Using MPD Well Design Process to Optimize Design and Delivery of a Deepwater Exploration Well

2020 ◽  
Author(s):  
Sharief Moghazy ◽  
Wilmer Gaviria ◽  
Roger Van Noort ◽  
Anton Kozlov ◽  
Romar Alexandra Gonzalez Luis ◽  
...  
Keyword(s):  
Design Process ◽  
Well Design ◽  
Optimize Design ◽  
Exploration Well

MPD Well-Design Process Optimizes Design, Delivery of Deepwater Well

2021 ◽  
Vol 73 (02) ◽  
pp. 49-50
Author(s):  
Judy Feder
Keyword(s):  
Pore Pressure ◽  
Design Process ◽  
Pressure Profile ◽  
Base Case ◽  
Well Design ◽  
Managed Pressure Drilling ◽  
Drilling Operations ◽  
Integrity Tests ◽  
Fracture Gradient ◽  
Exploration Well

This article, written by JPT Technology Editor Judy Feder, contains highlights of paper SPE 200504, “Using MPD Well-Design Process To Optimize Design and Delivery of a Deepwater Exploration Well,” by Sharief Moghazy, SPE, Wilmer Gaviria, SPE, and Roger Van Noort, SPE, Shell, et al., prepared for the 2020 SPE/IADC Managed Pressure Drilling and Underbalanced Operations Conference and Exhibition, originally scheduled to be held in Denver, Colorado, 21-22 April. The paper has not been peer reviewed. The complete paper presents a case for using managed pressure drilling (MPD), and the full capabilities of its associated well-design process, to optimize all aspects of the well-delivery process in deep water, including design, safety, and subsurface data acquisition. The process was used to design and drill a deepwater exploration well with an expected pressure ramp and narrow drilling margins while acquiring valuable subsurface data. Introduction The operator’s only offset well in the area faced many challenges including a pressure ramp, resulting in narrow drilling margins. The team experienced several margin-related issues, such as kicks and losses, that resulted in permanent abandonment of the well without reaching the objectives. Given those results, and the subsurface uncertainty, the operator determined that the use of MPD would have mitigated many of the risks and non-productive-time events experienced in that well. The drilling contractor procured a rig fitted with an MPD system to drill a new exploratory well. MPD and the MPD well-design process were employed to increase the likelihood of drilling the well to total depth (TD) safely and successfully by providing the capability to accomplish the following: Account for pore pressure/fracture gradient (PPFG) uncertainty and navigate the expected pressure ramp and narrow margin sections safely by holding a constant bottomhole pressure and adjusting as needed during drilling operations Optimize the location of the casing/liner shoes by identifying the pressure profile based on real-time pore pressure data to potentially eliminate casing/liners, streamline the well design, and retain contingency strings in the event of a more-aggressive pore-pressure ramp Enable early kick and loss-detection capabilities and dynamic influx management to identify, react, and address downhole issues more quickly Use dynamic formation integrity tests (DFIT), dynamic leakoff tests, and dynamic pore-pressure tests (DPPT) to identify the extremes of the drilling margin, derisk subsurface uncertainty, and make decisions while drilling The process used hydraulics modeling to assess the feasibility of several potential scenarios and to understand the deepest possible casing points for a particular PPFG case, mud weight (MW), and well-design scheme. After a base-case well design was created, the maximum allowable kick tolerance was determined using an influx management envelope (IME) analysis, which was used as an input for an MPD operations matrix to be used during the operational phase. During the drilling of the well, the use of the MPD system and the calibration of the hydraulics model to the actual subsurface information allowed the team to continue drilling through more-benign conditions and optimize the well-design configuration.

A Successful Service Innovation Model for Shortening the Design Process

2013 ◽  
Vol 834-836 ◽  
pp. 1678-1681
Author(s):  
Shoujen Bien ◽  
Min Wei Hsu ◽  
Janson Tsai ◽  
Tsaiyun Lo
Keyword(s):  
Content Analysis ◽  
Focus Group ◽  
Key Words ◽  
Design Process ◽  
Service Innovation ◽  
Corporate Identity ◽  
Creative Industries ◽  
Well Design ◽  
Innovation Model ◽  
Identity System

A brand company always comes a well-design corporate identity system (CIS) which preserve its management qualities with outcome products, packages, details, related people behaviors, all interaction etc. At present, Taiwans cultural creative industries play a very important role in constructing the soft collective infrastructure. This project try to prove the tailor-made model which a well design package system concerned new CIS will enhance good impression to wide consumers especially for small food and bakery industries. Research methods are selected both focus group and content analysis qualitatively gather experts opinions, quantitatively coding the key words. To accumulate form images related knowledge. The result can be applied to some Taiwan small business on Shorten design process for developing their products and commercial packages.

