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All Journal Jurnal Migasian Akamigas Balongan Indramayu BAKTI BANUA : JURNAL PENGABDIAN KEPADA MASYARAKAT Petro : Jurnal Ilmiah Teknik Perminyakan JURNAL ABDI MASYARAKAT INDONESIA (JAMIN) Journal of Earth Energy Science, Engineering, and Technology Jurnal Migasian

Ratnayu Sitaresmi

Universitas Trisakti

Author-ID : 2707454

Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Public Health Social Sciences Other

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Analisis Gas Deliverability Dan Crossflow Pada Multilayer Reservoar Sumur Gas “X” Untuk Pengembangan Lapangan Gas “Y” Dandi Octarizka; Sugiatmo Kasmungin; Ratnayu Sitaresmi
Jurnal Migasian Vol 2 No 2 (2018): Jurnal Migasian
Publisher : LPPM Akademi Minyak dan Gas Balongan Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36601/jurnal-migasian.v2i2.41

Lapangan “Y” terletak 40 km ke arah Barat Laut dari Pulau Tarakan, Kalimantan Utara memiliki sumur gas “X” yang dalam uji produksinya dilakukan dari secara commingle. Maka harus dilakukan analisis uji sumur untuk mengetahui kemampuannya dalam memproduksikan gas tersebut (gas deliverability). Metode yang digunakan antara lain Modified Isochronal Tets (konvensional), Metode Laminer-Inertia-Turbulen (LIT) dan Metode Jones-Blount- and Glaze. Perbandingan ini dilakukan untuk mengetahui metode mana yang paling optimum dengan juga laju alir yang terbaik. Parameter yang didapatkan dari hasil uji sumur tersebut kemudian dianalisis sebagai data repesentatif untuk digunakan dalam menganalisis crossflow dari multilayer reservoar. Crossflow adalah keadaan dimana masuknya fluida dari layer satu ke layer lainnya yang diakibatkan adanya perbedaan karakteristik antar layer . Analisa crossflow diuji dengan simulasi produksi tiap layer reservoar dan membandingkan antara jumlah produksi t iap layernya dengan produksi semua layer (commingle).Dari hasil penelitian menunjukkan bahwa Metode Jones -Blount- and Glaze merupakan metode yang paling mendekati dari test point sumur gas “x” dengan nilai AOF terbaik. Kemudian dari analisis crossflow yang dilakukan secara simulasi selama 1 tahun (2019-2020), terdapat gap dari kumulatif produksi gas tiap-tiap layer dengan kumulatif produksi gas secara commingle sebesar + 0.0379 MMSCF, hal ini disebabkan karena adanya perbedaan nilai permeabilitas horizontal dan tekanan antar layer. Dari analisis sumur “X” tersebut maka dilanjutkan ke pengembangan lapangan gas “Y” dengan simulasi didapatkan RF terbesar 89.38% dari total IGIP23.53 BCF

PEMBELAJARAN AKTIF, KREATIF, EFEKTIF, DAN MENYENANGKAN UNTUK SISWA SISWI SMK MIGAS CIBINONG Muhammad Taufiq Fathaddin; Ratnayu Sitaresmi; Sugiatmo Kasmungin; M.G. Sriwahyuni; Harin Widyatni; Hari Karyadi Oetomo; Darmasetiawan Hakim
Bakti Banua : Jurnal Pengabdian Kepada Masyarakat Vol 1, No 2 (2020): BAKTI BANUA : JURNAL PENGABDIAN KEPADA MASYARAKAT
Publisher : Sekolah Tinggi Ilmu Manajemen Indonesia (STIMI) Banjarmasin

Tujuan akhir dari proses pembelajaran adalah untuk membentuk manusia yang berkualitas tinggi. Metode-metode pembelajaran dikembangkan bukan saja untuk mencapai pemahaman yang lebih baik namun juga untuk meningkatkan perkembangan intelektual, kemampuan bekerja sama, keingintahuan, berpikir secara sistematis. Untuk mencapai hal tersebut, dilakukan penerapan Metode PAKEM di SMK Migas Cibinong, dengan penyuluhan dan pelatihan menggunakan Metode Eksperimen. Penerapan metoda eksperimen ini berguna untuk dapat melihat kemampuan, keterampilan, dan keuletan masing-masing peserta. Pelatihan yang dilakukan menyebabkan siswa lebih aktif dan bersemangat dalam menyelesaikan tugasnya.

