Claim Missing Document
Check
Articles

Found 10 Documents
Search

PENGARUH KOMPOSIT AMPAS TEBU, SEKAM PADI, BENTONITE TERHADAP pH, TDS DAN ADSORBSI ISOTERMAL FREUNDLICH Ahmad Naufal Guthni Russaputro; Lestari Lestari; Harin Widiyatni
JURNAL PENELITIAN DAN KARYA ILMIAH LEMBAGA PENELITIAN UNIVERSITAS TRISAKTI Vol. 7 No. 2 (2022)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/pdk.v7i2.13306

Abstract

Seiring berjalanannya produksi minyak mentah maka semakin banyak air formasi yang terproduksi, jika dibuang ke lingkungan dapat menyebabkan tercemarnya lingkungan sekitar. Masalah ini dapat diselesaikan dengan menggunakan proses adsorpsi. Dalam penelitian ini ingin diketahui keefektifan komposit ampas tebu, sekam padi dan bentonite sehingga memenuhi bakumutu yang ditentukan PERMENLH no 19 tahun 2010 dan adsorbsi dari adsorben dengan menggunakan metode Freundlich isothermal. Untuk perhitungan Total Dissolved Solid (TDS), dan pH pada setiap sampel dari massa sampel yang digunakan sebesar 1 gram, 1.5 gram, 2 gram, 2.5 gram dan 3 gram. Pada sampel 3 gram ampas tebu,sekam padi dan bentonite nilai TDS bertutut-turut sebesar 1153 ppm, 2321 ppm dan 4214 ppm. Untuk nilai pH pada semua sampel berada pada batas baku mutu yang ditentukan pada sekam padi mempunyai nilai pH 7-8, Ampas tebu pH 6-7 dan untuk bentonite pH 7 dan 9. Dimana nilai TDS dan pH awal sebesar 5100 ppm dan 5.Untuk nilai regresi linear yang dihitung menggunakan metode Freundlich isothermal pada ampas tebu dengan nilai koefisien korelasi (R2) sebesar 0.9272, pada ampas sekam padi nilai koefisien korelasi (R2) sebesar 0,9089 dan pada bentonite nilai koefisien korelasi (R2) sebesar 0,8547. Dari penelitian ini ampas tebu nilai koefisien korelasi yang terbaik dikarenakan nilai koefisien korelasinya mendekati satu.
PENGARUH KOMPOSIT AMPAS TEBU, SEKAM PADI, BENTONITE TERHADAP pH, TDS DAN ADSORBSI ISOTERMAL FREUNDLICH Ahmad Naufal Guthni Russaputro; Lestari Lestari; Harin Widiyatni
JURNAL PENELITIAN DAN KARYA ILMIAH LEMBAGA PENELITIAN UNIVERSITAS TRISAKTI Vol. 7 No. 2 (2022)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1516.855 KB) | DOI: 10.25105/pdk.v7i2.13306

Abstract

Seiring berjalanannya produksi minyak mentah maka semakin banyak air formasi yang terproduksi, jika dibuang ke lingkungan dapat menyebabkan tercemarnya lingkungan sekitar. Masalah ini dapat diselesaikan dengan menggunakan proses adsorpsi. Dalam penelitian ini ingin diketahui keefektifan komposit ampas tebu, sekam padi dan bentonite sehingga memenuhi bakumutu yang ditentukan PERMENLH no 19 tahun 2010 dan adsorbsi dari adsorben dengan menggunakan metode Freundlich isothermal. Untuk perhitungan Total Dissolved Solid (TDS), dan pH pada setiap sampel dari massa sampel yang digunakan sebesar 1 gram, 1.5 gram, 2 gram, 2.5 gram dan 3 gram. Pada sampel 3 gram ampas tebu,sekam padi dan bentonite nilai TDS bertutut-turut sebesar 1153 ppm, 2321 ppm dan 4214 ppm. Untuk nilai pH pada semua sampel berada pada batas baku mutu yang ditentukan pada sekam padi mempunyai nilai pH 7-8, Ampas tebu pH 6-7 dan untuk bentonite pH 7 dan 9. Dimana nilai TDS dan pH awal sebesar 5100 ppm dan 5.Untuk nilai regresi linear yang dihitung menggunakan metode Freundlich isothermal pada ampas tebu dengan nilai koefisien korelasi (R2) sebesar 0.9272, pada ampas sekam padi nilai koefisien korelasi (R2) sebesar 0,9089 dan pada bentonite nilai koefisien korelasi (R2) sebesar 0,8547. Dari penelitian ini ampas tebu nilai koefisien korelasi yang terbaik dikarenakan nilai koefisien korelasinya mendekati satu.
KUALITAS AIR SUMUR-SUMUR PENDUDUK DI KELURAHAN JATI PULOGADUNG JAKARTA TIMUR Lestari Lestari; Ziad Thoriq
PETRO:Jurnal Ilmiah Teknik Perminyakan Vol. 6 No. 2 (2017): Agustus
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (359.054 KB) | DOI: 10.25105/petro.v6i2.3106

