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development since 2009, was trialed for correctly but issues with correctly but issues with

Drilling the ? rst time offshore this summer, on a downhole pump meant a downhole pump meant

Statoil’s Smørbukk South Extension ? eld, full results were not gained. full results were not gained. near the Asgard ? eld in the Norwegian Through a project supported by Through a project supported by

Sea. It is a tight sandstone reservoir, esti- the Joint Chalk Research Group, the Joint Chalk Research Group, mated to contain 16.5 MMboe, but previ- consisting of Shell, BP, Total, consisting of Shell, BP, Total, ously deemed non-commercial Maersk Oil, Hess, Eni, Statoil, Maersk Oil, Hess, Eni, Statoil, due to the tight formation, ConocoPhillips, Dong and the ConocoPhillips, Dong and the low permeability and porosity Danish North Sea Fund, the Danish North Sea Fund, the ranging from “bricks to tiles,” Fishbones jetting tool has also Fishbones jetting tool has also according to Statoil. been trialed twice onshore Texas in hard been trialed twice onshore Texas in hard

A dual-lateral produc- Austin chalk and tight fractured lime- tion well with about 5200m stone – both on horizontals. In the ? rst, 60 reservoir exposure was drilled, laterals were created from a 4½in comple- targeting a 30m-thick oil bear- tion with 15 Fishbones subs, each with ing formation above a depleted three needles, in a 6½in open hole mother

Fishbones’ Dreamliner. gas reservoir. Horizontal well bore. While it was a low-producing barriers exist within the sand formation, production, ? nd the chemicals and know barriers exist within the sand formation, production, ? nd the chemicals and know well, at just a few barrels, production was limiting vertical ? ow. One of the laterals from which part of the well, and so reser- increased by a factor of 4 to 5 times, over had the Dreamliner treatment. A 5½in voir, the production came from. 30 days, says Fishbones. The ? rm is hop-

Dreamliner completion with 48 ? sh- Renli says the operation appears to ing to get another pilot well run through bones subs, each with three needles, was have been a success. Statoil has likewise the joint research group. installed in the 8½in open hole, creating hailed the project a success and said it Fishbones has also created a simula- 144 mini-laterals, spaced across selected would be looking where else it can use tion tool which enables operators to zones targeted for stimulation. the technology. However, production input well data to see if their well would

In addition, Resman chemical tracers data has not been revealed. be suited to this technology. onshore before being run in an open are being used – these are installed along Prior to the Smørbukk South applica- Renli is pleased with the results so hole. It is design so anchors can be run the casing before it is run and are released tion, Fishbones had trialed the Fi shbones far and hopes production data from in between the joints to avoid tempera- according to pre-determined criteria, system in an onshore coalbed methane Smørbukk South will validate this new ture elongation of the completion. When which means the operator can analyze the well in Indonesia. The system installed technology. the string is in position, the liner hanger slips are set and the anchors are posi- tioned then set by ? owing into the well.

The ? ow is increased, which bursts the disc in the casing shoe and, as the ? ow increases, the turbines and needles reach the working rpm. Rotation releases the needles from the drill through bits and they then push into the reservoir, with some 25kilo force from the ? ow. Pressure responses during drilling indicate full extension of the needles. Cuttings pow- der is circulated out of the lateral and up the mother bore to surface. Once the

The World’s Largest needles are fully out, the liner hanger element is set sealing the annulus. The

Subsea Exhibition liner hanger setting tool is pulled and the upper completion is run and the well is and Conference allowed to produce. Production occurs in the annulus and all the needle annuli.

Aberdeen AECC 03-05 Feb 2016

Fishbones is looking at ways to remove the turbines and needle ends from open hole so intervention operations and tool- ing can be run.

One of the bene? ts of using the needles, or Fishbones technology, instead

Conference Principal Media Principal Media Supporting

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Sponsor Sponsor Partner Sponsors of a traditional acid stimulation job is that there is more control over how far the stimulation goes into the reservoir, enabling the operator to avoid nearby gas or water zones, Renli says.

The technology, which has been in oedigital.com December 2015 | OE 11298-SubseaExpo16-OE-AD-180x124.indd 1 13/11/2015 15:07 41 040_OE1215_D&C1_Fishbones.indd 41 11/20/15 5:49 PM