CN114453904B - Suspension nipple milling tool and use method thereof - Google Patents
Suspension nipple milling tool and use method thereof Download PDFInfo
- Publication number
- CN114453904B CN114453904B CN202111349358.1A CN202111349358A CN114453904B CN 114453904 B CN114453904 B CN 114453904B CN 202111349358 A CN202111349358 A CN 202111349358A CN 114453904 B CN114453904 B CN 114453904B
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- CN
- China
- Prior art keywords
- piston
- mandrel
- lock ring
- ring groove
- tail pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000003801 milling Methods 0.000 title claims abstract description 64
- 210000002445 nipple Anatomy 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000000725 suspension Substances 0.000 title claims description 36
- 238000005553 drilling Methods 0.000 claims abstract description 27
- 238000009434 installation Methods 0.000 claims abstract description 15
- 238000011010 flushing procedure Methods 0.000 claims description 26
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 19
- 229910052802 copper Inorganic materials 0.000 claims description 19
- 239000010949 copper Substances 0.000 claims description 19
- 239000002184 metal Substances 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 7
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 abstract 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a hanging nipple milling tool and a using method thereof. The tool can be used for cleaning foreign matters accumulated in the open lock ring groove of the large-size tail pipe hanging nipple during drilling, and smooth installation of the large-size tail pipe hanging is ensured.
Description
Technical Field
The invention relates to the technical field of petroleum and natural gas drilling equipment, in particular to a suspension nipple milling tool and a use method thereof.
Background
At present, the conventional well structure comprises 4 layers or 5 layers of casings, when a high-temperature high-pressure well and an ultra-deep well with complex geological conditions and less temporary well data are encountered, a large-size tail pipe hanger is used, so that great freedom degree can be provided for the development of oil and gas fields, and the operation difficulty and the operation risk are greatly reduced.
Because foreign matters are easily accumulated in the open lock ring groove of the large-size tail pipe hanging nipple during drilling, the large-size tail pipe hanging nipple cannot be completely washed through a washing tool, and the large-size tail pipe hanging is required to be milled in an installation area of the large-size tail pipe hanging before installation, so that smooth installation of the large-size tail pipe hanging is ensured.
Disclosure of Invention
The invention overcomes the defects in the prior art, the large-size tail pipe hanger needs to be milled in the installation area of the large-size tail pipe hanger before installation, so that smooth installation of the large-size tail pipe hanger is ensured, the existing tool can only mill the large-size tail pipe hanger but cannot wash the large-size tail pipe hanger, the large-size tail pipe hanger after milling still needs to be replaced for washing operation, and the hanging nipple milling tool and the application method thereof are provided.
The aim of the invention is achieved by the following technical scheme.
A suspension nipple milling tool comprises a mandrel, a lock ring, a tail pipe hanging limiting device, an anti-rotation block, a piston, a lock ring groove milling sheet and a piston lower limiting ring,
the method comprises the steps that a mandrel expanding section is formed in the middle of the outer portion of a mandrel, a lock ring groove is formed in the head end of the mandrel expanding section, the lock ring is in threaded connection with the lock ring groove, the purpose of pressing the lock ring groove milling piece through the lock ring is achieved, a lock ring groove milling piece mounting groove is formed in the mandrel expanding section below the lock ring groove, the lock ring groove milling piece is arranged in the lock ring groove milling piece mounting groove through an anti-rotation block, the purpose of preventing the lock ring groove milling piece from rotating is achieved through the anti-rotation block, the anti-rotation block is connected with the outer wall of the mandrel through an anti-rotation block fixing bolt, a horizontal flushing hole penetrating through the side wall of the mandrel is formed in the side wall of the lock ring groove milling piece mounting groove, a piston is suspended in the mandrel through a copper pin arranged in the horizontal flushing hole, a metal ball is located at the head end of the piston, the purpose of sealing the piston is achieved, the piston is achieved through an inclined plane, the purpose of preventing the lock ring groove milling piece from rotating is achieved on the side wall of the mandrel, the piston penetrating through the inclined plane is achieved, and the purpose of limiting the movement of the piston is achieved through the inclined ring is achieved, and the position of the piston is limited by the position of the inner wall of the piston.
When the metal ball reaches the upper part of the piston through the inside of the drill rod, after the copper pin is sheared, the piston is driven to move downwards and fall on the lower limit ring of the piston, so that the horizontal flushing hole is exposed, and the flushing function of the horizontal flushing hole is realized.
And a circulating through hole longitudinally penetrating through the mandrel is formed in the end face of the mandrel so as to facilitate circulation of drilling fluid.
