CN106869817B - Deep sea test tubular column connector - Google Patents
Deep sea test tubular column connector Download PDFInfo
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- CN106869817B CN106869817B CN201710240162.6A CN201710240162A CN106869817B CN 106869817 B CN106869817 B CN 106869817B CN 201710240162 A CN201710240162 A CN 201710240162A CN 106869817 B CN106869817 B CN 106869817B
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- pipe column
- sliding
- deep sea
- sliding sleeve
- connector
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a deep sea test pipe column connector; belongs to the technical field of deep sea oil gas testing operation equipment. The connector comprises an upper tubular column, a lower tubular column, a sliding sleeve and a connecting mechanism; an upper pipe column is installed on the lower pipe column, a plurality of sliding holes which are communicated with each other are formed in the circumferences of the lower pipe column and the upper pipe column, connecting lugs are arranged at the bottoms of the sliding holes of the lower pipe column, and a connecting mechanism is movably installed in the sliding holes through the connecting lugs and pin shafts. The connector is simple in structure and good in practicability, and the defect that whether the test pipe column is completely connected or not cannot be judged by the traditional connector is overcome; when the connector is in operation, the sliding block is pushed to move upwards through the insertion of the test pipe column, so that the connecting shaft block of the connecting rod mechanism is driven to be embedded into the bayonet of the test pipe column, the connection between the test pipe column and the connector is realized, and the connector is simple and convenient to operate and high in reliability; the characteristic of small occupied volume improves the reliability of the connection of the deepwater test pipe column; meets the requirements of deep sea test operation.
Description
Technical Field
The invention relates to a deep sea test pipe column connector; belongs to the technical field of deep sea oil gas testing operation equipment.
Background
Deep sea testing operations are typically performed on semi-submersible rigs or vessels, which are subject to wind and wave movements, such as deep-sinking, rolling, pitching, etc., and the test string connected thereto is subject to such movements. If severe sea conditions are encountered during the test, for example: typhoons, tsunami, tides, need to immediately disconnect from the test tube column to stop the operation, moving the platform or drillship to a safe location; and after the sea condition is normal, continuing the test and reconnecting with the test pipe column, and recovering the deepwater operation. Although the current domestic underwater connectors are various, the current underwater connectors are large in size, have the defects of complex operation and low reliability, and cannot meet the requirements of deep sea test operation.
Disclosure of Invention
The invention aims at: the device has the advantages of small occupied volume, simple and convenient operation and high reliability; the deep sea test pipe column connector can meet the requirements of deep sea test operation.
The technical scheme of the invention is as follows:
a deep sea test pipe column connector comprises an upper pipe column, a lower pipe column, a sliding sleeve and a connecting mechanism; the device is characterized in that an upper pipe column is arranged on the lower pipe column, a plurality of sliding holes which are communicated with each other are formed in the circumferences of the lower pipe column and the upper pipe column, connecting lugs are arranged at the bottoms of the sliding holes of the lower pipe column, and a connecting mechanism is movably arranged in the sliding holes through the connecting lugs and pin shafts.
The lower pipe column is a reducing body, and the upper pipe column is sleeved on the lower pipe column through threads.
A flange is arranged on the upper pipe column above the upper pipe column sliding hole, and a sliding sleeve is movably arranged on the upper pipe column through the flange; the inner wall of the sliding sleeve is connected with the flange in a sealing fit manner, so that an upper cavity and a lower cavity which are mutually independent are formed between the sliding sleeve and the upper tubular column, and a reset spring is arranged in the upper cavity.
The upper pipe column is provided with a hydraulic oil passage, and one end of the hydraulic oil passage is communicated with the lower cavity.
The connecting mechanism consists of a sliding block, a connecting rod and a connecting shaft block, wherein the lower end of the connecting rod is movably connected with the sliding block through a pin shaft, and the upper end of the connecting rod is movably connected with the connecting shaft block through a pin shaft.
The outer surface of the connecting rod is provided with a locking lug which is connected with the sliding sleeve in a contact way.
The sliding block is a trapezoid body, the top of the sliding block is provided with a connecting lug, and sliding handles are symmetrically arranged on the sliding blocks at two sides of the connecting lug.
The sliding grooves are formed in the sliding hole walls on two sides of the sliding hole of the upper pipe column, the sliding blocks are in sliding connection with the upper pipe column through the matching of the sliding handles and the sliding grooves, and one ends of the sliding blocks extend into the central hole of the upper pipe column through the sliding hole.
