Pak De,

Getaran gempa tercatat di tiltmeter yang kita pasang di Duri, tapi kecil saja..mirip-mirp getaran truk berat yang lewat di jalan...brrrrrrrruurrr.

Soal wettability yang berubah gara-gara getaran saya nggak setuju. Sebab wetability bonding tergantung factor unsur kimia mineral ( Ca, Si, Mn, Mg etc ) dan ion ( Anionic, Cationic, Amphoteric ) dari sifat minyak atau fluidanya terhadap batuan....untuk merubah bonding wetability ya diubah sifat ionnya tadi....( di produksi biasa disebut surfactant injection )
Mbok digoyang kayak goyang ngebornya Inul yang gak berubah.!

Jadi getaran bisa merubah hubungan antar butir matriks/semen batuannya yang tadinya 'tight" jadi agak loose sand...jadi porosity naik,...perm ya ya bisa naik...maka minyak mengucur..cuuurrrr..atau membuat fracture ( rekahan ) di batuan akhirnya minyak lancar mengalir.....liiirrr.

KA

----- Original Message ----- From: "Rovicky Dwi Putrohari" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Monday, December 18, 2006 10:46 PM
Subject: [iagi-net-l] Gempa 5.7 SR di Sumatra dan Wettability


Banyak rekan-rekan saya di Riau yang merasakan getaran gempa di
Sumatra ini. Saya jadi teringat pengaruh getaran (gempa) yang konon
katanya dipakai/dikembangkan oleh rusia dalam usaha meningkatkan
produksi minyak (enhance recovery)

Nah aku jadi bertanya-tanya .... Apakah rekan-rekan di Chveron PI
merasakan ada pertambahan produksi minyak akibat gempa ini, iya  nggak
ya ?

Wettablity.

Secara mudah, "getaran" akan mengurangi 'addesive bonding' atau
wettability dari minyak maupun air, pada dinding butiran. Memang ada
frekuensi tertentu yang menyebabkan penurunan. wettability ini.
Seandainya saja frekuensinya itu frekuensi rendah sesuai dengan
frekuensi getaran gempa (sekitar 10 Hz), maka akan sangat mungkin
produksi minyak akan melonjak karena gempa.

Tentunya tidak akan sesederhana asal digetarkan namun setiap bonding
selalu sensitif terhadap getaran pada frekuensi tertentu. kalau dalam
Teknik Sipil barangkali mirip dengan yang dikenal dengan 'frekuensi
diri' dari sebuah konstruksi, entah apakah ini juga mirip dengan ini.
Tetapi secara mudahnya setiap benda memilki frekuensi khusus yang
menyebabkan ikut bergetar atau berresonansi.

Resonansi atau ikut bergetarnya ini yang akan mempengaruhi "addesive
bonding" (wettability).

Ah, just lamunan saja
Dalam setiap bencana selalu saja ada makna lain yang menjadikan
munculnya peluang.

rdp

On 12/18/06, Kabul Ahmad <[EMAIL PROTECTED]> wrote:
Gempa dua kali berturut turut jam 4 pagi lewat dan 8.30 pagi terasa kuat di
kota Duri Riau yang biasanya relatif stabil.

KA

----- Original Message -----
From: "budi santoso" <[EMAIL PROTECTED]>
To: <[email protected]>; "Himpunan Ahli Geofisika Indonesia (HAGI)"
<[EMAIL PROTECTED]>
Sent: Monday, December 18, 2006 3:29 PM
Subject: [iagi-net-l] Gempa 5.7 SR di Sumatra


