Successful First Implementation of MPD Technology Offshore Australia: Regulatory, Technical and Operational Lessons Learned

2021 ◽  
Author(s):  
David Edge ◽  
Michael Pope ◽  
Konstantin Puskarskij ◽  
Helio Santos ◽  
Henry Pinkstone ◽  
...  
Keyword(s):  
Operations Management ◽  
Closed Loop ◽  
Lessons Learned ◽  
Practical Training ◽  
Concept Design ◽  
Drilling Mud ◽  
System Integrity ◽  
Formal Safety Assessment ◽  
Safety Case ◽  
Four Levels

Abstract This paper details the successful first implementation of closed-loop Managed Pressure Drilling (MPD) technology offshore Australia, on a 6th generation semi-submersible rig. The paper covers the process of achieving safety case acceptance to implement MPD technology from the National Offshore Petroleum Safety and Environmental Management Authority (NOPSEMA), the government regulatory authority. The paper describes the project concept design phase, including a Drill Well on Simulator (DWOS) exercise, which was completed to confirm MPD techniques would mitigate problems experienced on conventionally drilled offset wells. The MPD risk assessments completed included HAZID / BOWTIE / HAZOP / FEA studies which were included in the safety case formal safety assessment that was submitted to NOPSEMA. In parallel the Well Operations Management Plan was submitted, detailing the planned MPD methodology. The detailed Well Engineering scope including the MPD Programme, Operational and Contingency Procedures and Commissioning Process was developed to form a Joint Operations Manual. Four levels of project specific MPD training were developed, reviewed, accepted and monitored by NOPSEMA, including classroom based and rig site practical training. Post MPD system installation in Singapore, the System Integrity Testing was successfully completed offshore Australia. Lastly the paper details MPD operations on the first well including the effective use of MPD well control, dynamic MPD FIT, LOT and Pore Pressure testing and establishing the high formation temperature effects on drilling mud density. The closed-loop MPD system allowed the riser deployed sections to be drilled using a statically underbalanced mud system and confirmed the improved capability and flexibility in terms of detection and controllability during mud loss events.

A Review on some Significant Methods in Operations Management

2013 ◽  
Vol 278-280 ◽  
pp. 2137-2142 ◽  
Author(s):  
Yao Li Zhang ◽  
Guang Ying Xie ◽  
Jing Chen
Keyword(s):  
Quality Assurance ◽  
Operations Management ◽  
Six Sigma ◽  
Manufacturing Process ◽  
Manufacturing System ◽  
Closed Loop ◽  
System Quality ◽  
Process Manufacturing ◽  
Four Levels ◽  
Six Sigma Management

Reviewed seventeen operations management methods, namely JIT, Kanban Management, LP, AMS, FMS, CE, MRP, Closed Loop MRP, MRPⅡ, ERP, SCM, BPR, ISO9000, Six Sigma Management, TQM, OPT, TOC, and classified them into four levels: Manufacturing process, manufacturing system, quality assurance and operation philosophy. Development tendencies of operations management are also analyzed from the four levels respectively.

Interpreting Open- and Closed-Loop Transfer Relations Between Cardiorespiratory Parameters: Lessons Learned from a Computer Model of Beat-to-Beat Cardiovascular Regulation

1997 ◽  
Vol 36 (04/05) ◽  
pp. 237-240
Author(s):  
P. Hammer ◽  
D. Litvack ◽  
J. P. Saul
Keyword(s):  
Computer Model ◽  
Closed Loop ◽  
Computer Models ◽  
Cardiovascular Regulation ◽  
Cardiovascular Control ◽  
Lessons Learned ◽  
Multiple Systems ◽  
Response Characteristics ◽  
Similarities And Differences

Abstract:A computer model of cardiovascular control has been developed based on the response characteristics of cardiovascular control components derived from experiments in animals and humans. Results from the model were compared to those obtained experimentally in humans, and the similarities and differences were used to identify both the strengths and inadequacies of the concepts used to form the model. Findings were confirmatory of some concepts but contrary to some which are firmly held in the literature, indicating that understanding the complexity of cardiovascular control probably requires a combination of experiments and computer models which integrate multiple systems and allow for determination of sufficiency and necessity.

scholarly journals The 4-Level Approach: Prevention of Suicidal Behaviour Through Community-Based Intervention

2021 ◽  
Vol 12 ◽  
Author(s):  
Ulrich Hegerl ◽  
Ines Heinz ◽  
Ainslie O'Connor ◽  
Hannah Reich
Keyword(s):  
Public Health ◽  
Primary Care ◽  
High Risk ◽  
Suicidal Behaviour ◽  
Lessons Learned ◽  
Community Based Interventions ◽  
Community Based ◽  
Four Levels ◽  
The Many ◽  
Different Levels

Due to the many different factors contributing to diagnostic and therapeutic deficits concerning depression and the risk of suicidal behaviour, community-based interventions combining different measures are considered the most efficient way to address these important areas of public health. The network of the European Alliance Against Depression has implemented in more than 120 regions within and outside of Europe community-based 4-level-interventions that combine activities at four levels: (i) primary care, (ii) general public, (iii) community facilitators and gatekeepers (e.g., police, journalists, caregivers, pharmacists, and teachers), and (iv) patients, individuals at high risk and their relatives. This review will discuss lessons learned from these broad implementation activities. These include targeting depression and suicidal behaviour within one approach; being simultaneously active on the four different levels; promoting bottom-up initiatives; and avoiding any cooperation with the pharmaceutical industry for reasons of credibility.

