«Oilfield engineering»

Optimization of wellbore preparation when using downhole motor assemblies

UDC: 622.243.27:622.244.7
DOI: 10.33285/0207-2351-2022-12(648)-51-57

Authors:

¹ LUKOIL-Engineering Limited KogalymNIPIneft Branch Office in Tyumen, Tyumen, Russia
² Department of LUKOIL-Engineering Limited KogalymNIPIneft Branch Office in Tyumen Industrial University of Tyumen

Keywords: downhole screw motor, distortion intensity, wellbore preparation, angularity, wellbore preparation, wellbore drifting tripping operations, oscillator, impulse downhole screw motor, rotary-controlled system

Annotation:

The risks of complications during the instrument round-trip operations and wellbore drifting tripping operations depend on the angularity value of the downhole screw motor. The article discusses the operations for preparing the wellbore before running down and casing strings cementing, substantiates the optimal angularity value of the downhole screw motor in drilling assemblies and wellbore drifting tripping operations as well as presents modern solutions that ensure the effective use of assemblies with downhole motors. The possibility of reducing the construction time of sections for the production string and liner has been confirmed.

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