CN117884840A - Manufacturing method of K-type derrick of high-position backward folding type petroleum drilling machine - Google Patents
Manufacturing method of K-type derrick of high-position backward folding type petroleum drilling machine Download PDFInfo
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- CN117884840A CN117884840A CN202211226291.7A CN202211226291A CN117884840A CN 117884840 A CN117884840 A CN 117884840A CN 202211226291 A CN202211226291 A CN 202211226291A CN 117884840 A CN117884840 A CN 117884840A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 238000005553 drilling Methods 0.000 title claims abstract description 11
- 239000003208 petroleum Substances 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 23
- 238000003466 welding Methods 0.000 claims abstract description 14
- 238000009434 installation Methods 0.000 claims abstract description 8
- 238000003754 machining Methods 0.000 claims description 6
- 238000004088 simulation Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The invention discloses a manufacturing method of a K-shaped derrick of a high-position backward folding type petroleum drilling machine, wherein one section at the uppermost end of the derrick adopts an integral welding truss structure, a rotating lug plate hole at a backward folding position is integrally processed, the other sections of the derrick are manufactured by adopting the existing method, and a connecting frame, a back cross beam and an inclined strut which are connected between the left section and the right section are separately manufactured; connecting all sections of the manufactured derrick through a tool support, and horizontally mounting and connecting all sections of the derrick in sequence from bottom to top; and (3) taking the processed uppermost section as a reference, welding the connecting lug plates of the connected section, detecting the relevant size, and properly adjusting, and assembling the diagonal braces and the connecting frames connected with the left and right sections after the requirements are met. Thus, the horizontal installation is used for replacing the vertical installation, and the manufacture of the derrick is completed. The method has the advantages of convenient operation, safety, reliability and high efficiency, and can meet the requirement of product manufacturing precision.
Description
Technical Field
The invention belongs to the technical field of manufacturing of oil rig derricks, and relates to a manufacturing method of a high-position backward folding type oil rig K-shaped derrick.
Background
The oil rig derrick is stressed in the drilling operation in complex, so the requirement on the manufacturing quality of the derrick is higher. The K-shaped derrick main body is generally 4-5 sections of welded truss structural members (about 10 pieces on the left and right sides), each member is about 10m long and 2-3 m wide, and the total length of the derrick after connection is about 40-50 m. All the parts are connected through pin shaft ear plates, and the left side and the right side are connected through stay bars, back cross beams and connecting frames through pin shaft ear plates. And all the components of the derrick are assembled and connected into a whole, and the lowermost supporting leg is taken as a rotating point for integrally rotating and lifting. After lifting (in an upright state), the center of a wellhead of the derrick, the integral straightness and the perpendicularity of the upright post serving as a main bearing piece are required to be guaranteed, and the high-position backward folding derrick is folded backward by 90 degrees in a section of the uppermost end of the derrick after integral lifting in the upright state due to the operation requirement. Because the overall size is larger after the derrick is connected, the relevant size cannot be detected by vertical installation during workshop on-site manufacturing. How to use the existing conditions to realize the manufacture of the derrick so as to ensure that the derrick is lifted smoothly, the relevant size after lifting meets the requirements, and the realization of the smooth backward folding of the uppermost section by 90 degrees in an upright state after lifting is an urgent problem to be solved.
Disclosure of Invention
The invention aims to provide a manufacturing method of a high-position backward folding type K-shaped derrick, which not only can ensure that the whole assembled and connected derrick is lifted smoothly, the whole straightness, the verticality and the wellhead center of a lifted derrick upright post meet the requirements, but also can ensure that the uppermost section of the whole lifted derrick can be folded backward by 90 degrees.
