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Markwells Wood-1 well suspension

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Dear Health and Safety Executive,

With regard to the Markwells Wood well (MW-1) which has been operated by both Northern Petroleum in 2010, UKOG at present) (PEDL126)

1. Please can you send copies of the construction process and materials used for the Markwells Wood -1 well which was built and flow tested for exploratory purposes in 2010-2011

2. The well was suspended and capped, please send details about the procedure and copies of logs, notes, correspondence from the operator to HSE ?

3. Copies of all the monitoring logs, correspondence regarding the casing and cement integrity
4. Type of cement used, cement additives and quantities in the construction of MW-1
5. Pressure rating log
6.Material submitted by the operator on the particulars of the geological strata and formations, and of fluids within them, through which the well passed
7.Please send the particulars of the fluids used to produce within the well during the well operation
8. How deep was the cement placed within the well for suspension? What is the type of cement and cement additves used for the suspension
9. How does the HSE define "temporary suspension"(ie how much time is considered temporary)
10. What measures are in place by the HSE in the event of reworking a well?
11 . Notification of any hazards identified by operator to the HSE when constructing the original well
12. At what pressures well fluids were injected into MW-1 during the flow testing ?
13. How many times has the operator monitored the site post suspension?
14. Who is responsible for the monitoring of the well post abandonment?
15. Who would be liable for any clean up/mitigation if there was contamination due to well integrity failure, leaking or migration of hydrocarbons from the bottom of the well post restoration at MW-1 and after the end of the operators license term?

Thank you for your help with this request

Kind Regards,
Emily Mott

Yours faithfully,

Emily Mott

Health and Safety Executive

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Thank you for contacting the Health and Safety Executive.

Health and Safety Executive

Dear Ms Mott

 

Environmental Information Request Reference No: 201711289

 

Thank you for your request for information about:

 

Various queries regarding Markwells Wood 1 well suspension.

 

Your request was received on 16^th November 2017 and I am dealing with it
in accordance with the Environmental Information Regulations 2004. Under
the terms of the Regulations you are entitled to a response within 20
working days of receipt.

 

If for any reason we are unable to meet this deadline we will keep you
fully informed of the reasons for this and will tell you when you can
expect a response.

 

Guidance on how the Health & Safety Executive deals with requests under
the Freedom of Information Act and Environmental Information Regulations
can be found on the HSE website at [1]http://www.hse.gov.uk/foi/index.htm

           

If you have any queries about this letter, please contact me. Please
remember to quote the reference number above in any future communications.

 

Yours sincerely

 

Jennifer Donaldson

FOI Officer

 

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References

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1. http://www.hse.gov.uk/foi/index.htm

Health and Safety Executive

Dear Ms Mott

 

Environmental Information Regulations Request

Reference No: 201711289

 

Further to your request for information under the Environmental
Information Regulations, which was received on 16^th November 2017 by the
Health and Safety Executive (HSE), I am writing to let you know that the
time limit for response needs to be extended.

 

Although the Regulations normally require us to send a response within 20
working days, it is sometimes necessary to extend this limit in certain
circumstances.

 

Apologies, but it has taken longer than anticipated to collate the
information. In this case we will need to extend the response deadline by
a further 20 days because of the complexity/volume of your request having
just completed the search for the relevant information within scope.  We
have still to consider the public interest test for disclosure.

 

I hope to let you have a response by 7th January 2018 and I would like to
apologise for any inconvenience this delay may cause. In the meantime, if
you have any queries about this letter please contact me quoting the
reference number above.

 

If you are unhappy with the decisions made by HSE you may ask for an
internal review within two calendar months of the date of this letter by
writing to me.

 

If you are not content with the outcome of the internal review you have
the right to apply directly to the Information Commissioner for a
decision. The Information Commissioner can be contacted at:

 

The Information Commissioner’s Office

Wycliffe House

Water Lane

Wilmslow

Cheshire

SK9 5AF

Tel: 01625 545700

Fax: 01625 524510

Email: [1][email address]

Website: [2]http://www.informationcommissioner.gov.uk

 

Yours sincerely

 

Jennifer Donaldson

FOI Officer

 

 

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References

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1. mailto:[email address]
2. http://www.informationcommissioner.gov.uk/

Health and Safety Executive

1 Attachment

Dear Ms Mott

 

Freedom of Information Request Reference No: 201711289

 

Thank you for your request for information about:

 

Various queries regarding Markwells Wood 1 well suspension.

1. Please can you send copies of the construction process and materials
used for the Markwells Wood -1 well which was built and flow tested for
exploratory purposes in 2010-2011

 

2. The well was suspended and capped, please send details about the
procedure and copies of logs, notes, correspondence from the operator to
HSE?

 

3. Copies of all the monitoring logs, correspondence regarding the casing
and cement integrity

 

4. Type of cement used, cement additives and quantities in the
construction of MW-1

 

5. Pressure rating log

 

6.Material submitted by the operator on the particulars of the geological
strata and formations, and of fluids within them, through which the well
passed

 

7.Please send the  particulars of the fluids used to produce within the
well during the well operation.

 

8.  How deep was the cement placed within the well for suspension? What is
the type of cement and cement additives for the suspension.

 

9. How does the HSE define "temporary suspension"(ie how much time is
considered temporary)

 

10. What measures are in place by the HSE in the event of reworking a
well?

 

11 . Notification of any hazards identified by operator to the HSE when
constructing the original well.

