Proceedings of Indonesian Petroleum Association, 46th Annual Convention & Exhibition, 2022最新文献

{"title":"Low-Cost Flexible Riser Replacement on FPSO in a Marginal Field","authors":"I. Boondao","doi":"10.29118/ipa22-f-60","DOIUrl":"https://doi.org/10.29118/ipa22-f-60","url":null,"abstract":"This paper discusses a case study and challenges on a low-cost flexible riser replacement on FPSO in one of the offshore fields in the Gulf of Thailand. Once the flexible riser has gone past design life, a regular annular service test, inspection and risk assessment are required justify life extension. Considering the field lifetime and the risk associated with the riser, it is recommended that short term extensions are possible and warrants the replacement of the existing riser. Various alternatives and fit for purpose were reviewed to replace the original Coflexip API RP17J flexible riser with a low-cost material at estimate of 80% saving of the cost.","PeriodicalId":442360,"journal":{"name":"Proceedings of Indonesian Petroleum Association, 46th Annual Convention & Exhibition, 2022","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129538516","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}

{"title":"Evaluation of Tight Injectivity for Sand Consolidation Treatment: A Study Case in Mahakam","authors":"F. Permatasari","doi":"10.29118/ipa22-se-153","DOIUrl":"https://doi.org/10.29118/ipa22-se-153","url":null,"abstract":"Most shallow reservoirs with unconsolidated formation have a higher possibility of sand production, which hinders the oil and gas production process and damages the production facility because of erosion. Chemical sand consolidation (SCON) is one sand control method needed to strengthen the formation by injecting a mix of chemical components as a binding agent, pore retaining agent, and curing agent into the target formation. But, to achieve an efficient injection, an injectivity test must be done to determine a safe injection rate that will not exceed the fracture pressure and will not affect sand failure because of non-uniformity of the treatment distribution. This study evaluates the previous SCON wells in the Mahakam block with poor injectivity results and forecasted to be not workable for chemical injection because of bottomhole pressure exceeding fracture pressure from the high fluid viscosity. This study examined case studies from the last 4 years in mitigating injectivity problems and from the data made a comparison in determining the best remedial action. The novelty of this study is in redefining the operation envelope of sand consolidation treatment in terms of injectivity results. Issues in injectivity should not jeopardize production in unconsolidated formation since it can be mitigated properly and still result in a positive economic contribution.","PeriodicalId":442360,"journal":{"name":"Proceedings of Indonesian Petroleum Association, 46th Annual Convention & Exhibition, 2022","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127171376","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}

{"title":"Probabilistic Technique to Estimate Duration of Rig-Less Gravel Pack Completion for a Better Planning","authors":"R. Sinaga","doi":"10.29118/ipa22-e-100","DOIUrl":"https://doi.org/10.29118/ipa22-e-100","url":null,"abstract":"The operator has been utilizing a hydraulic workover unit to perform gravel pack completion in its offshore fields since 2019. Managing all fleets in the company's premises to meet the annual company's objective is quite complex and involves many stakeholders. Time and cost estimation for each campaign can be critical factors to predict and to arrange the work loads of each fleets. Taking immediate data from previous wells can create another issue since the types of job are different one to another. Hence, it is required to generate a probabilistic technique to estimate the duration which represents the workloads per campaign as much as possible. This paper discusses development of a probabilistic method to predict the time and cost of the rig-less gravel pack completion. Post data and facts are enhanced through statistical iteration to create a tool for estimating the duration. After all, the model has been beneficial to be used in the following projects of the rig-less gravel pack.","PeriodicalId":442360,"journal":{"name":"Proceedings of Indonesian Petroleum Association, 46th Annual Convention & Exhibition, 2022","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125680530","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}

