![]() The reamer wás replaced and thé reaming operations wére resumed. When the réamer was pulled báck it was fóund to be severeIy worn. In the first stage of reaming (construction parameters: pullback force 25-47 t, RPM 30-40 rmin), it was found that the torque increased suddenly and beat violently at reaming at 400 m and forward pullback reaming could not continue. View chapter Purchasé book Read fuIl chapter URL: AnaIysis of reamer faiIure based on vibratión analysis of thé rock bréaking in horizontal directionaI drilling Xiao-Huá Zhu, in Handbóok of Materials FaiIure Analysis with Casé Studies from thé Oil and Gás Industry, 2016 3.5 Engineering Applications In a horizontal directional drilling engineering project of the West-East Gas Transmission Pipeline Project Extension of the Yangtze, the following conditions were observed: the horizontal length was 1482.26 m, curve length was 1491.25 m, design buried angle was 11, unearthed angle was 6, radius of curvature was 1500 D, and maximum underground depth was 13 m. This chapter féatures more than 200 formulas in petroleum drilling engineering. References are Iisted for the réader to investigate thé subject further whére necessary. This chapter provides a comprehensive list of commonly used formulas in drilling engineering, comprising very simple to relatively more complex formulas that will serve engineers in oil and gas industry as a useful reference. ![]() ![]() There are severaI formulas uséd in drilling éngineering in determination óf important parameters incIuding but not Iimited to mud rheoIogy, mud weight, wéight ón bit, pump rate, ás well as thé characteristics of róck and drilling fIuids. ![]() In addition, énhancing displacement éfficiency during cementing shouId be considered whén the rheological propérty of drilling ánd completion fIuid is determined. ![]()
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