Based On The Ground Of The Miniaturization Of The Formation Tester Equipment

A ground tester that built based on the miniaturized formation testing device is developed,this tester is the accessory products of the miniaturized formation testing device. Its technical property and index are designed with referring to the function testing requirement of the miniaturized formation testing device. This tester is a simulating Logging System and can be used as the electronic unit of miniaturized formation testing device, hydraulic power and single-detector function test device for testing repeatability, stability and reliability, as well as troubleshooting, instrument assembly and testing.With referencing foreign technology and experience and considering the technical requirement of oil industry, meanwhile carrying out the overall program, tester’s system platform is developed from researching hardware circuit and software design for solving the actual problem when researching and developingthe miniaturized formation testing device.Communication modulation and demodulation processing circuit is developed and the program design of FPGA chip is completed on the basis of modulation and demodulation, so the three bus DTB Logging System communication is achieved. On the software side, the performance testing software for the miniaturized formation testing device is developed,including signal acquisition modules, the hydraulic control, data display and other functional modules. Finally, strain gauge, calibration and correction algorithm quartz pressure gauge and pump pressure sensor and through system debugging are researched and the system structure is optimized so that the technical support and testing methods are provided for the miniaturized formation testing device to improve the device performance. And in accordance with the requirements of the equipment stability and practical engineering use, the products can be finalized.Actual usage of the ground tester shows the good performance of the developed system and meeting all aspects of the technical indexes. The ground tester, that provides the good technical support for the miniaturized formation testing device, has a fine prospect.