{"title":"Operation of Gas Lift Compressor Without Discharge Cooler in Handil Field – Pertamina Hulu Mahakam","authors":"S. Sia","doi":"10.29118/ipa22-f-149","DOIUrl":"https://doi.org/10.29118/ipa22-f-149","url":null,"abstract":"Handil is a mature oil field in Mahakam Block which has been producing for more than 45 years. Following its depletion challenge, more than 90% of Handil’s oil production relies mainly on gas lift, which is circulated from Compressor in the process area. The HEOR (Handil Enhanced Oil Recovery) Compressor is one of the compressors used to supply gas lift in Handil field. HEOR is equipped with two air coolers, namely the interstage cooler (E-5550) and discharge cooler (E-5530). Based on inspection findings, the discharge cooler E-5530 is leaking and out of service. Consequently, HEOR compressor cannot be operated, thereby reducing the rate of gas lift to field and resulting to lower oil production from Handil field. Further study was then carried out to review the feasibility of running the HEOR compressor without its discharge cooler (discharge cooler operation by-passed). Several efforts were performed to ensure the process safety condition as follows: Jumper line size to ensure the deliverability of gas lift rate. The existing 6” jumper line with a rating 1500# is capable to deliver 48 MMscfd with potential debottlenecking to 8” line with a capacity of 86 MMscfd; Stress analysis on piping & pipeline is performed to review the impact of increasing temperature; Water condensation study along the pipeline discharge cooler to check the Top of Line Corrosion (ToLC) issue; Corrosion mitigations with sampling liquid (e.g. pH analysis) and corrosion monitoring requirement (e.g. routine UT measurement at critical sections and chemical injection on critical points as per sampling result); Field trial of the by-pass discharge cooler by utilizing existing configuration were carried out to examine the temperature profile along the pipeline and its impact on the performance of HEOR compressor. The new philosophy of running HEOR compressor without discharge cooler was successfully implemented in the Handil field. The modification is succeeded to boost oil production up to 2,000 bopd thanks to great collaboration among engineering, production method, and site Operation team. All efforts from engineering studies up to implementation in the field are a good lesson learns that can be implemented to other oil and gas field.","PeriodicalId":442360,"journal":{"name":"Proceedings of Indonesian Petroleum Association, 46th Annual Convention & Exhibition, 2022","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125695059","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}

{"title":"Pertagis (Pertamina Gis), The Journey to One Map Pertamina to Support The Borderless Operation Excellence of Sub Holding Upstream","authors":"P. Sarwanto","doi":"10.29118/ipa22-g-43","DOIUrl":"https://doi.org/10.29118/ipa22-g-43","url":null,"abstract":"The development of PERTAGIS (PERTAMINA GIS), a Geospatial Information System is one response to the new restructuring challenge of PERTAMINA Sub Holding Upstream (SHU) within the regionalization framework which significantly changes the operating model and asset management. To avoid geospatial data silos, the concept of data integration is very necessary for smooth, effective and efficient decision making because the data presented is unlimited & comprehensive, including in terms of analysis. In addition, as part of the Digital Transformation SHU program, this system is designed in accordance with the Indonesian government's laws and regulations (Kebijakan Indonesia Satu Peta) with the aim of integrating national geospatial data owned by all ministries into the SIGN (Sistem Informasi Geospasial Nasional). However, this massive integration of some existing portal & applications with various specifications, huge data volumes, disparate databases, different data structures and owned by many entities is being a big challenge in establishing an agile proven system among multiple entities and functions within SHU, regions & zones as a whole. For this reason, it is officially necessary to prepare a blueprint document as the road map of ongoing system development which includes 5 key components, namely strategy, governance, data & technology, engagement and skills development, when fully well-developed and implemented would help establish a vision and path for an organization's success and transformation leveraging geospatial resources in a complex system with evolving priorities to business goal and business challenging of SHU and PERTAMINA in general.","PeriodicalId":442360,"journal":{"name":"Proceedings of Indonesian Petroleum Association, 46th Annual Convention & Exhibition, 2022","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126396289","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}

{"title":"Redefining Horst and Graben Distribution in The Onshore Part of The North East Java Basin and Its New Exploration Opportunity","authors":"Y. S. Purnama","doi":"10.29118/ipa22-g-97","DOIUrl":"https://doi.org/10.29118/ipa22-g-97","url":null,"abstract":"The onshore part of North East Java Basin (NEJB) is a well-known hydrocarbon producing area in Indonesia, with the largest proven reservoir being the Oligo - Miocene carbonates which accumulated over basement horsts. Currently, the understanding of horst distribution is based on previous publications. However, new integration studies on surface data (e.g. outcrop, satellite image, geological map) and subsurface data (e.g. well data, biostratigraphy, seismic and gravity data) has provided a new perspective of horst and graben distribution, which has led to a new exploration concept in the onshore part of NEJB. The geological character of horst and graben has been carefully described to be used as a predictive tool to redefine where the area should be considered graben or horst. Integrating horst and graben characters with available data has enabled generate of a new horst and graben map. The study outcome suggests there are six horsts and six grabens. Some horsts are known, but many are new. Likewise, some grabens are known, but others are unique. New exploration opportunities have been generated by these horsts and grabens in the context of depositional setting from Middle Eocene to Middle Miocene. In addition, three play concepts have been created. They are Eocene Clastic, Eocene to Early Miocene Carbonates, and Early to Middle Miocene Clastic. The plays differ, since the horst and graben positions are unique compared to traditional knowledge. The message is clear, this study has opened new opportunities, as new horsts mean new opportunities to find new (giant) oil and gas fields.","PeriodicalId":442360,"journal":{"name":"Proceedings of Indonesian Petroleum Association, 46th Annual Convention & Exhibition, 2022","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124360233","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}

