Mock Test-Well Intervention (Completion Equipment)

MOCK TEST PAPER

COMPLETION EQUIPMENTSTime: 30 minutes

1. Given the drawing above, match the correct numbers to their descriptions.

LMV FWV

UMV KWV

SSV Cross

Tree cap Swab valve

Adaptor flange Choke

2. Which of the following statements about X-mas tree valves are true?(2 answers)a. After closing, a manual valve should be backed out by part of a turnb. The valve must be closed as tightly as possiblec. All valves take 30 turns to open or closed. The indicator shows how many turns have been madee. Counting the turns as the valve is opened or closed can show any obstructions in

front of the valve

3. Which of the following statements about X-mas trees is true?a. Any swab valve can be used to cut slicklineb. Some master valves can be used to cut slicklinec. Any flow wing valve can be used to cut slicklined. Any kill wing valve can be used to cut slickline

4. Which of the following statements about tubing hangers are true?(3 answers)a. A plug can usually be set inside the hanger bodyb. It supports the weight of the production casing and completionc. It supports the weight of the top of completiond. It allows communication from inside the completion to the completion annulus

through the control line port(s)e. It allows communication into the completion annulus through the control line

port(s)f. It isolates the completion from the completion annulusg. It can be closed by applying pressure to the control line

5. What is the primary purpose of a packer?a. To support the tubingb. To anchor the tubingc. To isolate the completion annulusd. To hold the completion fluid in the annulus

6. How does a packer create the annulus / tubing seal?a. By sealing off the tubing in the packer boreb. By isolating the annulus above the packer from the casing below the packer and

the tubingc. By being located in a tieback receptacled. By hydraulic control from surface

7. Name the two basic types of packer (2 answers)?a. Bridge plugb. Permanentc. Pump Throughd. Retrievablee. Check valve

8. Where is a production packer normally positioned in a well?a. Close to the tubing hangerb. Half way between the tubing hanger and the perforationsc. Above the top of perforationsd. Below the bottom of perforations

9. Which of the following is true about a retrievable packer?a. Can be retrieved by millingb. Can only be retrieved with the completion tubingc. Can be set and retrieved by wirelined. Is fixed to the completion tubinge. Can only be retrieved with a special pulling tool

10. Which of the following is true about a permanent packer?a. Can be retrieved by millingb. Can only be retrieved with the completion tubingc. Can be set and retrieved by wirelined. Is fixed to the completion tubinge. Can only be retrieved with a special pulling tool

11. What is the primary purpose of a sliding sleeve?a. To close off the tubing boreb. To close off the annulusc. To provide communication between the tubing and annulus

12. Where is the sliding sleeve normally positioned?a. Immediately above the packerb. Immediately below the packerc. Between the two packers

13. Which of the following statements are true (2 answers)?a. Check that the pressure rating of the SSD is correctb. Check that the SSD is fully open before starting circulationc. Check that the tail pipe is plugged before opening the SSDd. Check that the pressures are equalised across the SSD before openinge. Check that the catcher is in place below the SSD before opening

14. How can circulation be established if the SSD is stuck in the closed position?a. Unseat the packerb. Connect the annulus and tubing at surfacec. Punch a hole in the tubingd. Pull the DHSV from its nipple

15. Which of the following are true? (2 answers)a. The SPM plugs the tubingb. The SPM is the receptacle for the DHSVc. The SPM is the receptacle for gas lift valvesd. The SPM is the receptacle for downhole plugse. The SPM can provide a means of communication between annulus and tubing

16. What stops wellbore fluids entering the annulus through a gas lift valve in an SPM?a. Differential Pressureb. A check valve in the gas lift valvec. The venture effect across the port of the gas lift valve

17. If a SPM is not in use as a circulating device, what type of valve is installed in the side pocket as a positive closure from either direction?a. A gas lift valveb. A gate valvec. A dummy valved. A chemical injection valvee. A circulating valve

18. Why is a DHSV used?a. To close in the well to allow maintenance on the treeb. To close in the well to shut in productionc. To control production ratesd. To prevent production in case the surface valves are opened too fare. To close in the well in an emergency

19. Why is an annulus safety valve installed?a. In place of the tubing safety valveb. To prevent flow from the annulus in gas lift wellsc. To close off flow onto the annulus in gas lift wells

