Browsing by Subject "matrix acidizing"
Now showing items 1-14 of 14
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(2021-07-12)Acidizing is a common technique used in completing wells in carbonate reservoirs to reduce skin factor. Generally, HCl is pumped into the formation where it will react with calcite and dolomite in the carbonate rock. The ...
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(2012-02-14)It has been a practice to use seawater for preparing acid in offshore operations where fresh water is relatively expensive or logistically impossible to use. However, hydrochloric acid will release calcium ion into solution, ...
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(2012-07-16)Matrix acidizing is a well stimulation technique used to remove formation damage in the near wellbore region. But it comes with an associated set of challenges such as corrosion of the tubulars and iron precipitation in ...
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(2018-09-20)Various open-hole completion and stimulation designs used in horizontal wells in carbonate reservoirs cause hydrochloric acid (HCl) to be jetted onto the wellbore surface at high velocity. To properly design a limited entry ...
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(2017-07-31)The viscoelastic surfactant (VES) is one of the newest chemicals that have been used as diverting agents to divert the acid to the desirable zones through directing the acid to the lowest permeability formations by building ...
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(2015-05-05)Determination of optimal acidizing conditions through laboratory experimental study is crucial for designing matrix acid stimulation jobs in the field. Optimum interstitial velocity, vi-opt (the velocity of injected fluid ...
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(2010-01-16)The main purpose of acid/water jetting treatments currently applied in the field is to clean up the filter cake formed during the drilling process and perhaps further stimulate the wellbore by creating wormholes if acid ...
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(2019-11-19)Matrix acidizing is an effective stimulation technique for carbonate reservoirs and it has been practiced for years in the industry. By injecting acid below the formation fracturing pressure, highly permeable paths called ...
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(2014-08-07)Matrix acidizing has historically been a common means of removing formation damage and increasing the productivity of petroleum wells. Organic acids have been used in an effort to minimize the corrosion problem and the ...
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(2016-07-15)Matrix acidizing is a well stimulation technique in which an acid solution is injected into the formation to dissolve some of the minerals to recover or increase the permeability in the near-wellbore region. The most common ...
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(2013-07-23)Matrix acidizing is a well stimulation procedure where acid is injected down the wellbore or coil tubing and into the reservoir near the wellbore region. Wellbore damage is a common issue in the oil field. The primary goal ...
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(2016-12-09)Carbonate rocks have complex heterogeneities that result from syn- and post-depositional stressors. These heterogeneities invariably affect the movement of fluid through the formation. When considering an acid treatment ...
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(2012-07-16)Matrix acidizing is used in carbonate formations to create wormholes that connect the formation to the wellbore. Hydrochloric acid, organic acids, or mixtures of these acids are typically used in matrix acidizing treatments ...
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(2017-12-11)Matrix acidizing treatments are commonly used to improve the productivity of oil and gas wells in carbonate reservoirs. For a given volume of acid injection, the optimal injection rate can achieve the deepest wormhole ...