Well Trajectory Calculation & Directional Profile Design

The target of this article is to show the directional well trajectory calculations methods required for all well profile design planning including build, hold & drop sections and to show the utilization of trajectory and directional survey calculation methods by designing the well path of two wells. Please note that this article is one of our Directional Drilling Guide Articles. The focus will be on is on the below items: 1- Calculate directional coordinates. 2- Calculate (TD) the total depth , (KBTVD) the true vertical depth, vertical departure, at (EOB) interval, in a build and hold well profile. 3- Calculate directional coordinates. 4- Give formulas which is utilized in calculating the directional well trajectory for several methods: Tangential; balanced tangential; average angle; radius of curvature; and minimum curvature. Article Main Contents: 1 Types of Directional well Profiles For The Trajectory Calculation 1.1 1) Build and Hold Directional Well Planning Profile Design 1.2 2) Build, Hold and Drop Directional Well Planning Profile – S profile Wells Design 1.3 3) Continuous Build Directional Well Planning Profile – J profile Wells Design 1.4 4) Horizontal Directional Well Planning Profile Design 2 Planning The Well Profile 2.1 First, What Is The Parameters Which Define The Directional Well Profile | Trajectory Design 2.1.1 Kickoff Point 2.1.1.1 Definitions: 2.1.1.2 Simple Hints: