Wireline cycle life counter
First Claim
1. Apparatus including a wireline monitor/controller for monitoring and controlling a wireline unit including a wireline connected to the wireline unit, the wireline having an upper end, a lower end, a rated weight, and having a wireline tool attached to its lower end, the wireline being run down a well bore during a wireline job, the well bore having an upper end, the monitor/controller comprising:
- (a) first alarm means for giving an alarm at a predetermined percentage of cycle life of the wireline;
(b) display means to give a reading of the percentage of cycle life at any point on the wire;
(c) second alarm means for indicating when the weight on the wire exceeds the rated weight of the wire;
(d) logging means for logging well head pressure in the well bore;
(e) monitoring means for monitoring the location of the lower end of the wireline to prevent a blow-out-preventer valve from closing and cutting the wireline and to prevent a wireline tool from being pulled off of the lower end of the wireline when the lower end of the wireline reaches the upper end of the well bore;
(f) velocity monitoring means for monitoring the velocity of the wireline; and
(g) shut-down means for shutting down the wireline unit in response to any of the measurements which the monitor/controller makes.
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Accused Products
Abstract
A wireline monitor performs the following tasks:
it gives an alarm at a predetermined percentage of cycle life and can give a reading of the percentage of cycle life at any point on the wire;
an alarm sounds when the weight on the wire exceeds the rated weight;
it logs well head pressure;
it monitors the location of the end of the wireline to prevent a blow-out-preventer (b.o.p.) valve from closing and cutting the wireline and to prevent the wireline from being pulled off of a wireline tool when it reaches the top of the hole; and
it can shut down the wireline unit in response to any of the measurements which it is making.
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Citations
17 Claims
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1. Apparatus including a wireline monitor/controller for monitoring and controlling a wireline unit including a wireline connected to the wireline unit, the wireline having an upper end, a lower end, a rated weight, and having a wireline tool attached to its lower end, the wireline being run down a well bore during a wireline job, the well bore having an upper end, the monitor/controller comprising:
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(a) first alarm means for giving an alarm at a predetermined percentage of cycle life of the wireline; (b) display means to give a reading of the percentage of cycle life at any point on the wire; (c) second alarm means for indicating when the weight on the wire exceeds the rated weight of the wire; (d) logging means for logging well head pressure in the well bore; (e) monitoring means for monitoring the location of the lower end of the wireline to prevent a blow-out-preventer valve from closing and cutting the wireline and to prevent a wireline tool from being pulled off of the lower end of the wireline when the lower end of the wireline reaches the upper end of the well bore; (f) velocity monitoring means for monitoring the velocity of the wireline; and (g) shut-down means for shutting down the wireline unit in response to any of the measurements which the monitor/controller makes. - View Dependent Claims (2)
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3. Apparatus including a wireline monitor/controller for monitoring and controlling a wireline unit including a wireline connected to the wireline unit, the wireline having an upper end, a lower end, a rated weight, and having a wireline tool attached to its lower end, the wireline being run down a well bore during a wireline job, the well bore having an upper end,
(a) the monitor/controller comprising: -
a monitor for monitoring the location of the lower end of the wireline to prevent a blow-out-preventer valve from closing and cutting the wireline and to prevent a wireline tool from being pulled off of the lower end of the wireline when the lower end of the wireline reaches the upper end of the well bore; (b) the apparatus further comprising first alarm means for giving an alarm at a predetermined percentage of cycle life of the wireline. - View Dependent Claims (4, 5, 6, 7, 8, 9)
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10. Apparatus including a wireline monitor/controller for monitoring and controlling a wireline unit including a wireline connected to the wireline unit, the wireline having an upper end, a lower end, a rated weight, and having a wireline tool attached to its lower end, the wireline being run down a well bore during a wireline job, the well bore having an upper end, the monitor/controller comprising:
alarm means for indicating when the weight on the wire exceeds the rated weight of the wire. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
Specification