Pandan volcano is a volcano formed on Tertiary sedimentary rocks from the Kendeng zone deposited in the basin of East Java. In addition to generating petroleum potentials, such as Cepu and Bojonegoro oil fields, this area also generates geothermal potential. As a source of heat from the geothermal system is igneous rock formed from the magmatism process. The type of rock formed by the process of magmatism in the Pandan geothermal system is basaltic-andesitic and hornblende andesite are medium-high K calk alkaline affinity located in the island arc. The interaction of hot rock from post magmatism process with hydrothermal fluid resulted in the manifestation of hot springs and calcite travertine in the study area. Prediction of the subsurface temperature of hot water from geothermometer silica analysis contained in Banyukuning and Jarikasinan show cristobalite Beta equilibrium (70oC) and quartz temperature (120oC). To study about magmatism and geothermal fluid using petrographic method and petrochemical analysis (X-ray fluorescence spectrometry method) to the sample of igneous rock. While to study the fluid type and geothermometer of geothermal fluid using data from previous researchers. This research study is expected to provide additional information on the field of geothermal and magmatism in this area.
{"title":"Magmatism and Geothermal Potential in Pandan Volcano East Java Indonesia","authors":"I. Takashima, D. Yudiantoro","doi":"10.31315/JMEL.V2I2.2214","DOIUrl":"https://doi.org/10.31315/JMEL.V2I2.2214","url":null,"abstract":"Pandan volcano is a volcano formed on Tertiary sedimentary rocks from the Kendeng zone deposited in the basin of East Java. In addition to generating petroleum potentials, such as Cepu and Bojonegoro oil fields, this area also generates geothermal potential. As a source of heat from the geothermal system is igneous rock formed from the magmatism process. The type of rock formed by the process of magmatism in the Pandan geothermal system is basaltic-andesitic and hornblende andesite are medium-high K calk alkaline affinity located in the island arc. The interaction of hot rock from post magmatism process with hydrothermal fluid resulted in the manifestation of hot springs and calcite travertine in the study area. Prediction of the subsurface temperature of hot water from geothermometer silica analysis contained in Banyukuning and Jarikasinan show cristobalite Beta equilibrium (70oC) and quartz temperature (120oC). To study about magmatism and geothermal fluid using petrographic method and petrochemical analysis (X-ray fluorescence spectrometry method) to the sample of igneous rock. While to study the fluid type and geothermometer of geothermal fluid using data from previous researchers. This research study is expected to provide additional information on the field of geothermal and magmatism in this area.","PeriodicalId":448047,"journal":{"name":"Jurnal Mineral, Energi dan Lingkungan","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121587058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This research were aimed to know the best variation as brick raw materials according to SNI 03-0349-1989 about Concrete Brick for Wall Pairs and to know Pb concentration in leachate from raw material mixture and from stabilization-solidification product. Sludge from Wastewater Treatment Plant’s Toothpaste Factory was used as a substitution of Portland cement which was varied to 10%, 30% and 50% of Portland cement. Batako were tested by external views and physical requirements according to SNI 03-0349-1989. Raw material and product of brick were analyzed by TCLP for Pb metal using Atomic Absorption Spectrophotometric method. The selected sample variation as a large hollow brick material based on SNI 03-0349-1989 is 30% of sludge substituting Portland cement with grade II quality. The concentration of Pb in leachate of brick raw material for each variation was 0.84 mg / L; 0.95 mg / L; and 1.02 mg / L. While the concentration of Pb in the leachate of brick for each variation was 0.40 mg / L; 0.45 mg / L; and 0.49 mg / L.
