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All Journal JOURNAL OF EARTH ENERGY ENGINEERING Specta Journal of Technology
Mursyidah Umar, Mursyidah
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Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Materials Science & Nanotechnology

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Optimasi Hidrolika Lumpur Pemboran Menggunakan Api Modified Power Law Pada Hole 8½ Sumur X Lapangan Mir Jaharudin, Novrianti; Umar, Mursyidah
JOURNAL OF EARTH ENERGY ENGINEERING Vol 4 No 2 (2015): OCTOBER
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (718.158 KB) | DOI: 10.22549/jeee.v4i2.635

Abstract

Salah satu faktor utama yang perlu diperhatikan dalam keberhasilan suatu operasi pemboran adalah pembersihan lubang bor dari serbuk bor selama proses pemboran berlangsung. Perencanaan dan kontrol yang baik dapat mempercepat operasi pemboran dan secara keseluruhan dapat menghemat biaya. Sistem hidrolika lumpur pemboran berpengaruh terhadap pembersihan lubang bor, lumpur yang keluar dari nozzle dengan kecepatan tinggi membantu pahat menembus batuan serta mengangkat cutting ke permukaan. Analisis hidrolika lumpur dan hidrolika pahat pada sumur X dilakukan pada pelaksanaan pengeboran hole 8½dimulai dari kedalaman 2093 ft – 5555 ft. Analisis ini dilakukan untuk mengetahui kehilangan tekanan sirkulasi lumpur pemboran serta untuk mengoptimalkan laju alir sirkulasi dan diameter nozzle pahat untuk mengoptimalkan pengangkatan cutting. Metode yang dipergunakan dalam analisis lumpur pemboran adalah metode API modified power law dimana metode tersebut merupakan penyempurnaan dari metode power law dan direkomendasikan untuk dipergunakan oleh API. Sedangkan metode yang digunakan dalam mengevaluasi keberhasilan hidrolika pahat dilakukan dengan menggunakan metode Bit Hydraulic Horse Power (BHHP). Metode BHHP sesuai digunakan untuk pemboran vertical dengan pertimbangan gaya gravitasi dan cenderung aliran yang digunakan laminer. Berdasarkan hasil studi kasus diperoleh bahwa pengangkatan cutting akan sempurna apabila aliran di annulus laminar, total kehilangan tekanan adalah 842.08 psi dimana kehilangan tekanan yang terjadi pada Surface Connection 6.312 psi, Pada Drill String 523.191 psi, Pada Annulus 169.305 psi, Pada Bit 136.955 psi. Laju alir aktual 502 gpm dengan diameter nozzle 6x15 tidak optimal, maka laju alir dioptimasikan menjadi 440 gpm dengan diameter nozzle 6x10.
Studi Laboratorium Pengaruh Variasi Temperatur Pemanasan Arang Batok Kelapa Terhadap Thickening Time dan Free Water Semen Pemboran Novrianti, Novrianti; Umar, Mursyidah
Journal of Earth Energy Engineering Vol 6 No 1 (2017): APRIL
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (327.198 KB) | DOI: 10.22549/jeee.v6i1.632

Abstract

The cementing process can determine successful oil well when producing oil to the surface. Planning the time required for the cement suspension to achieve consistency of 100 UC (unit of consistency) or thickening time and the maximum limit of water content used is the nature of cement slurry that affect the quality of cement. The addition of coconut shell charcoal with variation of heating temperature 400 0C, 500 0C, 600 0C, 700 0C, 800 0C, 900 0C to the basic cement was done in this study to determine the effect of heating temperature of coconut shell charcoal to thickening time and free water cement drilling. This experimental study uses an additive material derived from coconut shell charcoal. This experiment begins by preparing a cement sample with a coconut shell charcoal concentration of 1%. The coconut shell charcoal used has different heating temperatures of 400 0C, 500 0C, 600 0C, 700 0C, 800 0C, 900 0C. Suspense cement is made by mixing G grade cement, water, bentonite, CaCl2 and coconut shell charcoal. Thickening time test using atmospheric equipment consistometer and measuring cups used to determine the value of free water. The results showed that the thickening time and free water values ​​were influenced by the heating temperature of coconut shell charcoal. The higher coconut shell charcoal temperature used in the cement suspension make thickening time of the cement suspension becomes shorter. The optimum heating temperature of coconut shell charcoal is 700 0C with thickening time of 1 hour 38 seconds 52 seconds and free water 1.2 mL.
Estimasi Kandungan Degadable Organic Carbon (DOC) pada Sampah Padat Kota yang masuk ke TPA Tanjung Belit di Kota Pasir Pangaraian Provinsi Riau Dalilla, Faizan; Umar, Mursyidah; Ridwan, Abrar
SPECTA Journal of Technology Vol 1 No 1 (2017): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/specta.v1i1.73

Abstract

Degradable Organic Carbon (DOC) is the important element in forming CH4 in a pile of garbage in the landfill. The calculation of the potential of methane (CH4) in the landfill become the basis for control and management of GHG sourced from landfill. Estimated value of the content of DOC used calculating the weight of municipal solid waste that goes into landfill every day, counting the value of the fraction of the composition and content of dry matter of municipal solid waste by 11 components of garbage (food, paper / cardboard, gardens and parks, nappies, wood, textiles, rubber / leather, plastic, glass, metal and sampahlain etc.), to further multiplied by the fraction of a default value content of DOC in each component of trash and garbage in total. The calculations show that the total weight of waste that goes to landfill every day at 14594.05 kg / day with the largest waste composition in the form of junk food at 49.54%, followed by plastic waste (13.76%) and the smallest is junk metal composition by 1.18%. As for the fraction of the dry matter of the highest value was found in the garbage rubber / leather by 95.31%, followed by wood waste amounted to 78.61% and the smallest value was found in the garbage nappies by 17.43% and 21.23% of food waste. Based on calculations using the value of the total garbage in, the fraction of the composition and the fraction of dry material content and the fraction of DOC.
Co-Authors Abrar Ridwan Dalilla, Faizan Husnul Kausarian Novrianti Novrianti Jaharudin, Novrianti Sugeng Wiyono