Abstract

Dari analisa air di  kelurahan Jati Pulogadung , kualitas air sebagian besar (13 dari 16 c9ntoh sampel memenuhi standart air bersih. Terdapat 3  contoh air yang tidak sesuai dan 13 contoh air yang sesuai standart   baku mutu air bersih yang ditetapkan Departemen Kesehatan . Dua contoh air mempunyai pH lebih rendah dari standart maksimum yang diijinkan yakni pH 6.2 dan 6.4, standart maksimum 6.5 – 9. Dua contoh air mempunyai kadar mangan (Mn) melebihi standart maksimum yang diperbolehkan yakni  (1.022 dan 0.970) mg/L, standart maksimum 0.5 mg/L. Tiga belas contoh air mempunyai parameter sesuai standart baku mutu air bersih dengan range,  warna <1 – 5, tidak berbau, tidak berasa,  kekeruhan (0,17 – 16,20)mg/L,zat padat (115.3 – 419.5)mg/Lm zat organic (1.26 – 2.81)mg/L, pH (6.5 – 7.8), kesadahan (25.84 – 284.27) mg/L, besi (< 0.155 – 0.98), mg/Lm , Mangan (<0.048 – 0.446) mg/L, Sulfat (7 – 52) mg/L, Nitrit (<0.004 – 0.14), mg/L, Chlorida (12.52 – 68.44)mg/L, Fluorida (0.16 – 0.33)mg/L, Nitrat (0.014 -4.441)mg/L, Seng ( <0.080)mg/L dan Sianida (<0.028) 
UNLOCKING HIDDEN POTENTIAL OF SHALLOW RESERVOIR AT 1955-2342 mSS, IN RUHOUL FIELD Abda Anwaratutthifal; Lestari Lestari; Reno Pratiwi
PETRO:Jurnal Ilmiah Teknik Perminyakan Vol. 8 No. 1 (2019): MARET
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (913.583 KB) | DOI: 10.25105/petro.v8i1.4288

Abstract

As a human, live in the ever-changing environment, with the abundant amount of human movement, increasing population, and advancing technology, consumpting high energy is inevitable. Indonesia has been working to obtain better energy to fuel the world. As the multinational energy company, Pertamina Hulu Mahakam, located in East Kalimantan, operate world wide to extract oil and gas from the reservoir in Mahakam Delta, which already used high technology and qualified human resource to support the safe, efficient, and effective production process.The petroleum system models, the contribution of marine shales to the generation of liquid and gaseous hydrocarbons in the Mahakam was considered negligible. The production of the oil fields has started quite early, however the major development phase of gas accumulation started within the last decade, with increasing activity since.Ruhoul is an offshore gas field belongs to Pertamina Hulu Mahakam that located in Mahakam Delta, East Kalimantan, Indonesia. It covers an area of 350 km2 and has a gross thickness of the payzone over 2000 m. Structural architecture of Ruhoul field is multilayered un-faulted anticline. Stratighraphycally, Ruhoul reservoirs are divided into two intervals which are Ruhoul Main Zone and Ruhoul Shallow. This study is only focused in Shallow zone area, they are Sh-8a, Sh-8c, and Sh-8d, as it is considered as remaining prospective area for Ruhoul field. For more specific, Sh-8a was produced by wells RJ-16A-M and RJ-2G-M.T3, Sh-8c was produced by well RJ-2G-M.T3, and Sh-8d was produced by well RJ-2G-M-T3.Over time, the gas production in Ruhoul Field keep decreasing, therefore hidden gas production potential needs to be re-evaluated. The evaluation can be done by doing the dynamic synthesis analysis based on completion type used, production history, and well correlation.The main objective of this study is to evaluate hydrocarbon potential in Ruhoul Shallow specific area. Several approaches will be used to assess Ruhoul Shallow zone prospect such an updated database, zone change inventory, and well correlation based on netpay map by layer with software Geolog 7.2.Perform Dynamic Synthesis Analysis and P/Z Straight Line Material Balance Calculation are chosen as the methodology to assess the prospect zone of this field. The results of this process are candidates to be the re-opening zone, the value of GIIP, EUR, RR, RF, also the drive mechanism applied to each layer. Not only that, the results also obtained the Plateau rate stage curve in each layer.The results showed two categories of re-opening candidates, P/Z methodology to calculate the value of GIIP and RF, and Plateau stage in each layer. Along with this study, the only well that suit to be the candidate for re-opening zone was only RJ-2G-M.T3 in Sh-8a, while the other layers and wells were not suit to be the candidate for re-opening zone. From the P/Z Straight Line calculation, the GIIP for the candidate (Sh-8a produced by RJ-2G-M.T3) is 1.15 BSCF, with 1.02 BSCF Gp max, and 89% RF, and has depletion drive as its drive mechanism. Based on Plateau stage with 4 MMSCFD as the plateau rate, the decline in RJ-2G-M.T3 (Sh-8a) started on July 2015. 
PENGARUH SCALE TERHADAP PRODUKTIVITAS PADA SUMUR BN-52, BN-104, DAN BN-110 DI LAPANGAN “X” Abhikama Pradipta; Lestari Lestari; Samsol Samsol
PETRO:Jurnal Ilmiah Teknik Perminyakan Vol. 8 No. 1 (2019): MARET
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (648.979 KB) | DOI: 10.25105/petro.v8i1.4290

