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All Journal Techno LPPM Journal of Petroleum and Geothermal Technology International Journal of Entrepreneurship and Sustainability Studies Scientific Contributions Oil and Gas
KRT Nur Suhascaryo
Department Of Petroleum Engineering, Universitas Pembangunan Nasional Veteran Yogyakarta
Chemical Engineering, Chemistry & Bioengineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Energy Engineering Environmental Science Social Sciences

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Optimization of Squeeze Cementing Using Ultrafine Cement in Tight Talang Akar Formation, Ramba Field Ayi Yanuardi; KRT Nur Suhascaryo; Dyah Rini Ratnaningsih
Journal of Petroleum and Geothermal Technology Vol. 7 No. 1 (2026): May
Publisher : Universitas Pembangunan Nasional "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jpgt.v7i1.14744

Abstract

Ramba Field, Pertamina Hulu Rokan Zone 4 is located in South Sumatera, Indonesia. There are secondary cementing problems due to the tight injectivity rate. The failure caused a loss of time and a loss of production opportunity. This paper aims to demonstrate the successful application of ultrafine cement in rejuvenating a brownfield site in South Sumatera by effectively shutting off water channels. The approach involved a thorough reservoir analysis to identify water­ producing zones and optimize well placement. Ultrafine cement was then precisely placed using advanced cementing techniques, targeting water channels and permeable zones. Reservoir characteristics in the Talang Akar Formation have a good permeability and a normal injectivity rate, but when using conventional slurry, it was difficult to inject into the reservoir. Ultrafine cement material has a smaller particle size than conventional cement, which gives it the penetration ability to seal thief channel behind the casing and even the pore throat. The application of ultrafine cement led to a substantial reduction in water production, resulting in improved well productivity and enhanced sustainability of reservoir operations. The cement bond data result showed improved amplitude that could not be achieved by conventional Class G oil well cement and brought effect to decreasing water cut result. Ultrafine Cement with finer grain material (3-5 micron)/1000 Mesh compared to normal API Class G Cement around 325 Mesh resulting Low permeability slurry and rapid compressive strength that able to penetrate tiny channel behind casing. It was effective to improve cement bond in microchannel and restrict fluid flow in unwanted zone resulting Good CBL (<10 mV). This method can keep the production up to true reservoir production performance while minimizing water management issues and repetitive squeeze cement job and reduce rig cost. This paper contributes novel insights by showcasing the successful utilization of ultrafine cement for water shut-off in brownfield rejuvenation efforts. By emphasizing the link between effective water management and sustainable well production, it adds valuable knowledge to the petroleum industry's quest for environmentally conscious and economically viable reservoir management practices that are applicable to tight reservoirs around the world.
Evaluation of Electrical Submersible Pump (ESP) Based on Energy Loss Analysis At South-Eeast Sumatra (SES) Block Andika Rizky Febrianto; Suranto; KRT Nur Suhascaryo; Muhammad Nauval Rizki; Riko Meidiya Putra; Slamet Kurniansyah
Journal of Petroleum and Geothermal Technology Vol. 7 No. 1 (2026): May
Publisher : Universitas Pembangunan Nasional "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jpgt.v7i1.16402

Abstract

The production wells in the South-East Sumatra (SES) Block are characterized as a mature field with a high water cut, requiring significant energy to lift fluids to the surface. The main challenge faced is the high energy inefficiency of the Electrical Submersible Pump (ESP). Therefore, this study aims to evaluate ESP performance based on energy loss analysis, determine the best optimization scenario to reduce energy requirements, and analyze potential operational cost savings. The research method involves evaluating the distribution of energy losses in hydraulic components (friction, backpressure, and pumps) and electrical components (motor, cables, and surface equipment). Based on this evaluation, three optimization scenarios were conducted: backpressure loss, frictional loss, and pump loss. Furthermore, a cost savings analysis is carried out by comparing the costs before and after optimization. The results indicate that energy inefficiency in high flow rates wells is dominated by backpressure and friction, while in relatively small flow rates wells is caused by low pump efficiency and backpressure. The application of the best optimization scenario in the five wells can reduce the total energy requirement from 768.83 kW to 568.21 kW. This resulted in a cost reduction from US$512,641 to US$378,869.
Co-Authors Alp. Yuwidiantoro AM Suranto Andi Novita Mama Anugrah Andika Rizky Febrianto Ayi Yanuardi Boni Swadesi CIIQA CIIQA, CIIQA Deni Kurniawan Dyah Rini Ratnaningsih Endah Wahyurini Endah Wahyurini, Endah Guntoro, Yuan Cahyo Halwin Ariandi Siregar Harry Budiharjo Sulistyarso Inrianto Pratomo Karyono Karyono Mama Anugrah, Andi Novita Mochamad Jalal Abdul Goni Muhammad Nauval Rizki Nurwijayanti Pratomo, Inrianto Ridwan Ridwan Ridwan Riko Meidiya Putra Sandy Candra Yudha Halilintar Slamet Kurniansyah Sudarmoyo Sudarmoyo Sudarmoyo, Sudarmoyo Suranto Suranto Suranto Wewen Afterian Yuan Cahyo Guntoro