Specific features of use of continuous gyroscopic inclinometer
The main type of the equipment used when conducting exploration by wells drilling method are continuous gyroscopic inclinometers that provide geophysical researches aimed at search for oil and gas reserves. Among the introduced equipment a special place is occupied by gyroscopic devices designed to measure deviations of the wells trajectory from the planned direction. The article considers the continuous gyroscopic inclinometers, special attention is paid to the device and the principle of the gyroscopic unit operation. On the example of IGN 73-100/80 inclinometer operation, the authors give the characteristic features of inclinometers use by "Tyumenpromgeofizika" production company when drilling directional exploration wells in Malobalyk oil field in the Western Siberia. The article identified and presents operational indicators that directly affect the quality and accuracy of the measurements made by inclinometers, such as the nature of the device's speed and movement along the wellbore, the difference in the ambient temperature at the well bottom and inside the device, the parameters measurements accuracy in the areas of the device's descent and assent. The use of centralizers as well as the maximum possible speed of the device's descent or assent that minimize the occurrence of skew and meet the current safety requirements when conducting wells' inclinometric researches are substantiated.