Abstract

BN-52, BN-104, and BN-110 wells are located on the X field, PT. PERTAMINA FIELD RAMBA ASSET 1, South Sumatra. The three wells are oil-producing wells in field X. Using the Vogel equation, the IPR curve and maximum flow rate of each well are obtained, which are 152.14 BOPD, 57.2 BOPD, and 53.76 BOPD respectively. By using the exponential Decline Curve Analysis calculation method, it can be seen the rate of decline in production, as well as the time of well production to economic limit. The results of the Decline Curve Analysis show that the BN-52 well will still be in production until March 2022, and the BN-110 well can produce until March 2020. In the analysis with the Stiff & Davis Method, carbonate deposits are proven, with each Stability Index value  +1.19, +1.60, and +1.35, whereas with the Skillman, Mcdonald & Stiff method there was no scale sulfate, with S values of each well at 57,272 meq / l, 54,416 meq / l, and 55,147 meq / l. The scale causes oil production to decrease, consequently the IPR curve shifts to the left. The decreasing production of the three wells is due to a scale that inhibits the flow rate. Maximum flow rate was obtained by using the Standing correlation in each well of 100.06 BOPD, 54.53 BOPD, and 28.72 BOPD. The decline in oil production caused by scales must be handled appropriately.
PERHITUNGAN POTENSI CADANGAN PANASBUMI LAPANGAN “X” MENGGUNAKAN DATA EKSPLORASI Syahda Ahyar Habibirahman; Lestari Lestari; Bambang Kustono
PETRO:Jurnal Ilmiah Teknik Perminyakan Vol. 8 No. 1 (2019): MARET
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (965.863 KB) | DOI: 10.25105/petro.v8i1.4291

Abstract

The method used in this reserve estimation is volumetric, regulated by Badan Standar Nasional Indonesia (BSNI) (SNI 13-6482-2000). This method considers that the reservoir is a form of dimensional space so that its volume can be measured. This type of method can also be used in reserve classes ranging from hypothetical resources up to proven reserves, with parameters used in this calculation obtained through assumptions and those that are the result of preliminary survey activities, which consist of geological (MT maps), geophysics (MT maps), and geochemistry (geothermometer) surveys. Data obtained from preliminary survey activities contains data on thickness, area, and temperature of the reservoir. Other parameters that have not been obtained from preliminary survey activities, such as rock porosity and heat capacity, final temperature, water and steam saturation, internal energy of water and steam, water and steam density, recovery factor, load factor and span and are based on assumptions compiled by BSNI (SNI 13-6482-2000). In addition of using volumetric methods, calculations are also performed using the Monte Carlo simulation method. This method uses random numbers as uncertainty factors in some parameters that have been obtained from the preliminary survey as mentioned above, with the type of distribution determined based on calculation parameters.. With the reservoir temperature of 220oC, area of 7.4 km2, & thickness reaches 1550 m, the potential for geothermal reserve at "X" Field based on the volumetric method is 36.90 MWe. Meanwhile, using the Monte Carlo simulation method, the potential reserves at a 90% confidence level are around 47.93 MWe: which has the the most likely reservoir temperature of 220oC with the range of values varies around 200-225oC, reservoir area with the most likely value is 7.5 km2 ranging from 4-11 km2, and the most likely thickness value is 1550 m with 1200-1700 m for the minimum and maximum values.The calculation results of the geothermal energy reserve potential in the "X" Field are 36.90 MWe using volumetric method and 47.93 for Monte Carlo simulation method.
EVALUASI ISI AWAL GAS DI TEMPAT DAN ANALISIS DECLINE CURVE PADA RESERVOIR YS Yogie Seto S. W; Onnie Ridaliani; Lestari lestari
PETRO:Jurnal Ilmiah Teknik Perminyakan Vol. 8 No. 1 (2019): MARET
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1368.114 KB) | DOI: 10.25105/petro.v8i1.4293

Abstract

YS reservoir has data of gas initial in place (GIIP) with a volumetric method of 3,476 Bscf. Because of improvement of data, GIIP can be evaluated using material balance method. Then the production of wet gas will be forcasted until below economic limit. The PVT data that needs to be calculated in this study is the gas and water compressibility factor and the formation volume factor each year. In determining the type of drive mechanism, a plot of P / Z versus cumulative gas production is carried out, from the analysis, the type of drive mechanism is water drive, it is necessary to calculate the water influx, the method used is the Van Everdengen-Hurst method. After all the required parameters are available, the calculation of the initial gas in place will be calculated, the method used is the material balance method and the straight line material balance method. The results of the initial gas in place calculation using the material balance and straight line material balance methods are 3,430 Bscf and 3,428 Bscf. If the results of the material balance method and the straight line material balance method are compared with available GIIP volumetric method data, the percent difference is 1,32% and 1,37%. It can be said that GIIP result using the material balance method and the straight line material balance method is accurate because after being evaluated using volumetric method, it only has a small percentage difference. Then from the decline curve and Trial Error and X2 – Chisquare Test analysis, the decline curve is exponential with Di at 1,103 / month. After forecasting until production of wet gas is below the economic flow rate of 0,045 Mscf / d, it is known that the productive age is until 1st September 2021 with the values of EUR and RR respectively 2,309 and 0,014 Bscf. Using the results of GIIP using the material balance and straight line method, the current recovery factor are 67,34% and 67,37 %.
KOLABORASI METODE MATERIAL BALANCE DAN SOFTWARE IPM UNTUK MENENTUKAN KEMAMPUAN RESERVOIR Aqlyna Fattahanisa; Lestari Lestari; Hari K Oetomo
PETRO:Jurnal Ilmiah Teknik Perminyakan Vol. 9 No. 4 (2020): DESEMBER
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (644.335 KB) | DOI: 10.25105/petro.v9i4.8216

Abstract

Tujuan dari penulisan ini adalah untuk dapat mengoptimalkan isi awal gas di tempat sehingga dapat memenuhi kebutuhan pasar yang semakin tinggi akan gas bumi dengan mempertimbangkan lama umur sumur, mengetahui nilai dari recovery factor, kumulatif produksi, jumlah gas optimum yang akan dialirkan, serta strategi pemanfaatan gas dari Reservoir A. Metode yang digunakan adalah simulasi perangkat lunak IPM dengan penentuan cadangan atau original oil in place menggunakan medode material balance P/Z, serta koreksi faktor kompresibilitas (Z faktor) menggunakan kombinasi metode antara Winchert-Aziz Correction dan Gopal. Hasil dan kesimpulannya adalah, cadangan yang didapat sebesar 8.9 BSCF, dengan sensitifitas laju alir 1-10 MMSCF, maka dengan pertimbangan perbandingan waktu plateau yang panjang, umur sumur yang panjang dan recovery factor-nya yang besar pada tiap laju alir serta persyaratan PJBG, Reservoir A Sumur F1 mempunyai laju alir optimum 2 MMSCFD dengan jumlah kumulatif produksi senilai 8.08 BSCFD, recovery faktor sebesar 91.86%, lama plateau 105 bulan, umur sumur pada abandon tekanan reservoir 150 psig adalah selama 276 bulan. Dengan demikian, dengan jumlah cadangan gas sebesar 8.9 BSCF sehingga Gas dari Reservoir A dapat dijual kepada konsumen dengan menambah 5 sumur produksi, agar mencukupi minimum penyerahan harian sebesar 11 MMSCFD.serta menambahkan CO2 removal untuk menghilangkan CO2 agar memenuhi kriteria perjanjian jual beli gas (PJBG).
PENGGUNAAN METODE MATERIAL BALANCE DALAM PENENTUAN ISI AWAL GAS DI TEMPAT PADA RESERVOIR ZX FX Krisna Putra Tapangan; Lestari Lestari; Aqlyna Fattahanisa
PETRO: Jurnal Ilmiah Teknik Perminyakan Vol. 10 No. 1 (2021): MARET
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (583.038 KB) | DOI: 10.25105/petro.v10i1.8905

