Overview of Measurement Requirements

There are many reasons why measurement of oil and gas flowrates may be required of UKCS licensees. These typically fall into one of the following 2 categories:

• Measurement of petroleum won and saved
• Other purposes relevant to the license

1. MEASUREMENT OF PETROLEUM WON AND SAVED

This typically includes measurement systems used to allocate production, and hence revenues, from producing fields. Some of these revenues may be collected by the Government in the form of Petroleum Revenue Tax or Royalty.

Licensees are required to use a method consistent with ‘good oilfield practice’ for the measurement of all petroleum won and saved. To guide licensees as to what constitutes ‘good oilfield practice’ in this respect the DTI maintains a set of Measurement Guidelines.

Licensees and Operators should also be aware of Petroleum Operations Notice 6 which sets out requirements on UKCS licensees in order that their measurement systems may be approved by the DTI.

2. OTHER PURPOSES

This is wider in scope and may include measurement for the following purposes:

• To determine quantities of gas flared
• To establish viability of a reservoir as a production prospect, as for example with extended well tests
• To improve understanding of reservoir behaviour to enable effective reservoir management strategies to be implemented
• To account for gas or condensate re -injected into a reservoir for pressure maintenance or conservation

Back | Title | Table of Contents
Appendix 1 | Appendix 2 | Appendix 3 | Appendix 4 | Appendix 5 | Appendix 6 | Appendix 7 | Appendix 8 | Appendix 9
Appendix 10 | Appendix 11 | Appendix 12 | Appendix 13 | Appendix 14 | Appendix 15 | Appendix 16 | Appendix 17
Index Map | Plate 1 | Plate 2W | Plate 2E | Plate 3W | Plate 3E | Plate 4W | Plate 4E | Plate 5 | Plate 6
Plate 7 | Plate 8W | Plate 8E | Plate 9W | Plate 9E | Plate 10W | Plate 10E | Plate 11 | Plate 12 | Legend