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Archive for the ‘Canada’ Category

State-owned Chinese National Offshore Oil Corp. (CNOOC) has now joined Exxon in filing an arbitration claim to establish their right over Hess’s share of the prolific Stabroek block offshore Guyana. How did CNOOC acquire its 25% share in the block?

So, an apparent afterthought in CNOOC’s takeover of Nexen has (1) proven to be extremely profitable, (2) given the company and the Chinese government leverage in the Exxon-Chevron supermajor dispute, and (3) opened the door for CNOOC to increase their interest in the massive Stabroek field.

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The Fraser Institute’s 2023 Canada-US Energy Sector Survey of senior executives in the upstream oil and gas sector provided data for assessing the competitiveness of US and Canadian jurisdictions. The resulting perception index (below) ranked Wyoming at the top with a score of 100.0 and California at the bottom with a score of 0.0. Perhaps one or more of the respondents have been mired in the California decommissioning quagmire. ☹

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The CNLOPB has announced contingent resources of 340 million bbls for the Cambriol discovery which would be co-developed with 2 nearby discoveries as part of Equinor’s Bay du Nord project. Per CNLOPB estimates, this brings the Bay du Nord resource total to 1.132 billion bbls. Equinor has announced that 2 exploratory wells will be spudded this summer. Positive results would further strengthen the case for Bay du Nord development.

contingent resources per CNLOPB (million bbls)
Bay du Nord407
Cappahayden385
Cambriol340
project area total1132
“Contingent Resources” are volumes of hydrocarbons, expressed at 50% probability, assessed to be technically recoverable that have not been delineated and have unknown economic viability.

Meanwhile, Terra Nova production is ramping up after a long hiatus for FPSO refurbishment, remarkable Hibernia has produced more than double the original resource estimate of 520 million bbls and is still producing about 60,000-70,000 bopd, and Hebron is impressively producing about 120,000 bopd on average.

There is indeed reason for optimism about North America’s only Atlantic production in what is arguably the continent’s (world’s?) most challenging operating environment.

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Short answer: Yes!

Ocean Ranger sign
recovered Ocean Ranger sign

A good article and video on the topic are linked. During my last visit to St. John’s, the late Charles Smith gave me an excellent tour of the Marine Institute that is featured in the video. The Institute is an outstanding training facility that has reduced operating risks offshore Newfoundland and elsewhere.

Posts about the Ocean Ranger tragedy.

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Ed Tennyson

Edward J. Tennyson passed away last Friday at his Smith Mountain Lake, Virginia home. Ed worked in the Department of the Interior’s offshore program for more than 20 years, and arguably has done more than any single individual to advance oil spill response capabilities. A few of Ed’s many achievements:

  • Ohmsett: EPA operated the Ohmsett spill response test tank in Leonardo, New Jersey, beginning in the early 1970s, but the facility fell into disrepair in the 1980s. Thanks to Ed’s vision and persistence, and the enactment of the Oil Pollution Act of 1990, the Minerals Management Service (MMS) began restoring the facility. Ed led the effort and did everything from operating forklifts to designing upgrades. Senator Frank Lautenberg (NJ) and a host of dignitaries participated in the grand reopening event in 1992. It was an amazing day, and Ohmsett, MMS’s only industrial facility, has exceeded even Ed’s lofty expectations. 
  • Burning oil slicks: Ed and a few of his US and international partners were the first to consider in situ burning as an oil spill response method. After some lab work, Ed proposed larger scale testing at Ohmsett in the presence of ice. The testing was amazingly successful, removing almost all of the oil. When Ed told a leading skeptic about the impressive results, his response was “you didn’t do it right.” 😀 
  • Newfoundland burn: Because research spills were prohibited in US waters, Ed worked with his Canadian partners to conduct an in situ burning test offshore Newfoundland in 1993. Ed was an amazing leader during any kind of field trials, and was always the first person on the dock directing team members to their stations!
  • Remote sensing: Ed’s research led to a patent on the use of shipborne radar for locating oil slicks. Ed greatly advanced this capability by developing tools for airborne mapping and thickness determinations. As Ed frequently said, “90% of the oil is in 10% of the area.” By identifying where the oil was thickest, you could optimize spill response. (Ed was also an expert at identifying slicks with what he called his mach 20 eyeball 😀).
  • Chemical treatment: Ed was a leader in researching dispersants, herding agents, and other chemical methods for preventing spills from impacting shorelines or other sensitive areas.

Ed was an entertaining and informative speaker and was often called upon to brief congressional panels, and discuss his research at public meetings and professional conferences. He was rightfully a media darling and was often contacted for comments on oil spill response matters. Perhaps his most famous quote was in the Wall Street Journal during the Valdez spill in Prince William Sound. Ed described the spill response as follows: “Like mowing a 40 acre field with a 1/4 inch lawn mower.” 😉

RIP Ed, you made a difference!

