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Keywords: acid
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Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Caspian Technical Conference and Exhibition, November 26–28, 2024
Paper Number: SPE-223416-MS
... in the filter cake which was calcium carbonate causing the removal of the filter cake to be successful. Besides that, the ability of the chelating agents to provide low corrosion potential made chelating agent as a great alternative for live mineral acids. This provided less aquatic toxicity, more human...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Caspian Technical Conference and Exhibition, November 26–28, 2024
Paper Number: SPE-223386-MS
... in the fracturing treatment to guarantee successful flowback of the fracturing fluids. When depleted wells are stimulated with traditional acid fracturing fluids, nitrogen lifting is required to allow for flowback. Incorporating nitrogen into the treatment itself eliminates the need for this resulting in time...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Caspian Technical Conference and Exhibition, November 26–28, 2024
Paper Number: SPE-223395-MS
... with longitudinal fracture and stimulated with multiple transverse fractures. The injectivity index was calculated for each scenario based on a model which was calibrated with injection history match. Both proppant and acid fracturing scenarios were modeled and described in detail within the study showcasing...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Caspian Technical Conference and Exhibition, November 26–28, 2024
Paper Number: SPE-223439-MS
... tools. Finally, these results were analyzed to come up with the optimal stimulation fluids for use in particular geological conditions. The most common fluid systems are gelled HCl acid, emulsified acid systems, different variations of viscoelastic surfactant-based systems, nitrogen and carbon dioxide...
Proceedings Papers
A. Kydyrgazy, A. Yessaliyeva-Gozukara, S. Schomaker, A. Bibolova, D. Issayev, A. Azhigaliyeva, A. Berdibekov, R. Manakhayev, N. Tlepbergenov, Yong Fan, A. Slobozhaninov, R. Kruglov
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Caspian Technical Conference and Exhibition, November 26–28, 2024
Paper Number: SPE-223394-MS
... Abstract Acid fracturing is a widely accepted technique to enhance production for carbonate reservoirs. This has been considered suitable for Tengiz Unit 2 reservoir development, which is characterized by tight matrix quality and low level of natural fracturing. Given the recent initiation...
Proceedings Papers
Y. Umurzakov, A. Meiman, A. Nurkas, A. Kurmankulov, A. B. Bigeldiev, A. Kuvanyshev, B. Amangaliyev, M. Zhabagenov, A. Yorillo, T. Oppeneau
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Caspian Technical Conference and Exhibition, November 26–28, 2024
Paper Number: SPE-223462-MS
... Abstract Uranium is crucial to the nuclear fuel industry, with Kazakhstan providing about 45% of the global supply, mainly through in-situ leaching (ISL) mining methods. ISL involves injecting a leaching agent to dissolve uranium oxides, which are then extracted as a solution. Optimizing acid...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Annual Caspian Technical Conference, November 15–17, 2022
Paper Number: SPE-212085-MS
... Abstract A comprehensive study of about 200 production stimulation treatments in carbonate and sandstone formations of Karabulak and Aryskum brownfields was performed. The stimulation methods analyzed in this study are propped fracturing, acid fracturing, matrix acidizing with different fluids...
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Options for the article titled, Comparison and Optimization of the Various Stimulation Methods: Case Study of Aryskum and Karabulak Fields
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Proceedings Papers
Beibit Daulbayev, Bauyrzhan Naukanov, Yerbol Khaidarov, Mae Esperon, Mirko Heinerth, Michael Freeman, Song Yan
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Annual Caspian Technical Conference, October 21–22, 2020
Paper Number: SPE-202521-MS
... test separator, chokes, lines). Collect downhole samples. Modelling work. Acid, solvent, fresh water diagnostic soaks. Perform PTA ( Bukharbayeva et al., 2019 ). Further investigate deterioration mechanism and start working on preventative program for a long term. Organic deposits (asphaltenes...