DETERMINING OF FORMATION WATER SATURATION TO ESTIMATE REMINING HYDROCARBON SATURATION IN THE X LAYER Y FIELD Ratnayu Sitaresmi; Guntur Herlambang Wijanarko; Puri Wijayanti; Danaparamita Kusumawardhani
PETRO:Jurnal Ilmiah Teknik Perminyakan Vol. 8 No. 3 (2019): SEPTEMBER
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Efforts are made to find the remaining hydrocarbons in the reservoir, requiring several methods to calculate the parameters of reservoir rock characteristics. For this reason, logging and core data are required. The purpose of this research is to estimate the Remaining Hydrocarbon Saturation that can be obtained from log data and core data. With several methods used, can determine petrophysical parameters such as rock resistivity, shale volume, effective porosity, formation water resistivity, mudfiltrate resistivity and rock resistivity in the flushed zone (Rxo) and rock resistivity in the Uninvaded Zone which will then be used to calculate the Water Saturation value Formation (Sw) and Mudfiltrat Saturation. (Sxo) In this study four exploratory wells were analyzed. Shale volume is calculated using data from Gamma Ray Log while effective Porosity is corrected for shale volume. Rw value obtained from the Pickett Plot Method is 0.5 μm. The average water saturation by Simandoux Method were 33.6%, 43.4%, 67.0% and 39.7% respectively in GW-1, GW-2, GW-3 and GW-4 wells. While the average water saturation value by the Indonesian Method were 43.9%, 48.8%, 72.3% and 44% respectively in GW-1, GW-2, GW-3 and GW-4 wells. From comparison with Sw Core, the Simandoux Method looks more appropriate. Average mudfiltrate (Sxo) saturation by Simandoux Method were 65.5%, 68.2%, 77.0% and 64.6% respectively in GW-1, GW-2, GW-3 and GW wells -4. Remaining Hydrocarbon Saturation (Shr) was obtained by 34.5%, 31.8, 23%, 35.4% of the results of parameters measured in the flushed zone namely Rxo, Rmf and Sxo data. For the price of Moving Hydrocarbons Saturation or production (Shm) is 31.9%, 24.8%, 10%, 24.9% in wells GW-1, GW-2, GW-3 and GW-4.

PERHITUNGAN GAS IN PLACE DAN RECOVERY FACTOR PADA LAPANGAN CBM SUMUR X Yusraida Khairani Dalimunthe; Def Marshal; Ratnayu Sitaresmi
PETRO:Jurnal Ilmiah Teknik Perminyakan Vol. 8 No. 3 (2019): SEPTEMBER
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

The Coal Bed Methane well X is a field developed by company A where 5 CBM test wells have been drilled. This CBM field development in 2004 by drilling wells to a depth of 3000ft, then in 2006 drilling was carried out for three test wells with an average depth of 3000ft. The research conducted at LEMIGAS aims to calculate coalbed methane reservoir reserves, calculation of reserves per seam, recovery factor, from each coal sample. The volumetric method is used in this research to calculate the methane gas reserves and Langmuir curve analysis is used to calculate the recovery factor. The target of this research is the CBM field in well X, where the well has 3 seams, namely seam-2, seam-3, and seam-4. In addition to calculating the value of methane gas reserves for each well, the methane gas reserves for each seam are also calculated. From the results of the calculation, it can be concluded that the largest value of gas in place is on seam 4 which is 573.2 MMscf and the smallest is on seam 2 which is 176.1 MMscf, then the largest recovery factor value is owned by seam 3 which is 91%.

EVALUATION OF TARIFFS OF TRANSPORTING NATURAL GAS (TOLL FEES) ON PIPE SECTION X BY ANALYZING THE SENSITIVITY THE SENSITIVITY OF THE COST OF SERVICE PARAMETERS Aulia Alfath; Bayu Satiyawira; Cahaya Rosyidan; Havidh Pramadika; Ratnayu Sitaresmi; Livia Ailen Dharma
PETRO: Jurnal Ilmiah Teknik Perminyakan Vol. 9 No. 2 (2020): JUNI
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Indonesia has large enough gas reserves to meet household and industrial needs. It's just that, the price or the existing gas-related system is not maximal yet. One of the things that can ease the burden on the state is the use of household gas networks, some people are still hesitant to use it even though the price is relatively cheap compared to LPG. In determining the gas price, one of the components that has an effect on determining the gas price is the toll fee through pipes to be channeled. So the authors aim to conduct this research in order to educate and maximize solutions for energy dependency, for example the location I took is located in North Sumatra Province, with a pipeline stretching 156.5 km from X1 to X3. With OD 16 "along 18.5 km and existing OD 12" along 138 km. The maximum capacity of the two pipes is 150 MSCFD and 75 MSCFD, and the average volume that flows is not up to 10%. The construction of the pipe requires a cost of $ 42,391,716 USD, and nearly 55% of the total is pipe material including fittings, coatings, and others. With an average annual revenue of $ 11.561943 this project alone should have been able to return on investment for less than 5 years. With tariff analysis, the amount can be optimized with volume by reducing a few dollars per MSCF, to $ 7.49 making it more economical.

