Study Of Measurement And Control System On Fracturing Blender Truck

Fracturing is a conventional oil and gas fields as well as yield shale gas, shale oil, coal bed methane and other unconventional oil and gas resources exploitation core technology,middle and low permeability oil exploration and development projects important part of the construction process,due to the low permeability oil storage layer physical working conditions limit,drilling mud pollution and other reasons.After perforating the well naturally low productivity,mining poor efficiency,subject to fracturing to normal production. Various types of oil and gas resources in the country at an advanced stage,oil, gas supply gap expanded,oil and gas wells fracturing operations become increasingly frequent.Oilfield fracturing fracturing is the main equipment,special case of oil and gas field drilling equipment.general fracturing oilfield special vehicles with equipment that is sets of fracturing unit form,where Blender is one of the key equipment in oil field fracturing units,Its role in the fracturing procedure by a certain percentage and transport sand and sand,and these different proportions of sand,fracturing sand fluid low-pressure pump to the different viscosity fracturing pumping equipment.Fracturing sand fluid low-pressure pump to the different viscosity fracturing pumping equipment.Its performance is good or bad will affect the success or failure of the entire fracturing.According to the specific process of oil and gas field development,a brief introduction to the important role of fracturing in oil and gas field construction,Fracturing unit as fracturing equipment used, an important part of the Blender,Blender in fracturing operations will need to add proppant additive mixed according to a certain proportion of the pump to the fracturing equipment,Its performance is directly related to the success of fracturing,therefore expand research for the control method blender Control System.According to Blender monitoring and control requirements and the actual sand craft,It gives the overall design blender Control System.Interactive interface and control system of the present Blender Siemens company introduced TP177B touch screen,the controller uses the Siemens S7-300 type PLC launched,according to the actual measurement and control needs, determine each instrument selection,It shows the input and output points table,The overall hardware configuration is described in detail.In this paper, Blender and control system monitoring and control methods were focused on the analysis and explanation,pl algorithm is proposed to the core of the Blender dosing automatic control and mixing sand tank outlet pressure monitoring and control methods,Since the actual sand level during the operation must be accurate and fast control,therefore, the use of level control feedback loop with feedforward compensated dual closed-loop control.Monitoring and control in accordance with the above method to establish a scientific mathematical model,with the matleb simulation software Blender measurement and control system simulation experiments,Made of high-quality test data,get a good simulation results,the Blender to design and control system provides a scientific basis.From the theoretical and experimental aspects illustrate the feasibility of the method of measurement and control.On this basis, the proposed design of the Blender software and control systems,given the Blender software and control system design and implementation methods.Finally finished designing the entire blender control system,rrespectively, decency and control hardware and software has been tested, gives a detailed test steps.