CN112031668A - Workover rig vertical derrick structure assembly - Google Patents
Workover rig vertical derrick structure assembly Download PDFInfo
- Publication number
- CN112031668A CN112031668A CN202010912464.5A CN202010912464A CN112031668A CN 112031668 A CN112031668 A CN 112031668A CN 202010912464 A CN202010912464 A CN 202010912464A CN 112031668 A CN112031668 A CN 112031668A
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- CN
- China
- Prior art keywords
- derrick
- upright
- workover rig
- ear seat
- propeller strut
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- 238000000034 method Methods 0.000 claims description 3
- 239000003208 petroleum Substances 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
-
- 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
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
-
- 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- 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)
- Jib Cranes (AREA)
Abstract
The invention relates to the technical field of petroleum workover equipment, in particular to a workover rig vertical derrick structure assembly. The propeller strut bottom of the device is arranged on the base, a telescopic hydraulic cylinder is arranged in the middle of the propeller strut, an upright derrick is arranged at the upper end of the propeller strut, a rotary crown block is arranged at the top end of the upright derrick, a rear support is vertically welded on a chassis truck, and an ear seat on the rear support, an ear seat on the left side of the upper end of the propeller strut and an ear seat on the left side of the bottom end of the upright derrick are connected together through a pin shaft. The invention realizes the operation state of the workover rig frame which is upright and has no guy rope, optimizes the stress state of the derrick, further increases the stability of the derrick during workover operation, improves the operation safety, simplifies the structure of the workover rig frame assembly, reduces the whole weight of the workover rig frame assembly, cancels the inner guy rope and the outer guy rope, and greatly reduces the operation area of a well field.
Description
The technical field is as follows:
the invention relates to the technical field of petroleum workover equipment, in particular to a workover rig vertical derrick structure assembly.
Background art:
the existing workover rig derrick assembly mainly comprises an inclined derrick, a fixed crown block, a pull rod, a rear support, a propeller strut, an inner guy rope, an outer guy rope, a base foundation and the like. During normal workover operations, the derrick is inclined at an angle of about 3 ° to the vertical, thus creating sufficient working space for the operator at the well bore.
Because the derrick is in the inclined operating state, the derrick is not only required to bear the pressure in the vertical direction, but also required to bear the component force generated by the inclined angle, so that the derrick is in a complex stress state, which causes strict examination on the structural strength of the derrick and can increase the weight of the derrick.
The inner guy rope and the outer guy rope are used for overcoming component force generated by an inclined state when the derrick is operated, and although the stability of the derrick in the inclined operation state is enhanced, the operation area of a well site and the labor intensity of operators are greatly increased.
The existing workover rig derrick assembly not only has complex structure, heavy weight and large operation area of a well site, but also has huge overturning danger, and seriously threatens the personal safety of operators.
The invention content is as follows:
the invention aims to solve the technical problem of providing a workover rig vertical derrick structure assembly, which realizes the operation states of the workover rig vertical derrick without guy wires, optimizes the stress state of the derrick, further increases the stability of the derrick during workover operation, improves the operation safety, simplifies the structure of the workover rig derrick assembly, reduces the overall weight of the workover rig derrick assembly, cancels inner and outer guy wires, and greatly reduces the operation area of a well field. The derrick assembly overcomes the defects that the existing workover rig derrick assembly is complex in structure, heavy in weight, large in well site operation area, huge in overturning danger and seriously threatens the personal safety of operators.
The technical scheme adopted by the invention is as follows: a workover rig vertical derrick structure assembly comprises a propeller strut; the propeller strut bottom sets up on the base basis, the propeller strut middle part is equipped with flexible hydraulic cylinder, the propeller strut upper end sets up upright derrick, upright derrick top sets up rotatory overhead traveling crane, the back support vertical welding is on the chassis car, the ear seat on the back support, propeller strut upper end left side ear seat, upright derrick bottom left side ear seat is in the same place through the round pin hub connection, propeller strut upper end right side ear seat is through the round pin hub connection with upright derrick bottom right side ear seat, the back support upper end is through the round pin hub connection pull rod, the pull rod upper end is connected with upright derrick through the round pin axle, it is connected with chassis car pin hub connection to play to rise hydraulic cylinder lower extreme, play to rise hydraulic cylinder upper end and upright.
