A drain in my graben: an integrated study of the Heimdal area petroleum system

Polygonal faults and their implications for hydrocarbon reservoirs in the southern Qiongdongnan Basin, South China Sea

“…Polygonal faults as fluid pathways have been documented by many authors (e.g. Davies and Cartwright, 2007;Shoulders et al, 2007;Gay et al, 2006a,b;Hustoft et al, 2007;Larter et al, 2000;Cartwright and Dewhurst, 1998). In the study area, the polygonal faults are usually related with troughs below and incised valleys above (Fig.…”

“…Recently, many researchers have realized the importance of polygonal faults in migration, accumulation and escape of hydrocarbon and gas hydrates (Bünz et al, 2003;Trincardi et al, 2004;Gay et al, 2006a,b;Davies and Cartwright, 2007;Paola et al, 2007). In addition, they have been observed as pathways for both sandstone and salt intrusions (Larter et al, 2000;Victor and Moretti, 2006;Panien et al, 2001;Stuevold et al, 2003). The polygonal fault system was first recognized in the deepwater zone in South China Sea with high quality 3D seismic data using seismic attributes.…”

Geochemical characterisation and genetic origin of oils and condensates in the South Viking Graben, Norway

“…No samples from the oil rim of the Frigg gas field or the condensate of the Heimdal Field were available for analysis. Recent studies by Larter et al (2000) and di Primio (2002) suggest that family G hydrocarbons occur in the Tertiary reservoirs of Frigg and Heimdal. The results of the present study support the conclusions of di Primio (2002) who suggested a genetic relationship between the Vale, Lille Frøy, Skirne and 25/6-1 based on analysis of PVT data.…”

“…Lille Frigg seems to have a separate drainage area from the rest of the group, as also indicated in Kubala et al (2003). A detailed discussion of reservoir filling and migration in the Greater Heimdal Area is beyond the scope of this paper and is discussed in Bhullar et al (1998Bhullar et al ( , 1999, Larter et al (2000); di Primio (2002); Ritter et al (2000).…”

Characteristics and formation mechanism of polygonal faults in Qiongdongnan Basin, northern South China Sea

“…The implication of polygonal faults has been the focus in recent years. Some scholars recognized polygonal fault as a conduit of fluid (Gay et al, 2007(Gay et al, , 2006a(Gay et al, , b, 2004Hustoft et al, 2007;Trincardi et al, 2004;Bünz et al, 2003;Cartwright, 1994), as pathway of sand intrusion (Shoulders et al, 2007;Hansen and Cartwright, 2006;Larter et al, 2000;Lonergan and Cartwright, 1999) and of salt diapir injection (Hansen and Cartwright, 2006). Wu et al (2009) firstly identified a polygonal fault system in the northern South China Sea and studied the geometry and the implications of these polygonal faults.…”