# Drilling Mechanics ## Simulations that ensure operational feasibility and safety. With increasing complexity and cost of wells as targets are defined in more challenging conditions and depths, the need for engineering design becomes a necessity. The Drilling Mechanics module opens to perform multiple simulations on the drill string design: Torque & Drag, Hydraulics and Surge & Swab. The Drilling Mechanics module allows you to: 1. Define common input data 2. Perform torque & drag simulations 3. Perform hydraulics simulations 4. Perform surge & swab simulations 5. Plot & report In order to perform simulations you need to design a trajectory and define a well schematic with at least two strings. Also a Drill string, defined in the String/BHA module, is needed. Once your simulations are run, you can compare the results by plotting them against other simulated scenarios. {% hint style="info" %} Our liberated engines in the cloud allow you to run multiple parallel simulations simultaneously and check different scenarios. While you wait for your results, the Well Design app is still available for you to continue working on. {% endhint %} --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://oliasoft.gitbook.io/oliasoft-welldesigntm-public-docs/user-guides-1/drilling-mechanics.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.