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┃＼／┃ 日本堆積学会 メールニュース ◆ 2004年10月7日（第83号）
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安藤＠事務局（茨城大）です
またまた，集会と人事公募の案内です．
最初は小川勇二郎さんからいただいた人事公募情報，その後に，
午前中に配信したAAPGセミナーの講演要旨です．
===============================================================
教官の公募について：筑波大学助教授（構造地質学，テクトニクス）
===============================================================
筑波大学大学院 生命環境科学研究科では、下記の教官公募を行っており
ます。ご応募あるいは関係ある方への周知をお願いします。
＊＊＊＊＊ 公募内容 ＊＊＊＊＊
筑波生命総 04-347号 平成１６年１０月６日
関係機関長 殿
関係 各位
筑波大学大学院 生命環境科学研究科
地球進化科学専攻長 指田 勝男（公印省略）
教官の公募について （依頼）
時下ますますご清栄のこととお喜び申し上げます．
さて，このたび下記の要領により，教員を公募することとなりました．
つきましては，ご多忙中まことに恐縮ですが，貴職関係者への周知方よろ
しくお取りはからい願います．
記
１．職名・人員：大学院生命環境科学研究科 地球進化科学専攻
（地球変動科学分野） 助教授１名
２．採用分野：地球変動科学（構造地質学，テクトニクス）
３．採用予定：決定後可能な限り早い時期（平成１７年４月１日発令を希望）
４．応募資格：
１）博士の学位を有すること
２）地球変動科学分野で，地球変動科学，構造地質学，テクトニクスなどの
教育・研究に従事できる方
５．担当予定：大学院（地球変動科学特論，地球史解析学特別講義，地球史
予測学特別講義など），自然学類（理学部に相当）（構造地質学，同実験
，同演習，地球進化学など）
６．提出書類：以下の書類をＡ４版にて作成すること．
１）履歴書（市販の用紙使用，学位明記，署名捺印，写真貼付）
２）研究業績目録（審査付き論文，著書，その他報告に区分して記載）
３）主要業績５ないし１０編の別刷（原則として最近５ヵ年の業績を含む代表的
なもの５ないし１０編；コピー可）
４）教育・研究活動の概要（2000字程度の自由形式）
５）教育・研究活動に対する抱負（2000字程度の自由形式）
７．応募締切：平成１６年１２月１日（水）必着
８．提出先：〒305-8572つくば市天王台1-1-1
筑波大学大学院生命環境科学研究科
地球進化科学専攻長 指田勝男 宛＊
（＊封書に「応募書類在中」と朱書し，簡易書留で郵送のこと）
９．照会先：筑波大学大学院 生命環境科学研究科
地球進化科学専攻 小川勇二郎
(Tel: 029-853-4307; E-mail: yogawa＠arsia.geo.tsukuba.ac.jp)
以上
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AAPGのDistinguished Lecturer Program（要旨付き）
===============================================================
ＡＡＰＧ会員の皆様
AAPGのDistinguished Lecturer Programを下記の要領で開催します。
日時： 2004年10月20日(水）15：30-18：00
講演者： Dr. Robert (Bo) Tye
（PetroTel, Inc., Senior Geological Advisor )
講演タイトル
（1） "Alluvial Basin Filling Processes and Quantitative
Determination of Channel and Channel-Belt Dimensions
Using Cores and Logs"
（2）“Reservoir Description and Unique Horizontal-Well Designs
Boost Primary and EOR Production from the Fluvio-Deltaic
Prudhoe Bay Field, Alaska”
場所： 国際石油開発（株）14F大会議室
渋谷区恵比寿4-1-18 恵比寿ネオナート
会費： 千円 （懇親会別途千円）
協賛： 石油技術協会 協力： 国際石油（株）
河川チャンネル・デルタのリザーバーキャラクタゼーションに関する話題
で、テキサス、アラスカ、ベネズエラの例が紹介されます。内容に関しては
添付PDFファイルをご覧下さい。
皆様ぜひご参加下さい。
参加はAAPG会員に限りませんので、お近くの興味のある方へお知らせくだ
されば幸いです。
概数把握のため、できましたらご参加予定をJGI星まで返信ください。
（当日参加も受けつけます）
星 一良 AAPG日本支部
----------------------------
地球科学総合研究所
地質部
112-0012
東京都文京区大塚1-5-21
Tel: 03-5978-8048
Fax: 03-5798-8060
E-mail: hoshi＠jgi.co.jp
以下はpdfファイルからテキストにしたものですが，経歴紹介の一部が変換
できませんでしたので，ご容赦下さい．
2004-05 AAPG Distinguished Lecture
Abstract
ROBERT S. (BO) TYE
PetroTel, Inc. Plano, Texas
Funded by the AAPG Foundation
-----------------------------------------------------------
Alluvial Basin Filling Processes and Quantitative Determination of
Channel and Channel-Belt Dimensions Using Cores and Logs
-----------------------------------------------------------
Channel-belt, crevasse-splay, and lacustrine-delta deposits comprise
the most common sand-prone depositional settings in alluvial basins.
Subsidence, sediment supply, and avulsion processes are primary
controls on a basinユs alluvial architecture. Avulsion starts the
process of channel-belt formation, but prior to the development of
a mature channel belt, depositional lows on the floodplain and
lakes must be filled. This is accomplished through crevasse-splay
and lacustrine-delta deposition. Splay and delta geometry and sediment
-distribution patterns are controlled by river-mouth processes,
basin shape, and bathymetry. Thickest splay and deltaic sandstones
occur in linear, dip-elongate and upward-coarsening distributarymouth
bar and levee lobes that are separated by mud-filled channels and
interdistributary troughs. As the channel belt lengthens and widens,
much of the floodplain, crevasse splay, and lacustrine-delta deposits
are reworked and incorporated into the channel belt. Thus, channel
belts are the primary reservoir targets.
An objective in exploration for and development of fluvial reservoirs
is determination of the thickness and width of sandstone-conglomerate
bodies (mainly channelbelt deposits). This problem is addressed
using theoretical, experimental and field studies. The approach
involves: (1) models for the lateral and vertical variation of
lithofacies and petrophysical-log response of river-channel deposits,
with explicit recognition of the different superimposed scales of
strata; (2) distinction between single and superimposed channel
bars, channels and channel belts; and (3) interpretation of maximum
paleochannel depth from the thickness of channel bars and the
thickness of sets of cross strata formed by dunes.
Fluvial reservoirs from the Travis Peak Formation, Texas, were
reinterpreted using this approach. In the original interpretation,
channel-belt width and connectivity of channel-belt sandstone bodies
were overestimated because of over-zealous well-to-well correlation,
and inappropriate use of width/thickness data from supposed analogs.
The value of this new approach to quantifying channel-belt dimensions
and its impact on reservoir characterization and management is
demonstrated with examples from Alaska and Venezuela.
(Robert S. Tye with John S. Bridge)
-----------------------------------------------------------
Reservoir Description and Unique Horizontal-Well Designs Boost Primary
and EOR Production from the Fluvio-Deltaic Prudhoe Bay Field, Alaska
-----------------------------------------------------------
Using horizontal-wells, recompletions, and an unprecedented enhanced-oil
recovery (EOR) process, ARCO Alaska, Inc. capitalized on structural,
stratigraphic, sedimentologic, and fluid-distribution complexities in
the Triassic Ivishak Sandstone of Prudhoe Bay Field, to recover
untapped or bypassed reserves from a fluvio-deltaic reservoir. The
initial stratigraphic characterization of the Prudhoe Bay reservoir
was lithostratigraphically based, and it depicted the reservoir as
tabular sandstone, conglomerate, and mudstone zones encased in
marine shales. A reassessment of the reservoir stratigraphy based on
cores and genetic-stratigraphic correlations depicts fluvial channel
belt and floodplain strata overlying en echelon, offlapping, fluvially
dominated deltaic wedges.
