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Author: George Kaplan
UK Offshore Production, 2017 Summary and Projections
A Guest Post by George Kaplan
2017 trends for UK offshore production were disrupted by the stoppage in the Forties pipeline in December, which took several hundred thousand barrels of oil equivalent per day off line. Overall average oil production for the year dropped 61 kbpd (6.4%) and natural gas (including NGPLs) barely changed with an 800 boed drop. With the Forties issue exit rates don’t mean anything, but the running average oil production was on an upward trend in the second half of the year, which will continue through 2018, barring further major outages, while natural gas was noticeably declining and might struggle to maintain 2017s rate this year.
2016 reserve numbers fell for both oil and gas with few discoveries and some negative adjustments. Oil and gas production will decline from 2018, with accelerated falls from sometime in the mid-2020s without major new discoveries (which may include onshore shale gas, but that is not covered here).
UK C&C
Through 2015 and 2016 a lot of smaller, short cycle developments came on line as a result of the boom from the high price years from 2011. Now larger projects started in those years are ramping up. The largest is the Glen Lyon FPSO, which is part of a revamp of two mature fields: Scheihallion and Loyal. Additionally at the end of 2017 Kraken, Catcher (including Burgman and Varadero fields) and WIDP (for fields Harris and Barra) were started and will continue to ramp up through early 2018. Clair Ridge was commissioned in late 2017, it has dry trees and a single platform drilling rig; production will ramp up as the wells are completed (they may need to complete production/injection pairs before being able to produce from each block, which may slow things down a bit). Statoil’s heavy oil field, Mariner with nameplate 55 kbpd, will also start up in 2018, after some delays. The Captain field has started trials of polymer injection, which is intended to ramp up through 2021, and, if successful, will maintain current production rates at around 25 to 30 kbpd.
The availability from some of the larger, mature producers seems to be increasingly impacted by unplanned outages, possibly just due to chance or their age, but maybe also impacted by cost cutting in response to the price drop in 2015. Apart from the Forties pipeline issue, in January the Chevron-operated Erskine field was taken offline by a wax pipeline blockage while pigging, there have been a couple of instances of fields being partially evacuated because of water quality issues, and the Ninian platform was evacuated ahead of a major storm because of doubts over its structural integrity.
Mature Field Decline
GoM Production, 2017 Summary
A Guest Post by George Kaplan
2017 was the highest producing year for oil in the GoM and included the record month in March. Gas, which has tended to come from shallow water wells, had accelerated decline. The production would have been higher but for some disruptions from Hurricanes, in particular Nate, though that had the least impact onshore, and some unplanned outages in November and December due to equipment failures. The failure to Delta House subsea manifold affected Rigel, Otis and Son of Bluto 2 fields, and the first two still appear to be off-line while Son of Bluto 2 resumed production in December (LLOG, the operator, I think calls the Rigel field Neidermeyer, which is much better for the Animal House theme). The Enchilada gas pipeline appears to have ruptured at the main platform and has resulted in Baldpate, Salsa, Llano, Cardamom and Magnolia going off-line. Plans were recently announced to restart Baldpate/Salsa, which do not go through the platform, but I haven’t seen any notice of the restart.
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|
Oil Average |
Oil Exit Rate |
Gas Average |
Gas Exit Rate |
Total Average |
Total Exit Rate |
| (kbpd) | (kbpd) | (mmscfd) | (mmscfd) | (kboed) | (kboed) | |
2016 |
1600 | 1728 | 3308 | 3363 | 2151 | 2289 |
2017 |
1685 | 1570 | 2955 | 2381 | 2177 | 1967 |
Change |
85 | -158 | -354 | -982 | 26 | -322 |
Ratio |
5.3% | -9.1% | -10.7% | -29.2% | 1.2% | -14.1% |
C&C Production
December production numbers were dominated by the unplanned outages, so comparisons with November don’t mean much. As well as the two issues given above the Tahiti and Caesar/Tonga fields were off line for a few weeks, though I have seen no news why (these share a common set of leases but are produced separately to the Tahiti and Constitution platforms). Each month that these are three issues hold current outages would knock about 10 to 12 kbpd off the achievable average production for 2018.
Despite recent variability it certainly looks like the new fields brought on since late 2013, and which have seen all the net growth since then, have peaked. Any average decline rate can’t really be extrapolated yet, given the recent upsets, but the BOEM reserve estimate updates, due in the next couple of months, will provide better R/P numbers as there will be longer operating data for all the fields.
Brazil and Mexico, 2017 Summaries
A Guest Post by George Kaplan
Brazil
Brazil had a fairly uneventful 2017 for C&C production. Overall production was up 4.5% at 957 mmbbls (114 kbpd average), but the December exit rate was down 4.5%, or 124 kbpd, at 2612 kbpd. There were only two new platforms with significant ramp-ups, and one of those went off line for a couple of months late in the year. The Libra (now Mero) extended test FPSO came on line in November but had achieved only 11 kbpd.
Pre-salt production exceeded 50% for the first time. It was 1356 kbpd, or 52%, in December compared to 1262, or 46%, for December 2016. There were 85 pre-salt wells up from 68, but average production for each had fallen from 19 kbpd to 16, which is as expected as they were drilled mostly on producing platforms.
Petrobras owned 94% of December production, with Statoil at 2.4% (63 kbpd) and Shell, from their BG purchase at 2.1% (57 kbpd); for 2016 the numbers were 94%, 2.1% and 2.0%.
(Note that December water data wasn’t available at the time of writing so the water cut values have been assumed to be the same as November for the chart.)
Santos platforms increased overall, but some of the older ones may be showing signs of coming off plateau. Campos platforms declined and the rate may be increasing as the water cut growth is accelerating.
Open Thread Non-Petroleum: March 1, 2018
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