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US 2019/0093443 A1Published application
Lubricator system and method of use
AssigneeThe Jlar Group, Ltd
InventorsRichard Joel Hogan, Santiago Jaime De Los Santos
Life of this patent
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Abstract
A lubricator system according to which a lubricator defines an internal passage that extends along a curvilinear path. The lubricator is configured to be connected to a wellhead at the top or head of an oil and gas wellbore. A downhole tool is configured to be conveyed through the internal passage of the lubricator and along the curvilinear path in combination with a conveyance string connected to the downhole tool. The downhole tool may be, include, or be part of, for example, a perforating gun.
Claims31
A method, comprising:
- connecting a lubricator to a wellhead at the top or head of an oil and gas wellbore, the lubricator defining an internal passage extending along a curvilinear path;
- and
- conveying, through the internal passage of the lubricator and along the curvilinear path, a downhole tool in combination with a wireline connected to the downhole tool;
- wherein the lubricator includes a downwardly concave section extending along a first curvilinear axis, the downwardly concave section defining a first portion of the internal passage, and the first curvilinear axis at least partially forming or defining the curvilinear path along which the internal passage extends.
1 more element
A method, comprising:
- connecting a lubricator to a wellhead at the top or head of an oil and gas wellbore, the lubricator defining an internal passage extending along a curvilinear path;
- and
- conveying, through the internal passage of the lubricator and along the curvilinear path, a downhole tool in combination with a conveyance string connected to the downhole tool;
- wherein the lubricator includes a downwardly concave section extending along a first curvilinear axis, the downwardly concave section defining a first portion of the internal passage, and the first curvilinear axis at least partially forming or defining the curvilinear path along which the internal passage extends;
- wherein the lubricator further includes an upwardly concave section extending along a second curvilinear axis, the upwardly concave section defining a second portion of the internal passage;
- and
- wherein the first and second curvilinear axes at least partially form or define the curvilinear path along which the internal passage extends.
4 more elements
A method, comprising:
- connecting a lubricator to a wellhead at the top or head of an oil and gas wellbore, the lubricator defining an internal passage extending along a curvilinear path;
- and
- conveying, through the internal passage of the lubricator and along the curvilinear path, a downhole tool in combination with a conveyance string connected to the downhole tool;
- wherein the lubricator includes a downwardly concave section extending along a first curvilinear axis, the downwardly concave section defining a first portion of the internal passage, and the first curvilinear axis at least partially forming or defining the curvilinear path along which the internal passage extends;
- and
- wherein conveying, through the internal passage of the lubricator and along the curvilinear path, the downhole tool and the conveyance string connected to the downhole tool comprises:
- generally aligning the downhole tool with the first curvilinear axis using pivot joints, the pivot joints being interposed between respective portions of the downhole tool.
4 more elements
A method, comprising:
- connecting a lubricator to a wellhead at the top or head of an oil and gas wellbore, the lubricator defining an internal passage extending along a curvilinear path;
- and
- conveying, through the internal passage of the lubricator and along the curvilinear path, a downhole tool in combination with a conveyance string connected to the downhole tool;
- wherein the lubricator includes a downwardly concave section extending along a first curvilinear axis, the downwardly concave section defining a first portion of the internal passage, and the first curvilinear axis at least partially forming or defining the curvilinear path along which the internal passage extends;
- wherein conveying, through the internal passage of the lubricator and along the curvilinear path, the downhole tool and the conveyance string connected to the downhole tool comprises:
- conveying the downhole tool and the conveyance string connected to the downhole tool so that the downhole tool extends within the lubricator;
- and
- wherein conveying, through the internal passage of the lubricator and along the curvilinear path, the downhole tool and the conveyance string connected to the downhole tool further comprises:
- during or after conveying the downhole tool and the conveyance string connected to the downhole tool so that the downhole tool extends within the lubricator, pumping fluid into the lubricator to urge the downhole tool through the lubricator toward the wellhead.
