In need of an exploration boost, Norway doled out a record 83 production licenses in mature areas of the Norwegian Continental Shelf to 33 firms. Norway hopes for a continued rise in offshore exploration and development activity to ensure steady oil and gas production through the next decade. Equinor has grabbed seven new licenses in the Barents and Norwegian Seas, the latest in a flurry of offshore activity in which the firm has added acreage off the UK and Brazil, gained approval for a big Arctic project, and awarded billions of dollars in service contracts. A reservoir-conditions coreflood study was undertaken to assist with design of drilling and completion fluids for a Norwegian field. Multiple fluids were tested, and the lowest permeability alterations did not correlate with the lowest drilling-fluid-filtrate-loss volumes.
Thus, it is crucial to design and conduct well completions in such a manner to protect workers, minimize risks to the environment, and effectively partner with local communities. This workshop will engage experts and attendees to better understand and enhance the best HSE practices for well completions. Well completions, especially hydraulic fracturing, continue to be a significant topic of interest for the public. Thus, it is crucial to design and conduct well completions in such a manner to protect workers, minimize risks to the environment, and effectively partner with local communities. This workshop will engage experts and attendees to better understand and enhance the best HSE practices for well completions.
The Black Sea, offshore Romania, is one of the world's emerging deepwater basins. The objectives of the campaign presented in this paper include safe and compliant operations, data acquisition, reservoir characterization and de-risking of adjacent prospects over the course of a seven-well, deepwater exploratory campaign. The challenges inherent to deepwater are exacerbated in exploratory wells, with additional focus placed on the reduction of risks associated with ECD management, downhole losses, wellbore instability, gas hydrate formation and mitigation of shallow hazards. The scope of this project presented additional logistical challenges, as there were no dedicated facilities in this area to support large-scale deepwater projects. Deepwater projects in emerging areas present a variety of challenges including planning, constructing, and commissioning facilities with sufficient capacity to prepare and store the requisite volumes of drilling and completion fluids. Infrastructure preparation in this project included the design and construction of two liquid mud plants with the capacity to mix, condition and store large volumes of drilling and completion fluids for a multi-well campaign. Additionally, a bulk facility was built and commissioned for handling barite additives used in the project. Project management and monitoring techniques were used to ensure on-time completion of facilities following the critical paths of the project timeline. All planned operational objectives were safely achieved because of detailed planning, commitment, and capital investments in assets and the infrastructure to support operations. This approach enabled delivery of project objectives without incidents of fluids-related non-productive time (NPT). The logistical objectives were achieved on time, and in an environmentally compliant manner. All fluid volumes were safely prepared and delivered to the 5th generation semi-submersible for use in the target intervals. This included delivery of large volumes of high-density riserless kill fluid (RKF) that was stored for three months on a multi-purpose supply vessel (MPSV) without the occurrence of barite sag. All drilling and formation evaluation objectives were accomplished with a high-performance, non-aqueous fluid (NAF) specifically designed for use in this multi-well campaign. The delivery of well testing, plugging and abandonment objectives was facilitated by use of an integrated suite of wellbore cleanup (WBCU), completion fluids and filtration technologies.
On the far end of the flowback spectrum is a completion process called soakback. Instead of allowing the well to flow back right after completion, some operators are forced to shut in their wells for months at a time until takeaway capacity is available. The completion fluids then soak into the shale rock. What happens during that process is still being debated, but flowback analysis may provide some answers. Robert Hawkes, the corporate director of reservoir solutions at Trican Well Service, has been studying the issue for the past few years and collaborates with the research team at the University of Alberta.
In a corresponding article from 2015, I quoted the title of Brant Bennion's 1999 article "Formation Damage--The Impairment of the Invisible, by the Inevitable and Uncontrollable, Resulting in an Indeterminate Reduction of the Unquantifiable." I would like to think that, given the considerable effort spent on drilling- and completion-fluid development since the article was written, we have a much better control of the "inevitable and uncontrollable." Likewise, with respect to a "reduction in the unquantifiable," much of the uncertainty can be minimized by performing representative corefloods using plugs of different permeability value to reflect the values expected downhole. It is permeability that is often the most difficult to quantify; therefore, focusing on permeabilities in coreflooding to cover the span of those likely to be encountered can improve our understanding of the potential formation damage that could be expected. In this short article, I would like to focus on "the impairment of the invisible" because it is here that the greatest uncertainty exists with regard to formation-damage evaluation.
This year has been a progressive year for me; besides being able to play more relaxing rounds of golf, it is now the execution time for all the research collaboration agreements signed earlier in the year, mainly with oil and gas companies. This year also marked a year after completing my tenure as the deputy director of the University of Malaya (UM) Center of Innovation and Commercialization (UMCIC). UMCIC is the technology-transfer office of UM, which is responsible for protecting UM's inventions through intellectual-property registration such as patent, copyright, and trade secrets. This office is also responsible for promoting UM's inventions through commercialization activities--namely, licensing, outright sale, and creation of spinoff companies. UMCIC also supports and promotes university/industry research collaborations that lead to potential innovative and commercial activities.
This year marked the third year after completing my tenure as the deputy director of the University of Malaya Center of Innovation and Commercialization (UMCIC). UMCIC is the technology transfer office at the University of Malaya (UM), which is responsible for protecting UM's inventions through intellectual-property registration such as patents, copyrights, and trade secrets. Despite that, this year remained a busy and challenging year for most academics and researchers, specifically in Malaysia. Unstable oil price has a great effect on Malaysia, where the economy largely relies on the petroleum industry, reducing the research-funding assistance from the government. In fact, research funding has been slashed, and the university is expected to generate its own income.
A reservoir-conditions coreflood study was undertaken to assist with design of drilling and completion fluids for a Norwegian field. Multiple fluids were tested, and the lowest permeability alterations did not correlate with the lowest drilling-fluid-filtrate-loss volumes. This paper will examine the factors that contributed to alterations in the core samples. These metrics are unfortunately subject to a number of factors that make interpretation difficult and therefore add risks to the decision-making process. In order to reduce these risks, a number of interpretive techniques are used.