Assessment of Soil and Bedrock Abrasivity for Horizontal Directional Drilling Projects - A Qualitative Approach


Assessment of Soil and Bedrock Abrasivity for Horizontal Directional Drilling Projects - A Qualitative Approach

Authors:

Nicholas Strater, Brierley Associates, North Hampton, NH USA
Danny Crumpton, Inrock
Brian Dorwart, Brierley Associates< br> Jim Williams, Brierley Associates

Abstract: A common risk to Horizontal Directional Drilling projects is tool and equipment wear associated with abrasive soil and bedrock conditions. Abrasive conditions can significantly reduce drilling and reaming production rates, and increase project costs associated with tool and equipment rehabilitation and replacement. This paper presents common bit and reamer wear patterns that may be attributed to abrasive conditions, and provides a summary of indicators and testing that may be used to asses both soil and bedrock abasivity during project planning and design. An abrasivity scale is provided to help quantify relative abrasivity that may be used to anticipate tool and equipment wear, and assist with tool selection.

Publication Date: 2019

Presented at:
NASTT’s 2019 No-Dig Show Chicago, Illinois
March 17-21, 2019 | Paper Number: TM2-T2-02


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