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-----Original Message-----
From: "Yanto R. Sumantri" <yrs_...@yahoo.com>
Date: Fri, 29 Jun 2012 21:05:55 
To: iagi-net@iagi.or.id<iagi-net@iagi.or.id>
Reply-To: <iagi-net@iagi.or.id>
Subject: Re: [iagi-net-l] Shale gas news

Wikan

Kalau begitu apakah  (secara general) shale yang erumur Paleozoiicum akan 
menyebabkan sifat Brittle dari shale-nya , sehingga cocok untuk penghasil shale 
gas ?
Atau kalau pertanyaannya dibalik:" Apakah Tertiary shale di Indonesia masih 
merupakan / cocok untuk penghasil shale gas ?
Pertanyaan logis kan .

si Abah 


________________________________
 From: "wikanwindra...@yahoo.com" <wikanwindra...@yahoo.com>
To: iagi-net@iagi.or.id 
Sent: Friday, June 29, 2012 10:07 PM
Subject: Re: [iagi-net-l] Shale gas news
 

Pak Yanto,

Dalam mineralogi mineral lempung shale gas perlu diperhatikan juga proses 
diagenesis yang terjadi, misalkan akibat proses burial.

Swelling type clay mineral dapat berubah menjadi tipe yang lebih stabil, 
sehingga dapat meningkatkan kegetasan (brittleness) dari batuan shale.

Kemudian proses diagenesis yang lain seperti penggantian (replacement) dari 
mineral lempung menjadi kalsit/siderit juga meningkatkan kegetasan.

Tetapi selain kegetasan, parameter geomekanik (stress dan moduli) juga menjadi 
faktor untuk pemilihan interval, orientasi, dan desain perekahan.

Salam
Wikan
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________________________________

From:  "Yanto R. Sumantri" <yrs_...@yahoo.com> 
Date: Mon, 25 Jun 2012 21:16:26 -0700 (PDT)
To: iagi-net@iagi.or.id<iagi-net@iagi.or.id>
ReplyTo:  <iagi-net@iagi.or.id> 
Subject: Re: [iagi-net-l] Shale gas news

Rus

Ok , tks pencerahannya .
Jadi sifat "britleness" sangat menentukan , dilain fihak sifat fisika ini 
sangat dipengaruhi oleh mineral content-nya , dan mineral content ditentukan 
oleh lingkungan pengendapan .
Jadi apakah lingkungan pengendapan shale lapisan Tersier Indonesia memenuhi 
syarat syarat diatas ???

Pertanyaan kedua , apakah volume shale , kalau itu cocok degan syarat shale gas 
cukup besar ?sebagaimana Cekungan Cekungan Paleozoicum di USA ?

Pertanyaan terakhir : Siapa yang akan menjadi "leading edge" untuk meneliti ini 
semua ???
Rasanya sih kalau Pertamina atau perusahaan minyak ndak cocok lah , bagaimana 
peran Badan Geologi dan "Lemigas" ????

Rasanya akan berdosa kita , kalau kita meniupkan "angin sorga" , tetapi pada 
kenyataannya ternyata hanya "angin dingin" . seperti CBM , yang ndak tahu apa 
saja aktifitasnya ,
Padahal Blok Blok CBM sudah laku keras sampai habis daerah daerah itu ditutupi 
oleh Blok CBM.

si Abah





________________________________
 From: Ruskamto Soeripto <rsoeri...@yahoo.com>
To: iagi-net@iagi.or.id 
Sent: Monday, June 25, 2012 5:00 PM
Subject: RE: [iagi-net-l] Shale gas news
 

 
Abah,
Sepanjang pengetahuan saya shale gas tidak selalu methan,
tergantung sejarah maturity dan type karogen dari sourcenya Pak.
Yang membedakan kondisi arid/semi arid region adalah terbentuknya
mineral high saline/evaporite evironment seperti dolomite anhydrite kemungkinan
juga silika bercampur dan interkalasi dengan organic rich shale.  Sehingga
source rock bersifat brittle, mudah dilakukan fract secara efektif.   Kondisi 
lingkungan
tsb sangat bervariasi, memungkinkan terjadinya local depo-pod yang sangat kaya
mengandungi TOC sampai 3-4%, sehingga ada area dan layer atau “sweet spot” yang
ideal memenuhi Kriteria sebagai Shale Gas.  Berbeda dengan sistem lacustrine
dan tropical, kondisinya selalu penuh air dan hyposline clay particles dan 
organic
mattersnya (algae/plankton) terkubur bersamaan  “hampir” merata di semua bagian
danau, sehingga jarang ditemukan “sweet spot”.  Kalau TOCnya 1-2% dan yang 
sisanya
adalah clay dan silt particle pertanyaannya adalah apakah brittlenessnya bisa
meet criteria untuk dilakukan fracturing secara efektif ??    Saya kira itu
yang sedang didiskusikan oleh Pak Naslin, Pak Anggoro dkk,  yang penting 
kriteria
TOC cut off atau brittleness dari shale tersebut.   Mungkin bapak-bapak bisa
menambahkan..
Salam Ruskamto 1061
 
