targets in the pen and a ball probe on the pen point. The centers of the three optical targets and the ball probe lie in the same line. The optical targets are obtained by the camera, which sends the image to computer, thus realizes the three-dimensional coordinates measuring of contact points through computer. The advantage of this invention lies in that it can flexibly adjust the camera position according to the traits of the object to be measured and facilitate the application on spot and increase the flexibility of the system.

The present invention discloses a preparation method of light foamed concrete and its main machine. Said light foamed concrete is made up by using concrete, foaming agent and compressed air through a certain preparation method. Said preparation method includes metering and mixing regulation control technique by adopting combination of manual regulation valve and adjustable electronic regulation valve and pneumatic diaphragm pump slurry conveying technique. Its main machine includes compressed air supply device, foam preparation device and slurry and foam mixing device, etc.

The invention relates to a mobile power box, which has the advantages of independent use, safety and convenience. The mobile power box comprises a box body; the box body is provided with a winding roller inside in a relative rotation way; a control panel is positioned above the winding roller; a conducting wire is wound onto the winding roller; one end of the winding roller is connected with a crank; and the crank is positioned outside the box body. One side wall in the box body is fixedly connected with a rotary supporting seat, and the side wall of the box body opposite to the rotary supporting seat is provided with a shaft passing hole; one end of the winding roller is provided with a rotary supporting shaft, the other end of the winding roller is provided with a rotary hole passing shaft, the rotary supporting shaft is positioned in the rotary supporting seat, the rotary hole passing shaft passes through the shaft passing hole, and the free end of the rotary hole passing shaft is connected with the crank; and the side wall of the box body is provided with a conducting wire inlet and outlet which corresponds to the winding roller, and the conducting wire passes through the conducting wire inlet and outlet. The mobile power box belongs to a 220V power safety control device, and is suitable for various users or enterprises using temporary power supplies.

The invention relates to a polycore cable sequencing method based on digital frequency-modulation encoding and a device thereof. The device consists of a transmitter and a receiver, which are connected with the two ends of a polycore cable to be detected; during measurement, the transmitter designs digital encoded signals for each cable to be detected and sends the encoded signals to the cable to be detected after frequency modulation; a receiving end connects any two cables by a measuring probe, the received signals of the two cables obtain effective received signals of the cable marked as 'plus' end through a difference circuit; the effective received signals are modulated, thus obtaining the sequence numbers of connected cables and displaying the result. The measuring device adopting the measuring method of the invention has quite small volume is convenient for being used on site. No public reference lines are needed to during measurement, In addition, the adoption of the measuring method of the invention ensures higher reliability of the measurement and long-distance test.

The invention discloses an aero-engine rotor-stator rubbing position identification method based on the application of cepstrum and belongs to the technical field of aero-engine fault diagnosis. According to the method, first, aeroengine case vibration acceleration signals of different rubbing positions of an aero-engine are obtained; next, by means of the cepstrum analytical method, Low-dimensional feature parameters are extracted, and training samples are formed; then, training is carried out on a training sample set by means of sorting algorithms, and a rubbing position sorter is obtained; last, rubbing positions are identified with the trained sorter. Only with an acceleration sensor, can rubbing positions of the aero-engine be effectively identified. Compared with the prior art, the method is simple and suitable for real-time diagnosis in the field.

Organic antifriction composition for drilling fluid is composed of, prepared in 100%, 45-65 parts of organic acidic metal salt, 15-35 parts of mineral oil, 5-10 parts of emulgator, and 8-15 parts of extreme-pressure additive. During preparation, the components are proportionally added into a reactor and react for 4-6 hours at 50-90oC, producing yellow or brown liquid which is antifriction composition. The antifriction composition can form a high-intensity extreme-pressure lubricating film to be antifriction through its organic negative ions adsorbing to the surface of a casing or a drilling rod, and can replace or partially replace lubricant, using cost of lubricant is reduced, and the antifriction composition is applicable to highly-deviated wells, horizontal wells, high-density drilling fluid and long-cycle prospecting wells.