The rotating crown block can rotate 90 degrees.
The pull rod adopts a telescopic cylinder structure, and a cylinder body of the telescopic cylinder structure is provided with a pneumatic control valve.
The invention has the beneficial effects that: the invention realizes the operation state of the workover rig frame which is upright and has no guy rope, optimizes the stress state of the derrick, further increases the stability of the derrick during workover operation, improves the operation safety, simplifies the structure of the workover rig frame assembly, reduces the whole weight of the workover rig frame assembly, cancels the inner guy rope and the outer guy rope, and greatly reduces the operation area of a well field.
Description of the drawings:
the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural diagram of the present invention.
The specific implementation mode is as follows:
as shown in fig. 1, a workover rig vertical derrick structure assembly comprises a man-like trestle 7; the bottom end of a propeller strut 7 is arranged on a base foundation 8, a telescopic hydraulic cylinder is arranged in the middle of the propeller strut 7, an upright derrick 2 is arranged at the upper end of the propeller strut 7, a rotating crown block 1 is arranged at the top end of the upright derrick 2, a rear support 4 is vertically welded on a chassis 6, an ear seat on the rear support 4, an ear seat on the left side of the upper end of the propeller strut 7 and an ear seat on the left side of the lower end of the propeller strut 2 are connected together through a pin shaft, an ear seat on the right side of the upper end of the propeller strut 7 is connected with an ear seat on the right side of the bottom end of the upright derrick 2 through a pin shaft, the upper end of the rear support 4 is connected with a pull rod 3 through a pin shaft, the upper end of the pull rod 3 is connected with the upright derrick.
The rotating crown block 1 can rotate 90 °. The rotating overhead traveling crane 1 can rotate 90 degrees in the operation state and the transportation state, and the problem of superelevation in the transportation state is solved.
The pull rod 3 adopts a telescopic cylinder structure, and a cylinder body of the telescopic cylinder structure is provided with a pneumatic control valve.
In the installation process, the rear support 4 is welded on the chassis 6, and the left ear seat at the bottom end of the vertical derrick 2 and the left ear seat at the upper end of the propeller strut 7 are connected with the ear seats of the rear support 4 by using pin shafts. At this time, the front end of the vertical derrick 2 is supported on the front bracket, and the rear end is supported on the rear support 4, and is in a horizontal state.
In the lifting process, after the workover rig is in place, the positions of the chassis truck 6 and the base foundation 8 are adjusted, the rotating crown block 1 is rotated by 90 degrees, the upright derrick 2 is lifted to a vertical state through the lifting hydraulic cylinder 5, the right ear seat at the bottom end of the upright derrick 2 is connected with the right ear seat at the upper end of the propeller strut 7 through a pin shaft, the height of the telescopic hydraulic cylinder on the propeller strut 7 is adjusted at the same time, and the length of the pull rod 3 is adjusted through a pneumatic control valve, so that the upright derrick 2 is ensured to be in the vertical state.
During workover operation, the vertical derrick 2 is in a vertical state, an inner guy rope and an outer guy rope are omitted, the stress state is optimized, and the operation stability is improved.
It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can be modified or substituted equally to achieve the same technical effects; as long as the use requirements are met, the method is within the protection scope of the invention.
Claims (3)
1. A workover rig vertical derrick structure assembly comprises a propeller strut (7); the method is characterized in that: the bottom end of the A-bracket (7) is arranged on the base foundation (8), the middle part of the A-bracket (7) is provided with a telescopic hydraulic cylinder, the upper end of the A-bracket (7) is provided with an upright derrick (2), the top end of the upright derrick (2) is provided with a rotating crown block (1), a rear support (4) is vertically welded on a chassis block (6), an ear seat on the rear support (4) and an ear seat on the left side of the upper end of the A-bracket (7), upright derrick (2) bottom left side ear seat links together through the round pin hub connection, propeller strut (7) upper end right side ear seat and upright derrick (2) bottom right side ear seat through the round pin hub connection, back support (4) upper end is through round pin hub connection pull rod (3), pull rod (3) upper end is connected with upright derrick (2) through the round pin axle, plays to rise hydraulic cylinder (5) lower extreme and chassis (6) pin hub connection, plays to rise hydraulic cylinder (5) upper end and upright derrick (2) pin hub connection.
