Petroleum - English

    Acidizing Different Formations

    what is Acidizing Much of the worlds oil and gas comes from limestone (CaCO3) and dolomite (CaMg(CO3)2) formations, either in their relatively pure form or in the form of carbonate or siliceous sands cemented together with calcareous materials (CaCO3). Dolomites are similar to limestones with the exception that they generally react more slowly with hydrochloric acid. The primary method of stimulating wells drilled into these formations is to inject an acid treating solution. The acid dissolves part of the formation and may also dissolve other acid soluble material (mud damage, scales etc.), which is restricting or blocking the flow of oil or gas from the formation. Matrix acidizing increases the flow capacity of a producing formation when…

  • acidizing

    Acidizing Concepts

        Acid Types Although many acid compounds are available to the oil industry, only the following types have been proven economically effective in oil well stimulation: Inorganic Acids (Strong). · Hydrochloric Acid (HCl). · Hydrofluoric Acid (HCl:HF). Other inorganic acids include Sulphamic, Sulphuric and Nitric acids. Organic Acids (Weak). · Acetic Acid and Glacial Acetic Acid. · Acetic Anhydride. · Citric Acid. · Formic Acid. Inorganic Acids Hydrochloric Acid (HCl). Hydrochloric acid is an inorganic acid and is the most commonly used acid in oil well stimulation. Hydrochloric acid has many advantages in its application as follows: · Low cost and availability. · Easily inhibited to prevent attack on oil-field tubulars.…

  • Petroleum Reservoirs Books 1

    a collection of FREE books about petroleum reservoirs: contains reservoir engineering, reservoir simulation, Carbonate Reservoirs and many others. Basic Well Logging and Formation Evaluations Download Porosity and Permeability Prediction Download Petroleum Reservoir Traps Download Gas Reservoirs Download Reservoir Engineering Download  Reservoir Description Download Principles of Well Logging and Formation Evaluation – M.M. Badawy Download Petroleum Reservoir Engineering Physical Properties Download Open Hole Log Analysis and Formation Evaluation Download Reservoir Engineering Aspect of Fractured Formations Download Porosity, Permeability and Skin Factor Download Carbonate Reservoir Characterization Download  Reservoir Engineering Books    Reservoir Engineering ZIP 91 MB Download Reservoir Engineering 8.5 MB Download  Oil Reservoir Engineering PowerPoint 4.6 MB Download Gas Reservoir Engineering…

  • Oilfield Chemicals
    Petroleum - Arabic

    Chemical Additives in Oil Wells’ Drilling

    المواد الكيمياوية المستعملة في حفر الآبار النفطية   Chemical Additives in Oil Wells’ Drilling هناك العشرات من المواد الكيمياوية التي تستعمل في المراحل المختلفة من صناعة النفط والغاز الطبيعي مثل : الحفر Drilling – الإكمال Completion – ومرحل أنتاج النفط والغاز الطبيعي. وسنحاول أن نلقي الضوء على قسم منها ، وتتضمن هذه المواد الأملاح غير العضوية – المواد المعدنية – البوليمرات Polymersالذائبة في الماء والنفط والمواد النشطة سطحياً . حيث تستخدم أغلب هذه المواد لديمومة الإنتاج في الحقول التي تعاني من النضوب.  لقد بدأت المواد الكيمياوية تأخذ دوراً كبيراً في صناعة النفط والغاز الطبيعي ، حيث يمكن أستخدامها في تحسين الإنتاج من هذه الحقول ، ويوماً بعد يوم ستأخذ الاعتبارات البيئية…

  • completion

    Completion Techniques

        by Abass Radhi Abbas 1.General Communication between the formation and the wellbore will directly affect the productivity of the well. Factors such as hydrocarbon saturation, porosity, permeability, fluid properties and geometry can be measured or inferred from the measurements but they cannot usually be controlled. By contrast, completion can be controlled and thus affect well performance. During the drilling, logging and testing phase of the well, valuable information will have been gained and the relevant completion technique chosen. There are two main categories of completions to consider with, of course, many variations; –  Open hole Completions. – Cased Hole Completions. 1.1.Openhole Completions An open hole completion is when…