The technical scheme adopted by the invention is as follows:
the manufacturing method of the K-type derrick of the high-position backward folding type petroleum drilling machine is implemented according to the following steps:
step 1, manufacturing the uppermost section of the derrick, welding an uppermost section connecting lug plate with the uppermost section, and machining an uppermost section connecting lug plate hole by a machining method;
manufacturing a lower-most section of the derrick, a section connected with the upper-most section, the rest sections of the derrick, a connecting frame, a back cross beam and an inclined strut; the lower end section of the derrick, the section connected with the upper end section and the connecting lug plates and holes among the other sections are independently processed, and the lug plates are welded with the sections of the derrick;
step 2, fixing a tool support which is connected with the lowest section of the derrick when the simulation derrick works on an ant platform, and enabling the gear opening size and the hole coaxiality error of the tool support to meet preset requirements;
step 3, horizontally installing the lowest section of the derrick manufactured in the step 1 in the fixed tool support in the step 2; the rest sections of the derrick and the section connected with the uppermost section are horizontally assembled and connected from bottom to top in sequence, and a back cross beam between the left side and the right side is assembled and connected;
step 4, taking the hole of the integrally processed uppermost section connecting lug plate in the step 1 as a reference, connecting the uppermost section connecting lug plate with the lug plate connected with the uppermost section through a pin shaft, then assembling the lug plate connected with the uppermost section, and welding the lug plate connected with the uppermost section with the section connected with the uppermost section assembled in the step 3;
step 5, detecting the derrick connected in the step 4, and matching a connecting frame and an inclined strut which are connected between the left side and the right side of the assembly welding after the derrick is detected to be qualified;
and 6, assembling and welding accessories connected with the derrick, namely finishing the assembly of all the parts of the derrick in a horizontal assembly state.
The invention is also characterized in that:
and (3) the coaxiality error of the two uppermost-end section connecting lug holes processed in the step (1) is less than or equal to 0.5mm.
And 2, the requirement on the gear opening size and the hole coaxiality error of the tool support in the step is less than or equal to 1mm.
And 3, after the lowest section of the derrick is horizontally installed, detecting the dimension error and the symmetry error of the left section and the right section, ensuring that the dimension error of the gear is less than or equal to 1mm, and if the dimension error of the gear is less than or equal to 1mm, readjusting the installation position until the dimension error of the gear meets the requirement, and then carrying out the subsequent steps.
The detection requirements on the derrick in the step 5 comprise: the straightness of the whole derrick is less than or equal to 5mm, the gear opening dimension error is less than or equal to 1mm, the variance of the left and right sides corresponding to each section is less than or equal to 5mm, the overall variance of the left and right sides is less than or equal to 5mm, and the centering of the whole derrick is less than or equal to 5mm.
The beneficial effects of the invention are as follows:
according to the method, after each section of the derrick is independently processed, the horizontal installation is used for replacing the vertical installation, each section of the derrick is connected in the horizontal installation state, and meanwhile, the integrally processed uppermost section is used as a reference to be assembled and welded with the connected section, so that the coaxiality of the lug holes of the rotary joint during backward folding is ensured, and the uppermost section can be smoothly folded by 90 degrees. Meanwhile, the relevant size of the derrick is detected in the assembly process, and inclined stay bars and the like connected with the left side and the right side of the derrick are assembled and welded, so that the integral connection of all sections of the derrick is realized, and the derrick meets the process requirements after being assembled vertically. The method has the characteristics of simple operation, safety, reliability, high working efficiency, low production and manufacturing cost, low requirements on personnel quality and capability of meeting the product quality requirements.
Drawings
FIG. 1 is a schematic diagram of the structure of a derrick in a horizontal state in the method of the invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic view of the structure of the derrick in its upright position in the method of the invention;
FIG. 4 is a schematic view of the structure of the derrick in the method of the invention in a vertically folded state;
FIG. 5 is a schematic view of the structure of the uppermost section of the derrick in the method of the invention;
FIG. 6 is a top view of FIG. 5;
FIG. 7 is a schematic view of the structure of the section of the derrick connected to the uppermost section in the method of the invention;
fig. 8 is a top view of fig. 7.
In the figure, the top section 1, the top section 2, the ear plate, the bottom section 3, the rest sections 5, the connecting frame 6, the back cross beam 7, the diagonal brace, the tool support 8, the ant platform 9, the ear plate connected with the top section 10, and the section connected with the top section 11.
Detailed Description
The invention will be described in detail below with reference to the drawings and the detailed description.
The method adopts the tool support to connect all sections of the manufactured derrick through the simulation derrick when the derrick is assembled vertically, all sections of the derrick are sequentially connected from bottom to top, diagonal braces, connecting frames and the like connected between the left side and the right side are assembled, relevant sizes are detected, and the horizontal assembly is used for replacing the vertical assembly, so that the manufacturing of the derrick is completed.
The method specifically comprises the following steps:
step 1, independently manufacturing the uppermost section 1 of the derrick, welding the uppermost section connecting lug plate 2 and the uppermost section 1 into a whole, and then machining the holes of the uppermost section connecting lug plate 2 by a machining method to ensure that the coaxiality error of the two lug plate holes is less than or equal to 0.5mm;
the method comprises the steps of independently manufacturing and completing the lowest section 3, the section 11 connected with the highest section, the rest sections 4, the connecting frame 5, the back cross beam 6 and the diagonal brace 7 of the derrick; the lower-most section 3, the section 11 connected with the upper-most section and the connecting lug plates and holes among the other sections 4 of the derrick are independently processed and welded with the sections of the derrick; the uppermost section 1 of the derrick and the lug plate 10 connected with the uppermost section are temporarily not welded;
step 2, fixing a tool support 8 connected with the lowest section 3 of the derrick on an ant platform 9 when the simulation derrick works, and enabling the open gear size and the hole coaxiality error of the tool support 8 to be less than or equal to 1mm;
step 3, horizontally installing the lowest section 3 of the derrick manufactured in the step 1 in the fixed tool support 8 in the step 2; detecting the left and right section gear opening size errors and symmetry errors, ensuring that the gear opening size errors are less than or equal to 1mm, and the symmetry errors are less than or equal to 1mm, and readjusting the mounting positions if the gear opening size errors are not in accordance with the requirements, and performing subsequent steps until the gear opening size errors are in accordance with the requirements;
the rest sections 4 of the connecting derrick and the section 11 connected with the uppermost section are horizontally assembled and connected from bottom to top in sequence, and the back cross beam 6 between the left side and the right side is assembled and connected;
step 4, taking the hole of the integrally processed uppermost section connecting lug plate 2 in the step 1 as a reference, connecting the uppermost section connecting lug plate 2 with the lug plate 10 connected with the uppermost section through a pin shaft, then connecting the uppermost section 1 of the derrick with the section 11 assembled in the step 3 and connected with the uppermost section, namely firstly assembling the lug plate 10 connected with the uppermost section, and then welding the lug plate 10 connected with the uppermost section with the section 11 connected with the uppermost section;
and 5, detecting the well connected derricks in the step 4, wherein the straightness of the whole derrick is less than or equal to 5mm, the dimension error of a gear opening is less than or equal to 1mm, the variance of the corresponding sections at the left side and the right side is less than or equal to 5mm, the variance of the whole left and right sides is less than or equal to 5mm, and the centering of the whole derrick is less than or equal to 5mm. After the detection is qualified, the left side and the right side of the assembly welding are matched with a connecting frame 5 and an inclined strut 7 which are connected;
and 6, in the state, assembling and welding accessories connected with the derrick, namely, completing the assembly of all parts of the derrick in the horizontal assembly state.
Through practical production and use verification, the K-shaped derrick of the petroleum drilling machine prepared by the method can ensure that the lug holes of the rotating points are coaxial when the uppermost section of the derrick is folded backwards, so that the 90-degree backward folding of the uppermost section of the derrick is smoothly realized, and the center of the wellhead, the integral straightness and the perpendicularity of the upright post serving as a main bearing piece meet the process requirements when the derrick is in an upright state.
