THE APPLICATION OF CRITICAL PATH SCHEDULING TO ONSHORE DRILLING RIG MOVES

1978 ◽  
Vol 18 (1) ◽  
pp. 167
Author(s):  
K. L. Crowe

One of a number of techniques to increase efficiency in the engineering industry which have appeared in the last few decades is Critical Path Scheduling. It is not much used in the petroleum industry, because its application is limited, but in many activities associated with drilling it can save time and money. Its use is illustrated by applying it to a typical rig move.There is a time-cost relationship on any job. An unplanned job will take a time and have a cost which can be reduced by Critical Path Scheduling to a point where cost is minimal, because further reductions in time will involve overtime, airfreight, and other abnormal charges. These factors can be analysed and better judgements can be made.The method used to apply Critical Path Scheduling is the Time Scale Arrow Diagram. It is a manual technique suitable for small to medium size jobs which has advantages in analysis and presentation over conventional methods employing computers. A rectangular, or parallel line diagram is used.A rig move is a complex operation whose costs can be a significant part of those for a whole drilling operation. It is usual to rely on experienced personnel to arrange for the rig preparation, loading, trucking, and rigging up at the new location to be done in the most efficient way. Jobs vary depending on the arrangements between the operator and the contractor, distances, local conditions, and other such factors. The Critical Path Schedule enables an analysis to be made beforehand which will assist in obtaining maxiumum efficiency in the operation.

1984 ◽  
Vol 24 (1) ◽  
pp. 118
Author(s):  
Geoffrey Hart

Under the umbrella of a Technical Co-operation Agreement between Australia and China, CSR is managing a project to transfer to the Chinese petroleum industry the equipment and knowledge required for the financial evaluation of large offshore developments by computer modelling.A medium-size interactive computer will be supplied along with a financial evaluation software package. Australian specialists in financial evaluation and modelling, computer management and offshore engineering will visit China to conduct training courses, and twelve Chinese professionals will visit Australia for tertiary studies and work experience.China is coming to the end of the first round of awarding contracts to foreign companies for the exploration of offshore oil fields. Ahead are later stages of bidding and contract negotiation, the evaluation of field development proposals, and the management of joint venture participation in producing fields. The computer equipment and application skills to be supplied under this project will significantly upgrade the capability of the Chinese petroleum industry to manage these future stages.


2010 ◽  
Vol 13 (05) ◽  
pp. 812-822 ◽  
Author(s):  
Paul F. Worthington

Summary A knowledge of net pay is important for the volumetric estimation of hydrocarbon resources, a practice that underpins the value of the petroleum industry. Yet, there is no universal definition of net pay, there is no general acceptance of its role in integrated reservoir studies, there is no recognized method for evaluating it, and there are disparate views on how to make use of it. Partly for these reasons, net-to-gross pay constitutes a major source of uncertainty in volumetric reserves estimates, second only to gross rock volume. With the aim of improving this unsatisfactory state of affairs, I chart a critical path of net-pay understanding and application to dispel some of the unhelpful myths that abound within the industry and replace them with a defensible rationale to guide the quantification of net pay (thickness). Central to this process is the identification of net-pay cutoffs, themselves the subject of much controversy over the years. The approach is data-driven, in that it uses what we know, and also fit-for-purpose, in that it takes account of reservoir conditions. The outcome is a sounder basis for incorporating net pay into volumetric estimates of ultimate recovery and thence hydrocarbon resources.


Author(s):  
Colin R. Burvill ◽  
William P. Lewis

Abstract This paper is about collaborative relationships between manufacturing industry and universities in Australia, with particular reference to small to medium size enterprises (SME’s) because of their prevalence and their importance to the economies of industrialised countries. To put local conditions in perspective, it should be recorded that the annual output of Australian manufacturing industry currently is in excess of $100 billion (Australian dollars) of which 30% is exported [1]. The role of the Government in promoting collaboration between industry and universities, and the associated knowledge transfer, is exemplified by a senior body sponsored by the Australian Commonwealth Government.


1964 ◽  
Vol 43 (3) ◽  
pp. 161
Author(s):  
D.R. Whittet ◽  
W. Imbrie

Author(s):  
Vittal S. Anantatmula ◽  
James B. Webb

Critical Path (CP) method has been under scrutiny in recent years as the next evolution of project schedule development, the Critical Chain (CC) project management is gaining attention. Advocates of the Critical Chain method cite the Critical Path method's failure to address uncertainty properly. The purpose of this paper is to apply some of the features of the Critical Chain concepts to traditional approach of Critical Path for projects. More importantly, this research effort aims to demonstrate the applicability of CCPM to managing a portfolio of projects. The analysis, based on a critical review of past studies, experiments in both Critical Path and Critical Chain techniques, and a case study, presents recommendations to gain benefits of Critical Chain in a traditional Critical Path scheduling environment and to manage portfolio of projects or programs using some of the concepts of the Critical Chain Method.


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