The invention relates to an underground reservoir porosity measurement method during drilling. When a drilling time meter, a gas logging apparatus, a comprehensive logging meter, a drilling instrument and other logging devices are used for collecting and recording logging drilling time, a reservoir porosity measurement value during drilling POR is determined by a cover layer drilling time ROPn, a reservoir drilling time ROPs, a cover layer reference porosity PORb and an area ground surface incompact formation porosity PORa. A ratio RROP of the cover layer drilling time ROPn and the reservoir drilling time ROPs is used for evaluation of the reservoir. The evaluation result is shown to users or supplied to the users through the internet so that the users can evaluate the property of the reservoir and reservoir fluid. The underground reservoir porosity measurement method during drilling is convenient to use on site, easy to operate, wide in application range and reliable in results. The absolute value of relative error is less than or equal to 15%, and the absolute value of absolute error is less than or equal to 2%. The underground reservoir porosity measurement method during drilling can meet the requirement for logging evaluation reservoir and judging the property of reservoir fluid.

The invention relates to an AC test device for operation characteristics of transformer on-load tap changer switch, which belongs to a test device. A power supply switch is connected with an internal power module; the internal power module and an external power interface are respectively connected with a control switch; the control switch is connected with a tested interface of the on-load tap changer; the tested interface of the on-load tap changer is connected with a voltage and current sensor; the voltage and current sensor is connected with an acquisition board; the acquisition board is connected with a master processor; the master processor is connected with a printer, a memorizer and a displayer. The device has the advantages that the applicable scope is wide; the operation characteristics of a single-phase transformer and an electric reactor tap changer are tested; an indirect tap changer test mode is provided for some special transformers, such as a rectiformer; the transformer tap changer works under the AC working condition as the test by AC method is closest to the actual operating condition.

The invention discloses a compound high-temperature acidizing corrosion inhibitor based on pyridine quaternary ammonium salt. The compound high-temperature acidizing corrosion inhibitor is prepared from components in parts by weight as follows: 20-30 parts of a corrosion inhibitor main agent, 2.0-2.5 parts of a synergist, 0.2-1.0 part of a dispersing agent, 0.5-1.0 part of propargyl alcohol, 0.2-1 part of an emulsifier, 2.5-6.0 parts of triethanolamine, 0.8-1.0 part of a surfactant and 60-70 parts of a solvent, wherein the corrosion inhibitor main agent is the pyridine quaternary ammonium salt prepared from 3-picoline and benzyl chloride through a reaction; the synergist is a mixture of potassium iodide, antimonous oxide and antimony trichloride in a weight ratio being (2-3):(1-2):(1-2). According to the compound high-temperature acidizing corrosion inhibitor based on the pyridine quaternary ammonium salt, the requirement of oilfield acidizing construction at the temperature of 120-160 DEG C is met, a corrosion inhibitor formula which is stable in property and good in corrosion inhibition performance, facilitates site construction and has cost advantage is provided, and the corrosion inhibitor has the characteristics that compatibility with commonly used acidizing additives in site, commonly used imidazoline corrosion inhibitors and other types of quaternary ammonium salt corrosion inhibitors is good, mixed use can be realized, construction is convenient and highly safe, no pollution is produced, transportation and storage are convenient, the cost is low and the like.

The present invention provides a polysiloxane resin (PAOS) containing a side group with alkoxy, the preparation method and application. The methyl silicone containing hydrogen, alcohol, solvent and catalyst are used to prepare PAOS under certain conditions. The PAOS can react with water in the air at the room temperature or under heated conditions; the liquid state is changed into the solid state to form the sealing material matrix resin with no foam at a high temperature and of chemical corrosion resistance and high-temperature resistance; the solidification method is simple and easy for scene use; the PAOS also can be used as crosslinker for hydroxy-terminated polysiloxane; the PAOS has the enhancing function in situ while crosslinking. The present invention has good application prospects in high-temperature resistant composite materials, such as matrix resin, coating, adhesive, sealant, crosslinker and so on.

The invention discloses a preparation method of a phenol amine aldehyde block polyether low-temperature demulsifier and the low-temperature demulsifier prepared by means of the method. The method comprises the following steps: firstly performing condensation polymerization on a phenol matter, an amine matter and an aldehyde matter to prepare phenol amine aldehyde resin; and then performing a reaction with an epoxy compound to obtain final product. The demulsifier prepared by the preparation method disclosed by the invention has the advantages of being good in alkaline solubility, good in cleaning effect, free of irritant smells, convenient for field use and the like. The most applicable temperature is 45 DEG C, but the demulsifier still has a relatively good effect when the temperature is low to 41 DEG C. The demulsifier has an excellent demulsifying effect, has a good effect on the condition that the demulsifying difficulty of a low-temperature produced liquid of crude oil in a superficial layer is great and the oil content of the demulsified aqueous phase is great, and is suitable for the condition that the demulsifying difficulty of the produced liquid at the low temperature is great and the oil content of the demulsified aqueous phase is great.

