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STANDARD HANDBOOK OF PETROLEUM & NATURAL GAS ...

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540 Drilling and Well Completions<br />

Second Preference<br />

-0<br />

-<br />

+I<br />

+I<br />

I<br />

-%Deadman<br />

7 Tons<br />

Capacity<br />

t<br />

'1<br />

T<br />

Grade 1:20 max<br />

............<br />

Load Bearing Area: Compacted sand or gravel requiring picking for removal or better<br />

base. Safe bearing capacity desired-Min., 8000 psf, level and drained. Rig Location<br />

Area: May grade away from well along centerline II at ma. drop of 1:20. Should be<br />

level across grades parallel to centerline 1. Safe bearing capacity desired-min., 6000<br />

psf. Allow maneuvering entry for drive in or back in. Drainage of entire area required.<br />

See Table 4-3.<br />

Figure 4-6. Portable mast location preparation 131.

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