§250.874. Subsea water injection systems.
30 C.F.R. § 250.874
If you choose to install a subsea water injection system, your system must comply with your approved DWOP, which must meet the following minimum requirements:
Adhere to the water injection requirements described in API Recommended Practice 14C (incorporated by reference as specified in § 250.198) for the water injection equipment located on the platform. In accordance with § 250.830, either a surface-controlled SSSV or a water injection valve (WIV) that is self-activated and not controlled by emergency shut-down (ESD) or sensor activation must be installed in a subsea water injection well.
Equip a water injection pipeline with a surface FSV and water injection shutdown valve (WISDV) on the surface facility.
Install a PSHL sensor upstream (in-board) of the FSV and WISDV.
Use subsea tree(s), wellhead(s), connector(s), and tree valves, and surface-controlled SSSV or WIV associated with a water injection system that are rated for the maximum anticipated injection pressure.
Consider the effects of hydrogen sulfide (H2S) when designing your water flood system, as required by § 250.805.
Follow the valve closure times and hydraulic bleed requirements according to your approved DWOP for the following:
Electro-hydraulic control system with water injection,
Electro-hydraulic control system with water injection with loss of communications, and
Direct-hydraulic control system with water injection.
Comply with the following injection valve testing requirements—
You must test your injection valves as provided in the following table:
If a designated USV on a water injection well fails the applicable test under § 250.880(c)(4)(ii), you must notify the appropriate District Manager and request approval to designate another API Specification 6A and API Standard 6AV1 (both incorporated by reference, see § 250.198) certified subsea valve as your USV.
If a USV on a water injection well fails the test and the surface-controlled SSSV or WIV cannot be tested as required under (g)(1)(ii) of this section because of low reservoir pressure, you must submit a request to the appropriate District Manager with an alternative plan that ensures subsea shutdown capabilities.
If you experience a loss of communications during water injection operations, you must comply with the following:
Notify the appropriate District Manager within 12 hours after detecting loss of communication; and
Obtain approval from the appropriate District Manager to continue to inject during the loss of communication.
Notes, amendments, and revision history
Amendments
[81 FR 61918, Sept. 7, 2016, as amended at 83 FR 49262, Sept. 28, 2018; 91 FR 35357, June 10, 2026]
Source
Source: 81 FR 61918, Sept. 7, 2016, unless otherwise noted.
Authority
Authority: 30 U.S.C. 1751, 31 U.S.C. 9701, 33 U.S.C. 1321(j)(1)(C), 43 U.S.C. 1334.
Source
Source: 76 FR 64462, Oct. 18, 2011, unless otherwise noted.
Amendments
[81 FR 61918, Sept. 7, 2016, as amended at 83 FR 49262, Sept. 28, 2018; 91 FR 35357, June 10, 2026]