af05383bb1
Snapshot before the quality program (relevance gates, tiered mapping, QA linter). v1 is the immutable before/after reference; evidence crawl was at ~175/3039 occupations when tagged. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01PDKeXvpT6tENSvyQGLV1Uq
51 lines
2.4 KiB
Markdown
51 lines
2.4 KiB
Markdown
---
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name: derrickhand
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description: "Occupational skill for the role 'derrickhand' (also: derrick operator, member of the drilling crew, derrickwoman, derrickman). Use when the user asks for typical derrickhand work such as: Regulate air pressure, rotary speed, and downward pressure, according to the type of rock or concrete being drilled.; Verify depths and alignments of boring positions.; Start, stop, and control drilling speed of machines and insertion of casings into holes."
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---
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# Derrickhand
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Derrickhands guide the positions and movements of drill pipes. They control the automated pipe-handling equipment. They are often responsible for the condition of drilling fluids, or "mud".
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## Core workflow
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1. Regulate air pressure, rotary speed, and downward pressure, according to the type of rock or concrete being drilled.
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2. Verify depths and alignments of boring positions.
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3. Start, stop, and control drilling speed of machines and insertion of casings into holes.
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4. Select the appropriate drill for the job, using knowledge of rock or soil conditions.
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5. Operate controls to stabilize machines and to position and align drills.
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6. Select and attach drill bits and drill rods, adding more rods as hole depths increase, and changing drill bits as needed.
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7. Operate machines to flush earth cuttings or to blow dust from holes.
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8. Drive or guide truck-mounted equipment into position, level and stabilize rigs, and extend telescoping derricks.
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## How to use this skill
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- Read [references/profile.md](references/profile.md) for the occupation profile and scope.
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- Consult [references/tasks.md](references/tasks.md) for the full task and activity inventory.
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- Check [references/skills.md](references/skills.md) for essential vs. optional competences.
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- Check [references/tools.md](references/tools.md) for the software commonly used in this role.
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## Key competences (essential)
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- control flow of oils
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- follow safety procedures when working at heights
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- guide drill pipes
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- maintain circulation system
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- maintain mechanical equipment
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- mechanical tools
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- mechanics
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- monitor drilling fluid
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- react to events in time-critical environments
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- rigging terminology
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- use rigging equipment
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- work in drilling teams
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## Hot technologies
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- Microsoft Office software
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- Microsoft Excel
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- Microsoft Word
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---
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*Sources: ESCO v1.2.1 (http://data.europa.eu/esco/occupation/41d4be58-3111-48b5-814a-83117983dd16), O*NET 30.3 (47-5023.00). See manifest.json for licensing/attribution.*
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