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Proceedings Papers

Paper presented at the SPE Symposium: Decommissioning and Abandonment, November 30–December 2, 2021
Paper Number: SPE-208620-MS
... Operating scenarios are simulated in following sequence: steady state production matching field data recorded prior to shut-in, followed by prolonged well shut-in (due to subsea pipeline maintenance work), and Well A restart operations. The predicted subcooling profile plots from bottom hole...
Proceedings Papers

Paper presented at the SPE Symposium: Decommissioning and Abandonment, November 30–December 2, 2021
Paper Number: SPE-208486-MS
... PMT had completed the installation of platform, infield pipelines and partial of export pipeline in January 2014. Unfortunately, mishap had happened on 2 nd March 2014, where the Wellhead platform was tilted during drilling operation. The platform had tilted 2-3 degrees towards the drilling rig...
Proceedings Papers

Paper presented at the SPE Symposium: Decommissioning and Abandonment, November 30–December 2, 2021
Paper Number: SPE-208496-MS
... presents the overall project lesson learnt for 1st integrated well abandonment embarked from early stage of project planning, preparation, acceptance, technical, operation & project close out. The lesson learnt will be beneficial for all Operator & Contractor Company involving with integrated well...
Proceedings Papers

Paper presented at the SPE Symposium: Decommissioning and Abandonment, November 30–December 2, 2021
Paper Number: SPE-208473-MS
... drilling operation conductor plugging and abandonment casing and cementing platform casing design skid beam hhpu manpower hybrid hydraulic pulling unit downhole operation malaysia well decommissioning upstream oil & gas low cost plug well schematic well conductor removal...
Proceedings Papers

Paper presented at the SPE Symposium: Decommissioning and Abandonment, November 30–December 2, 2021
Paper Number: SPE-208465-MS
... to be isolated. The unique case of this operation was the challenges to execute PCSB's first subsea P&A operation in gas field Malaysia during pandemic situation. In March 2020, the Malaysian government imposed Movement Control Order (MCO) to curb the spread of the COVID-19. A semi-submersible rig...
Proceedings Papers

Paper presented at the SPE Symposium: Decommissioning and Abandonment, November 30–December 2, 2021
Paper Number: SPE-208461-MS
...Well Abandonment Materials Cement Slurries Conventional cement slurries are the most common plugging materials in the oil and gas industry because of their economy, availability, and operational familiarity. Portland cement, pozzolanic cement, blast furnace slag-based cement, phosphate...
Proceedings Papers

Paper presented at the SPE Symposium: Decommissioning and Abandonment, November 30–December 2, 2021
Paper Number: SPE-208479-MS
... The removal of topside and jacket structures is the core of the decommissioning operation in structural removal section. Removal operation consists of cutting and lifting the integrated topside or the topside modules and the Modular Support Frame (MSF). Usually, the removal of platforms uses...
Proceedings Papers

Paper presented at the SPE Symposium: Decommissioning and Abandonment, November 30–December 2, 2021
Paper Number: SPE-208478-MS
... technologies will not be able to determine cement quality behind several casing layers if the job is done through tubing. The cost involved is substantial especially in offshore operation in which the daily operating rate is significantly higher compared to an onshore operation. A new approach to cement...
Proceedings Papers

Paper presented at the SPE Symposium: Decommissioning and Abandonment, November 30–December 2, 2021
Paper Number: SPE-208483-MS
... condition and repair all structures that are, and all equipment and other property that is in the title area and used in connection with operations. Section 572(3) of the OPGGS Act provides that a titleholder must remove from the title area all structures that are, and all equipment and other property...
Proceedings Papers

Paper presented at the SPE Symposium: Decommissioning and Abandonment, November 30–December 2, 2021
Paper Number: SPE-208493-MS
... theory The evaluation process is complicated, and the operability is poor. PSO_GRNN model It can reasonably predict the corrosion development trend of buriedpipelines. Corrosion rate Based on the fixed corrosion rate model, it is necessary to find out theaccurate fixed-rate value...
Proceedings Papers

Paper presented at the SPE Symposium: Decommissioning and Abandonment, November 30–December 2, 2021
Paper Number: SPE-208621-MS
... closed innovation as the turnkey nature allows for optimization across each area, and across all in parallel. Figure 3 presents open innovation with the International Oil Company and service partners, to execute a SIMOPs project, with extensive phasing and batching of operations within each work...
Proceedings Papers

Paper presented at the SPE Symposium: Decommissioning and Abandonment, December 3–4, 2019
Paper Number: SPE-199203-MS
... Abstract The influence of an oil or gas operation on its host communities continues beyond the decommissioning of assets. The extent of influence and/ or impact will vary depending on the nature of the operations, in particular the proximity of sensitive receptors (e.g. communities, commercial...
Proceedings Papers

Paper presented at the SPE Symposium: Decommissioning and Abandonment, December 3–4, 2019
Paper Number: SPE-199196-MS
... operators to place long cement volumes in one trip to cover the desired zones. While the tool leaves the sacrificial tubing in situ, the cement plug is undisturbed, minimizing possible contamination. Seven deepwater wells were abandoned during a recent campaign in Angola using the high-performance...
Proceedings Papers

Paper presented at the SPE Symposium: Decommissioning and Abandonment, December 3–4, 2019
Paper Number: SPE-199207-MS
... be sensitive, and there is a need for a regional agreement in addition to domestic legislation to consider the potential impact of disputes on decommissioning operations. Current Regulatory Arrangement North Sea The North Sea is part of the North East Atlantic and is governed by the regional OSPAR...
Proceedings Papers

Paper presented at the SPE Symposium: Decommissioning and Abandonment, December 3–4, 2019
Paper Number: SPE-199190-MS
...%) sites were probably suitable for ex-situ reefing or decommissioning. Validation of the viability index was done using Remotely Operated Vehicle (ROV) media footage assessment. offshore facility decommissioning Upstream Oil & Gas Viability Index Artificial Intelligence platform spatial...
Proceedings Papers

Paper presented at the SPE Symposium: Decommissioning and Abandonment, December 3–4, 2019
Paper Number: SPE-199230-MS
... for the cementing operations; there was no requirement to clean the tanks between mixing the cement setting spacer and the cement spacer used to cement the plug. After the pill was mixed, the tubing was punched at 4,100 ft, and a 500 ft thixotropic water-based pill was set in the annulus and outside of the punched...
Proceedings Papers

Paper presented at the SPE Symposium: Decommissioning and Abandonment, December 3–4, 2019
Paper Number: SPE-199171-MS
... to mitigate sustained annulus pressure became extremely challenging as killing methods viz circulation, bull-heading etc. did not show any encouraging results. CTU operation for wellbore cleaning/ killing was a no-no with available resources for the sizes of stone/pebbles in the bore. Owing to various well...
Proceedings Papers

Paper presented at the SPE Symposium: Decommissioning and Abandonment, December 3–4, 2019
Paper Number: SPE-199179-MS
... challenges that the industry has faced before, this will require collaboration from Operators, Host Authority, Service Providers, and other relevant stakeholders to overcome the challenges that decommissioning wave brings. PETRONAS as the host Authority in Malaysia is playing a key role in turning...

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