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

{"title":"Banyu Urip’s Successful Journey in Implementing The Coordinated Phosphate and pH Program at Heat Recovery Steam Generation to Mitigate Severe Scaling Issue","authors":"W. Dharmawan","doi":"10.29118/ipa22-f-262","DOIUrl":"https://doi.org/10.29118/ipa22-f-262","url":null,"abstract":"Banyu Urip (BU) is a sour oil producing field with 1.6% H2S and 45% CO2 in its well stream fluid. BU Central Processing Facility (CPF) requires steam for H2S stripping in crude oil to meet sales specification and for heating media in process heat exchangers. The required steam is produced by Heat Recovery Steam Generation (HRSG) fitted in the Gas Turbine Generators (GTG). Despite of its criticality, maintaining HRSG integrity proved to be challenging as a severe scaling issue was observed during HRSG inspection in late 2018 which was caused by inability to consistently meet phosphate and pH control zone. This paper will share BU’s experience in eliminating HRSG scaling issue by balancing chemistry equilibrium in a closed loop Boiler Feed Water (BFW)-HRSG system with retrograde solubility concept for phosphate injection system and comprehensive suitable chemical type selection. The main issues at HRSG were coming from improper phosphate formulation causing frequent plugging at chemical injection line and high conductivity of BFW. This resulted in operational limitation to meet phosphate and pH control zone. In order to address frequent phosphate injection line plugging, an understanding of retrograde solubility properties of the chemical becomes the key concept. Furthermore, it was found that the existing sulfite-based oxygen scavenger type contributing to high conductivity of BFW, consequently exceeding the threshold based on design practice. Chemical re-selection with lab and field trials were performed to discover oxygen scavenger type which has minimum impact to conductivity, providing further opportunity for blowdown rate and chemical dosage optimization. The consistency of maintaining HRSG phosphate and pH in control zone had been successfully preventing scale build up in the HRSG. The challenges were resolved by having extensive collaborations between operations, technical, and chemical supplier. This effort provided benefit to higher equipment availability and reliability and overall BFW-HRSG treatment cost reduction by 31%.","PeriodicalId":442360,"journal":{"name":"Proceedings of Indonesian Petroleum Association, 46th Annual Convention & Exhibition, 2022","volume":"38 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":"115854497","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":"Technical Initiatives and Cost-Effectiveness to Optimize The Drilling Project of The Jambaran Sour Gas Field Development","authors":"A. E. Prasetya","doi":"10.29118/ipa22-e-183","DOIUrl":"https://doi.org/10.29118/ipa22-e-183","url":null,"abstract":"The Jambaran structure is a gas field located in East Java, Indonesia. From 2019-2021 the development project has been carried out by drilling five new wells and re-entry one well with additional activities of temporary plug and abandonment (P&A) of one exploration well. This paper discusses several technology initiatives and cost-effectiveness to optimize the drilling project in the Jambaran-Tiung Biru (JTB) Field. The design of the well shall meet the composition of 34% CO2 and 1% H2S in the reservoir. According to this sour gas condition and to meet the raw gas production of 315 MMSCFD, the project requires a specific design of the long-lead item. These had longer time delivery compared to the usual carbon steel. The Operator and SKK Migas took several initiatives for optimization. The drilling project was divided into two methods: drilling with a rig and completion with a rigless. The rig operation was optimized by applying a batch drilling sequence to meet material delivery time. Optimization also came from the drilling time on each hole section, mud utilization, casing, and cementing programs compared with the actual activities. Took corrective actions and learned about drilling problems. The completion job consists of perforation work 800 feet long in the reservoir target, well cleanup work, and production testing safe and effective. The well costs evaluated were based on the authorization for expenditure (AFE) compared with the actual cost estimate. The cost components that were evaluated include cost-per-foot and cost-per-day. The drilling project was completed 56 days earlier than planned. A Non-Productive Time (NPT) in an average of 3% and the results of the well test show that the production forecast is still as per plan. The estimated actual cost is 15% lower than the plan.","PeriodicalId":442360,"journal":{"name":"Proceedings of Indonesian Petroleum Association, 46th Annual Convention & Exhibition, 2022","volume":"23 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":"121685640","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":"The