Pub Date : 2019-09-12DOI: 10.25105/PETRO.V8I3.5513
R. Wardana, Bastian Andoni
Rotary Steerable System (RSS) has transformed the directional drilling industry by producing smoother borehole, reducing torque and drag and enhancing the Rate Of Penetration (ROP). Despite the advantages of using RSS, the conventional steerable motor is still widely used in deviated well due to its lower daily cost. Therefore, to optimize the performance and the cost of the drilling operation, it is critical to analyze when the RSS outweigh the conventional mud motor. This paper analyzes the performance between Rotary Steerable System and Conventional Steerable Motor, based on these following parameters: Rate of Penetration (ROP), overall drilling cost, borehole quality and lost in hole cost. This empirical study uses literature study and quantitative data analysis from several wells in Mavvar Field in compliment. The result shows that the Rotary Steerable System (RSS) provides better performance and more efficient in cost.
{"title":"PERFORMANCE COMPARISON ANALYSIS BETWEEN RSS AND CONVENTIONAL MUD MOTOR IN MAVVAR FIELD","authors":"R. Wardana, Bastian Andoni","doi":"10.25105/PETRO.V8I3.5513","DOIUrl":"https://doi.org/10.25105/PETRO.V8I3.5513","url":null,"abstract":"Rotary Steerable System (RSS) has transformed the directional drilling industry by producing smoother borehole, reducing torque and drag and enhancing the Rate Of Penetration (ROP). Despite the advantages of using RSS, the conventional steerable motor is still widely used in deviated well due to its lower daily cost. Therefore, to optimize the performance and the cost of the drilling operation, it is critical to analyze when the RSS outweigh the conventional mud motor. This paper analyzes the performance between Rotary Steerable System and Conventional Steerable Motor, based on these following parameters: Rate of Penetration (ROP), overall drilling cost, borehole quality and lost in hole cost. This empirical study uses literature study and quantitative data analysis from several wells in Mavvar Field in compliment. The result shows that the Rotary Steerable System (RSS) provides better performance and more efficient in cost.","PeriodicalId":435945,"journal":{"name":"PETRO:Jurnal Ilmiah Teknik Perminyakan","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127893209","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}
Pub Date : 2019-09-12DOI: 10.25105/PETRO.V8I3.5508
A. Rudiyono
The oil potential from low quality reservoir of Field “X” is big and current recovery is not optimum yet. The typical low quality reservoir with low permeability characteristic is commonly not optimum if it is developed using common vertical well and horizontal well. These methods give low fluid rate deliverables that impact on low recovery and also operational challenges on artificial lift performance since not working on optimum range condition. To improve production performance and recovery, it is required the advanced method such as horizontal drilling using hydraulic multi step fracturing. However horizontal drilling using hydraulic multi step fracturing method need higher capital expenditure and more complex operational aspect during execution. On the current oil price condition, it is required comprehensive investment analysis for decision analysis consideration by performing oil price and investment cost sensitivity analysis, development scenario whether it is delay option, call option or put option. This research performs economic analysis using both Cost recovery PSC system and Gross Split PSC system. For economic analysis method, it use conventional Discounted Cash Flow (DCF) and Real Option to understand the value of flexibility that important for decision consideration.The economic analysis of low permeability reservoir development for 6 wells indicate that this project need 17.6 MM US$ capital expenditure, and will recover oil volume around 1.89 MMBO. Economic evaluation using DCF method with discount rate 10.8% indicate the economic indices for PSC Cost recovery (NPV = 6.08 MM US$, IRR= 28.9%, POT= 0.997 years, PI= 1.28 and Value Creation (VC) 10.65 MM US$) and for PSC Gross Split (NPV = 10.64 MM $US, IRR= 29.0%, POT= 1.517 years, PI= 1.49 and value creation (VC) 1.94 MM US$). Economic analysis using Real Option method with Black Scholes Merton (BSM) indicate that this project will deliver call option value around 9.8 MM US$ with value of flexibility around 3.7 MM US$ for PSC cost recovery. Meanwhile Real Option analysis for PSC gross split gives call option value around 10.7 MM US$ and value of flexibility around 4.1 MM US$. The 2 (two) methods recommend that this project economically feasible and suggest to execute the project as planned schedule (call to expand). According to the operational and economic assumption, it is suggested that Gross Split PSC system is potentially better on economic outcome than PSC cost recovery for the contractor (KKKS).
