KIRBY MISPERTON A WELLSITE KM8 PRODUCTION WELL HYDRAULIC FRACTURE STIMULATION WELL ... · 2017. 9....

KIRBY MISPERTON A WELLSITE

KM8 PRODUCTION WELL

HYDRAULIC FRACTURE STIMULATION

WELL INTEGRITY REPORT

(REF: TE-EPRA-KM8-PO1)

www.third-energy.com Revision 0

12th May 2017

KM8 Hydraulic Fracturing Operations KM8 Well Integrity Report

Uncontrolled if printed KM8 PO1/Rev0/12-05-2017 Page 1

APPROVAL LIST

Title Name Signature

Prepared By Environmental &

Safety Advisor

Reviewed By HSE and Planning

Manager

Approved By Operations Director

REVISION RECORD

Version Date Description

P0 12th May 2017 Draft

Rev 0 12th May 2017 Original Issue

Rev 1

COPYRIGHT

This document has been prepared for and on behalf of Third Energy UK Gas Limited by Zetland

Group Limited.

© Copyright 2017 by Zetland Group Limited

All rights reserved. No part of this document may be reproduced, distributed, or transmitted

in any form or by any means both electronic or mechanical, other than for which it was

intended, without the prior written permission of Zetland Group Limited.



CONTENTS 1. INTRODUCTION .......................................................................................................................... 4

2. KM8 WELL INTEGRITY TEST ........................................................................................................ 4

3. HEALTH AND SAFETY EXECUTIVE ............................................................................................... 5

4. CONCLUSION .............................................................................................................................. 5

APPENDIX 1 – MDC KM8 PRESSURE TEST POST OPERATIONS REPORT ........................................... 6

APPENDIX 2 – KM8 WELL SCHEMATIC ............................................................................................... 8

APPENDIX 3 – HSE CORRESPONDENCE ............................................................................................ 10



**This page has been intentionally left blank**



1. INTRODUCTION

Third Energy UK Gas Limited (“Third Energy”) is proposing to hydraulically stimulate and test the Kirby

Misperton 8 well (“KM8”, drilled by Third Energy in 2013.

The proposed operation is subject to an environmental permit (Ref: EPR/DB3002HE), issued by the

Environment Agency in April 2016. The permit is subject to five (5) preoperational measures (PO1 –

PO5). PO1 relates to well integrity and states:

‘PO1a: Prior to the operation of the regulated facility the Operator shall conduct a well integrity test

on the existing borehole in accordance with section 4.3.1 of the Waste Management Plan.

PO1b: Prior to the operation of the regulated facility the Operator shall submit a written report to the

Environment Agency including the results of the integrity test carried out in accordance with

PO1a which should include, but not limited to any comments provided by the Health & Safety

Executive.’

Section 4.3.1 of the Waste Management Plan states:

‘Prior to the KM8 being suspended following its construction in 2013, the well was pressure tested to

confirm pressure integrity. Once well bore has been surveyed, the well will be pressure tested to

reconfirm pressure integrity.’

In order to comply with PO1a, Third Energy carried out an integrity test on the KM8 well on 25th April

2017, the results of which are provided as Appendix 1.

The purpose of this document is to report the outcome of the integrity test, together with

communications between Third Energy and the Health and Safety Executive (“HSE”).

This document is being submitted to the Environment Agency in order to comply with PO1b.

2. KM8 WELL INTEGRITY TEST

A well integrity test was carried out on the KM8 well by Moorhouse Drilling & Completions (MDC) on

25th April 2017, following a previously agreed method statement. The equipment used to record the

pressure test was in calibration and supporting certification inspected.

The well integrity test consisted of a 5,000psi pressure test, replicating the test carried out

immediately following its construction in 2013.

The pressure test was successful, thus demonstrating well integrity. A copy of the MDC KM8 Well

Pressure Test Post Operations Report is provided as Appendix 1, which contains a copy of the well test

chart and calibration certification.

