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TrippingUseCases

Timestamp:: 01/20/09 12:27:24 (15 years ago)
Author:: robertewald (IP: 85.19.67.218)
Comment:: --

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IOHN/AutoConRig/TrippingUseCases

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129	46	a. If pump pressure stabilized:
130		i. ~~Circulate with an appropriate mud if the existing one does not do the job (requires automation in mud mixing).~~ Increase the flow rate to the recommended flow rate.
	47	i. Increase the flow rate to the recommended flow rate.
131	48	i. Continuously move the drill-string, within the distance from bottom hole.
132	49	i. Detect better hole condition
…	…
160	77	start [label="Manual\nTrip-in", fillcolor=grey90, fontcolor=black]
161	78	powerloss [label="PowerLoss"];
162		aboveshoe [label="Drillbit is above\ncasing shoe"];
163		slightbelowshoe [label="Drillbit is less\nthan one stand\nbelow casing shoe"];
164		deepinopenhole [label="Drillbit is more\nthan one stand\nabove bottom hole"];
165		atbottom [label="Drillbit is less\nthan one stand\nfrom bottom hole"];
166		packoffdetect [label="Pack-off detected"];
	79	aboveshoe [label="Drillbit is above\ncasing shoe", shape=diamond];
	80	slightbelowshoe [label="Drillbit is less\nthan one stand\nbelow casing shoe", shape=diamond];
	81	deepinopenhole [label="Drillbit is more\nthan one stand\nabove bottom hole", shape=diamond];
	82	atbottom [label="Drillbit is less\nthan one stand\nfrom bottom hole", shape=diamond];
	83	packoffdetect [label="Pack-off detected", shape=diamond];
167	84	updown [label="continuously move\nstand up\nand down"]
168	85	stop [label="reduce speed to\n zero following\na curve"]
…	…
198	115	updown -> mudpump-> "pump as per\ncurve"
199	116	}
200		packoffdetect -> pressure -> "increase mud flow\nrate" -> holeclean;
201		pressure -> "stop pump (curve)" -> "Stuck pipe"
	117	packoffdetect -> "pump mud" -> pressure;
	118	pressure -> "increase mud flow\nrate" [label="yes"];
	119	"increase mud flow\nrate" -> holeclean ;
	120	pressure -> "stop pump (curve)" [label="no"];
	121	"stop pump (curve)"-> "Stuck pipe"
202	122	holeclean -> pullout;
203	123	updown -> largekick -> "Activate BOP";
204		updown -> "small kick detected" -> updown;
	124	updown -> "small kick detected" -> updown
	125	subgraph cluster_2 {
	126	poweron;
	127	"Activate BOP";
	128	"Stuck pipe";
	129	}
205	130	}
206	131	}}}