53results about How to "Good on-site use" patented technology

A low-fluorescence high temperature resistant drilling fluid is applied to exploratory well drilling in high-temperature formations of deep wells. The drilling fluid comprises, by weight, 1.0-2.5% of a drilling fluid loss agent PAMS601, 2-4% of sulfonated methypheuo formald-ehyde, 4-8% of sulfonated lignite resin, 0.6-1.0% of di-n-dodecylamine, 0.1-0.5% of fatty alcohol-polyoxyethylene ether, 0.8-1.5% of Na2SO3, 0.1-0.3% of sodium alkyl benzene sulfonate and 30-90% of water. The low-fluorescence high temperature-resistant drilling fluid has the advantages that the fluorescence grade of the drilling fluid system is lower than Grade 5, the temperature resistant ability is above 200 DEG C, and the fluid can restrain formation mud making, improves stability of well walls, controls reservoir clay swelling and improves reservoir protection effects, besides, the fluid has the advantages of being stable at the high temperature, low in fluorescence and particularly applicable to deep well drilling.

A processing method for adaptive milling of the outer surface of the opening case, determining the trajectory planning of the adaptive milling process for the outer surface of the opening case, determining the online measurement trajectory planning of the outer surface of the opening case, and generating a strip with a software post-processing method. Machining programs with adaptive milling compensation variables. Determine the machining path planning of adaptive milling tool. The tool path is changed from the longitudinal reciprocating mode to the longitudinal single mode, and from the original forward and reverse milling alternate milling to all the forward milling mode, which improves the cutting force of the tool during processing, and improves the processing efficiency and surface quality. The invention has the advantages of significant economic benefits, increased milling efficiency by more than 20%, qualified wall thickness, and improved surface quality by one grade. Under the premise of ensuring the processing quality of the parts, the milling processing time can be shortened, the processing efficiency can be improved, and the wall thickness and size requirements can be guaranteed. The processing quality of the parts is stable, and the processing efficiency is obviously improved, and it can be extended to the external milling of other opening casings.

The invention relates to a processing method for offset milling of the cone-shaped outer surface of the casing. The following steps are as follows: using UG software to prepare the milling operation of the cone-shaped outer surface of the casing; planning the milling sequence and cutting tools for the cone-shaped outer surface of the casing track; customize the special post-processing program of UG software; use the special post-processing program to create the G code program recognized by the machine tool; plan the milling sequence and tool trajectory of the outer surface of the cone of the casing as follows: the outer surface of the cone of the casing is divided into Several surface areas, each surface area is used as a separate driving body, and each surface area is represented by (U, V) parameters; the feed point is selected in the middle of a single surface area, and the angle θ between the feed direction and the cutting direction is greater than 90 °, less than 270. The invention improves the cutting angle of the tool, increases the cutting range of the side edge, and reduces the cutting of the bottom edge, thereby reducing the wear of the tool, improving the processing efficiency, and successfully solving the problem of numerical control milling on the cone-shaped outer surface of the casing.

The invention relates to a meteorological measuring instrument, in particular to a device capable of diagnosing a failure of a visibility sensor and a detection method. Mainly for the diagnosis of the visibility sensor, the equipment includes limit switches, stepping motors, chassis, support columns, columns, cross arms, holding plates, control boxes, detection devices, motor brackets, and fixed feet. The detection device is driven to rotate by the stepping motor, so that the detection device sequentially covers the laser detection area of ​​the measured visibility sensor, and the measured visibility sensor uploads the captured meteorological visibility status data to the host computer software. The host computer software compares the visibility difference of different detection devices with the standard deviation, and judges whether the measured visibility sensor is faulty or not through the judgment of the measured data and the difference. The equipment has the advantages of high degree of automation, convenient operation and maintenance.

The invention discloses a low-solid phase ultrahigh-temperature water-based drilling fluid which is prepared from the following components in parts by weight: 100 parts of solvent water, 3-4 parts ofbentonite, 1.8-2.2 parts of a coating inhibitor, 2.3-3.5 parts of a filtrate reducer, 2-2.5 parts of high-temperature resistant resin, 2-2.5 parts of a shale inhibitor, 1.5-2 parts of a stripping agent and 15-35 parts of ultrafine calcium carbonate. The preparation method is simple. The preparation method comprises the following steps: adding a certain amount of bentonite into the solvent water toprepare prehydrated bentonite slurry; then successively adding the coating inhibitor, the filtrate reducer, the high-temperature resistant resin, the shale inhibitor, the stripping agent and ultrafine calcium carbonate while performing high-speed electric stirring; and finally, carrying out hydration at room temperature for 24 hours to prepare the low-solid phase ultrahigh-temperature water-baseddrilling fluid. The low-solid phase ultrahigh-temperature water-based drilling fluid can resist a temperature high up to220 DEG C, the low-solid phase ultrahigh-temperature water-based drilling fluidis good in rheological property, rock carrying property and high in blocking inhibiting property, the problem of low density carrying stability is solved, the low-solid phase ultrahigh-temperature water-based drilling fluid is successfully applied in mounting and probing a 4X well, and a good field application effect is obtained.

Disclosed is a method for calculating deviation rectification of the center of an integral impeller. A determination and application process of the method comprises the following steps of determining and calculating the center line of a disc body portion; determining and calculating the center lines of blade portions by using UG (Unigraphics NX) modeling software; determining the center line of the integral impeller; guaranteeing that the allowance of a wheel disc portion and the allowance of the blade portions are uniform; calculating and determining the theoretical size of a portion to be machined; writing the theoretical size of the portion to be machined in a process file; establishing parts and workblank models; determining the smallest theoretical width of blades of workblanks and the distance between an air feeding and discharging edge and a leaf type stacking line; analyzing an allowance distribution condition and drawing a machining allowance graph; determining and calculating the center line of the disc body portion; determining and calculating the center lines of the blade portions; and determining the center line of the integral impeller. The method for calculating the deviation rectification of the center of the integral impeller has the advantages that because the blade portions are W-shaped integral impeller workblanks, qualified parts of the integral impeller can be machined sequentially under the condition that the allowance of the workblanks is met, and insufficient local allowance caused by over high wrong modulus of the wheel disc portion and the blade portions in a rough machining stage is avoided.