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May/June

Drilling & Completion News

The Bluewhale 1, built by Yantai CIMC Raffles Offshore, is the first turnkey project for a Chinese offshore ultra-deepwater field.

Bluewhale 1, an ultra-deepwater semisubmersible built by Yantai CIMC Raffles Offshore, has been named and delivered in Yantai, China. As the first turnkey project for a Chinese offshore ultra-deepwater field, Bluewhale 1 will be operated by China National Petroleum Offshore and Bluewhale Offshore, a subsidiary of CIMC...

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Petrobras finds success in using adapted MPD techniques for deepwater completions operations

Figure 1: Multiple-zone completions for carbonate reservoirs, like intelligent well completions (IWC) used in pre-salt areas, usually do not have a separate lower completion that isolates the formation during the whole upper completion deployment. To address this, new designs for IWC were put in place. In this case, a separate lower completion is installed to temporarily isolate the loss zone, while the upper completion is installed on a second run.

Brazilian oil and gas production has progressively migrated to offshore areas during the past decades, with the most prolific plays being found in the Campos Basin deepwater blocks. This scenario has led to significant technology development and application, turning Petrobras into one of the most experienced deepwater operators...

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Modifications of Jones Act rulings would be costly for US, industry

The API report states that there would be a significant decrease in Gulf of Mexico project startups as a result of the proposed modifications. In 2022, for instance, 17 projects could be expected to start up without the modifications in place. That number would fall to 11 if the proposed modifications were enacted. In addition, projects that are under development but not yet installed could be delayed due to the inability to utilize foreign-flagged vessels.

The API is predicting far-reaching consequences from modifications being proposed by the US Customs and Border Protection Agency (CBP) relating to decades of Jones Act rulings. In a report released on 4 April, the organization concluded that modifying such rulings, which pertain to the use of Jones Act vessels for offshore oil and gas activities, could lead to the loss of 30,000 industry-associated jobs as soon as this year. Significant decreases in US oil and gas production and in government revenue were also predicted...

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Operator/contractor collaboration results in lightweight drilling package for long-term P&A campaign

Sapura Energy has developed a lightweight drilling package for a long-term plug and abandonment (P&A) campaign. The package, under construction in Italy, will be deployed in conjunction with the SKD Alliance semi-tender unit (pictured). Reducing the weight of the drilling package was key as existing rigs were found to be too heavy for the aging platforms.

Plug and abandonment system was designed to deal with wellbore uncertainties while remaining light enough to be rigged up on aging platforms By Jean-Christophe Le Guen, Sapura Energy Sapura Energy recently developed a lightweight drilling package for a long-term plug and abandonment (P&A) campaign in the Asia Pacific region. The drilling package, to be deployed in conjunction with the SKD Alliance semi-tender rig in early 2018, was developed directly in response to an operator’s request for a safe and economical P&A solution. Driven by the belief that there is not one-size-fits-all solution for P&A, the contractor began by carefully comparing the full P&A campaign costs versus a simple dayrate. This was done under the recognition that, while some options may ...

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