First 3 Re-Drill Drilling Wells Performances to be Utilized as Key References to Drill Another 4 New Wells of The Sapi Re-Activated Development Drilling Wells in East Kalimantan Area","authors":"H. Hendradiz","doi":"10.29118/ipa22-e-316","DOIUrl":"https://doi.org/10.29118/ipa22-e-316","url":null,"abstract":"This paper discusses the drilling operations performed on the first 3 drilling wells of the Sapi Re-Activated Development Drilling Wells with PT Hulu Kalimantan Timur. The project aims to have additional gas production from the Sapi Field which needs to be put back on production after the gas production has been inactive since the closing of the Sapi production facilities at the end of 2018. Sapi Field has been developed since the POD (Plan of Development) was approved in 2000. There were 21 development wells in total (7 wells were the re-drill wells) drilled through 14 platform slots during the development period from 2000 onwards. This re-activation drilling campaign had been planned for the 2023 Drilling Budget realization. However, the PHKT management decided to accelerate the program of drilling 7 new wells since the requirement of gas consumption in East Kalimantan must be urgently fulfilled. However, the drilling team decided to convert 3 (three) of the 7 new wells to re-drill wells so that the overall Sapi drilling campaign could be executed earlier, around the end of 2021, by optimizing the utilization of available slots at the Sapi Platform. The 1st well of the Sapi Drilling Campaign was completed safely in 30 days. The well was a re-drill that was sidetracked thru the 9-5/8” casing of a mother well that was plugged & abandoned previously. The well was completed with a cost of around 25% below budget. It was discovered that net sand was 40% higher than the prognosis with the following events encountered during drilling the well: rig stability; SIMOP operation for demolition work through an offset platform; social problems resulting from villagers' intervention; penetration of long hard sand intervals; lower FIT value than expected; and well control event to circulate high gas influence while drilling the 6-1/8” section. Lost circulation problem was potentially expected to be a drilling hazard at several depleted zones, and kick problems were also potentially to be encountered through high-pressure zones at depths deeper than 12,000 ft VD. Therefore it is a great opportunity to discuss in this paper, particularly the lessons learned through the drilling operation of these 3 (three) re-drill wells. All matters concerning the execution of drilling operations on the first, second, and third re-drills had been thoroughly evaluated. All similar potential drawbacks could be anticipated and avoided for better performance improvement. Therefore, the drilling performance of the next 4 new wells can be improved considerably. The drilling cost of the last re-drill well, Sapi-5RD2, was indicated to have significant improvement over the first well. The Drilling Division of PT PERTAMINA Hulu Kalimantan Timur had spent only around 66 % of the approved AFE budget to complete the well. Detailed operational drawbacks and evaluation processes to result from significant drilling performance improvement from one well to the other consecutive wells are discus","PeriodicalId":442360,"journal":{"name":"Proceedings of Indonesian Petroleum Association, 46th Annual Convention & Exhibition, 2022","volume":"39 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":"123124615","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":"Implementation Technology Solution for Real-Time Production and Facility Monitoring","authors":"R. M. Wiyadi","doi":"10.29118/ipa22-f-3","DOIUrl":"https://doi.org/10.29118/ipa22-f-3","url":null,"abstract":"Fast transformation and data digitalization navigate companies in the industry to promptly comply with the new technologies. Digital electronics through Internet of things (IoT) become essential to enable measurement in real-time for production and facility monitoring. This paper offers a solution to integrate database and real-time data streaming technology to record sensors in placed in the production and platform facility and visualize it through dashboard application. The system focuses on monitoring sensor tags of flow rate, pressure, temperature, and well head properties and enable an alert mechanism to the operator when a parameter closes to the minimum threshold. This new concept development could be beneficial as it will create an alternative solution to build an integrated platform in process engineering data with dedicated database and web-based application. It enables access both real-time and historical well performance and facilities information in a customized monitoring system without additional costs. facilities are in both offshore and onshore. Each location has utilized the latest technology to accommodate fast and