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Discussion History

Drill String

Assembly

Assembled column of kelly, drill pipe, heavy-wall collars, and bit that rotates and applies weight to bore through formation. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Drill String parts and their functions

4 top-level parts · 70 parts in total · full bill of materials below
Drill String parts diagram: 1 kelly, 2 drill pipe, 3 heavy-wall collars, 4 drill bit. 70 parts in 4 assemblies.
Drill String parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Kelly 1× Square or hexagonal kelly for table drive
2 Drill Pipe 60× Threaded 3.5–4.5 inch OD joints
3 Heavy-Wall Collars 8× Heavy-wall tungsten-carbide collars
4 Drill Bit 1× Roller cone or PDC bit for formation type

3D model

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Build & assembly graph

expand / collapse · shared sub-assemblies converge · links to related products · est. labour
product / assembly shared across products atomic part related product

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Bill of materials for Drill String

4 top-level lines · 4 rows shown · 70 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Kelly rotary-water-well-rig-kelly 1× 1 · part
2 Drill Pipe rotary-water-well-rig-drill-pipe 60× 60 · part
3 Heavy-Wall Collars rotary-water-well-rig-collars 8× 8 · part
4 Drill Bit rotary-water-well-rig-drill-bit 1× 1 · part

Where the drill string is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Rotary Water Well Rig

Sourcing: possible vendors

Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $0.50–$100. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳Foxconn
foxconn.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Flex (Singapore)
flex.com ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks
🇮🇳Dixon Technologies
dixoninfo.com ↗ 		Noida, IN Electronics contract mfg 1,000 pcs 6–10 wks
🇨🇳BYD Electronics
bydelectronic.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Venture Corp
venture.com.sg ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks