Combination tool and combination method for achieving multi-connector interchange of petroleum drilling machine dragging pry

Abstract

The invention discloses a combined tool for realizing multi-connector interchange of a petroleum drilling machine dragging pry, which comprises a cuboid frame type frame body, four single-lug plates are arranged on one side surface of the frame body, four groups of double-lug plates are arranged on the opposite side surface of the frame body, each double-lug plate is composed of two symmetrically arranged single-lug plates, bottom plates are arranged at four corners of the bottom of the frame body, and the single-lug plates are arranged on the bottom of the frame body. Hoisting pipes are arranged on the two sides of the upper end. The invention further discloses a combination method for combining the lug seat and the lug plate by using the combination tool, the tool is used as a template to match and combine the end lug seat and the gooseneck lug plate of the dragging pry, and detection after welding is carried out. According to the combined tool and method, the problems that in the prior art, the combination precision of lug bases at the ends of a dragging pry is low, and the interchangeability of the dragging pry is not high are solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of oil drilling equipment manufacturing, and relates to a combined tool for realizing the interchange of multiple connectors of an oil drilling rig skid. The present invention also relates to a method for combining ears and seats using the tool. Background Art

[0002] To enable rapid movement of oil drilling rigs, existing designs utilize a skid-mounted transport method. This involves integrating various functional equipment onto a skid to form a separate, trailer-powered transport module. This skid is typically wheeled, with connectors at each end of the skid connected to goosenecks for transport. A drilling rig typically includes various skid-mounted modules, including a mud skid transport module, an electronically controlled skid transport module, and a manifold skid transport module. The goosenecks and trailers are universal, typically consisting of four goosenecks per set, with five rigs sharing one. The trailer is allocated based on actual transport needs.

[0003] Various skid transport modules are important components of the drilling process, with functions such as mud circulation and wellhead control. When working, the skid transport modules need to be connected horizontally to form an integral module. When transporting over short distances, only the peripheral connectors of the integral module need to be removed and the entire module can be transported as a whole. When transporting over long distances, in order to obtain good passability and fast moving speed, it is generally transported as a single skid transport module, or it can be transported as a whole when the passability area is good (such as Figure 1-4 shown).

[0004] The skid body is a large welded structure. The length, width and height dimensions of a single skid are generally 20,000mm × 2,650mm × 2,000mm. Due to the requirements of the transport direction, connectors are provided at both the front and rear ends of the skid body (the front and rear ends are the same), and they must be smoothly connected to the gooseneck connectors in the wheeled transport system. Since the gooseneck is a universal device, each gooseneck can not only be connected to each independent skid transport module, but also to the connectors at different parts of the skid transport module after it is connected to form an integral module (such as Figures 1 to 4As shown), the connectors at various locations on the skid structure need to have a high degree of interchangeability, and the connectors of each gooseneck also need to maintain a high degree of consistency. The two ears (i.e., connectors, the same below) at the end of the skid form a unit, and the shape and position tolerances between the ears in the same unit are crucial. Among them, the spacing between the ears in the same unit, the parallelism between the ears, the symmetry between the ears and the center of the frame in the same group, and other factors will affect the smooth installation of the skid and the connecting parts; and, after the multiple skids are assembled, the size will be larger, and the ear seat holes for the connectors cannot be processed as a whole. If the ear seat holes for the connectors of a single skid are processed as a whole, due to the large size of the skid, super-large special processing equipment is required, which is difficult and costly. Moreover, when multiple skids are connected to each other, it is not necessarily guaranteed that the ears on different skids can be smoothly connected to the gooseneck. Therefore, it is urgent to design a new process method to overcome the above-mentioned shortcomings. Summary of the Invention

[0005] An object of the present invention is to provide a combination tooling for realizing the interchange of multiple connectors of an oil drilling rig skid. Another object of the present invention is to provide a method for combining ears and seats using the above-mentioned tooling. The combination tooling and method solve the problems in the prior art of low assembly precision of ears and seats at the end of the skid and low interchangeability of the skid.

[0006] The technical solution adopted by the present invention is to realize the combined tooling of the oil drilling rig skid with multiple connector interchangeable, including a rectangular frame-type frame, one side of the frame is provided with four single-ear plates, and the opposite side is provided with four groups of double-ear plates, the double-ear plates are composed of two symmetrically arranged single-ear plates, bottom plates are provided at the four corners of the bottom of the frame, and lifting pipes are provided on both sides of the upper end.

[0007] The present invention is also characterized in that:

[0008] The four single-ear plates are arranged symmetrically with the center line A of the tooling frame as the reference.

[0009] The four sets of double-ear plates are arranged symmetrically with the center line A of the tooling frame as the reference.

[0010] The hole diameters of the pin holes of the single-ear plate and double-ear plate are consistent with the hole diameters of the pin holes of the skid ear seat, gooseneck upper ear plate, and gooseneck lower ear plate.

[0011] The hole spacing between the two single-ear plates on the same side and the hole spacing between the two sets of double-ear plates on the same side are consistent with the hole spacing of the skid lugs.

[0012] The thickness of the single ear plate is consistent with that of the gooseneck upper ear plate and the gooseneck lower ear plate; the inner opening size of the double ear plate is consistent with the inner opening size of the skid ear seat.

