Selection of Surveying Method for Trajectory Design at Well X

Technology regards to Oil and Gas industries has developed very fast on par with the research and development activity. Back to 1930s, directional drilling is not a very common method for drilling, but not for nowadays especially on the offshore field, many operators prefer to use the directional drilling technology in order to save cost without having to build another drilling platform which is very expensive. Therefore, it is important to have a very accurate tool in determining a very good precise value of inclination and azimuth of the wellbore during drilling operation. By obtaining the precise inclination and azimuth, the driller will then use that particular data to calculate the wellbore trajectory and determine the exact position and location of the wellbore. Based on the available methods of survey calculation, the author will use the most simple and common methods in analyzing the well trajectory of Well X. The Author will also calculate the absolute error for each of the method in order to determine which method is the most suitable to be apply for Well X. The results indicate the minimum of curvature method have the smallest error follow by the average tangential method accordingly