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Keywords: acidizing
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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-202257-MS
... Covering maximum possible or preferably full open hole (OH) interval during CT matrix acid stimulation of extended reach wells (ERWs) has been one of the foremost challenges for oil industry and particularly for production engineers ( Blikra et al. 1994 ). Over the last two decades many...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil & Gas Conference and Exhibition, November 17–19, 2020
Paper Number: SPE-202369-MS
... Abstract Acidizing is a widely used method for the well stimulation and Corrosion inhibitors (CIs) are essential in acidizing fluid to mitigate corrosion of metallic equipment. This calls for high-effective CIs as the demands for oil and gas still increases. This paper introduces several new...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil & Gas Conference and Exhibition, November 17–19, 2020
Paper Number: SPE-202305-MS
... acidizing may seek alkaline minerals that may also demonstrate greater potential for fracture failure. Combining these two attributes, stimulation thus includes the modification of the reservoir through a process achieving fractures and the introduction of proppant, small pressure resistant particles...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil & Gas Conference and Exhibition, November 17–19, 2020
Paper Number: SPE-202453-MS
... Abstract The requirement for appropriate placement in matrix acidizing to achieve efficient, effective stimulation or removal of formation damage has long been recognized. Despite this, assessing the effectiveness of an acid treatment in terms of placement and treatment efficiency prior...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 29–31, 2019
Paper Number: SPE-196376-MS
.... Matrix stimulation has been proven to remove the fines blocking the pore throat. The desired solution has been carefully selected to have prolonged well production. Organic clay acid is chosen for to its ability to have deeper penetration and to create a thin coating on the pore surface to prevent fines...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 29–31, 2019
Paper Number: SPE-196281-MS
... Abstract Treating deep hot carbonate reservoirs, such as those found in the Arabian Gulf, presents a series of complex and related challenges to achieve effective and uniform stimulation. Due to the elevated temperature and heterogeneous formation, achieving good reservoir contact with an acid...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, October 23–25, 2018
Paper Number: SPE-192066-MS
... Abstract This study investigates the performance of viscoelastic surfactant (VES)-based HCl stimulation fluids as a function of carbonate rock type and quantifies the response of the acid to different pore-structures. A pore-structure evaluation during stimulation design could lead...
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 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-176100-MS
... Abstract Matrix acidizing treatments are widely used for stimulating oil producing wells in the Zamrud field because of damage caused by scale plugging. The success of this matrix acidizing treatment depends on the uniform distribution of the treating fluid over the entire hydrocarbon-producing...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, October 18–20, 2010
Paper Number: SPE-132766-MS
... Abstract The energy global demand is predicted to increase by an estimated 2-4 percent annually over the next decade. However, production decline from mature field such as West Lutong is estimated about 5-6 percent annually. Therefore, acid stimulation provides a cost effective method...
Proceedings Papers

Paper presented at the Asia Pacific Oil and Gas Conference & Exhibition, August 4–6, 2009
Paper Number: SPE-121014-MS
... 203.25 24.7 22 55 6 17 N Ⅱ 4 20 4821–4828 7.2182 4.9215 50.2 23.2 19 61 8 22 waterflooding acidizing enhanced recovery Upstream Oil & Gas acid system sensitivity composite acid society of petroleum engineers fluid dynamics organic acid stimulation injection well...
Proceedings Papers

Paper presented at the Asia Pacific Oil and Gas Conference & Exhibition, August 4–6, 2009
Paper Number: SPE-123171-MS
... billion ton, and the gas reserve is 1.42 trillion. Formations of the newly discovered carbonate oil/gas fields have the following features: deep buried (>5000m); serious heterogeneity; full of pores, caves and cracks; long well section. So, it's difficult for acid stimulation treatment...
Proceedings Papers

Paper presented at the Asia Pacific Oil and Gas Conference and Exhibition, October 30–November 1, 2007
Paper Number: SPE-109118-MS
... Packing element's diesel-immersion test and indoor operation simulating test were conducted to initially verify the feasibility of sectional acidizing technology. Packing element's temperature resistance and pressure resistance diesel-immersion tests The packer's outer diameter is only...

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