 
 
 
From:Yanto R. Sumantri
[mailto:yrs_...@yahoo.com] 
Sent: 25 Juni 2012 9:52
To: iagi-net@iagi.or.id
Subject: Re: [iagi-net-l] Shale gas news
 
Pak Rus
 
Secara fisik dan mineralogi apakah perbedaan anatar deep sea shale
dengan hale yang dosebutkan yg doiendapkan pada semi arid /sabhka/ restricted
env ? Apa pengaruhnya untuk kandungan gas methane ?
 
si Abah
 

________________________________
 
From:Ruskamto
<rsoeri...@yahoo.com>
To: iagi-net@iagi.or.id 
Sent: Monday, June 25, 2012 7:19 AM
Subject: Re: [iagi-net-l] Shale gas news


Saya
pernah sedikit sharing dimaillist, bahwa umumnya bahwa shale gas yang sukses di
US adalah mid Paleozoic intracratonic semi-arid, restrictric marine hingga
sabkha. Sweetspot organic rich shale bercampur authigenic/evaporite mineral spt
dolomite, anhydrite dll (CMIIW). Kondisi dep env. yang mendukung brittleness
dan fractability dari shale gas tsb. Sukses story untuk Mezosoic(Jurassic
Pre-Rift) juga belum terdengar.. Sekedar meramaikan diskusi Pak.
RUS 1061

________________________________
 
From: Anggoro Dradjat <adradjat....@gmail.com> 
Date: Sun, 24 Jun 2012 19:29:53 +0700
To: <iagi-net@iagi.or.id>
ReplyTo: <iagi-net@iagi.or.id> 
Subject: Re: [iagi-net-l] Shale gas news
 
Nama cekungan yang di Polandia  itu apa yaa? shale di
formasi apa? kalau ngak salah yang di Amerika itu kebanyakan berada di Intra
Craton Basin dan dari lingkungan pengedapan Lacustrin,
Kalau yang di Amerika seperti yang dipresentasikan Pak Naslin di UGM,
horizontal layeringnya terlihat jelas  adanya Vertikal Transfer Isotropic
yang menggambarkan perbedaan cepat rambat gelombang P secara vertikal,
perubahan TOC dari shale  juga tercermin dari sonic resistivity DlogR.
Wah kalau abu-abu isotropic dong, sedikit organiknya  dan ngak fracable.
Mungkin lokasinya dipilih dari sweet spot seismic? Tapi seharusnya kan dilihat
dahulu dari data sumur yang ada? apakah sweet spot itu mengambarkan zona
resistivitas yang tinggi dan zona anisotropi dari shale.
Kemungkinan yang lain adalah belum ada data sumur, jadi explorasi banget buat
shale?
Atau operatornya dari negara dengan kekuatan militer terbesar di dunia tapi
ngak pernah menang perang...heee...heeee


Salam
Anggoro Dradjat


On Sun,
Jun 24, 2012 at 6:04 PM, nyoto - ke-el <ssoena...@gmail.com> wrote:
Apakah
itu berarti operatornya tertipu atau ditipu atau salah interpretasi sebelumnya
sehingga mengexecute project tsb ? Rasa2nya operator sebesar EM itu dg jumlah
PhD nya yg sampai 600 (email cak Avi), tidak mungkin deh. Atau ada info2 lain ?
 
Wass,
nyoto 
On Sun,
Jun 24, 2012 at 3:49 PM, naslin lainda <nas...@rediffmail.com>
wrote:
Tadi saya
barusan ngobrol ama teman yg terlibat di eksplorasi shale gas di polandia ini.
Katanya TOC nya rendah dibawah 1%. Dari foto core nya warnanya abu2, bukan
seperti black shale yg di US. Jadi kayaknya bukan organic rich shale yg mereka
dapatkan.



Naslin


From: "rakhmadi avianto"rakhmadi.avia...@gmail.com
Sent:Wed, 20 Jun 2012 12:17:44 +0530
To: iagi-net@iagi.or.id
Subject: Re: [iagi-net-l] Shale gas news 

Dari awal aku memang sudah curiga, mungkin ngga ya Shale Gas Exploration, dg
exitnya EM dari Poland saya kira bukan hal yg main2. Saya yg alumnus EM merasa
bahwa EM tidak pernah main2 dalam research di Houston setahu saya waktu di sana
ada 600an lebih PHD yg kerja di Lab yg diambil dari lulusan hampir seluruh
dunia dg GPA yg mendekati 4 yg diterima artinya lulusan Top of the nudge lah

> 

>Untuk Indonesia, mungkin tidak semua shale punya potential jadi Shale Gas,
ini yg belum di evaluasi, belum apa2 koq ujuk2 udah sekian TCF emang dari mana
dan dasarnya apa?

