Research on On-line Measurement Accuracy Improvement Technology of Drilling Fluid Rheological Parameters

Hai Yang; Hangyu Zhang

doi:10.54691/pavvj838

Authors

Hai Yang
Hangyu Zhang

DOI:

https://doi.org/10.54691/pavvj838

Keywords:

Drilling Fluid Rheology; Rotation Method Measurement; Tubular Differential Pressure Method.

Abstract

Drilling fluid plays an irreplaceable role in drilling operations, serving functions such as cuttings transportation, signal transmission, and wellbore stability maintenance. The measurement of drilling fluid rheological parameters is crucial for optimizing hydraulic rock breaking, precisely controlling bottom-hole pressure and wellbore stability, and ensuring wellbore cleanliness. Currently, manual measurement methods such as the Marsh funnel and six-speed rotational viscometer are commonly used on-site, but they suffer from long measurement cycles and significant human interference. The online drilling fluid rheology measurement device enables real-time, automated measurement of drilling fluid rheological properties, offering higher efficiency compared to manual methods. This study addresses errors arising from single measurement methods and proposes a combined approach for measuring drilling fluid rheological parameters, integrating both rotational and tube differential pressure methods, which complement each other. Additionally, techniques for improving the accuracy of rheological parameter measurements in an online drilling fluid measurement system are explored.

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