A schematic detailing the construction of the KM8 well is provided as Appendix 2.



3. HEALTH AND SAFETY EXECUTIVE

A copy of the MDC KM8 Well Pressure Test Post Operations Report was submitted to the HSE for

comment. A copy of the communication between Third Energy and the HSE is provided as Appendix

3. The correspondence confirms that the HSE has no safeguarding concerns as to the information

provided by Third Energy, in the context of the KM8 pressure test carried out to confirm the integrity

of the KM8 well.

4. CONCLUSION

In accordance with PO1a and PO1b of the environmental permit, Third Energy has carried out a well

integrity test on the KM8 well and has documented it results, together with comments received from

the HSE within this document.

The integrity test was successful and reconfirms the integrity test carried prior to the KM8 being

suspended following its construction in 2013.

This document is being submitted to the Environment Agency in order to discharge PO1a and PO1b.



APPENDIX 1 – MDC KM8 PRESSURE TEST POST OPERATIONS REPORT

Moorhouse Petroleum Limited Moor House

Bessingby Way Bessingby Industrial Estate

Bridlington East Yorkshire

YO16 4SJ

Tel: (01262) 608731 Fax: (01262) 608390

KM8 Well Pressure Test

Post Operations Report

Document Ref:

TE-KM8-WPTPOR-R0

8th May 2017

FO-107

REVISION RECORD

Version Date Description

Rev 0 8th May 2017 Issued

COPYRIGHT

© 2017 Moorhouse Drilling and Completions. All Rights Reserved.

The contents of this document may not be reproduced or copied without the express written

permission of Moorhouse Drilling and Completions.

FO-107

Summary Prior to operations taking place the casing design was checked and safety factors calculated for the pressure test – all calculations were accepted. The method statement for the operation was followed. A successful pressure test to 5,000 psi for 30 minutes was performed on the 9-5/8” casing, 7” liner and wellhead on the KM8 well via the wellhead annulus valve meeting the test acceptance criteria of less than 1% variation. The test was witnessed and accepted by the Senior Drilling Engineer of Third Energy.

FO-107

Chart Recorder Test Chart

Start of staged pressuring of the well

End of staged pressuring of the well

Start of 30 min pressure test

End of 30 min pressure test

FO-107

Chart Recorder Calibration Certificate

FO-107

Datalogging Gauge Chart

FO-107

Datalogging Gauge Calibration Certificate

FO-107



APPENDIX 2 – KM8 WELL SCHEMATIC

Casing(in)

Grade TOC(ft)

Remarks

DateCompleted 3rdOctober2013 36¼" - surfaceLicence PL080 26" - surfaceCo-Ordinates 479003.6mN 18⅝" K55 surface

477135.8ME 13⅜" N80 surfaceGLtoRT 25.5ft 9⅝" L80 3034 TheoreticalGLtobasecellar 10.45ft 7" L80 6157

3-1/16"5KManualValvewPressureGaugeClaxton13-5/8"5MDrill-ThruWellhead 3"BPVinstalled

26"Conductor170ft35"holeto174ft

16joints3-1/2"9.2lb/ftNewVamTubing

18-5/8"87.5lb/ft,K55,Range3,BTC24"holeto1,062ft 18-5/8"CasingShoe1,046ft

SuspensionFluid9.2ppgBrine

TOC3034ft(Calculated)

13-3/8"68lb/ft,N80,BTC17-1/2"hole4,149ft 13-3/8"CasingShoe4,134ftMD

TOL5,816ft

TOC6,157ft9-5/8"47lb/ft,L80,VamTop

12-1/4"hole6,175ft 9-5/8"CasingShoe6,160ft

DeepestTaginsideliner10069ftTopLandingJoint10073ft

8-1/2"hole10,204ftMD 7"LinerShoe10,198ft7"29lb/ft,L80,VamTopHT

10198

68

KM-8

102048½"4729

413441496175

35"24"17½"12¼" 6160

KirbyMisperton8WellCurrentStatus

Weight(ppf)--

87.5

WellData Size(in)

