MARK & WEDELL | Oldenvej 5 | 3490 Kvistgaard | Denmark | Phone:

MARK & WEDELL

ANNULUS PRESSURE RELIEF SYSTEMPRESSURE RELIEF SYSTEM FOR GAS AND

Delivered in a practical box

MARK & WEDELL | Oldenvej 5 | 3490 Kvistgaard | Denmark | Phone: +45 49139822 | E-mail: m-w@m

PRESSURE RELIEF SYSTEMPRESSURE RELIEF SYSTEM FOR GAS AND

� Proven field experience since 1995

� No moving parts.

� Easy to install and apply.

Delivered in a practical box

w@m-w.dk | Web: www.m-w.dk

PRESSURE RELIEF SYSTEM PRESSURE RELIEF SYSTEM FOR GAS AND OIL

Proven field experience since 1995.

No moving parts.

Easy to install and apply.

MARK & WEDELL | Oldenvej 5 | 3490 Kvistgaard | Denmark | Phone: +45 49139822 | E-mail: m-w@m-w.dk | Web: www.m-w.dk

MARK & WEDELL

GENERAL DESCRIPTION

The Annulus Pressure Relief System is a versatile concept

designed and developed as a reliable casing annuli pressure

protection system e.g. high-pressure onshore and offshore well

stimulation.

The Annulus Pressure Relief System has been developed to

meet the high standards and criteria for oil and gas well

stimulation in the North Sea and onshore in Kazakhstan.

The Annulus Pressure Relief System is easy to install, simple to

use with very low maintenance requirements. All parts are

manufactured of stainless steel and manufactured in

accordance with the highest standard and quality, consistently

controlled and tested at each stage of the production.

TESTIMONY

Senior Lead Engineer Jakob Monberg, Maersk Oil:

Maersk Oil has over the years done thousands of stimulations

worldwide. We started with what the service companies

provided as relief mechanism i.e. the spring operated or

Nitrogen operated systems. However, we were not happy with

the performance. The provided systems were not reliable. They

went of either at too high or too low pressure. Therefore, we

contacted MARK & WEDELL to make the Annulus Pressure

Relief System based on burst discs. Throughout the years, we

have been very pleased with the system.

TECHNICAL DATA

Pipework connection: 2” or 3” Weco 1502, upon request.

Max. work pressure: 15.000psi (1034bar)±5% at 22˚C (295K)

Materials:

Annulus relief unit: Stainless steel AISI 304

Burst discs: Stainless steel AISI 316

Dimensions

Length: Approximately 700mm

Weight: 75kg

Test and certificate

Certificates complying with requirements: PED 97/23/EG, cat

4, module B and D and with EN4126-2:

> Burst test certificate in accordance with EN 10204 / 3.1

> Material certificate in accordance with EN 10204 / 3.1

DRAWING

Mark & Wedell has since 1974 supplied products,

specialized machinery and parts according to

customer specifications. This includes development,

manufacturing and testing of Current Leads,

Annullus for offshore, Water Quality Monitoring

and much more.