Dorking Advertiser – 16 Aug Article Headline

You may have seen the article on page 7 of the Dorking Advertiser yesterday that bore the headline “Earthquakes NOT linked to oil drilling in the county”.

Whilst the article is factually correct, it omits many things that were said, and the headline is totally misleading.

DA NO LINK TO DRILLING

The article fails to point out that the planning case officer said:

“we’ve had a response back from the OGA (the Oil and Gas Authority) and they have confirmed that they have consulted with the BGS (the British Gelological Survey), and academic experts and at this stage, they find it very difficult to see how the resumption of small volume production and water reinjection at the Brockham field could have triggered the recent seismic events.”

 “the OGA have said they will be auditing the records for the Brockham field regarding the reporting of production and injection volumes, and (…) if they see any evidence that operations at the Brockham field have resulted in seismicity, then they will instruct Angus to change their planned activity.”

This account suggests that a causal link cannot be ruled out at this stage, and is at odds with the statement made by the Deputy Development Planning Team Manager, Stephen Jenkins, which was reported in the Dorking Advertiser. Mr Jenkins said:

“but they” (the OGA) “are preparing a statement along those lines, that there is no causal link between the earthquakes and particularly Brockham. It’s the distance and the low levels of volumes that are important here.”

Mr Jenkins also said, concerning the Oil and Gas Authority:

“We’ve just got an initial email, and they haven’t made a formal statement, but that is coming.” 

But the Dorking Advertiser reporter quoted a spokeswoman for the OGA that

“no statement to the public about the earthquakes had been planned”

 and that

“Based on the evidence it is difficult to see how oil and gas activities in the area could be linked to these seismic events.”

So, according to the spokesperson, the OGA are not ruling out a causal link based on available evidence.

We would also like to refer you to a letter sent by four eminent academic geologists to the Secretary of State, Greg Clark, and the Chief Executives of Surrey County Council, the Oil and Gas Authority, the Environment Agency and the Health and Safety Executive. Its shorter version, copied below, was published in the Times on 6th August 2018. The letter calls for a moratorium on all drilling, re-injection and flow testing until the records of fluid injection and local faulting activity have been comprehensively surveyed and interpreted, and the triggering mechanism for this quake cluster properly understood. One of the signatories is none other than Prof Richard Selley, a resident of Brockham Park.

In the light of this, are you reassured by the statement of Mr Jenkins? Or do you, like us, the BGS and several prominent scientists, think that a causal link is possible and more analysis is needed?

Times_letter_6aug18

 

Our thoughts on SCC’s decision to grant permission for 3 years

Surrey County Council Planning Committee has given the go ahead to plans for further oil extraction at Brockham – despite a call by leading geologists for a temporary halt to hydrocarbon exploration in the area in Surrey following a swarm of 12 earthquakes.

The scientists are concerned that activities at either nearby Horse Hill or Brockham may have contributed to the recent earthquake swarm and that the earthquakes might have compromised the safety of existing wells.

We’re shocked and disappointed that the members of the planning committee so blatantly ignored the advice they’ve received from experts.

It appeared that the committee was swayed by a-last minute intervention from the Oil and Gas Authority, who officers said was the regulatory body responsible for monitoring and responding to seismic activity. An unofficial statement from them was read out at the meeting saying that it was unlikely there is a causal link between reinjection at the Brockham site and the earthquakes.

They seem to have ignored the significant increase in volume of reinjected water at Brockham reported for April, which coincided with the onset of earthquakes. We think this is concerning and any relationship between the two needs to be investigated further given that wastewater reinjection has been proven to be the main cause of earthquakes in the Central U.S.

We would also like to point out that the data available on the OGA’s portal is several months old and only an aggregate monthly number of water injected is provided. It is insufficient for any kind of credible analysis. We are calling for detailed and up to date records of injection data at Brockham to be immediately released to allow for independent analysis.

The Oil & Gas Authority can hardly be regarded as independent or impartial. Its objective is to support the industry  in maximising the economic recovery of oil and gas, and it is largely funded by an industry levy. We are disappointed that the planning officers relied on such advice in favour of the recent advice from a group of leading independent geologists.

The planning permission was granted for the full three-year period, even though appraisal phase normally takes weeks not years. Angus Energy explained that this was necessary to test a new geology.

This is a cause concern, as Angus are targeting an entirely new geology that has never been produced from anywhere in the country, whilst operating under an old style environmental permit. There is a complete lack of monitoring under the existing permit of many of the proposed and ongoing activities. This puts the local environment and people at risk.

The Brockham site is currently going through a re-permitting process by the Environment Agency, a process that started over a year ago. It is unclear when the new permit will be put in place. The EA didn’t submit an objection to the proposals, but they did submit a comment to inform planning officers that a number of issues are still being evaluated and additional data is being sought from the operator, including on the flaring of gas, well stimulation treatments using acid, wastewater re-injection.

We are convinced that Angus will start commercial production under this appraisal permission, which is what they had consistently told their investors. This is reminiscent of the events in January 2017, when Angus drilled an unauthorised sidetrack whilst openly communicating this to investors. It clearly demonstrates a cavalier attitude from Angus to both the local authority and the local community. The assurances from the planning authority that they will expect the maximum standards of professionalism and transparency gives us no confidence whatsoever.

