The Management of Drilling-Engineering and Well-Services Software as Safety-Critical Systems

Abstract

Routinely, specialist software is used to perform tasks such as casing design and directional collision-avoidance scans. If undetected, a serious failure in the development or use of any one of these products could result in loss of life or catastrophic environmental damage. Such an event would jeopardize the oil company's licence to operate (Thorogood 1994) and would seriously damage the software vendor's credibility.The drilling-and well-services software industry has matured over the last 5 years. During this period we have witnessed many commercial and technical changes, including further consolidation of the oil majors, the meteoric growth of Web-based tools, and the increased complexity of the software and types of wells being drilled. Commercial pressures also mean fewer resources are available to perform these tasks. Unless managed, it is clear these changes greatly increase the risk of a serious incident.BP and Landmark have conducted a series of joint audits to gain a detailed understanding of both the operator's and software vendor's working practices in relation to this software. The paper contains a description of the conclusions and actions arising from the audits. Desired improvements in testing, core competencies, and independent verification were identified. Details of the audit process are included to enable other parties to conduct similar audits for themselves. The risks and potential loss imply that critical applications should be managed formally as "safety-critical systems." It is also concluded that close collaboration between operators and software vendors is needed for the management process to be effective.

Automatic interpretation of structural plane parameters in borehole camera images from drilling engineering using MOORA method

“…[8] Drilling and well-served users Current engineering in their applications Reflecting the practice, their personal On the latest version of the computer's operating system And that exudes authenticity are expecting equipment. [9] The nature of a subsea development is pipeline, Other of Operations and Facilities Engineering Covers fields implicitly. These impose mandatory requirements to be considered in well drilling engineering.…”

“…Easy to use methods for preparing the best rankings for choosing sales locations. [9] Integration method MOORA and Taguchi methods are addressed For the first time in this paper to determine the optimal factor size. [10] The MOORA system is Scholarship to improve academic achievement Decision support for selecting recipients system.…”

Drilling-and-Completions-Applications Portfolio Management—Changes and Trends

“…On this occasion, the code was obtained from individuals who had worked on it earlier, rather than from a formal company archive. Old code also may find other uses, such as for training (Sawaryn 2012).…”

Influence of friction on buckling of a drill string in the circular channel of a bore hole

“…However, as a rule, drilling of such bore holes is attended by extraordinary phenomena bringing emergency situations. One of them is unstable bending buckling of a drill string (DS) in the channel of a curvilinear bore hole (Brett et al 1989;Dawson and Paslay 1984;Kyllingstad 1995;Sawaryn et al 2006;Gulyayev et al 2009;Gao and Liu 2013;Huang and Gao 2014;Gao and Huang 2015). This effect is associated with deterioration of conditions of contact interaction between the DS and the bore hole wall, enlargement of friction forces, impossibility of transferring the required axial force to the bit, and the DS lockup situation.…”