SOSIALISASI DAN INSTALASI ALAT UNTUK MENGKONVERSI LIMBAH TANAMAN MENJADI BIOGAS SEBAGAI BAHAN BAKAR KOMPOR GAS DENGAN CARA SEDERHANA Ratnayu Sitaresmi; M. Taufiq Fathaddin; Harin Widiatni; Onnie Ridaliani; Lia Mega
Jurnal Abdi Masyarakat Indonesia (JAMIN) Vol 2 No 1 (2020): JURNAL ABDI MASYARAKAT INDONESIA (JAMIN)
Publisher : Universitas Trisakti

Pengabdian Kepada Masyarakat untuk tahap ketiga ini merupakan sosialisasi pemasangan alat untuk pembuatan biogas dari tanaman untuk menghidupkan kompor. Sosialisasi kepada masyarakat, khususnya kepada para ibu penggerak kader pedesaan dan anggota Pembinaan Kesejahteraan Keluarga (PKK), karena daerah tersebut tergolong kurang mendapat informasi tentang pemanfaatan limbah tanaman untuk menjadi biogas. Tujuan dari sosialisasi ini adalah agar masyarakat setempat dapat memanfaatkan limbah tanaman dalam pembuatan biogas, karena minyak maupun gas yang dibeli dari Pertamina dengan harga yang semakin mahal, membuat masyarakat di daerah tersebut berkeinginan mengetahui cara mengupayakan energi alternatif yang berasal dari limbah tanaman. Peserta sosialisasi sangat antusias untuk membuktikan bahwa alat biogas yang telah disosialisasikan selama ini dapat dimanfaatkan untuk membuat gas metana (CH4) dari limbah tanaman. Pembusukan limbah tanaman dapat menghasilkan gas metana (CH4) yang dapat digunakan untuk menghidupkan kompor gas untuk kebutuhan rumah tangga, sehingga diharapkan dapat berfungsi maksimal menggantikan bahan bakar kompor gas yang digunakan selama ini, baik dengan bahan bakar minyak maupun gas yang berasal dari energi fosil.

The Use of Critical Porosity on Grouping of Rocks Quality of Sandstone Formations Sigit Rahmawan; Ratnayu Sitaresmi; Suryo Prakoso
Journal of Earth Energy Science, Engineering, and Technology Vol. 2 No. 1 (2019): JEESET VOL. 2 NO. 1 2019
Publisher : Penerbitan Universitas Trisakti

Research in the classification of rock quality formations has been carried out by many previous researchers with various methods using core sample data. However, from this research there are still many uncertainties that are found due to the difficulty of the data observed. The study uses the critical porosity for grouping the rock quality. The study obtained evidence on the surface conditions of critical porosity values obtained by the Nur method, et al. Using data P and S wave velocity data on measuring core samples surface pressure conditions that produce different rock quality based on different criticcal porosity ranges. Rock type formed based on the critical porosity has a relation to the pore geometry and pore structure that forms the linkages of each rock type. The similarity of the formation of rock types resulting from the value of critical porosity on rock types using the Wibowo and Permadi methods. In this study ten rock types were obtained. With the formation of rock quality groups that are different from the critical porosity values, further research is needed to find out whether the acoustic log in the data log that has P wave propagation speed can be used to determine the critical porosity value and determine the rock quality classification.

The Effect of Coconut Fibres, Banana Trunk Peel and Baggasse on the Lost Circulation of the Drilling Mud Rizki Akbar; Abdul Hamid; Ratnayu Sitaresmi
Journal of Earth Energy Science, Engineering, and Technology Vol. 2 No. 2 (2019): JEESET VOL. 2 NO. 2 2019
Publisher : Penerbitan Universitas Trisakti

Lost Circulation Materials (LCM) are specially designed not to damage the penetrating formation during handling of loss circulation problems and are very effective for drilling operations worldwide. Optimization of LCM composition may stop loss circulation effectively and protect the production zone from the invasion of mud filtrate. The concentration of lost circulation materials (LCM) is a key parameter to determine the effectiveness of LCM. In this study, laboratory equipment such as the Hamilton beech mixer, Fann VG meter and API filter press are used to evaluate the effectiveness of various LCMs in dealing with loss circulation. In this research, coconut fibre, banana tree skin, and bagasse are used as LCM in various concentrations. The mud losses were simulated using an 80 mesh shaker. The quality of the muddy rheological properties wasthe basic parameters to be evaluated. The test was carried out at 80oF and 200oF. The experimental results show that bagasse has the best performance both at 80oF and 200oF as LCM compared withcoconut fibres and banana trunk. The lost circulation of mud filtrate at 80oF and 200oF due to the addition of 2 gram bagasse is 34 ml and 40 ml, respectively.

