Controlled hydraulic Tightening

Ref : O&G_SHC_30
DURATION :
4 DAYS

Objectives

  • Knowing the characteristics of the Bolted Joints elements, the necessary materials for tightening different techniques and the mechanical characteristics of bulk steel products.
  • Preparing the hydraulic tightening site (choice, Control) – Realizing the operations of taking control of the tightening with the aid of hydraulic keys and tensioning Cylinders.

Public

The staff of mechanical experience in traditional tightening shall be brought to perform controlled hydraulic tightening with keys and tensioning cylinders.

Prerequisites

  • Having the professional experience in these fields
  • Knowing how to read a mechanical plan (Experience in general mechanics of the traditional tightening)

Teaching

  • Face to Face training (Presentations, questions/answers and exercises).
  • Practical Application about in theclient site.
    • Outcomes Assessment Methods
  • Continuous Control in the form of multiple choice questions at the end of the sessions.

  • Day 1:

    • Standardization of threaded Fasteners
    • Different standards and types of filets in the field of Oil and Gas Industry
    • Static and dynamic characteristics of Fasteners
    • The Prestressed bolt connections Concept
    • Local Behavior of bolt connections (Adjustment free)
    • Static and dynamic resistance in case of simple or unknown loading
    • Determination of minimal and maximal pre-loading to be installed
    • Standardization of tubes and piping equipment.

    Different types of clamps and Joints.

    • Bolting (Special type for oil/gas): Conduct of threaded rods, Elastic Limit Concept and Steel Grades.
    • Presentation of bolts with controlled tightening.

    (Oil/Gas series)

    • Joints: different families and utilization Fields
    • Choices for (Pressure - Temperature)
    • Plugs: Different types and utilization fields

    Tools: of the standard Key to Tightening (Manual - Dynamometric - Hydraulic)

    Day 2:

    • Design of threads/Sectors (metric and white-worth types)
    • Tightening techniques (Tightening keys Manual - Dynamometric - Hydraulic)
    • Torque Tightening: Torque Tightening Determination (Case Study following ABAQUE)
    • Other Tightening Techniques (Manual - Hydraulic)
    • Application: Studies of a concrete case (Opening Bolts in order The quincunx Method).
    • Reminder of basic things about safety (Personal protective Equipment) and respect of the content described in the work permit order.
    • Use of adequate Tools « Explosion proof » (if the hydrocarbon trace presence is in the hazardous zone or at risk)
    • Joints Removal: Basic Precaution procedures for dismantling:

    (In order and in chessboard order)

    • Inspect the status of the bolts or threaded rods (Before the replacement, If necessary)
    • Bolts and threaded rods adequate choice (The replaced), which must meet the same mechanical criteria recommended by the manufacturer.
    • Flange Assembly (Choice of the type of related circuit): Checks and precautions to be carried out before tightening process.
    • Clamping Flanges
    • Tightening different techniques (Manual - Dynamometric - Hydraulic)
    • Tightening Sequences
    • Acceptable Methods as per the dimensions and the conditions of the service (recommended by the Manufacturer).
    • Control of tightening limits to the crash of the joint.
    • Recommended techniques
    • Conduct of the Assembly in service
    • Pressure and temperature Influence
    • Pressurization

    Subsea Leak detention Methods

    Day 3

    • Application, continuation: study of a concrete case (CETIM-COBRA)
    • Loosening: controls, caused and remedies (choice of the tools necessary to work in hazardous zone)
    • Damages Analysis: The main ways of bolted connections default
    • The requirements related to Fasteners coverings (ROHS)

    Day 4

    • Case of an assembly with complex loading: Limits of analytical models
    • Application of the final elements on the bolted joints
    • Global Approach
    • Local Approach
    • Experimental Validation Procedure: measurement and counting means
    • Reliable methods application on the dimensions of the bolted
    • Practical rules of Situation Analysis concept (respect of the following order of intervention “Appropriate range”).
    • Risks Analysis during Assembly Operations.

    Prevention.

    • Joints disassembly and the security precautions application in the zones in service and under pressure “Hazardous” Concepts of cold and hot permits.
    • Measurement of the elongation of a threaded rod according to the torque exerted.

    (Table of Constraints)

    • Tightening of a joint by different methods and controls
    • Piping Installation

    Flanges Alignment Exercise

    Avoid the constraints in the pipeline in respect of the Isometric design (Tightening and trial Test)

    • Practical exercise of Drilling/tapping (with a no gas and Metric) Filterer gas
    • Diameter in Tapping View Calculation