Claims (5)
1. The manufacturing method of the K-type derrick of the high-position backward folding type petroleum drilling machine is characterized by comprising the following steps of:
step 1, manufacturing the uppermost section (1) of the derrick, welding the uppermost section connecting lug plate (2) with the uppermost section (1), and machining holes of the uppermost section connecting lug plate (2) by a machining method;
the manufacturing of the lowest section (3) of the derrick, the section (11) connected with the highest section, the rest sections (4) of the derrick, the connecting frame (5), the back cross beam (6) and the diagonal brace (7) is completed; the lower end section (3), the section (11) connected with the upper end section and the connecting lug plates and holes among the rest sections (4) of the derrick are independently processed, and the lug plates and the sections of the derrick are welded;
step 2, fixing a tool support (8) connected with the lowest section (3) of the derrick on an ant platform (9) when the simulation derrick works, and enabling the gear opening size and the hole coaxiality error of the tool support (8) to meet preset requirements;
step 3, horizontally installing the lowest end section (3) of the derrick manufactured in the step 1 in the fixed tool support (8) in the step 2; the rest sections (4) of the derrick and the section (11) connected with the uppermost section are horizontally assembled and connected from bottom to top in sequence, and the back cross beam (6) between the left side and the right side is assembled and connected;
step 4, taking the hole of the integrally processed uppermost section connecting lug plate (2) in the step 1 as a reference, connecting the uppermost section connecting lug plate (2) with the lug plate (10) connected with the uppermost section through a pin shaft, then assembling the lug plate (10) connected with the uppermost section, and welding the lug plate (10) connected with the uppermost section with the section (11) connected with the uppermost section assembled in the step 3;
step 5, detecting the derrick connected in the step 4, and matching a connecting frame (5) and an inclined strut (7) which are connected between the left side and the right side of the assembly welding after the derrick is detected to be qualified;
and 6, assembling and welding accessories connected with the derrick, namely finishing the assembly of all the parts of the derrick in a horizontal assembly state.
2. The method for manufacturing the K-type derrick of the high-position backward folding type petroleum drilling machine, which is disclosed in claim 1, is characterized in that the coaxiality error of the holes of the two uppermost-section connecting lug plates (2) processed in the step 1 is less than or equal to 0.5mm.
3. The method for manufacturing the K-type derrick of the high-position backward folding type petroleum drilling machine, which is disclosed by the claim 1, is characterized in that the requirements on the gear opening size and the hole coaxiality error of the tool support (8) in the step 2 are less than or equal to 1mm.
4. The method for manufacturing the K-type derrick of the high-position backward folding type petroleum drilling machine according to claim 1, wherein in the step 3, after the lowest section (3) of the derrick is horizontally installed, the dimension error and the symmetry error of the left section and the right section are detected, the dimension error of the open gear is less than or equal to 1mm, the symmetry error is less than or equal to 1mm, and if the dimension error is not in accordance with the requirement, the installation position is readjusted until the requirement is met, and then the subsequent step is carried out.
5. The method for manufacturing the K-type derrick of the high-position backward folding type petroleum drilling machine, according to claim 1, wherein the detection requirements on the derrick in the step 5 comprise the following steps: the straightness of the whole derrick is less than or equal to 5mm, the gear opening dimension error is less than or equal to 1mm, the variance of the left and right sides corresponding to each section is less than or equal to 5mm, the overall variance of the left and right sides is less than or equal to 5mm, and the centering of the whole derrick is less than or equal to 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211226291.7A CN117884840A (en) | 2022-10-09 | 2022-10-09 | Manufacturing method of K-type derrick of high-position backward folding type petroleum drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211226291.7A CN117884840A (en) | 2022-10-09 | 2022-10-09 | Manufacturing method of K-type derrick of high-position backward folding type petroleum drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117884840A true CN117884840A (en) | 2024-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211226291.7A Pending CN117884840A (en) | 2022-10-09 | 2022-10-09 | Manufacturing method of K-type derrick of high-position backward folding type petroleum drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117884840A (en) |
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2022
- 2022-10-09 CN CN202211226291.7A patent/CN117884840A/en active Pending
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