Research On The Technology And Digital Prototype Of Gas Well Pressure

By analyzing the development status of the belt operation technology and the pressure operation device at home and abroad,combined with the application of the pressure operation in the gas well,the key technology,the supporting tool and the pressing process of the gas well pressure operation are analyzed and studied.Construction Technology of Gas Well Pressure Operation.Under the premise of understanding the working principle and system composition of the press working device,combined with the advanced technology and field application of the pressure working device at home and abroad,a set of skid-type gas well belt suitable for low pressure and small diameter pipe was designed and developed Pressure operation device.According to the design requirements of the gas pressure belt operating device,the design scheme of the device is determined,the structural parameters of the card system and the anti-spray system are determined,and the lifting hydraulic cylinder is carried out.The parameter calculation.Combined with the performance requirements of the Changqing gas field,the main technical parameters of the device are determined by theoretical calculation,and the selection of the components of the gas well pressure working device and the design of the whole device are completed.The finite element software is used to analyze the BOP shell statistically.The deformation and cloud of the shell are obtained.The maximum deformation occurs in the connection between the top cover and the lower shell.The stress concentration occurs in the lower shell Of the groove.The Mooney-Rivlin model of rubber was used to simulate the process of sealing the tubing,and the deformation state and force of the rubber core in the process of sealing the tubing were obtained.The main factors that resulted in the sealing tubing were the diameter To the displacement,the strain mainly occurs in the rubber and skeleton of the junction,the contact pressure with the contact area increases eventually reach the sealing pressure level.Through the field test of 70 K skid-mounted pressure equipment,the performance of the equipment was verified and the pressure operation of the three wells was completed.The results of this paper have played a certain role in promoting the research of gas well pressure operation,and also provided some reference value for the design research of gas well pressure working device.