bukan banyak maunya ... dia pragmatis .... ngambil kejadian sehari hari ...
taroklah kasus mahakam ...kan karbonate cuma penggangu saja ...reservoir
tetap sand yang diapit sama shale shale ....
eh itu pertanyaan kemaren kok nggak ada yang jwab ya ... memang ada gitu
wbm yang dinding sumurnya smooth ?
|---------+---------------------------->
| | "Arief Budiman" |
| | <[EMAIL PROTECTED]|
| | .com> |
| | |
| | 19/06/2006 04:45 |
| | PM |
| | Please respond to|
| | iagi-net |
| | |
|---------+---------------------------->
>--------------------------------------------------------------------------------------------------------------------------------------------------|
|
|
| To: <[email protected]>
|
| cc:
|
| Subject: RE: [iagi-net-l] Mengebor karbonat
|
>--------------------------------------------------------------------------------------------------------------------------------------------------|
Banyak maunya nih pak Kumis,
Prinsipnya ya itunglah technical & economical feasibilitynya
Swelling clay atau collaps clay itu kan umumnya di depth yg dangkal jadi yg
dibawah karbonat gak masalah kan? sikat aja pake wbm, asal mud propertinya
dijaga (terutama kalau hi temp) agar lobang tidak rusak, shg logging
hasilnya ok.
A R I E F B U D I M A N
Pertamina - Eksplorasi Sumatra
Phone : (021) 350 2150 ext.1782
Mobile : 0813 1770 4257 / (021) 70 23 73 63
-----Original Message-----
From: Amir Al Amin [mailto:[EMAIL PROTECTED]
Sent: Monday, June 19, 2006 2:53 PM
To: [email protected]
Subject: Re: [iagi-net-l] Mengebor karbonat
Itu kalau targetnya cuma satu interval carbonate reservoir.
Tapi kalau juga pengin ambil sandstone di atas / dibawahnya.
Sementara juga ada shale yang tebal-tebal.
Ya...repot juga ya.....
On 6/19/06, Arief Budiman <[EMAIL PROTECTED]> wrote:
> Ada mas,
> Itu yg harus diperhitungkan.
>
> Karena itu kalau kita sudah pake obm di clay/shale formation (obm handal
untuk mengatasi clay problem eg.: swelling, collaps), dan kemudian kita
akan ganti dg wbm ketika masuk karbonat, maka mud swap kita lakukan setelah
set casing on bottom of shale/clay formation sebelum masuk karbonat.
>
>
>
> A R I E F B U D I M A N
> Pertamina - Eksplorasi Sumatra
> Phone : (021) 350 2150 ext.1782
> Mobile : 0813 1770 4257 / (021) 70 23 73 63
>
>
> -----Original Message-----
> From: Ismed Mahmud [mailto:[EMAIL PROTECTED]
> Sent: Monday, June 19, 2006 2:34 PM
> To: [email protected]
> Subject: Re: [iagi-net-l] Mengebor karbonat
>
> Sekedar pengin tahu saja
> Itu mud kalau diganti-ganti dari OBM ke WBM,apa nantinya tidak ada
problem
> 'swelling clay'?
>
> On 6/19/06, Arief Budiman <[EMAIL PROTECTED]> wrote:
> >
> > Riza yg baik,
> >
> > Boleh aja kok mud digonta-ganti obm-wbm vv.
> > Memasuki karbonat dan akan bermain dg loss circ, sebaiknya pake wbm
saja
> > karena lebih murah dan obm di loss circ carbonate gak punya advantage
lebih
> > dari wbm.
> >
> >
> >
> > A R I E F B U D I M A N
> > Pertamina - Eksplorasi Sumatra
> > Phone : (021) 350 2150 ext.1782
> > Mobile : 0813 1770 4257 / (021) 70 23 73 63
> >
> >
> > -----Original Message-----
> > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> > Sent: Monday, June 19, 2006 10:31 AM
> > To: [email protected]
> > Subject: RE: [iagi-net-l] Mengebor karbonat
> >
> > Dari kemaren kok nggak ada yang jawab sih ...
> > Arief deh yang jawab ... boleh nggak sih mud digonta ganti gitu ...dari
> > oil
> > base mud kemudian digelontor pake air laut .....
> >
> >
> >
> > |---------+---------------------------->
> > | | "Arief Budiman" |
> > | | <[EMAIL PROTECTED]|
> > | | .com> |
> > | | |
> > | | 19/06/2006 09:17 |
> > | | AM |
> > | | Please respond to|
> > | | iagi-net |
> > | | |
> > |---------+---------------------------->
> >
> >
>--------------------------------------------------------------------------------------------------------------------------------------------------|
> >
> > |
|
> > | To: <[email protected]
> > >
|
> > |
> > cc:
|
> > | Subject: RE: [iagi-net-l] Mengebor
> > karbonat
> > |
> >
> >
>--------------------------------------------------------------------------------------------------------------------------------------------------|
> >
> >
> >
> >
> > Amir,
> > Teknis memasuki karbonat tergantung karekter karbonat itu dan lithology
> > batuan sebelumnya.
