Gradational insertion of an artificial lift system into a live wellbore
First Claim
Patent Images
1. A method of inserting a downhole assembly into a live wellbore, comprising:
- assembling a pressure control assembly (PCA) onto a production tree of the live wellbore;
inserting a first deployment section of the downhole assembly into a lubricator;
landing the lubricator onto the PCA;
connecting the lubricator to the PCA;
lowering the first deployment section into the PCA;
engaging a clamp of the PCA with the first deployment section;
after engaging the clamp, closing an isolation valve of the PCA, thereby isolating an upper portion of the PCA from a lower portion of the PCA;
after isolating the PCA, removing the lubricator from the PGA;
connecting a second deployment section to the first deployment section;
connecting a third deployment section to the second deployment section;
inserting a fourth deployment section of the downhole assembly into the lubricator;
landing the lubricator onto the PCA;
connecting the lubricator to the PCA;
opening the isolation valve of the PCA;
lowering the fourth deployment section into the PCA to a position adjacent a top of the third deployment section; and
while the lubricator is connected to the PCA;
orienting a lower flange of the fourth deployment section with an upper flange of the third deployment section to align threaded fasteners of the upper flange with threaded sockets of the lower flange;
rotating the oriented third and fourth deployment sections to align one of the threaded fasteners with a wrench of the PCA;
engaging the wrench with the aligned threaded fastener and operating the wrench to screw the threaded fastener into the threaded socket;
disengaging the wrench from the threaded fastener;
incrementally rotating the third and fourth deployment sections to align another one of the threaded fasteners with the wrench; and
repeating the engaging, disengaging, and incrementally rotating steps until the flanged connection between the third and fourth deployment sections is assembled.
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Abstract
A method of inserting a downhole assembly into a live wellbore, includes: assembling a pressure control assembly (PCA) onto a production tree of the live wellbore; inserting a first deployment section of the downhole assembly into a lubricator; landing the lubricator onto the PCA; connecting the lubricator to the PCA; lowering the first deployment section into the PCA; engaging a clamp of the PCA with the first deployment section; after engaging the clamp, isolating an upper portion of the PCA from a lower portion of the PCA; and after isolating the PCA, removing the lubricator from the PCA.
32 Citations
10 Claims
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1. A method of inserting a downhole assembly into a live wellbore, comprising:
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assembling a pressure control assembly (PCA) onto a production tree of the live wellbore; inserting a first deployment section of the downhole assembly into a lubricator; landing the lubricator onto the PCA; connecting the lubricator to the PCA; lowering the first deployment section into the PCA; engaging a clamp of the PCA with the first deployment section; after engaging the clamp, closing an isolation valve of the PCA, thereby isolating an upper portion of the PCA from a lower portion of the PCA; after isolating the PCA, removing the lubricator from the PGA; connecting a second deployment section to the first deployment section; connecting a third deployment section to the second deployment section; inserting a fourth deployment section of the downhole assembly into the lubricator; landing the lubricator onto the PCA; connecting the lubricator to the PCA; opening the isolation valve of the PCA; lowering the fourth deployment section into the PCA to a position adjacent a top of the third deployment section; and while the lubricator is connected to the PCA; orienting a lower flange of the fourth deployment section with an upper flange of the third deployment section to align threaded fasteners of the upper flange with threaded sockets of the lower flange; rotating the oriented third and fourth deployment sections to align one of the threaded fasteners with a wrench of the PCA; engaging the wrench with the aligned threaded fastener and operating the wrench to screw the threaded fastener into the threaded socket; disengaging the wrench from the threaded fastener; incrementally rotating the third and fourth deployment sections to align another one of the threaded fasteners with the wrench; and repeating the engaging, disengaging, and incrementally rotating steps until the flanged connection between the third and fourth deployment sections is assembled. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of inserting a downhole assembly into a live wellbore, comprising:
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assembling a pressure control assembly (PCA) onto a production tree of the live wellbore; inserting a first deployment section of the downhole assembly into a lubricator; landing the lubricator onto the PCA; connecting the lubricator to the PCA; lowering the first deployment section into the PCA; engaging a clamp of the PCA with the first deployment section; after engaging the clamp, closing an isolation valve of the PCA, thereby isolating an upper portion of the PCA from a lower portion of the PCA; after isolating the PCA, removing the lubricator from the PCA; inserting a second deployment section of the downhole assembly into the lubricator; landing the lubricator onto the PCA; connecting the lubricator to the PCA; opening the isolation valve; lowering the second deployment section into the PCA to a position adjacent a top of the first deployment section; and while the lubricator is connected to the PCA and the clamp is engaged with the second deployment section; orienting a lower flange of the second deployment section with an upper flange of the first deployment section to align threaded fasteners of the upper flange with threaded sockets of the lower flange; rotating the oriented first and second deployment sections to align one of the threaded fasteners with a wrench of the PCA; engaging the wrench with the aligned threaded fastener and operating the wrench to screw the threaded fastener into the threaded socket; disengaging the wrench from the threaded fastener; incrementally rotating the first and second deployment sections to align another one of the threaded fasteners with the wrench; and repeating the engaging, disengaging, and incrementally rotating steps until the flanged connection between the first and second deployment sections is assembled.
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10. system for inserting a downhole assembly into a live wellbore, comprising:
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a pressure control assembly, comprising; a first clamp comprising a housing having a bore therethrough and bands or slips, each band or slip radially movable relative to the first clamp housing into and from the first clamp bore; a second clamp comprising a housing having a bore therethrough and bands or slips, each second band or slip radially movable relative to the second clamp housing into and from the second clamp bore; a preventer or packer comprising a housing having a bore therethrough, a seal, and an actuator operable to extend and retract the seal into and from the preventer or packer housing bore; an isolation valve comprising a housing having a bore therethrough and a valve member operable to open and close the valve bore; and a driver comprising a housing having a bore therethrough and a wrench radially movable relative to the housing into and from the driver bore, the wrench comprising a motor and a socket, the socket operable to engage a threaded fastener and the motor operable to rotate the socket, wherein the clamp housings, the preventer or packer housing, the valve housing, and the driver housing are connected to form a continuous bore through the assembly; a flanged connection comprising; a lower flange for connection to a first deployment section of the downhole assembly; and an upper flange for connection to a second deployment section of the downhole assembly, wherein; each flange has a portion of an auto-orienting profile, the upper flange carries a plurality of the threaded fasteners trapped thereto, and the lower flange has a plurality of threaded sockets for receiving the threaded fasteners; and a running tool having a cablehead for connection to a wireline and operable to incrementally rotate the deployment sections for aligning the threaded fasteners with the wrench.
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Specification