BP drill8 Jul 2017 12:39
Finally found something on the BP drill that was published on 28 June 2017 on a subscribe only site.
So BP have drilled several hundred meters down and then a side track to allow them to hydraulically fracture the tight gas below the current discovery, hence why it has taken so long. See below.
Where developed in any thickness, the Zechstein carbonates are generally tight and only a couple of fields, such as Wissey, sustained any meaningful production, but were short-lived.
Tight gas fields generally require some form of stimulation from acid wash, through acid frac in vertical wells to extended reach horizontal wells with multistage massive sand propped fracs, such as at Clipper South.
Clipper South and Ensign, operated by Ineos and Centrica, respectively, were both brought on-stream in 2012 with initial reserves of 210 Bcf and 31 Bcf, respectively.
Clipper South has performed particularly well, whereas the Ensign field has underperformed significantly, reports WGEG.
Looking forward, the future development potential of tight gas discoveries appears to be limited, Moseley believes.
Cluff Natural Resources, a small publicly listed UK company, is attempting to progress two tight Zechstein discoveries, though it is having to seek third party funding in order to drill a proof of concept well.
Reduced exploration activity in the region means the addition of new tight gas discoveries is currently limited.
However, BP, with partners Perenco and Premier, is currently drilling a heavily deviated well targeting the Namurian to the south of the Ravenspurn field, which if successful has the potential to open up a new tight gas play in the region.
A sidetrack to the initial well, which spudded in December 2016, is currently drilling.
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