UNSPSC 71121904: Downhole fluid engineering services

Engineering services for drilling and completion fluids

UNSPSC 71121904 Downhole fluid engineering services is a Commodity code that names well plugging, abandonment, and site restoration work — not abstract fluid-engineering services. State and local governments buy these services under this code when they manage orphaned oil and gas wells, municipal water well rehabilitation, and water treatment facility improvements. The Michigan Department of Environment, Great Lakes, and Energy, water districts and county utilities departments, and state oil and gas boards solicit plugging, drilling, casing, cementing, wireline, mud engineering, and waste disposal across multiple states. Representative recent solicitations include the Michigan EGLE's four concurrent direct solicitations in July 2026 (DS 260000000032, 260000000033, 260000000034, and 260000000035) for orphan well plugging at 38 gas storage wellheads in Gratiot and Montcalm Counties, each with proposals due July 21, 2026; the Mississippi Oil and Gas Board's multiple invitation-for-bids (IFB RFx 3160007881, 3160007966, 3160007967) for orphan well plugging across Mississippi counties, with bids due between late March and late April 2026; and the Illinois Department of Natural Resources' small-business set-aside for a supplemental irrigation well installation at Union County State Fish and Wildlife Area (IFB 26-422DNR-LNDMG-B-52982), due July 9, 2026. The code also captures water well construction and rehabilitation: San Bernardino County's on-call well and pump maintenance RFQ (SPD126SPDAD6431) for 32 production wells across five years at up to $2.8 million; Hillsborough County's ITB for water well maintenance and repair across 67 irrigation wells at $688,073 over two years; and the City of Palm Bay's RFP for four new production wells at the North Regional Water Treatment Plant, due April 28, 2026.

Activity concentrates in Michigan (orphan gas storage wells), Mississippi (orphan oil and gas wells), Florida (municipal water well maintenance and potable water supply wells), California (groundwater and booster pump maintenance), and Texas (well operations). Recent solicitations span state environmental remediation initiatives federally funded through the Infrastructure Investment and Jobs Act, county utility system expansion and maintenance, and city water supply infrastructure; issuing bodies range from state environmental or natural resources departments, county utilities and public works departments, and municipal water departments to water management districts and special purpose authorities. The code shows steady activity across multiple jurisdictions with Davis-Bacon prevailing wage requirements common in state-led orphan well programs and standard water well construction licensing mandates in Florida and California.