reliable data communication environment for the engineer in differ locations. Under this current setup, the engineer team applied a closed-loop system which led to limited access only for assigned team. In addition, a silo-ed database and data communication can be a long-time issue along with complexity in data mapping and data arrangement within database (Cheung et al, 2015). The aim of this paper is to demonstrate how a technology solution can be developed to gain access and reliable data communication in real-time for production and facilities sensor data with an integrated system to a real-time monitoring that is cost-efficient and scalable.","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":"129133996","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":"Minimizing Potential Operational Risk, Schedule and Cost Impact Through Early Quality Assesment of Local OCTG Mills: The Dilemma of Achieving Production Target and Overcoming Supply Chain Challenge in Indonesia","authors":"M. I. Idris","doi":"10.29118/ipa22-bc-172","DOIUrl":"https://doi.org/10.29118/ipa22-bc-172","url":null,"abstract":"Tubulars are part of the backbone in Oil and Gas industries, especially in drilling operations as it serves as structural support, conduit, protection, pressure isolation and well barrier. Although generically the cost of tubulars could be ranging around 9-10% of the total well cost (based on PC Ketapang II Ltd. Operation), it is an integral part of the well that protects the company’s millions of dollars investment throughout the life of the well. As such, it is crucial to ensure company able to procure and utilize acceptable quality of tubulars for its operations to minimize potential operational risk, schedule and cost impact.Indonesia has many capable local mills that are certified by American Petroleum Institute (API) and recognized by the host authority as registered in Buku Data Kemampuan Nasional Industri Penunjang Migas Nasional Tahun 2021 by SKK Migas(1). However, the process and assessment result for these mills to be registered was not easy to be accessed to identify any gap with operator's standard. In order to support the aspiration by host authority to utilize local products, specifically to support the local pipe industries, the oil and gas operator as the investor shall also fulfil internal requirement to assess the pipe manufacturers in Indonesia, specifically. The assessment was conducted successfully and shows that the local mills in Indonesia have Quality Management System (QMS) and QAQC process that meets both international standards and company internal requirement. By having this assessment process, the potential risk can be minimized and local supply chain challenge can be mitigated to contribute in Indonesia Government’s aspiration towards 1 Million BOPD and 12 BSCFD target in 2030.","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":"130232767","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":"Visco-Acoustic Full-Waveform Inversion: A Case Study to Resolve Highresolution Shallow Channel Absorption, Offshore Indonesia","authors":"","doi":"10.29118/ipa22-g-254","DOIUrl":"https://doi.org/10.29118/ipa22-g-254","url":null,"abstract":"Image distortion due to gas-filled shallow channels poses challenges to velocity model building. The slow velocity and strong absorption from the gas accumulation cause complex velocity and absorption variations in the overburden. Both the velocity and quality factor (Q) models need to be accurately estimated for proper imaging. Full-waveform inversion (FWI) has established its capability for high-resolution and high-fidelity velocity model building, while Q estimation for shallow channels is still a challenge. Ray-based Q tomography, using frequency-dependent amplitude decay along reflection ray paths to estimate Q, works well for less complex areas but struggles in complex shallow areas due to limited offset information and resolution. Moreover, Q tomography often enters at the later stages of the velocity model building flow with the purpose of enhancing final imaging rather than velocity estimation, meaning systematic velocity errors might already exist. In this case study in the South Mahakam area of offshore Indonesia, multiple layers of gas-filled channels with sharp velocity contrasts and strong absorption exist from the water bottom down to 600 meters. The target reservoir, at a depth of 3.5 kilometres, experiences depth uncertainties related to the complex overlying geology. We employed a visco-acoustic full-waveform inversion (Q-FWI) approach to jointly estimate the velocity and Q models. Q-FWI can invert for high-resolution velocity and Q models of the shallow channel system, providing superior imaging when using Q-compensated pre-stack depth migration (Q-PSDM). The cumulative improvements help to increase interpretation confidence and mitigate future drilling risks.","PeriodicalId":442360,"journal":{"name":"Proceedings of