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US 12,000,239 B2Granted
Modular additive cementing
AssigneeSaudi Arabian Oil Company
InventorsCarl D. Lindahl, Bandar S. Malki
Life of this patent
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Abstract
An apparatus for flowing and mixing cement within a subterranean formation includes a housing, a flow control device, and baffles. The housing is configured to contain a cement additive. The housing includes a first end and a second end. The first end is configured to couple to a cement retainer. The flow control device is disposed at the second end of the housing. The baffles are disposed within the housing.
Claims13
An apparatus for flowing and mixing cement within a subterranean formation, the apparatus comprising:
- a housing configured to contain a cement additive, the housing comprising:
- a first end configured to couple to a cement retainer;
- a second end opposite the first end;
- a wall connecting the first end to the second end;
- a first port disposed at the first end of the housing, the first port configured to couple to the cement retainer;
- a second port disposed at the second end of the housing;
- and
- a pressure injection port disposed at the wall of the housing;
- a flow control device selected from the group consisting of a rupture disc and a float valve, the flow control device disposed at the second end of the housing;
- and
- a plurality of baffles disposed within the housing, wherein each of the plurality of baffles are coupled to and protrude from an inner surface of the wall of the housing.
8 more elements
A system comprising:
- a cement retainer;
- and
- an apparatus comprising:
- a housing configured to be positioned downhole, the housing containing a cement additive, the housing comprising:
- a first end coupled to the cement retainer;
- a second end opposite the first end;
- and
- a wall connecting the first end to the second end;
- a flow control device selected from the group consisting of a rupture disc and a float valve, the flow control device disposed at the second end of the housing, the flow control device configured to prevent fluid flow out of the housing through the flow control device up to a first pressure threshold value;
- a rupture disc disposed at the wall of the housing, the rupture disc configured to prevent fluid flow out of the housing through the rupture disc up to a second pressure threshold value, the rupture disc configured to rupture in response to being exposed to a pressure equal to or greater than the second pressure threshold value, thereby allowing fluid flow out of the housing through the ruptured rupture disc;
- and
- a plurality of baffles disposed within the housing, wherein each of the plurality of baffles are coupled to and protrude from an inner surface of the wall of the housing.
9 more elements
Dependencies are inferred from the claim text.