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Geology & Geophysics

High-quality seismic data is important to unlock Libya's vast resource potential. (Image source: Stryde)

Libya's Arabian Gulf Oil Company has collaborated with TAY Oil Services and Polaris to initiate a survey onshore Concession 57 with the deployment of Stryde's onshore nodal seismic solutions 

High-quality seismic data is important to unlock Libya's vast resource potential, as the country reopens to investors for exploration and development prospects. This can be achieved with Stryde's semi-automated, containerised system, featuring 40,000 seismic nodes, which promise shortest possible turn-over. A single operator can rotate 13,000 nodes within 24 hours by using the containerised system. These nodes can reach exceptional depths, eliminating surface interference for best possible coupling to achieve optimal data quality. The survey operations can be conducted flawlessly without disrupting production activities or the surrounding environment. The streamlining makes large-scale, high-density seismic surveys more efficient and cost-effective.

Abdellatif Hakkoumi, Polaris regional manager, said, “To meet the rising demand for high-resolution seismic imaging across expansive areas of Libya, we required an innovative nodal system capable of supporting a high channel count, without the logistical and financial constraints of conventional systems.

"With the quick delivery of Stryde’s fully autonomous nodes and semi-automated containerised seismic system, we have rapidly transitioned into a new era of land seismic acquisition.

"This advanced technology enables us to dramatically increase trace density per square kilometre. As a result, our customers benefit from improved subsurface imaging, reduced geological uncertainty, optimized well placement, and lower drilling risks, ultimately increasing exploration success rates.”

Stryde’s Containerised Seismic System, housed within a 20ft shipping container, seamlessly integrates all essential hardware for semi-automated node charging, harvesting, and on the fly generation of seismic data deliverables.

Mehdi Tascher, sales director at Stryde, said, “This purchase marks a significant milestone in the advancement of seismic exploration in Libya. With our state-of-the-art seismic system, TAY Oil-Polaris is set to carry out the largest nodal seismic acquisition project ever conducted in North Africa and will be able to meet fully Libyan onshore seismic growing demand.

“We are proud to supply TAY Oil-Polaris with the industry’s only fully integrated and semi-automated seismic system, enabling unprecedented operational efficiency while delivering high-resolution seismic data to their Libyan customers.”

“Libya’s complex geology, defined by thick carbonate sequences and rugged terrain, poses significant challenges for accurate subsurface imaging. To overcome these obstacles, high-density sensor deployment is essential for delivering superior structural and stratigraphic resolution. By harnessing STRYDE’s advanced nodal system, TAY Oil-Polaris is uniquely equipped to navigate these complexities.”

Stryde’s technology offers true scalability for large-scale seismic acquisition. (Image source: Stryde)

Exploration services company, Argas, has purchased 30,000 Range+ STRYDE nodes and Stryde’s Nimble Seismic System, marking the first-ever deployment of nodal technology for onshore seismic acquisition in Egypt

The first deployment of the newly acquired Stryde system will be on a very large 2D seismic survey in Egypt. The technology will be used to acquire high-quality seismic data across highly prospective sedimentary basins, supporting oil and gas exploration efforts in one of Egypt’s most promising frontier regions.

Impressed by its cost-efficiency and operational agility, Argas made the strategic decision to integrate Stryde’s technology into its operations.

Stryde’s technology offers true scalability for large-scale seismic acquisition. Its ultra-lightweight Range+ nodes, coupled with a state-of-the-art, high-capacity charging, harvesting, and QC ecosystem, enable thousands of nodes to be rotated daily.

This ensures faster acquisition cycles and rapid delivery of high-quality seismic data, giving Argas a competitive edge in Egypt’s rapidly evolving energy sector.

“After working with Stryde’s system on previous projects, it became clear that this technology brings a significant advantage to both us and our clients,” said Soufiane Azzi, Director of Commercials and Collaborations of Argas.

“The system has proven to drastically reduce deployment time, reduce headcount and vehicles count, simplifies logistics, improve recording time window, and delivers excellent seismic data. We are proud to be the first to bring node technology to Egypt.”

“This is a major milestone, not only for STRYDE and ARGAS, but for Egypt’s energy sector as a whole,” said Mehdi Tascher, sales director at Stryde.

“ARGAS’s purchase is spot on, and reflects the growing demand for scalable and efficient seismic acquisition systems that enable high-density data capture for superior subsurface imaging, empowering more confident and informed exploration decisions. This sale underscores the global trust in STRYDE’s technology and its proven ability to transform seismic operations through operational excellence and data quality.”

 

A single well location can now be pinpointed at Oryx prospect. (Image source: Pancontinental Energy)

Pancontinental Energy has released revised estimates of prospective resources for the company's PEL 87 project, Orange Basin offshore Namibia

Pancontinental chief executive officer, Iain Smith, said, "The Pancontinental technical team continues to deliver, such that we are now able to pinpoint a single well location at the Oryx prospect that offers oil potential at three discrete intervals for a combined 2.5 billion barrels of High Case prospective resource, with a Geological Chance of Success upgraded to 26.2%."

The Oryx prospect now incorporates the prospective features previously identified as the Calypso and Addax Channel leads, due to the fact that it has been determined that all three targets may be effectively tested by a single exploration well. As a result the High Case (3U) prospective resource estimate (gross, 100%) for Oryx now stands at over 2.5bn barrels of oil, recoverable.

