Claim Missing Document
Check
Articles

Found 26 Documents
Search

An Integrated Survey of the Geochemical Study at the Blawan-Ijen Area, East Java Riska Laksmita Sari; Firman Sabila; Haeruddin Haeruddin; Eriska Saputri; Welayaturromadhona Welayaturromadhona; Hadziqul Abror; Sartika Purwandari; Agus Triono
Journal of Earth Energy Engineering Vol. 10 No. 2 (2021)
Publisher : Universitas Islam Riau (UIR) Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jeee.2021.5263

Abstract

Geothermal energy is a renewable alternative energy source. One of the analyses used to determine the characteristics of a geothermal field is water geochemical analysis. The target of this research is the Blawan-Ijen geothermal prospect area, Bondowoso. The geochemical analysis was carried out using AAS, Spectrophotometer and acid-base titration. This survey shows the characteristics of the geothermal system and geothermal fluid in the Blawan area, Ijen. From the chemical analysis of hot water, we found that the types of geothermal water fluids in the Blawan Ijen area vary. In samples BL1, BL2 and BL5 included in the type of Sulphate Water with the dominant elemental Sulphate (SO4) content is also known as Sulfuric Acid Water (Acid-Sulphate Water). Then for the BL4 sample included in the type of chloride water. This type of water is a type of geothermal fluid found in most areas with high-temperature systems. Areas with large-scale hot springs flowing with high Cl concentrations originate from deep reservoirs and indicate permeable zones in those areas. However, this area may not be located above the main upflow zone. There are several other possibilities, such as topographic influences, which can significantly impact hydrological control. The presence of chlorine gas can also identify high zones' permeable areas (e.g., faults, breccia eruptions or conduit). In contrast, BL3 samples are included in the Bicarbonate Water-type. The element HCO3 (bicarbonate) is the most dominant element (main anion) and contains CO2 gas from the chemical analysis results. HCO3 water is generally formed in marginal and near-surface areas in systems dominated by volcanic rocks, where CO2 gas and condensed water vapour into groundwater. The vapour condensation can either heat the groundwater or be heated by steam (steam heated) to form an HCO3 solution
EVALUASI PENGARUH LAJU ALIR POMPA INJEKSI TERHADAP TEKANAN POMPA INJEKSI PADA STASIUN PENGUMPUL UTAMA B JATIBARANG FIELD Fifi Izzati; Riska Laksmita Sari Riska Laksmita Sari; Adhy Rahutomo Saptandro
Jurnal Natural Vol. 18 No. 2 (2022): Jurnal Natural
Publisher : FMIPA Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/jn.v18i2.182

Abstract

After a certain period of time, the reservoir's pressure will drop to the point where petroleum can no longer flow naturally. Because of the decrease in oil production, a well will no longer have economic value. Artificial lifts or specific methods are used in wells to help oil flow to the surface in order to maintain or increase petroleum recovery. Water injection is a method of increasing oil recovery by injecting water into the well. Water injected into this well will increase pressure to the oil in the reservoir, causing it to be pushed and flow to the surface. Water treatment is typically performed at a Water Treatment Injection Plant (WTIP). WTIP performance is an activity that is used to keep reservoir pressure constant. The separation of the water that is lifted with the oil is the first step in the WTIP process. The Jatibarang Field fluid is collected at the SPU (Main Collector Station). Water from various wells will be collected at the SPU A, SPU B, SPU-Cemara, and Balongan terminals. At WTIP SPU B, the injection pump flow rate and injection pressure have a linear or directly proportional relationship. This is because as the injection pump flow rate increases, the amount of water injected increases, causing the pressure to increase. The flow rate is influenced by the amount of water received at SPU B, the condition of the pump, and the line connecting the SPU and WTIP.
Analisa Unjuk Kerja Sucker Rod Pump C-228 D – 213 – 86-7466 Sebagai Metode Pengangkatan Buatan Produksi Minyak Bumi untuk API 15° dan 45° Edward Hamid Muhammad; Hadziqul Abror; Eriska Eklezia Dwi Saputri; Riska Laksmita Sari; Welayaturromadhona Welayaturromadhona
Jurnal Teknik Mesin Vol 15 No 2 (2022): Jurnal Teknik Mesin
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jtm.15.2.945