20. What is the primary reason that determines the setting depth of the DHSV?a. To prevent deliberate sabotageb. Is set as high as possible to reduce the inventory of wellbore fluids that might

escapec. Is set below the depth where it can be damaged by surface impact or explosiond. Is set below the crater depth from a blow out around the casinge. Is set as close to the packer as possiblef. To prevent penetration of drilling tools from an adjacent well

21. From which direction does a DHSV prevent flow?a. Aboveb. Belowc. Above and Below

22. What is the main reason for using tubing nipples?a. To receive flow control devicesb. To reduce well flowc. For wireline depth control

23. How are lock mandrels locked into nipples?a. With slipsb. On No-Go shouldersc. With mandrel locking dogs in matching profilesd. With expanding rubber elements in the boree. With elastomeric packings in the boref. By metal to metal seals

24. How do flow control devices seal within the nipple bore?a. With slipsb. On No-Go shouldersc. With locking dogs in matching profilesd. With expanding rubber elements in the boree. With elastomeric packings in the boref. By metal to metal seals

25. What is the primary purpose of No-Go shoulders in nipples?a. To locate the correct lock mandrelb. To prevent the tools falling out of the bottom of the tubingc. To bear the load from the differential pressure across the plugd. To lock the mandrel into the nipple

26. Do DHSV’s prevent flow in both directions?a. Yesb. No

27. Which are the common types of DHSV?(2 answers)a. Coiled Tubing retrievableb. Wireline retrievablec. Tubing retrievabled. Permanente. Temporary

28. What type of closure mechanism is fitted to surface controlled wireline retrievable DHSV’s?(2 answers)a. Poppetb. Flapperc. Plugd. Balle. Sleevef. Gate

29. Which of the following DHSV’s are surface controlled?(2 answers)a. Differential pressureb. Ambient pressurec. Wireline retrievabled. Tubing retrievablee. Ballf. Flapperg. Automatic

30. What type of closure mechanism is fitted to tubing retreivalbe DHSV’s? (2 answers)a. Poppetb. Flapperc. Plugd. Balle. Sleevef. Gate

31. Which of the following DHSV’s are sub-surface controlled?(2 answers)a. Differential pressureb. Ambient pressureh. Wireline retrievablei. Tubing retrievablej. Ballk. Flapperc. Automatic

32. Which DHSV has the largest ID for the same tubing size?a. Wireline retrievableb. Ambient pressurec. Tubing retrievabled. Differential pressure

33. What is the correct action to take to re-instate production in a well with a failed tubing retrievable DHSV?a. Workover the wellb. Lock open the DHSVc. Lock open the DHSV and install an insert valve

34. How is a tubing retrievable DHSV run in the open position?(2 answers)a. With pressure on the control lineb. By using the lock open mechanismc. With a straddle set across the valved. By keeping the tubing pressurised

35. What is the main advantage of using wireline retrievable DHSV’s?a. Simple constructionb. Can be installed after running the completionc. Can be removed to allow intervention workd. Can be retrieved and replaced

36. What causes a sub-surface controlled DHSV to close?a. Temperatureb. Pressurec. Fluid densityd. Coiled tubinge. Wireline

37. How is a surface controlled wireline retrievable DHSV run in the open position?a. With locked in hydraulic pressureb. With a lock open sleevec. With a prong on the wireline running toold. With an automatic ‘J’ device

38. How is the hydraulic communication achieved in a surface controlled wireline retrievable DHSV?a. Through the hydraulic stabb. Through the open sliding sleevec. Between the two packing stacks

39. How is a sub-surface controlled DHSV re-opened?a. By allowing ambient temperature to return to normalb. By running the opening toolc. By opening up the welld. By pressurising up above the valvee. By pulling and redressing the valve

40. How is temporary communication normally made between the tubing and annulus?(2 answers)a. Open the SSDb. Punch a hole in the tubingc. Connect the tubing and annulus in the surfaced. Install a circulating valve in the SPM

41. How are sub-surface controlled DHSV’s operated?(2 answers)a. By differential pressureb. By ambient pressurec. By hydraulic pressured. By a rise in the temperature of the wellbore fluidse. By a fall in the temperature of the wellbore fluids