6 more elements
A method, comprising:
- connecting a lubricator to a wellhead at the top or head of an oil and gas wellbore, the lubricator defining an internal passage extending along a curvilinear path;
- and
- conveying, through the internal passage of the lubricator and along the curvilinear path, a downhole tool in combination with a conveyance string connected to the downhole tool:
- wherein the lubricator includes a downwardly concave section extending along a first curvilinear axis, the downwardly concave section defining a first portion of the internal passage, and the first curvilinear axis at least partially forming or defining the curvilinear path along which the internal passage extends;
- wherein conveying, through the internal passage of the lubricator and along the curvilinear path, the downhole tool and the conveyance string connected to the downhole tool comprises:
- conveying the downhole tool and the conveyance string connected to the downhole tool so that the downhole tool extends within the lubricator;
- and
- wherein conveying, through the internal passage of the lubricator and along the curvilinear path, the downhole tool and the conveyance string connected to the downhole tool further comprises:
- during or after conveying the downhole tool and the conveyance string connected to the downhole tool so that the downhole tool extends within the lubricator, engaging the downhole tool with a pushrod to urge the downhole tool through the lubricator toward the wellhead.
6 more elements
A method, comprising:
- connecting a lubricator to a wellhead at the top or head of an oil and gas wellbore, the lubricator defining an internal passage extending along a curvilinear path;
- and
- conveying, through the internal passage of the lubricator and along the curvilinear path, a downhole tool in combination with a conveyance string connected to the downhole tool;
- wherein the lubricator includes a downwardly concave section extending along a first curvilinear axis, the downwardly concave section defining a first portion of the internal passage, and the first curvilinear axis at least partially forming or defining the curvilinear path along which the internal passage extends;
- wherein conveying, through the internal passage of the lubricator and along the curvilinear path, the downhole tool and the conveyance string connected to the downhole tool comprises:
- conveying the downhole tool and the conveyance string connected to the downhole tool so that the downhole tool extends within the lubricator;
- and
- wherein conveying, through the internal passage of the lubricator and along the curvilinear path, the downhole tool and the conveyance string connected to the downhole tool further comprises:
- conveying the downhole tool and the conveyance string connected to the downhole tool so that the downhole tool extends within the wellhead;
- and
- during or after conveying the downhole tool and the conveyance string connected to the downhole tool so that the downhole tool extends within the wellhead, pumping fluid into the wellhead to urge the downhole tool through the wellhead toward the wellbore.
8 more elements
(canceled)
A method, comprising:
- connecting a lubricator to a wellhead at the top or head of an oil and gas wellbore, the lubricator defining an internal passage extending along a curvilinear path;
- and
- conveying, through the internal passage of the lubricator and along the curvilinear path, a downhole tool in combination with a conveyance string connected to the downhole tool;
- wherein the lubricator includes a downwardly concave section extending along a first curvilinear axis, the downwardly concave section defining a first portion of the internal passage, and the first curvilinear axis at least partially forming or defining the curvilinear path along which the internal passage extends;
- wherein the downhole tool comprises:
- a plug;
- a setting tool connected to the plug;
- and
- a perforating gun connected to the setting tool, the perforating gun comprising:
- a plurality of perforator segments;
- a plurality of first pivot joints, each of the first pivot joints being interposed between respective ones of the perforator segments;
- and
- a second pivot joint interposed between the setting tool and one of the perforator segments;
- and
- wherein conveying, through the internal passage of the lubricator and along the curvilinear path, the downhole tool and the conveyance string connected to the downhole tool includes generally aligning the downhole tool with the first curvilinear axis using the second pivot joint and the plurality of first pivot joints.
12 more elements
A lubricator system, comprising:
- a lubricator defining an internal passage extending along a curvilinear path, the lubricator being configured to be connected to a wellhead at the top or head of an oil and gas wellbore;
- a downhole tool;
- and
- a wireline configured to be connected to the downhole tool;
- wherein the downhole tool and the wireline, in combination, are configured to be conveyed through the internal passage of the lubricator and along the curvilinear path;
- and
- wherein the lubricator includes a downwardly concave section extending along a first curvilinear axis, the downwardly concave section defining a first portion of the internal passage, and the first curvilinear axis at least partially forming or defining the curvilinear path along which the internal passage extends.
4 more elements
A lubricator system, comprising:
- a lubricator defining an internal passage extending along a curvilinear path, the lubricator being configured to be connected to a wellhead at the top or head of an oil and gas wellbore;
- a downhole tool;
- and
- a conveyance string configured to be connected to the downhole tool;
- wherein the downhole tool and the conveyance string, in combination, are configured to be conveyed through the internal passage of the lubricator and along the curvilinear path;
- wherein the lubricator includes a downwardly concave section extending along a first curvilinear axis, the downwardly concave section defining a first portion of the internal passage, and the first curvilinear axis at least partially forming or defining the curvilinear path along which the internal passage extends;
- wherein the lubricator further includes an upwardly concave section extending along a second curvilinear axis, the upwardly concave section defining a second portion of the internal passage;
- and
- wherein the first and second curvilinear axes at least partially form or define the curvilinear path along which the internal passage extends.
