DRILLING SURFACE & SUBSEA - WellSharp®

The IADC WellSharp® level course provides students with the tools for developing practical problem-solving tactics and strategies when confronted with a well control incident for surface and subsea; focuses on kick detection, shut-in procedures, calculations, standard well control methods, and completing killsheets.

3.5 Days

Mode Type Level Course Length
WellSharp IADC Drilling Supervisor Driller 3.5 Days

WellSharp® Drilling - Surface & Subsea

The IADC WellSharp® level course provides students with the tools for developing practical problem-solving tactics and strategies when confronted with a well control incident for surface and subsea; focuses on kick detection, shut-in procedures, calculations, standard well control methods, and completing killsheets.

Well Control Course Outline IADC

Interactive Study Tools

  • Provide students with over 600 pages of pre-course study
    materials at wildwell.com
  • Provide students with a study guide that covers up to 150 interactive
    well control questions and answers.
  • Provide students with a 50 question test to determine their well control knowledge gaps.

Preliminary Items

  • Safety: escape routes, muster points, etc.
  • Discussion of special needs
  • Introductions
  • Class paperwork

SURFACE: Serious Well Control Problem From the Wild Well Library

  • Students form teams
  • Team discussion of the potential well control problem
  • Simulator exercise demonstrating the well control challenge
  • Return to class to discuss the challenge

Well Control Course Objectives

  • Formations, pore pressure, fracture gradients
  • Killsheet, kick detection, flow checks, well shut-in, and gas behavior
  • Well control methods
  • Well control equipment (barriers, BOPs, manifolds, accumulator, etc.)
  • Completing the well and post-completion activity
  • Final well control simulation: from kick to kill, with a complication
  • Assessments: skills and written

Formations, Pore Pressure, Fracture Gradient

  • Formation structure
    - Porosity
    - Permeability
  • Fracture gradients, kick tolerance, pore pressures
    -Related formulas/math (hydrostatic pressure, the U tube, force, MAASP, etc.)
    - Equivalent mud weight
    - Kick tolerance
    - Pore pressure vs. fracture gradient (drilling margin/window)
  • Simulator exercise demonstrating a FIT; discussion of LOT (if needed, depending upon class knowledge level)
  • Discuss casing and cementing program
  • Discuss drilling fluids program

Barriers

  • Philosophy and operation of barrier systems
  • Number of barriers for safe operation
  • Testing barriers

Shallow Gas, Water Flows, and Top-hole Drilling

  • Definitions and causes of pressure in top-hole formations
  • Causes of underbalanced top-hole
  • Diverting practices
  • Top-hole drilling practices and causes of kicks

Abnormal Pressure Warning Signs

  • Abnormal pressure
  • Shaker evidence
  • Changes in mud properties
  • Changes in drilling data/parameters

Killsheet, Kick Detection, Flow Checks, Well Shut-in, and Gas Behavior

  • Related formulas/math (capacities/volumes, strokes, circulation times, etc.)
  • Causes of kicks
  • Kick signs
    - Overt kick signs
    - Pre-kick signs
  • Flow-check procedures
  • Shut-in procedures
    - Hard shut-in
    - Soft shut-in
    - Shut-in challenges
  • Paper killsheet with preliminary well data
    - Well data, volume calculations
    - Discuss the importance of a killsheet
  • Simulator exercises demonstrating hard and soft shut-in
    - Kick detection and shut-in
    - Students complete killsheet with simulator well data (or instructor-given data)
    - Discussion of killsheet calculations:
    - What do they mean? (if needed) Discussion of

IADC WellSharp rounding rules

  • Gas behavior
    - While drilling
    - In horizontal wells
    - While shut-in

Well Control Methods

  • Review of related formulas/math (capacities/volumes, strokes, circulation times, kill mud, MAASP, ICP, FCP, etc.)
  • Wait and Weight Method
    - Discussion of Wait and Weight
    - Techniques
    - Skills (pump startup, step-down chart, gauge use, lag time, etc.)
    - Simulator exercise
    - Driller’s Method
    - Discussion of Driller’s Method

    - Techniques
    - Skills (pump startup, capturing pressure after first circulation, lag time, etc.)
    - Simulator exercise
    - Volumetric and Lube and Bleed
    - Discussion of Volumetric Method
    - Formulas
    - Understanding the process and technique
    - Skills (use of electronic killsheet or paper graph, managing gas migration)
  • Simulator exercise
  • Discussion of Lube and Bleed

Stripping Pipe Under Pressure

  • Discussion of technique
  • Skills (annular pressure, speed of strip, managing wellbore pressures via volumetric method)
  • Simulator exercise

Bullhead Method – Discussion and simulator exercise if time allows
Discussion of study guide questions

Well Control Drills

  • Pit drills
  • Trip drills
  • Stripping drills
  • Choke drills
  • Early response and empowerment to act

Completing the well and post-completion activity: a short discussion

  • Completions
  • Differences between drilling and workover

Final simulator exercise (if time allows)

  • Abnormal lateral well and kick detection
  • Kill the well with Wait and Weight Method

Discussion

  • Ballooning wells vs. kicking wells
  • Fingerprinting

Discussion of Study Guide Questions
Skills Assessment


SUBSEA:
Learning Objectives

  • Subsea well control concepts
  • Pre-recorded data
  • Well control methods
  • Kick awareness
  • Barriers
  • Kick detection
  • Top-hole drilling and shallow gas
  • Shut-in procedures
  • Risk management

Subsea Well Control Concepts

  • Downhole pressures
  • Downhole temperatures

Pre-Recorded Data

  • Choke-line friction pressure (CLFP)
  • Subsea killsheet
  • Subsea simulation
    - Kick detection
    - Well shut-In
    - Killsheet data

Well Control Methods

  • Driller’s Method
  • Wait & Weight Method
  • Pump startup
  • Sweeping the stack
  • Risk of gas in riser

Kick Awareness

  • Ballooning
  • Riser margin
  • Swabbing and surging

Barriers

  • Subsea BOP stacks
  • Lower marine riser package (LMRP)
  • Risers
  • Valves
  • Connectors
  • Control systems

Kick Detection – Review Of Warning Signs
Top-hole Drilling And Shallow Gas
Shut-In Procedures


Risk Management

  • Emergency disconnect system (EDS)
  • Emergency backup system
  • ROV intervention
  • Riser gas

Computer-Based WellSharp® Exam