{"title":"A Comprehensive Experimental Study on The Performance of Alcoholalkoxyl-Sulfate-Based Surfactant: A Case Study on Light Crude Oil Field A","authors":"M. Fauzi","doi":"10.29118/ipa22-e-14","DOIUrl":"https://doi.org/10.29118/ipa22-e-14","url":null,"abstract":"An energy operator in Indonesia planned an exploration well that required two divergent hole opening sections: A 12 ¼” x 13 ½” hole section; and a 10 ⅜” x 12 ¼” hole section, to be able to add 11 ¾” liner between the 13 ⅜” and 9 ⅝” casing to address the subsurface uncertainties that are typical of an exploration well, and as such a new generation of Bi-Center bit was utilized. This project required the application of multiple innovative approaches: 1) The opening tool has to pass through the minimum or ID of the wellhead and casing; 2) Possess the capacity to be inserted into BHA design such as rotary or using mud motor; 3) The necessity to efficiently drill the cemented shoe track; 4) The minimization of rat hole needs to be eliminated to optimize and ensure cementing of the casing. Simultaneous drilling and hole enlargement were conducted in a way that achieved the intended objectives in a cost-efficient and effective manner. Before the project, a pre-job planning exercise was performed to ensure that the Bi-Center bit could pass through the maximum tool size allowance in conjunction with mud motor BHA. The 12 ¼” x 13 ½” Bi-Center bit was successfully drilled and enlarged to the programmed target depth, with a total interval length of 453 m and a satisfactory ROP. There were no issues while tripping the BHA through the wellhead wear bushing, the casing, and subsequently drilled the cement shoe track, float equipment, and casing shoe.The next section of the well experienced a successful run of the 10 ⅜” x 12 ¼” Bi-Center with a respectable ROP and the bit was graded in good dull condition after it was pulled out of the hole. Both the 11 ¾” liner and 9 ⅝” casing strings were successfully deployed to the bottom and demonstrated that the Bi-Center bits provided satisfactory hole quality.","PeriodicalId":442360,"journal":{"name":"Proceedings of Indonesian Petroleum Association, 46th Annual Convention & Exhibition, 2022","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132770419","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}

{"title":"Field Production Optimization in Constrained Water Temperature at Surface Facility Using Machine Learning and Genetic Algorithm","authors":"","doi":"10.29118/ipa22-f-69","DOIUrl":"https://doi.org/10.29118/ipa22-f-69","url":null,"abstract":"Wastewater from all oil and gas industries in Indonesia must comply with the quality standard set by the environmental minister regulation Number 19 Year 2010 before it can be released into the water bodies. One requirement is for the temperature of wastewater to be below 113°F (45 deg Celsius). Production fluid from Seruni field is being processed at Seruni GS. The produced water from the field will be treated until the quality meets the requirement before being discharged to the nearby canal. If the outlet temperature of the produced water at the compliance point is about to exceed the limit, the operator will try to reduce the temperature by shutting down several wells, to reduce the overall flow rate of the produced water being treated in Seruni GS. This action will result in production loss and lower the overall oil production to be delivered from Seruni GS. Considering the importance of outlet temperature of produced water concerning the potential production loss and compliance to the permit, it is critical to building a model to understand the relationship between outlet temperature and the operational condition (such as produced water flow rate, ambient temperature, and others). A proposed solution is to combine the implementation of machine learning prediction and genetic optimization to predict minimum adjustment to the operational condition and the oil loss while still meeting the required temperature limit. Using the method, the developed model has achieved a Root Mean Square Error (RMSE) of about 0.38degF and a Coefficient of Determination (R2) of 0.97. In addition, the optimization result shows better decisions compared to current best practices in suggesting the well shut-in candidates. The system is run daily to estimate future outlet temperature and recommend the amount of water reduction, including the list of wells to be shut-in. Another utilization of this system is for assisting the evaluation of the potential impact of increased produced water flow rate from sizing up the subsurface pump and reactivating existing idle producer wells. As the company operates many other fields similar to Seruni field, there is an opportunity to replicate the approach implemented in Seruni field in other fields operated by the company.","PeriodicalId":442360,"journal":{"name":"Proceedings of Indonesian Petroleum Association, 46th Annual Convention & Exhibition, 2022","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128115029","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}

