SLB Tools Golden Rules

10 Golden Rules for setting Down Hole Tools

Schlumberger Private

10 Golden Rules

for setting

Down Hole Tools



1-Job Preparation Find out Casing Size and weight (Tool Dressing) Depth and Temperature (Rubbers & O-rings) Tubing Size, Weight & Thread type (X-over & Drill

Collars) Type of Job Fishing Diagram Back up (Spare elements, O-rings, Slips, ) Best

is to have a second tool ready to go Function Test Pop Joints (Avoid long stick ups) Physical Check (X-over) Scraper run, Perforations blur will damage the

elements



2- Never hang a String with a loose connection

Specially while hanging a heavy string down-hole (Hurricane/ DLT jobs)



3- Minimum Left Hand Turns Never exceed 3 left hand turns While unlatching RBP start with 1 turn and

proceed with 1/4 turns If failed after 3 left hand turns do 5 right hand

turns and repeat Exception: Storm Valve



4- Surface Handling Never put slips around packer body Connect a 5 Pop Joint on top of the tool



5- Signals At The Tool Signals at surface may differ from signals the

tool receives down-hole Send Big Signals specially in deep/ deviated

wells To make sure Positrieve safety position pick

up as much as derrick lets



6- Up Weight & Down Weight Record and mark up weight and down weight

of the string and the distance between them before trying to set the tool



7- Dont Rely On Your Memory Write down all steps of the job in a tally book

and take it during the job Mark setting depth and other important points

on the tubing record all job data



8- Have Your Eyes On the Weight Indicator

M/D is the only indicator in setting a tool Notice and record all changes on M/D during

the job



9- Tight Top To Down Tightening a connection on the rig floor may

unscrew upper connections While tightening a string mark and have your

eyes on upper joints



10- Let the elements relax As soon as the tool is unset before pulling up

let the rubber elements relax for 5 to 10 minutes.

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SLB Tools Golden Rules