STUDY AND DESIGN OF ARTICULATE DEFLECTING CONTROL BHA

Han Liexiang; Chen Duanbing

doi:10.3969/j.issn.1000-7393.2003.06.008

Han Liexiang, Chen Duanbing. STUDY AND DESIGN OF ARTICULATE DEFLECTING CONTROL BHA[J]. Oil Drilling & Production Technology, 2003, 25(6): 25-28. DOI: 10.3969/j.issn.1000-7393.2003.06.008

Citation:

Han Liexiang, Chen Duanbing. STUDY AND DESIGN OF ARTICULATE DEFLECTING CONTROL BHA[J]. Oil Drilling & Production Technology, 2003, 25(6): 25-28. DOI: 10.3969/j.issn.1000-7393.2003.06.008

Citation:

Han Liexiang, Chen Duanbing. STUDY AND DESIGN OF ARTICULATE DEFLECTING CONTROL BHA[J]. Oil Drilling & Production Technology, 2003, 25(6): 25-28. DOI: 10.3969/j.issn.1000-7393.2003.06.008

STUDY AND DESIGN OF ARTICULATE DEFLECTING CONTROL BHA

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Many methods have been tried to solve the deflecting problem in highly steep structure,however with few successful under high WOB condition.The deflecting control mechanism of a novel articulate BHA under high WOB is determined,and its dynamic three bending moment equation,formula calculating the bit side force and bit deflection angle were also derivated;based on which,calculating and analyzing software was programmed.Two optimized BHAs were selected and tested in two wells in the highly steep structure of Chuandong area,with some useful knowledge obtained.

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STUDY AND DESIGN OF ARTICULATE DEFLECTING CONTROL BHA

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