41results about How to "In line with the actual production situation" patented technology

The invention discloses a horizontal gauge-aligning measuring device for measuring a tenon groove center distance. The horizontal gauge-aligning measuring device includes a frame, a pair of finial devices (3) with superposed axes installed on the frame, a clamping device (7) controlling the finial devices (3) to loose or clamp a gauge-aligning piece and a part (4) to be measured, an adapter (6) capable of being installed in a standard tenon groove of the gauge-aligning piece, and a positioning device (2) capable of being installed on a long axis of the gauge-aligning piece. A radial face of the adapter (6) is in contact with that of the positioning device (2) and the two radial faces keep parallel. The horizontal gauge-aligning measuring device for measuring the tenon groove center distance effectively solves the inaccurate problem easily existing in a tenon groove measuring process.

The invention provides a non-orthogonal nonlinear three-dimensional scanning probe calibration method under a cylindrical coordinate measuring machine, which includes: using a standard sphere as a calibration reference, constructing multiple scanning trajectories, establishing an optimization problem with spherical constraints as the objective function, and For the coefficient of the third-order item is too small, the coefficient estimation is adjusted to obtain a spherical constraint objective function suitable for optimization, and the Levenberg-Marquardt algorithm is used to realize the optimization. The third-order nonlinear optimization model of non-orthogonal 3D scanning probe is established by multivariate Taylor function expansion theory, which is the extension of orthogonal 3D scanning probe, and the model has wide applicability. The optimization is carried out twice, the first optimization of low-order coefficients, based on which the third-order coefficients are estimated, the order of magnitude of the coefficients is adjusted to the same order of magnitude in the second optimization, and the objective function is fine-tuned synchronously, directly optimizing all third-order coefficients, avoiding the When the third-order optimization is performed directly, the third-order coefficient cannot be optimized due to the large difference in magnitude.

The invention discloses a method for measuring the trapping and killing effect of Spodoptera litura adults, which comprises the following steps: (1) Design of test plots: prepare several closed test plots without Spodoptera litura occurrence, divide the test plots into trapping and killing treatment zones and Blank control area; (2) Host plant planting: Spodoptera litura host plants were uniformly planted in each test plot, and the size and growth of the Spodoptera litura host plants were consistent; (3) Trapping treatment; (4) Pupa insertion; (5) Data recording; (6) Calculation of trapping effects. The present invention eliminates the uncertain factors of outdoor evaluation, and designs a larger closed community, which can not only meet the physiological life, mating and oviposition activities of Spodoptera litura, but also reflect the actual production situation, except that Spodoptera litura cannot fly outwards. The other conditions outside of flying in and out are basically consistent with the natural state, which ensures that the test data is close to the natural state, which not only reduces the area of ​​the field test, but also shortens the period of the field test.

A method for estimating gas well production provided by the present invention includes: establishing a gas field "one-point method" productivity equation; calculating the average daily production of sample points in the gas field within the predetermined production history period, and the sample point is within the predetermined production history period The pressure drop rate of the sample point is within the first predetermined range; according to the daily production and bottom hole flow pressure of the sample point during the gas test, the absolute open flow of the sample point is calculated; the average daily production of the sample point and the absolute open flow of the sample point are calculated Regression analysis calculation, to obtain the first relationship between the average daily production of gas wells in the gas field and the absolute unobstructed flow rate during official production; according to the daily production and bottom hole flow pressure of the wells to be officially produced, calculate the absolute unobstructed flow of the wells to be officially produced Flow: According to the absolute unimpeded flow rate of the wells to be officially produced, the first average daily production of the wells to be officially produced when they are officially produced is calculated. The invention realizes that the daily production of the gas well can be estimated according to the actual production situation after fracturing of the tight sandstone gas reservoir.

Process industrial equipment serves as an analysis and diagnosis object, and an energy utilization state of the process industrial equipment is described through production parameters, energy efficiency parameters and operating parameters of the equipment. The method comprises the following steps of: in the process of operating the equipment, acquiring production process data of the equipment anddetermining the optimal energy utilization state; establishing an energy utilization state diagnosis tree according to expert knowledge, and comparing a real-time energy efficiency parameter with theoptimal energy efficiency parameter; triggering diagnosis if a real-time energy utilization state of the equipment is lower than the optimal energy utilization state, reasoning according to the energy utilization state diagnosis tree, and giving reasons and recommended measures after the reasoning is finished. By the method, the energy utilization state of the equipment using fuel, power, heat and other energy in various process industries can be monitored and diagnosed, and the method has universality.

The invention discloses a device and method for studying the migration law of temporary plugging agent in horizontal well or vertical well temporary plugging fracturing, the device for studying the migration law of temporary plugging agent in horizontal well or vertical well temporary plugging fracturing It includes a stirring module, a horizontal wellbore module, a vertical wellbore module, a directional perforation cluster module and a simulated fracture module. The stirring module is used to stir working fluid or temporary plugging agent; the horizontal wellbore module is connected to the stirring module to simulate a horizontal wellbore; The vertical wellbore module is connected with the horizontal wellbore module for simulating the vertical wellbore; the directional perforation cluster module is installed on the horizontal wellbore module for simulating the underground perforation of the horizontal well; the simulated fracture module is respectively connected with the directional perforation The cluster module is connected with the vertical wellbore module for simulating subterranean fractures.

The invention provides a method for identifying the type of drilling fluid and a method for identifying the type of drilling and completion waste. The identification method of the drilling fluid type includes: measuring the liquid phase fraction and bitumen content of the drilling fluid to be identified, wherein the drilling fluid to be identified belongs to polymer drilling fluid or sulfonated drilling fluid; obtaining the drilling fluid filtrate of the drilling fluid to be identified, and Determine the sulfo group content of the drilling fluid filtrate; determine the sulfo group content of the drilling fluid to be identified according to the liquid phase fraction of the drilling fluid to be identified and the sulfo group content of the drilling fluid filtrate; according to the sulfo group content and asphalt content of the drilling fluid to be identified, Determine the type of drilling fluid to be identified. According to the identification method provided by the present invention, the type of drilling fluid and the type of drilling and completion waste can be accurately determined, so that the drilling and completion waste can be treated in a targeted manner. Moreover, the entire identification process can be completed through indoor experiments, with little human influence, high reliability and good repeatability.