Indonesian Petroleum Association, 46th Annual Convention & Exhibition, 2022","volume":"29 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":"126715067","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":"Driving Tangguh’s First Turbidite Reservoir Development Through New Well Data Integration","authors":"A. Prabowo","doi":"10.29118/ipa22-e-105","DOIUrl":"https://doi.org/10.29118/ipa22-e-105","url":null,"abstract":"The Tangguh JV has been producing gas from Bintuni Bay since 2009 from Jurassic Marginal Marine reservoir. The secondary reservoir in Tangguh is the Paleocene Deepwater Turbidite mainly present in Wiriagar Deep (WD) field. This reservoir has been extensively studied but due its complexity and poorer quality compared to the Jurassic, development of this reservoir was not prioritized at first. Poor seismic quality due to karstified overburden made it difficult to image. Evaluation is heavily derived by geology data resulted in robust subregional understanding. The WD Paleocene field consists of four zones, each zone has different Architectural Elements and characteristics including its reservoir quality (Mardani & Butterworth, 2016). It represents classic deepwater turbidite basin evolution, where at the bottom it has deepwater lobes reservoir, then evolves to slope channels overlying it. And lastly covered by shelf and clinoform channel at the top. Slope channel interval is the main development target in the Paleocene reservoir. To inform the best development scenario the subregional understanding needs to be improved. Five development wells targeting Jurassic reservoir closely spaced to each other were drilled in offshore part WD field during 2019-2020. It gave important data for appraising the Paleocene reservoir. Detailed Reservoir Depositional Environment (RDE) map were generated to give guidance in placing the future wells. This RDE map shows where is the on axis, off axis and margin of the slope channel. Integrating subregional understanding with evaluation of this latest data, continued with cellular reservoir model building, and finalized with reservoir simulation, informing the optimum development scenario for the first turbidite reservoir development in Tangguh. Two wells will be drilled in 2022 as part of this program. This development will be a steppingstone to evaluate reservoir performance before expanding the development to onshore and unlock the WD Paleocene field’s full potential.","PeriodicalId":442360,"journal":{"name":"Proceedings of Indonesian Petroleum Association, 46th Annual Convention & Exhibition, 2022","volume":"58 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":"125754935","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 Strategy to Achieve 1 Mmbopd National Oil Production Target By Implementation of Artificial Intelligence Algorithm to Accelerate The Exploration Process","authors":"M.N.P. Kumoro","doi":"10.29118/ipa22-se-157","DOIUrl":"https://doi.org/10.29118/ipa22-se-157","url":null,"abstract":"Based on the latest data released by the Special Task Force for Upstream Oil and Gas Business Activities (SKK Migas), the average production per day of national oil and gas in 2021 was recorded at 0.66 million BOPD (Barrels Oil Per Day), while the Indonesian government targets the production of 1 million BOPD. The challenges to meet target are mainly due to declining production, pandemic (operational issues), unplanned shutdowns and limited exploration activities. The objective of this paper is to design an algorithm to accelerate the exploration process. A workflow consisting of strategy to meet the target of 1 MMBOPD national oil production by using AI (Artificial Intelligence) is developed. Critical variables such as licensing (permit), appraisal, conceptual screening, G&G survey, POD, drilling, logistic and infrastructure are all identified then weighed to ensure uncertainties are controlled. Based on these variables input, the algorithm is developed with additional looping process and data training to ensure that the output of decision making is reliable. As conclusion, Big Data and AI strategies are capable to provide real-time insights that help to consider the next steps more accurately in every process to accelerate exploration phase. The use of AI can enhance the exploration phase and also aligns with business strategy of planning and investment and reduces any possible uncertainties.","PeriodicalId":442360,"journal":{"name":"Proceedings of Indonesian Petroleum Association, 46th Annual Convention & Exhibition, 2022","volume":"87 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":"122309962","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":"Fracture Basement Imaging, Identification, and Characterization Through Separated Wave Field Processing Strategies – A Case Study From Offshore Indonesia","authors":"R. Alai","doi":"10.29118/ipa22-g-174","DOIUrl":"https://doi.org/10.29118/ipa22-g-174","url":null,"abstract":"As fractured