TOPICS OF INTEREST
Offshore Drillers Attack Costs and Downtime With Data-Driven Deals
New long-term contracts between offshore drillers and equipment makers reduce downtime and risks associated with key components, from blowout preventers to risers.
Retrofitting MPD Systems to Deepwater Rigs Aids Drilling, Efficiency, and Process Safety
The unique properties of deepwater formations pose significant challenges to the capabilities of conventional drilling rigs. Using automated drilling equipment, including MPD, efficiency and cost savings can accompany safety.
How To Develop a Well-Specific Capping-Stack Blowout Contingency Plan
Developing a well-specific subsea-capping contingency plan involves assessing the feasibility of deploying a capping stack from a floating vessel, determining the weight and stability, and performing dynamic-flow simulations of closing the capping stack outlets.
Well Integrity and Well Control
One of the more important aspects of well integrity during drilling operations is early kick detection. Recently, new technologies and re-search have been applied or developed to improve the kick-detection systems and to overcome some of the difficulties.
Mitigating Gas in Riser Rapid Unloading for Deepwater Dual-Gradient Well Control
A study using a dynamic multiphase-flow software simulated a rapid-unloading event and determined the gas fraction in the riser annulus and the effect on riser fluid levels.
Next-Generation Kick Detection During Connections
An influx-detection-at-pumps-stop (IDAPS) software was developed to provide early warning of abnormal flowback conditions during connections.
Methodology and Array Technology for Finding and Describing Leaks in a Well
This paper presents a new technology and methods that can detect leak locations in a well and illustrate the flow profile of the leak.
Blowout Prevention and Relief-Well Planning for the Wheatstone Big-Bore Gas-Well Project
The engineering and operational planning to ensure that no uncontrolled hydrocarbon releases occur during the execution of subsea big-bore gas wells are described.
BOPs Become the Focus of Data-Driven Scrutiny
Well control is built around huge steel machines, but the future of the business is digital. Data have become a critical asset as operators and service companies work to increase the safety and reliability of their products and operations.
Rethinking the Blowout Preventer
A new blowout preventer design shows potential for delivering much greater shearing power than current BOPs. The design is simpler and more efficient than current BOPs.
Solving the Casing-Wear Puzzle Using Stiff-String Model
Precise casing-wear prediction is important for improving well integrity and longevity, while simultaneously making casing designs more cost-effective. There are no industry guidelines for casing-wear prediction. This article presents a validated predictive model.
Advancing Deepwater Kick Detection
This paper describes experiences, challenges, and approaches to solving the problems related to creating an advanced early kick-detection system suitable for floating mobile offshore drilling units.
New Approach Tests Cement-Sheath Integrity During Thermal Cycling
Operators in the North Sea have been concerned about the ability of the cement sheath to maintain sealing integrity because of the increasing number of reported failures in mature wells. This paper presents results from a new laboratory setup to visualize the source of issues.
The tragic blowout of Macondo has triggered many technical and managerial developments in the field of well integrity.
Method of Surface Interception To Access Annulus With Abnormal Gas Pressure
The North field offshore Qatar was observed to have a chance of inner annuli becoming charged with shallow-gas pressure with possible communication to other annuli, which was thought to be a well integrity concern.
Smart Kick Detection—First Step on the Well-Control-Automation Journey
On the basis of safety performance results achieved through automation downstream, an operator set out to achieve the same advances in its upstream business.
Analytical Model Estimates Flow Rate and Total Discharge in Gas-Well Blowouts
Despite multitier safeguards, blowouts occur. When such accidents happen, rate estimation is an important and daunting task.
Flow Sensor Technology Seeks to Replace the Coriolis Meter
Australian technology developer MezurX is touting its newly introduced flow, density, and mud monitoring system as a significantly better alternative to the widely used Coriolis meter.
Flexible, Single-Skin Completion Concept Meets Well Integrity, Zonal Isolation Needs
As deeper and more complex well designs proliferate throughout oil and gas fields, well completion methods are challenged and new technologies are emerging to ensure safe, cost-efficient, and optimized completions.
17 May 2017