Emerging Rapid Capping Technology To Mitigate...

1 © 2016 Halliburton. All rights reserved.

Andy Cuthbert Global Engineering & Technology Manager

Boots & Coots

Guy Fox Senior Product Manager

Boots & Coots

Emerging Rapid Capping Technology To Mitigate Effects of Catastrophic Subsea

Loss of Well Control


“Prevention is Better than Cure”

vulneratam quaerere remedium”

“Melius [est] in tempore occurrere, quam post causam

Loss of Life

Loss of Asset

Environmental Damage, Cost of Clean up

– sea and land

Cost of support services – dispersant,

rig(s), ROV, FPSO, drilling support

Lost Production Revenue

Fines and Compensation Payments

Reputation in the Court of Public Opinion


Uncontrolled release invariably has

potentially catastrophic consequences.

Emergency

response involves

safety, logistic

and risk factors.

Rapid mobilization of equipment.

Time - the most significant factor in

mitigating hydrocarbon escape to surface.


Sequence of Events

Incident

Incident +2 days: ROV site survey

Incident +3 days: Incident Command in place

Incident +17 days: Containment dome, failed due to hydrate formation

Incident +18 days: Junk shot – failed.

Incident +26 days: Relief well spudded.

Incident +39 days: Attempted top kill fails. Move to Top Hat containment.

Incident +84 days: 3 ram capping stack installed.

Incident +87 days: Well successfully capped.

Incident +107 days: Well successfully killed via relief well.


TIME is of the

essence


To fulfil the requirement to plans as mentioned in the fourth subsection, the NORSOK D-010 standard, Chapters 4.8 should be used, with the following additions:

a) the plans should describe the need for and availability of facility(ies) and services,

b) plans for relief well drilling and capping operations that require modifications of facility(ies),

use of additional equipment, vessels or new technology, should detail how this can be mobilised and operative prior

to start-up of the operation that requires this.

For the U.S. Gulf of Mexico (GOM), it is mandatory for Operators conducting subsea drilling

operations to demonstrate access to a subsea capping stack and the necessary expertise and assets

to mobilize and install the stack offshore.

“Evaluate subsea capping stack components that can accommodate weight savings… using gate valves instead of BOP rams... The gate valves can provide the same pressure

rating as BOP rams…benefits associated with the use of gate valves include improved sealing reliability (metal-metal

sealing surface), reduction in weight, and simplified operation, thereby avoiding the need for Subsea Accumulator

Module (SAM) units.

Because of the geographic distances between subsea capping stack storage locations and potential incident sites, it

is recommended that a specific subsea capping stack should be identified prior to the commencement of

operations… and the associated mobilization planning that is conducted to determine the estimated response time.

This process would allow for the assessment of an estimated response time to ensure that it is acceptable… to identify areas for efficiency improvement related to deployment and installation.” Wood Group Kenny Subsea Capping Stack

Technology Requirements Final Report for BSEE: 100124.01-DG-RPT-0004 | Rev 0 | February 2016

The Australian oil and gas industry is committed to having world-class capability to respond

rapidly and effectively to offshore subsea well control incidents. The… industry’s intervention and response capacity, including a capping stack system, will be called on immediately in the event of an offshore

well control incident. Time to mobilize a global capping stack is anticipated to be 9 - 11 days.


1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

12 day transit at 13.5 knots

No suitable vessels available locally






1.75 day marine transit



CommentTime (Days)