Of note is that, in general terms, it is the Best Case (2U) prospective resource estimates which have most benefited from the revised inputs, in particular for Oryx and Hyrax (due to their relative maturity, as prospects). The Low Case (1U) and High Case (3U) for each prospect/lead is affected to a lesser degree and the prospective resource estimates for the Addax Fan and Addax South leads remain unchanged, as does the GCoS. The GCoS for the remainder of the prospect/lead inventory has increased, based upon seismic synthetic modelling which provides positive indications for a hydrocarbon fluid effect (interpreted as a low gas-oil-ratio oil). As such the estimated GCoS for the main Oryx prospect now stands at 26.2% (previous estimate 22.5%).

QI screening is currently on, generating a mapping of an additional prospective feature, external to the Saturn Complex. The Phoebe West lead is interpreted as an Albian-to-Aptian basinal turbidite fan feature fed by a long-lived northern channel clastic bypass depositional system. Interpretation of this feature is ongoing at this time and Pancontinental anticipates providing further detail soon.

 

The partners will conduct a high-resolution gravity survey. (Image source: 88 Energy)

88 Energy Limited has secured license extension for 12 months from the Namibian Government, extending the PEL 93 First Renewal Exploration Period to 2 October 2026

During the extended period the company will aim datasets Integration to select drilling location, and complete an Environmental Impact Assessment (EIA) for drilling

The PEL 93 is located in the Owambo Basin, onshore Namibia.

A farmout agreement with Monitor Exploration Limited for a joint venture gives 88 Energy Limited a 20% working interest in PEL 93. By way of an amendment on the agreement, the partners have introduced a new stage 1A work programme to target pre-drill de-risking.

The 2024 2D seismic data collected from an anticlinal structure -- Lead 9 -- spreading across 100 sq km has led to new insights to be unlocked from a gravity survey area. The partners have hence included on the programme a high-resolution gravity survey to focus on the southern area of PEL 93. The survey will be supplemented by radiometric data. 

This anticipation has been strengthened by similar findings from the Kavango West 1X exploration well where ReconAfrica is now all set to start drilling this month. 

Lead 9 is similar to Recon’s imminent Kavango West 1X well in that both show a very large and robust structural closure including the shallow clastic reservoirs, the deeper Otavi carbonate reservoir seen in Naingopo-1 and the deeper source rocks.

Monitor's statement read, “Our early results are pointing to something potentially significant in the southern area of PEL 93 in the Owambo Basin. With multiple datasets aligning and the prospect of even larger structures emerging, the Joint Venture is building momentum towards a drilling event and what could be a basin opening discovery with broad implications for all of Namibia given the significance in unlocking a major new hydrocarbon play.” 

DUG Elastic MP-FWI Imaging is a unique approach to seismic processing and imaging. (Image source: DUG)

DUG has released the latest results from its elastic multi-parameter full waveform inversion (MP-FWI) imaging technology which it launched in 2022, since when more than 70 successful projects have been completed worldwide

DUG Elastic MP-FWI Imaging is a unique approach to seismic processing and imaging which is not only a complete replacement for the traditional processing and imaging workflows, it also replaces the subsequent inversion workflow for elastic rock properties.

With the traditional processing workflow, projects can take many months to years to complete. It involves the testing and application of dozens of steps such as deghosting, designature, demultiple and regularisation, all designed to overcome the limitations of conventional imaging. These workflows are complex, subjective, and very time-consuming and they rely on many assumptions and simplifications. All of these issues impact the output data quality. The resulting, primary-only data then undergoes a similarly complex model-building workflow to derive an estimate of the subsurface velocity, which is used for depth imaging. Post-migration processing is performed before the pre-stack reflectivity undergoes another workflow to derive rock properties that feed into interpretation, also relying on simplifications of the actual physics.

As well as three-component reflectivity and velocity, DUG Elastic MP-FWI Imaging enables the estimation of fundamental rock properties like P-impedance, density and Vp/Vs from field data, without the need for a secondary amplitude variation with angle (AVA) inversion step. DUG Elastic MP-FWI Imaging simultaneously resolves not only subsurface structural features but also quantitative rock property information while avoiding the need for extensive data pre-processing and (post-imaging) AVA-inversion workflows.

“Elastic MP-FWI Imaging accounts for both compressional and shear waves, handling variations in seismic wave dynamics as a function of incidence angle, including in the presence of high impedance contrasts and onshore near-surface geological complexity,” said Tom Rayment, DUG chief geophysicist. “Multiples and converted waves are now treated as valuable additional signal, increasing sampling, resolution and constraining the inverted parameters.”

DUG managing director, Dr Matthew Lamont, added, “We have invested over a decade of R&D to realise this opportunity. Our new Elastic MP-FWI Imaging technology is the product of a multi-year, significant and ongoing R&D effort, which has seen the continuous integration of complete-physics FWI imaging including viscoelasticity, anisotropy and multi-parameter updates. When using the full wavefield for simultaneous velocity model building, rock property inversion and true-amplitude imaging, a multi-parameter solution is a necessity.”

“The fact that DUG MP-FWI Imaging is delivering material imaging uplifts using field-data input is very powerful, but to couple this with high-resolution elastic rock property outputs for quantitative interpretation is even more exciting, providing immediate opportunities for new surveys and maximising the value of legacy datasets,” said Martin Stupel, geophysical manager, Geophysical Pursuit Inc.

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