The connecting shaft block is a cuboid with one end being conical, and connecting lugs are respectively arranged at the top and the bottom of the connecting shaft block.
Positioning grooves are uniformly distributed on the end face of the bottom of the lower pipe column.
The sliding sleeve consists of an upper sliding sleeve and a lower sliding sleeve, and the upper sliding sleeve is in threaded connection with the lower sliding sleeve.
The beneficial effects of the invention are as follows:
the deep sea test pipe column connector is simple in structure and good in practicability, and the defect that whether the test pipe column is completely connected or not cannot be judged by the traditional connector is overcome; when the connector is in operation, the sliding block is pushed to move upwards through the insertion of the test pipe column, so that the connecting shaft block of the connecting rod mechanism is driven to be embedded into the bayonet of the test pipe column, the connection between the test pipe column and the connector is realized, and the connector is simple and convenient to operate and high in reliability; the characteristic of small occupied volume improves the reliability of the connection of the deepwater test pipe column; meets the requirements of deep sea test operation.
Drawings
FIG. 1 is a schematic perspective view of the present invention with a sliding sleeve removed;
FIG. 2 is a schematic perspective view of the present invention with the sliding sleeve and connecting structure removed;
FIG. 3 is a schematic perspective view of an upper tubular string of the present invention;
FIG. 4 is a schematic perspective view of a lower string according to the present invention;
fig. 5 is a schematic perspective view of a connecting mechanism according to the present invention
FIG. 6 is a schematic perspective view of a slider according to the present invention
FIG. 7 is a schematic perspective view of a connecting block according to the present invention
FIG. 8 is a schematic view of the working state of the present invention;
fig. 9 is a schematic view of the present invention after locking the connection.
In the figure: 1. the device comprises an upper pipe column, a lower pipe column, a 3, a sliding sleeve, a 4, a connecting mechanism, a 5, a sliding hole, a 6, a flange, a 7, a connecting lug, a 8, an upper sliding sleeve, a 9, a lower sliding sleeve, a 10, a return spring, a 11, a hydraulic oil duct, a 12, a sliding block, a 13, a connecting rod, a 14, a connecting shaft block, a 15, a sliding handle, a 16, a locking lug, a 17, a sliding chute, a 18, a positioning groove, a 19, a testing pipe column, a 20, a bayonet, a 21 and a positioning pin.
Detailed Description
The deep sea test pipe column connector comprises an upper pipe column 1, a lower pipe column 2, a sliding sleeve 3 and a connecting mechanism 4. The lower pipe column 2 is a reducing body, and the upper pipe column 1 is in threaded sleeve connection with the lower pipe column 2. A plurality of mutually communicated slide holes 5 are arranged on the circumferences of the lower pipe column 2 and the upper pipe column 1, and the slide holes 5 are communicated with the central holes of the lower pipe column 2 and the upper pipe column 1. A flange 6 is arranged on the upper pipe column 1 above the sliding hole 5 of the upper pipe column 1, and a sliding sleeve 3 is movably arranged on the upper pipe column 1 through the flange 6; the sliding sleeve 3 is composed of an upper sliding sleeve 8 and a lower sliding sleeve 9, and the upper sliding sleeve 8 and the lower sliding sleeve 9 are in threaded connection. The inner wall of the sliding sleeve 3 is connected with the flange 6 in a sealing sliding fit manner, so that an upper chamber and a lower chamber which are separated and formed by the flange 6 are formed between the sliding sleeve 3 and the upper tubular column 1, and a reset spring 10 is arranged in the upper chamber. The upper pipe column 1 is provided with a hydraulic oil duct 11, and one end of the hydraulic oil duct 11 is communicated with the lower chamber.
The bottom of the sliding hole 5 of the lower pipe column 2 is provided with a connecting lug 7, and a connecting mechanism 4 is movably arranged in the sliding hole 5 through the connecting lug 7 and a pin shaft.
The connecting mechanism 4 consists of a sliding block 12, a connecting rod 13 and a connecting shaft block 14, wherein the sliding block 12 is a trapezoid body, the top of the sliding block 12 is provided with a connecting lug 7, and sliding handles 15 are symmetrically arranged on the sliding block 12 at two sides of the connecting lug 7.
