ISO 10427-2:2004 PDF

Name: ISO 10427-2:2004 — Petroleum and natural gas industries — Equipment for well cementing — Part 2: Centralizer placement and stop-collar testing
SKU: ISO 10427-2:2004
Price: 25 EUR
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Petroleum and natural gas industries — Equipment for well cementing — Part 2: Centralizer placement and stop-collar testing

Название (английский):

ISO 10427-2:2004

Petroleum and natural gas industries — Equipment for well cementing — Part 2: Centralizer placement and stop-collar testing

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 14
Дата публикации:: 27 апреля 2004 г.
Издание:: ISO IS 10427 edition 1 version 1
ICS:: 75.180.10

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Описание (английский):

ISO 10427-2:2004 provides calculations for determining centralizer spacing, based on centralizer performance and desired standoff, in deviated and dogleg holes in wells for the petroleum and natural gas industries. It also provides a procedure for testing stop collars and reporting test results.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 10427-2:2004 - "Petroleum and natural gas industries - Equipment for well cementing - Part 2: Centralizer placement and stop‑collar testing" provides standardized methods and calculations for centralizer placement and a test procedure for stop collars used in well cementing. Targeted at deviated and dogleg wells, the standard helps determine centralizer spacing needed to achieve a desired standoff and defines how to test and report stop‑collar performance.

Key topics and technical requirements

Centralizer spacing calculations: Formulas and procedures for estimating spacing based on centralizer performance, desired standoff ratio, well inclination and geometric factors. Includes 1‑D and 2‑D casing deflection models and lateral load considerations.

Standoff and annular clearance: Methods to compute annular clearance for perfectly centred casing and the standoff ratio (standoff as a percentage of annular clearance). Notes the common 67% standoff reference used for bow‑spring centralizer performance (not a universal minimum requirement).

Buoyed weight of casing: Guidance and a generalized equation to calculate effective (buoyed) casing weight accounting for internal and external fluid densities - important because buoyed weight affects lateral loads and resulting standoff.

Casing deflection and lateral loads: Equations to estimate maximum casing deflection (sag point) between centralizers and the lateral loads imposed by inclination, tension, and doglegs. Cautions on model assumptions (axial tension only, no compression, no end effects; soft‑string model).

Stop‑collar testing procedure: Apparatus, test procedures and reporting requirements for measuring holding and slippage forces of stop collars, plus documentation practices for test results.

Normative references: Links to related documents such as ISO 11960 (casing/tubing steel pipe specifications) and alignment with ISO 10427‑1 and ISO 10427‑3.

Practical applications

Designing centralizer layouts and cementing programs for horizontal, deviated and dogleg wells to improve casing centralization and cement placement.

Selecting centralizer types (bow‑spring, rigid, solid) and spacing to meet required standoff and minimize poor cement channels.

Verifying stop‑collar holding performance during QA/QC for casing accessories before running casing.

Evaluating effects of fluid density changes during cement jobs when calculating buoyed weight and expected centralizer performance.

Who should use this standard

Drilling and cementing engineers planning casing centralization and cement placement

Completion and well design engineers working on deviated/horizontal wells

Equipment manufacturers and test laboratories performing centralizer and stop‑collar testing

QA/QC, procurement and regulatory personnel specifying cementing equipment performance

Related standards

ISO 10427‑1: Casing bow‑spring centralizers (performance/test details)

ISO 10427‑3: Performance testing of cementing float equipment

ISO 11960: Steel pipes for casing/tubing

Keywords: ISO 10427-2, centralizer placement, stop-collar testing, well cementing, standoff ratio, centralizer spacing, buoyed weight, casing deflection, petroleum and natural gas.

ISO 10427-2:2004 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Practical applications

Who should use this standard

Related standards

Технические детали

SIST EN ISO 11960:2021

Petroleum and natural gas industries - Steel pipes for use as casing or tubing for wells (ISO 11960:2020)

BS EN ISO 10427-1:2024

Oil and gas industries including lower carbon energy. Equipment for well cementing. Casing bow-spring central…

SIST EN ISO 10427-3:2005

Petroleum and natural gas industries - Equipment for well cementing - Part 3: Performance testing of cementin…

SIST EN ISO 10427-2:2004

Petroleum and natural gas industries - Equipment for well cementing - Part 2: Centralizer placement and stop-…