Exploration Activities

There are virtually no unknown locations on the planet where major conventional oil reserves are likely to be found. Today’s search targets are complicated geological features in remote locations with harsh environmental circumstances. LLC Tagulskoe expands its resource base by implementing cutting-edge technology for gathering and processing information on the structure of large oil and gas basins as well as individual deposits.

Exploration Activities

Even with traditional resources, finding new oil reservoirs is a difficult and expensive task. When working in uncharted, difficult-to-reach areas, exploration and mistake expenses skyrocket. Basin modeling allows for the elimination of a large number of uncertainties prior to the start of field work. Basin modeling entails reenacting the creation and modification of geological layers over millions of years to establish when they first emerged, where they accumulated, and how hydrocarbons were redistributed.

The processes of production and alteration of geological layers are reconstructed within the framework of this technology, using all known information about the geology of the region and mathematical and analytical procedures, making it possible to pinpoint the locations of hydrocarbon accumulation.

LLC Tagulskoe conducts exploration activities in order to expand the resource base. Exploratory actions have consistently yielded excellent results thanks to advanced exploration techniques and the selection of the most promising regions based on study findings. LLC Tagulskoe is pursuing a number of exploratory and experimental initiatives, as well as steps to build its own geophysical service. Field seismic modeling methods were created to give the finest monitoring systems for projects in the Krasnoyarsk Territory.

The Company takes a rigorous and complete approach to the exploration and development of its fields and license territories, from the collection and interpretation of seismic data through the building of dynamic field models for the placement of exploration and production wells. We use current geology and hydrodynamic modeling, as well as novel well drilling and completion techniques, to maximize the final recovery of hydrocarbons in a cost-effective and environmentally responsible manner. The success of exploration drilling has continued to increase as sophisticated technology for processing and interpreting seismic data has been applied step by step.

Green seismic

Green seismic uses the Technology 2 wireless radio telemetry data logging technology. The compact logging equipment is delivered to the installation site without the use of heavy machinery, which requires cutting apertures of at least four meters wide. Green Seismic requires only a 1-1.5 m wide track. The volume of cut wood is cut in half as a result of refusing to utilize the cable, and the information obtained is as accurate as regular seismic exploration data.

The second version of the technology is currently being tested on LLC Tagulskoe’s fields. The main purpose of Green Seismic 2.0 is to narrow the clearings, which are cut not only for reception but also for excitation lines. The company’s professionals do this by employing small drilling rigs with a light chassis. Additionally, the project team developed a slalom-profile technology that allows light vehicles to bend around enormous trees, lowering tree removal volume even further.

The Crab, a household complex for conducting marine seismic research utilizing bottom stations, was developed by LLC Tagulskoe. The project included participation from LLC Tagulskoe, the Marine Arctic Geological Exploration Expedition, the Marine Technical Center, and the Russian Federation’s Ministry of Industry and Trade. Seismic investigation at the Neptune field in the Ayashsky licensing region of the Sea of Okhotsk utilised 2,800 bottom stations produced for the 2019 field season. 3D 4C investigations employing KRAB bottom stations on a 515 km2 region lasted more than four months, making them the largest and only ones in Russia using the 3D 4C approach in 2019. At the time, the “Crab 2.0” project for new generation stations is being developed. They will be tested on the Arctic shelf in 2021.

Because of their great efficiency and low cost of work, several electromagnetic technologies are widely used at all stages of deposit prospecting, exploration, and development. Modern electrical prospecting fits within the category of 3D technologies because of its great density of measurement points. LLC Tagulskoe tried controlled source electrical exploration (CSEM) on a continental asset in 2019 for the first time in Russia in order to locate and clarify the boundaries of the Bazhenov reservoir’s productive zone. This method is often utilized in offshore fields, but the company’s experts have successfully applied it to onshore prospecting.