{"title":"PROJECT ECONOMIC EVALUATION OF LOW PERMEABILITY RESERVOIR DEVELOPMENT USING DISCOUNTED CASH FLOW METHOD AND REAL OPTION ANALYSIS FOR INVESTMENT DECISION","authors":"A. Rudiyono","doi":"10.25105/PETRO.V8I3.5508","DOIUrl":"https://doi.org/10.25105/PETRO.V8I3.5508","url":null,"abstract":"The oil potential from low quality reservoir of Field “X” is big and current recovery is not optimum yet. The typical low quality reservoir with low permeability characteristic is commonly not optimum if it is developed using common vertical well and horizontal well. These methods give low fluid rate deliverables that impact on low recovery and also operational challenges on artificial lift performance since not working on optimum range condition. To improve production performance and recovery, it is required the advanced method such as horizontal drilling using hydraulic multi step fracturing. However horizontal drilling using hydraulic multi step fracturing method need higher capital expenditure and more complex operational aspect during execution. On the current oil price condition, it is required comprehensive investment analysis for decision analysis consideration by performing oil price and investment cost sensitivity analysis, development scenario whether it is delay option, call option or put option. This research performs economic analysis using both Cost recovery PSC system and Gross Split PSC system. For economic analysis method, it use conventional Discounted Cash Flow (DCF) and Real Option to understand the value of flexibility that important for decision consideration.The economic analysis of low permeability reservoir development for 6 wells indicate that this project need 17.6 MM US$ capital expenditure, and will recover oil volume around 1.89 MMBO. Economic evaluation using DCF method with discount rate 10.8% indicate the economic indices for PSC Cost recovery (NPV = 6.08 MM US$, IRR= 28.9%, POT= 0.997 years, PI= 1.28 and Value Creation (VC) 10.65 MM US$) and for PSC Gross Split (NPV = 10.64 MM $US, IRR= 29.0%, POT= 1.517 years, PI= 1.49 and value creation (VC) 1.94 MM US$). Economic analysis using Real Option method with Black Scholes Merton (BSM) indicate that this project will deliver call option value around 9.8 MM US$ with value of flexibility around 3.7 MM US$ for PSC cost recovery. Meanwhile Real Option analysis for PSC gross split gives call option value around 10.7 MM US$ and value of flexibility around 4.1 MM US$. The 2 (two) methods recommend that this project economically feasible and suggest to execute the project as planned schedule (call to expand). According to the operational and economic assumption, it is suggested that Gross Split PSC system is potentially better on economic outcome than PSC cost recovery for the contractor (KKKS).","PeriodicalId":435945,"journal":{"name":"PETRO:Jurnal Ilmiah Teknik Perminyakan","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116673802","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}
Pub Date : 2019-09-12DOI: 10.25105/PETRO.V8I3.5512
J. Sinaga
Salah satu problema dalam kegiatan produksi sumur minyak adalah ikut terproduksinya air formasi bersama-sama dengan minyak. Sumur J-001 yang diteliti dalam makalah ini mulai berproduksi sejak Maret 2015 dengan produksi awal 1144 bfpd/1138/bopd/WC 0.52%. Produksi minyak terus mengalami penurunan seiring dengan peningkatan water cut yang mencapai hingga 98%. Untuk mendiagnostik permasalahan yang terjadi dilakukan plot diagnostik Chan. Plot diagnostik Chan merupakan plot Water Oil Ratio dan Water Oil Ratio derivatif terhadap waktu untuk mengetahui adanya peningkatan produksi air yang tidak normal. Berdasarkan plot Chan terdapat indikasi bahwa sumur ini mengalami water channeling berupa near borehole channeling, dan berdasarkan data log petrofisika dan log CBL diputuskan untuk melakukan remedial cementing pada interval zona target dan di antara zona target dan zona air. Berdasarkan indikator nilai amplitudo, variable density log, dan transit time, remedial cementing pada Sumur J-001 berhasil memperbaiki ikatan semen baik di zona target maupun di zona sekat air. Grafik kinerja produksi setelah remedial cementing menunjukkan adanya penurunan water cut dari 98% menjadi 87-90%. Produksi minyak mengalami kenaikan dari 3 bopd menjadi rata-rata 144 bopd. Plot diagnostik Chan Sumur J-001 setelah remedial menunjukkan nilai WOR dan WOR’ yang stabil sehingga dapat disimpulkan bahwa near borehole channeling yang terjadi pada Sumur J-001 dapat tertangani dengan baik.
