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  1. Waste management - part 2

    ... jobs. At the stage of reservoir stimulation, flowback water recovered from the well is the main waste. Chemical composition of flowback water may vary and is primarily contingent on: the properties of ... between the rock and fluids used, total time of fluid presence in the rock mass. In addition to substances used for ...

    Artykuł - 10/16/2014 - 15:57

  2. Waste Management - Part 3

    ... for drilling wastes and liquid in the case of flowback fluid) is the key problem that makes it difficult to reuse extractive wastes. ...

    Artykuł - 10/16/2014 - 16:00

  3. Waste management – part 1

    ... Group 01 05. These are: cuttings, spent mud, flowback water, reservoir waters, deposits or sludge from flowback ... reactions between the rock and fluids, total time of fluid presence in the rock mass, flowback water volume, approach to ...

    Artykuł - 10/16/2014 - 15:18

  4. Hydraulic Fracturing Recipe

    ... a few or 10+ of them are used in a single fracturing job. Fluid formulations and proportions of components are frequently changed during ... in all sections. Over the next few days a fluid (called flowback water) and gas flow from the well by natural lift. Sometimes it is ...

    Artykuł - 10/18/2014 - 19:17

  5. Shale gas exploration/production and the groundwater

    ... contaminate the aquifers as a result of: drilling fluid or gas migration – in the event of inadequate well construction, ... from site surface (e.g. fracturing fluid spills, leaking flowback water pits), other emergencies (e.g. process fluid spills from ...

    Artykuł - 10/16/2014 - 16:15

  6. Stimulation of oil and gas production

    ... napalm-thickened gasoline was made in Kansas. Fracturing fluid with sand was used two years later. Initially, oil-based fracturing ... well is closed with a high pressure wellhead. Subsequently, flowback water and reservoir fluids are recovered from the well. Fracturing ...

    Artykuł - 12/11/2014 - 19:38

  7. Surface waters and shale gas exploration/production

    ... the ground in immediate proximity of the well, fracturing fluid preparation and injection areas, as well as fuel, chemicals and waste ... the surface waters (e.g. fracturing fluid spills, leaking flowback water pits), fracturing fluid or gas migration – if escape ...

    Artykuł - 10/16/2014 - 15:14

  8. Potential environmental impacts at each stage of works

    ... sequential injections of a highly pressurized process fluid (the so-called fracturing fluid) with proppant (filling medium) into ... procedure is over, a part of the fracturing fluid (flowback water) is recovered at the wellhead and then the gas released from the ...

    Artykuł - 10/16/2014 - 16:50

  9. Water management in shale gas exploration and production

    ... borehole length), hydraulic fracturing – fracturing fluid is based on the water (that accounts for more than 90% of its ... water (approx. 12-30% on average) returns to the surface as flowback fluid. ( www.ngsfacts.org ). For comparison, the volume of ...

    Artykuł - 10/16/2014 - 16:16

  10. Germany to block shale gas exploration?

    ... on the other hand, may be performed if the fracking fluid does not endanger the groundwater. The appropriateness of the legal ban ... strict regulations will apply to the storage of fluids and flowback water. The regulations are to be updated considering the current state ...

    Aktualność - 11/13/2014 - 13:13

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