GB/T 45966.1-2025 Active National standards

GB/T 45966.1-2025 Petroleum and natural gas industries—Well integrity—Part 1:Life cycle governance

Publish Date: 2025-08-01 Implement Date: 2026-02-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 45966.1-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Oil drilling and extraction equipment and instruments

ICS Name: Exploration and drilling equipment

Publish Date: 2025-08-01

Implement Date: 2026-02-01

Pages: 60 pages

Scope

This document specifies the basic requirements and recommended practices for the integrity management of oil and gas wells throughout their entire life cycle in the oil and gas industry, including well integrity strategies and management systems, the basis for well integrity design, the well design phase, the well construction phase, the production phase, the well repair phase, and the well abandonment phase.
This document applies to the integrity management of high-risk wells in the oil and gas industry.
This document does not apply to well control management in the oil and gas industry, nor to the integrity management of barehole well walls.
Note 1: A high-risk well is one that meets two or more of the following conditions:
a) The pore fluid pressure in the reservoir is not less than 70 MPa;
b) The reservoir temperature is not less than 150 ℃;
c) The H2S content in the reservoir is not less than 30 g/m3;
d) The predicted gas production volume from test drilling or the actual gas production volume from production is greater than 20×104 m3/d;
e) The well is located in water depths exceeding 500 m.
Note 2: The integrity of a barehole well wall refers to the ability of a barehole well to maintain its shape and integrity after drilling and completion, also known as "borehole stability".