6 more elements
A lubricator system, comprising:
- a lubricator defining an internal passage extending along a curvilinear path, the lubricator being configured to be connected to a wellhead at the top or head of an oil and gas wellbore;
- a downhole tool;
- and
- a conveyance string configured to be connected to the downhole tool;
- wherein the downhole tool and the conveyance string, in combination, are configured to be conveyed through the internal passage of the lubricator and along the curvilinear path;
- wherein the lubricator includes a downwardly concave section extending along a first curvilinear axis, the downwardly concave section defining a first portion of the internal passage, and the first curvilinear axis at least partially forming or defining the curvilinear path along which the internal passage extends;
- and
- wherein the downhole tool includes pivot joints interposed between respective portions thereof to enable general alignment of the downhole tool with the first curvilinear axis when the downhole tool and the conveyance string, in combination, are conveyed through the internal passage of the lubricator and along the curvilinear path.
5 more elements
A lubricator system, comprising:
- a lubricator defining an internal passage extending along a curvilinear path, the lubricator being configured to be connected to a wellhead at the top or head of an oil and gas wellbore;
- a downhole tool;
- and
- a conveyance string configured to be connected to the downhole tool;
- wherein the downhole tool and the conveyance string, in combination, are configured to be conveyed through the internal passage of the lubricator and along the curvilinear path;
- wherein the lubricator includes a downwardly concave section extending along a first curvilinear axis, the downwardly concave section defining a first portion of the internal passage, and the first curvilinear axis at least partially forming or defining the curvilinear path along which the internal passage extends;
- wherein the lubricator system is actuable to a first operational state in which the downhole tool extends within the lubricator;
- and
- wherein, in the first operational state, fluid is configured to be pumped into the lubricator to urge the downhole tool through the lubricator toward the wellhead.
6 more elements
A lubricator system, comprising:
- a lubricator defining an internal passage extending along a curvilinear path, the lubricator being configured to be connected to a wellhead at the top or head of an oil and gas wellbore;
- a downhole tool;
- and
- a conveyance string configured to be connected to the downhole tool;
- wherein the downhole tool and the conveyance string, in combination, are configured to be conveyed through the internal passage of the lubricator and along the curvilinear path;
- wherein the lubricator includes a downwardly concave section extending along a first curvilinear axis, the downwardly concave section defining a first portion of the internal passage, and the first curvilinear axis at least partially forming or defining the curvilinear path along which the internal passage extends;
- wherein the lubricator system is actuable to a first operational state in which the downhole tool extends within the lubricator;
- and
- wherein, in the first operational state, a pushrod is configured to engage the downhole tool to urge the downhole tool through the lubricator toward the wellhead.
6 more elements
A lubricator system, comprising:
- a lubricator defining an internal passage extending along a curvilinear path, the lubricator being configured to be connected to a wellhead at the top or head of an oil and gas wellbore;
- a downhole tool;
- and
- a conveyance string configured to be connected to the downhole tool;
- wherein the downhole tool and the conveyance string, in combination, are configured to be conveyed through the internal passage of the lubricator and along the curvilinear path;
- wherein the lubricator includes a downwardly concave section extending along a first curvilinear axis, the downwardly concave section defining a first portion of the internal passage, and the first curvilinear axis at least partially forming or defining the curvilinear path along which the internal passage extends;
- wherein the lubricator system is actuable to a first operational state in which the downhole tool extends within the lubricator;
- wherein the lubricator system is actuable to a second operational state in which the downhole tool extends within the wellhead;
- wherein the lubricator system is actuable to a third operational state in which the downhole tool extends within the wellbore;
- and
- wherein, in the second operational state:
- fluid is configured to be pumped into the wellhead to urge the downhole tool through the wellhead toward the wellbore;
- and
- the conveyance string is connected to the downhole tool and extends out of the lubricator, and a sealing cap sealingly engages the conveyance string so that, when the fluid is pumped into the wellhead, the sealing cap holds backpressure of the pumped fluid in the lubricator.
