In 2009, the ReGeo team began developing self-contained self-floating seismic benthic

Unsatisfactory proposals in the bottom seismic market prompted us to develop a fundamentally new technology. When designing the bottom station, we were inspired by the concept of “Lean Manufacturing”, oriented to the expectations of the consumer, namely, the quality of the data, and excluding any actions leading to losses from the production process (seismic prospecting), which saves time and money for the client.

In 2009 our team of engineers and designers started with design of the first version of our autonomous self-pop-up OBN that can be used for acquisition of high quality 3D/4C full azimuth seismic data.

Our objective was to create a new and novel solution for seismic data acquisition market. We focused on Lean Design concept as a response to customer dissatisfaction with the price-cost ratio of seismic data through minimization of survey costs and adding value to the performance of seismic projects.

We keep our prices low, and, as a result, we offer best value-for-money full azimuth seismic data.

Our state-of-the-art design takes advantage of the recent innovations in hardware, software, networking, wireless computing. Our team of designers and engineers works together with the leading scientific institutes. Well set performance targets and developed the solutions that let us build a revolutionary product.

Why use ropes?

The ropes attached to the stations limit deployment configuration options while the length of the rope, which predetermines the stations spacing, is fixed. Furthermore, use of the ropes limits operational depth and slow down deployment operations. We offer rope-free design of sea bottom stations. For retrieval of our stations we apply acoustic release, which provides operational, geophysical and economic advantages.

Why not increase operational efficiency?

Because of the pop – up design of the stations the seismic survey performance can reach up to 20 km2 per day. Four-component data recording provide high informational value of data. They allow imaging of targets in P/PS waves, facilitate identification of dry and fluid saturated fractured areas, helps obtain high images of subsalt, sub-basalt and under-gas-cap zone structures.

Why not work wherever you need?

We collect seismic data onshore, in transit areas and offshore at the depths up to 7000 m. We can work in the area with sea surface and subsurface obstacles, such as sea bottom rocks, underwater pipelines, subsea production equipment, in oil rigs vicinity, in the areas with commercial fishing and heavy sea traffic, in harsh Arctic conditions, with drifting ice and ice floe, etc.

Why waste time on stations opening during offshore operations?

It is much more effective to pick-up the station onboard, wirelessly download recorded data, attach it to a new eco-anchor and re-deploy it to a new position. We managed to achieve 90-day operations without recharging of battery. Our energy saving high-speed communication module provides wireless transfer of data in just a few minutes.

Why use expensive seismic vessels?

We do not require special seismic vessels and can use any vessel of opportunity, including rubber boats, which might be highly relevant for tidal zones. We also do not need special vessels equipped with purpose-built on-board mechanisms for node-on-a-rope deployments.

Why restrict yourself to only one acquisition technology and data type?

During one seismic survey, in addition to 3D/4C seismic data, we deliver to our client low-frequency data for low frequency based seismic data processing and search for direct hydrocarbon indicators. Our experience includes more than 160 projects with low-frequency seismic analysis and direct hydrocarbon indicators, covering more than 1500 km2 in more than 160 oil fields. The obtained results have been confirmed by successful drilling. Probability of successful oil reservoir forecasting is 85%, herewith the method predicts the absence of oil-saturated reservoirs with a probability of more than 99%.

The risks

Risk

The node have stuck on the bottom.

Solution

Built-in spring ejectors eliminate the risk for the stations of being stuck at the seafloor.

Риск:

The anchor left on the seafloor after the station had been released might pose environmental hazard.

Solution:

Our proprietary eco-friendly concrete anchors meet the strictest environmental requirements. The formula used in the material of the anchors weights was developed for all types of water environments with the view to ensure disintegration of the concrete into siliceous sand within few months.

Risk

The station can be drifted away by the stream.

Solution

OBN have better positioning repeatability than streamers. Our eight-year field experience has shown that the departure of the real instrument position on the seafloor from its drop point is sufficiently small. Acoustic positioning of the station is provided by built-in acoustic transponder. Surface positioning of the stations provides GPS receiver.

In 2009, the ReGeo team began developing self-contained self-floating seismic benthic