Rachmat Sudibjo
Unknown Affiliation

Published : 5 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 5 Documents
Search

ANALISIS PERENCANAAN PENGASAMAN SUMUR PADA SUMUR JRR-2 DAN JRR-4 DILAPANGAN Y Mety Anisa; Rachmat Sudibjo
PROSIDING SEMINAR NASIONAL CENDEKIAWAN Prosiding Seminar Nasional Cendekiawan 2015 Buku II
Publisher : Lembaga Penelitian Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/semnas.v0i0.146

Abstract

Kerusakan formasi disini menunjuk pada suatu daerah didekat lubang sumur yang mengalamipenurunan permeabilitas.Biasanya daerah ini hanya beberapa inch dari lubang sumur, tetapikadang-kadang dapat meluas sampai beberapa feet. Dalam penelitian kali ini akan dilakukansebuah metode stimulasi untuk meningkatkan kembali produktivitas maupun permeabilitas darizona tersebut. Stimulasi merupakan pekerjaan ulang menyangkut tentang perubahan sifatformasi dengan menambahkan unsur-unsur tertentu atau material lain kedalam formasi gunamemperbaiki adanya well damage. Metode stimulasi dapat dibedakan menjadi dua yaitu acidizingdan hydraulic fracturing. Pada penelitian ini pengasaman dilakukan pada batuan karbonat(limestone).Mekanisme pengasaman antara batupasir dengan batu karbonat adalah berbeda.Secara prinsip perbedaannya adalah laju reaksi asam pada batuan karbonat lebih cepatdibandingkan dengan laju reaksi asam dengan mineral batu pasir. Beberapa metoda untukmengevaluasi suatu keberhasilan pengasaman, yaitu dengan adanya kenaikan laju produksiharian (q), perbaikan skin effect (S), perbaikan permeabilitas (K), dan kurva IPR.
RETROFIT GAS LIFT A PRACTICAL SOLUTION TO INCREASE PRODUCTION Zikrina Khairun Nissa; Rachmat Sudibjo; Kartika .
PROSIDING SEMINAR NASIONAL CENDEKIAWAN Prosiding Seminar Nasional Cendekiawan 2015 Buku II
Publisher : Lembaga Penelitian Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/semnas.v0i0.192

Abstract

The purpose of this final assignment is to introduce an alternative new method of unconventionalgas lift which also the first implementation done in Indonesia by ConocoPhillips Indonesia on theirwells in North Belut, Natuna. though, artificial-lift technology is well established, alternativemethods or new developments continue to play a role in solving problems and meeting productionchallenges. This final assignment will also describe the specific and detailed systems of thismethod, so hopefully the wells with this method could produce to its fully potential.
SQUEEZE CEMENTING OPERATION TO CONTROL WATER PRODUCTION ON WELL OKTA-36 OF FIELD OKTA, EAST JAVA Aldo Fadhillah Abraham; Rachmat Sudibjo; Andry Prima
PROSIDING SEMINAR NASIONAL CENDEKIAWAN Prosiding Seminar Nasional Cendekiawan 2015 Buku I
Publisher : Lembaga Penelitian Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/semnas.v0i0.217

Abstract

This thesis mainly discuss about workover (Squeeze Cementing) evaluation Activity in OKTA-36 well of OKTA field, East Java. The choice to did a workover activity in this well was because the oil and gas production for this particular carbonate well has been depleted. The cause of this problem was the watering problem near wellbore as the problem was found by using the Chan’s Diagnostics. Chan’s diagnostics is one of a method to determine the watering problem by comparing days to the existing production data. To increase the oil and gas productivity of this well, the justification was to close the old perforation interval of 6300ft – 6330ft MD by squeezing cement activity and then move the perforation interval to 6195ft – 6205ft MD and 6220ft – 6230ft MD. To fix the wellbore problem caused by water, the interval of 6260ft – 6262ft MD was also squeezed. The choice of 6260ft -6262ft MD was based on the tightness of the formation because of the total loss characteristics of the well. The result shows that the workover activity was a success because of the massive increase in oil and gas productivity. The numbers for the production performance analysis after workover activities are the WHP of 925 psi, WHT of 122o F, FLP 280 psi, Choke 30/64”, oil production 1242 BOPD, Water Cut 0% and Gas Production 0.950 MMSCFD
INJEKSI POLIMER DENGAN PENGARUH JENIS POLIMER,KONSENTRASI DAN SALINITAS BRINE PADA RECOVERY FACTOR MINYAK (Laboratorium Study) Arif Eka Rahmanto; Rachmat Sudibjo; Sugiatmo Kasmungin
PROSIDING SEMINAR NASIONAL CENDEKIAWAN Prosiding Seminar Nasional Cendekiawan 2017 Buku I
Publisher : Lembaga Penelitian Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/semnas.v0i0.2130

Abstract

Dengan permintaan energy semakin meningkat terutama energy fosill fuel ( oil &gas), maka sangat penting untuk meningkatkan recovery factor dan gas terutama padafase tertiary ( EOR) . Injeksi polimer merupakan salah satu dari bagian chemical floodinginjection( EOR) dapat meningkatkan nilai recovery factor , polimer yang digunakanadalah sintetsis ( add cross) dan biopolymer ( XC-P), Uji yang dilakukan adalah uji larutan( rheology) dan juga uji fisik batuan dari hasil uji tersebut baru dapat dilakukan coreflooding metode untuk mengetahui nilai Rf. Hasil yang didapat dari core floodingpenambahan polimer yang paling baik adalah larutan G4 dengan core sintetis T2, denganniali Rf dari hasil injeksi polimer 0.26 (26 %), mobility ratio 0.25853, XC-P ( G4) memiliikikestabilan terhadap kenaikan salinitas terutama pada salinitas 15.000 ppm. Untuk coreproperties T2 memiliki porositas 44%, Ka brine 2.196624 mD, Ka. Polimer 0.926591 Md
Field Case: Application of Polyamine Based Mud System to Drill Kintom Formation in Sulawesi and Comparison to Conventional KCl-Polymer Mud System Dominico Alphan Setyanto; Rachmat Sudibjo; Abdul Hamid
Journal of Earth Energy Science, Engineering, and Technology Vol. 1 No. 2 (2018): JEESET-VOL.1-NO.2-2018
Publisher : Penerbitan Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (367.647 KB) | DOI: 10.25105/jeeset.v1i2.3941

Abstract

Drilling mud has a vital role in onshore or offshore oil and gas drilling operations with its primary function as the hydrostatic pressure to balance the formation pressure. There are some formations in Indonesia where the drilling hazards are extensive, but the problem that most likely to overcome is the shale/clay swelling. Today there is a water based mud called Polyamine Mud, a Polyamine mud has the advantages over conventional water base mud and also in some functions are as good as the Oil Base Mud. Some companies are still trying to adopt this technology into their drilling projects with various aspects to be considered and are wondering whether it will help them to drill a formation with shale/clay problem characteristics. A field location on the island of Sulawesi has drilled some  wells on  the Kintom formation using the Polyamine mud for a total depth of about 7,000 ft – 9,000 ft. The drill hole problem was not only the shale/clay swelling, but was also followed by some problems such as differential sticking and partial to total mud losses. The wells have now been drilled successfully and the gas production was above expectation. This paper will discuss a comparison of the Polyamine mud with the conventional mud system such as KCL-Polymer mud by doing some unconventional tests in the laboratory, including inhibition test, dispersion test, accression test, and bulk hardness test. After being tested in the laboratory, the Polyamine 3% mud system has drilled succesfully in some wells.