Asset Integrity Management - Implementation Plan During Front End Loading Phases

2021 ◽  
Author(s):  
Giorgio Ferrario ◽  
Salvatore Grimaldi
Keyword(s):  
Asset Management ◽  
Operations Management ◽  
Joint Venture ◽  
Lessons Learned ◽  
Predictive Maintenance ◽  
Digital Implementation ◽  
Front End ◽  
Integrity Management ◽  
Advanced Analytics ◽  
Set Up

Abstract Capitalization of lessons learned on Asset Integrity Management during Front End Loading phases of a green field Project Development, by defining plan for implementation of a diagnostic digital tool for reducing downtime and introduce predictive maintenance during Operation. Eni developed a platform of Digital applications for enhanced Operations management by implementing an Integrated Asset Management (IAM) system. Advanced Analytics tool is part of it and is designed for monitoring, foreseeing and preventing production upsets and anomalies; the tool is set up by verification of areas of interest and criticalities, with identification of main equipment data sets and by the implementation and validation of predictive models. Starting from historical data, data scientists supported by experts develop algorithms capable of finding interdependencies between a set of input variables and an output variable (phenomenon to be predicted/monitored), thus detecting anomalies and criticalities. Main areas of benefit are envisaged on Production continuity, capable of predicting problems on static and rotating equipment and giving information on the most impacting variables on the incipient problems. The tool will support technicians to help them preventing failures and out-of-specs events which may cause loss of production or asset integrity issues, with the activation of predictive maintenance and the aim to strive a continuous monitoring and improvement of plant operational performances. An Energy Efficiency predictive model will also be set up, capable of forecasting the future energy performances of the asset through the prediction of the Stationary Combustion of Carbon Dioxide (CO2) emission index (t CO2/kbbl) and providing the list of the main influencing equipment and variables. The plan for implementation of the tool from the Early phases of development help the organization on prioritizing the implementation of Digital tools as part of the execution and realization of the Asset to be delivered to the Operational personnel, by easing the transition and avoiding subsequent retrofitting carrying brownfield works and additional costs. The implementation of Advanced Analytics tool has been embedded in a new green field initiative of a Development Project since Front End Loading phases, thus fostering digital implementation and minimizing deployment costs by including those as part of the Investment Proposal presented to Joint Venture Partners and Authorities.

DEEPWATER GAS FIELD PRODUCTION FROM SUBSEA WELLS INTO COMPRESSED NATURAL GAS CARRIERS THROUGH A HYBRID RISER TOWER

2005 ◽  
Vol 45 (1) ◽  
pp. 45
Author(s):  
J-F. Saint-Marcoux ◽  
C. White ◽  
G.O. Hovde
Keyword(s):  
Natural Gas ◽  
Eddy Currents ◽  
Gas Production ◽  
Lessons Learned ◽  
Concept Design ◽  
Vertical Load ◽  
Gas Field ◽  
Compressed Natural Gas ◽  
Field Development ◽  
Field Production

This paper addresses the feasibility of developing an ultra-deepwater gas field by producing directly from subsea wells into Compressed Natural Gas (CNG) Carrier ships. Production interruptions will be avoided as two Gas Production Storage Shuttle (GPSS) vessels storing CNG switch out roles between producing/storing via one of two Submerged Turret Production (STP) buoys and transport CNG to a remote offloading buoy. This paper considers the challenges associated with a CNG solution for an ultra-deepwater field development and the specific issues related to the risers. A Hybrid Riser Tower (HRT) concept design incorporating the lessons learned from the Girassol experience allows minimisation of the vertical load on the STP buoys. The production switchover system from one GPSS to the other is located at the top of the HRT. High-pressure flexible flowlines with buoyancy connect the flow path at the top of HRT to both STP buoys. System fabrication and installation issues, as well as specific met ocean conditions of the GOM, such as eddy currents, have been addressed. The HRT concept can be also used for tiebacks to floating LNG plants.

