Multi-stage perforating
AssigneeSaudi Arabian Oil Company
InventorSameeh Issa Batarseh
Life of this patent
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Abstract
Systems and methods for forming perforations in a wellbore include: a laser source operable to generate a laser beam; a perforating gun with shaped charges of at least two different sizes, the perforating gun controllably rotatable relative to the wellbore when deployed; and a cable extending between the laser source and the perforating gun, the cable including at least one fiber optic cable to carry the laser beam from the laser source to the perforating gun.
Claims19
A system for forming perforations in a wellbore, the system comprising:
- a laser source operable to generate a laser beam;
- a perforating gun controllably rotatable relative to the wellbore when deployed, the perforating gun comprising stacked arrays of shaped charges, each array of stacked charges comprising at least four different sizes shaped charges;
- and
- a cable extending between the laser source and the perforating gun, the cable including at least one fiber optic cable to carry the laser beam from the laser source to the perforating gun.
A system for forming perforations in a wellbore, the system comprising:
- a laser source operable to generate a laser beam;
- a perforating gun with shaped charges of at least two different sizes, the perforating gun controllably rotatable relative to the wellbore when deployed;
- and
- a cable extending between the laser source and the perforating gun, the cable including at least one fiber optic cable to carry the laser beam from the laser source to the perforating gun;
- wherein each shaped charge comprises an explosive and a material that heats up to at least 888° C. within 3 seconds when contacted with a laser beam.
A method of forming perforations in a wellbore in a subsurface formation, the method comprising:
- running a perforating gun into the wellbore;
- operating a laser source to discharge a laser beam to the perforating gun to trigger a first shaped charge of the perforating gun to form a hole extending into the subsurface formation;
- rotating the perforating gun in the wellbore to orient a second shaped charge of the perforating gun with the hole extending into the subsurface formation;
- and
- operating the laser source to discharge a laser beam to the perforating gun to trigger a second shaped charge of the perforating gun to extend the hole extending into the subsurface formation.
Dependencies are inferred from the claim text.