{"title":"Pemanfaatan Lumpur Hasil Samping IPAL Pabrik Pasta Gigi Sebagai Bahan Baku Batako Dalam Upaya Reduksi Limbah","authors":"Dwi Ratri Mitha Isnadina, Raih Panji Sampoerna, Nita Citrasari","doi":"10.31315/jmel.v2i2.2370","DOIUrl":"https://doi.org/10.31315/jmel.v2i2.2370","url":null,"abstract":"This research were aimed to know the best variation as brick raw materials according to SNI 03-0349-1989 about Concrete Brick for Wall Pairs and to know Pb concentration in leachate from raw material mixture and from stabilization-solidification product. Sludge from Wastewater Treatment Plant’s Toothpaste Factory was used as a substitution of Portland cement which was varied to 10%, 30% and 50% of Portland cement. Batako were tested by external views and physical requirements according to SNI 03-0349-1989. Raw material and product of brick were analyzed by TCLP for Pb metal using Atomic Absorption Spectrophotometric method. The selected sample variation as a large hollow brick material based on SNI 03-0349-1989 is 30% of sludge substituting Portland cement with grade II quality. The concentration of Pb in leachate of brick raw material for each variation was 0.84 mg / L; 0.95 mg / L; and 1.02 mg / L. While the concentration of Pb in the leachate of brick for each variation was 0.40 mg / L; 0.45 mg / L; and 0.49 mg / L.","PeriodicalId":448047,"journal":{"name":"Jurnal Mineral, Energi dan Lingkungan","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132200598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gravity method is a passive geophysical method that provides information on the distribution of rock density below the surface. The gravity method has a weakness at the level of ambiguity in determining the depth of the anomaly. This study aims to determine the depth of the anomaly using Continuous Wavelet Transform (CWT) analysis to overcome the value of ambiguity, so that the results obtained have a high degree of accuracy. The research method is data survey / acquisition and data analysis. This research was conducted in Karangsambung Kebumen, Central Java with the acquisition of gravitational data as many as 56 measurement points. The results of data acquisition then analyzed included reading to mGal, tool height correction, drift, tides, latitude, free air correction, Bouguer correction, and field correction. The results of this correction obtained Complete Bouguer Anomalies (ABL) values which were then reduced to flat fields and regional-residual anomaly filters. The next step is CWT analysis by making incisions on residual anomaly maps. The results showed that the source of the anomaly was between ± 39.2 - 122.9 meters.
{"title":"Analisis Continuous Wavelet Transform (CWT) Anomali Residual Medan Gravitasi Di Situs Geologi Karangsambung Kebumen Jawa Tengah","authors":"Wahyu Hidayat, Wrego Seno Giamboro","doi":"10.31315/jmel.v2i2.2368","DOIUrl":"https://doi.org/10.31315/jmel.v2i2.2368","url":null,"abstract":"Gravity method is a passive geophysical method that provides information on the distribution of rock density below the surface. The gravity method has a weakness at the level of ambiguity in determining the depth of the anomaly. This study aims to determine the depth of the anomaly using Continuous Wavelet Transform (CWT) analysis to overcome the value of ambiguity, so that the results obtained have a high degree of accuracy. The research method is data survey / acquisition and data analysis. This research was conducted in Karangsambung Kebumen, Central Java with the acquisition of gravitational data as many as 56 measurement points. The results of data acquisition then analyzed included reading to mGal, tool height correction, drift, tides, latitude, free air correction, Bouguer correction, and field correction. The results of this correction obtained Complete Bouguer Anomalies (ABL) values which were then reduced to flat fields and regional-residual anomaly filters. The next step is CWT analysis by making incisions on residual anomaly maps. The results showed that the source of the anomaly was between ± 39.2 - 122.9 meters.","PeriodicalId":448047,"journal":{"name":"Jurnal Mineral, Energi dan Lingkungan","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131402054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bauxite ore mining PT.Antam Tbk. located in Tayan Hilir Subdistrict, Sanggau