Abstract

The oil production process is the process of extracting oil from the reservoir using the wells that have been made. In the production process there are three stages, namely primary recovery, secondary recovery and tertiary recovery. At the primary recovery stage there are two methods, namely production using natural reservoir energy (natural flow) and production using artificial lift methods (artificial lift). There are two basic principles of artificial lift, namely gas lift and pumps. The principle of the gas lift is to inject gas into the bottom of the well thereby reducing the density and pressure gradient of the reservoir fluid so that the fluid flows more easily. While the principle of the pump is to provide additional energy (head) to lift the fluid. The type of pump that is often used for shallow wells is Sucker Rod Pump. The performance of the sucker rod pump is influenced by the characteristics of the well and reservoir such as pressure, well productivity, physical properties of the fluid, as well as the depth of the well and the dimensions of the sucker rod pump. In this study, the factors studied were the physical properties of the fluid, namely the API of the fluid with variations of API 15o and API 45o, as well as the pump volumetric efficiency (Ev) of 90% and 70%. From the analysis carried out, the results obtained a). For API 15° and Ev 90% fluids: 759 stb/day and 39 hp prime mover power; and for API 15° and Ev 70%: 591 stb/day and prime mover power of 32.2 hp. b). For API 45° and Ev 90% fluids: 783 stb/day and prime mover power of 34.3 hp; and for API 45° and Ev 70%: 609 stb/day and prime mover power of 28.6 hp.
EVALUASI PERMASALAHAN GAS LOCK PADA SUMUR MT-02 DI LAPANGAN MT DENGAN METODE SENSITIVITAS FREKUENSI VSD Irvan Saputra; Eriska Eklezia Dwi Saputri; Hadziqul Abror; Riska Laksmita Sari; Welayaturromadhona
PETRO:Jurnal Ilmiah Teknik Perminyakan Vol. 11 No. 4 (2022): DESEMBER
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/petro.v11i4.15441

Abstract

Lapangan MT berlokasi di Tuban, Jawa Timur. Sumur MT-02 merupakan salah satu sumur di lapangan MT yang menggunakan Electrical Submersible Pump (ESP). Dalam pengoperasian pompa ESP di sumur MT-02 sering terjadi permasalahan gas lock. Permasalahan ini ditandai dengan kandungan free gas yang tinggi dan ikut terproduksi yang terakumulasi masuk ke dalam pompa. Apabila free gas cukup banyak ikut terproduksi pada sumur, maka efisiensi pompa mengalami penurunan dan menimbulkan permasalahan pada pompa. Untuk menangani permasalahan gas lock ini, salah satunya adalah dengan mengontrol rate produksi fluida. Hal tersebut dapat dilakukan dengan mengaplikasikan sensitivitas frekuensi Variable Speed Drive (VSD) pada sumur. Dengan perubahan frekuensi yang dapat diatur melalui Variable Speed Drive, maka rate produksi fluida dapat dikontrol sehingga dapat ditentukan rate optimum produksi fluida dimana jumlah free gas yang terproduksi masuk ke dalam pompa tidak mengganggu kinerja pompa dan mencegah terjadinya indikasi gas lock pada sumur. Hasil sensitivitas frekuensi VSD menunjukkan bahwa frekuensi optimum untuk mencegah terjadinya gas lock di sumur MT-02 berada di rentang ≤ 59,47 Hz.
Evaluasi Workover Rig N55XC-M Untuk Program Penggantian Electric Submersible Pump (ESP) Pada Sumur AMR-15 Riska Laksmita Sari; Pijar Fitrah Ababil
TEKNIKA SAINS Vol 8, No 1 (2023): TEKNIKA SAINS
Publisher : Universitas Sang Bumi Ruwa Jurai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24967/teksis.v8i1.2075

Abstract

Untuk menjaga, menaikkan atau memperpanjang produksi hidrokarbon pada sumur-sumur di Lapangan Sukowati, dilakukan beberapa cara antara lain dengan melakukan proses workover sumur. Program workover suatu sumur perlu dirancang dan dievaluasi secara seksama untuk menghindari adanya kegagalan proses atau terganggunya produksi hidrokarbon pada suatu sumur. Penelitian ini bertujuan untuk melakukan evaluasi kapasitas rig dilakukan pada rencana workover penggantian Electric Submersible Pump (ESP) pada sumur AMR-15. Proses evaluasi dilakukan dengan meninjau dua sistem rig yang digunakan dalam proses workover, yaitu hoisting system dan juga circulating system. Rotary system tidak dipertimbangkan karena pekerjaan yang dilakukan oleh rig hanya proses penggantian pompa ESP yang terdiri dari proses pencabutan dan pemasangan ulang production string beserta ESP. Parameter yang dipertimbangkan dalam perhitungan daya yang diperlukan pada hoisting system terdiri dari beban vertikal, berat dragging, berat travelling block, dan tegangan kabel pemboran. Total beban yang harus ditopang oleh menara adalah 277.405 lbs, sedangkan kapasitas dari menara adalah 428.000 lbs, atau dapat dikatakan menara hanya menggunakan 64% kapasitas yang dimiliki. Horsepower yang digunakan oleh drawwork adalah 525 HP. Tenaga yang dimiliki oleh rig adalah 750 HP, sehingga drawwork hanya menggunakan 70% dari total tenaga yang dimiliki. Tenaga yang digunakan oleh pompa hanyalah sebesar 21,83 HP.
Evaluasi Jaringan Pipa Minyak Lepas Pantai Guna Optimasi Produksi Area "WK-1" Lapangan "R" Alfan Khoirul Umam; Hadziqul Abror; Riska Laksmita Sari
Zona Laut : Jurnal Inovasi Sains Dan Teknologi Kelautan Volume 4, Nomor 3, Edisi November 2023
Publisher : Departemen Teknik Kelautan Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62012/zl.v4i3.27972