>

>Ingat RDP waktu jadi panelis di gas hydrate, acara Pertamina di Kempinski
Hotel, RDP mengusulkan harus ada Pilot Project dari Zero ke Hero, artinya
research yg ter-integrasi, ada G&G, ada drilling, dll krn menyangkut
fracturing dimana ada usaha dari shale yg nature-nya impermeable menjadi
permeable, tentu tidak mudah dan tentu perlu dedikasi yg tinggi dalam research
ini.

> 

>Salam,

>Avi NPA 06666

>Nomor cantik

>

> 
On Tue,
Jun 19, 2012 at 4:38 PM, Fatrial Bahesti <bahe...@gmail.com> wrote:

> 
Mudah2an shale exit tidak terjadi di Indonesia, melainkan
tetap exist for shale gas exploration..

>
ExxonMobil in Poland
shale exit
By
Kathrine Schmidt and news wires 
 18
June 2012 18:00 GMT 
Following
two disappointing test wells in January, ExxonMobil has made the decision to
call off further exploration there, a spokesman said Monday. 
"There
have been no demonstrated sustained commercial hydrocarbon flow rates in our
two wells in the Lublin and Podlasie basins," ExxonMobil spokesman Patrick
McGinn told Upstream in an email.
"We
do not have additional drilling plans in Poland."
The
supermajor's chief executive Rex Tillerson in March alluded to some of the
technical challenges of drilling in rock formations that had initially held
high hopes for unconventional production.
The US
Energy Information Administration has pegged Poland as having among the largest
shale reserves in Europe.
Nonetheless,
ExxonMobil chief executive Rex Tillerson spoke to the technical difficulties
there in a New York meeting with analysts in March.
“Some of
the shales don’t respond as well to hydraulic fracturing,” the news wire quoted
Tillerson as saying during a meeting with reporters after his presentation to
analysts. “It’s going to take research and time in the lab to understand that.”
Reuters
said that a government report in March slashed estimates of Poland's shale gas
reserves to 346 billion to 768 billion cubic meters, or about one-tenth of
previous estimates, denting hopes for an energy source that could play a key
role in weaning Europe off Russian gas.
Poland
has granted 112 shale exploration licences to ExxonMobil, Chevron and other
firms, even as some countries, including France and Bulgaria, have banned shale
exploration pending further environmental studies.
The Poles
are keen to wean themselves off their heavy reliance on coal and imported
Russian gas, partly due to environmental commitments they face as a European
Union member nation.
"ExxonMobil
realised that commercial extraction was not possible with currently available
technology. This is a general problem in Poland that shale rocks are too tight
to allow extraction," an industry source told the news wire, asking not to
be identified.
Abundant
shale gas production in Poland poses a potential threat to Russia's supremacy
in Europe, where it supplies a quarter of the gas used in the EU.
Yet
Russian gas export monopoly Gazprom has repeatedly played down the threat and
on Monday Sergei Komlev, head of contract structuring and price formation at
Gazprom Export, told a conference in London that Polish gas would struggle to
achieve the low prices of US shale rivals.
"In
Poland the price for shale gas will be above $15 per million British thermal
units, over three times than in the US where prices will rise to $5-10 (from a
current $2.50) once they export gas," Komlev said.
Last
Wednesday, the government abruptly called off a presentation of a legal 
framework
for the development of shale gas resources, disappointing industry players
eager for more clarity before committing further to investing in the sector.
"If
this draft was published and ExxonMobil later declared it was leaving the
country, it would most likely have been a disaster in terms of the country's
image," said Piotr Spaczynski, partner at law firm Spaczynski, Szczepaniak
& Wspolnicy, which advises foreign oil companies investing in Polish shale.
The
government now plans to unveil the draft law by the end of the month, and has
said it will cover exploration and extraction of oil and gas from both
conventional and unconventional sources, including taxation, licensing and
environmental issues.
"If
I were the government, I would scrap all drafts and let companies work, or
publish a draft supporting exploration and not one directed at excessive
taxation," Spaczynski said.
Poland
had high hopes for shale after a study by the US Energy Information Association
in 2011 estimated Polish reserves at 5.3 trillion cubic metres, enough to cover
domestic demand for some 300 years.
The
government's study in March slashed estimates for recoverable shale gas
reserves at 346 to 768 billion cubic metres.
Despite
ExxonMobil, the world's most valuable energy company, to deciding to scrap
exploration, other firms said they remained committed.
"(Our
company) continues to remain extremely optimistic about the outlook for Polish
shale gas," said John Buggenhaggen, exploration director at UK-listed San
Leon Energy.


> 
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