• oilfield operator
    Petroleum - English

    how to become a successful oilfield operator

    Oilfield Operator: first of all, we have to define the routine jobs of the oilfield operator: – observe and check all the process parameters from the control room. – walk in patrols around the process, watch the equipment, report any possible leak, unusual sound or vibration. – write all the field readings such as pressure, temperature or levels and compare them with the values from the control room. and that happens by radio communication with the control room man to make the required adjustments to the valves, level and pressure transmitters. –  start and stop pumps, air compressors, heaters and any other equipment manually. – collect samples from different lines…

  • electrostatic-desalter
    Petroleum - English

    Operation Problems in Wet Crude Treatment Plant and their Solutions

    Wet Crude Treatment in Brief as we mentioned in previous articles, it is required to remove water and salts from crude oil for its bad effects on oil treatment equipment and processes, and we said that wet crude has to be dehydrated and desalted in Wet Crude Treatment Plant and talked lengthily about Optimizing Wet Crude Treatment and how to get better results in this type of treatment by using heat, electricity, wash water ratio and Pressure Differential through Mixing Valve. for further information about this topic see Emulsion Treating Part 1 & Emulsion Treating Part.2 . wet crude treatment is a very accurate process, and need a lot of attention to achieve…

  • petroleum engineering
    Petroleum - English

    Petroleum Engineering Handbook 7 parts FREE download

    the best book about Petroleum Engineering Handbook this is one of the best books about petroleum engineering , consists of 7 parts, each part discuses a certain category of oil industry, Petroleum Engineering Handbook – Part 1  General Engineering : this part is general, you can find the following topics in it: – Mathematics. – Fluid Flow. – Gas Properties and Oil Corelations. – Thermodynamics. – Crude Oil Emulsions. – Rock Properties – Porosity – Permeability. – Petroleum Economics. Download part 1 Petroleum Engineering Handbook – Part 2  Drilling Engineering: this part is about Drilling, you can find the following topics in it: – Introduction to Drilling. – Drilling Fluids.…

  • Petroleum - English

    Performance Analysis of Hydraulic Fracturing Technique and HIWAY Flow Channel Fracturing

    PERFORMANCE ANALYSIS OF HYDRAULIC FRACTURING technique AND HIWAY FLOW-CHANNEL FRACTURING –HASSI MESSAOUD Field Case Study– MESSAOUDI Khalid (1), ABIDI SAAD Nouh (2) 1 Engineering Servicing, Technical Division, SONATRACH DP STAH, IlliZi 33000 1 Computational Mechanics Laboratory, Tlemcen university, Tlemcen13100 2 Drilling Division, SONATRACH, Hassi Messaoud, 30500 Abstract Nowadays, Hydraulic fracturing Techniques is the highest method that can be used to enhance oil field productivity been depleted, this technical stimulation takes different names as conventional or unconventional fracturing, but it has the same goal to allow us to increase the productivity of the injectivity in the wells. What’s the Technique that can be used? It is probably a big issue that can…

  • desalter
    Petroleum - English

    Wet Crude Oil Treatment Plant

    what is Wet Crude? in the beginning of the production from any reservoir the crude oil contains no water and salt; with time it begins to produce large amounts of water and salt, although the density difference guarantee that water stays bellow crude oil in the reservoir, but sometimes water content will with time. wet crude facility was founded to reduce the negative effects of water and salt content, especially on the crude oil production and treatment equipment, the crude oil price, and specification. during wet crude treatment, salt and other impurities are removed from oil, these salts are dissolved in the reservoir water. it is either free water, this thing makes…

  • wet crude treatment vessel
    Petroleum - English

    Optimizing Wet Crude Treatment

    Emulsion Treatment Steps In general, the treatment of water emulsions in crude oil consists of 3 stages: emulsion breaking: includes breaking the film that surrounds the water droplet, by the aid of heat and demulsifier. water droplet coalescence: water droplets combine with each other after breaking the emulsion and being free forming big droplets, coalescence is a function of time, when there is enough time; more coalescence happens, this happens with the aid of an electrostatic field and water washing. settling: because of gravity, bigger droplets settles and go downward the vessel. These steps should happen consecutively, the main step of all the process is the coalescence, it is the…

