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Keywords: acid
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Proceedings Papers

Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 10–12, 2023
Paper Number: SPE-215460-MS
... damage. This paper provides an explanation of the evaluation process for scale problems and proposes an acidizing solution to mitigate the issue. The team performed a comprehensive water analysis, evaluating various parameters and comparing the data with those from other areas in the DSF field...
Proceedings Papers

Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 10–12, 2023
Paper Number: SPE-215402-MS
... Abstract Acid fracturing is an essential technology for the efficient development of oil and gas reservoirs containing carbonate. However, in the case of deep and ultra-deep marine carbonate oil and gas reservoirs, existing acid fracturing technologies are unable to create a complex fracture...
Proceedings Papers

Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 10–12, 2023
Paper Number: SPE-215382-MS
.... Although this technique had positive impact on overall field production, but it was observed uneven flow through wellbore. An approach using Plug and Perforation technique was implemented successfully to reduce dissipate of fracturing energy during pumping and improve acid propagation. Multi-stage...
Proceedings Papers

Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 10–12, 2023
Paper Number: SPE-215336-MS
...Static Dissolution Tests This series of dissolution tests were performed at room temperature under ambient pressure and static conditions. Indiana limestone plugs were placed into beakers containing predesigned ratios of acids, i.e., a blend of organic and hydrochloric acid. The best...
Proceedings Papers

Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 10–12, 2023
Paper Number: SPE-215332-MS
... Matrix acidizing is a well-known stimulation technique to remediate the production decline due to formation damage. In limestone reservoirs, matrix acidizing is usually done with hydrochloric acid (HCl) due to its high dissolving power, easy commercial availability and cost effectiveness. HCl...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 12–14, 2021
Paper Number: SPE-205693-MS
... dioxide (CO 2 ) to form aqueous CO 2 (aq). Then H 2 O and CO 2 will react to yield carbonic acid (H 2 CO 3 ) under certain condition of temperature and/or pressure. H 2 CO 3 has solubility that will increases at low temperature and high pressure and the slightest changes in pressure and temperature...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 12–14, 2021
Paper Number: SPE-205621-MS
... upstream oil & gas crude enhancing rheological property reduction enhanced recovery kinematic viscosity acid naphthenic acid alcohol ethanol acidity petroleum engineer dosage trona viscosity tan crude oil total acid number Abstract One of Sudanese fields has a heavy...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil & Gas Conference and Exhibition, November 17–19, 2020
Paper Number: SPE-202223-MS
... Abstract Oil and gas companies operating carbonate oil and gas condensate fields in Kazakhstan have been carrying out acid stimulation activities leading to a substantial increase in hydrocarbon production. Nearly all treatments were considered a success. Nevertheless, a certain level...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil & Gas Conference and Exhibition, November 17–19, 2020
Paper Number: SPE-202416-MS
... drilling fluid selection and formulation drilling fluids and materials wellbore design drilling fluid management & disposal fluid loss control annular pressure drilling drilling fluid chemistry wellbore integrity directional drilling drilling fluid formulation citric acid water...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, October 23–25, 2018
Paper Number: SPE-192052-MS
... production of 2.2 mmscmd for the first five years ( Offshore Technology 2018 ). drilling fluid chemistry Completion Installation and Operations sand control drilling fluid selection and formulation Upstream Oil & Gas acid evaluation gas field drilling fluids and materials concentration...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 17–19, 2017
Paper Number: SPE-187019-MS
... While flowing in the fracture, acid may leak off through the wormholes and appear a finger-like pattern during the process of acid fracturing, which is commonly called "acid fingering". Acid fingering is an unsteady hydrodynamic phenomenon that happens when low viscous acid displaces more viscous pad...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 17–19, 2017
Paper Number: SPE-186234-MS
... and not as easily removed as with a conventional solvent or acid soaking job; thus preventing wireline entry for production surveillance and enhancement activities. Several mechanical, chemical and even combination techniques have been deployed with varied levels of success at Field P, which produces waxy crude...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 17–19, 2017
Paper Number: SPE-186313-MS
... Abstract Acid Fracturing technique is an alternative to propped fracturing in acid soluble formations. Factors controlling the effectiveness of acid fracturing are the etched fracture penetration and conductivity. Large volumes of acid and the dissolution of large volumes from thefracture faces...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 20–22, 2015
Paper Number: SPE-176419-MS
... Abstract Acid stimulation job is one of alternative technique used to improve well productivity. However, improper usage and design of this method may pose problems to the cements surrounding the perforation area of the well and it may lead to well integrity problems. Therefore a good...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 20–22, 2015
Paper Number: SPE-176060-MS
... Abstract This paper highlights the challenges and limitations encountered, and the respective solutions executed, during an acid stimulation campaign, conducted on multiple offshore power water injector (PWI) and oil producers (OP). The field development concept for the field in includes...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, September 20–22, 2011
Paper Number: SPE-145915-MS
... Table 1 Chemical composition of injected fluids. Variable J formation water Spent acid Drilling clean-out fluid Sodium, mg/L 61,309 < 10 6,648 Chloride, mg/L 123,560 194,520 86,890 Calcium, mg/L 12,875 109,400 39,735 Magnesium, mg/L 2,175 < 10 740...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, October 18–20, 2010
Paper Number: SPE-133005-MS
...°C. Three types of alkalis, namely, sodium hydroxide, sodium carbonate, and sodium bicarbonate were screened to define the suitable candidate. The acid used in the new formula was acrylic acid. It is a weak polymer acid and used widely as a precipitation inhibitor. Polymeric sodium methyl ester...

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