The connecting shaft block 14 is a rectangular body with one end being conical, and the top and the bottom of the connecting shaft block 14 are respectively provided with a connecting lug 4. The upper end of the connecting rod 13 is movably connected with the sliding block 12 through the connecting lug 7 and the pin shaft, and the lower end of the connecting rod 13 is movably connected with the connecting shaft block 14 through the connecting lug 7 and the pin shaft.
The outer surface of the connecting rod 13 of the connecting mechanism 4 is provided with a locking lug 16, and the locking lug 16 is in contact connection with the sliding sleeve.
The sliding grooves 17 are arranged on the sliding hole walls on two sides of the sliding hole 5 of the upper pipe column 1 of the deep sea test pipe column connector, the sliding blocks 12 are in sliding connection with the upper pipe column 1 through the matching of the sliding handles 15 and the sliding grooves 17, the purpose of the sliding grooves 17 is to limit the operation of the connecting mechanism 4, and one end of each sliding block 12 extends into the central hole of the upper pipe column 1 through the sliding hole 5 (see the attached figures 1-7).
The deep sea test pipe string connector is connected with the drill rod through threads in the central hole of the upper pipe string 1, and in the working process, the connecting mechanism 4 is in a contracted state in a normal state, and in the working process, the deep sea test pipe string connector descends through the drill rod, so that the test pipe string 19 of the wellhead is gradually inserted from the central hole of the lower pipe string 1 (see fig. 8).
Along with the insertion of the test pipe column 19, the top of the test pipe column 19 is contacted with the sliding block 12 extending to the central hole of the upper pipe column 1, and along with the gradual insertion of the test pipe column 19, the sliding block 12 is pushed to move upwards along the sliding groove 17, in the process, the sliding block 12 drives the connecting rod 13 and the connecting shaft block 14 to gradually straighten (radially shrink), finally the connecting shaft block 14 is embedded into the bayonet 20 corresponding to the connecting shaft block 14 on the test pipe column 19, and at the moment, the positioning pins 21 on the test pipe column 19 are just positioned in the positioning grooves 18 uniformly distributed on the end surface of the bottom of the lower pipe column 2, so that the connection between the test pipe column 19 and the connector is completed. The positioning pin 21 and the positioning groove 18 are used for enhancing the buckling strength of the connecting shaft block 14 and the bayonet 20 and preventing the test pipe column 19 from being displaced with the connector.
1. After the above-mentioned action is completed, the hydraulic oil duct 11 is pressed to force the sliding sleeve to move downwards and contact with the locking lug 16 on the outer surface of the connecting rod 13, so that the sliding block 12 is limited to be incapable of expanding radially, and the connection locking of the test pipe column 19 and the connector is completed (see fig. 9). When the sliding sleeve is in contact with the locking lug 16, the sliding sleeve cannot move downwards continuously, and the hydraulic pressure reaches the limit, so that the test pipe column 19 can be judged to be connected completely.
2. The extension length of the sliding block 12 of the deep sea test pipe column connector in the central hole of the upper pipe column 1 is suitable for preventing the central hole flow channel from being blocked, when the test pipe column 19 is separated from the connector, only the hydraulic oil duct 11 is needed to be used for releasing pressure, the sliding sleeve moves upwards under the action of the return spring 10 and is completely separated from the connecting rod 13, and after the drill rod is lifted up, the connecting shaft block 14 can be forced to withdraw from the bayonet 20, so that the connector is separated from the test pipe column 19.
The deep sea test pipe column connector is simple in structure and good in practicability, and the traditional connector is improved
A defect that whether the test pipe column is completely connected cannot be determined; the operation is simple and convenient, and the reliability is high; the characteristic of small occupied volume improves the reliability of the connection of the deepwater test tubular column 19; meets the requirements of deep sea test operation.