  • foam
    Petroleum - English

    foam in oil gas separators

    foam in crude oil foam is a small bubbles of gas surrounded with a thin film of oil, this phenomena reduces the separation efficiency, foam exists in the gas oil interface when separator pressure decreases, or because of the surface tension, viscosity, and some impurities, because of that, small droplets are generated, these droplets are covered with oil, this happens when gas is liberated. in general; the quick motion inside the separator will cause foaming, this foam will cover the fluid surface and prevent gas from escaping, foam also reduces gas space inside the separator, and can pass the demister and escape to the gas outlet in the form of…

  • pipe corrosion
    Petroleum - English

    How Corrosion Happens in Oil and Gas Industry

    Internal Corrosion in Oil and Gas Production Facilities  Before talking about corrosion in oil and gas facilities, we have to define some of the main sections of these facilities: Gathering System and Manifolds Unit – Gather the flowlines that convey the liquid and/or gaseous hydrocarbons coming from production wells. – Send the product, by means of block valves and in safety conditions, on the production or test manifold to the treatment Units.     Separation Unit – Separation tests and relevant measures. – Carry out the production tests on the single wells. – Analysis of oil phases, salted water and associated gas, separated under determinate pressure and temperature conditions; –…

  • Oil Gas Separator
    Petroleum - English

    Liquid Carry-over and Gas-blowby in oil gas separators

          when we talk about oil gas separators in the modern designs of GOPS, the designers took into consideration all operation problems, by adding high sensitivity control valves, and accurate pressure and level indicators which decreased these problems to the minimum, most operation problems now are occurring because of bad operation, human mistakes, or any malfunction of these control valves. Carry Over in Oil-Gas Separator:     In simple words Liquid Carry Over means: exit of crude oil droplets with the gas already separated from oil; this will lead to a very black smoke from the flare; and burning the small amounts of oil from time to time, it…

  • H2S
    Petroleum - English

    H2S in Oil Industry

        Introduction This article impacts on human health caused by exposure to hydrogen sulfide (H2S) associated with crude oil and natural gas development. It begins with a brief background on hydrogen sulfide, its presence in oil and natural gas, and possible emission sources from various oil and gas operations. epidemiology, and industrial health publications, as well as of sources from regulatory and environmental agencies, that addresses human health impacts from exposure to H2S. Many recommendations established to protect human health are based on crude exposure estimates or on extrapolation from animal studies. The USA government does not regulate ambient H2S levels, but many states do. Three states conduct routine monitoring of ambient H2S levels, and…

  • sand control
    Petroleum - English

    Sand Control

      Consequences of sand production: • Wellbore fill. • Equipment problems due to sand fill. • Sand erosion of downhole and surface equipment. • Sand accumulation on surface and Sand Disposal. • Production Loss. • Casing / Liner Collapse. Forces Aiding in Resisting Sand Production: • Intergranular frictional forces and bonding (cementing) help resist grain movement • Capillary Pressure adds further grain-to-grain bonding. Forces Contributing to Sand Production: • Pore pressure relieves frictional forces. • Production of wetting phase reduces capillary pressure forces. What causes sand production? • Totally or weakly unconsolidated formations. • Changing stresses in the near wellbore area. • Water Production. Sand Production Mechanism Primer: – Rock shear collapse owing to in situ…

  • Petroleum - English

    Emulsion Treating Part.2

    Emulsion-Treating Methods An emulsion-treating unit or system will use one or more of the methods to aid in destabilizing, coalescence, and/or gravity separation. Each of these treating methods is discussed separately below. Heating. Using heat to treat crude-oil emulsions has four basic benefits: Heat reduces the viscosity of the oil, which allows the water droplets to collide with greater force and to settle more rapidly. Crude-oil viscosities vary widely, and the curves on this chart should be used only in the absence of specific data. If a crude oil’s viscosity is known at two temperatures, it can be approximated at other temperatures by drawing a straight line along those temperature/viscosity points on…