basement characterization has become very critical in Vietnam, Indonesia, Yemen, the United Kingdom, and Malaysia, the focus of our industry has been to improve the imaging technologies related to faults and fractures within the basement. This abstract showcases a sequential and systematic strategy to resolve all imaging challenges from the surface to the pre-basement zones on a dataset from offshore Indonesia. As the overburden is very complex, containing varying sizes of carbonate bodies in a shallow water environment, the image of the basement in the vintage data was very poor and not easily identifiable. With very focused efforts, including the latest available processing technologies in reprocessing, we were able to obtain accurate velocities. This was possible through extensive application of refined denoise, deghosting, and demultiple providing continuous, well-imaged top-basement images that showed good correlation with well data. Most of the efforts in fracture characterization have been concentrating on reviewing, analyzing, and improving seismic attribute performance applied to the seismic data. The performance of the attributes very much depends on the accuracy of the seismic images. With the past successes of fracture basement discoveries, accurate imaging of fractures has been an important objective in seismic data processing. The accuracy of imaging fractures in the pre-basement zone depends on the technologies and their accuracies in resolving the imaging challenges of the overburden geology. In the past, lots of efforts have been made to effectively image, analyze, delineate, and study fractures in basements. The carbonate presence and thick clastic section above the basement have generated strong surface and interbed multiples, and one of the steps that have significant impact on reconstructing the weaker pre-basement signals is effective estimation and subtraction of these. In addition to the specialized workflow for imaging the total wavefield, we extended the workflows to image the separated wave fields of specular reflections and diffraction energy. Imaging diffraction energy provides accurate imaging of faults and basement fractures, and with the integration of the various analyses and attributes, fracture characterization can be optimized.","PeriodicalId":442360,"journal":{"name":"Proceedings of Indonesian Petroleum Association, 46th Annual Convention & Exhibition, 2022","volume":"2013 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":"128174561","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":"Application of Relative Permeability Modifier for Fluid Loss Control During TCP Shoot & Pull to Improve Rig Efficiency - Offshore Indonesia","authors":"A. Pratama","doi":"10.29118/ipa22-e-24","DOIUrl":"https://doi.org/10.29118/ipa22-e-24","url":null,"abstract":"Five wells were drilled to produce gas from a sandstone formation with gross intervals of 314-696 ft. The operator required underbalanced perforating to improve perforation clean-up and avoid formation damage from the wellbore fluid. Underbalance (UB) perforating was carried out in previous campaigns with a modular gun system conveyed on wireline, allowing the perforation guns to be dropped into the rat-hole after firing. However, this technique couldn't be implemented for these cases due to a high deviation angle and limited rat-hole length. Several options were available, such as the Coiled Tubing (CT) live-well deployment system and modular gun with detaching system. However, these options increase the risk and rig time requirements. Therefore, Tubing Conveyed Perforating (TCP) shoot and pull was selected as the primary technique with the risk of formation damage during well kill operation. To minimize formation damage, a Relative Permeability Modifier (RPM) was pumped to reduce fluid loss and allow the well to be killed with minimal or no damage. RPM was selected as it is a solids-free fluid compatible with the formation that doesn't require a post-clean-up operation, potentially saving 2-3 days of rig-time. The TCP gun was run with a circulation sub, allowing oil-based fluid to be pumped above the circulating valve to create a 600 psi underbalance on the first well while the rest of the wells were perforated overbalanced. Once the TCP gun was fired, oil-based fluid was circulated with the brine, and RPM was placed into the formation to create a +/-300 psi overbalance condition. Once the well was killed, the TCP gun was pulled safely to surface. The RPM successfully reduced fluid loss in all five wells, where the highest static loss rate encountered after perforating was 160 bbl/hr, which was reduced to 7 bbl/hr after the RPM was pumped.","PeriodicalId":442360,"journal":{"name":"Proceedings of Indonesian Petroleum Association, 46th Annual Convention & Exhibition, 2022","volume":"230 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":"127013342","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}