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  1. SPECIAL REPORT: Straddle packer assemblies allow selective completions, stimulations

    Magazine Articles

    Mon, 18 Aug 2008

    involved pumping a combination of treatment fluids including ammonium chloride brine, butyl glycol acetate, 10% hydrochloric acid , 9:1 mud acid, and 4% xylene. The pump maintained a flow regime of about 43-50 gpm through the straddle system

  2. Custom-designed process treats CBM produced water

    Magazine Articles

    Mon, 14 Jul 2008

    controls. The use of sulfuric acid further helps meet upcoming stringent chloride limits in the Powder River basin. Hydrochloric acid use for ion exchange regeneration by other systems may produce leakage of chlorides that may not meet discharge standards

  3. Optimized stimulation strategies enhance Aramco gas production

    Magazine Articles

    Mon, 4 Oct 2010

    proppant, and Saudi Aramco has used between 50,000-500,000 lb in treatments conducted to date. The use of 28% hydrochloric acid is common for carbonate reservoirs (Khuff). The jobs include either fracturing or matrix acidizing, depending

  4. Non-frac stimulation technologies mark progress too

    Magazine Articles

    Mon, 22 Sep 2008

    is undoubtedly difficult to develop an acid corrosion inhibitor that will stand up to the corrosive environment of hydrochloric acid at high temperatures and then biodegrade in North Sea water at 20° C. “Halliburton researchers screen ingredients

  5. Billions of barrels in Bakken recovery seen in Williston

    Magazine Articles

    Mon, 11 Dec 2006

    formation contains iron pyrite, which forms an iron hydroxide precipitate when exposed to the common fracturing fluid hydrochloric acid . “There are reported cases of this phenomenon causing irreparable well damage,” EIA said. The former Lyco

  6. Corrosion problems solved in CT nitrogen operations off Brazil

    Magazine Articles

    Mon, 15 Sep 2008

    Consequently, this causes an increase in salt concentration, FeCl 2 . This salt undergoes hydrolysis, creating hydrochloric acid , HCl (H + + Cl - ), as shown in Equations 3 and 4. The increase in ions (H + ), means the pH drops, which

  7. Ionic liquid alkylation process produces high-quality gasoline

    Magazine Articles

    Mon, 23 Oct 2006

    adjusting the IL’s acidity by varying either the molar fraction of aluminum chloride (AlCl 3 ) of the IL or adding hydrochloric acid (HCl). 10-12 A study showed that adding aromatic hydrocarbons and metal chlorides to aluminum chloride-dialkyl

  8. SPECIAL REPORT: Technology advances continue to unlock additional resources

    Magazine Articles

    Mon, 28 Jan 2008

    acid-oil emulsion. The paper describes the typical treatment as consisting of a linear-gel pad fluid, raw 20% hydrochloric acid , acid-internal emulsion (AIE), linear-gel pad fluid, followed by the self-diverting acid based on a viscoelastic

  9. New correlation predicts dewpoints of acidic combustion gases

    Magazine Articles

    Mon, 22 Feb 2010

    most important acidic gases—SO 3 , SO 2 , NO 2 , hydrochloric acid , and hydrobromic acid. The correlation can accurately ..... path components. 4 Fig. 1 shows sulfuric acid and hydrochloric acid dewpoint corrosion occurring in a typical flue-gas

  10. E q u i p m e n t / S o f t w a r e / L i t e r a t u r e

    Magazine Articles

    Mon, 9 Feb 2009

    enables the valves to operate in harsh chemicals, suiting them for use with chlorine, ethylene dichloride, and hydrochloric acid . Polymer valves operate in a similar fashion to their metal and fiberglass counterparts, the firm notes. Valves

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