Depth(ft)

Depth(ft)

1046170.567.5

17467.5

1062.0

42"

00

0



APPENDIX 3 – HSE CORRESPONDENCE

1

Jonathan Foster

From: @hse.gov.ukSent: 12 May 2017 14:49To:Cc: @hse.gov.uk; @hse.gov.uk; @hse.gov.uk;

@hse.gov.uk;Subject: RE: KM8 Pressure test - EA Permit Discharge

Good afternoon ,

Thank you for your email. Based on the information presented to me, (KM8 Pressure Test Report -Third Energy ref.TE-KM8-WPTPOR-R0) and the email from yourself (dated the 12 of May 2017) I can say that I have no safeguardingconcerns.

Kind Regards| HM Inspector of Well Engineering & Operations | Energy Division - Offshore

Health & Safety Executive | HID Energy Division, ED 6, Lord Cullen House, Fraser Place, Aberdeen, AB25 3UB |

From:Sent: 12 May 2017 11:22To:Cc:Subject: RE: KM8 Pressure test - EA Permit Discharge

Hi Thanks for your email and comments.

I have answered your comments below but please contact me if further clarification is required.1. The pressure test was made against the BPV in the hanger, hanger seals casing and wellhead body.

a. The 3-1/2” x 9-5/8” annulus valves were body tested and used to monitor pressure , the rationalbeing the annulus valves will be open during the frac operation.

b. The 13-3/8” x 9-5/8” annulus valve was open to monitor for flow during the test.c. Swab valve is tested as part of the well maintenance programme.

2. The permit requirement is ‘to conduct the integrity test of the existing borehole prior to operations’. Wetherefore tested the well in its current configuration to 5,000 psi which is in line with pressure testsalready conducted on the well and allowable within the existing casing design factors. Once the 4-1/2”casing is installed during the workover a further integrity test will be made in line with the pressuresexpected during the hydraulic stimulation.

3. Our understanding of the WLCIG is a Leak Tight acceptance criteria is determined by the well operator.The acceptance criteria applied to this test was based on our company standard which follows API 6Aand 14B, in the case of API 6A we decreased the acceptance level from 5% to 1% to make this test morestringent. The calculated loss rate was 363cm3/min, below 400cm3/minute defined in API 14B .

I would just like to add the request for the test was not based on any engineering standards or requirements andwas only to discharge a pre-operational condition imposed by the EA in the permit approval.

2

Regards

Senior Drilling Engineer

From:Sent: 11 May 2017 11:10To:Cc:Subject: KM8 Pressure test - EA Permit Discharge

Good morning ,

With reference to the above pressure test report I have reviewed the documents provided by Third Energy and Ineed response to the following clarification before I make my comments:

1. I understand from Table S.1.3 in your email that EA requested a well integrity test. In addition, in thesummary of the report it indicates that the pressure test was performed on the 9 5/8” casing. 7” liner andthe wellhead. However, the documents you supplied do not show that a full well integrity test wasperformed and it does not tell whether the side outlet valves of the casing spool were test. Therefore, I cancomment on the pressure test of the casing only. Please clarify what elements of the wellhead barriers weretested.

2. Please clarify the rationale of testing the well to 5000psi and how it compares with the maximum pressureexpected in the forthcoming well operations.

3. In the report it states that the test met the acceptance criteria of less than 1% variation. Please refer to theOil and Gas Well Integrity Guidelines (Issue 3, 2016) for pressure tests.

Kind Regards| HM Inspector of Well Engineering & Operations | Energy Division - Offshore

Health & Safety Executive | HID Energy Division, ED 6, Lord Cullen House, Fraser Place, Aberdeen, AB25 3UB |

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3

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KIRBY MISPERTON A WELLSITE KM8 PRODUCTION WELL HYDRAULIC FRACTURE STIMULATION WELL ... · 2017. 9....

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