> Gempa di Sumatra:
> 4.39 am, 5.7 magnitude (SR?) pusat gempa(?) 150km SE
> of Sibolga, sementara 4 korban tewas di desa
> Tamiyang(?).
>
> Mohon yang punya info lebih atau konfirmasi terhadap
> berita tersebut?
>
>
> sTJ
>
> --- untungm <[EMAIL PROTECTED]> wrote:
>
>> Bagi yang berminat dan berkempatan datang.
>> M. Untung
>> ----- Original Message -----
>> From: <[EMAIL PROTECTED]>
>> To: <[EMAIL PROTECTED]>
>> Sent: Saturday, December 16, 2006 3:43 AM
>> Subject: Seismic Lithology Workshop 57-60th Editions
>>
>>
>> > >From      Dr Gerald R H Stein
>> >          PAIS Geophysical
>> >
>> > Subject:  Seismic Lithology Workshop Newsletter
>> for 57-60th
>> >          Editions London:Houston:Perth
>> >
>> > For geoscientists deciding where to drill the next
>> well, a systematic
>> > application of stratigraphic inversion and
>> targeted attribute analysis
>> > is essential.
>> >
>> > The Seismic Lithology Workshop is an intensive
>> course dedicated to the
>> > identification of lithology from seismic
>> > and well log analysis. The course has been given
>> > to over 600 attendees worldwide over ten years.
>> >
>> > Please note there is a discount for advanced
>> bookings.
>> >
>> > Australia: 57th Edition
>> >
>> >      Perth
>> >      Hilton Hotel
>> >      February  13-14th 2007
>> >      Perth
>> >      Australia
>> >
>> > Europe: 58th Edition
>> >
>> >      Aberdeen 20-21st February 2007
>> >      Springfield Road
>> >      Aberdeen
>> >      AB15 7AQ
>> >      Scotland
>> >
>> > United States: 59th Edition
>> >
>> >      Houston
>> >      April  9-10th 2007
>> >      Knowledge Development Center
>> >      11200 Richmond Avenue Suite 100
>> >      Houston, TX 77082
>> >
>> > United States: 60th Edition
>> >
>> >      Dallas  April  12-13th 2007
>> >      Hilton Dallas Lincoln Centre
>> >      5410 LBJ Freeway,
>> >      Dallas, Texas, United States 75240-6276
>> >
>> >
>> >
>> > Workshop Goals
>> >
>> > a.. Characterise a reservoir using inversion,
>> attribute analysis and
>> > seismic petrophysics techniques.
>> >
>> > b.. Clearly explain the methodology used to
>> achieve reservoir
>> > characterisation.
>> >
>> > c.. De-mystify the arts of inversion and attribute
>> analysis.
>> >
>> > d.. Consolidate understanding by practical
>> systematic workshop
>> > exercises.
>> >
>> > To reserve a place and simply return this email
>> with your details
>> > including full company Address and phone number.
>> We will then contact
>> > you to confirm.
>> >
>> > We also provide in-house courses on request.
>> Enquiries world-wide may
>> > be made by e-mail or telephone (44) 1920 412089.
>> >
>> > Thanks again for course feedback, and word of
>> mouth recommendations
>> > from previous attendees. Further details of the
>> course are given
>> > below.
>> >
>> >
>> > Dr Gerald R H Stein
>> > PAIS Geophysical
>> > London
>> >
>> >
>> >
>> >
>> >
>> > Course Description: -
>> >
>> > Course/ Workshop Presenters: - Dr. D Marsden & Dr.
>> G Stein.
>> >
>> > The Seismic Lithology Workshop is a two-day course
>> dedicated to the
>> > identification of lithology from seismic, and
>> making particular use of
>> > established techniques:
>> >
>> > STRATIGRAPHIC INVERSION: LFC, Sparse Spike and
>> Combined Techniques.
>> > ATTRIBUTE ANALYSIS: Clustering, PC Analysis and
>> Classification.
>> > WELL LOG ANALYSIS: Xplots, TD Corrections, and
>> Genetic Optimization.
>> >
>> > What this Course will show you: -
>> >
>> > a.. How to prepare data for seismic lithology
>> prediction.
>> > b.. How to identify the pitfalls in your data.
>> > c.. How to extract a stable optimum wavelet.
>> > d.. How to apply trace inversion. (Derive acoustic
>> impedance).
>> > e.. How to derive seismic attributes (40+
>> Attributes).
>> > f.. How to combine seismic attributes and acoustic
>> impedance into
>> > hydrocarbon indicators using the latest
>> classification methods.
>> > g.. How to create porosity cubes from Seismic and
>> Well data, integrated
>> > using techniques based on genetic optimization.
>> >
>> >
>> > Practical workshops illustrate the main lecture
>> topics. A modular
>> > structured approach ensures that we impart genuine
>> understanding of
>> > the subject matter and techniques involved. All
>> Workshop modules use a
>> > data set from the same oil field, revealing the
>> effects of each
>> > analysis process as they are incorporated into a
>> complete model of our
>> > test reservoir.
>> >
>> > The course has had many excellent reviews from its
>> previous attendees.
>> >
>> > Previous attendees include ExxonMobil Exploration
>> Company, BP,
>> > Shell,ChevronTexaco, TotalFinaElf,  Vintage Oil
>> Argentina, Marathon
>> > Oil Co.,Agip, Amerada Hess,BG, Compania Mexicana
>> de Geofisica S.A de
>> > C.V., ConocoPhillips , Deminex,Dominion E&P Inc.,
>> El Paso Production,
>> > Enterprise, "Fugro Geoservices, Inc", Interpretive
>> Processing
>> > Consultants, Kerr-McGee Corporation, Landmark,
>> Lasmo, Maersk,
>> > Nopec,Mol,  Nimir, Occidental Oil & Gas, Paradigm
>> Geophysical, PDO,
>> > Petrolera Ameriven, PDVSA, PGS , Phillips,
>> "Pluspetrol International,
>> > Inc.", Samson
>> > Resources, Schlumberger, Seitel data, Sipetrol,
>> Statoil, Veritas DGC,
>> > Advanced Reservoir Technology,  "AGI Mexicana,
>> S.A: de C.V",
>> > Anadarko, Appache Corporation, Baker Atlas, Cairn,
>> Canadian Petroleum,
>> > CGG,  CTOP and many others.
>> >
>> > Quotable Quotes
>> >
>> > "Best combination of principle component,
>> discriminant analysis and
>> > cluster analysis that I have seen."
>> >
>> > "Gave a nice integrated summary to inversion
>> techniques. "
>> >
>> > "Very good mix of theory and practice. "
>> >
>> > "The emphasis on workshop material is excellent. "
>> >
>> > "The workshop sessions were very useful and helped
>> demonstrate the
>> > principles. "
>> >
>> > "A good opportunity to relate theory and practice
>> through
> === message truncated ===
>
>
> __________________________________________________
> Do You Yahoo!?
> Tired of spam?  Yahoo! Mail has the best spam protection around
> http://mail.yahoo.com
>
> ---------------------------------------------------------------------
> -----  PIT IAGI ke 35 di Pekanbaru, 20-22 November 2006
> -----  detail information in http://pekanbaru2006.iagi.or.id
> ---------------------------------------------------------------------
> To unsubscribe, send email to: iagi-net-unsubscribe[at]iagi.or.id
> To subscribe, send email to: iagi-net-subscribe[at]iagi.or.id
> Visit IAGI Website: http://iagi.or.id
> Pembayaran iuran anggota ditujukan ke:
> Bank Mandiri Cab. Wisma Alia Jakarta
> No. Rek: 123 0085005314
> Atas nama: Ikatan Ahli Geologi Indonesia (IAGI)
> Bank BCA KCP. Manara Mulia
> No. Rekening: 255-1088580
> A/n: Shinta Damayanti
> IAGI-net Archive 1: http://www.mail-archive.com/iagi-net%40iagi.or.id/
> IAGI-net Archive 2: http://groups.yahoo.com/group/iagi
> ---------------------------------------------------------------------
>
>