The acute angle between the oblique flushing hole and the radial direction of the mandrel is 45 degrees.
And a tail pipe hanging limiting device is arranged on the outer wall of the locking ring so as to realize fixed-point circulation of the service tool.
A sealing ring is arranged between the inner wall of the mandrel and the outer wall of the piston.
And a wear indication pin is arranged below the anti-rotation block fixing bolt.
And forming a copper pin groove on the outer wall of the piston, wherein the copper pin is arranged in the copper pin groove.
The application method of the suspension nipple milling tool is carried out according to the following steps:
the drilling machine is characterized in that a drill floor is connected with a drill rod, a suspension nipple milling tool is connected with the drill rod through a mandrel, the drill rod is used for conveying the suspension nipple milling tool to a position which is half a meter above a large-size tail pipe hanging installation position, a top drive-off compensator is connected, a pump is started, drilling fluid is sprayed out through an oblique flushing hole, the large-size tail pipe hanging installation position is flushed, the suspension nipple milling tool is slowly lowered until the suspension nipple milling tool cannot continue to move downwards, 20 kilopounds are pressed down, a tail pipe hanging limiting device of the suspension nipple milling tool is embedded into a limiting groove of the suspension nipple of the large-size tail pipe hanging, the locking ring groove milling piece of the suspension nipple milling tool is embedded into an opening locking groove of the large-size tail pipe hanging nipple, the suspension nipple is lifted up until an over-lifting value appears, a pump is stopped, a metal ball is thrown, the pumping metal ball is started to a position above a piston, the copper pin is sheared by pressing, the piston is moved down onto the limiting ring below the piston, the horizontal flushing hole is exposed, the pump is started again, the drilling fluid is sprayed out through the horizontal flushing hole until the large-size tail pipe hanging installation position is carried out, after the circulation is carried out, the locking ring is lifted down again, the cutting ring is lifted down to the side of the large-size tail pipe hanging nipple is rotated, the drilling tool is rotated, the cutting device is stopped, and the cutting is cut down to the side is rotated, and the cutting device is stopped, and the cutting pipe is rotated to the side is stopped, and the cutting device is lifted.
The beneficial effects of the invention are as follows: the lock ring groove milling sheet can be embedded into the open lock ring groove of the large-size tail pipe hanging pup joint, and the open lock ring groove can be milled;
the outside of catch is installed the tail pipe and is hung stop device, can imbed the large-scale tail pipe and hang the spacing inslot that hangs nipple joint, is convenient for realize service tool's fixed point circulation.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
in the figure: 1 is a mandrel, 2 is a lock ring, 3 is a tail pipe hanging limiting device, 4 is an anti-rotation block fixing bolt, 5 is a wear indication pin, 6 is an anti-rotation block, 7 is a copper pin, 8 is a metal ball, 9 is a piston, 10 is a lock ring groove milling piece, 11 is a sealing ring, 12 is a piston lower limiting ring, 101 is a horizontal flushing hole, 102 is an oblique flushing hole, 103 is a circulating through hole, and 901 is a copper pin groove.
Other relevant drawings may be made by those of ordinary skill in the art from the above figures without undue burden.
Detailed Description
The technical scheme of the invention is further described by specific examples.
Example 1
A suspension nipple milling tool comprises a mandrel 1, a lock ring 2, a tail pipe hanging limiting device 3, an anti-rotation block 6, a piston 9, a lock ring groove milling sheet 10 and a piston lower limiting ring 12,
the method comprises the steps that a mandrel expanding section is formed in the middle of the outer portion of a mandrel 1, a lock ring groove is formed in the head end of the mandrel expanding section, a lock ring 2 is in threaded connection with the lock ring groove, the purpose of pressing a lock ring groove milling sheet 10 through the lock ring 2 is achieved, a lock ring groove milling sheet mounting groove is formed in the mandrel expanding section below the lock ring groove, the lock ring groove milling sheet 10 is arranged in the lock ring groove milling sheet mounting groove through an anti-rotation block 6, the purpose of preventing the lock ring groove milling sheet 10 from rotating is achieved through the anti-rotation block 6, the anti-rotation block 6 is connected with the outer wall of the mandrel 1 through an anti-rotation block fixing bolt 4, a horizontal flushing hole 101 penetrating through the side wall of the mandrel 1 is formed in the side wall of the mandrel 1 at the lock ring groove milling sheet mounting groove, a piston 9 is suspended in the mandrel 1 through a copper pin 7 arranged in the horizontal flushing hole 101, a metal ball 8 is located at the head end of the piston 9, the purpose of sealing the piston 9 is achieved, the tail end of the mandrel expanding section is in a transition mode through an inclined plane, an inclined flushing hole 102 penetrating through the side wall of the mandrel 1 is formed in the side wall of the mandrel 1, and the purpose of limiting the movement of the piston 9 is achieved through the position limiting the inner wall of the mandrel 1.