Newfoundland Offshore Burn Experiment, 1993

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Newfoundlander Howard Pike shared this interesting video.

BP’s Ephesus well – why was it a failure?

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World Bank flaring data have some limitations as discussed in a previous BOE post. However, they provide an objective means of estimating and comparing flaring volumes worldwide, and therefore merit close attention.

The latest World Bank data tell us that significant gas flaring issues persist. Worldwide, 138,549 million m3 of gas were flared in 2022. This equates to a massive 4 tcf, the equivalent of the reserves in a major gas field and more than 5 times the total gas production in the Gulf of Mexico in 2022.

The top ten “flarers” are listed below. Each of these fields flared from 19 to 42 bcf. For comparison, the top ten GoM gas producers in 2022 produced 10 to 57 bcf, so single fields are flaring more than GoM companies are producing in total. Assuming for discussion purposes a gas-oil ratio of 1000 cu ft/bbl, all of the gas associated with 19 million to 42 million barrels of oil production was wasted from each field.

Posted below are the World Bank’s flaring intensity data (m3 of gas flared per bbl of oil produced) for the 10 countries with the highest flaring volumes. Venezuela’s flaring intensity rose to 44.6 m3/bbl in 2020, before declining moderately the following 2 years. 44.6 m3/bbl equates to 1575 cu ft/bbl. This gas flaring to oil production ratio implies that a very high percentage of Venezuela’s associated gas production was flared.

Here in North America, we have flaring issues of our own. Mexico’s Cactus Field is a top ten flarer (first table above) with 534.5 million m3 flared in 2022. The World Bank also lists 6 Permian Basin fields with >50 million m3 of gas flared in 2022.

Zeroing in on the US/Canada offshore sectors, fields with >1 million m3 of gas flared (2022) are listed below. Four of the top 7 are offshore Alaska and Newfoundland where the gas cannot currently be marketed and reinjection, field use, and flaring are the only options. Can production from these fields be better managed to reduce flaring volumes?

fieldoperatorm3 (millions)f3 (millions)
White Rose (Nfld)Cenovus41.691472
Hibernia (Nfld)HMDC40.991448
ShenziBHP31.341107
Northstar (AK)Hilcorp11.23397
ConstitutionOxy10.76380
PompanoTalos10.54372
Endicott (AK)Hilcorp10.07356
UrsaShell8.19289
MarmalardMurphy6.62234
LuciusOxy3.09109
MarlinOxy3.08109
MarsShell2.278
HolsteinOxy1.4852

The extraordinary 1.1 bcf of gas that was flared at the Shenzi field may help explain the large (1 bcf) increase in oil well gas flaring in the Gulf of Mexico in 2022. Based on the World Bank data and ONRR data for the GoM, Shenzi accounted for 16% of GoM oil-well gas flaring in 2022. As noted in that post, more regulator/industry transparency on lease and field specific flaring is needed. ONRR’s posting of flaring and venting data is a positive step, but it doesn’t include lease specific data and doesn’t explain major flaring episodes.

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The Jones Act, protectionism at its finest, was enacted 113 years ago, and stipulates that vessels which transport merchandise or people between two US points must be US built, flagged, owned, and crewed. Congress tightened the screws further by ordaining that offshore energy facilities, including wind farms, are US points. That precludes the transportation of wind turbine components from US ports to offshore wind farms.

The Jones Act has thus provided an opportunity for the Port of Argentia, a former US Navy base in southeast Newfoundland, and the port is set to become a key node in the offshore wind supply chain. Monopiles constructed in Europe will be stored in Argentia, until they are delivered to US wind farms in the North Atlantic. Kudos to the folks at the Port of Argentia for taking advantage of this opportunity.

Dutch company Boskalis will be transporting the monopiles, which are expected to land in the Port of Argentia in a few weeks. (Boskalis)

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An international regulatory colleague brought this puzzling RigZone article to my attention. Quotes:

“From one perspective, one can look at the overall absence of risk – from this perspective, we can easily say that either the United Kingdom’s North Sea or Canada’s Nova Scotian continental shelf is the safest region for offshore oil and gas operations right now,” Robak told Rigzone.

“Canada’s offshore industry accounts for approximately one million barrels per day, and its geographic location along the Nova Scotian continental shelf has been a benefit in that there is little to no risk to its continued operation on a day-to-day basis,” Robak said.

Comments:

Scotian shelf

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41 years ago today, 84 men lost their lives on the Ocean Ranger. BOE’s 40th anniversary posts can be viewed here and here. The excellent 40th anniversary tribute video is embedded below. Remember these heroes.

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