The article shows research analysis of engineering and technological solutions that aimed at improving the efficiency of drilling wells using optimization of dynamic of work downhole drill-ing motors. As the technical solutions that reduce vibration, considered two options of construc-tion of the power section. A first embodiment involves the production of a hollow rotor which can reduce its moment of inertia. The second solution is the production of modular rotor, which are changing the eccentricity (misalignment) of rotating parts of the engine. The research of fluctuations throughout the length of the power section of the working bodies and the spindle of the engine, taking into account changes in its energy characteristics has been con-ducted to ensure stable operation of the engine in a well, identifying optimal loading parameters. Indicators of shaft speed ensuring minimum vibration amplitude of the engine has been Iden-tified. Optimal speed range of the rotor to prevent buckling of the BHA and to sustain its operation is shown to be between 15-20 % of the frequency of the engine at idle. The maximum reduction in speed during the drilling process should not exceed 30 % by conducted research.
Some results of research of properties of foams which find widespread of application in field of oil, gas and geological prospecting drilling.
Efficiency and environmental safety of drilling process requires consider of geological conditions of field. The recommendations on the composition of reagents for different geological conditions are given in the article. The results of experimental work are given.
the effectiveness of the foam flush drilling connects of foam ability to reduce the friction force and drilling shaft oscillation. The main factors are foam viscosity and foam bubble’s diameter.
It is necessary to decrease the vibration of bits to increase the productivity of drilling. This hole damper decrease the vibration when we use the foam liquids.
Пена - одна из разновидностей промывочных агентов, особенно перспективна при бурении скважин в осложненных условиях. Практическое освоение этого аффективного технологического средства требует обоснованного расчетами выбора насосного и компрессорного оборудования, проектирования рациональных режимов циркуляции ...
Специфические свойства пей - низкая плотность, малое эрозионное действие на стенки скважины, повышенная по сравнении с водой выносная способность и т.п. ...