Regency, West Kalimantan Province is an open pit backfilling system. Besides the bauxite ore extraction, the washing process resulted slurry which is entering the open channel towards the sedimentation pond. This study aims to determine the total discharge of slurry that will enter the sedimentation pond and assess the capacity of existing sedimentation ponds. The results showed that based on the production target of 700,000 tons of Bauxite Washed/year with 60% concretion factor data, the total discharge of water entering the sedimentation pond was 3.54 m3/sec. The slurry from the open channel will go into the sedimentation pond so that the deposition found in Segment I, IV, V, and VI was 409.06 m3/day, 254.59 m3/day, 561.35 m3/day, and 273.90 m3/day respectivelly. Intensive dredging material will be carried out using two Hitachi Zaxis 210 LC Long-Arm Excavator units. The cleaning time needed by Segment I, IV, V, and VI are 10 days, 6 days, 9 days and 5 days, so that the dredging time of Segment I, IV, V, and VI are 82 days, 65 days, 53 days and 62 days respectivelly
{"title":"Penanganan Kolam Sedimentasi Hasil Pencucian Bauksit Di PT. ANTAM Tbk. Tayan","authors":"M. Ridho, Peter Eka Rosadi","doi":"10.31315/jmel.v2i2.2157","DOIUrl":"https://doi.org/10.31315/jmel.v2i2.2157","url":null,"abstract":"Bauxite ore mining PT.Antam Tbk. located in Tayan Hilir Subdistrict, Sanggau Regency, West Kalimantan Province is an open pit backfilling system. Besides the bauxite ore extraction, the washing process resulted slurry which is entering the open channel towards the sedimentation pond. This study aims to determine the total discharge of slurry that will enter the sedimentation pond and assess the capacity of existing sedimentation ponds. The results showed that based on the production target of 700,000 tons of Bauxite Washed/year with 60% concretion factor data, the total discharge of water entering the sedimentation pond was 3.54 m3/sec. The slurry from the open channel will go into the sedimentation pond so that the deposition found in Segment I, IV, V, and VI was 409.06 m3/day, 254.59 m3/day, 561.35 m3/day, and 273.90 m3/day respectivelly. Intensive dredging material will be carried out using two Hitachi Zaxis 210 LC Long-Arm Excavator units. The cleaning time needed by Segment I, IV, V, and VI are 10 days, 6 days, 9 days and 5 days, so that the dredging time of Segment I, IV, V, and VI are 82 days, 65 days, 53 days and 62 days respectivelly","PeriodicalId":448047,"journal":{"name":"Jurnal Mineral, Energi dan Lingkungan","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134453829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Phytoremediation is one of alternative methods to remove pollutant in leachate. Leachate from Jetis Landfill was applied in this research. The purposes of the study were to analysis the change of BOD and COD concentration using Nymphaea sp. and Pistia stratiotes L. and to observe plants condition.The research was carried out by laboratory experiment. Tools and materials used in this research were reactors with 50 L capacity, 455 L of leachate, 12 pcs of Nymphaea sp., 120 pcs of Pistia stratiotes L., 12 kg of palm fiber, and 120 kg of gravel. There were 25 reactors consisted of 1 control reactor, 12 reactors with 3 day of resident time (H3) and 12 reactors with 7 days of resident time (H7). Each of reactors is filled with 15-20 L of leachate which consisted of only plant reactors (T or A) and palm fiber, gravel and plant reactors (TIK or AIK). Each reactor was tested the BOD and COD. Plant conditions were observed daily. Changes of BOD and COD levels for each treatment presented in graphs then analysed descriptively.The results showed that BOD and COD levels of each reactor were lower than control. The difference was relatively small. The AIK-H7 reactor was the most optimum in reducing BOD levels, although the percentage of reduction only 24.11%. In TIK-H7, the COD level was 576 mg/L, the reduction percentage reached 23,6%. The plant observation, found on the 3rd day of treatment, the leaves of the Nymphaea sp. have begun to decay, while the leaves of the Pistia stratiotes L. have started to dry and turn yellow. On the 7th day the whole plant was died. Phytoremediation with Nymphaea sp. and Pistia stratiotes L. in this research was not maximum to remove BOD and COD in leachate of Jetis Landfill.