2. The workover rig vertical derrick structure assembly of claim 1, wherein: the rotating crown block (1) can rotate for 90 degrees.
3. The workover rig vertical derrick structure assembly of claim 1, wherein: the pull rod (3) adopts a telescopic cylinder structure, and a cylinder body of the telescopic cylinder structure is provided with a pneumatic control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010912464.5A CN112031668A (en) | 2020-09-02 | 2020-09-02 | Workover rig vertical derrick structure assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010912464.5A CN112031668A (en) | 2020-09-02 | 2020-09-02 | Workover rig vertical derrick structure assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112031668A true CN112031668A (en) | 2020-12-04 |
Family
ID=73590592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010912464.5A Pending CN112031668A (en) | 2020-09-02 | 2020-09-02 | Workover rig vertical derrick structure assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112031668A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113294100A (en) * | 2020-12-22 | 2021-08-24 | 四川宏华石油设备有限公司 | Workover rig |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201056986Y (en) * | 2007-07-04 | 2008-05-07 | 吉林石油集团有限责任公司 | Non-decompressing workover rig for water injection well |
| CN201714308U (en) * | 2010-04-26 | 2011-01-19 | 中原特种车辆有限公司 | Turnover type drilling platform |
| CN202659161U (en) * | 2012-07-24 | 2013-01-09 | 通化石油化工机械制造有限责任公司 | Self-travelling anchor rope-free workover rig |
| CN103806850A (en) * | 2014-01-26 | 2014-05-21 | 中国石油集团西部钻探工程有限公司 | Separating workover rig and use method thereof |
| CN207092988U (en) * | 2017-08-18 | 2018-03-13 | 通化石油化工机械制造有限责任公司 | Twin-roll combined sand-washing well repairing machine |
| CN208830909U (en) * | 2018-09-05 | 2019-05-07 | 通化石油化工机械制造有限责任公司 | Multifunctional straight vertical derrick |
| US20200018123A1 (en) * | 2018-07-13 | 2020-01-16 | James C. Evans | Apparatus and methods for moving workover rigs |
-
2020
- 2020-09-02 CN CN202010912464.5A patent/CN112031668A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201056986Y (en) * | 2007-07-04 | 2008-05-07 | 吉林石油集团有限责任公司 | Non-decompressing workover rig for water injection well |
| CN201714308U (en) * | 2010-04-26 | 2011-01-19 | 中原特种车辆有限公司 | Turnover type drilling platform |
| CN202659161U (en) * | 2012-07-24 | 2013-01-09 | 通化石油化工机械制造有限责任公司 | Self-travelling anchor rope-free workover rig |
| CN103806850A (en) * | 2014-01-26 | 2014-05-21 | 中国石油集团西部钻探工程有限公司 | Separating workover rig and use method thereof |
| CN207092988U (en) * | 2017-08-18 | 2018-03-13 | 通化石油化工机械制造有限责任公司 | Twin-roll combined sand-washing well repairing machine |
| US20200018123A1 (en) * | 2018-07-13 | 2020-01-16 | James C. Evans | Apparatus and methods for moving workover rigs |
| CN208830909U (en) * | 2018-09-05 | 2019-05-07 | 通化石油化工机械制造有限责任公司 | Multifunctional straight vertical derrick |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113294100A (en) * | 2020-12-22 | 2021-08-24 | 四川宏华石油设备有限公司 | Workover rig |
| CN113294100B (en) * | 2020-12-22 | 2022-07-26 | 四川宏华石油设备有限公司 | Workover rig |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201204 |
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| RJ01 | Rejection of invention patent application after publication |