{"title":"EVALUASI HASIL REMEDIAL CEMENTING TERHADAP KINERJA PRODUKSI SUMUR MINYAK DENGAN PERMASALAHAN WATER CHANNELING","authors":"J. Sinaga","doi":"10.25105/PETRO.V8I3.5512","DOIUrl":"https://doi.org/10.25105/PETRO.V8I3.5512","url":null,"abstract":"Salah satu problema dalam kegiatan produksi sumur minyak adalah ikut terproduksinya air formasi bersama-sama dengan minyak. Sumur J-001 yang diteliti dalam makalah ini mulai berproduksi sejak Maret 2015 dengan produksi awal 1144 bfpd/1138/bopd/WC 0.52%. Produksi minyak terus mengalami penurunan seiring dengan peningkatan water cut yang mencapai hingga 98%. Untuk mendiagnostik permasalahan yang terjadi dilakukan plot diagnostik Chan. Plot diagnostik Chan merupakan plot Water Oil Ratio dan Water Oil Ratio derivatif terhadap waktu untuk mengetahui adanya peningkatan produksi air yang tidak normal. Berdasarkan plot Chan terdapat indikasi bahwa sumur ini mengalami water channeling berupa near borehole channeling, dan berdasarkan data log petrofisika dan log CBL diputuskan untuk melakukan remedial cementing pada interval zona target dan di antara zona target dan zona air. Berdasarkan indikator nilai amplitudo, variable density log, dan transit time, remedial cementing pada Sumur J-001 berhasil memperbaiki ikatan semen baik di zona target maupun di zona sekat air. Grafik kinerja produksi setelah remedial cementing menunjukkan adanya penurunan water cut dari 98% menjadi 87-90%. Produksi minyak mengalami kenaikan dari 3 bopd menjadi rata-rata 144 bopd. Plot diagnostik Chan Sumur J-001 setelah remedial menunjukkan nilai WOR dan WOR’ yang stabil sehingga dapat disimpulkan bahwa near borehole channeling yang terjadi pada Sumur J-001 dapat tertangani dengan baik.","PeriodicalId":435945,"journal":{"name":"PETRO:Jurnal Ilmiah Teknik Perminyakan","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125478097","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}
Pub Date : 2019-09-12DOI: 10.25105/PETRO.V8I3.5514
R. Sitaresmi, G. Wijanarko, P. Wijayanti, Danaparamita Kusumawardhani
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.
{"title":"DETERMINING OF FORMATION WATER SATURATION TO ESTIMATE REMINING HYDROCARBON SATURATION IN THE X LAYER Y FIELD","authors":"R. Sitaresmi, G. Wijanarko, P. Wijayanti, Danaparamita Kusumawardhani","doi":"10.25105/PETRO.V8I3.5514","DOIUrl":"https://doi.org/10.25105/PETRO.V8I3.5514","url":null,"abstract":"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.","PeriodicalId":435945,"journal":{"name":"PETRO:Jurnal Ilmiah Teknik Perminyakan","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133454652","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}
Pub Date : 2019-09-12DOI: 10.25105/PETRO.V8I3.5509
C. Rosyidan
Drilling operations always require fluid in their activities. Because to penetrate the soil and rocks will be very easy with the use of fluid. The fluid will help soften the soil and rocks making it easier for the drill bit to penetrate it. Drilling fluid is also needed to attach the casing to the drill wall. So that the wall does not collapse, as media logging and so on. Of course, each drilling zone (surface zone, intermediate zone, and production zone) has different characteristics and different additive substances are needed. This study wants to find out the function of the use of calcium chloride additives on the nature of cement hardness and choking time. This research is important because it will be known this addictive nature as a retarder or accelerator. By knowing the nature of this additive so that it can be used in the right zone. Testing on Calcium Chloride additive for the value of compressive strength is very effective at a concentration of 8%, 24-hour immersion time and a temperature of 150 ° F with a test result of 4483 psi. Whereas, at temperatures of 80 ° F and 100 ° F, the maximum value of compressive strength for Calcium Chloride additive occurs at a concentration of 10% with a test result of 2393 psi and 2888 psi. Based on the data presented, temperature plays an important role in testing the thickening time of a cement sample. The addition of calcium chloride additive functions as an accelerator.
