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All Journal PROSIDING SEMINAR NASIONAL CENDEKIAWAN Indonesian Journal of Clinical Pathology and Medical Laboratory (IJCPML)
R. Permatasari
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Biochemistry, Genetics & Molecular Biology Education Health Professions Medicine & Pharmacology Neuroscience

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ANALISA PERBANDINGAN PERHITUNGAN DESAIN ENGINEERING PIPA ALIR DENGAN SIMULASI DENGAN MENGGUNAKAN SOFTWARE PIPESIM TERHADAPKONDISI OPERASI PADA LAPANGAN X PT. PERTAMINA EP ASSET 1 FIELD RAMBA Royan Thalib; Chalilullah Rangkuti; R. Permatasari
PROSIDING SEMINAR NASIONAL CENDEKIAWAN Prosiding Seminar Nasional Cendekiawan 2017 Buku II
Publisher : Lembaga Penelitian Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/semnas.v0i0.2199

Abstract

Minyak bumi dan gas alam merupakan senyawa hidrokarbon yang terakumulasi pada reservoir. Minyak bumi diproduksikan dari sumur produksi yang menghasilkan fluida 2 fasa yaitu cairan dan gas yang kemudian dialirkan dengan tekanan tertentu melalui pipa alir minyak bumi dari sumur produksi menuju stasiun pengumpul minyak untuk diproses lebih lanjut supaya memenuhi baku mutu kualitas yang ditentukan. Tekanan balik terjadi akibat peningkatan tekanan pipa alir minyak disebabkan oleh penambahan fluida produksi hingga 30.000 Barrel Fluida per hari menyebabkan peningkatan tekanan pipa alir menjadi 330-360 psig pada pipa alir ukuran 8” sehingga menyebabkan hilangnya potensi produksi hingga 162Barrel Oil Per Day (BOPD) perhari dari 17 sumur produksi minyak. Penanggulangan permasalahanan akibat dari peningkatan produksi sumur harus dilakukan dengan mengidentifikasi permasalahan dengan mensimulasikan masalah. Desain fasilitas yang optimal dilakukan dengan mensimulasikan desain dengan menggunakan perangkat lunak Pipesim. Perbandingan antara desain engineering simulasi dengan Pipesim dan Kondisi aktual didapatkan hasil yang dapat mengilustrasikan kondisi lapangan dengan selisih perbedaan kehilangan tekanan sebesar 1 psig / 100 kaki panjang pipa. Peningkatan produksi dapat dicapai dengan penggantian pipa alir dari 8 inci menjadi 12 inci untuk dapat mengalirkan fluida sebanyak 66.000 barrel fluida per hari sehingga tekanan operasi turun mejadi 147 psig. 
EOSINOPENIA DAN PROCALCITONIN DALAM SEPSIS Danny Luhulima; W. Hidayati; IGAAP. Sri Rejeki; R. Permatasari
INDONESIAN JOURNAL OF CLINICAL PATHOLOGY AND MEDICAL LABORATORY Vol 19, No 2 (2013)
Publisher : Indonesian Association of Clinical Pathologist and Medical laboratory

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24293/ijcpml.v19i2.1067

Abstract

Sepsis is one of the common causes of morbidity and mortality in the ICU. Clinicians need to know and realize of good diagnosticmarkers to identify sepsis as early as possible. The role of eosinopenia as a marker of sepsis has recently been evaluated.The aim of thisstudy was to test the value of eosinopenia as a diagnostic marker of sepsis in comparison to Procalcitonin. A cross sectional study wasperformed in 61 adult patients with SIRS, and blood of all patients were cultured. Further examinations were done for comparing theeosinophil count with the Procalcitonin levels if the blood culture was positive or when there were clinical signs which supported for sepsis.In this study there were fourty two patients enrolled. Procalcitonin level yielded a sensitivity of 90.0%, specificity of 83.3%, a positivepredictive value (PPV) of 93.1% and a negative predictive value (NPV) of 76.9% at cut-off value of 2.75 ng/mL. The eosinophil (cut off ≤50 cells/μL) produced a sensitivity of 80.0%, specificity of 75.0%, PPV of 88.9%, and NPV of 60.0%. based on this study Procalcitoninappeared to be a more accurate diagnostic of sepsis than eosinopenia, but eosinopenia is still a helpful tool for clinicians, and may also beused as a diagnostic marker of sepsis, because it is highly sensitive, moderately specific, easy to measure, rapid and inexpensive as well.
Co-Authors Chalilullah Rangkuti Danny Luhulima IGAAP. Sri Rejeki Royan Thalib W. Hidayati