Abstract

Field "R" is an old field located in the South East Sumatra Block. The pipeline network in Area "WK-1" in field "R" has 8 platforms namely the Rama-B, Rama-D, Rama-I, S.W. Wanda-A, Wanda-A, N. Wanda-A, Gita-A, and Rama-C. There are 31 producing wells through the 8 platforms. The purpose of this research is to create a piping network model for Area "WK-1" Field "R", identify optimal or non-optimal conditions for pipelines through simulation results and matching on the pipeline network model, identify whether bottlenecking problems occur in the piping network Area "WK-1" Field "R" using the matching results on the piping network model so that the location of pipes and nodes with fluid problems can be found precisely, and carry out production optimization simulations to increase production rates oil in Area "WK-1" Field "R". Production well modeling and pipeline network modeling using a multiphase steady-state production simulator application, the models that have been made will be validated matching against actual conditions. From the results of matching the pipe network model, an analysis of pipe problems that can occur such as bottlenecks is carried out. From the network simulation results, it can be seen that there is bottlenecking on the pipeline in Area "WK-1" Field "R". This is due to the condition of the pipeline network which has been operating for quite a long time since 1974. From the simulation results, there are 2 optimization scenarios, the production capacity of each well can still be increased and the total rate of oil production increases. In the first scenario, the Bean Size setting on the Choke is 48.92 BOPD with an average increase of 1.55%. Whereas in the second scenario, by opening the pressure limits at the wellhead points, the yield is 583.25 BOPD with an average increase of 16.13%.
Studi Pendahuluan Potensi Carbon Capture Storage (CCS) Melalui Identifikasi Sumber Emisi CO2 beserta tinjauan geologi di Daerah Probolinggo, Jember, dan Bondowoso, Jawa Timur Sari, Riska Laksmita; Haeruddin, Haeruddin
Jurnal Teknologi Lingkungan Lahan Basah Vol 12, No 1 (2024): Januari 2024
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jtllb.v12i1.71804

Abstract

Carbon dioxide (CO2) is a gas compound that causes the greenhouse effect. The majority of carbon dioxide gas production is dominated by large industrial industries such as Coal Steam Power Plants (PLTU), the cement industry and fossil fuel motorized vehicles (Hydrocarbons). Several technologies have been implemented and developed, in an effort to reduce the negative impact of CO2 accumulation on the earth's surface. One of them which is currently a topical topic is Carbon Capture Storage (CCS). CCS is a storage system used to receive and store carbon releases from industry and power plants into geological formations safely and permanently with a certain capacity for a long period of time. CCS is seen as a very efficient method because it can balance achieving net zero emissions while maintaining energy security. In this research, a preliminary study was carried out in the initial step of identifying potential sources of CO2 emissions along with a review of geology as a potential CO2 storage. In the Probolinggo, Jember and Bondowoso areas. From the identification results, it was concluded that the Paiton PLTU area in Probolinggo has the largest potential for CO2 production, around 1.98 million tons/year. The grological scope of the Paiton PLTU area meets one of the CO2 Storage criteria because the formation is included in the East Kendeng sedimentary zone. However, further studies need to be carried out to validate the potential for CO2 storage in further geological, petrophysical and fault analysis
EVALUASI PERMASALAHAN GAS INTERFERENCE PADA ELECTRICAL SUBMERSIBLE PUMP DI SUMUR MD-17 Hermawan, Bagus Danial; Welayaturromadhona, Welayaturromadhona; Saputri, Eriska Eklezia Dwi; Sari, Riska Laksmita; Abror, Hadziqul
Petro : Jurnal Ilmiah Teknik Perminyakan Vol. 12 No. 3 (2023): SEPTEMBER
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/petro.v12i3.16743