When the metal ball 8 passes through the inside of the drill rod and reaches the upper part of the piston 9, after the copper pin 7 is sheared, the piston 9 is driven to move downwards and fall on the lower limit ring 12 of the piston, so that the horizontal flushing hole 101 is exposed, and the flushing function of the horizontal flushing hole 101 is realized.
Example two
On the basis of the first embodiment, a circulation through hole 103 longitudinally penetrating the mandrel 1 is formed in the end face of the mandrel 1 so as to facilitate circulation of drilling fluid.
The acute angle formed by the oblique flushing hole 102 and the radial direction of the mandrel 1 is 45 degrees.
A tail pipe hanging limiting device 3 is arranged on the outer wall of the locking ring 2 so as to realize the fixed-point circulation of the service tool.
Example III
On the basis of the second embodiment, a sealing ring is arranged between the inner wall of the mandrel 1 and the outer wall of the piston 9.
A wear indicator pin 5 is provided below the anti-rotation block fixing bolt 4.
A copper pin groove 901 is formed on the outer wall of the piston 9, and the copper pin 7 is disposed in the copper pin groove 901.
Example IV
The application method of the suspension nipple milling tool is carried out according to the following steps:
and (3) connecting a suspension nipple milling tool with the drill rod by utilizing the mandrel 1, conveying the suspension nipple milling tool to a position which is half a meter above the installation position of the large-size tail pipe hanger by utilizing the drill rod, connecting a top drive-off compensator, opening a pump, spraying drilling fluid through an oblique flushing hole 102, flushing the installation position of the large-size tail pipe hanger, slowly lowering the suspension nipple milling tool until the suspension nipple milling tool cannot continue to move downwards, pressing down by 20 kilopounds, embedding a tail pipe hanger limiting device 3 of the suspension nipple milling tool into a limiting groove of the suspension nipple of the large-size tail pipe hanger, embedding a locking ring groove milling piece 10 of the suspension nipple milling tool into an opening locking ring groove of the large-size tail pipe hanger, lifting up until an over-lifting value appears, stopping a pump, throwing a metal ball above a piston, pressing and shearing copper pins, moving the piston down onto a limiting ring, exposing a horizontal flushing hole 101, opening the pump again, spraying the drilling fluid through the horizontal hole 101 until the large-size tail pipe hanger mounting position, lifting the circulating pump again until the drilling tool is stopped, cutting off the drilling tool is rotated, and the drilling tool is lifted down to a fixed point after the installation position of the large-size tail pipe hanger is lifted, and the drilling tool is washed down again, and the drilling tool is rotated and the drilling tool is washed down.
Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature's illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "under" other elements or features would then be oriented "over" the other elements or features. Thus, the exemplary term "lower" may encompass both an upper and lower orientation. The device may be otherwise positioned (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Moreover, relational terms such as "first" and "second", and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.
The foregoing detailed description of the invention has been presented for purposes of illustration and description, but is not intended to limit the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (8)
1. A hang nipple joint milling tool which characterized in that: comprises a mandrel, a lock ring, a tail pipe hanging limiting device, an anti-rotation block, a piston, a lock ring groove milling sheet and a piston lower limiting ring,
the method comprises the steps that a mandrel expanding section is formed in the middle of the outer portion of a mandrel, a lock ring groove is formed in the head end of the mandrel expanding section, the lock ring is in threaded connection with the lock ring groove, the purpose of pressing the lock ring groove milling piece through the lock ring is achieved, a lock ring groove milling piece mounting groove is formed in the mandrel expanding section below the lock ring groove, the lock ring groove milling piece is arranged in the lock ring groove milling piece mounting groove through an anti-rotation block, the purpose of preventing the lock ring groove milling piece from rotating is achieved through the anti-rotation block, the anti-rotation block is connected with the outer wall of the mandrel through an anti-rotation block fixing bolt, a horizontal flushing hole penetrating through the side wall of the mandrel is formed in the side wall of the lock ring groove milling piece mounting groove, a piston is suspended in the mandrel through a copper pin arranged in the horizontal flushing hole, a metal ball is located at the head end of the piston, the purpose of sealing the piston is achieved, the piston is achieved through an inclined plane, the purpose of preventing the lock ring groove milling piece from rotating is achieved on the side wall of the mandrel, the piston penetrating through the inclined plane is achieved, and the purpose of limiting the movement of the piston is achieved through the inclined ring is achieved, and the position of the piston is limited by the position of the inner wall of the piston.
2. A suspension sub milling tool as claimed in claim 1 wherein: and a circulating through hole longitudinally penetrating through the mandrel is formed in the end face of the mandrel so as to facilitate circulation of drilling fluid.
3. A suspension sub milling tool as claimed in claim 1 wherein: the acute angle between the oblique flushing hole and the radial direction of the mandrel is 45 degrees.
4. A suspension sub milling tool as claimed in claim 1 wherein: and a tail pipe hanging limiting device is arranged on the outer wall of the locking ring so as to realize fixed-point circulation of the service tool.
5. A suspension sub milling tool as claimed in claim 1 wherein: and a wear indication pin is arranged below the anti-rotation block fixing bolt.
6. A suspension sub milling tool as claimed in claim 1 wherein: and forming a copper pin groove on the outer wall of the piston, wherein the copper pin is arranged in the copper pin groove.
7. A suspension sub milling tool as claimed in claim 1 wherein: a sealing ring is arranged between the inner wall of the mandrel and the outer wall of the piston.
8. A method of using a suspension sub milling tool according to any one of claims 1 to 7, wherein: the method comprises the following steps of:
the drilling rod is connected on the drill floor and then is put into the well, the suspension nipple milling tool is connected with the drilling rod through the mandrel, the drilling rod is used for conveying the suspension nipple milling tool to the position above the installation position of the large-size tail pipe hanger by half a meter, the drilling rod is connected with the top drive open compensator, the open pump and drilling fluid are sprayed out through the oblique flushing hole to flush the installation position of the underground large-size tail pipe hanger, the suspension nipple milling tool is slowly put down until the suspension nipple milling tool cannot continuously move downwards, 20 kilopounds are pressed down, the tail pipe hanger limiting device of the suspension nipple milling tool is embedded into the limiting groove of the suspension nipple of the large-size tail pipe hanger, the locking ring groove milling piece of the suspension nipple milling tool is embedded into the open locking ring groove of the large-size tail pipe hanger until the lifting value appears, the pump is stopped, the metal ball is thrown, the pumping metal ball is arranged above the piston, the copper pin is pressed down, the piston is moved down to the limiting ring, the horizontal flushing hole is exposed, the open pump and the drilling fluid is sprayed out through the horizontal tail hole again until the large-size tail pipe hanger is arranged, the circulation is carried out again, the drilling tool is stopped down to the fixed point after the large-size tail pipe hanger is hung, and the drilling tool is rotated, the rotary cutting tool is cut down, and the drilling tool is rotated to the fixed point is moved to the fixed point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111349358.1A CN114453904B (en) | 2021-11-15 | 2021-11-15 | Suspension nipple milling tool and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111349358.1A CN114453904B (en) | 2021-11-15 | 2021-11-15 | Suspension nipple milling tool and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114453904A CN114453904A (en) | 2022-05-10 |
| CN114453904B true CN114453904B (en) | 2023-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111349358.1A Active CN114453904B (en) | 2021-11-15 | 2021-11-15 | Suspension nipple milling tool and use method thereof |
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| Country | Link |
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| CN (1) | CN114453904B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8627890B2 (en) * | 2007-07-27 | 2014-01-14 | Weatherford/Lamb, Inc. | Rotating continuous flow sub |
| CN203796206U (en) * | 2014-04-11 | 2014-08-27 | 杜越鹏 | Milling and grinding nipple adopting reverse circulation |
| CN205577874U (en) * | 2016-02-25 | 2016-09-14 | 中国石油化工股份有限公司 | A connection structure for liner hanger sends into nipple joint |
| CN106141756A (en) * | 2016-07-29 | 2016-11-23 | 衡阳鸿菱石油管材有限责任公司 | A kind of forcer device for the processing of petroleum pipeline adnexa pipe nipple |
| CN205870085U (en) * | 2016-07-29 | 2017-01-11 | 衡阳鸿菱石油管材有限责任公司 | A top device for processing of petroleum pipeline annex nipple joint |
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2021
- 2021-11-15 CN CN202111349358.1A patent/CN114453904B/en active Active
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| Publication number | Publication date |
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| CN114453904A (en) | 2022-05-10 |
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