{"title":"Kadar BOD dan COD Air Lindi dengan Perlakuan Fitoremidiasi Tanaman Teratai (Nymphaea Sp.) dan Apu-Apu (Pistia stratiotes L.) (Studi Kasus TPA Jetis Purworejo)","authors":"Eni Muryani, Ika Wahyuning Widiarti","doi":"10.31315/JMEL.V2I2.2389","DOIUrl":"https://doi.org/10.31315/JMEL.V2I2.2389","url":null,"abstract":"Phytoremediation is one of alternative methods to remove pollutant in leachate. Leachate from Jetis Landfill was applied in this research. The purposes of the study were to analysis the change of BOD and COD concentration using Nymphaea sp. and Pistia stratiotes L. and to observe plants condition.The research was carried out by laboratory experiment. Tools and materials used in this research were reactors with 50 L capacity, 455 L of leachate, 12 pcs of Nymphaea sp., 120 pcs of Pistia stratiotes L., 12 kg of palm fiber, and 120 kg of gravel. There were 25 reactors consisted of 1 control reactor, 12 reactors with 3 day of resident time (H3) and 12 reactors with 7 days of resident time (H7). Each of reactors is filled with 15-20 L of leachate which consisted of only plant reactors (T or A) and palm fiber, gravel and plant reactors (TIK or AIK). Each reactor was tested the BOD and COD. Plant conditions were observed daily. Changes of BOD and COD levels for each treatment presented in graphs then analysed descriptively.The results showed that BOD and COD levels of each reactor were lower than control. The difference was relatively small. The AIK-H7 reactor was the most optimum in reducing BOD levels, although the percentage of reduction only 24.11%. In TIK-H7, the COD level was 576 mg/L, the reduction percentage reached 23,6%. The plant observation, found on the 3rd day of treatment, the leaves of the Nymphaea sp. have begun to decay, while the leaves of the Pistia stratiotes L. have started to dry and turn yellow. On the 7th day the whole plant was died. Phytoremediation with Nymphaea sp. and Pistia stratiotes L. in this research was not maximum to remove BOD and COD in leachate of Jetis Landfill.","PeriodicalId":448047,"journal":{"name":"Jurnal Mineral, Energi dan Lingkungan","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117018892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Penanganan AAT yang banyak dilakukan di perusahaan tambang batubara dengan cara pengapuran masih kurang efektif karena penggunaan kapur hanya untuk meningkatkan pH rendah menjadi pH netral, namun tidak dapat menurunkan kandungan logam Fe dan Mn. Aplikasi penggunaan fly ash skala laboratorium dengan volume AAT 250ml menunjukkan bahwa adanya penambahan massa fly ash dan kecepatan pengadukan terjadi peningkatan pH dan penurunan konsentrasi logam Fe dan Mn. Fly ash batubara mengandung senyawa mineral utama yaitu kuarsa (SiO2) dan mullite (Al6Si2O13) yang berperan pada proses adsorpsi antara logam berat dengan adsorben fly ash dalam larutan mengandung air. Berdasarkan hasil analisis, efektifitas massa fly ash terhadap perubahan kadar pH rata-rata sebesar 63,11%. Selanjutnya efektifitas massa fly ash terhadap perubahan konsentrasi logam Fe rata-rata sebesar 85,95%, sedangkan efektifitas massa fly ash terhadap perubahan konsentrasi logam Mn rata-rata sebesar 81,77%. Oleh karena itu, kapasitas adsorpsi logam Fe lebih besar daripada kapasitas adsorpsi logam Mn yaitu kapasitas adsorpsi logam Fe sebesar 4,938 mg/g sedangkan kapasitas adsorpsi logam Mn sebesar 4,296 mg/g mengikuti model adsorpsi isotherm Freundlich.
{"title":"Efektifitas Pemanfaatan Fly Ash Batubara Sebagai Adsorben Dalam Menetralisir Air Asam Tambang pada Settling Pond Penambangan Banko PT. Bukit Asam (Persero), Tbk","authors":"Alieftiyani Paramita Gobel","doi":"10.31315/JMEL.V2I1.2113","DOIUrl":"https://doi.org/10.31315/JMEL.V2I1.2113","url":null,"abstract":"Penanganan AAT yang banyak dilakukan di perusahaan tambang batubara dengan cara pengapuran masih kurang efektif karena penggunaan kapur hanya untuk meningkatkan pH rendah menjadi pH netral, namun tidak dapat menurunkan kandungan logam Fe dan Mn. Aplikasi penggunaan fly ash skala laboratorium dengan volume AAT 250ml menunjukkan bahwa adanya penambahan massa fly ash dan kecepatan pengadukan terjadi peningkatan pH dan penurunan konsentrasi logam Fe dan Mn. Fly ash