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  1. Give English equivalents of the following:

розкриття продуктивного пласта, привибійна частина свердловини, метод розкриття., однорідний продуктивний пласт, пластовий тиск, експлуатаційна колона, крівля пласта, газова шапка, стійка порода, прискорені витрати, бідний стовбур.

  1. Make a written translation of the following:

If the pay bed is homogeneous, made up of a strong, competent rock, saturated with a single fluid, and the permeability across the thickness of the bed varies but little, then the well bore opposite such a bed need not be reinforced with a casing. In open holes the casing shoe is placed in the roof (top) of the oil reservoir. With such a casing program of the well the type and properties of the drilling fluid may be chosen by taking account of features specific only for the oil reservoir. In this case it is possible to completely avoid any pollution of the reservoir.

If the pay bed is homogeneous, saturated with but a single fluid, and the permeability across the thickness of the reservoir varies insignificantly, but the reservoir rock is not stable enough, then the well bore opposite such a bed has 1:0 be rainforced and the collecting sands protected against destruction. Then, the production casing is lowered down to the roof of the bed, whereas the: borehole walls amidst the bed itself are reinforced with a special filter, usually suspended in the casing from a packer.

  1. Find in Text 1 conditional sentences and tramslate them.

  2. Supply a heading for Text 1.

  3. Working in pairs test each other's ability tc describe the factors that influence the choice of the openirig-up method of a reservoir.

  4. Write a summary of Text 1.

CONTROL TASKS

1 Answer the questions:

    1. What is the final aim of drilling oil and gas wells?

    2. How great may the radius of the filtrate penetration into the pay bed be?

    3. When does it become impossible to complete a well?

    4. What does the high pressure exerted by the column of mud fluid cause in the course of drilling?

    5. What factors does the influence exercised by the mud fluid on the pay bed rock depend on?

    6. What does the pollution of the productive sand around the well- bore zone affect?

    7. What should be compared in selecting a mud fluid for drilling over a pay bed?

    8. What are the best oil-base muds to drill in producing horizons with an abnormality factor?

    9. What is the opening-up of a reservoir?

    10. What operations does the technology of advancing horizontal or nearly horizontal side holes involve?

2 Give English equivalents of the following:

експлуатаційна свердловина

притік рідини

розкриття пласта

енергія пласта

тривалість освоєння

перепад тиску

свердловини

продуктивний пласт

висхідна швидкість

газова шапка

стійка порода

крівля пласта

фрезерувати

газосховище

пластовий тиск

вібровплив

привибійна зона

вибійна зона

забивати пори

гідророзрив

випадання в осад

обробка кислотою

поперечний переріз

щілина

забруднювати

експлуатаційна колона

І використання ПАР

насиченість

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