{"title":"THE EFFECT OF USING CALCIUM CHLORIDE IN G CLASS CEMENT ON STARTING TIME AND CEMENT PRESSURE","authors":"C. Rosyidan","doi":"10.25105/PETRO.V8I3.5509","DOIUrl":"https://doi.org/10.25105/PETRO.V8I3.5509","url":null,"abstract":"Drilling operations always require fluid in their activities. Because to penetrate the soil and rocks will be very easy with the use of fluid. The fluid will help soften the soil and rocks making it easier for the drill bit to penetrate it. Drilling fluid is also needed to attach the casing to the drill wall. So that the wall does not collapse, as media logging and so on. Of course, each drilling zone (surface zone, intermediate zone, and production zone) has different characteristics and different additive substances are needed. This study wants to find out the function of the use of calcium chloride additives on the nature of cement hardness and choking time. This research is important because it will be known this addictive nature as a retarder or accelerator. By knowing the nature of this additive so that it can be used in the right zone. Testing on Calcium Chloride additive for the value of compressive strength is very effective at a concentration of 8%, 24-hour immersion time and a temperature of 150 ° F with a test result of 4483 psi. Whereas, at temperatures of 80 ° F and 100 ° F, the maximum value of compressive strength for Calcium Chloride additive occurs at a concentration of 10% with a test result of 2393 psi and 2888 psi. Based on the data presented, temperature plays an important role in testing the thickening time of a cement sample. The addition of calcium chloride additive functions as an accelerator.","PeriodicalId":435945,"journal":{"name":"PETRO:Jurnal Ilmiah Teknik Perminyakan","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116291243","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}
Pub Date : 2019-09-12DOI: 10.25105/PETRO.V8I3.5511
I. Putri, A. Priyono
Thin Bed Identification is still a difficult task even with the advanced technology of seismic acquisition. Certain high frequency component is necessary and could be obtained through resolution enhancement. Short – Time Fourier Transform Half Cepstrum (STFTHC) is performed to enhance seismic resolution thus a better separation of thin bed could be improved. Basic principal of STFTHC is to replace the frequency spectrum by its logarithm while phase spectrum remains the same. Synthetic seismic was built based on Ricker and Rayleigh criterion. They were used to test the program yielding a better separation of two interfaces under tuning thickness without creating new artifacts. The algorithm was applied to seismic data from TG field. Using post-STFTHC seismic data as input of acoustic impedance inversion, well tie correlation increases by 10% and decreases inversion analysis error by 17,5%. Several thin bed -which once could not- could be identified on acoustic impedance result.
{"title":"THIN BED IDENTIFICATION IMPROVEMENT USING SHORT – TIME FOURIER TRANSFORM HALF – CEPSTRUM ON “TG” FIELD","authors":"I. Putri, A. Priyono","doi":"10.25105/PETRO.V8I3.5511","DOIUrl":"https://doi.org/10.25105/PETRO.V8I3.5511","url":null,"abstract":"Thin Bed Identification is still a difficult task even with the advanced technology of seismic acquisition. Certain high frequency component is necessary and could be obtained through resolution enhancement. Short – Time Fourier Transform Half Cepstrum (STFTHC) is performed to enhance seismic resolution thus a better separation of thin bed could be improved. Basic principal of STFTHC is to replace the frequency spectrum by its logarithm while phase spectrum remains the same. Synthetic seismic was built based on Ricker and Rayleigh criterion. They were used to test the program yielding a better separation of two interfaces under tuning thickness without creating new artifacts. The algorithm was applied to seismic data from TG field. Using post-STFTHC seismic data as input of acoustic impedance inversion, well tie correlation increases by 10% and decreases inversion analysis error by 17,5%. Several thin bed -which once could not- could be identified on acoustic impedance result.","PeriodicalId":435945,"journal":{"name":"PETRO:Jurnal Ilmiah Teknik Perminyakan","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115856157","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}
Pub Date : 2019-09-12DOI: 10.25105/PETRO.V8I3.5515
Weny Astuti, Raka Sudira Wardana, J. Sinaga
Prediksi tekanan abnormal formasi merupakan hal yang penting pada operasi pengeboran. Prediksi tekanan pori formasi yang tepat bisa mencegah terjadinya permasalahan pada pengeboran seperti pipe sticking, lost circulation, kick hingga blowout. Tekanan pori formasi bisa diukur secara langsung melalui Repeat Formation Tester (RFT) atau Modular Dynamic Tester (MDT), namun hal ini proses ini tidak dilakukan di setiap kedalaman dan hanya bisa dilakukan setelah proses pengeboran selesai dilakukan. Untuk itu perlu dilakukannya prediksi tekanan pori formasi dengan menggunakan data – data logging menggunakan persamaan empiris. Salah satu persamaan yang umum digunakan yaitu persamaan Eaton (1975). Pada paper ini dibahas analisa prediksi tekanan formasi menggunaan persamaan Eaton untuk sumur X di lapangan Y. Hasil prediksi menunjukkan adanya zona tekanan pori abnormal pada sumur X.