This permission was given against the objections by the Parish Council, the Mole Valley Council and the local people. When this operation begins, it will make the area less desirable to live in and only Angus board members and investors are set to prosper.

 

Link to webcast from meeting.

Letter From Four Geologists Calls For a Moratorium on Hydrocarbon Exploration In The Area Affected By Earthquakes (Including Brockham)

Dear BOW Followers,

 
Please see below an open letter on the recent cluster of earthquakes in Surrey published on Monday (6/8/18) in the Times newspaper. An accompanying article is at this link.
 
The letter is directly relevant to the current planning application for the Brockham well site, which will be decided on Wednesday morning (8/8/18) at County Hall, Kingston upon Thames, Surrey KT1 2DN. The meeting starts a 10:30am and is open to the public. 
 
A longer version of the letter was sent to Greg Clark, the Secretary of State for Business, Energy and Industrial Strategy and the chief executives of Surrey County Council, the Oil and Gas Authority, the Environment Agency and the Health and Safety Executive and has been written by four leading academic geologists from both sides of the “fracking” debate, including Professor Richard Selley who resides in Brockham.  
 
The letter calls for a moratorium on all drilling, re-injection and flow-testing in the affected area be put in place immediately, to remain in force until the records of fluid injection and local faulting activity have been comprehensively surveyed and interpreted, and the triggering mechanism for this quake cluster phenomenon is properly understood, and that, in the interest of safety, a respect distance is made mandatory when drilling near faults.
 
A related article in Drill Or Drop goes into more depth on the available data on fluid injection.
 

Also on a related note, the complete set of videos and slides from our recent public meeting discussing the earthquakes and the current application are now available here.

Times_letter_6aug18.jpg

Best,

BOW

https://brockhamoilwatch.org/

Twitter: @BrockhamWatch

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Public Meeting – 25th July

On Wednesday evening, 25th July, we gave a presentation to a crowded Brockham Village Hall Bar concerning this current application as well as recent earthquakes and potential connections with oil & gas activities at Brockham and Horse Hill.  Until the British Geological Survey results are known then no-one can say definitely that the earthquakes were caused by the oil companies activities but there is wider evidence linking oil and gas activities with increased seismicity.

PRESENTATION SLIDES 

You can view the presentation here

VIDEO 

PART 1 – Earthquakes 

PART 2 – Earthquakes Continued

PART 3 – Brockham Planning Application MO/2018/0444

PART 4 – Brockham Planning Application MO/2018/0444 Continued

 

BROCKHAM DECISION – Wednesday, 8 Aug 2018, 10:30am, Surrey County Council in Kingston

Dear BOW Followers,

After several delays, the Surrey planners have now confirmed that the decision over Brockham (part retrospective) application for unauthorized sidetrack BRX4Z (drilled over 1.5 years ago!), its appraisal, and the retention of donor well (which should have been plugged years ago) is on the agenda for Surrey County Council Planning and Regulatory Committee meeting on 8th August at 10:30am at County Hall, Kingston upon Thames, Surrey KT1 2DN. (Link to Drill Or Drop Report).

Officers are recommending APPROVAL for the entire period of 3 years, which we are particularly worried will allow Angus to move into commercial production under the benefit of this appraisal permission (if granted). Angus have clearly and consistently confirmed this plan to investors via official channels, and we have pointed it out to the officers, but they seem to have ignored it.

So, if granted, this application will allow for the first very long-term testing/commercial production from the unconventional Kimmeridge rocks in the Weald Basin. These rocks have never been produced from anywhere.

This is concerning because, according to expert opinion from David Smythe, Emeritus Professor of Geophysics in the University of Glasgow, these rocks can only be produced with the use of acid stimulation or fracking.

What’s even more concerning is that the Brockham site is operating under an old-style environmental permit (read article on this here), which neither regulates nor monitors many of the activities associated with production from the rocks: gas flaring and operation of an enormous generator*, well stimulation treatments, and also the ongoing practice of water re-injection, which has created so much concern as a potential cause of the recent swarm of earthquakes in Surrey.

The old style permit will be in place for as long as Angus take to provide the Environment Agency with all the information needed to assess the issue of a new permit (this process has already taken well over a year and there is no end in sight). In the meantime, operations at Brockham are allowed to continue, including the new type of processes required when extracting oil an entirely new, tight geology. We think that this is nothing short of shocking.

The officers failed to mention any of this in their report, even though they received Prof Smythe’s expert opinion, and we made them aware of the risk the approval of this application creates for Brockham whilst it operates under an old-style environmental permit.

So we’d like to urge you to comment if you have not yet done so. You can read more about the issues above here (includes instructions) and here.  You can also find our very popular blog on earthquakes and oil & gas operations here.

And if you are planning on attending the meeting on Wednesday, 8th August, please get in touch with Val on 01737 844013 or email us at contact@brockhamoilwatch.org.

