Apparatus and method for recovering fluids from a well and/or injecting fluids into a well
First Claim
1. A method of injecting fluids into a well having a mandrel with a production bore, the mandrel having a branch that extends to an export line and a choke body disposed on the branch, the method comprising diverting fluids from the export line to a first flowpath extending through the choke body and diverting the fluids from the first flowpath to a second flowpath communicating with the production bore.
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Accused Products
Abstract
Methods and apparatus for diverting fluids either into or from a well are described. Some embodiments include a diverter conduit that is located in a bore of a tree. The invention relates especially but not exclusively to a diverter assembly connected to a wing branch of a tree. Some embodiments allow diversion of fluids out of a tree to a subsea processing apparatus followed by the return of at least some of these fluids to the tree for recovery. Alternative embodiments provide only one flowpath and do not include the return of any fluids to the tree. Some embodiments can be retrofitted to existing trees, which can allow the performance of a new function without having to replacing the tree. Multiple diverter assembly embodiments are also described.
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Citations
14 Claims
- 1. A method of injecting fluids into a well having a mandrel with a production bore, the mandrel having a branch that extends to an export line and a choke body disposed on the branch, the method comprising diverting fluids from the export line to a first flowpath extending through the choke body and diverting the fluids from the first flowpath to a second flowpath communicating with the production bore.
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3. A method of recovery of fluids from, and injection of fluids into, a well having a manifold with a production bore and an annulus bore, the mandrel having a branch that has a choke body disposed thereon;
- wherein at least one of the steps of recovery and injection includes diverting fluids from the production bore through a first flowpath extending through the choke body to a second flowpath and diverting the fluids from the second flowpath to the annulus bore.
- View Dependent Claims (4, 5, 6)
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7. A method of recovery of fluids from, and injection of fluids into, a well having a manifold;
- wherein at least one of the steps of recovery and injection includes diverting fluids from a first portion of a first flowpath to a second flowpath and diverting the fluids from the second flowpath to a second portion of the first flowpath, wherein the manifold comprises a tree, wherein a hydrocarbon component of the recovered fluids is returned to the tree and is recovered from an outlet of the tree.
- 8. A method of recovering fluids from a first well and re-injecting at least some of the recovered fluids into a second well, wherein the method comprises diverting fluids from a first choke body of a first diverter assembly of the first well to a first flowpath, and diverting at least some of the fluids from the first flowpath to a second flowpath communicating with a second choke body of a second diverter assembly of the second well.
- 11. A method of recovering fluids from a first well and re-injecting at least some of these recovered fluids into a second well, wherein the method comprises diverting fluids from a first portion of a first flowpath to a second flowpath, and diverting at least some of the fluids from the second flowpath to a second portion of the first flowpath, wherein the fluids are recovered from the first well via a first diverter assembly, and wherein the fluids are re-injected into the second well via a second diverter assembly, the method further including returning a portion of the recovered fluids to the first diverter assembly and thereafter recovering that portion of the recovered fluids via the first diverter assembly.
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13. A method of injecting fluids into a well, the method comprising diverting fluids from a first portion of a first flowpath to a second flowpath and diverting the fluids from the second flowpath into a second portion of the first flowpath wherein diverting fluids comprises flowing fluids to and from a processing loop in opposite directions through a central passage and an annular passage coaxial with the central passage.
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14. A method of recovery of fluids from, and injection of fluids into, a well having a manifold;
- wherein at least one of the steps of recovery and injection includes diverting fluids from a first portion of a first flowpath to a second flowpath and diverting the fluids from the second flowpath to a second portion of the first flowpath, wherein diverting fluids comprises flowing fluids to and from a processing loop in opposite directions through a central passage and an annular passage coaxial with the central passage.
Specification