Region SystemPort of

MobType of transport Stage

East

Coast

Canada

Sta

va

ng

er

Airfreight 747

OS

RL

15

k S

tack

Mob at Storage Location

Aircraft Transit to incident Site

Mob at Incident dock

Vessel Transit to Incident Site


Vessel Transit to incident Site





Marine

Airfreight 747

Airfreight AN-124





Airfreight AN-124





Re

qu

ire

d





Ho

ust

on

Re

qu

ire

d

Ho

ust

on

Airfreight 747





Mexican

Gulf OS

RL

15

k S

tack

Sta

va

ng

er

MarineMob at Storage Location


Airfreight 747





Persian

Gulf

OS

RL

10

k S

tack

Sin

ga

po

re

MarineMob at Storage Location


Airfreight 747

Airfreight AN-124





Re

qu

ire

d

Ho

ust

on

Marine




7 aircraft w/ staggered arrival / departure / arrival

3 aircraft w/ staggered arrival /departure / arrival



2 aircraft w / staggered arrival / departure / arrival

2 aircraft w / staggered arrival / departure / arrival




25 (400T) crane vessels available globally

Seven Borealis

Lewek Constellation

Sapura 3000

Seven Polaris

Lewek Champion

HOS Iron Horse

Normand Oceanic

Seven Seas

Seven Waves

Skandi Acergy

Aker Wayfarer

AKOFS Seafarer

Boa Sub C

Ceona Amazon

Construction Support

Vessel 108

Deep Blue

Giant II

Hai Yang Shi You 286

Lewek Connector

Normand Vision

North Sea Atlantic

North Sea Giant

Seven Rio

Skandi Arctic

Lay Vessel North

Ocean 105


CURRENTLY: Heavy, unwieldy ram-based equipment

REQUIRE: Mobility – 40 ton valve-based capping stack

CURRENTLY: Heavy, unwieldy ram-based equipment -weighing

in at 120 tons or more – rapid deployment using readily

available crane capacity, is precluded. Pre-loaded flatbed trucks

require road permits for loads of this weight.

REQUIRE: Mobility – 40 ton capping stack, housed at a

dedicated bonded facility, which means it already has Customs

clearance for shipping. The destination airport CURRENTLY:

Hydraulic ram based system that requires a full subsea

accumulator package, Time taken to rebuild and retest ram-

based capping stack under API RP 53

CURRENTLY: Ram-based system requires a full subsea accumulator package; retest under API RP 53

REQUIRE: Gate valve based system, ROV manipulated, retest under API RP 17W

CURRENTLY: Hydraulic ram based system requires a full subsea accumulator package; time taken to rebuild and retest ram-based capping stack under API RP 53

REQUIRE: Gate valve based system, ROV manipulated, less time to rebuild a modular system and retest under API RP 17W CURRENTLY Air Mobility: +8 x Boeing 747 or +3 x Antonov flights(@ $1mm/flt) REQUIRE: Reduced number of airlifts – maximum two for landing / take off rights and scheduling

CURRENTLY: Limited number of port facilities with loading capability for 250 ton structures REQUIRE: Access to a wider range of ports, especially in remote areas. Crane support for a lighter valve-based device is far less demanding of port facilities.

CURRENTLY: Limited number of port facilities with capacity REQUIRE: Access to a wider range of ports.

GAP Analysis


CURRENTLY: Inherent design restriction with elastomer seals (with a closing time constraint).

REQUIRE: Erosion resistance metal to metal seals vs elastomer sealing element (requires closing time constraint).

CURRENTLY: Elastomer seals (with a closing time constraint). REQUIRE: Erosion resistance metal to metal seals.

CURRENTLY: Restricted vessel of opportunity with crane capacity; Limited number of vessels of opportunity that have 250 ton crane capacity. REQUIRE: Greater access to available vessels by a less demanding crane requirement. Access to software for real time updates of available vessels of opportunity and supplementary equipment as required.

CURRENTLY: Restricted vessel of opportunity. REQUIRE: Greater access to available vessels. CURRENTLY: Weather limits for deploying a 120 ton device overboard REQUIRE: A lighter device that can sustain more extreme sea state conditions, therefore widening the operational weather window.

CURRENTLY: Weather limitations for deployment. REQUIRE: A wider operational weather window. CURRENTLY: No ancillary subsea dispersant support REQUIRED: The means to tie into a subsea manifold for ROV dispersant deployment, as part of the response package.

CURRENTLY: No ancillary subsea dispersant support REQUIRED: Subsea manifold for ROV dispersant deployment.

SPH and CFD support for specific subsea scenarios, metocean conditions and full fluid dynamic interface available for real time capping coordination.

GAP Analysis


Summary – Complete Package

Combination of debris clearance, capping equipment and dispersant deployment:

Truly air Mobile Capping Stack (maximum two aircraft)

BOP Intervention support equipment

Dispersant application support systems

Debris Removal equipment

Containment support equipment

Topside Separation equipment*

Well Kill Equipment

Logistics support


Emerging Rapid Capping Technology To Mitigate Effects of Catastrophic Subsea

Loss of Well Control

Guy Fox Senior Product Manager

Boots & Coots

Andy Cuthbert Global Engineering & Technology Manager

Boots & Coots

https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwjGtamlgtnRAhVHXSwKHbnFBI4QjRwIBw&url=https://www.bsee.gov/newsroom/latest-news/statements-and-releases/press-releases/bsee-participates-in-sems-forum&psig=AFQjCNEClvgFNrB-YScTEBUB_1YKjgO5lA&ust=1485286675990433

Emerging Rapid Capping Technology To Mitigate...

Documents

Transcript of Emerging Rapid Capping Technology To Mitigate...