Optimization of Drillstring Design to Produce More Stable Dynamic Drilling on Horizontal Drilling by Applying Different Stiffness Combinations Dundie Prasetyo; Ratnayu Sitaresmi; Suryo Prakoso
Journal of Earth Energy Science, Engineering, and Technology Vol. 2 No. 2 (2019): JEESET VOL. 2 NO. 2 2019
Publisher : Penerbitan Universitas Trisakti

Horizontal drilling technique is one of the methodologies that have been widely implemented recently to improve the production of oil and gas wells. Several directional drilling technologies can be utilized to drill the horizontal wells, vary from the simple mud motor technology to Bottom Hole Assembly (BHA) with the advanced motorized rotary steerable system. The most common challenges that are faced on horizontal drilling process are on the torque and the stick-slip throughout drilling process, which can be a technical limiter for the length of horizontal section that would be achieved. Stick-slip is the vibration that occurs due to cyclical rotation acceleration and deceleration of the bit, BHA or drill string. This speed fluctuation can be zero to rate of penetration (ROP) or far in excess of twice the rotational speed measured at the surface. Stick-slip can significantly decrease the ROP, increases tool failures and damage, affects borehole quality, and impacts the data acquisition. Several studies had been done on the stick-slip prevention and mitigation throughout creation of new technology and drilling parameters envelope throughout drilling operation, however no study has ever been done on the modification of the design and arrangement of the BHA itself to produce more stable BHA. Drill pipe is the longest component of the drill string and hence it has biggest contribution towards the drill string dynamic. This study will focus on the analysis of the combination of several designs of the drill-pipe and heavy weight drill-pipe (HWDP) that has different stiffness and characteristic to produce less vibration, more efficient drilling operation and to create zero impact on the data acquisition measured while drilling. FEA drilling dynamic simulator was used to optimize the drill sting configuration. The calculation is made from the depth of 750 m to 2801 m. Based on the drilling simulation results of FEA modeling, it is concluded that the minimum stiffness ratio to give stability of the drill string of Well-Z7 BHA and Well-Z6 BHA is 0.012175272 and 0.07366999, respectively.

Comparison of Rock Type Determination Based on Permeability Estimation and FZI Value in Upper Cibulakan Shaly Sand Formation, ASR Field Anditya Sapta Rahesthi; Ratnayu Sitaresmi; Sigit Rahmawan
Journal of Earth Energy Science, Engineering, and Technology Vol. 2 No. 3 (2019): JEESET VOL. 2 NO. 3 2019
Publisher : Penerbitan Universitas Trisakti

Rock permeability is an important rock characteristic because it can help determine the rate of fluid production. Permeability can only be determined by direct measurement of core samples in the laboratory. Even though coring gives good results, the disadvantage is that it takes a lot of time and costs so it is not possible to do coring at all intervals. So that the well log is required to predict the level of permeability indirectly. However, the calculation of permeability prediction using well log data has a high uncertainty value, so rock typing is required so that the calculation of permeability prediction becomes more detailed. This research was conducted in an effort to determine the Hydraulic Flow Unit (HFU) of the reservoir in the well that has core data using the Flow Zone Indicator (FZI) parameter and FZI value propagation on wells that do not have core data so that the type of rock and permeability value are obtained from every well interval. From the results of the study, the reservoirs on the ASR field can be grouped into six rock types. The six rock types each have permeability as a function of validated porosity by applying it at all intervals. After FZI is calculated from log data and validated with core data, it can be seen that the results of the method produce a fairly good correlation (R2 = 0.92). Furthermore, from the permeability equation values for each different rock type, the predicted permeability results are also quite good (R2 = 0.81).

Co-Authors Abdul Hamid Ageng Warasta Anditya Sapta Rahesthi Aulia Alfath Bayu Satiyawira Cahaya Rosyidan Dalimunthe, Yusraida Khairani Danaparamita Kusumawardhani Dandi Octarizka Darmasetiawan Hakim Def Marshal Dundie Prasetyo Esaim Mustafa Abrahim Omar Guntur Herlambang Wijanarko Hari Karyadi Oetomo Harin Widiatni Harin Widyatni Havidh Pramadika Lia Mega Livia Ailen Dharma M. Taufiq Fathaddin M.G. Sriwahyuni Muhammad Taufiq Fathaddin, Muhammad Taufiq Onnie Ridaliani Pri Agung Rakhmanto puri wijayanti Rizki Akbar Sigit Rahmawan Sugiatmo Kasmungin suryo prakoso

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