REALISING FULL VALUE FROM OBS DATA THROUGH CONTINUOUS IMPROVEMENTS IN PROCESSING AT THE CULZEAN FIELD, UKCS

REALISING FULL VALUE FROM OBS DATA THROUGH CONTINUOUS IMPROVEMENTS IN PROCESSING AT THE CULZEAN FIELD, UKCS

Testing

Surveys

Image enhancement

Petroleum reservoir evaluation

The development of the Culzean field used a High-Density Ocean Bottom Cable (HDOBC) survey acquired in 2010/2011 as the base dataset for reservoir modelling, reserve estimation and development planning. The survey was acquired to overcome illumination issues around the overburden Merganser diapir and provided significant improvement in structural imaging of the field. However, detailed studies showed that the dataset, processed in 2012, was not optimal for all aspects of field development, and improvement was needed. Since 2012, a number test processing projects have been performed to assess the impact of processing developments at Culzean. Although not all were successful, these tests led to the commissioning of a full reprocessing of the data in 2018, using a processing flow designed to take advantage of those improvements which were observed to have a positive impact. The results of the subsequent processing highlight the progress of ocean bottom processing made over the past decade. Significant improvements are observed in multiple content and structural image when compared to the 2012 processing. (2021) by the European Association of Geoscientists & Engineers (EAGE)

3583-3587

5

82nd EAGE Conference and Exhibition 2021, October 18, 2021 - October 21, 2021

2021

Merry, A.

Mitra, A.

conferencePaper