11 more elements
A lubricator system, comprising:
- a lubricator defining an internal passage extending along a curvilinear path, the lubricator being configured to be connected to a wellhead at the top or head of an oil and gas wellbore;
- a downhole tool;
- and
- a conveyance string configured to be connected to the downhole tool;
- wherein the downhole tool and the conveyance string, in combination, are configured to be conveyed through the internal passage of the lubricator and along the curvilinear path;
- wherein the lubricator includes a downwardly concave section extending along a first curvilinear axis, the downwardly concave section defining a first portion of the internal passage, and the first curvilinear axis at least partially forming or defining the curvilinear path along which the internal passage extends;
- wherein the downhole tool comprises:
- a plug;
- a setting tool connected to the plug;
- and
- a perforating gun connected to the setting tool, the perforating gun comprising:
- a plurality of perforator segments;
- a plurality of first pivot joints, each of the first pivot joints being interposed between respective ones of the perforator segments;
- and
- a second pivot joint interposed between the setting tool and one of the perforator segments;
- and
- wherein the second pivot joint and the plurality of first pivot joints are configured to generally align the downhole tool with the first curvilinear axis so that the downhole tool, in combination with the conveyance string, is permitted to be conveyed through the internal passage of the lubricator and along the curvilinear path.
14 more elements
A lubricator system, comprising:
- a lubricator defining an internal passage extending along a curvilinear path, the lubricator being adapted to be connected to a wellhead at the top or head of an oil and gas wellbore;
- wherein the lubricator includes a downwardly concave section extending along a first curvilinear axis, the downwardly concave section defining a first portion of the internal passage;
- wherein the lubricator system is actuable to a first operational state in which a downhole tool and a wireline connected thereto extend within the downwardly concave section of the lubricator;
- wherein the first portion of the internal passage of the lubricator is configured to permit the downhole tool and the wireline connected thereto to extend within the downwardly concave section of the lubricator when the lubricator system is in the first operational state;
- and
- wherein the lubricator system further comprises a sealing cap adapted to sealingly engage the wireline.
3 more elements
A lubricator system, comprising:
- a lubricator defining an internal passage extending along a curvilinear path, the lubricator being adapted to be connected to a wellhead at the top or head of an oil and gas wellbore;
- wherein the lubricator includes a downwardly concave section extending along a first curvilinear axis, the downwardly concave section defining a first portion of the internal passage;
- wherein the lubricator system is actuable to a first operational state in which a downhole tool and a conveyance string connected thereto extend within the downwardly concave section of the lubricator;
- wherein the first portion of the internal passage of the lubricator is configured to permit the downhole tool and the conveyance string connected thereto to extend within the downwardly concave section of the lubricator when the lubricator system is in the first operational state;
- and
- wherein the lubricator further includes an upwardly concave section extending along a second curvilinear axis, the upwardly concave section defining a second portion of the internal passage.
3 more elements
A lubricator system, comprising:
- a lubricator defining an internal passage extending along a curvilinear path, the lubricator being adapted to be connected to a wellhead at the top or head of an oil and gas wellbore;
- wherein the lubricator includes a downwardly concave section extending along a first curvilinear axis, the downwardly concave section defining a first portion of the internal passage;
- wherein the lubricator system is actuable to a first operational state in which a downhole tool and a conveyance string connected thereto extend within the downwardly concave section of the lubricator;
- wherein the first portion of the internal passage of the lubricator is configured to permit the downhole tool and the conveyance string connected thereto to extend within the downwardly concave section of the lubricator when the lubricator system is in the first operational state;
- wherein the lubricator system is actuable to:
- a second operational state in which the downhole tool extends within the wellhead;
- and
- a third operational state in which the downhole tool extends within the wellbore
- wherein the lubricator system further comprises the downhole tool and the conveyance string connected thereto;
- wherein the conveyance string is, or comprises, a wireline;
- wherein the lubricator system further comprises a sealing cap adapted to sealingly engage the wireline;
- and
- wherein, in the second operational state:
- fluid is adapted to be pumped into the wellhead to urge the downhole tool through the wellhead toward the wellbore;
- the wireline extends out of the lubricator;
- and
- the sealing cap sealingly engages the wireline so that, when the fluid is pumped into the wellhead, the sealing cap holds backpressure of the pumped fluid in the lubricator.
14 more elements
Dependencies are inferred from the claim text.