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HOÀN THIỆN GIẾNG VÀ KÍCH THÍCH VỈA WELL COMPLETION & STIMULATION 8/2/2012 1Dr Trần Vũ Tùng Chapter 1 – Fundamental concepts of Well Completions 8/2/2012 2Dr Trần Vũ Tùng Objectives To make you all t[.]
HỒN THIỆN GIẾNG VÀ KÍCH THÍCH VỈA WELL COMPLETION & STIMULATION 8/2/2012 Dr Trần Vũ Tùng Chapter – Fundamental concepts of Well Completions 8/2/2012 Dr Trần Vũ Tùng Objectives To make you all the best completion engineers of the 21st century During the Course – Fundamentals of completion– equipment and completion engineering principles – Basic drilling and completion fluids and applications – Well completion design – Wellsite duties & Computer skills At the end of the course – Understand fundamentals of completion– equipment, completion engineering principles, and applied completion engineering/operations – Be able to prepare simple completion programs 8/2/2012 Dr Trần Vũ Tùng Introduction Completions: – the interface between the reservoir and subsurface production Role of completion engineers: – to take well that has been drilled and convert it into a safe and efficient production or injection conduit Completion design requires: – Physics, chemistry, mathematics, engineering, geology, hydraulics, material science and practical hands-on wellsite experience 8/2/2012 Dr Trần Vũ Tùng Team integration 8/2/2012 Dr Trần Vũ Tùng Responsibilities • WELL OPERATIONS SUPERVISOR – – – – – – – – – – – – – – 8/2/2012 Ensuring all Company policies relating to drilling and completing operations and emergency situations are adhered to at all times for the safety of personnel, rig equipment, well stability and control Directing the Drilling Contractor and Service Company representatives in the operations to be performed and supervises the conduct of the operations Ensuring all operations, detailed in the Drilling and Completion Program, are performed efficiently and safely using the procedures detailed in the program and/or Completion Procedures Manual Responsibility for the Hot Permit System when ‘hot work’ is being conducted in the drilling module Requisitioning the equipment and materials required to complete the operations He will requisition the materials when appropriate and liaise with the Completion and Workover Superintendent to ensure arrival at the rig-site in ample time to allow inspection and preparation prior to use Ensuring all tools are suitable for purpose, inspected and dressed prior to running in the well Introducing changes to the Drilling and Completion Program but only in an emergency or when operating conditions not allow for communication with the Drilling and completion Workover Department Liaising with the OIM, Company Production Supervisor, and other operational Heads on a daily basis to discuss operational considerations and the possible impact on the other operations Supervising and directs well control operations in accordance with the Company’s Well Control Manual Liaising with the OIM to give advice on what actions to take, if any of the Platform Operating Modes are associated with the drilling operation, or arise from operations in the drilling module On completion of the program, i.e Xmas tree is secured with all operations completed, officially handing over the well to the Production Department (Production Supervisor) Both parties must sign the relevant well handover document Co-ordinating all completion activities including wireline and/or coil tubing/nitrogen, acid stimulation, perforating as well as all preliminary pressure testing of equipment Ensuring the safe and correct installation of all tubulars and completion sub-assembly components, i.e in the correct order and proper depth as per thecompletion programme Dr Trần Vũ Tùng 23 Responsibilities • PRODUCTION SUPERVISOR – Representing Company’s interests on the platform with respect to production, and when dealing with service companies involved with operations during the production phase – Ensuring that, during heavy lift operations such as handling Xmas trees etc., neighboring wells are closed-in to minimize risk to wellheads, flowlines, production equipment, the platform and personnel – Informing the Well Operations Supervisor, OIM and other Discipline Heads on the status of the production operations and the possible impact on other operations in general – Prior to a workover being carried out, handing the well over to Drilling/Completion (Well Operations Supervisor) stating the exact condition of the well Both parties must sign the handover document 8/2/2012 Dr Trần Vũ Tùng 24