Research And Development Of The Storage-type Deep Well Of Electronic Pressure Gauge

It is necessary to measure stratum pressure in the process of developing oil field. The pressure datum is an important means of researching the speciality of oil stratum, mastering its status and checking the process of oil extraction. To acquire the stratum pressure, it is nesessary to use all kinds of precise pressure measure instrument.Now, there are usually two kinds of pressure meter used in the oil field, one is mechanical, the other electronic. The storage electronic pressure meter is widely used for its high precision, reliable perfermance and convenient operation. This paper will discuss SJDY-I electronic pressure meter which is one new kind of storage electronic pressure meter.Firstly, the paper discusses well logging technology and the development of the domestic and foreign pressure meters, then proposes the sytem scheme design of SJDY-I electronic pressure meter and briefly analyzes its operating principle .Secondly, the paper explains in detail the software and hardware design method, presents the design thought and flow charts of every function modules.Thirdly, the paper analyzes the PC program, introduces software which adopts the filter and nonlinear regression methods for improve the system precision.In the end, the paper summarizes the design and development methodlogy of the SJDY-I electronic pressure meter and points out the future work.