Members wishing copies should contact the secretary . A small charge will be made tocover costs.SPONSORSHIP

The PGK thanks the following companies for sponsoring our activities.

AMOCO NETHERLANDS B.V., TNO INSTITUTE OF APPLIED GEOSCIENCE,

Printing costs of this newsletter are paid by TNO Institute of Applied Geoscience.Distribution costs of this newsletter are paid bv Hays Informatiebeheer B.V.

(formerlv trading as ROCKALL Netherlands BV).

1996 PROGRAMMEThe programme of PGK events for 1996 has now been finalised. Please keep reading thenewsletter for extra events or changes to the listed programme.

17-1 Mrs Sheila Doherty The Success Ratio of Prospects Delineated ThroughexSOEKOR Sequence Stratigraphic Analysis - a Case Study of the

Bredasdorp Basin, Offshore South Africa.

22-1 Dag Nummedal Rift Basin Tectonostratigraphy - Examples From the Gulf ofLouisiana State Univ. Suez and North China (Bohai) Basin.

21-2 Bruce Fouke Correlation of Mid-Cretaceous Depositional Cycles on theVU, Amsterdam Russian Craton and the Crimean Peninsula.

20-3 Peter Fearn Combating Zechstein Drilling Problems a Case Study FromLasmo Nederland the Markham Field Area of the S. North Sea.

17-4 Paul de Groot The Future of Geophysical Reservoir Characterisation Mustde Groot-Bril B.V. Be Sought in Geology Not Physics.

15-5 Evert v.d.Graaf Horizontal Drilling-A Geologie Perspective, /^ Shell-SIEP

- I C / >

l-'Jto-JLlWij • Alblas & Dronkert N.E. France ExcursionPGK

19-6 Prof. A.J. Berkhout Improving Predrill Views at ReservoirsLAS, TU-Delft

18-9 Rutger Gras The Petroleum Geology of the Eastern Sirte BasinSchlumberger

16-10 Tony Dore The NE Atlantic Margin - Benefits of an Integrated RegionalStatoil Approach to a Frontier Exploration Area"

20-11 Mark Bently Technical Solutions to Managing Subsurface UbcertaintyShell-SIEP

18-12 Prof Nigel Trewin The S tratigraphy of Malt whisky.Univ of Aberdeen

**

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PETROLEUM GEOLOGISCHE KRINGKONINKLIJK NEDERLANDS GEOLOGISCH EN MUNBOUWKUNDIG GENOOTSCHAP PGKTreasurer: Bert Clever

c/o Wintershall Noordzee BVPO Box 823012508 EH Den Haagphone: 070 - 358 31 06

Bank account: 88 65 82 733 (VSB, Den Haag)Giro account: 40 74 482

ï A -^ ^ *_.' i m..*..*, M.

FORTHCOMING PGK EVENTS

Jan. 17

Jan. 22

Feb. 21

Feb. 21

Mrs Sheila Dohertyex SOEKOR

Secretary: Dr. A. Ewan CampbellTNO Institute of Applied GeoscienceP.O. Box 60122600 JA Delftphone: 015-269 6731home: 070 - 362 03 52fax: 015 - 256 4800

NEWSLETTER

The success ratio of prospects delineated throughsequence stratigraphic analysis - a case study of theBredasdorp Basin, offshore South Africa.

Prof. Dag Nummedal Rift Basin Tectonostratigraphy - Examples from the GulfLousiana State Univ. of Suez and North China (Bohai) Basin.

Exraordinary Lecture PGK/Sed.Kring (See Newsletter)

Dr. Bruce FoukeVU, Amsterdam

Correlation of Mid-Cretaceous Depositional Cycles on theRussian Craton and the Crimean Peninsula.

PGK Annual Meeting & Annual Dinner.

PGK JANUARY MEETINGThe PGK January meeting will be held on WEDNESDAY, January 17, at 17:45 pmand will be preceded by aperitifs from 17:00 pm onwards. The lecture will be held at theKTVI building, Prinsessegracht 23, The Hague. Mrs Sheila Doherty, Formerly of SOEKORwill speak about: "The success ratio of prospects delineated through sequencestratigraphic analysis - a case study of the Bredasdorp Basin, offshore SouthAfrica".