Proceedings Papers
Asfandiyar Bigeldiyev, Dmitriy Abdrazakov, Dmitriy Kovyazin, Assem Batu, Vladimir Malyshev, Dmitriy Sidorov, Gernot Voigtlaender, Talgat Nauruzov
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Annual Caspian Technical Conference, October 21–22, 2020
Paper Number: SPE-202575-MS
... multiple realization approach acid optimum production stimulation strategy Introduction and Literature Review A task of finding optimum production stimulation strategy, in practice, is a reverse problem that can be summarized in a single sentence: to achieve the desired result, one needs...
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Options for the article titled, Multiple Realization Approach in 3D Dynamic Modeling Under Hydraulic Fracturing and Geological Uncertainties
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Proceedings Papers
Amr Abd El Baky, Nawaf Al-Shuaibi, Alaa Eldine Alboueshi, Mohamed Elmofti, Ebrahim Elafify, Meshal Alkhaldy, Ahmed Allam, Walid Eid, Anfal Ashkanani
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Annual Caspian Technical Conference and Exhibition, October 31–November 2, 2018
Paper Number: SPE-192570-MS
... Abstract The execution of pinpointed multi-stage acid fracturing inside 4-1/8-in. slim horizontal open hole sections is discussed. For the first time in Kuwait, pinpoint stimulation of 16 frac stages across a total 4,666 ft open hole while commingling three reservoir sections in very low...
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Options for the article titled, <span class="search-highlight">Acid</span> Fracturing Depleted Carbonates Improving Very Low Reservoir Quality Inside Slim Horizontal Open Hole
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Proceedings Papers
M. Y. Golenkin, I. R. Khaliullov, A. P. Byakov, A. B. Charushin, K. V. Burdin, S. A. Vereschagin, O. V. Olennikova, A. A. Borisenko, M. A. Lobov, V. Kobets
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Annual Caspian Technical Conference and Exhibition, November 1–3, 2017
Paper Number: SPE-189027-MS
... of water-absorbing well injectivity while simultaneously straightening the profile by a temporary isolation of high-absorbing intervals. To achieve the objectives, two operations needed to be performed: large-volume acidizing of J3V Volgian regional stage and acid spotting in the interval of the Neocomian...
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Options for the article titled, First Implementation of Diversion Stimulation Service with Multimodal Particles in Caspian Offshore Oilfield
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Proceedings Papers
Assol Kubeisinova, Massimo Viti, Enzo Pitoni, Arman Izbassov, Maxim Moisseyev, Nartas Yessekenov, Ruslan Kalabayev, Yerzhan Sultanov
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Annual Caspian Technical Conference and Exhibition, November 1–3, 2017
Paper Number: SPE-189030-MS
... reducer Karachaganak oil-based stimulation fluid drilling fluid selection and formulation drilling fluids and materials displacement fluid acid reduction stimulation fluid production enhancement crude oil operator society of petroleum engineers well intervention downhole intervention...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Annual Caspian Technical Conference & Exhibition, November 1–3, 2016
Paper Number: SPE-182554-MS
... Abstract One of the main factors affecting the type of stimulation treatment in carbonates is reservoir properties. Acid fracturing effectiveness, in terms of economics and production increase, could be potentially more beneficial than matrix acidizing in case of low permeability...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Annual Caspian Technical Conference and Exhibition, November 12–14, 2014
Paper Number: SPE-172338-MS
... Abstract To improve reservoir management and field recovery, Karachaganak Petroleum Operating b.v. (KPO), the operator of the giant Karachaganak gas-condensate field in Kazakhstan, drills long horizontal wells and then stimulates them with acid. A variety of different acid stimulation...
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Options for the article titled, A New Era of Effective Reservoir Management: Completion and Stimulation Technology Evolution in the Karachaganak Field
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Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Annual Caspian Technical Conference and Exhibition, November 12–14, 2014
Paper Number: SPE-172340-MS
...) completions, to selective and non-selective multilateral wells, and most recently to extended horizontal wells. Acid stimulation, both matrix and fracturing, are the common method to improve well productivity in this highly heterogeneous formation. Multi-stage acid fracturing was identified as a potential...
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Options for the article titled, Openhole Multistage Fracturing Completion with Swelling Packers and Sliding Sleeves in Carbonate Reservoir - A Case History from the Karachaganak Field
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