
f. High noise level areas should be identified and hearing protection worn
where necessary.
g. Where engine noise or other sounds prohibit verbal communication, a clear
set of signals which are clearly understood and known by each team member
should be used. This will also apply when ear defenders are worn.
h. It should be ensured that the winch operator has a clear view of men
operating equipment at all times.
1.5.6
DRILLING OPERATIONS
– CABLE PERCUSSION
a. A firm and level working surface should be established for the erection of the
rig using timber sleepers where necessary. Mast guys, if applicable, should
be correctly positioned and securely anchored, properly tensioned and
frequently checked.
b. The equipment should always be operated in a safe manner and in
accordance with the manufacturer's instructions.
c. Cable tools which are not in use should be laid down horizontally on timber
grillage and should not be left in an upright position resting against the
derrick.
d. The correct tool should always be used for the operation being undertaken.
e. Personnel should keep clear of suspended equipment and use a rope, strap
or bail hook to swing tools away from the borehole. They should never look
down the borehole beneath a suspended tool.
f. When the drive clamps are suspended or in use the operator should not
place his hand on the drive head. When casing is being driven the drive
clamps should not be suspended above the operator's head. Short lengths of
casing can be used for this operation.
g. Tools should not be held in suspension be means of only the hand or foot
control when personnel are changing or working on them.
h. The winch operation should be in accordance with the manufacturer's
instructions, and should not be overloaded when pulling casing. When
additional force is required proper jacking equipment with positive
connections between jack head and casing should be employed, or an
appropriate casing jar.
i. Casing tubes and tool joints should always be screwed well home in order to
avoid damage to the threads and to prevent parting.
j. When driving casing, personnel should not place their fingers in tommy bar
holes or over the lip of the casing.
k. All worn or splintered drive heads, drilling tools, sinker bars. Etc. should be
replaced. Crushed, bruised or damaged wirelines should be removed
immediately.
10
Содержание DUKE STAGE IV
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Страница 35: ...SECTION 3 OPERATING INSTRUCTIONS 29 ...
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Страница 47: ...FIGURE 3 14 12 Place the spreader bar between legs and pin Figure 3 15 FIGURE 3 15 41 ...
Страница 49: ...2 Unpin and remove the stay bars Figure 3 18 Figure 3 19 FIGURE 3 18 FIGURE 3 19 43 ...
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Страница 267: ...SECTION 6 HYDRAULIC CIRCUIT 261 ...
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Страница 291: ...APPENDIX A ENGINE PERKINS 403D 15 285 ...
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Страница 300: ...403D 15 IOPU Left side view 793 753 74 APPROX C OF G 179 APPROX C OF G 294 ...
Страница 301: ...403D 15 IOPU Front view 296 457 208 354 295 ...
Страница 303: ...403D 15 IOPU Rear view 255 6 234 5 250 241 7 274 24v OPTION 297 ...
Страница 304: ...403D 15 IOPU Plan view 403D 15 IOPU Underneath view 324 310 156 349 7 Ø 1 3 Ø 1 3 103 5 211 1 298 ...
Страница 312: ... OOXVWUDWLRQ J RFDWLRQ RI ZDUQLQJ ODEHO 7DQG 7DQG 7 6 8 6DIHW 6HFWLRQ 6DIHW 0HVVDJHV 306 ...
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