batubara mengandung senyawa mineral utama yaitu kuarsa (SiO2) dan mullite (Al6Si2O13) yang berperan pada proses adsorpsi antara logam berat dengan adsorben fly ash dalam larutan mengandung air. Berdasarkan hasil analisis, efektifitas massa fly ash terhadap perubahan kadar pH rata-rata sebesar 63,11%. Selanjutnya efektifitas massa fly ash terhadap perubahan konsentrasi logam Fe rata-rata sebesar 85,95%, sedangkan efektifitas massa fly ash terhadap perubahan konsentrasi logam Mn rata-rata sebesar 81,77%. Oleh karena itu, kapasitas adsorpsi logam Fe lebih besar daripada kapasitas adsorpsi logam Mn yaitu kapasitas adsorpsi logam Fe sebesar 4,938 mg/g sedangkan kapasitas adsorpsi logam Mn sebesar 4,296 mg/g mengikuti model adsorpsi isotherm Freundlich.","PeriodicalId":448047,"journal":{"name":"Jurnal Mineral, Energi dan Lingkungan","volume":"11 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126170004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
AbstrakKegiatan penambangan oleh masyarakat di Kabupaten Kulonprogo dilakukan tanpa didahului kajian kelayakan teknis sehingga berpotensi mengakibatkan kerusakan lahan dan kecelakaan bagi penambang dan masyarakat. Kegiatan evaluasi kelayakan teknis penambangan rakyat batugamping merupakan serangkaian kegiatan yang dilakukan dalam rangka penetapan Wilayah Pertambangan Rakyat khususnya di Kabupaten Kulon Progo. Kegiatan penambangan batugamping di Kabupten Kulon Progo banyak dilakukan di Desa Sendangsari, Kacamatan Pengasih. Tujuan utama penelitian ini adalah mengetahui kelayakan teknis penambangan rakyat material batugamping. Dengan mengetahui kelayakan teknis nantinya diharapkan dapat menjadi pertimbangan pemerintah dalam usaha penetapan Wilayah Pertambangan Rakyat khususnya komoditas batugamping di daerah penelitian. Penelitian yang dilakukan merupakan jenis penelitian survei dan pemetaan. Metode yang digunakan penelitian ini adalah metode survey dan pemetaan, wawancara serta dan analisis pengharkatan(skoring). Hasil penelitian menunjukkan bahwa berdasarkan evaluasi, terdapat 4 lokasi penambangan batugamping di daerah penelitian dimana satu diantaranya sudah tidak aktif sedangkan tiga lokasi lainnya masih aktif. Kegiatan penambangan yang masih aktif tersebut terdapat di Dusun Paingan dan Dusun Secang. Secara kelayakan teknis pada ke tiga lokasi kegiatan penambangan batugamping dinyatakan kurang layak secara teknis.
{"title":"Evaluasi Kelayakan Teknis Penambangan Rakyat Batugamping Desa Sendangsari, Kecamatan Pengasih, Kabupaten Kulon Progo","authors":"Dian Hudawan Santoso","doi":"10.31315/jmel.v2i1.2178","DOIUrl":"https://doi.org/10.31315/jmel.v2i1.2178","url":null,"abstract":"AbstrakKegiatan penambangan oleh masyarakat di Kabupaten Kulonprogo dilakukan tanpa didahului kajian kelayakan teknis sehingga berpotensi mengakibatkan kerusakan lahan dan kecelakaan bagi penambang dan masyarakat. Kegiatan evaluasi kelayakan teknis penambangan rakyat batugamping merupakan serangkaian kegiatan yang dilakukan dalam rangka penetapan Wilayah Pertambangan Rakyat khususnya di Kabupaten Kulon Progo. Kegiatan penambangan batugamping di Kabupten Kulon Progo banyak dilakukan di Desa Sendangsari, Kacamatan Pengasih. Tujuan utama penelitian ini adalah mengetahui kelayakan teknis penambangan rakyat material batugamping. Dengan mengetahui kelayakan teknis nantinya diharapkan dapat menjadi pertimbangan pemerintah dalam usaha penetapan Wilayah Pertambangan Rakyat khususnya komoditas batugamping di daerah penelitian. Penelitian yang dilakukan merupakan jenis penelitian survei dan pemetaan. Metode yang digunakan penelitian ini adalah metode survey dan pemetaan, wawancara serta dan analisis pengharkatan(skoring). Hasil penelitian menunjukkan bahwa berdasarkan evaluasi, terdapat 4 lokasi penambangan batugamping di daerah penelitian dimana satu diantaranya sudah tidak aktif sedangkan tiga lokasi lainnya masih aktif. Kegiatan penambangan yang masih aktif tersebut terdapat di Dusun Paingan dan Dusun Secang. Secara kelayakan teknis pada ke tiga lokasi kegiatan penambangan batugamping dinyatakan kurang layak secara teknis.","PeriodicalId":448047,"journal":{"name":"Jurnal Mineral, Energi dan Lingkungan","volume":"125 