---
kind: "section"
citation: "30 C.F.R. § 250.874"
title: "30"
number: "250.874"
heading: "Subsea water injection systems."
url: "https://uscodex.org/cfr/30/250.874"
---

# §250.874. Subsea water injection systems.


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:

- (a) Adhere to the water injection requirements described in API Recommended Practice 14C (incorporated by reference as specified in [§ 250.198](/cfr/30/250.198.md)) for the water injection equipment located on the platform. In accordance with [§ 250.830](/cfr/30/250.830.md), 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.
- (b) Equip a water injection pipeline with a surface FSV and water injection shutdown valve (WISDV) on the surface facility.
- (c) **Install a PSHL sensor upstream (in-board) of the FSV and WISDV.**
- (d) 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.
- (e) Consider the effects of hydrogen sulfide (H2S) when designing your water flood system, as required by [§ 250.805](/cfr/30/250.805.md).
- (f) Follow the valve closure times and hydraulic bleed requirements according to your approved DWOP for the following:
  - (1) Electro-hydraulic control system with water injection,
  - (2) Electro-hydraulic control system with water injection with loss of communications, and
  - (3) **Direct-hydraulic control system with water injection.**
- (g) **Comply with the following injection valve testing requirements—**
  - (1) You must test your injection valves as provided in the following table:
  - (2) If a designated USV on a water injection well fails the applicable test under [§ 250.880(c)(4)(ii)](/cfr/30/250.880.md?p=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](/cfr/30/250.198.md)) certified subsea valve as your USV.
  - (3) 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.
- (h) If you experience a loss of communications during water injection operations, you must comply with the following:
  - (1) Notify the appropriate District Manager within 12 hours after detecting loss of communication; and
  - (2) Obtain approval from the appropriate District Manager to continue to inject during the loss of communication.

## Notes

### 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]