Poland: Early core results from shales encouraging

By OGJ editors

Early core analysis results from shales in the Baltic basin are “cautiously encouraging,” said BNK Petroleum Inc., Camarillo, Calif.

The preliminary analyses by consulting engineers are for the Wytowno S-1 and Lebork S-1 wells on the adjacent Slawno and Slupsk concessions. The Ordovician-Cambrian interval in the Lebork S-1 well looks better than any other log BNK has seen in the basin, the company said.

The following data from the Lebork S-1 well is only from sidewalls taken in the lower part of the Ordovician and the Alum shale, as the whole core analysis from above these intervals is not yet completed.

The additional core analysis data for the target intervals in the Lebork S-1 well and the final core analysis reports for both wells are expected to be in by the end of August, at which time the log analyses for both wells will be reprocessed with the core data.

In Lebork S-1 porosity in the 47-m thick Ordovician-Cambrian interval averages 4% and ranges from 0.98% to 5.2% and in Wytowno S-1 porosity the 91-m thick Lower Silurian target interval averages 3% and ranges from 1.1% to 4% while porosity in the 40-m thick shallower Lower Silurian interval is 5.6%.

Gas-filled porosity in Lebork S-1 porosity ranges from 0.8% to 3.9% and averages 1.8% of bulk volume in the Ordovician-Cambrian. In Wytowno S-1 the Silurian targets range from 0.3% to 1.6%, averaging 1.1% of bulk volume, with one shallower Silurian interval that has a value of 4.3% of bulk volume.

Lebork S-1  had average desorption values of 40 scf/ton over the Lower Silurian and 268 scf/ton over the 47-m Ordovician-Cambrian interval. The Lower Ordovician-Cambrian shale in Lebork S-1 had intervals as high as 451 scf/ton. Wytowno S-1 had average desorption values of 124 scf/ton in the Lower Silurian target interval and 77 scf/ton in the shallower Lower Silurian interval. For comparative purposes, BNK’s Oklahoma Woodford shale Tishomingo field has average values of 104 scf/ton.

Wytowno S-1 thermal maturity values were estimated from the reflectance of pyrobitumen and the thermal alteration index obtained from palynological (micropaleo) analysis of the drill cuttings, which both equate to an Ro of 1.8 in the Lower Silurian. The TAI for the Lebork S-1 cuttings from the Lower Silurian to Ordovician-Cambrian are also equivalent to an Ro of 1.8, which places the thermal maturity for both wells in the dry gas window.

In Wytowno S-1 the total organic carbon is variable across the Lower Silurian target interval, ranging from 0.1 to 1.3 wt %. The TOC data from the Lebork S-1 well are not yet available, but both the log- calculated values and SEM image analysis values indicate multiple times higher TOCs across the Ordovician-Cambrian shales.

Meanwhile, the Starogard S-1 well on the Starogard concession in Poland, in which the  company has an indirect 26.69% interest, was spud on July 16, 2011, and is drilling at 1,700 m after setting 690 m of surface casing. Another casing string will be set at 2,050 m before drilling to the estimated core point and coring the rest of the well.

Completion of the Lebork S-1 and Wytowno S-1 wells is to start in mid-September. The company is also reviewing the possibility of performing the completion of the Starogard S-1 well in conjunction with the two other wells. Well results and equipment availability will determine the timing.

The company will use bladders to hold the fresh water for fracture stimulating the well instead of digging a large pit.

BNK has secured approval to shoot 740 line-km of 2D seismic of which 407 line-km is on the Saponis and 333 line-km is on the Indiana concessions. In addition, the three Indiana and three Saponis concessions were extended to provide BNK enough time to shoot the seismic before drilling the first three wells in Indiana and the second three wells in Saponis. Seismic shooting is to begin in the fourth quarter of 2011.

Incorporating the micropaleo and high-resolution stratigraphic analysis into the geological picture showed that the Wytowno S-1 well was drilled on a localized paleotopographic high and what was

originally interpreted as Ordovician-Cambrian shales are actually Lower Silurian hot shale intervals.  The intervals in Lebork S-1 have also been revised on the basis of the micropaleo and high-resolution stratigraphic analysis, resulting in slightly different thicknesses of the various intervals.

In addition to the seismic program, BNK has contracted a depth to crystalline basement study. The study will cover a large portion of northeast Poland, fully encompassing the Saponis and Indiana owned acreage. Interpretation of the study is expected to allow the company to better understand general basin geometry, identify subbasins, and locate basement-related faulting. The study is slated for completion by early September 2011.

Related Articles

WAFWA: Aerial survey finds lesser prairie chicken population grew

07/06/2015 A recent range-wide aerial survey found the lesser prairie chicken population rose 25% from 2014 to 2015, the Western Association of Fish & Wil...

Buru awarded onshore Canning licenses

07/06/2015 Buru Energy Ltd., Perth, and Mitsubish Corp. have been granted two production licenses for Ungani oil field in the onshore Canning basin of Western...

Earth model assists Permian asset valuation

07/06/2015 Laredo Petroleum Inc.'s Permian-Garden City asset is an unconventional resource play with more than four potential stacked zones covering a 1,700 s...

