Multi-point injection system for oilfield operations
First Claim
1. A system for injecting an injection fluid in a well, comprising:
- a production tubing disposed in the well configured to receive production fluids;
an umbilical disposed in the well, the umbilical being configured to convey the injection fluid from a surface location into the well;
a plurality of nozzles configured to receive the injection fluid from the same umbilical and inject the injection fluid into the production fluids received by the production tubing; and
a plurality of flow restriction elements, each flow restriction element being associated with a nozzle of the plurality of nozzles, each flow restriction element being configured to control a flow of the injection fluid through the associated nozzle.
1 Assignment
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Accused Products
Abstract
A system monitors and controls the injection of additives into formation fluids recovered through a well may include a plurality of nozzles that receive the injection fluid from an umbilical disposed in a well. Each nozzle may have an associated flow control element that is configured to affect a flow of the injection fluid ejected through the associated nozzle. The umbilical may include one or more filters positioned in a first of two parallel conduits formed along the umbilical. An occlusion member restricts in a second of the two conduits. The occlusion member permits flow in the second conduit after a predetermined pressure differential exists in the second conduit. The system may include a plurality of pressure sensors disposed along the umbilical, and an injector unit that dispenses fluid into the umbilical. A controller operatively coupled to the injector unit operates the injector in response to measurements from the pressure sensors.
78 Citations
18 Claims
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1. A system for injecting an injection fluid in a well, comprising:
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a production tubing disposed in the well configured to receive production fluids; an umbilical disposed in the well, the umbilical being configured to convey the injection fluid from a surface location into the well; a plurality of nozzles configured to receive the injection fluid from the same umbilical and inject the injection fluid into the production fluids received by the production tubing; and a plurality of flow restriction elements, each flow restriction element being associated with a nozzle of the plurality of nozzles, each flow restriction element being configured to control a flow of the injection fluid through the associated nozzle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for injecting an injection fluid in a well, comprising:
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conveying the injection fluid from the surface into the well using an umbilical; conveying a production fluid out of the well using a production tubing; ejecting the injection fluid into production fluid in the well using a plurality of nozzles that receives the injection fluid from the same umbilical; and controlling the flow of the injection fluid through each nozzle using a plurality of flow restriction elements, each flow restriction element being associated with a nozzle of the plurality of nozzles. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification