FreeCable, a Kietta Technology - News & Events

SEG International Exhibition and Annual Meeting - 24-29 September 2017 - Houston - Texas

Kietta is present at SEG International Exhibition and Annual Meeting in Houston. Our CTO Luc Haumonté will present two abstracts on FreeCable technology. Do not hesitate to attend if you are at the conference! The first abstract compares FreeCable vs. legacy acquisition techniques. The second abstract presents real survey acquisition results for the first time! Kietta will also be present at booth No. 2227. Results comparing FreeCable vs. Seabed will be presented there. Mark your calendar: Technical Sessions Wednesday 27 @ 9:20AM UAS1 session (Unmanned Geophysical Systems), room C351F, A paradigm shift in marine seismic: Broadband full-offset full-azimuth 4-C acquisition with midwater stationary cable. More information Wednesday 27 @ 4:20PM ACQ5 session (Marine Seismic Acquisition), room 371F, Survey results obtained in a complex geological environment with midwater stationary cable. More information Booth 2227 Monday 25 @9:30 am FreeCable vs. Seabed in irregular seabed: raw data analysis from 2D elastic modeling Monday 25 @2:30 pm FreeCable vs. Seabed in irregular seabed: comparison of post-migration data Tuesday 26 @1:30 pm FreeCable vs. Seabed in irregular seabed: raw data analysis from 2D elastic modeling Wednesday 25 @11:30 am FreeCable vs. Seabed in irregular seabed: raw data analysis from 2D elastic modeling Wednesday 25 @1:30 pm FreeCable vs. Seabed in irregular seabed: comparison of post-migration data

Geophysical Society of Houston - 7 novembre 2017 Lionel Lhommet - Kietta S.A.S. Traditional marine seismic acquisition methods (streamer, OBC) have reached some inherent limitations that are difficult to overcome. Some new methods such as nodes have been recently introduced but lead to a significant cost increase in opex due to their low productivity. The new patented method presented here combines the advantages of all techniques to offer excellent quality data in a very efficient manner. The presentation describes the method’s background, its positioning compared to competing techniques, and presents the key advantages of this new concept.

Cutting-edge marine seismic technologies — some novel approaches to acquiring 3D seismic data in a complex marine environment

First Break - Nov 2017 - Special Topics Azizur Rahman Khan, Turki M. Al-Ghamdi and Fuad A. Al-Somali The use of streamer or Ocean Bottom Cable (OBC) techniques for a seismic survey in a complex marine environment present major operational challenges owing to islands, large variations in water depth within a few kilometres from the shore and a complex sea floor because of canyons, pinnacles, steep reef flanks, rugose sea floor, and corals. Salt-dominated provinces, too, present a complicated geological setting — deep targets below salt layers of variable thickness, salt mounds, massive halite and anhydrite layers in the overburden, a highly rotated post-salt section, steep geological dips at the target level, and a complex fault system. Complexity of the survey area requires novel approaches and customized seismic data acquisition technologies for a cost-effective imaging solution. We present four innovative marine seismic technologies, tested to assess their efficacy in acquiring long offset wide azimuth data, in a logistically complex marine environment.

The Midwater Stationary Cable (FreeCable) to solve today’s offshore seismic acquisition paradox

FIRST BREAK - Vol 35, No 11 - November 2017 Luc Haumonté The world economy is demanding an increasing volume of oil and according to oil market specialists this trend is not expected to decrease in the next decades. The easy oil is gone and oil companies currently seek either increasing the existing production, which will last for some limited period of time, or continuing exploration for new discoveries. The fact that the easy oil has already been found practically means that the new exploration challenge is to look for complex reservoirs such as deep target, complicated geological environments, subsalt imaging, or hardly accessible sites. Generally speaking, solving this problem requires a high-end seismic acquisition technique able to provide full offset full azimuth coverage, broadband data and deep penetration. Indeed, zero offset traces are needed to build a reliable structural model and estimate velocity for deep imaging. Long offsets are required to illuminate salt body flanks and subsalt reservoirs. The low frequency content is necessary to image layer boundaries and obtain good penetration. The high frequency content is used for obtaining interface details and resolving thinner beds. Deep penetration is also obtained through low measurement noise and high fold leading to a great post-stack signal-to-noise ratio. Finally, full azimuth and full offset maximizes the target reservoir illumination and minimized the probability of shadow areas. Such a qualitative acquisition method is generally perceived to be very expensive. On the other hand, the economic downturn in the oil and gas industry and especially in the exploration market puts high pressure on expenditures and places traditional acquisition technologies in difficulty. Lots of seismic vessels are placed in cold stack and the ocean bottom cable time seems to be over. To solve this paradox the seismic industry is looking for new solutions providing better, cheaper, and faster acquisitions. Nodes are gaining momentum but do not completely respond to the three criteria. Robotic projects tend to flourish, but most of them are not yet industrial. In this article a field proven unmanned solution able to address the new industry challenges is presented. The patented technology developed by Kietta consists of controlling unmanned midwater stationary cables (MSCs).

This paper was presented at the 2016 EAGE/SPE Sub-Salt Imaging Workshop. It describes the FreeCable system and how it delivers value to improve sub-salt imaging.

HQ / EUROPE

+33 4 96 20 80 30

165 Avenue du Prado
13008 Marseille
France

FREECABLE - Seismic without compromises

SEG International Exhibition and Annual Meeting - 24-29 September 2017 - Houston - Texas

GSH talk 2017

Cutting-edge marine seismic technologies — some novel approaches to acquiring 3D seismic data in a complex marine environment

The Midwater Stationary Cable (FreeCable) to solve today’s offshore seismic acquisition paradox

Subsalt exploration

News & events

events

SEG International Exhibition and Annual Meeting - 24-29 September 2017 - Houston - Texas

publications

GSH talk 2017

Cutting-edge marine seismic technologies — some novel approaches to acquiring 3D seismic data in a complex marine environment

The Midwater Stationary Cable (FreeCable) to solve today’s offshore seismic acquisition paradox

Subsalt exploration

HQ / EUROPE