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POSITIVE DISPLACEMENT DRILLING MUD MOTORS...

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POSITIVE DISPLACEMENT DRILLING MUD MOTORS

© 1995 Baker Hughes Incorporated  All rights resered.

303-020. 1 2/00

Drilling Te-hnolog) O(er(ie. Build Rate  deg!"##$t% deg!&#m' ,

Long

Cur(ature

0

Medium

150

Short

Intermediate

!1"# !otors Tool T)*e

2 !1"I !otors

!1" !otors  Articulated !otors   $ollar )ri'ar Application

M,D T)*e

)roe (econdar Application  

4leile

)ri'ar Application

$o'posites

$onentional )re'iu' - #i'ited &otation

Pi*e Rotation

Sliding - %o &otation $onentional - %o &estrictions

Com*letion+

(pecial )ro*ect (peci+ic

&adius +t &adius ' © 1995 Baker Hughes Incorporated  All rights resered.

1000 300

10 3

0 25

0 12 303-020. 2 2/00

Drilling Te-hnolog) O(er(ie.

© 1995 Baker Hughes Incorporated  All rights resered.

303-020. 3 2/00

Three Point Geometr) 

Three Point+ De$ine a Cir-le



Bi+e-t the / Straight Line+



The Inter+e-tion A' De$ine+ the Center Radiu+' o$ the Cir-le



De$ine+ the Tilt Angle



© 1995 Baker Hughes Incorporated  All rights resered.

/

De$ine+ the ar303-020.  2/00

Drilling Tool+ 0 De$le-tion Method+

BUR2

© 1995 Baker Hughes Incorporated  All rights resered.

/ 1 "## L" 6 L /

Positive Displacement Motors

303-020. 5 2/00

3 "!/4 and larger A5O +et u*

© 1995 Baker Hughes Incorporated  All rights resered.

303-020. , 2/00

6 &!64 7 & &!64 .ith "!/ +hell+ A5O +et u*

© 1995 Baker Hughes Incorporated  All rights resered.

303-020.  2/00

Bit Bo1'

Stator 

" Stage

Dri(e Su>

© 1995 Baker Hughes Incorporated  All rights resered.

Uni(er+al ?oint A++em>l)

B)0Pa++ Val(e

a' Mono Lo>e >' Multi Lo>e

Rotor 

Positive Displacement Motors

303-020. 9 2/00

@luid @lo. Path Stator  Ela+tomer'

Rotor  Dire-tion O$ Rotation

@luid @lo.

Uni(er+al ?oint

© 1995 Baker Hughes Incorporated  All rights resered.

Positive Displacement Motors

303-020. 10 2/00

Lo>e Con$iguration+ "!/

:!3

© 1995 Baker Hughes Incorporated  All rights resered.

/!&

!8

Positive Displacement Motors

& !6

!"#

303-020. 11 2/00

Ela+tomer Per$orman-e Limitation+ 7e+inition

8#A(:!8&

;

ELAST I$

):#ater Based !ud (ste's (tandard e'p.==? 130@$2,5@4 (set' $

:il Based !ud (ste's

(ste' 7

:il/>ater Based !ud (ste's (tandard e'p.==?130@$ 2,5@4 I'proed >ear &esistance

(set' 4

:il/>ater Based !ud (ste's e'p.== ?1,0@$ 320@4 High $he'ical &esistance

 not in u+e an)more

© 1995 Baker Hughes Incorporated  All rights resered.

High e'p.== ?10@$ 3,0@4

 Cir-ulating Tem*erature

Positive Displacement Motors

303-020. 13 2/00

Engineering Drilling S)+tem+

Na(i0Drill Ultra Serie+ Motor+

© 1995 Baker Hughes Incorporated  All rights resered.

303-020. 1 2/00

Ultra Serie+ Motor+ 6 &!6 Tool SiFe

To* Su>

ine+  G Torue at >it *ro*ortional to motor di$$erential *re++ure ea+) -ontrol'  G Greater torue -a*a>ilitie+% u+e o$ more aggre++i(e >it+ *o++i>le  G it >etter -ooling% no +talling'  G le

© 1995 Baker Hughes Incorporated  All rights resered.

303-020. 21 2/00

le 5i-0O$$ A5O' 

C)lindri-al Thread re*la-ed >) Ta*ered Thread  G Im*ro(ed Bending Moment Ca*a-it)  G Redu-ed Potential o$ Thread Galling  G Almo+t all tooth $lan+ are in -onta-t  G +tronger >o1



Redu-ed Num>er o$ thread -onne-tion+

© 1995 Baker Hughes Incorporated  All rights resered.

303-020. 22 2/00

K0treme Bene$it+ 

In-rea+ed ROP



ilit)



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