TRANSIENT PROCESSES OF DYNAMIC TORSION OF ROTATING DRILL STRINGS IN DEEP BOREHOLES

Abstract

A wave model of torsional autovibrations of homogeneous drill string is elaborated in the form of a torsional pendulum. The computer simulation of non-stationary torsion motions of the drill string bits is performed for the cases of the drill string rotations with accelerations. They simulate the effects of the drill string accelerating.

Authors and Affiliations

Olga Glushakova

Keywords

Related Articles

PROBLEMS OF ESTIMATING BIOLOGICAL ASSETS AND AGRICULTURAL PRODUCTS

The main problems of estimation of biological assets in agrarian enterprises are highlighted. The critical assessment of the theory and practice of using the valuation of biological assets and agricultural products at fa...

USING OF THE MODIFIED STARCHES IS IN THE PRODUCTION OF NEW TYPES OF SAUCES

The possibility of using the modified starches is investigational as a stiffener at the production of culinary mixtures and of new types of sauces.

THEORETICAL AND METHODOLOGICAL ASPECTS FINANCIAL SECURITY OF NON-BANKING SECTOR UKRAINE

The author’s approach of determining the financial security of the insurance market of Ukraine is presented. The methodical approach to assessing the security of the non-banking sector of Ukraine is investigated.

ROLE OF AGRICULTURE IN THE ECONOMY UKRAINE

The question of the role of agriculture in the economy of Ukraine.

MATHEMATICAL MODELLING OF MAGNETIC FIELDS IN ACOUSTIC PATHS OF MAGNETOSTRICTION GONIOMETERS

In article modeling of magnetic fields of magnetostriction goniometers is considered. Mathematical modeling of resultant tension of magnetic field of magnetostriction goniometers and her components – created by a current...

Download PDF file
  • EP ID EP310255
  • DOI -
  • Views 78
  • Downloads 0

How To Cite

Olga Glushakova (2017). TRANSIENT PROCESSES OF DYNAMIC TORSION OF ROTATING DRILL STRINGS IN DEEP BOREHOLES. Международный научный журнал "Интернаука", 1(5), 71-74. https://europub.co.uk./articles/-A-310255