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124548487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gas lift is one of the artificial lift method that has mechanism to decrease the flowing pressure gradient in the pipe or relieving the fluid column inside the tubing by injecting amount of gas into the annulus between casing and tubing. The volume of injected gas was inversely proportional to decreasing of flowing pressure gradient, the more volume of gas injected the smaller the pressure gradient. Increasing flowrate is expected by decreasing pressure gradient, but it does not always obtained when the well is in optimum condition. The increasing of flow rate will not occured even though the volume of injected gas is abundant. Therefore, the precisely design of gas lift included amount of cycle, gas injection volume and oil recovery estimation is needed. At the begining well AB-1 using artificial lift method that was continuos gas lift with PI value assumption about 0.5 STB/D/psi. Along with decreasing of production flow rate dan availability of the gas injection in brownfield, so this well must be analyze to determined the appropriate production method under current well condition. There are two types of gas lift method, continuous and intermittent gas lift. Each type of gas lift has different optimal condition to increase the production rate. The optimum conditions of continuous gaslift are high productivity 0.5 STB/D/psi and minimum production rate 100 BFPD. Otherwise, the intermittent gas lift has limitations PI and production rate which is lower than continuous gas lift.The results of the analysis are Well AB-1 has production rate gain amount 20.75 BFPD from 23 BFPD became 43.75 BFPD with injected gas volume 200 MSCFPD and total cycle 13 cycle/day. This intermittent gas lift design affected gas injection volume efficiency amount 32%.
{"title":"Optimasi Intermittent Gas lift Pada Sumur AB-1 Lapangan Brownfield","authors":"M. Helmy","doi":"10.31315/JMEL.V2I1.2182","DOIUrl":"https://doi.org/10.31315/JMEL.V2I1.2182","url":null,"abstract":"Gas lift is one of the artificial lift method that has mechanism to decrease the flowing pressure gradient in the pipe or relieving the fluid column inside the tubing by injecting amount of gas into the annulus between casing and tubing. The volume of injected gas was inversely proportional to decreasing of flowing pressure gradient, the more volume of gas injected the smaller the pressure gradient. Increasing flowrate is expected by decreasing pressure gradient, but it does not always obtained when the well is in optimum condition. The increasing of flow rate will not occured even though the volume of injected gas is abundant. Therefore, the precisely design of gas lift included amount of cycle, gas injection volume and oil recovery estimation is needed. At the begining well AB-1 using artificial lift method that was continuos gas lift with PI value assumption about 0.5 STB/D/psi. Along with decreasing of production flow rate dan availability of the gas injection in brownfield, so this well must be analyze to determined the appropriate production method under current well condition. There are two types of gas lift method, continuous and intermittent gas lift. Each type of gas lift has different optimal condition to increase the production rate. The optimum conditions of continuous gaslift are high productivity 0.5 STB/D/psi and minimum production rate 100 BFPD. Otherwise, the intermittent gas lift has limitations PI and production rate which is lower than continuous gas lift.The results of the analysis are Well AB-1 has production rate gain amount 20.75 BFPD from 23 BFPD became 43.75 BFPD with injected gas volume 200 MSCFPD and total cycle 13 cycle/day. This intermittent gas lift design affected gas injection volume efficiency amount 32%.","PeriodicalId":448047,"journal":{"name":"Jurnal Mineral, Energi dan Lingkungan","volume":"149 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133865755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sumur AP#1 berada pada Formasi W di lapangan lirik dan telah diproduksikan sejak tahun 1975. Seiring berjalannya waktu, produksi minyak sumur AP#1 yang berada pada lapisan G1, G2, G3 tidak lagi ekonomis untuk diproduksikan, hal ini disebabkan