Well Design for Subsea Exploration Drilling in Shallow Formations of Barents Sea

2021 ◽  
Author(s):  
Mikolaj Stanislawek
Keyword(s):  
Design Process ◽  
Barents Sea ◽  
Weather Conditions ◽  
Design Approach ◽  
Drilling Process ◽  
Well Control ◽  
Pilot Hole ◽  
Planning Phase ◽  
Well Design ◽  
Exploration Drilling

Abstract Subsea exploration drilling in relatively new and not yet fully recognized frontiers like Barents Sea continues to be a focus for Oil & Gas Companies. Safety and robust well barriers are important as ever. This paper describes well design process and execution of a challenging subsea exploration well in shallow formations of Barents Sea by Equinor. Case study for planning and well design process is presented, followed by drilling experiences during execution. Several well design concepts and contingency scenarios that were evaluated and risk assessed in the planning phase are presented, which required extra focus on well design and well barriers. Compensating measures along with high focus on well control and well barriers in shallow drilling environment of Barents Sea were developed during planning phase of this well, and reviewed with planning and execution teams. Design approach encompasses casing design in shallow reservoir well with narrow margin between required formation integrity and fracture pressures, low kick tolerance, drilling in unstable formations, low temperature and pressures. Robust well design in shallow and weak formations is feasible with conventional casing design approach, and well challenges can be overcome by proper planning and contingency measures involving additional preparation of drilling crew, and by use of advanced drilling technology and procedures. Safety and well control is the most important factor in well design. Relevant contingency scenarios should be prepared with equipment and procedures in place. Importance of drilling a pilot hole in unrecognized area near main well and its influence on main well design is crucial. This is a good example of planning and drilling process for challenging well in unrecognized area with limited reference well data, challenging logistics, and weather conditions of Barents Sea. It will demonstrate how many contingency scenarios were fully prepared in planning phase and their rationale, versus encountered drilling experiences, to be a more precise reference for future wells in the area.

Top-Hole Technology Overcomes Challenging Sand-Based Seabed Conditions and Enables Record Drilling Performance in an Offshore Exploration Well

2021 ◽  
Author(s):  
Camilo Cardenas ◽  
Hans Erik Hansen ◽  
Sigvald Hanssen ◽  
Harald Blikra ◽  
Wolfgang Mathis ◽  
...  
Keyword(s):  
Positive Impact ◽  
Health And Safety ◽  
High Strength ◽  
Cost Comparison ◽  
Environmental Footprint ◽  
Dense Sand ◽  
The North ◽  
Drilling Performance ◽  
Well Design ◽  
Exploration Well

Abstract Top hole construction is a critical part of any well design, especially for subsea wells. It is considered to be the foundation for the well, and it is crucial for ensuring well integrity. Uncertainties and conditions of the seabed and top layers could compromise the stability of the chosen solution. This paper describes the first implementation of the conductor anchor node (CAN®) technology in sand-based conditions and demonstrates its positive impact on the drilling performance for an offshore exploration well in the North Sea. The main challenges identified in the top-hole design for this well were the presence of boulders down to 65 m below the seabed, and hard soil that consisted mainly of very dense sand and high strength sandy-clay layers. Different solutions were evaluated using a risk-based approach, looking to optimize operational performance and decrease the environmental footprint. A technology which consists of a pre-installed short conductor within a CAN was chosen. This solution enabled the operator to establish a competent well foundation above the boulder interval and increase operational efficiency by reducing the critical rig time. However, the CAN technology had not been deployed in this type of soil previously. Thus, the feasibility of its installation became one of the main milestones of the project. This was made possible due to a set of contingencies and modifications that were the result of a strategic collaboration among the parties involved. The CAN was successfully installed by a crane vessel before the rig arrived at location, and the set of contingencies and modifications mentioned in this paper were decisive to ensure it reached the required penetration depth. Furthermore, this paper demonstrates that the CAN technology was crucial for the project to achieve top performance results and become one of the fastest exploration wells drilled in the Norwegian basin. This solution reduced uncertainties related to the conductor cementing, load and fatigue capacities, and deep surface casing cement. Improvement in the drilling performance is determined by estimating the decrease in drilling time, materials and consumables. Those results are then used to perform a cost comparison which demonstrates that the CAN technology reduced the top-hole construction cost significantly on this offshore well. In addition, the reduction in the well environmental footprint is quantified, and its contributions to the projects health and safety goals are highlighted.