The invention relates to an assistant mounting die for a support and a construction method thereof. The die comprises an assistant die plate, a plurality of wooden wedges, a plurality of anchor bolts, a plurality of embedded pipes and a plurality of bolt sleeves, wherein the embedded pipes are vertically arranged inside the top end of a pier column at intervals in a detachable mode, and are used for forming preserved bolt holes; a bolt sleeve is mounted in each preserved bolt hole; the assistant die plate is horizontally arranged above the preserved bolt holes, and a plurality of bolt positioning holes are formed in the assistant die plate; the wooden wedges are arranged between the top surface of the pier column and the bottom surface of the assistant die plate at intervals; the lower end of each anchor bolt is in threaded connection to the interior of the corresponding bolt sleeve after penetrating through the corresponding bolt positioning hole. The assistant mounting die solves the problem that whether the support is mounted in place and whether the contact with a cushion is tight and gapless. In practical construction, the assistant mounting die is lighter in weight, and the plane positions and heights of the bolts are conveniently adjusted; moreover, the assistant mounting die is simple and convenient to manufacture and convenient to assemble and disassemble, and the mounting method is simple and easily understood and is beneficial for use in site operation.

The invention relates to a multi-component small powder automatic packaging palletizing method, belonging to a small powder scale automatic weighing batching apparatus. The method changes the overall processes of putting plastic bag into a charging basket, taking out pockets, closing bag mouths, palletizing the pockets into a storing vehicle before mixing former rubber, during matching various small powders according to the formulation into the full mechanical automation. The method is implemented by the following devices: a bag machine 14, a plastic bag clamping unit 4, a special pocket 5, a clamping unit actuating device 20, a transmitting bag and opening bag mouth device 15, a putting bag device, a taking bag device, a heat seal capper 18, a stack device, a pocket positioning device 21, an empty pocket positioning device 33, a pneumatic control system, an electronic control system and an PLC program control system.

The invention discloses a temporary plugging agent for drilling fluid, and belongs to the technical field of petroleum drilling. The temporary plugging agent is prepared from the following raw materials in percentage by weight: 60 to 70 percent of hexadecane, 0.5 to 1 percent of catalyst persulfate, 10 to 20 percent of phenol, 10 to 20 percent of formaldehyde, and 1 to 2 percent of cationic surface active agent. The preparation method comprises the following steps of: 1, adding the hexadecane liquid into a reaction kettle, heating the reaction kettle to 50+/-5 DEG C, adding the phenol, stirring the mixture, controlling the temperature to be 80+/-5 DEG C and the pressure to 2+/-0.5MPa, slowly adding the catalyst, adding the formaldehyde solution after 2 hours, stirring the mixed solution for 2 hours while continuously controlling the temperature to 40+/-5 DEG C, adding the surface active agent, and stirring the mixed solution for 2 hours; and 2, relieving the pressure in the reaction kettle to normal pressure, extracting the mixture, drying the mixture at the temperature of 100+/-5 DEG C, and then grinding the dried mixture to obtain the temporary plugging agent. The softening point temperature of the temporary plugging agent is within a wide range from 70 to 140 DEG C, so that the temporary plugging agent can almost meet the needs of all layers of earth.

The invention provides a remediation agent for cadmium contaminated soil and a soil remediation method. The remediation agent comprises magnesium oxide, sepiolite, magnesium calcium-based bentonite, and zeolite, and can be used for in-situ remediation performed on the cadmium contaminated soil. The remediation agent takes magnesium oxide as a main passivator component for cadmium, additional threeclay minerals are added to serve as adsorbent and stabilizer components to form a mixture, after the remediation agent and the contaminated soil are uniformly mixed, the initial water content is adjusted to a saturated soil water content, and the remediation agent is left to stand for 3 to 10 days, so that normal plant seeding can be performed. The remediation agent reduces the bioavailability and transferability of heavy metal elements in the cadmium contaminated soil, improves soil self-purification capacity, and improves the soil fertility status, thereby guaranteeing the high quality, high yield and safety of agricultural products, ensures that the soil remediation is short in reaction period, good in effect, long in duration and wide in application range, and cannot cause secondary pollution.