(009)Pulse Gen Assy Intro rev C SSlimk

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Pulse Generator Assembly Objectives
At the completion of this presentation you should be able to:
1. Describe the functions of the pulse generator assembly.
2. Name the parts required to build the pulse generator assembly.
3. Describe the main difference in the assembly of the 1200/650 systems versus the Slimhole/Superslim systems.

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim and Slimhole
Superslim Pulse Generator Assembly

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
What does a Pulse Generator Assembly do?
A mechanical assembly that uses the drilling fluid flow through the drillpipe to generate both electrical and hydraulic power and also to create pressure changes, or pulses, in that fluid.

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
What makes a Pulse Generator Assembly
The Pulser
The Flowgear (the parts that are installed on the pulser to build a turbine, valve, and to resist erosion)

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
What makes a Pulse Generator Assembly
The Pulser
The central component of all four systems
The same pulser can be used on all four systems

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
The Pulser

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
The Pulser
Generates electrical and hydraulic power
Extends poppet into orifice to create a positive pressure pulse

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
The Flowgear
Most of the flowgear comes in four sizes, related to the flow rate, and is used on one of the four systems.
1200 System
650 System
Slimhole System
Superslim System
Some of the flowgear is common to two or more systems

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Pulse Generator Assembly
The four systems can be divided into two groups that have similar assembly procedures
1200 and 650 Systems
Slimhole and Superslim Systems

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Pulse Generator Assembly
1200 and 650 Systems
Parts are fixed to the pulser on a Stator Support Tube Assembly
Superslim and Slimhole Systems
Parts are fixed to the pulser with a stator locator pin and split ring

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim System

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January 12, 2001
Superslim and Slimhole
The Impeller Assembly
Slimhole
Mid Vane Impeller
Superslim Impeller

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January 12, 2001
Superslim and Slimhole
The Impeller Assembly
Rotates due to mud flow
Magnetically coupled to pulser’s main shaft.
Vane angle related to flow rate
Slimhole System - 35°, 30° vane angles
Superslim System 45° vane angle
Two marine bearings

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim System
Impeller

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January 12, 2001
Superslim System
Impeller

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January 12, 2001
Superslim System
The Upper Bearing Sleeve

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim System
The Upper Bearing Sleeve
Supports the impeller’s upper bearing
Threaded onto the shrouded stator

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim and Slimhole
The Shrouded Stator

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim and Slimhole
The Shrouded Stator
Pinned to the pulser poppet shaft housing
Angled vanes deflect fluid flow
Different vane exit angles dependent on flow rate
Shroud centralizes assembly in flowtube or flow sub
Shroud limits erosion in flowtube or flow sub

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim and Slimhole
The Shrouded Stator Assembly

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim and Slimhole
The Shrouded Stator Assembly

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Slimhole System
The Upper Bearing Sleeve

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Slimhole System
The Upper Bearing Sleeve
Supports the impeller’s upper bearing
Threaded onto the shrouded stator

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Slimhole System
The Flow Diverter

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January 12, 2001
Slimhole System
The Flow Diverter
Directs flow toward the impeller vanes
Installed between the upper bearing sleeve and the shrouded stator

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim System
Shrouded Stator
Assembly

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim System
Shrouded Stator
Assembly

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim and Slimhole
The Stator Locator Pin

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim and Slimhole
The Stator Locator Pin
Fits in pin hole on the pulser poppet shaft housing
Prevents the shrouded stator from rotating on the pulser
Captured between shrouded stator and shroud/nose cap (nose cap-Slimhole)

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim System
Stator Locator Pin

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim System
Stator Locator Pin

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim and Slimhole

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim and Slimhole

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim and Slimhole
The Split Retainer Ring

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim and Slimhole
The Split Retainer Ring
Fits in ring groove on the pulser poppet shaft housing
Fastens shrouded stator and shroud/nose cap (nose cap-Slimhole) on pulser to prevent vertical movement

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim System
Split Retainer Ring

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January 12, 2001
Superslim System
Split Retainer Ring

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim and Slimhole

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim and Slimhole

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim and Slimhole

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim System
The Shroud/Nose Cap

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim System
The Shroud/Nose Cap (Superslim)
Threads onto shrouded stator
Captures split retainer ring and stator locator pin
Acts as transition from poppet outer diameter to outer diameter over pulser
Centralizes assembly in flow sub
Acts as support for Superslim orifice retainer

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Slimhole System
The Slimhole Nose Cap

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Slimhole System
The Slimhole Nose Cap
Threads onto shrouded stator
Traps stator locator pin and split ring to lock shrouded stator assembly onto pulser
Acts as transition from poppet outer diameter shrouded stator body outer diameter

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim System
Shroud/Nose Cap
Assembly

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim System
Shroud/Nose Cap
Assembly

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January 12, 2001
Superslim and Slimhole
The N6 Poppet

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January 12, 2001
Superslim and Slimhole
Use the N6 poppet with a dovetail orifice
N6 Poppet
LW15 Poppet

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January 12, 2001
Superslim and Slimhole
The Poppet
Threads onto poppet shaft
Cause fluid flow restriction when extended into the orifice

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January 12, 2001
Superslim System
Poppet

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January 12, 2001
Superslim System
Poppet

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January 12, 2001
Superslim System

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January 12, 2001
Superslim and Slimhole
The Flow Ring Key

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim and Slimhole
The Flow Ring Key
Prevents pulser from rotating
Maintains highside alignment
Installed into notch in pulser bulkhead

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim System
Flow Ring Key

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January 12, 2001
Superslim System
Flow Ring Key

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January 12, 2001
Superslim System
Superslim Flow Ring/Straightener

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim System
The Flow Ring/Straightener
Slides over key on pulser
Vanes change rotational fluid flow from impeller to linear
Centralizes assembly in flow sub
Keys to Superslim Collar for toolface alignment

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Slimhole System
Slimhole Flow Ring/Straightener

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Slimhole System
The Flow Ring/Straightener
Slides over key on pulser
Vanes change rotational fluid flow from impeller to linear
Outer ring centralizes assembly in flowtube
Key on outer ring locks into groove in Slimhole flow tube

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim System
Flow Ring/Straightener

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim System
Flow Ring/Straightener

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Slimhole System
The Snap Ring

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January 12, 2001
Slimhole System
The Snap Ring
Holds flow ring straightener in place during assembly

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim and Slimhole
The Spacer Sleeve

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim and Slimhole
The Spacer Sleeve
Provides transition from large outer diameter on pulser to 1.75 inch outer diameter of pressure case below pulser

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim System
Spacer Sleeve

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
Superslim System
Spacer Sleeve