Real-Time Casing-Design Optimization:A Case Study in the Use of Managed-Pressure Drilling To Develop an Adaptive Well Design and Eliminate Casing Strings on a Deepwater Exploration Well

2014 ◽  
Vol 29 (04) ◽  
pp. 386-404
Author(s):  
Catherine Sugden ◽  
William Bacon ◽  
Oscar Roberto Gabaldon ◽  
Jose Umberto Arnaud Borges ◽  
Cristiane Maravilha Soares ◽  
...  
Keyword(s):  
Real Time ◽  
Well Design ◽  
Managed Pressure Drilling ◽  
Exploration Well

Some lessons learnt from drilling a shale gas well in Western Australia

2014 ◽  
Vol 54 (1) ◽  
pp. 15
Author(s):  
Vamegh Rasouli
Keyword(s):  
Mechanical Properties ◽  
Shale Gas ◽  
Gas Flow ◽  
Joint Venture ◽  
Gas Well ◽  
Eastern Area ◽  
Well Design ◽  
Surface Location ◽  
Coal Measures ◽  
Exploration Well

The Arrowsmith–2 well is the first dedicated shale gas well in WA. The well is situated in the central eastern area of Permit EP413, with the surface location being about 30 km north of the township of Eneabba. Norwest, as the operator and on behalf of its joint venture partners, drilled the Arrowsmith–2 exploration well in mid-2011. In 2012 the well was subsequently perforated and fracture stimulated in five discrete stages across four formations: the High Cliff Sand Stone (HCSS); Irwin River Coal Measures (IRCM); Carynginia Formation; and, Kockatea Shale. The fraccing results have shown excellent rates of gas flow for the size of the intervals fracced, and have produced oil and/or condensate to surface from the two intervals flowed back. This paper discusses some drilling operation and design aspects of Arrowsmith–2. A review of the regional geology, basic well design, and well objectives will be given. The importance of geomechanical studies for minimising wellbore-related problems during drilling and after that for hydraulic fracturing operation will be discussed, and the results of the studies undertaken presented. The wireline logging suite run in this well was used to interpret the formations’ mechanical properties. Also, laboratory tests were performed to estimate hydro-mechanical properties of the formations. The lessons from drilling this well will be used for drilling future wells in the area with the objective of saving time and costs.

Use of Ontological Classes in the Exploration of User Needs

2013 ◽  
Vol 371 ◽  
pp. 847-851 ◽  
Author(s):  
Adrian Oriţǎ ◽  
George Drăghici ◽  
Jean Luc Beney
Keyword(s):  
Design Process ◽  
Quality Function Deployment ◽  
Product Lifecycle Management ◽  
Point Of View ◽  
Innovative Design ◽  
Customer Needs ◽  
Well Design ◽  
New Perspective ◽  
Lifecycle Management

This paper provides a new perspective on the construction and use of ontology in the context of the life cycle of the product. All information related to system-product should be available within the PLM (Product Lifecycle Management) but especially in innovative design phase. Because of the complexity of the information and to increase the effectiveness of the conceptual design the use of ontology is required in a particular domain, the design of machine tools, as a means of representation and classification of knowledge. The ontology is used to define a common vocabulary, explicit, formalized and shared by a community of developers in order to share knowledge and increase the efficiency of the design process. On the other hand, the design process is strongly influenced by the clarity and precision of the analysis of customer needs. To design a product well, design teams needs to know what it is the designing, and what the end-users will expect from it. Quality Function Deployment (QFD) [1] is a systematic approach to design based on a close awareness of customer desires, coupled with the integration of the functional groups. This paper proposes a taxonomy of customer needs in the QFD method and a demonstration from our point of view through an Industrial application.

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