Pulse Generator Assembly Introduction. 1200 and 650 Systems. LWD 1

1. LWD 1

Pulse Generator Assembly
Introduction
1200 and 650 Systems
January 12, 2001
© 2001, Halliburton Energy Services, Inc.
1

2. 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.
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
2

3. This is a Pulse Generator Assembly

January 12,
2001
© 2001, Halliburton Energy Services, Inc.
3

4. 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.
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
4

5. 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)
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
5

6. 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
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
6

7. The Pulser

January 12,
2001
© 2001, Halliburton Energy Services, Inc.
7

8. The Pulser

– Generates electrical and hydraulic
power
– Extends poppet into orifice to create a
positive pressure pulse
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
8

9. The Pulse Generator Assembly

January 12,
2001
© 2001, Halliburton Energy Services, Inc.
9

10. 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
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
10

11. 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
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
11

12. Pulse Generator Assembly

• 1200 and 650 Systems
• Parts are fixed to the pulser on a
Stator Support Tube Assembly
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
12

13. 1200 and 650 Systems

• The Impeller Assembly
Top Vane Impeller
Mid Vane Impeller
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
13

14. 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°, 20° vane angles
– Two marine bearings
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
14

15. 1200 and 650 Systems

Mid Vane Impeller
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
15

16. 1200 and 650 Systems

Mid Vane Impeller
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
16

17. 1200 and 650 Systems

• The Upper Bearing Sleeve
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
17

18. 1200 and 650 Systems

• The Upper Bearing Sleeve
– Supports the impeller’s upper bearing
– Threaded onto the stator support tube
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
18

19. 1200 and 650 Systems

• The Flow Diverter
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
19

20. 1200 and 650 Systems

• The Flow Diverter
– Directs flow toward the impeller vanes
– Installed between the upper bearing
sleeve and the stator support tube
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
20

21. 1200 and 650 Systems

• The Stator Support Tube
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
21

22. 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)
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
22

23. 1200 and 650 Systems

• Stator Support Tube Assembly
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
23

24. 1200 and 650 Systems

• Stator Support Tube Assembly
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
24

25. 1200 and 650 Systems

Stator Support
Tube Assembly
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
25

26. 1200 and 650 Systems

Stator Support
Tube Assembly
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
26

27. 1200 and 650 Systems

• Stator Support Tube Screws
Button-head screws
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
Flat-head screw
27

28. 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
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
28

29. 1200 and 650 Systems

Flat-head screw
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
29

30. 1200 and 650 Systems

Flat-head screw
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
30

31. 1200 and 650 Systems

January 12,
2001
© 2001, Halliburton Energy Services, Inc.
31

32. 1200 and 650 Systems

January 12,
2001
© 2001, Halliburton Energy Services, Inc.
32

33. 1200 and 650 Systems

Button-head screws
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
33

34. 1200 and 650 Systems

Button-head screws
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
34

35. 1200 and 650 Systems

January 12,
2001
© 2001, Halliburton Energy Services, Inc.
35

36. 1200 and 650 Systems

January 12,
2001
© 2001, Halliburton Energy Services, Inc.
36

37. 1200 and 650 Systems

• The Shrouded Stator
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
37

38. 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
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
38

39. 1200 and 650 Systems

Shrouded Stator
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
39

40. 1200 and 650 Systems

Shrouded Stator
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
40

41. 1200 and 650 Systems

• The Hub
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
41

42. 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
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
42

43. 1200 and 650 Systems

Hub
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
43

44. 1200 and 650 Systems

Hub
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
44

45. 1200 and 650 Systems

• The Nose Cap
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
45

46. 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
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
46

47. 1200 and 650 Systems

Nose Cap
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
47

48. 1200 and 650 Systems

Nose Cap
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
48

49. 1200 and 650 Systems

• The Poppet
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
49

50. 1200 and 650 Systems

• The Poppet
– Threads onto poppet shaft
– Causes fluid flow restriction when
extended into the orifice
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
50

51. 1200 and 650 Systems

Poppet
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
51

52. 1200 and 650 Systems

Poppet
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
52

53. 1200 and 650 Systems

Flow Ring Key
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
53

54. 1200 and 650 Systems

• The Flow Ring Key
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
54

55. 1200 and 650 Systems

• The Flow Ring Key
– Prevents pulser from rotating
– Maintains highside alignment
– Installed into notch in pulser bulkhead
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
55

56. 1200 and 650 Systems

Flow Ring Key
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
56

57. 1200 and 650 Systems

Flow Ring Key
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
57

58. 1200 and 650 Systems

• The Flow Ring/Straightener
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
58

59. 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
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
59

60. 1200 and 650 Systems

Flow Ring/
Straightener
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
60

61. 1200 and 650 Systems

Flow Ring/
Straightener
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
61

62. 1200 and 650 Systems

• The Snap Ring
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
62

63. 1200 and 650 Systems

• The Snap Ring
– Holds flow ring straightener in place
during assembly
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
63

64. 1200 and 650 Systems

Snap Ring
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
64

65. 1200 and 650 Systems

Snap Ring
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
65

66. 1200 and 650 Systems

• The Spacer Sleeve
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
66

67. 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
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
67

68. 1200 and 650 Systems

Spacer Sleeve
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
68

69. 1200 and 650 Systems

Spacer Sleeve
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
69

70. 1200 and 650 Systems

• Pulse Generator Assembly
January 12,
2001
© 2001, Halliburton Energy Services, Inc.
70