Showing posts with label WELL CONTROL. Show all posts
Showing posts with label WELL CONTROL. Show all posts
Tuesday, May 21, 2013
WELL CONTROL MANUAL - LOUISIANA STATE UNIVERSITY
Chapter 1
DRILLING AND COMPLETION FLUIDS
Preparation and
maintaining of drilling fluids is based on the functions that the fluids must
accomplish. Some general fluid properties, such as density and viscosity,
together with specific characteristics unique to drilling fluids, such as
filtration control and lubricity, have direct impact on the function of the mud.
For example, density dictates the hydrostatic pressure exerted over a
formation. Viscosity and density dictate the ability of fluid to carry cutting
out of the wellbore, etc. the purposes of the chapter are to present (1) the primary
functions of the drilling fluids, (2) the diagnostic test procedures used to determine
whether the drilling fluid has suitable properties for performing these
functions, and (3) the common additives used to obtain the desirable properties
under various well conditions. .....
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Friday, May 10, 2013
INTRODUCTION TO DEEPWATER WELL CONTROL (NEXT - NETWORK OF EXCELLENCE IN TRAINING)
At the end of the lecture, you should be able to:
Deepwater special considerations
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- Describe the key aspects of well control in deepwater operations
- Define Deepwater Well control?
- When can it occur?
- Why,how, can it occur?
- What are the hazards, risks, probability and consequence of well control incidents?
- What plans and processes will be used to manage and control well control incidents?
- Are all aspects “fit for purpose” ?
- Preparing to kill a well
- Well control with bit off bottom
- Well control with bit on bottom
- Volumetric stripping operations
- Kill with no pipe in hole
- Circulating gas from riser and BOP’s
- Bullheading operations
- Shearing pipe
- Shallow well control
- Lost circulation
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DEEPWATER EQUIPMENT SYSTEMS (NEXT NETWORK OF EXCELLENCE IN TRAINING)
At the end of the lecture,you will be able to:
Offshore Rig Equipment
– Wellheads, templates, manifolds
– Xmas trees BOPs
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- Appreciate the various type of equipment systems used in deepwater operations
Offshore Rig Equipment
- Work boats
- Tubular and riser handling equipment
- Compensation equipment
- Elevating equipment or Station keeping
- Mud system
- Subsea equipment
– Wellheads, templates, manifolds
– Xmas trees BOPs
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Thursday, May 9, 2013
INTRODUCTION TO DEEPWATER DRILLING TECHNOLOGY (NEXT NETWORK OF EXCELLENCE IN TRAINING)
Topics to be covered
- What is deepwater drilling?
- Deepwater provinces - regional differences
- Deepwater riser
- Deepwater rigs and operations
- High deepwater drilling costs and deepwater alternatives slim hole, dual mud gradient systems
- Evolving deepwater drilling technology – Deepwater field development concepts deep draft caisson vessel (DDCV-SPAR) vs. TLP (tension leg platforms)
- Challenges of deepwater technology
- Conclusions
Introduction
•What is “Deepwater?”
–This is an evolving notion
–Presently considered to be water depth deeper than 1500 ft, ultra-deepwater meaning > 5000 ft of water
•Where is deepwater drilling taking place?
–Present water depth drilling record: 9111 ft (Brazil 2000); 6592 ft 1998; 5700 1982)
–World water depth record for a producing well: 6080 ft (Roncador field, Brazil, 1999)
Unconsolidated Shallow Sediments
- 30” pipe is jetted in (with drill-ahead tool)
- 30” pipe is structural, not conductor. Usually 80 to 100 m long
- 20” pipe is conductor, not surface casing. It is run in open water (26” hole drilled riserless).
- On mobile offshore drilling units (MODU), BOPs and marine risers are run on top, but no use of BOPs in 17-1/2” hole (No shut-in).
- 13-3/8” casing acting as surface casing
- Very low fracture gradients
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Sunday, May 5, 2013
OVERVIEW - ROTARY STEERABLE SYSTEMS - SCHLUMBERGER
OVERVIEW - ROTARY STEERABLE SYSTEMS - SCHLUMBERGER
What is PowerDrive?
