THE TUNING-FORK SENSOR OF A BOREHOLE CURVATURE ZENITH ANGLE
UDC: 681.5:622.24
DOI: 10.33285/0132-2222-2021-7(576)-6-9
Authors:
ESAULENKO VLADIMIR NIKOLAEVICH 1
1 Astrakhan State Technical University, Astrakhan, Russian Federation
Keywords: zenith angle, borehole curvature, tuning fork, quality factor, frequency response, bandwidth, natural frequency, drive and vibration pickup system, SOI Technology
Annotation:
The paper notes the necessity of controlling the wellbore spatial position directly during drilling and transmitting information via the wireless electrical communication channel of the well bottom with the well head. The existing means of measuring a borehole curvature zenith angle are considered, their disadvantages are shown. The scheme of the frequency sensor of the zenith angle is given. The design and principle of operation of the sensor are described. The results of the sensor experimental study are presented. The main functional dependence of the tuning fork Q-factor on the zenith angle value of the borehole curvature is revealed. It is shown that the proposed sensor has increased measurement accuracy. Recommendations for eliminating additional error are given.
Bibliography:
1. Есауленко Н.В., Есауленко В.Н. Частотные датчики в бурении: моногр. - Астрахань: Изд-во АГТУ, 2012. - 156 с.
2. Малюга А.Г. Инклинометры для исследования глубоких и сверхглубоких скважин. - Тверь: Фактор, 2002. - 520 с.
3. Мордкович В.Н. Структуры "кремний на изоляторе" - перспективный материал микроэлектроники // Изв. вузов. Материалы электронной техники. - 1998. - № 2. - С. 4-7.
Back to issue