---------------------------------------------------------------------
-----  PIT IAGI ke 35 di Pekanbaru, 20-22 November 2006
-----  detail information in http://pekanbaru2006.iagi.or.id
---------------------------------------------------------------------
To unsubscribe, send email to: iagi-net-unsubscribe[at]iagi.or.id
To subscribe, send email to: iagi-net-subscribe[at]iagi.or.id
Visit IAGI Website: http://iagi.or.id
Pembayaran iuran anggota ditujukan ke:
Bank Mandiri Cab. Wisma Alia Jakarta
No. Rek: 123 0085005314
Atas nama: Ikatan Ahli Geologi Indonesia (IAGI)
Bank BCA KCP. Manara Mulia
No. Rekening: 255-1088580
A/n: Shinta Damayanti
IAGI-net Archive 1: http://www.mail-archive.com/iagi-net%40iagi.or.id/
IAGI-net Archive 2: http://groups.yahoo.com/group/iagi
---------------------------------------------------------------------




--
http://rovicky.wordpress.com/

---------------------------------------------------------------------
-----  PIT IAGI ke 35 di Pekanbaru, 20-22 November 2006
-----  detail information in http://pekanbaru2006.iagi.or.id
---------------------------------------------------------------------
To unsubscribe, send email to: iagi-net-unsubscribe[at]iagi.or.id
To subscribe, send email to: iagi-net-subscribe[at]iagi.or.id
Visit IAGI Website: http://iagi.or.id
Pembayaran iuran anggota ditujukan ke:
Bank Mandiri Cab. Wisma Alia Jakarta
No. Rek: 123 0085005314
Atas nama: Ikatan Ahli Geologi Indonesia (IAGI)
Bank BCA KCP. Manara Mulia
No. Rekening: 255-1088580
A/n: Shinta Damayanti
IAGI-net Archive 1: http://www.mail-archive.com/iagi-net%40iagi.or.id/
IAGI-net Archive 2: http://groups.yahoo.com/group/iagi
---------------------------------------------------------------------





---------------------------------------------------------------------
-----  PIT IAGI ke 35 di Pekanbaru, 20-22 November 2006
-----  detail information in http://pekanbaru2006.iagi.or.id
---------------------------------------------------------------------
To unsubscribe, send email to: iagi-net-unsubscribe[at]iagi.or.id
To subscribe, send email to: iagi-net-subscribe[at]iagi.or.id
Visit IAGI Website: http://iagi.or.id
Pembayaran iuran anggota ditujukan ke:
Bank Mandiri Cab. Wisma Alia Jakarta
No. Rek: 123 0085005314
Atas nama: Ikatan Ahli Geologi Indonesia (IAGI)
Bank BCA KCP. Manara Mulia
No. Rekening: 255-1088580
A/n: Shinta Damayanti
IAGI-net Archive 1: http://www.mail-archive.com/iagi-net%40iagi.or.id/
IAGI-net Archive 2: http://groups.yahoo.com/group/iagi
---------------------------------------------------------------------

Kirim email ke