(008)Pulse Gen Assy Intro rev B sst

© 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
This is a 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 Pulse Generator Assembly

© 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

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
The Impeller Assembly
Mid Vane Impeller
Top Vane Impeller

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
The Mid Vane Impeller Assembly
Rotates due to mud flow
Magnetically coupled to pulser’s main shaft
Vane angle related to flow rate
1200 System - 43°, 35°, 28° vane angles
650 System - 35°, 30°, 20° vane angles
Two marine bearings

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
Mid Vane Impeller

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
Mid Vane Impeller

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
The Upper Bearing Sleeve

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
The Upper Bearing Sleeve
Supports the impeller’s upper bearing
Threaded onto the stator support tube

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
The Flow Diverter

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
The Flow Diverter
Directs flow toward the impeller vanes
Installed between the upper bearing sleeve and the stator support tube

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
The Stator Support Tube

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
The Stator Support Tube
Screwed onto the pulser poppet shaft housing (3 screws)
Supports following components
Shrouded Stator (slide on)
Hub (slide on)
Nose Cap (threaded on)

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
Stator Support Tube Assembly

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
Stator Support Tube Assembly

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
Stator Support
Tube Assembly

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
Stator Support
Tube Assembly

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
Stator Support Tube Screws
Flat-head screw
Button-head screws
Button-head screws

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
Stator Support Tube Screws
Holds stator support tube in-place
Install flat-head screw first
Locates stator support tube in correct position
Aligns the remaining two screw holes
Install two button-head screws

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
Flat-head screw

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
Flat-head screw

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
Button-head screws

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
Button-head screws
Button-head screws

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
The Shrouded Stator

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
The Shrouded Stator
Slides over key on stator support tube
Angled vanes deflect fluid flow
Different vane exit angles dependent on flow rate
Shroud centralizes assembly in flowtube
Shroud limits erosion in flowtube

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
Shrouded Stator

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
Shrouded Stator

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
The Hub

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
The Hub
Slides over key on stator support tube
Provides a location to place a back-up wrench when tightening some parts
Acts as spacer between shrouded stator and nose cap

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
Hub

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
Hub

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
The Nose Cap

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
The Nose Cap
Threads onto stator support tube
Locks shrouded stator and hub onto stator support tube
Acts as transition from poppet outer diameter to hub outer diameter

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
Nose Cap

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January 12, 2001
1200 and 650 Systems
Nose Cap

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
The Poppet

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January 12, 2001
1200 and 650 Systems
The Poppet
Threads onto poppet shaft
Causes fluid flow restriction when extended into the orifice

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
Poppet

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January 12, 2001
1200 and 650 Systems
Poppet

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January 12, 2001
1200 and 650 Systems
Flow Ring Key

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January 12, 2001
1200 and 650 Systems
The Flow Ring Key

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
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
1200 and 650 Systems
Flow Ring Key

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
Flow Ring Key

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
The Flow Ring/Straightener

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
The Flow Ring/Straightener
Slides over key on pulser
Vanes change rotational fluid flow from impeller to linear
Outer ring centralizes assembly in flowtube
Groove on outer ring locks onto key in wear sleeve retainer

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
Flow Ring/
Straightener

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
Flow Ring/
Straightener

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
The Snap Ring

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
The Snap Ring
Holds flow ring straightener in place during assembly

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
Snap Ring

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
Snap Ring

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
The Spacer Sleeve

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
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
1200 and 650 Systems
Spacer Sleeve

© 2001, Halliburton Energy Services, Inc.
January 12, 2001
1200 and 650 Systems
Spacer Sleeve