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All Journal Scientific Contribution Oil and Gas LEMBARAN PUBLIKASI MINYAK DAN GAS BUMI
Gathuk Widiyanto
Unknown Affiliation
Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Energy Engineering Environmental Science

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DEVELOPMENT OF ULTRASONOGRAPHY FOR DOWNHOLE WELL INSPECTION Gathuk Widiyanto
Scientific Contributions Oil and Gas Vol. 37 No. 2 (2014): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.37.2.224

Abstract

One technique to increase oil production rate in marginal and suspended wells is solving mechanicalproblem. Success parameter to solve the mechanical problem is to identify this problem properly andaccurately. One of the tools to identify the well integrity including mechanical problem in oil and gasindustry is downhole camera used to describe bore hole conditions. Image is very important and is usedas main parameter to determine the production and operation strategy. So, imaging technology transfer isvery important especially on proven technology. Ultrasonography is proven technology in medical disciplineto create image within human body without signifi cant error. This research tries to apply ultrasonographytechnology in oil and gas industry. Recently, design and prototype of downhole inspection tools stage III havebeen completed. Prototype consists of electronic system, mechanical system and information system includedacquisition system. Laboratory test of these tools has been conducted successfully. Acquisition system usesmemory system within dry battery to avoid operation problem at fi eld test. Several advantages of this toolsare the small number data as per user’s required, user friendly and simple in operation.
PENGEMBANGAN METODA EKSPLORASI GEOKIMIA MERKURI ARSENIK DAN H2S DI DAERAH PROSPEK GEOTHERMAL DAN UJI VALIDASINYA Yayun Andriani; Eko Handoyo; Annisa Chairuna; Gathuk Widiyanto
Lembaran Publikasi Minyak dan Gas Bumi Vol. 56 No. 2 (2022): LPMGB
Publisher : BBPMGB LEMIGAS

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Abstract

Penyelidikan penggunaan paket adsorben terbuat dari membran Polytetrafluoro ethylene (PTFE) dan karbon aktif yang telah dimpregnasi larutan Kalium Iodida (KI) dan Kalium Hidroksida (KOH) untuk menangkap merkuri, arsenik dan H2S di area yang terdapat prospek geothermal. Tujuan dari penyelidikan ini adalah mengembangkan metoda adsorben penangkap merkuri (Hg) yang selama ini menggunakan adsorben emas dengan adsorben berbahan baku karbon aktif dalam bentuk paket adsorben yang dapat menangkap 3 senyawa sekaligus yaitu Hg, As dan H2S secara efektif dan efisien. Survei Hg, As, dan H2S dilakukan dengan metoda passive soil gas sampling dengan cara penanaman paket adsorben sebanyak 300 paket selama kurun waktu 2 minggu di lapangan geothermal Ulubelu Lampung dimana terdapat sumber panas bumi sekaligus sebagai lokasi untuk uji validasinya. Hasil analisa Hg, As, dan H2S terhadap paket adsorben setelah masa penanaman menunjukkan korelasi yang positif yang mengindikasikan keberadaan struktur (patahan) di bawah permukaan dan adanya zona-zona temperatur yang bervariasi dan telah sesuai (80%) dengan peta struktur yang telah valid. Pengembangan metoda survei ini diharapkan dapat mengurangi biaya survei eksplorasi geothe
Co-Authors Annisa Chairuna Eko Handoyo Yayun Andriani