China's Yanchi area, western Ordos basin derived from mixed source

07/06/2015 The Yanchi area lies in the west of China's Ordos basin and to the west of the giant Sulige gas field, site of recent breakthroughs in Lower Permia...

Newfoundland, Labrador prepare for deepwater exploration

07/06/2015 Canada-Newfoundland and Labrador Offshore Petroleum Board's (C-NLOPB) most recent call for bids for the Eastern Newfoundland Region is coming to a ...

US House committee leaders send letters to Plains, PHMSA about leak

07/06/2015 US House Energy and Commerce Committee leaders from both parties asked Plains Pipeline LP and the US Pipeline and Hazardous Materials Safety Admini...

EIA: Argentina, China lead shale development outside North America

07/06/2015 Argentina and China have respectively drilled more than 275 and 200 wells targeting shale plays over the past 2 years, providing each country with ...

Judge's order delays BLM's implementation of fracing regs

07/06/2015 A federal district judge in Wyoming temporarily delayed the US Bureau of Land Management's implementation of its recently issued hydraulic fracturi...

Tullow Oil provides production update on Jubilee, other fields

07/01/2015 Tullow Oil PLC reported that gross production for the Jubilee field offshore Ghana averaged 105,000 b/d in this year’s first half, up from 102,000 ...
White Papers

Definitive Guide to Cybersecurity for the Oil & Gas Industry

In the Oil and Gas industry, there is no single adversary and no single threat to the information tech...

UAS Integration for Infrastructure: More than Just Flying

Oil and gas companies recognize the benefits that the use of drones or unmanned aerial systems (UAS) c...

Solutions to Financial Distress Resulting from a Weak Oil and Gas Price Environment

The oil and gas industry is in the midst of a prolonged worldwide downturn in commodity prices. While ...
Sponsored by

2015 Global Engineering Information Management Solutions Competitive Strategy Innovation and Leadership Award

The Frost & Sullivan Best Practices Awards recognise companies in a variety of regional and global...
Sponsored by

Three Tips to Improve Safety in the Oil Field

Working oil fields will always be tough work with inherent risks. There’s no getting around that. Ther...
Sponsored by

Pipeline Integrity: Best Practices to Prevent, Detect, and Mitigate Commodity Releases

Commodity releases can have catastrophic consequences, so ensuring pipeline integrity is crucial for p...
Sponsored by

AVEVA’s Digital Asset Approach - Defining a new era of collaboration in capital projects and asset operations

There is constant, intensive change in the capital projects and asset life cycle management. New chall...
Sponsored by

Transforming the Oil and Gas Industry with EPPM

With budgets in the billions, timelines spanning years, and life cycles extending over decades, oil an...
Sponsored by
Available Webcasts

Better Data, Better Analytics, Better Decisions

When Tue, Oct 27, 2015

The Oil & Gas industry has large amounts of data stored in multiple systems which are purpose built for certain tasks. However, good decisions require insights based upon the data in all of these systems. These systems in turn do not talk to each other. So the process of analyzing data, gaining insights, and making decisions is a slow one and often a flawed one. Good decisions require accurate analytics and accurate analytics require superior/sustainable data quality and governance. This webinar focuses on:

  • The importance of data quality and governance
  • How technological advances are making data quality and governance sustainable in order to get the accurate analytics to make solid decisions.

Please join us for this webcast sponsored by Seven Lakes Technologies and Noah Consulting.


Operating a Sustainable Oil & Gas Supply Chain in North America

When Tue, Oct 20, 2015

Short lead times and unpredictable conditions in the Oil & Gas industry can create costly challenges in supply chains. By implementing a LEAN culture of continuous improvement you can eliminate waste, increase productivity and gain end-to-end visibility leading to a sustainable and well-oiled supply chain.

Please join us for this webcast sponsored by Ryder System, Inc.


On Demand

Leveraging technology to improve safety & reliability

Tue, Sep 22, 2015

Attend this informative webinar to learn more about how to leverage technology to meet the new OSHA standards and protect your employees from the hazards of arc flash explosions.


The Resilient Oilfield in the Internet of Things World

Tue, Sep 22, 2015

As we hear about the hype surrounding the Internet of Things, the oil and gas industry is questioning what is different than what is already being done. What is new?  Using sensors and connecting devices is nothing new to our mode of business and in many ways the industry exemplifies many principles of an industrial internet of things. How does the Internet of Things impact the oil and gas industry?

Prolific instrumentation and automation digitized the industry and has changed the approach to business models calling for a systems led approach.  Resilient Systems have the ability to adapt to changing circumstances while maintaining their central purpose.  A resilient system, such as Maximo, allows an asset intensive organization to leverage connected devices by merging real-time asset information with other critical asset information and using that information to create a more agile organization.  

Join this webcast, sponsored by IBM, to learn how about Internet of Things capabilities and resilient systems are impacting the landscape of the oil and gas industry.


Emerson Micro Motion Videos

Careers at TOTAL

Careers at TOTAL - Videos

More than 600 job openings are now online, watch videos and learn more!


Click Here to Watch

Other Oil & Gas Industry Jobs

Search More Job Listings >>
Stay Connected