Operations

It is advised that onshore meetings will be held between equipment vendor, Company, wireline contractor and drilling contractor at least 6 weeks prior to the start of operations. Company Representatives The Company Representatives directly involved during completion operations are: –           Senior Drilling Supervisor/ Drilling Supervisor –           Well Site Drilling Engineer –           Platform Production Supervisor –           Responsibilities during Completion Operations

This procedure identifies the assembly and test method for all completion sub assemblies. All assembly and testing shall be performed by persons, who have, as a minimum, undergone indoctrination and been qualified as Functional Test Operator. Assistant(s) shall have undergone indoctrination of new assembly / disassembly personnel. Two persons shall always be present during testing. Procedures for Completion Assembly Preparation

All inspection and testing shall be performed by contractor’s personnel and witnessed by Company’s completion supervisor. The drilling programme shall contain all the necessary information, including contingency measures, to enable the operation to be carried out in the most effective way. If for any reason the programme can not be followed, and the contingency has Completion Operations – Wellsite Inspection and Testing

This article describes the reports required to be submitted by the contractor to the Company Completion Supervisor. Well Completion Equipment Report Contractor shall submit to the Company Completion Supervisor, detailed assembly drawings of all sub assemblies clearly identifying the make up lengths required for space out calculations prior to mobilisation. Contractor shall submit a detailed Completion Operations Reporting Requirement

Proper preparation of tubing before running serves two purposes. Firstly to ensure that the pipe body and threads are adequately protected from possible damage when being moved to the drill floor. Secondly, that handling of the tubing on the drill floor is kept to a minimum. 1 Identification and measurement Electronic tagging will eliminate the Preparation for running tubing

A packer is defined as a sub-surface tool used to provide a seal between the tubing and casing (or wall) of a well, thus preventing the vertical movement of fluids past this sealing point. Packers are sometimes referred to as production packers but this term is generally used with reference to a particular class. 1 Completion Operations – Packer (introduction)

Whatever type of packer is installed, the manufacturer’s instruction for setting and the completion programme on setting depth and running must be followed if satisfactory results are to be obtained. There are too many variations in packer design and setting to go into detail, but some points to remember when installing packers are: do not Completion operations – Setting packers

The objective of all sand exclusion techniques is to arrest the movement of formation sand into the well. Sand production can cause erosion of well equipment, well restrictions, and sand deposits in flowlines and other surface installations. In the case of gravel packing, the gravel should be placed directly against the formation so that formation Completion Operations – Gravel Packing

Subsurface safety valves (SSSVs) are installed in the wellbore of hydrocarbon producing wells to shut off the production flow to the surface in case of an emergency. The importance of the correct installation of these valves to ensure well production flow is shut in during an emergency can not be over emphasised. Improvements in valve Sub-surface safety valves (SSSV)

The length and composition of sub-assemblies is usually dictated by the space and handling equipment considerations. They will ideally be made up and tested (both functionally and hydraulically) in a suitable base workshop. On site make-up should only be performed if the correct make-up equipment is available to ensure correct make-up torque and no damage Sub-assembly preparation and make up