 

*We are very grateful to Frack Free Balcombe Residents Association for their expert submission to SCC regarding emissions to air at Brockham. Angus submitted the relevant technical assessments only in mid-June, at the 11th hour in the assessment of this application. FFBRA point out that the assessments show potential significant impacts of releases of nitrogen dioxide, volatile organic compounds (ex. Benzene, a carcinogen) and H2S (Hydrogen  Sulphide), and that a detailed assessment is needed. Testing of the composition of gas from the Kimmeridge is also needed as much of the assessments are based on entirely unsupported assumptions.

P.S.

On Wednesday evening, 25th July, we gave a presentation to a crowded Brockham Village Hall Bar concerning this current application as well as recent earthquakes and potential connections with oil & gas activities at Brockham and Horse Hill.  Until the British Geological Survey results are known then no-one can say definitely that the earthquakes were caused by the oil companies activities but there is wider evidence linking oil and gas activities with increased seismicity.

You can view the presentation here and the video (Part 1) here.

 

Best,

 

BOW

 

https://brockhamoilwatch.org/

Twitter: @BrockhamWatch

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EARTHQUAKES AND OIL & GAS OPERATIONS

Dear BOW Followers,

According to the British Geological Survey (BGS), there had been no earthquakes in Surrey in the last 50 years; but since April 1 2018, a series of seven tremors (including three of magnitude well above 2 ML and one of magnitude 3.1 ML) has surprised and worried residents around Newdigate and the wider area between Dorking and Crawley. This is at a time of increased oil and gas activity in the county, and many people are making a connection between the two.

We think that serious questions should be asked and investigated, especially in connection with the two oil and gas sites nearest to the epicentres: Brockham and Horse Hill.

In a statement issued following the earthquakes, the BGS say that they are unable to categorically say if these earthquakes are related to hydrocarbon operations though they do not rule out that possibility.

The statement also says that, it is well known that hydrocarbon exploration and production can result in man-made or “induced” earthquakes” and that “such events usually result from either long term hydrocarbon extraction, or the injection of fluids (e.g. hydraulic fracturing) during production.”  The announcement mentions that it seems unlikely that any flow testing at the Horse Hill site would result in induced seismicity.

Brockham

We have written to the BGS to point out that what the statement fails to mention is that there is a re-injection well at Brockham, where produced water had been re-injected for years from operations at the Brockham and Lidsey sites. Both sites were closed for most of 2016 and 2017, but resumed production in March and February 2018 respectively, and water reinjection also restarted at Brockham in March according to the Oil and Gas Authority (OGA) website.

 Based on analysis and studies done in US, the strongest relationship to seismicity has been found where wells re-injected waste water underground for permanent disposal. Over time, pressure can start to build up on geologic faults causing them to slip. Earthquake risk can spread miles away from the disposal wells and persist for more than a decade after re-injection stops. This presents a challenge in analysing a possible link, exacerbated by a lack of reliable earthquake data due to the fact that BGS’s closest monitoring station is located more than 50km away from the estimated epicentres.

Horse Hill

With respect to the Horse Hill site, UK Oil & Gas (UKOG) announced on 27th June that they commenced “production flow test operations.” However, since then Mr. Sanderson, UKOG’s executive chairman said that “there’s been no sub-surface activity since March 2016” on the site. The OGA have confirmed this, but failed to produce any clear evidence to support it.

Given that according to expert analysis, the Horse Hill-1 well was drilled into a fault zone, and that UKOG’s Environment Agency permit allows for injection of acid and chemicals under pressure high enough to squeeze it into the pores of the rock, we think that the activities at Horse Hill should be investigated and closely monitored in order to be certain that UKOG have not triggered the earthquakes and do not trigger them in the future.

Unfortunately, the type of flow test UKOG are intending to perform will not be caught by the OGA’s requirement to monitor seismicity in real time through a “traffic light protocol”, which is only required for sites where hydraulic fracturing is proposed. Therefore, there is no oversight mechanism from the OGA to monitor induced seismicity at Horse Hill. [1]

Conclusion

The convergence of the Horse Hill flow test, resumed operations at Brockham and the earthquakes is at the very least puzzling and needs to be explained.

We think that there are too many unknowns and that operations at Brockham and Horse Hill should be immediately suspended. The reasons for the earthquakes should be thoroughly investigated, the likely cause established and any mitigation required put in place before the operations can continue.

There is an urgent need for monitoring equipment positioned locally to produce better data on earthquake epicentres and depths. Detailed injection information is needed from the regulators or industry to allow for analysis.

Well integrity should be tested as well to check if the earthquakes didn’t cause damage that could lead to environmental pollution.

This is critically important at a time when Surrey is facing a proliferation of applications for hydrocarbon exploration and production, including in some of its most precious areas of outstanding natural beauty.

P.S. What can you do about it? Please see here a useful list from A Voice for Leith Hill.

Best,

BOW

https://brockhamoilwatch.org/

Twitter: @BrockhamWatch

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[1] Oil & Gas Authority: Consolidated Onshore Guidance V.1, November 2017, https://www.ogauthority.co.uk/media/4475/29112017_consolidated-onshore-guidance-compendium_v-10.pdf