The speaker has provided the following abstract:

In 1988, a study of clastic, post-rift, Cretaceous strata in the BredasdorpBasin was undertaken to develop a sequence-stratigraphic framework that led to thedelineation of hydrocarbon fairways. Hydrocarbon plays are confined to lowstandsystems tracts which have the most favourable stratigraphic trapping and reservoirpotential. The lowstand elements targeted as prospects comprise basin floor fans whichare often deposited in deep-marine channels on type l unconformities, and slope fans andlowstand prograding wedges. No prospects were generaled in the transgressive tractswhich are generally seismically unresolveable or in the highstand tracts which are wel!developed and often sandprone, but lack traps.

During the following four years, boreholes were drilled to evaluate the hydrocarbonpotential of the Valanginian to mid-Albian sequences. Drilling results proved the deep-marine basin floor fans to be the most successful targets. Of the 31 boreholes drilled to

evaluate deepwater fan/channel complexes, 75% intersected the fans as prognosed.Sandstones with good poroperm characteristics were intersected in 75% of these fans,while 6 have commercial hydrocarbon flowrates. Boreholes drilled to test slope fansintersected the fans as predicted, but the sandstones are generally of poorer reservoirquality than the basin floor fans. Drilling results of the lowstand prograding wedges werethe least encouraging. Of the boreholes drilled to test lowstand wedges, only oneintersected shallow-water sediments which consisted mainly of claystone.

The success ratio in the basin floor fan elements of the lowstand system tracts is high andfurther exploration effort is therefore being concentrated on these deep-marinesandstones that can be identified through sequence stratigraphic analysis.

OTHER EVENTS OF INTEREST TO PGK MEMBERSJanuary 29-31 Norsk Petroleumsforening (NPF) 'Hydrocarbon Seals - Importance for Exploration

and Production', Trondheim, Norway. Contact: Karin B. Haugnasss NorwegianPetroleum Society, F.O. Box 1897 VIKA, 0124 Oslo, Norway, Tel. +47 22 43

00 50 FAX +47 22 55 46 30.February 22-24 Prediction in Geology, Vrije Universiteit Amsterdam. For further details please

contact Prof. Dr. Wolfgang Schlager, on +31 20 444 7390 or FAX +31 20 6462457 e-mail schw@geo.vu.nl.

May 2 - 3 Trends in Geowetenschappen, 3e Nederlands Aardwetenschappelijk Cngress,Koningshof, Veldhoven. For more information contact Mrs M.K. van Helden, RijksGeologische Dienst, Postbus 157, 2000 AD Haarlem. Tel +31 23 5 300 285.

June 3-7 EAGE, 58th Conference and Technical Exhibition, Amsterdam. For further detailscontact Eveline Schut, EAGE, Laan van Vollenhove 3039, Postbus 298, 3700 AG,Zeist, FAX +31 30 696 2640. Abstract deadline January 17.

Sept. 23-27 Ist Congress of Balkan GeophysicalSociety, Athens. For further details contactErasmus Horizon Ltd., 34 Vass Georgiou B' Street, 116 35 Athens, Greece, FAX+ 30 725732. Abstract deadline April 30.

December 3 -5 PETEX 96, Surfing The Wave - Using Technology in the 90's, PetroleumExploration Conference and Exhibition, London. For further details please phonethe PESGB office on +44 171 495 6800 or FAX +44 171 495 7808.

THE 1996 ANNUAL MEETINGThe PGK AGM will convene on February 21, at 17.30. Nominations for the 1996 Committee are:

Chairman Dr. H.Dronkert* TU-Delft (M&P)Vice Chairman Drs. L.B. Alblas Amoco NederlandTreasurer Drs. M. Koopmans** Wintershal! BVSecretary Dr. A.E. Campbell*** TNO-IAGCommittee member Drs. G.v.d.Bilt G.A.P.S. Nederland B.V.

* At present Vice Chairman.** The treasurer has served over two years and is not eligible for another year.*** The current secretary is automatically reselected for one more year.

After the annual meeting we will enjoy our annual dinner at the Mangerie, Laan van Roos en DoornSla, about ten minutes walk from KIVI, from 20:15 pm onwards. Those who wish to attend pleasecomplete the form at the end of the newsletter and return it before February 15th to the secretaryaccompanied by a bank or giro cheque to the value of ƒ 50,- made out to Treasurer PGK. Pleaseforward your reservation and payment promptly as we have to advise the restaurant about thenumber of members (and partners) attending.

