Give the Russian equivalents to the English ones.

State the synonyms to the following terms.

pore space effective porosity primary porosity intergranular

secondary porosity absolute porosity grain size sorting

Translate the following sentences.

1. The material of which a petroleum reservoir rock may be composed of can range from very loose and unconsolidated sand to very hard and dense sandstones.

2. As the sediments were deposited and the rocks were being formed during past geological times, some void spaces that developed became isolated from the other void spaces by excessive cementation.

3. From the reservoir – engineering standpoint, effective porosity is the desired quantitative value because it represents the space that is occupied by mobile fluids.

4. Rock properties are determined by performing laboratory core analysis.

5. Many of the void spaces are interconnected while some of the pore spaces are completely isolated.

Answer the following questions.

1. What is porosity? (definition)

2. What is the average value of porosity?

3. What factors govern the magnitude of porosity?

4. There are two categories of porosity. What are they?

5. What is the difference between effective porosity and total porosity?

6. What is effective porosity?

7. How is effective porosity affected by?

8. What is absolute porosity?

9. Can a rock have considerable absolute porosity, but have no fluid conductivity? Why?

10. What is the geological classification of porosity? (description).

11. What is the difference in translating the following terms:joint, fissure, and fracture?

12. What is the general geological classification of porosity based on?

13. What are the main characteristic features of primary porosity?

14. What is secondary porosity?

15. What are the three groups of secondary porosity? What are these groups based on?

16. In what type of reservoir rock is secondary porosity more important than primary porosity?

17. Can both types of porosity occur in one and the same reservoir rock?

18. What are fluids?

19. What is microporosity?

20. What rocks show little evidence of physical compaction?

21. What are cementing materials?

22. What is cementation?

23. What is the basic mechanism for primary migration of petroleum?

24. What is pore space?

25. What is the porosity of most sedimentary rocks?

26. What is the approximate porosity of a cubic system?

27. What does sorting depend on? (factors).

28. When does cementation take place?

29. What is the porosity of petroleum reservoirs in Tomsk region? (average).

30. What porosity - effective or absolute – is used in reservoir engineering calculations?

Date: 2016-01-14; view: 944