{"title":"ANALISA PREDIKSI TEKANAN PORI FORMASI MENGGUNAKAN PERSAMAAN EATON","authors":"Weny Astuti, Raka Sudira Wardana, J. Sinaga","doi":"10.25105/PETRO.V8I3.5515","DOIUrl":"https://doi.org/10.25105/PETRO.V8I3.5515","url":null,"abstract":"Prediksi tekanan abnormal formasi merupakan hal yang penting pada operasi pengeboran. Prediksi tekanan pori formasi yang tepat bisa mencegah terjadinya permasalahan pada pengeboran seperti pipe sticking, lost circulation, kick hingga blowout. Tekanan pori formasi bisa diukur secara langsung melalui Repeat Formation Tester (RFT) atau Modular Dynamic Tester (MDT), namun hal ini proses ini tidak dilakukan di setiap kedalaman dan hanya bisa dilakukan setelah proses pengeboran selesai dilakukan. Untuk itu perlu dilakukannya prediksi tekanan pori formasi dengan menggunakan data – data logging menggunakan persamaan empiris. Salah satu persamaan yang umum digunakan yaitu persamaan Eaton (1975). Pada paper ini dibahas analisa prediksi tekanan formasi menggunaan persamaan Eaton untuk sumur X di lapangan Y. Hasil prediksi menunjukkan adanya zona tekanan pori abnormal pada sumur X.","PeriodicalId":435945,"journal":{"name":"PETRO:Jurnal Ilmiah Teknik Perminyakan","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121743653","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}
Pub Date : 2019-07-03DOI: 10.25105/PETRO.V8I2.4773
Allen Haryanto Lukmana, Aris Buntoro, Avista Oktaviana Putri Utami
In drilling activities there are several types of trajectories, one of which is directional drilling. In a directed drilling operation, the engineer must carry out a design of the well trajectory and then do a calculation then the results are used as a reference for the calculation of the well trajectory after the drilling operation. In this study a system was built in the application to help engineers perform calculations on Plan Trajectory data and Survey Trajectory data so that further evaluation can be made of deviations that occur by implementing the Minimum Of Curvature calculation method.While the system development method used is the Waterfall method which will be divided into three stages in building a system, namely problem analysis, gathering system requirements and system design. The method of data collection is done by collecting secondary data sources. The application is built with the support of PHP, Javascript and PHPMyAdmin programming languages for database management.From the results of the analysis, design and testing carried out successfully built 3D Application Planning and Implementation of Drilling Trajectory Leading to the "X" Well With the Minimum Of Curvature Method which is quite accurate at 62.26% in reducing the possibility of formula writing errors from the previous system usage which results in the risk of errors calculations and can help make it easier for engineers to analyze and make drilling operations more effective and efficient.