 

12. At what pressures well fluids were injected into MW-1 during the flow
testing?

 

13. How many times has the operator monitored the site post suspension?

 

14. Who is responsible for the monitoring of the well post abandonment?

 

15. Who would be liable for any clean up/mitigation if there was
contamination due to well integrity failure, leaking or migration of
hydrocarbons from the bottom of the well post restoration at MW-1 and
after the end of the operators license term?

 

Your request was received on 16^th November 2017 and I am dealing with it
under the terms of the Environmental Information Regulations 2004 (EIR).
Please accept my apologies for the delay in responding to you.

I can confirm that the Health and Safety Executive holds the following
information in relation to this well:

 

1.      Markwells Wood 1 HSE Notification Rev1.0 06/09/10

2.      Email to HSE dated 11/10/10

3.      Markwells Wood 1 HSE Notification Rev1.1 17/11/10 (material
change)

4.      Markwells Wood 1 HSE Notification Rev1.2 22/12/10 (material
change)

5.      Markwells Wood 1 Appraisal Well Completion and Well Test 25/7/11

6.      Email to HSE dated 25/7/11

7.      Email to HSE dated 3/8/11

8.      Weekly drilling reports from 21/11/2010 to 22/09/2011

 

This information is being partially disclosed, personal information is
being withheld by virtue of the exception in EIR regulation 13(1)
(personal data).  Due to email size limitations the first attachment
attached and the rest of the data will be sent in 3 separate emails.

Where the information requested is not in the disclosed documents the
information is not held by HSE.

 

In response to item 9, HSE does not define how long is considered
temporary.

 

In response to item 10, HSE monitors work activity throughout the
lifecycle of a well by assessing the well notification submitted by the
operator to us at least 21 days before work starts on the well. This
allows inspectors to assess well design before construction starts.
Further notifications are required if the well is re-worked and prior to
the start of abandonment work. HSE reviews the  weekly operations reports
submitted by the operator to ensure work on the well is progressing to
plan and risks are being managed effectively, and make take intervention
action if necessary in accordance with our [1]Enforcement Policy Statement
and [2]Enforcement Management Model.

 

In response to item 13 no information is held by HSE

 

Your queries numbered 14 and 15 are dealt with by BEIS and enquiries
should be directed to them.

The information supplied to you continues to be protected by the
Copyright, Designs and Patents Act 1988. You may re-use this information
(not including logos) free of charge in any format or medium, under the
terms of the Open Government Licence. To view this licence, visit
[3]http://www.nationalarchives.gov.uk/doc/o... or
write to the Information Policy Team, The National Archives, Kew, London
TW9 4DU, or e-mail: [4][email address].

Information you receive which is not subject to Crown Copyright continues
to be protected by the copyright of the person, or Organisation, from
which the information originated. You must ensure that you gain their
permission before reproducing any third party (non-Crown Copyright)
information.

If you have any queries about this letter, please contact me. Please
remember to quote the reference number above in any future communications.

If you are unhappy with the decisions made by HSE you may ask for an
internal review within two calendar months of the date of this letter by
writing to me.

If you are not content with the outcome of the internal review you have
the right to apply directly to the Information Commissioner for a
decision. The Information Commissioner can be contacted at:

 

The Information Commissioner’s Office

Wycliffe House

Water Lane

Wilmslow

Cheshire

SK9 5AF

Tel: 01625 545700

Fax: 01625 524510

Email: [5][email address]

Website: [6]http://www.informationcommissioner.gov.uk

Yours sincerely

 

Jennifer Donaldson

FOI Officer

Jennifer Donaldson / Business Support Administrator /Energy Division.

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References

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1. http://www.hse.gov.uk/enforce/enforcepol...
2. http://www.hse.gov.uk/enforce/enforcemen...
3. http://www.nationalarchives.gov.uk/doc/o...
4. mailto:[email address]
5. mailto:[email address]
6. http://www.informationcommissioner.gov.uk/

Health and Safety Executive

1 Attachment

Dear Ms Mott,

 

Please find attached redacted data numbered 3-4.

 

Kind regards,

 

Jennifer Donaldson / Business Support Administrator /Energy Division.

Health & Safety Executive, Lord Cullen House, Fraser Place, Aberdeen, AB25
3UB

External Direct Line +44 020 3028-1538 / Email:
[1][email address].

Work Pattern: Mondays & Tuesdays only

 

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References

Visible links
1. mailto:[email address]

Health and Safety Executive

1 Attachment

Dear Ms Mott,

 

Again, please find attached redacted data for your request numbered 5-7.

 

Kind regards,

Jennifer

 

Jennifer Donaldson / Business Support Administrator /Energy Division.

Health & Safety Executive, Lord Cullen House, Fraser Place, Aberdeen, AB25
3UB

External Direct Line +44 020 3028-1538 / Email:
[1][email address].

Work Pattern: Mondays & Tuesdays only

 

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References

Visible links
1. mailto:[email address]

Health and Safety Executive

1 Attachment

Dear Ms Mott,

 

Finally, please find attached redacted item 8 which is the last attachment
for your request.

 

Kind regards,

Jennifer

 

Jennifer Donaldson / Business Support Administrator /Energy Division.

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