Claims (7)
1. A deep sea test pipe column connector comprises an upper pipe column (1), a lower pipe column (2), a sliding sleeve (3) and a connecting mechanism (4); an upper pipe column (1) is arranged on the lower pipe column (2), a plurality of mutually communicated sliding holes (5) are formed in the circumferences of the lower pipe column (2) and the upper pipe column (1), connecting lugs (7) are arranged at the bottoms of the sliding holes (5) of the lower pipe column (2), and a connecting mechanism (4) is movably arranged in the sliding holes (5) through the connecting lugs (7) and a pin shaft; the device is characterized in that a flange (6) is arranged on the upper pipe column (1) above the sliding hole (5) of the upper pipe column (1), and a sliding sleeve (3) is movably arranged on the upper pipe column (1) through the flange; the inner wall of the sliding sleeve (3) is in sealing fit connection with the flange (6), so that an upper chamber and a lower chamber which are mutually independent are formed between the sliding sleeve (3) and the upper tubular column (1), and a reset spring (10) is arranged in the upper chamber; the upper pipe column (1) is provided with a hydraulic oil duct (11), and one end of the hydraulic oil duct (11) is communicated with the lower cavity; the connecting mechanism (4) is composed of a sliding block (12), a connecting rod (13) and a connecting shaft block (14), the lower end of the connecting rod (13) is movably connected with the sliding block (12) through a pin shaft, and the upper end of the connecting rod (13) is movably connected with the connecting shaft block (14) through a pin shaft.
2. The deep sea test pipe column connector of claim 1, wherein the lower pipe column (2) is a reducing body, and the upper pipe column (1) is sleeved on the lower pipe column (2) in a threaded manner.
3. The deep sea test pipe column connector according to claim 1, wherein the outer surface of the connecting rod (13) is provided with a locking lug (16), and the locking lug (16) is in contact connection with the sliding sleeve (3).
4. The deep sea test pipe column connector according to claim 1, wherein the sliding block (12) is a trapezoid body, the top of the sliding block (12) is provided with a connecting lug (7), and sliding handles (15) are symmetrically arranged on the sliding blocks (12) at two sides of the connecting lug (7).
5. The deep sea test pipe column connector according to claim 1, wherein the connecting shaft block (14) is a rectangular body with one end being conical, and connecting lugs (7) are respectively arranged at the top and the bottom of the connecting shaft block (14).
6. The deep sea test pipe column connector according to claim 1, wherein sliding grooves (17) are formed in the sliding hole walls on two sides of the sliding hole (5) of the upper pipe column (1), the sliding block (12) is in sliding connection with the upper pipe column (1) through matching of the sliding handle (15) and the sliding grooves (17), and one end of the sliding block (12) extends into a central hole of the upper pipe column (1) through the sliding hole (5).
7. The deep sea test pipe column connector according to claim 1, wherein positioning grooves (18) are uniformly distributed on the bottom end surface of the lower pipe column (2); the sliding sleeve (3) is composed of an upper sliding sleeve (8) and a lower sliding sleeve (9), and the upper sliding sleeve (8) and the lower sliding sleeve (9) are in threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710240162.6A CN106869817B (en) | 2017-04-13 | 2017-04-13 | Deep sea test tubular column connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710240162.6A CN106869817B (en) | 2017-04-13 | 2017-04-13 | Deep sea test tubular column connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106869817A CN106869817A (en) | 2017-06-20 |
| CN106869817B true CN106869817B (en) | 2023-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710240162.6A Active CN106869817B (en) | 2017-04-13 | 2017-04-13 | Deep sea test tubular column connector |
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| CN (1) | CN106869817B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566164B (en) * | 2019-10-08 | 2021-09-10 | 长江大学 | Method for confirming optimal yield of offshore testing pipe column |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2935633B2 (en) * | 1994-03-11 | 1999-08-16 | 株式会社大林組 | Drilling rig for steel sheet pile wall construction |
| CN2453127Y (en) * | 2000-11-06 | 2001-10-10 | 新疆石油管理局钻井工艺研究院 | Ground anchor |
| CN101763498A (en) * | 2009-11-27 | 2010-06-30 | 成都九洲电子信息系统有限责任公司 | Area control circuit for passive ultra high frequency radio frequency identification |
| CN101806199B (en) * | 2010-03-19 | 2012-01-11 | 中国石油天然气集团公司 | Sea deepwater hydraulic connector |
| CN103397861B (en) * | 2013-08-13 | 2017-08-25 | 成都希能能源科技有限公司 | A kind of Non-workover pump detection device for electric submersible pump |
| CN105134096B (en) * | 2015-08-28 | 2017-10-20 | 西南石油大学 | A kind of marine test string frees arrangement for connecting system |
| CN206617101U (en) * | 2017-04-13 | 2017-11-07 | 长江大学 | A kind of deep-sea test string connector |
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2017
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| CN106869817A (en) | 2017-06-20 |
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