Sub-assembly preparation and make up

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…

Completion Operations - Gravel Packing

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…

Packers retrievability

Packers retrievability

The following provides information based on past experience of the retrievability of packers, which provides general trends and guidelines for the execution of such activities. However, every well is…

Completion Operations Reporting Requirement

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…

Completion Operations - Packer (introduction)

Completion Operations - Packer (introduction)

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…

Completion Operations - Wellsite Inspection and Testing

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…

Responsibilities during Completion 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…

Preparation for running tubing

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.…

Procedures for Completion Assembly Preparation

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…

Causes of Packer seal failure

Causes of Packer seal failure

The article identifies the most common factors which can play a role in premature failures of packer seals:

1. Installation procedures

  • Storage damage: ageing (heat, sunlight or radiation); distortion…

Completion Operations - Gravel Packing Procedures

Perforation prepacking refers to the methods that can be used to pack the perforation tunnels with gravel prior to filling the screen/casing annulus. The main objective of prepacking is to maximise…