Calculation processing equipment for determining logging depth

Abstract

The invention discloses calculation processing equipment for determining logging depth. The calculation processing equipment comprises a hanging load data acquisition processing device, a well depth calibration device, a well depth tracking device and a well depth calculation device, wherein the hanging load data acquisition processing device obtains a hanging load pressure signal and determines effective hanging load data from the hanging load pressure signal; the well depth calibration device obtains the lifting / lowering height of a large hook at each layer and the pulse count of each layerchange point during lifting / lowering of the large hook and determines the every layer calibration coefficient corresponding to the number of roller layers; the well depth tracking device receives a pulse signal, a direction signal and hanging load data of a code wheel and obtains the amount of change in the height of the large hook according to the relationship between the height of the large hookand the pulse count and the calibration coefficient corresponding to the number of roller layers during well depth calibration; and the well depth calculation device obtains the amount of change in the height of the large hook and calculates to obtain the actual well depth by being combined with the initial large hook height, initial well depth and initial drill bit position. According to the calculation processing equipment, the drilling depth data can be collected in real time in the drilling process, the change of a depth curve is tracked and calculated in real time so as to determine theactual well depth, and the drilling operation is guided accordingly.

Description

technical field [0001] The invention relates to the technical field of well logging, in particular to the technical field of measurement-while-drilling in the drilling industry, in particular to a calculation processing device for determining the logging depth in drilling engineering. Background technique [0002] In oil exploration and drilling industries such as oilfield drilling, well logging and mud logging, it is necessary to accurately understand the downhole position and up and down speed of downhole instruments. Accurate well depth and depth are important indicators for the economic development of oil and gas resources. Almost all downhole operations start from instruments Design and manufacture, petrophysical measurement, data acquisition and processing, and transmission to the ground all require real-time calculation, correction and monitoring of well depth. It is essential to use appropriate methods and sensor equipment to complete well depth calculation and proces...

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