{"title":"WEB-BASE 3D SOFTWARE UNTUK PERENCANAAN DAN PELAKSANAAN TRAJECTORY PEMBORAN BERARAH","authors":"Allen Haryanto Lukmana, Aris Buntoro, Avista Oktaviana Putri Utami","doi":"10.25105/PETRO.V8I2.4773","DOIUrl":"https://doi.org/10.25105/PETRO.V8I2.4773","url":null,"abstract":"In drilling activities there are several types of trajectories, one of which is directional drilling. In a directed drilling operation, the engineer must carry out a design of the well trajectory and then do a calculation then the results are used as a reference for the calculation of the well trajectory after the drilling operation. In this study a system was built in the application to help engineers perform calculations on Plan Trajectory data and Survey Trajectory data so that further evaluation can be made of deviations that occur by implementing the Minimum Of Curvature calculation method.While the system development method used is the Waterfall method which will be divided into three stages in building a system, namely problem analysis, gathering system requirements and system design. The method of data collection is done by collecting secondary data sources. The application is built with the support of PHP, Javascript and PHPMyAdmin programming languages for database management.From the results of the analysis, design and testing carried out successfully built 3D Application Planning and Implementation of Drilling Trajectory Leading to the \"X\" Well With the Minimum Of Curvature Method which is quite accurate at 62.26% in reducing the possibility of formula writing errors from the previous system usage which results in the risk of errors calculations and can help make it easier for engineers to analyze and make drilling operations more effective and efficient.","PeriodicalId":435945,"journal":{"name":"PETRO:Jurnal Ilmiah Teknik Perminyakan","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127234224","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}
Pub Date : 2019-07-03DOI: 10.25105/PETRO.V8I2.4780
W. Dahani, Boanerges Wino Patty, S. Subandrio, Emmy Fatmi Budhya
Increasing the level of an extract into a marketable and valuable mineral or beneficiation process can be carried out in various ways, one of which is a table technique ("Wilfley table"). Beneficiation begins with knowing the character of ore through XRD characterization, mineragraphy, SEM-EDS and Fire Assy, Then, the ore is smoothed to a range of ~ 200 mesh and concentrated with rocking table gravity by varying the size of rock fraction, table slope and water discharge. Based on the comparison of XRD characters, mineragraphy, SEM-EDS and fire Assy from the initial seeds and recovery, the results obtained is found to be within the optimum conditions at fraction ~200 mesh size, 3o elongation table, and water discharge of 14 liters / minute and with gold recovery of 84.48% or increase gold content from 1.32 g / ton to 18.75 g / ton. Based on the optimization, the finer the size of the particles , the higher the level of gold recovery. Nevertheless, the increase in the slope of the table and water discharge can reduce the recovery of gold.
将提取物的含量提高到可销售和有价值的矿物或选矿过程可以通过各种方式进行，其中一种是表技术(“Wilfley表”)。首先通过XRD表征、矿物学、SEM-EDS、Fire分析等手段了解矿石的性质，然后通过改变岩石粒度、台面坡度、水量等因素，将矿石磨平至~ 200目范围，利用摇台重力进行选矿。通过对初始种子和回收物的XRD、矿物学、SEM-EDS和fire Assy进行比较，结果表明，在分剂粒径~200目、延伸表30、排水量为14升/ min的条件下，金的回收率为84.48%，金的含量由1.32 g / t提高到18.75 g / t。优化结果表明，颗粒粒度越细，金回收率越高。但台面坡度的增加和放水量的增加会降低金的回收率。
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Pub Date : 2019-07-03DOI: 10.25105/PETRO.V8I2.4778
Listiana Satiawati, Prayang Sunni Yulia
Calculation of hydrocarbon flow in the form of oil or gas in Petroleum Engineering is used the Darcy equation. Deriving the Navier Stokes equation produces a general equation that cannot be used for special conditions, for example linear or radial flow because the formulation is different. In this paper, the Darcy equation obtained through experimental evidence is derived from the Navier Stokes equation with several assumptions and simplifications . The calculation in this paper uses a numerical solution, which uses Fortran language, as one approach. Then by using field data, the Darcy equation is used in calculating the flow rate and the velocity of linear fluid in the reservoir. And also the calculation of the pressure from the well to the outermost point of the reservoir with radial fluid flow, so that the pressure gradient data can be obtained from the well to the outermost point of the reservoir.
{"title":"PENURUNAN PERSAMAAN DARCY DARI PERSAMAAN NAVIER-STOKES UNTUK RESERVOIR ALIRAN LINIER DAN RADIAL","authors":"Listiana Satiawati, Prayang Sunni Yulia","doi":"10.25105/PETRO.V8I2.4778","DOIUrl":"https://doi.org/10.25105/PETRO.V8I2.4778","url":null,"abstract":"Calculation of hydrocarbon flow in the form of oil or gas in Petroleum Engineering is used the Darcy equation. Deriving the Navier Stokes equation produces a general equation that cannot be used for special conditions, for example linear or radial flow because the formulation is different. In this paper, the Darcy equation obtained through experimental evidence is derived from the Navier Stokes equation with several assumptions and simplifications . The calculation in this paper uses a numerical solution, which uses Fortran language, as one approach. Then by using field data, the Darcy equation is used in calculating the flow rate and the velocity of linear fluid in the reservoir. And also the calculation of the pressure from the well to the outermost point of the reservoir with radial fluid flow, so that the pressure gradient data can be obtained from the well to the outermost point of the reservoir.","PeriodicalId":435945,"journal":{"name":"PETRO:Jurnal Ilmiah Teknik Perminyakan","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123463119","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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