•3-D, fully steerable tool that makes changes to
inclination and azimuth with continuous drillstring
rotation
•No “sliding mode”
Overview - Video
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COORDINATE SYSTEMS AND DEFINITIONS (NEXT NETWORK OF EXCELLENCE IN TRAINING)
COORDINATE SYSTEMS AND DEFINITIONS (NEXT NETWORK OF EXCELLENCE IN TRAINING)
At the end of this lecture, YOU will be able to;
- Name the most common map projection model and state the main
error introduced by the model.
- Demonstrate the correct use of Latitude,
Longitude and depth datum to define positions on Earth’s surface and within the
crust.
- State the differences between the different
North’s and correct magnetic readings to True North.
- Describe what is meant by “ellipse of
uncertainty” and “travelling cylinder”.
- Convert positions between Absolute and relative coordinates.
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Password: BlogKentQMonday, April 29, 2013
PDM MECHANICAL COMPONENTS (NEXT NETWORK OF EXCELLENCE IN TRAINING)
PDM MECHANICAL COMPONENTS (NEXT NETWORK OF EXCELLENCE IN TRAINING)
Positive displacement motors
At the end of this lecture, YOU will be
able to:
1. Name the 4 major components of a PDM tool.
2. Explain the components of a PDM power section.
3. List the components of a PDM drive line system
4. Name the 2 types of PDM bearing sections
and state when each should be used
5. List the operational considerations for using PDM tools.
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Sunday, April 28, 2013
INTRODUCTION TO DIRECTIONAL DRILLING (NEXT NETWORK OF EXCELLENCE IN TRAINING)
INTRODUCTION TO DIRECTIONAL DRILLING (NEXT NETWORK OF EXCELLENCE IN TRAINING)
•Lecture Contents
–Lecture Objectives,
–Definition,
–Well Types,
–Terminology,
–Applications,
–Basic Survey Calculation Methods,
–Directional Drilling Tools.
•Lecture Objectives
At the end of this lecture YOU will be able to:
–Define directional drilling
techniques
–Identify well types,
–Describe the related terminologies,
–Understand the applications of
directional drilling,
–List surveying and calculation
methods,
–Describe Various BHAs and Downhole Tools.
Wellbore Survey
–Background
•Recently, technology have advanced in
such away that the former directional drilling tools were replaced with an
advanced ones such as:
–Steerable mud motors,
–MWD,
–Andergauge Stabilizers,
–LWD.
•These tools, in combination, could
provide a 3D well profiles without
changing BHA and have enabled the drilling of horizontal and multi lateral
wells.
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Saturday, April 27, 2013
DRILLING FLUIDS TECHNOLOGY (NEXT NETWORK OF EXCELLENCE IN TRAINING)
DRILLING FLUIDS TECHNOLOGY (NEXT NETWORK OF EXCELLENCE IN TRAINING)
•Course Contents:
–Course Objectives,
–Basic Functions,
–Water & oil base muds,
–Formation damage,
–Completion fluids,
–Solids control,
–Environmental concerns,
–Performance testing.
•Course
Objectives:
–At the end of this course,YOU will be able
to:
•List functions & properties of drilling and completion fluis,
•Understand the formation damage
•Describe different fluids systems,
•Understand the solid control equipments
•Identify the environmental impact with drilling fluids.
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Friday, April 26, 2013
DRILL BIT TECHNOLOGY (NEXT NETWORK OF EXCELLENCE IN TRAINING)
DRILL BIT TECHNOLOGY (NEXT NETWORK OF EXCELLENCE IN TRAINING)
•Lecture
Contents;,
–Lecture Objectives,
–Drill Bit Types,
–Bit Design,
–Bit Selection,
–Bit Evaluation,
–Bit Performance,
•Lecture
Objectives;
–By the end of this lecture YOU should be able to:
•Recognize different bit types,
•Describe various process of bit design with respect to roller
cone bits and PDC bits,
•Select bits for various formation types and drilling
conditions,
•Grade bits using the IADC Dull Grading System,
•Utilize the IADC code to describe and compare bits,
•Identify important operational aspects that effect bit
performance,
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