257611122-Standard-TLC-Procedure.pdf

Schlumberger

TLC Requirements

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Well: A18-08

Rig: ABAN-6

Date: 22-Aug-2011

Schlumberger Public

To: Company-Man / Tool Pusher Subject: TLC Requirements

Please note that the following is required for the upcoming TLC logging program:


Make up all required pipe needed for the job before Schlumberger rig-up.




No jars and drill collars are to be used. Make sure the X-Overs ID is correct and no internal shoulder (smooth). All X-overs between SLB equipment and rig equipment (pipes, etc...) should be provided by the client. DWCH connection is 3.5”IF BOX, CSES is 4.5”IF PIN x 4.5”IF BOX




Drift (rabbit) all pipe to a minimum of 2.4in and as close as possible to the drift ID of the DP.




A complete and accurate pipe tally will be required before the logging.




Pipe must not be rotated. (Tighten Tighten pipes using pipe tongs/iron roughneck) roughneck & rotary table should be locked.




Minimal amount of pipe dope on the pin of the DP only while RIH.




RIH speed is 3.0 minutes per stand, slip to slip. slip




The maximum flow rate for circulation on an open (unlatched) DWCH is 500gpm and it is 300gpm for a latched PWCH and DWCH. These rates should never be exceeded as the tool may be damaged if higher rates are used




Break circulation (with screen/strainer) every 10 stands, 15mins after returns are seen.




Inform SLB of any kicks in pressure. Circulate bottoms up when arriving at the latch depth.




Latch depth needs to be determined before RIH, we will stop when the bottom of the tool is at this point to RIH the PWCH

NOTE: Anything dropping into the pipe (rags / rabbit / rope of rabbit / etc.) will result in complete P.O.O.H and may damage the DWCH and the down-hole latch. Please notify Co-man or SLB engineer if this happens.


During Wireline rig up, upper sheave wheel must be rigged up with the SLB fishing sling on the derrick crossbeam




While RIH PWCH for latching, maintain proper pressure/flow rate as directed by Engineer/TLC specialist. CSES is made up during this time with a make-up torque of 9000ft.lbs.




At about 200 m from latch point, the mud pump is stopped and cable tension is measured. The pump is then restarted and the cable is run in for latch with pump rates advised by Engineer/TLC specialist.




Once latch is confirmed, slowly decrease the mud pump until “0” while SLB engineer checks the latch electrically and performs a tool operational check.

Schlumberger

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The CSES cable clamp is installed and pull tested to 3000lbs for 2 minutes once operational check is completed. THE RIG FLOOR MUST BE CLEARED FOR THIS TEST. TEST

Schlumberger Public




TLC Requirements


Align rotary bushings to prevent cable from being wedged between the bushings. Snatch pulley will be installed at this point to keep the cable away from traveling block & drill pipes.


Agree on a depth reference with the Driller and RIH from this point. Downhole compression/tension of Schlumberger tools will be monitored by SLB Engineer.




When connecting/disconnecting the drill pipes, make sure the logging cable is not crushed between the drill pipe and the slips. Cable should seat in the groove of the slips.




String needs to be filled after latching and during logging to avoid possible unlatching.(only topping off – every 5 stands)




The logging speed will be communicated to the driller real time using intercom/walkie talkie.




TD should never be tagged; we’ll stop approx. 10 meters above TD. TD




After finishing the log, PWCH will be unlatched and cable will be removed.




Pull out speed is 1 min. per stand once wireline cable & CSES is removed from the drill string.




In the case where no 3.5in DP is used in the string, 1 joint of 3.5in IF DP with minimum ID > 2.4in should be provided by client to be connected directly above SLB logging tools




Should there be a need for Wiper Trips, ensure ditch magnet is used in flow-line to clear metal debris from hole (Debris in hole will prevent successful latching)




Mud should be filtered properly from other debris during wiper trip.




If you have any questions/clarifications, please do not hesitate to contact Schlumberger Engineer.

Thank You for Your Cooperation

Schlumberger Engineer:________________________

Company-Man Signature:_______________________

Tool Pusher Signature:__________________________