Classification of methods applied to reduce friction forces when constructing directional wells with a horizontal ending
UDC: 622.24.063.2
DOI: 10.33285/0130-3872-2022-1(349)-17-21
Authors:
LYUBIMOVA SVETLANA V.
1,
KHUZINA LILIYA B.1,
SHAIKHUTDINOVA ALIYA F.1,
SAITBATALOV RAMIL R.1
1 Almetyevsk State Oil Institute, Almetyevsk, Russia
Keywords: reduction of friction forces, horizontal well, classification, improvement of methods, selection of method
Annotation:
The article discusses the classification of methods which are applied to reduce friction forces of a drill string against well walls during drilling of directional wells as well as wells with horizontal ending, updated by the authors. The previously developed classification was presented in the published articles [1]. The present article, taking into account modern achievements in the field of well construction, provides up-to-date information on the methods which are applied to reduce drill string friction against the well wall. Chemical, mechanical and combined methods are discussed. The presented classification provides scientific substantiation and selection of a method to reduce the frictional force of the drill string against the borehole well wall.
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