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US 12,523,126 B2Granted
Regulating detonation of perforation modules in unbalanced conditions
AssigneeSaudi Arabian Oil Company
InventorsAdnan B. Asif, Naresh K. Purusharthy
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Abstract
Systems and methods for perforating wellbores include comparing a signal from the least one pressure sensor with a preset pressure and, in response to determining that the signal from the least one pressure sensor is within a preset pressure range, transmitting the activation signal to a firing head.
Claims9
A bottom hole assembly for perforating wellbores, the bottom hole assembly comprising:
- a perforating tool;
- a control module comprising:
- at least one pressure sensor
- a processor electronically connected to the at least one pressure sensor;
- and
- a transmitter operable to send a signal to the perforating tool;
- wherein in response to an activation signal, the processor is operable to compare a signal from the least one pressure sensor with a preset pressure and, in response to determining that the signal from the least one pressure sensor is within a preset pressure range, transmitting the activation signal to a firing head;
- wherein the processor is operable to disrupt the activation signal if the signal from the least one pressure sensor is less than a safe detonating pressure;
- and
- wherein the safe detonating pressure is reservoir pressure minus a maximum underbalance pressure.
7 more elements
Dependencies are inferred from the claim text.