Reservoir-quality rocks occur in fluvial, distributarychannel, and
distributary-mouth bar facies associations. A paleogeographic
reconstruction depicts an alluvial plain crossed by channels that
graded into a delta plain cut by distributary channels that fed
distributary-mouth bars on a broad delta front. Mudstones deposited
following delta-lobe abandonment form laterally extensive flow
barriers between delta lobes. Compartmentalization is most pronounced
distally, where deltaic sandstones are overlain by and pass
laterally into marine shale. Proximally, fluvial and deltaic sandstones
are juxtaposed across erosional contacts, improving reservoir continuity.
This stratigraphic interpretation is corroborated by production and
surveillance data, plus an interference test. Locally, stratigraphy
and poor waterflood performance reflect completions in diachronous
sandstones that originated in separate deltaic lobes. In some cases,
production was increased with recompletions rather than infill
drilling. Nonconventional wells planned and completed with the benefit
of detailed facies-association correlations are currently recovering
millions of barrels of previously bypassed oil.
In a geographically and stratigraphically different part of the field
that is in a mature waterflood-recovery stage, horizontal wells
coupled with a Miscible Injectant Stimulation Treatment (MIST)
process are recovering millions of barrels of incremental EOR oil
from a 150-foot (46 m) thick, high net-to-gross (0.96) succession
of sandstones, pebbly sandstones, and conglomerates with few extensive
shales or other vertical permeability barriers. Embedded in the
coarsest-grained strata are thin beds of open-framework conglomerate
possessing extremely high permeabilities. This process capitalizes
on the existing well-pattern design, coiled-tubing drilling, and
the geologically controlled flow characteristics of the reservoir.
Two lithofacies, mudstone and open-framework conglomerate dominate
fluid flow in this part of the reservoir. In a lateral MIST project,
a horizontal well is drilled from an existing well in a watered-out
pattern. Maximum-sweep efficiency is achieved keeping the wellbore
near the base of the fluvial strata as it arcs between an injector
and outlying producers. Miscible injectant is introduced at the well
toe, forming a gas bulb pushing oil to the producers. After adequate
injection, the perforations are squeezed and the well is reperforated
nearer its heel. By sequentially injecting gas, squeezing perforations,
and re-perforating in a more proximal position, post-waterflood oil is
stripped from the reservoir. Simulations predict incremental EOR of
greater than a million barrels per horizontal well.
Robert S. Tye with Janok P. Bhattacharya, James A. Lorsong, Douglas
G. Knock, Richard A. Levinson, David D Puls, Patrick L. McGuire,
B. A. Watson, and M. M. Maguire
Robert S. (Bo) Tye
Education: 1978 College of Charleston; B.S., Geology
1981 University of South Carolina; M.S., Geology
1986 Louisiana State University; Ph.D., Marine Sciences
1996 University of Alaska; M.S., Env. Qual. Sci.
Experience:
1981-1983 Cities Service Company, Reservoir Geologist
1987-1989 The University of Texas at Austin, Bureau of Economic Geology
, Research Associate
1989-1992 ARCO Exploration and Production Technology, Senior Research
Geologist
1992-1996 ARCO Alaska, Inc., Senior/Staff Geologist
1996-2000 ARCO Exploration Technology and Operations, Principal Research
Geologist
2000-2002 Phillips Petroleum Company, Senior Geological Specialist
2003-Present PetroTel, Inc., Senior Geological Advisor
Awards:
AAPG Wallace E. Pratt Award (Best Paper Published in 2000)
Outstanding Contribution Award, AIOGC, 1991
Outstanding Contribution Award, AOGC, 1991
Outstanding Paper, ARCO Exploration Technical Conference, 1991
ARCO Alaska Exceptional Contribution Award, 1994, 1996
Publications:
Over 30 publications on depositional systems, stratigraphy and
sedimentology, and reservoir characterization. Thirty-five
presentations given at various professional society meetings.
Memberships:
American Association of Petroleum Geologists
SEPM Headquarters and Business Committee
Society of Economic Paleontologists and Mineralogists
International Association of Sedimentologists
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茨城大学理学部地球生命環境科学科内
〒310-8512 水戸市文京2-1-1
TEL: 029-228-8391 (安藤), 8238 (牧野), 8268 (伊藤) FAX: 228-8405
Web site: http://sediment.jp/
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