> >
> > Biasanya yg bikin loss circulation itu reef formation.
> > Karakter reef juga macem2, ada yg baru di-cucuk dikit udah loss, ada yg
> > sampe 10m tidak bergeming. Kalau baru di-cucuk dikit udah loss emang
> > ngerepotin. Kalau ini yg ada maka deteksi terbaik dari ROP, tapi hati2
> > juga biasanya di loss zone ROP juga lumayan cepet.
> >
> > Lithology di atas reef juga macem2, ada yg diawali dg sisipan limestone
> > (bisa mencapai ketebalan 5m-an) di dalam high press shale. Kalau ini
yg
> > ada maka repot kalau begitu ketemu lst, langsung turunkan MW, bisa2
kita
> > malah dapet kick di bawah lst tsb.
> >
> > Kalau sebelum masuk loss zone carbonate diawali dg formasi sisipan lst
dai
> > dalam high press shale dan (syukur2) lossnya kira2 5-10m di bawah top
> > reef,
> > maka set casing 5m-an di bawah top reef, setelah yakin kita di dalam
reef
> > (gak akan ketemu lagi high press shale).
> >
> > Mengatasi loss circ?
> > Prosedur biasa, tergantung seberapa besar lossnya
> > - bisa dng ngurangi pump rates (pump press berkurang, ecd berkurang)
> > - bisa dg LCM
> > kedua langkah di atas dilakukan sambil reduce MW (kalau perlu air
> > sungai/laut yg digelontorkan ke dalam lobang)
> > A R I E F B U D I M A N
> > Pertamina - Eksplorasi Sumatra
> > Phone : (021) 350 2150 ext.1782
> > Mobile : 0813 1770 4257 / (021) 70 23 73 63
> >
> >
> > -----Original Message-----
> > From: Amir Al Amin [mailto:[EMAIL PROTECTED]
> > Sent: Friday, June 16, 2006 11:20 AM
> > To: [email protected]
> > Subject: Re: [iagi-net-l] Mengebor karbonat
> >
> > Apa yang dilakukan dengan loss circulation nya?
> > Pump LCM saja continue drilling?
> > Apa musti menurunkan MW?
> >
> > thanks,
> >
> > On 6/16/06, Syaiful Jazan <[EMAIL PROTECTED]> wrote:
> > > Dikit masukan,
> > >
> > > Dari pengalaman saya yang pernah dirigsite,setelah memotong carbonat
5
> > ft
> > saya minta drillernya untuk cirkulasi dulu sampai lack timenya dan
check
> > gas detectornya dulu baru lanjutin ngebornya,biasanya perubahan dari
shale
> > layer ke carbonat umumnya ada loss circullasi dan gas.
> > >
> > > Ini memang akan ada keberatan dari pihak rig.
> > >
> > > Semua itu dari beberapa lapangan pengeboran di S.Sumatra dan Jawa
> > tengah.
> > >
> > >
> > > Terima kasih.
> > >
> > > SJN
> > >
> > > -----Original Message-----
> > > From: Amir Al Amin [mailto:[EMAIL PROTECTED]
> > > Sent: Friday, June 16, 2006 10:13 AM
> > > To: [email protected]
> > > Subject: [iagi-net-l] Mengebor karbonat
> > >
> > >
> > > Kalau ada yang punya banyak pengalaman mengebor di karbonat,
> > > mungkin bisa share pengalaman.
> > >
> > > Apa yang musti diperhatikan dalam pengeboran di karbonat?
> > >
> > > Bagaimana strategi setting casingnya? Apakah set casing sebelum masuk
> > karbonat,
> > > kemudian . turunkan MW dan ganti dengan water base mud?
> > >
> > > Apakah (selalu) menggunakan water base mud?
> > >
> > > Bagaimana picking pressure point di karbonat?
> > >
> > >
> > > Sebelumnya , terima kasih atas ilmunya..
> > >
> > >
> > > Salam...
> > >
> > >
> > > --
> > > ***********************************
> > > Amir Al Amin
> > > Operation/ Wellsite Geologist
> > > (62)811592902
> > > amir13120[at]yahoo.com
> > > amir.al.amin[at]gmail.com
> > > ************************************
> > >
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> > --
> > ***********************************
> > Amir Al Amin
> > Operation/ Wellsite Geologist
> > (62)811592902
> > amir13120[at]yahoo.com
> > amir.al.amin[at]gmail.com
> > ************************************
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--
***********************************
Amir Al Amin
Operation/ Wellsite Geologist
(62)811592902
amir13120[at]yahoo.com
amir.al.amin[at]gmail.com
************************************
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