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  1. Formation mineral content key to successful sandstone acidizing

    Magazine Articles

    Mon, 30 Aug 1999

    formation. Clay stability Clay decomposition in HCl (hydrochloric) acid is a recent, important ..... minerals should be considered unstable in HCl acid. Zeolites are very unstable in acid ..... temperature. Halliburton researchers pumped HCl acid into a long column with illite dispersed

  2. Calcium carbonate LCM damages certain formations in Qatar

    Magazine Articles

    Mon, 8 Jan 2001

    dolomitic bio-micrite. Corresponding HCl solubilities of the formation samples range ..... psi, before treating the 15% sample with HCl (Fig. 4). Click here to enlarge image ..... 4-6). Following treatment with 15% HCl , two wormholes broke through the outlet

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  1. Saudi Aramco optimizes acid fracturing in the Khuff carbonate reservoirs

    Magazine Articles

    Mon, 18 Feb 2002

    originally designed straight and emulsified 28% HCl acids. Oriented perforations have reduced ..... treatment called for about 30,000 gal of 28% HCl , with a slightly larger pad volume required ..... stage consisted of 32,000 gal of 28% HCl acid. Saudi Aramco performed the acid

  2. Range posts Marcellus shale fracing disclosure

    Online Articles

    Fri, 13 Aug 2010

    gal/1,000 gal water. • 1,133 gal HCl acid, 139 gal/frac stage not diluted and 2 ..... 10 gal/1,000 gal water. • 607 gal HCl acid, 139 gal/frac stage not diluted and 1 ..... 10 gal/1,000 gal water. • 544 gal HCl acid, 139 gal/frac stage not diluted

  3. FOUR STEPS SOLVE CRUDE-TOWER OVERHEAD CORROSION PROBLEMS

    Magazine Articles

    Mon, 5 Jul 1993

    related failure caused by hydrochloric acid ( HCl ) attack (Fig. 1). Affected components ..... these chloride salts hydrolyze to form HCl . Of these salts, NaCl is the most heat ..... program can be implemented to deal with the HCl evolved. Ammonia, morpholine, or higher

  4. New correlation predicts dewpoints of acidic combustion gases

    Magazine Articles

    Mon, 22 Feb 2010

    flue gases containing SO 3 , SO 2 , NO 2 , HCl , HBr, and H 2 O. Dewpoint temperature is ..... typical flue gas (SO 3 = 3 ppm (vol); HCl = 300 ppm (vol); H 2 O = 30 vol %), the H 2 SO 4 and HCl dewpoints are about 136° and 72° C., respectively

  5. Acid washes, oxygenate scavengers work against gas gathering failures

    Article

    Mon, 1 Jul 2013

    determination is similar to soluble iron but in the presence of HCl or nitric acid. The photometric method can present ferrous and ferric ..... to 1 wt % and mixed with an appropriate corrosion inhibitor. HCl can dissolve deposits from carbonates, phosphates, and iron

  6. Petrochemical Report Revamp of Ukraine VCM plant will boost capacity,Lreduce emissions

    Magazine Articles

    Mon, 13 May 1996

    generation. The offgases are sent to the HCl recycle unit. Raw EDC (99.5% pure ..... the organic phase and offgas are sent to HCl recovery. The dry bottoms from the dewatering ..... product from the vacuum column also is sent to HCl recovery. Section 3 The purified EDC is

  7. COILED TUBING - Conclusion: BP develops guidelines for 16Cr CT

    Magazine Articles

    Mon, 17 Jul 2006

    commonly used on the North Slope, including HCl and mud acid. Inhibition loading for chrome ..... cost increase is 20% and 31% for 15% HCl acid and 9:1 mud acid, respectively ..... test has been completed with 50 bbl of 10% HCl and standard corrosion inhibition (no

  8. Optimized stimulation strategies enhance Aramco gas production

    Magazine Articles

    Mon, 4 Oct 2010

    treatment consisted of high-temperature 28% emulsified HCl acid and in situ gelled HCl acid. The planned job had four pad stages between ..... the well treatment included 10,000 gal of 15% HCl . The poststimulation rate was excellent, about 30

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