Our records have been updated up to October 31 1995. Members, whose dues had not beenreceived in one of our accounts by October 31, see '95', or an even a longer string of years printedat the bottom of their labels. All those who have not yet paid, please remit ƒ25 for each year due,into one of the accounts mentioned above AS AP. The members whose labels now show a string ofthree years due will receive a letter cancelling their membership in January 1995. Should youdiscover any mistakes in your label please inform the secretary.

THE 1996 ANNUAL MEETINGThe PGK AGM will convene on February 21, at 17.30. Nominations for the 1996 Committee are:

Chairman Dr. H.Dronkert* TU-Delft (M&P)ViceChairman Drs. L.B. Alblas Amoco NederlandTreasurer Drs. M. Koopmans** Wintershall BVSecretary Dr. A.E. Campbell*** TNO-IAGCommittee meraber Drs. G.v.d.Bilt G.A.P.S. Nederland B.V.

* At present Vice Chairman.** The treasurer has served over two years and is not eligible for another year.*** The current secretary is automatically reselected for one more year.After the annual meeting we will enjoy our annual dinner , venue, price and registration forms willbe included in the January Newsletter.

EXTRAORDINARY LECTUREThe PGK together with the Sedimentologische Kring invites members to an extra lecture given byProfessor Dag Nummedal of Louisiana State University entitled "Rift Basin Tectonostratigraphy -Examples from the Gulf of Suez and Norm China (Bohai) Basin". The lecture will be held at theTNO Zuiderpolder complex at 17:00 on Monday, January 22nd. All those wishing to attend arerequested to fill out the form at the end of this newsletter.

GAS AND PIL UNDER THE NETHERLANDSThank you to all members who partook of the opportunity to order reduced-price copies of thisbook. The orders book is now closed but there will be a further anouncement in the JanuaryNewsletter informing members of where and when their books can be uplifted.

AUTUMN EXCURSION REPORTOur thanks go to Wim de Gaans and Thomas de Groot and the members who turned up to whatwas an enjoyable trip to the RGD. Those members still owing should pay dfl 15 to one of theaccounts shown at the beginning of the Newsletter. A group photo was taken and may appear in alater edition of this newsletter. Requests for copies should be addressed to the secretary.

TIES. TIES AND MORE TIESAt present the PGK has no ties in stock. More ties with the original design have been ordered, inaddition to a new design presented top the members at the November meeting. Both designs will beavailable in 10 weeks time.

PETROLEUM GEOLOGISCHE KRINGKONNKIJJKNEraatl^NDS^ PGK

PGK ANNUAL GENERAL MEETING21 February 1996

17:15

AGENDA1. Opening J o ha n Gelderloos2. Chairman's Review of 1995 activities Johan Gelderloos3. Secretary's Report Ewan Campbell4. Treasurer's Report Bert Clever

5. 1995 Auditing Committee's Report Evert v.d.Graaf

& Ab v. Adrichem-Boogaert6. Selection of 1996 Auditing Committee Proposed??

7. Discharge of 1995 Committee and instalation of 1996 committee.

Nominations for the 1996 Committee are as follows:Chairman Dr. H.Dronkert* TU-Delft (M&P)Vice Chairman Drs. L.D. Alblas Amoco NetherlandsTreasurer Drs. M. Koopmans** Wintershall BVSecretary Dr. A.E. Campbell*** TNO-IAGCommittee member Drs. G.v.d.Bilt G.A.P.S. Nederland B.V.

* At present Vice Chairman.** The treasurer has served over two years and is not eligible for another year.*** The current secretary is automatically reselected for one more year.

8. Proposed program for 1995 Hans Dronkert9. Increase in membership dues for 1997 and Hans Dronkert

late dues payments.

10. Any Other Business

11. Close of Meeting

18:30 Lecture by Dr. Brouce Fouke, Formerly of the Vrije Universiteit Amsterdamwill speak about: "Correlation of Mid-Cretaceous Depositional Cycles on theRussian Craton and the Crimean Peninsula".

20:15 Annual Dinner at Restraunt Julien, Vos inTuinstraat 2a, a 10 minute walkfrom the KIVI building. Those who have paid by bank or giro or sent the secretary ortreasurer a cheque and thus put their names on the list for the Annual Dinner areinvited to take a short walk to the restraunt. Upon entering the restraunt your namewill be ticked off the list by the treasurer, those members from whom payment hasnot been received may pay on the spot.