{"title":"Recovering Lost Oil Reserves in Sandy Wells Using a Resin Injection Approach: Mutiara and Pamaguan Field - Indonesia Implementation","authors":"A. Mahardhini","doi":"10.29118/ipa22-e-38","DOIUrl":"https://doi.org/10.29118/ipa22-e-38","url":null,"abstract":"Gas and oil production play a significant role in maintaining company sustainability, directly impacting profitability. Amid a gradually increasing oil price trend, combined with a company production sharing contract, the economic benefits for oil sales are significantly higher than gas, demanding operations focus on lifting oil instead of gas. Many uncertain variables make it difficult to achieve the full potential of the reservoir's oil production, with sand production contributing a large part of this. It is a condition in which the sand matrix is produced together with reservoir fluids, leading to production system damage and an operational threat to safety. The sand issues are caused by poor cementation of the reservoir (widely known as an unconsolidated reservoir), combined with a rate of production fluid that exceeds a value (may vary for different reservoirs) known as the critical rate. The simplest solution to avoid sand issues is drawdown pressure management from the reservoir into the wellbore to maintain the production fluid rate below the critical rate. However, this solution is often ineffective due to the dynamic behavior of the reservoir and production system environment. From a production point of view, this solution also negatively impacts the oil production delivery commitment and reserves if the well cannot flow continuously below the critical rate. This results in mandatory sand production prevention measures being implemented. In the Mutiara and Pamaguan fields, sand issues are prevented using a mechanical solution by installing a sand screen in the wellbore. Although this method is the most economical one, due to the limitations of sand screen size and selection, sand can still pass by the screen or cause plugging around the screen. Since this method only filters the sand downhole, sand deposition below the sand screen is still very likely, leading to the eventual covering up of open perforation intervals. Recently, another method has been implemented to prevent sand production using resin injection into the reservoir, with the objective being to enhance sand consolidation. This method has proved an economical way to treat sand problems without harming either the production or clearance in the well. This paper will give a better understanding of the sand problem and the benefits of this type of resin injection for treating sand problems based on a campaign of four oil wells in a mature field with its associated complexity. This sand consolidation treatment successfully recovered lost oil reserves totaling 215 Mbbl of oil.","PeriodicalId":442360,"journal":{"name":"Proceedings of Indonesian Petroleum Association, 46th Annual Convention & Exhibition, 2022","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131904420","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}

{"title":"A Successful Story: Improving Success Ratio Up To 80% of Well Reactivation Job Pamusian Field Case Study, Tarakan, North Kalimantan, Indonesia","authors":"I. Kurniawan","doi":"10.29118/ipa22-e-63","DOIUrl":"https://doi.org/10.29118/ipa22-e-63","url":null,"abstract":"Pamusian Field is located in northern part of North Kalimantan, Zona 10, Pertamina Hulu Indonesia area, approximately 1 km Southeast from Center of Tarakan City. Pamusian field is one of Top Ten Fields (Kalimantan Area under Pertamina EP operation Area) based on its OOIP, 553 MMSTB approximately with more than 1200 wells drilled since 1905 (brown field). However, this role doesn’t mean Pamusian production stands at tremendous number of productions. Moreover, only 50 active wells contribute to Pamusian oil production. More than 1000 wells are idles even though there bunch of oil opportunities on the idle wells. As an overall, Pamusian oil production remained constant for around 500 BOPD at 3 years back before massive reactivation delivered in 2021 & impacting to production gain achieve 150-200 BOPD gain in 2021. In the end of 2020, aligned with company’s goal to maximize existing Asset, the idea of production optimization was commissioned by improving success ratio of well reactivation job in Pamusian Field. In the last 3 years, success ratio of well reactivation job was not encouraging. The team focused on all aspects of optimization & reactivation practices. Field review & reactivation lookback are aggressively conducted to figure out Pamusian Field problems. Lack of workover & well intervention jobs, inadequate surveillance data, and miss perception of well reactivation method are raised to be the root cause for under developed field. Another surprising fact is more than a hundred attics wells located up dip in Main Closure not active (idle) which has lower surrounding well in a good oil production performance (10-30 BOPD) BOPD with various of water cut 90%. Again, this is real opportunity! Low hanging fruit to become more oil by producing those wells. An integrated and comprehensive assessment successfully delivered. Subsurface assessment cover the geological and reservoir engineering assessment. The most important outcome of this assessment is reactivation method recommendation, it’s called Locomotive (Low Cost, Massive Impact, & Innovative). Three innovations created and delivered to conduct well reactivation jobs in Pamusian field, there are Subsurface Data Hierarchy Development (to set subsurface confident level), Fill up Annulus Activity (to check fluid sample), and Locomotive Risk Mapping Assessment (to set priority by comparing confident & impact level) as decision tool. These reactivation methods delivered in high confidence level of success. Resulting a dramatic rise of success ratio up to 80% (previously 30% at 3 years back) and oil gain average 150 – 200 BOPD which remained stable for several months until early 2022. Another campaign of well reactivation programs was carried out after right to other wells and fields. Another typical reactivation was implemented, which had impressive results. All the objectives define were achieved. The outcome of the reactivation program was completely successful and exceeded the expectations which ","PeriodicalId":442360,"journal":{"name":"Proceedings of Indonesian Petroleum Association, 46th Annual Convention & Exhibition, 2022","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134067680","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}