Abstract

Natural flow can not be performed in the reservoir from the MD-17 well. The most likely reason is because it is classified as a mature well, so an Artificial Lift is needed. The artificial lifting mechanism used is the Electrical Submersible Pump. In this research, the writer analyze the problem of "Gassy" condition or interference. The MD-17 well problem shows that the free gas in this well is 245.213 mscf. Moreover, the amount of free gas that enters the Pump is 8%. From these problems, it causes ESP become disrupted and not produce optimally. The solution to the gas interference problem at the MD-17 Well is the bleed off method and using Advance Gas Handling. The first method is with bleed off method for improve ESP performance so that production will be stable. Then the second method of handling gas interference is by using Advance Gas Handling. From the data analysis and calculation with the formula for AGH, it can produce efficiency in dealing with Gas Interference, so can produce 64.4 mscf of gas from Pump Intake and then can increasing production.
ANALISIS PERKIRAAN LIQUID LOADING PADA SUMUR GAS DI LAPANGAN MLT Saputra, Irvan; Dwi Saputri, Eriska Eklezia; Laksmita Sari, Riska
Petro : Jurnal Ilmiah Teknik Perminyakan Vol. 12 No. 4 (2023): DESEMBER
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/petro.v12i4.17479

Abstract

Dalam memproduksikan gas bumi tentunya terdapat hal yang perlu diperhatikan, salah satunya fenonema liquid loading. Liquid loading terjadi karena sejumlah liquid yang terakumulasi dalam sumur gas yang diakibatkan kecepatan gas yang mengalami penurunan sehingga fasa gas tidak mampu mengangkat liquid ke permukaan. Dalam penelitian ini dilakukan analisis perkiraan liquid loading pada 3 sumur kandidat di Lapangan MLT dengan menggunakan persamaan Turner untuk menghitung laju alir kritis (Qcrit) pada setiap sumur. Apabila Qg < Qcrit, maka diindikasikan terjadi liquid loading pada sumur tersebut. Hasil analisis perkiraan liquid loading pada 3 sumur kandidat menunjukkan bahwa Sumur MT-04 terindikasi mengalami liquid loading dimana Qg berada dibawah Qcrit dengan laju alir kritis gas (Qg) masing – masing sumur diperoleh hasil sebesar 22,331 MMscf/d untuk Sumur MT-04, 21,962 MMscf/d untuk Sumur MT-05, dan 21,702 MMscf/d untuk Sumur MT-06. Liquid loading pada 3 kandidat sumur di Lapangan MLT diperkirakan terjadi saat tekanan reservoir mengalami penurunan seiring sumur diproduksikan dengan laju alir gas menurun dan tidak mampu mengangkat liquid ke permukaan
ANALISIS EKSPERIMENTAL PENGARUH SERBUK KOPI TERHADAP RHEOLOGI LUMPUR PEMBORAN Saputra, Irvan; Saputri, Eriska Eklezia Dwi; Triono, Agus; Abror, Hadziqul; Laksmita Sari, Riska; Welayaturromadhona
Petro : Jurnal Ilmiah Teknik Perminyakan Vol. 12 No. 4 (2023): DESEMBER
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/petro.v12i4.18419

Abstract

Pada proses pemboran, formasi yang sering kali ditembus adalah formasi yang porous, unconsolidated ataupun memiliki rekahan alami yang dapat menyebabkan terjadinya loss circulation. Jika loss circulation tidak ditangani maka tekanan hidrostatik lumpur tidak mampu mengimbangi tekanan formasi sehingga terjadi kick pada sumur bahkan blow out. Dampak lainnya yang mungkin terjadi adalah pencemaran lingkungan, waktu rig tidak beroperasi akan meningkat sehingga meningkatkan biaya pemboran. Untuk mengatasi loss circulation tersebut, lumpur pemboran yang digunakan harus memiliki kandungan beberapa jenis komponen yang berfungsi menyumbat lubang terbuka di batuan. Lumpur pemboran biasanya memiliki komponen Lost Circulation Materials (LCM) yang umum digunakan dengan bahan dasar polimer. Penelitian ini akan berfokus pemanfaatan serbuk kulit kopi dan pengaruhnya terhadap rheologi lumpur pemboran, yaitu densitas dan viskositas lumpur. Penelitian ini bersifat experimental study pada laboratorium, dengan membuat lumpur dasar dan menguji sifat dari lumpur dasar serta membandingkan sifat dari lumpur dasar yang telah ditambahkan serbuk kulit kopi. Dari analisa data yang didapat, dapat disimpulkan pengaruh serbuk kulit kopi pada rheologi lumpur pemboran.