ISO 10426-2-2003 PDF

Full title and description

ISO 10426-2:2003 — Petroleum and natural gas industries — Cements and materials for well cementing — Part 2: Testing of well cements. This International Standard specifies requirements and gives recommendations for the testing of cement slurries and related materials under simulated well conditions.

Abstract

Provides test methods and recommended procedures for laboratory evaluation of well cement slurries and related materials to simulate downhole (wellbore) conditions. The document is intended to support cement selection, qualification and performance assessment for petroleum and natural gas well applications.

General information

• Status: Published; edition confirmed (International Standard).
• Publication date: October 2003 (published edition 1, 2003).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 75.020 (Petroleum and natural gas industries); 91.100.10 (Cement).
• Edition / version: Edition 1 (2003). Corrigendum and amendment available (Amd 1:2005; Cor 1:2006).
• Number of pages: 171 pages (published document).

Scope

Specifies requirements and recommendations for laboratory testing of cement slurries and related materials under simulated well conditions (pressures, temperatures and other downhole parameters) to evaluate properties relevant to well placement and zonal isolation. The scope includes general test procedures used to assess slurry rheology, stability, setting and early strength development as applied to petroleum and natural gas well cementing.

Key topics and requirements

• Standardized laboratory procedures for testing cement slurries under simulated downhole conditions (HPHT conditioning).
• Rheology and gel-strength measurement methods to assess pumpability and suspension behavior.
• Thickening time (consistency development) testing to determine workable pumping window.
• Density and mixability checks to confirm target slurry properties.
• Free water (bleeding) and fluid-loss tests to assess slurry stability and filtrate control.
• Early-age compressive strength and non‑destructive sonic/ultrasonic monitoring for rate of strength development.
• Slurry stability and sedimentation/segregation testing to evaluate particle settling risk.
• Water‑wetting capability testing (added by Amendment 1, 2005).

Typical use and users

Used by petroleum operators, well-cementing contractors, laboratory technicians, cement and additive manufacturers, well-design engineers, research organizations and regulatory bodies involved in well construction and integrity. It supports slurry development, quality control, qualification of new materials and troubleshooting of cementing operations.

Related standards

Part of the ISO 10426 series addressing cements and materials for well cementing; related documents include ISO 10426-1 (specification for well cements) and ISO 10426-3 (testing of deepwater well cement formulations). The standard is often used alongside API RP 10B-series documents and national/adopted equivalents.

Keywords

well cementing, cement slurry testing, HPHT testing, thickening time, rheology, free water, fluid loss, compressive strength, slurry stability, water‑wetting capability, ISO 10426.

FAQ

Q: What is this standard?

A: ISO 10426-2:2003 is an ISO International Standard that specifies laboratory test methods and recommendations for testing cement slurries and related materials used in petroleum and natural gas well cementing.

Q: What does it cover?

A: It covers procedures to evaluate slurry properties under simulated well conditions (pressure, temperature) — including rheology, thickening time, free water, fluid-loss, strength development, stability and related tests; Amendment 1 (2005) adds water-wetting capability testing.

Q: Who typically uses it?

A: Petroleum operators, cement manufacturers, cementing contractors, laboratory personnel, well-design engineers and regulators use the standard for slurry development, qualification, quality control and research.

Q: Is it current or superseded?

A: ISO 10426-2:2003 is the published edition (2003). The edition has an amendment (Amd 1:2005) and a technical corrigendum (Cor 1:2006). ISO records indicate this edition was reviewed/confirmed in later ISO lifecycle checks (confirmed status noted by ISO). Users should check ISO or national standards bodies for any subsequent revisions or newer parts in the 10426 series before relying on it for regulatory compliance.

Q: Is it part of a series?

A: Yes — it is Part 2 of the ISO 10426 series (other parts include Part 1: specifications for cements and Part 3: testing of deepwater formulations, etc.), all under ISO/TC 67/SC 3.

Q: What are the key keywords?

A: Well cementing, cement slurry testing, HPHT consistometer, rheology, thickening time, free water, fluid loss, compressive strength, slurry stability, water-wetting.