Friday 25 January 2019

What comes under Drilling and well operations


Drilling and well operations are at all times be carried out in a safe and prudent manner in accordance with formal plans and requirements. Relevant equipment specifications for operation and maintenance with associated limitations to the extent necessary are reflected in applicable operations and maintenance procedures. Measures are taken to ensure high regularity throughout operations. Exact position of the well and the distance to other wells in the vicinity shall be known at all times. Drilling and Well operation are to be performed with the barriers in place according to the Drilling/Well Operations Program.Operational measures are to be taken to prevent blow-out, fire, explosion, pollution or other damage. Well Control Procedures are been defined and agreed to in advance, and followed accordingly. All drills carried out are to be documented. This relates to the following: • Drilling ∗ Directional Drilling ∗ Casing Running ∗ Drilling Fluid handling ∗ Cementing ∗ Logging • Well Evaluation & Testing • Completion • Start-up & Production ∗ Preparations prior to Perforation ∗ Perforation and Production • Well Intervention ∗ Testing and Maintenance ∗ Wireline, Coiled Tubing, Snubbing Operations Through Tubing ∗ Fluid Operations • Plugging/Abandonment .

It is important that required documentation and certification of the facilities remain valid when demobilisation commences, so as to demonstrate suitability, regulatory compliance and compatibility with required standards. Plans for demobilisation assume prior consultation and concurrence by the operator/owner of the equipment and existing facilities. Any need for safety & emergency systems must be addressed. The specifications for removal and shipment are subject to concurrence by responsible parties by commencement demobilisation. Considerations for simultaneous activities must have to be made. Rigging down equipment and handling for shipment to shore which are not considered as ordinary operations, needs to have a pre-job meeting or a Safe Job Analysis (SJA) with involved personnel by commencement of these jobs (ref. Annex A). Further, the already existing safety requirements must be observed and followed, including any directions given by the offshore installation management .Besides the Operators own assessment of performance has to be done. For the purpose of the continuous improvement and transfer of experience, the Contractor is encouraged to advise the Operator of such matters as: a) Challenges in performance versus set goals for the activity. b) Contractor's suggestions for improvements/simplifications in work processes and methods that might contribute to more efficient/cost effective performance by the Operator and his other contractors for future work. c) Information and feedback from incidents, events, conditions and other matters arising during operations or affecting performance of the services and which have reinforced or changed the contractor's knowledge about specific subjects; or which have resulted in or might lead to changes in Contractor's relevant documentation, methods or work processes. d) Contractor's assessment of deviations from this standard and mandatory requirements, including recommendations for the future. An assessment of measures for reduced fuel/energy demands and steps to reduce the consumption of chemicals and use of chemicals with better environmental characteristics shall be part of the continuous improvement process. The technology that is there for reducing discharges to the sea and emissions to the air are to be continuously evaluated. There has to be some systems in place for handling waste and keeping track of chemicals/substances onboard. Discharges must have to be within the SFT’s regulatory requirements or in the actual discharge permit for the operation. The discharge of drilling fluids and the well stimulation fluids etc. Must be minimised, by reuse of other effort to reduce discharges. All discharges to sea as a results of cementing operations must have to be minimised for both environmental and economical reasons.

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