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STANDARD HANDBOOK OF PETROLEUM & NATURAL GAS ...

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~~~<br />

894 Drilling and Well Completions<br />

Table 4-117<br />

Drlllstring Component Pressure Losses<br />

at Various Circulation Flowrates for Example 4<br />

Pressure (psi)<br />

Surface Equipment<br />

Drill Pipe Bore<br />

Drill Collar Bore<br />

PDM<br />

Drill Bit<br />

Drill Collar Annulus<br />

Drill Pipe Annulus<br />

Total Pressure Loss<br />

5<br />

142<br />

18<br />

580<br />

500<br />

11<br />

32<br />

-<br />

1288<br />

11<br />

318<br />

40<br />

580<br />

500<br />

25<br />

72<br />

-<br />

1546<br />

19<br />

566<br />

71<br />

580<br />

500<br />

45<br />

128<br />

-<br />

1909<br />

30<br />

884<br />

111<br />

580<br />

500<br />

70<br />

200<br />

2375<br />

c2 cn<br />

P<br />

U<br />

u)<br />

3000<br />

u, 2000<br />

0<br />

J<br />

L<br />

7<br />

cn<br />

cn<br />

L<br />

-<br />

a 1000<br />

(D<br />

U<br />

0<br />

+<br />

0<br />

-<br />

I<br />

-------------------<br />

I<br />

-<br />

- ,./<br />

-<br />

-<br />

I<br />

I<br />

I<br />

I<br />

I<br />

I<br />

I<br />

I<br />

I I II I I 1<br />

4 (QPm)<br />

Flgure 4-207. 5%-in. liner, total pressure loss vs. flowrate, Example 4.<br />

(Courtesy Smith International, Inc.)

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