FIGHTING FRACTURED FLAMINGO—LESSONS FROM RAMBLER-I, TIMOR SEA

1995 ◽  
Vol 35 (1) ◽  
pp. 655
Author(s):  
D. C. Lowry
Keyword(s):  
Lessons Learned ◽  
Open Fractures ◽  
Thick Section ◽  
Well Bore ◽  
Drilling Mud ◽  
Lost Circulation ◽  
Evaluation Strategies ◽  
Timor Sea ◽  
The Right ◽  
Exploration Well

Exploration well Rambler-1, located in the Timor Sea, presented an unusual set of engineering and evaluation problems when drilling a thick section of Flamingo Group (Jurassic–Cretaceous). The well encountered normally pressured open fractures where drilling mud was lost, and at least two mildly overpressured fractures that flowed small quantities of gassy oil into the well-bore. In these circumstances it was difficult to find the right combination of casing, mud density, cement plugs and lost circulation material to drill the well in a controlled and efficient manner.Fine grained sandstone in the Flamingo Group gave moderate mud log shows and two cased-hole RFTs recovered oil. However, cased-hole DSTs of the same intervals recovered only small volumes of filtrate. This remarkable behaviour is attributed to the RFTs recovering oil from porous cement that had been impregnated with oil from the lower of the overpressured fractures.Any future wells drilled near the axis of the Sahul Syncline are likely to encounter similar problems and awareness of the lessons learned in Rambler–1 can improve drilling and evaluation strategies.

scholarly journals From Research to Practice: Ten Lessons in Delivering Digital Mental Health Services

2019 ◽  
Vol 8 (8) ◽  
pp. 1239 ◽  
Author(s):  
Nickolai Titov ◽  
Heather D. Hadjistavropoulos ◽  
Olav Nielssen ◽  
David C. Mohr ◽  
Gerhard Andersson ◽  
...  
Keyword(s):  
Mental Health ◽  
Mental Health Services ◽  
Health Services ◽  
Psychological Treatment ◽  
Large Body ◽  
Routine Care ◽  
Outcome Data ◽  
Lessons Learned ◽  
Funding Policy ◽  
Four Levels

There is a large body of research showing that psychological treatment can be effectively delivered via the internet, and Digital Mental Health Services (DMHS) are now delivering those interventions in routine care. However, not all attempts to translate these research outcomes into routine care have been successful. This paper draws on the experience of successful DMHS in Australia and Canada to describe ten lessons learned while establishing and delivering internet-delivered cognitive behavioural therapy (ICBT) and other mental health services as part of routine care. These lessons include learnings at four levels of analysis, including lessons learned working with (1) consumers, (2) therapists, (3) when operating DMHS, and (4) working within healthcare systems. Key themes include recognising that DMHS should provide not only treatment but also information and assessment services, that DMHS require robust systems for training and supervising therapists, that specialist skills are required to operate DMHS, and that the outcome data from DMHS can inform future mental health policy. We also confirm that operating such clinics is particularly challenging in the evolving funding, policy, and regulatory context, as well as increasing expectations from consumers about DMHS. Notwithstanding the difficulties of delivering DMHS, we conclude that the benefits of such services for the broader community significantly outweigh the challenges.

Formal Safety Assessment and Goal Based Regulations at IMO: Lessons Learned (Invited Lecture)

2005 ◽  
Author(s):  
Rolf Skjong
Keyword(s):  
Risk Assessment ◽  
Environmental Protection ◽  
Trade Unions ◽  
Safety Assessment ◽  
International Association ◽  
Lessons Learned ◽  
Maritime Industry ◽  
Governmental Organizations ◽  
Non Governmental Organizations ◽  
Formal Safety Assessment

In the maritime industry the International Maritime Organization (IMO) is the UN organization responsible for developing international safety and environmental protection regulations. IMO has now developed the second version of ‘Guidelines for Formal Safety Assessment (FSA) for use in the IMO rule making process’. The Guidelines are available as circulars both from the Marine Safety Committee (MSC) and the Marine Environmental Protection Committee (MEPC). This standard is, as far as the author knows, the first risk assessment standard adopted in an UN organization. The work with developing this standard was initiated in 1995 at IMO based on an UK initiative. As there have been some attempts to develop internationally accepted risk assessment and risk management standards also in other industries, this paper tries to describe some of the experience and lessons learned from developing and implementing FSA at IMO. Paralleling the development of the guidelines there has been a number of applications of the guidelines, recently focusing on bulk carrier safety. Relevant studies have been carried out by UK, by Japan, by Norway and International Confederation of Free Trade Unions (ICFTU), and by the International Association of Classification Societies (IACS). These studies will be briefly reviewed with respect to methods used, assumptions made and conclusions drawn. The entire process from the initial terms of reference formulated by IMO to the final decisions is considered. The main conclusion is that the maritime industry has made a lot of progress, quite fast, in the use of risk assessment as part of the decision making process. This being the case, despite the many communication problems that arises in discussing risk issues in international forums. Furthermore, the FSA has helped balancing the often conflicting interest of the flag states and non-governmental organizations present in IMO. In 2004, a new initiative was taken on developing Goal Based Standards at IMO. This initiative was taken by Greece and Bahamas, and has now been debated at three meetings of MSC. The paper will also discuss the relationship between GBS and FSA based on the experience gained.

Sign in / Sign up

Export Citation Format

Share Document