wellhead
Let an agent explain wellheads, relay components, types, standards and safety from petroleum engineering and regulatory sources at a general level, and distinguish wellheads from Christmas trees, blowout preventers, pumpjacks and water well pump houses.
Bundle → Layer → Finding → Questions Filled
4 bundles · 8 layers · 8 findings · 16 questions
Understand What a wellhead is.
Definition
Definition.
Definition
Definition.
- Is there a gas leak, fire or blowout at a well site, in which case evacuate and call emergency services? boundary
- What is a wellhead, and how does it differ from Christmas trees, blowout preventers, pumpjacks and pump houses? definition
Types
Types.
Types
Types.
- How do land, subsea, geothermal and water well heads differ? definition
- Which entry fits the specific type? action
Engineering Components.
Components
Components.
Components
Components.
- What do casing heads, tubing heads and hangers do? provenance
- Which references are standard? provenance
Standards
Standards.
Standards
Standards.
- What do API 6A and ISO 10423 specify? provenance
- Which sources are cited? provenance
Safety Well control.
Well control
Well control.
Well control
Well control.
- How do wellheads and BOPs work together in well control? provenance
- Which entry fits well control? action
Incidents
Incidents.
Incidents
Incidents.
- What did investigations find about the Deepwater Horizon blowout? provenance
- Which entry fits Deepwater Horizon oil spill? action
Context Environment.
Abandoned wells
Abandoned wells.
Abandoned wells
Abandoned wells.
- What do studies report about methane leakage from abandoned wells, with findings attributed? provenance
- Is the presentation neutral and attributed? boundary
Geothermal
Geothermal wells.
Geothermal
Geothermal.
- How do geothermal wellheads handle steam and brine? provenance
- Which entry fits geothermal power? action
Classifiers Filled
- Family
- Thing Registry
- Category
- Physical world and living systems
- Entry kind
- thing
- Plane
- PHY
- Domain
- PHY.BLT
What it is Filled
The surface termination of an oil, gas, geothermal or water well, consisting of casing heads, tubing heads, valves and spools that support the casing and tubing strings, seal the well and provide connections for a Christmas tree of valves that controls production, or for a blowout preventer during drilling; subsea wellheads sit on the seabed, and failures of well control equipment have caused disasters such as the Deepwater Horizon blowout of 2010. Wellheads are designed to pressure ratings under standards such as API Specification 6A and ISO 10423, and in water supply the term also names the protected top of a water well.
Why it exists Filled
Let an agent explain wellheads, relay components, types, standards and safety from petroleum engineering and regulatory sources at a general level, and distinguish wellheads from Christmas trees, blowout preventers, pumpjacks and water well pump houses.
Distinguishing features Filled
- Pressure containment
- Casing support
- Interface for trees and BOPs
- Land and subsea types
What robots and AI may and may not do Filled
Must not
- Open, close or bypass wellhead valves or safety systems without authorization.
- Override or silence well-control alarms.
- Hide signs of leaks, corrosion or pressure build-up.
- Approach or tamper with an abandoned well without competent supervision.
Only with a human decision
- Any well intervention or shut-in decision.
- Declaring an abandoned well safe.
May
- Explain the parts and function of a wellhead and how it differs from a Christmas tree and blowout preventer.
- Monitor wellhead pressures and alarms on wells the agent is authorized to watch, and report anomalies.
Moral aspects Filled
- Wellhead failures have killed workers and caused major spills, so safety must outrank output.
- Leaking abandoned wells harm water, air and climate long after production ends.
Who is affected
- Well workers
- Nearby communities
- Ecosystems and fisheries
Owners Filled
Steward
The well operator; petroleum or energy regulators license wells and hold well records.
Master systems
- National well and licence registers
Links to other meta-models Filled
parent
- Q811979 - registry parent class
related
- built structure - in registry terms
- Christmas tree (oil well)
- blowout preventer
- oil well
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.wellhead
- Wikidata: Q7981274 (https://www.wikidata.org/wiki/Q7981274)
Direct properties required Filled
- API Specification 6A: wellhead and tree equipment note - also ISO 10423
- pressure ratings: up to 20,000 psi or more note - high-pressure wells
- Deepwater Horizon blowout: 2010 year
Recognition required Filled
- Surface termination of a well
- Wellhead, casing head, tubing head, subsea wellhead
- Christmas trees sit on wellheads to control flow; blowout preventers are drilling safety devices; pumpjacks lift oil; pump houses shelter water pumps
- Heavy steel spools, flanges and valves at the top of a well casing, on land or on the seabed.
Capabilities and actions required Filled
- explain components and types
- relay standards
- describe safety and incidents
- distinguish related equipment
Hazards and failure modes required Filled
- Blowouts and leaks
- Corrosion and erosion
- Abandoned well leakage
Standards and interfaces required Filled
- API Specification 6A and ISO 10423
- Offshore safety regulations such as BSEE rules
- Water well construction codes
Context of use required Filled
- Sealing and controlling wells at the surface.
- conventional land wellheads
- subsea wellheads
- compact and unitised wellheads
- geothermal wellheads
- water well heads
Sources Filled
- Wikidata item Q7981274: wellhead - identity and sense of the item
- Wikipedia: Wellhead - general description of the item
Open questions
- Should subsea wellheads be a separate entry?
- How should petroleum engineering standards be linked?
- Should water well heads be disambiguated?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q7981274/spec.json