Abstract

Reservoir ZX merupakan reservoir gas basah ( wet gas reservoir ) yang diketahui jenisn reservoirnya melalui metode kualitatif dengan analisa komposisi hidrokarbon reservoir, karakteristik fluida reservoir dan data PVT. Pada penelitian yang dilakukan, analisa komposisi hidrokarbon mulai dari karbon C1 hingga C7+, data karakteristik fluida reservoir yaitu GLR, API, dan SG gas. Karena reservoir ZX adalah reservoir gas basah ( wet gas reservoir ), dilakukan pengkoreksian kumulatif dari gas yang diproduksi dari Gpdry menjadi Gpwet dengan metode vapor equivalent dengan nilai Veq didapatkan sebesar 1690.               Dalam penelitian, penentuan jenis tenaga dorong dari reservoir ZX menggunakan metode energy plot dan P/Z Vs Gp. Hasil metode energy plot tidak terdapat water influx yang menandakan jenis tenaga dorong pada reservoir gas adalah depletion gas drive dan sesuai dengan analisa pada garis plot metode P/Z Vs Gp yang menandakan jenis tenaga dorong depletion gas drive. Perhitungan isi awal gas di tempat pada penelitian digunakan metode volumetrik, Material Balance 3113,135 BSCF dan memiliki nilai recovery factor dari metode Material Balance adalah 80,523%.
PENGARUH KOMPOSIT AMPAS TEBU, SEKAM PADI, BENTONITE TERHADAP pH, TDS DAN ADSORBSI ISOTERMAL FREUNDLICH Ahmad Naufal Guthni Russaputro; Lestari Lestari; Harin Widiyatni
JURNAL PENELITIAN DAN KARYA ILMIAH LEMBAGA PENELITIAN UNIVERSITAS TRISAKTI Vol. 7 No. 2 (2022)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/pdk.v7i2.13306

Abstract

Seiring berjalanannya produksi minyak mentah maka semakin banyak air formasi yang terproduksi, jika dibuang ke lingkungan dapat menyebabkan tercemarnya lingkungan sekitar. Masalah ini dapat diselesaikan dengan menggunakan proses adsorpsi. Dalam penelitian ini ingin diketahui keefektifan komposit ampas tebu, sekam padi dan bentonite sehingga memenuhi bakumutu yang ditentukan PERMENLH no 19 tahun 2010 dan adsorbsi dari adsorben dengan menggunakan metode Freundlich isothermal. Untuk perhitungan Total Dissolved Solid (TDS), dan pH pada setiap sampel dari massa sampel yang digunakan sebesar 1 gram, 1.5 gram, 2 gram, 2.5 gram dan 3 gram. Pada sampel 3 gram ampas tebu,sekam padi dan bentonite nilai TDS bertutut-turut sebesar 1153 ppm, 2321 ppm dan 4214 ppm. Untuk nilai pH pada semua sampel berada pada batas baku mutu yang ditentukan pada sekam padi mempunyai nilai pH 7-8, Ampas tebu pH 6-7 dan untuk bentonite pH 7 dan 9. Dimana nilai TDS dan pH awal sebesar 5100 ppm dan 5.Untuk nilai regresi linear yang dihitung menggunakan metode Freundlich isothermal pada ampas tebu dengan nilai koefisien korelasi (R2) sebesar 0.9272, pada ampas sekam padi nilai koefisien korelasi (R2) sebesar 0,9089 dan pada bentonite nilai koefisien korelasi (R2) sebesar 0,8547. Dari penelitian ini ampas tebu nilai koefisien korelasi yang terbaik dikarenakan nilai koefisien korelasinya mendekati satu.