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Acidizing

Acidizing news and technical articles from Oil & Gas Journal. Search Acidizing latest and archived news and articles

  1. Formation mineral content key to successful sandstone acidizing

    Magazine Articles

    Mon, 30 Aug 1999

    To improve the success of sandstone- acidizing , operators must know the mineral content ..... iron control additives will not make an acidizing treatment more effective because these ..... blocking precipitates during sandstone acidizing treatments. The three main mineral groups

  2. SPECIAL REPORT: CO 2 overcomes sandstone acidizing problems

    Magazine Articles

    Mon, 30 Sep 2002

    the formation and overcomes sandstone acidizing problems that may occur with conventional ..... because of spent-acid returns. 1 CO 2 - acidizing jobs should include enough CO 2 to completely ..... zone to be contacted by acid. Sandstone acidizing There is a fundamental difference between

  1. EXPERIENCE AND RESEARCH SHOW BEST DESIGNS FOR FOAM-DIVERTED ACIDIZING

    Magazine Articles

    Mon, 6 Sep 1993

    patterns. Specifically, one can view HF acidizing as an interstitial process. That is ..... dissolution patterns. Specifically, carbonate acidizing can be viewed as a process that generates ..... result, diversion in limestone matrix acidizing can be quite difficult to achieve. The

  2. BULLHEAD ACIDIZING SUCCEEDS OFFSHORE CALIFORNIA

    Magazine Articles

    Mon, 11 Apr 1994

    completion. One of the keys to successfully acidizing the Monterey is to treat the damaged ..... fluids. In previous treatment attempts, acidizing fluid tended to enter the undamaged zones ..... surfactant should be employed in all acidizing jobs to prevent damage caused by water

  3. Process, optimized acidizing reduce production facility upsets

    Magazine Articles

    Mon, 10 Feb 1997

    Surface active agents, required in acidizing to improve well productivity, can form ..... But recent offshore experiences after acidizing show that operators can achieve oil and ..... acidic pH containing up to 3% HCl acid. Acidizing problems Matrix sandstone acidizing improves

  4. EXPERT SYSTEMS HELP DESIGN CEMENTING AND ACIDIZING OHS

    Magazine Articles

    Mon, 19 Apr 1993

    applications as cement slurry design and matrix acidizing . Rules determine how to use the collected ..... Dispersants Defomers. For the matrix acidizing system, three expert teams and one team ..... with the desired downhole properties. ACIDIZING Several basic problems can reduce or

  5. In situ gels improve formation acidizing

    Magazine Articles

    Mon, 20 Jan 1997

    These acids have been used for: Matrix- acidizing long horizontal and vertical well intervals Controlling fluid loss in fracture acidizing to obtain longer fractures and deeper ..... fold. In carbonate formation fracture- acidizing , these acids have shown production improvements

  6. Mineralogy-based acid design restores sandstone productivity

    Magazine Articles

    Mon, 21 Jun 2004

    selection process of candidate wells for acidizing treatments in sandstones must identify ..... for a workover, but the selection of acidizing candidates is complicated. Complicating ..... producing zones and for selecting zones for acidizing , but the SSDs also present challenges

  7. Kazakhstan: Oil flow natural at Doris appraisal

    Online Articles

    Thu, 7 Jul 2011

    stabilized at 520 b/d of light oil from the Upper Jurassic carbonate zone without acidizing , an encouraging commercial rate, said Tethys Petroleum Ltd. Acidizing is planned within 2 weeks, after which the well will be put on extended production

  8. Mineralogy-based acid design restores sandstone productivity

    Online Articles

    Fri, 11 Jun 2004

    Click on the pdf link below to view entire article. The selection process of candidate wells for acidizing treatments in sandstones must identify relevant damage mechanisms and mineralogy-driven remediation options.

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