kadar air yang telah mencapai 100%. Lapisan M1 dan M2 merupakan lapisan yang mengandung hidrokarbon yang akan diusulkan untuk dilakukan pekerjaan workover (KUPL). Interpretasi RST log digunakan sebagai acuan dalam pengusulan lapisan yang mengandung hidrokarbon tersebut. Namun demikian, untuk memaksimalkan hasil dan agar lebih meyakinkan adanya akumulasi cadangan oil current dikedua lapisan tersebut maka perlu dilakukannya analisis potensi hidrokarbon.Analisis potensi hidrokarbon dilakukan menggunakan model Simandoux dan RST log. Sementara itu, nilai saturasi oil residual (Sor) digunakan dari data core (SCAL) dan untuk mendapatkan hasil potensi hidrokarbon yang lebih akurat dan selanjutnya menghitung cadangan oil current menggunakan RST log.Hasil analisis potensi hidrokarbon pada lapisan M1 diperoleh nilai saturasi oil awal (Soi) 67% dan (So) current 37.6%. Nilai (So) current tersebut sesuai dengan kondisi actual sumur dan masih berada di atas nilai saturasi oil residual (Sor) sebesar 22% dengan nilai moveable hydrocarbon index (MHI) current yang diperoleh (0.686) < 0.7, sehingga lapisan M1 masih berpotensi untuk diproduksi. Lapisan M2 diperoleh nilai awal (Soi) 29.8% dan (So) current 38.4%. Nilai (So) current tersebut tidak sesuai dengan kondisi actual sumur dan jika dilihat dari nilai awal (Soi) 29.8% yang hampir mendekati nilai (Sor) sebesar 22%, dengan nilai MHI awal (0.753) > 0.7, sehingga lapisan M2 kurang berpotensi untuk diproduksikan. Hasil perhitungan cadangan oil current pada lapisan M1 diperoleh nilai recovery factor (RF) sebesar 41.4%, sehingga nilai volumetric recoverable oil reserves (Nr) diperoleh sebesar 67 MSTB dan Lapisan M2 diperoleh nilai RF sebesar 42.8% dengan nilai Nr sebesar 94 MSTB
{"title":"Analisis Potensi Hidrokarbon dan Perhitungan Cadanagan Oil Current Lapisan M1 dan M2 pada Formasi W Sumur AP#1 Lapangan Lirik","authors":"Muslim Abdurrahman","doi":"10.31315/JMEL.V2I1.2215","DOIUrl":"https://doi.org/10.31315/JMEL.V2I1.2215","url":null,"abstract":"Sumur AP#1 berada pada Formasi W di lapangan lirik dan telah diproduksikan sejak tahun 1975. Seiring berjalannya waktu, produksi minyak sumur AP#1 yang berada pada lapisan G1, G2, G3 tidak lagi ekonomis untuk diproduksikan, hal ini disebabkan kadar air yang telah mencapai 100%. Lapisan M1 dan M2 merupakan lapisan yang mengandung hidrokarbon yang akan diusulkan untuk dilakukan pekerjaan workover (KUPL). Interpretasi RST log digunakan sebagai acuan dalam pengusulan lapisan yang mengandung hidrokarbon tersebut. Namun demikian, untuk memaksimalkan hasil dan agar lebih meyakinkan adanya akumulasi cadangan oil current dikedua lapisan tersebut maka perlu dilakukannya analisis potensi hidrokarbon.Analisis potensi hidrokarbon dilakukan menggunakan model Simandoux dan RST log. Sementara itu, nilai saturasi oil residual (Sor) digunakan dari data core (SCAL) dan untuk mendapatkan hasil potensi hidrokarbon yang lebih akurat dan selanjutnya menghitung cadangan oil current menggunakan RST log.Hasil analisis potensi hidrokarbon pada lapisan M1 diperoleh nilai saturasi oil awal (Soi) 67% dan (So) current 37.6%. Nilai (So) current tersebut sesuai dengan kondisi actual sumur dan masih berada di atas nilai saturasi oil residual (Sor) sebesar 22% dengan nilai moveable hydrocarbon index (MHI) current yang diperoleh (0.686) < 0.7, sehingga lapisan M1 masih berpotensi untuk diproduksi. Lapisan M2 diperoleh nilai awal (Soi) 29.8% dan (So) current 38.4%. Nilai (So) current tersebut tidak sesuai dengan kondisi actual sumur dan jika dilihat dari nilai awal (Soi) 29.8% yang hampir mendekati nilai (Sor) sebesar 22%, dengan nilai MHI awal (0.753) > 0.7, sehingga lapisan M2 kurang berpotensi untuk diproduksikan. Hasil perhitungan cadangan oil current pada lapisan M1 diperoleh nilai recovery factor (RF) sebesar 41.4%, sehingga nilai volumetric recoverable oil reserves (Nr) diperoleh sebesar 67 MSTB dan Lapisan M2 diperoleh nilai RF sebesar 42.8% dengan nilai Nr sebesar 94 MSTB","PeriodicalId":448047,"journal":{"name":"Jurnal Mineral, Energi dan Lingkungan","volume":"26 9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126060897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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