[0013] Another technical solution adopted by the present invention is a combination method for achieving interchangeable multiple connectors on an oil drilling rig skid, using the above-mentioned combination tooling as a template to assemble the skid end lugs and gooseneck lugs, and performing post-welding inspection, including: connecting two single lugs on the same side of the combination tooling to two pre-machined lugs, respectively, and then combining the entire assembly with skid I. Welding is performed in this combined state, and then combining the lugs of the adjacent skid II using the welded lugs, completing the combination of all skid lugs according to this method; and assembling two sets of double lugs on the same side of the combination tooling to the upper and lower lugs of the gooseneck, respectively, and then combining the entire assembly with the gooseneck frame, and welding is performed in this combined state, thus completing the combination of the gooseneck lugs.

[0014] Another technical solution of the present invention is also characterized in that:

[0015] The skid end lugs are assembled according to the following steps:

[0016] Step 1: Make each skid frame and end connecting lugs, leaving margins at both ends of the skid frame in the length direction, and process the pin holes of the lugs;

[0017] Step 2: Place the skids in parallel on a rigid platform, assemble them into a whole with connecting frames, and then draw the cutting line of the entire skid to remove the excess length of each skid;

[0018] Step 3: Use pins to assemble the two ear mounts to the two single ear plates on the same side of the tooling. Add process gaskets to the gaps between the single ear plates and the ear mounts to keep the gaps between 0.5mm and 1mm. Then, assemble the entire tooling with skid I so that the centerline A of the tooling coincides with the centerline B of the skid I, and the ear mounts are in contact with the end faces of skid I.

[0019] Step 4: In the assembled state of step 3, weld the connecting weld between the ear seat and the skid 1. After welding, remove the tooling, and the assembly of the ear seat and the skid 1 is completed.

[0020] Step 5: Use a pin to assemble an ear seat to the single ear plate of the tooling. Add process gaskets on both sides of the single ear plate and the ear seat to control the gap between 0.5mm and 1mm. Then assemble the whole with the adjacent skid II. Use a pin to connect the other single ear plate of the tooling to the ear seat welded at the end of skid I, taking into account that the center line A of the tooling frame coincides with the center line C of the connecting frame, and the ear seat is in contact with the end face of skid II.

[0021] Step 6: In the assembled state of step 5, weld the connecting weld between the ear seat and the skid II. After welding, remove the tooling to complete the assembly of the ear seat on the skid II side.

[0022] Step 7: According to the methods of steps 5 and 6, assemble and weld the remaining adjacent skid lugs in sequence;

[0023] Step 8: Use the single ear plate of the tooling to install and test the ear seat of each skid in turn. If it can be installed smoothly, the skid assembly welding is qualified.

[0024] The gooseneck ear plate is assembled according to the following steps:

[0025] Use pins to assemble the upper ear plate and the lower ear plate to the two sets of double ear plates on the same side of the tooling. Add process gaskets in the gaps between the upper ear plate, the lower ear plate and the double ear plates, and combine the whole with the gooseneck frame so that the center line A of the tooling frame coincides with the center line D of the gooseneck frame, and the end faces of the upper ear plate, the lower ear plate and the gooseneck frame fit together. Then, in this combined state, weld the connecting welds between the upper ear plate, the lower ear plate and the gooseneck frame, and remove the tooling after welding. Use the double ear plates of the tooling to install and inspect the upper ear plate and lower ear plate of each gooseneck. If they can be installed smoothly, the gooseneck assembly welding is qualified.

[0026] The beneficial effects of the present invention are:

[0027] The method of the present invention marks and cuts the entire skid, so that the ear seat and the frame fit tightly and the welding deformation is smaller; the dedicated combined tooling processed as a whole is used as a template to assemble or test the end ear seats of the skid and the gooseneck, thereby realizing the multi-connector assembly of oversized structural parts or assembly parts, realizing the interchangeability and testing of multiple connectors of the skid, improving the ear seat assembly accuracy, reducing the manufacturing difficulty, and improving the connection interchangeability between the skid connectors. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the connection between the skid body and the gooseneck of an oil drilling rig in the prior art;

[0029] Figure 2 This is a schematic diagram of the gooseneck parallel connection method;

[0030] Figure 3 This is a schematic diagram of the connection between the gooseneck and the middle part of the skid;

[0031] Figure 4 It is a schematic diagram of the connection between the gooseneck and a single skid;

[0032] Figure 5 It is a structural schematic diagram of the combined tooling of the present invention;

[0033] Figure 6 yes Figure 5 A top view of

[0034] Figure 7 It is a structural diagram of a skid ear seat in the prior art;

[0035] Figure 8 yes Figure 7 Left view of;

[0036] Figure 9 This is a schematic diagram of the combination of the skid lugs in the method of the present invention. Figure 1 ;

[0037] Figure 10 This is a schematic diagram of the combination of the skid lugs in the method of the present invention. Figure 2 ;

[0038] Figure 11 Schematic diagram of the combination of gooseneck ear plates in the method of the present invention;

[0039] Figure 12 yes Figure 11 Top view of .

[0040] In the figure, 1. frame, 2. bottom plate, 3. single ear plate, 4. double ear plate, 5. lifting pipe, 6. skid I, 7. ear seat, 8. skid II, 9. gooseneck frame, 10. upper ear plate, 11. lower ear plate, 12. connecting frame. DETAILED DESCRIPTION

[0041] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0042] Example 1

[0043] The present invention realizes the combined tooling for exchanging multiple connectors of oil drilling rig skid, and the structure is as follows Figure 5 and Figure 6 As shown, it includes a rectangular frame-type frame 1, four single-ear plates 3 are provided on one side of the frame 1, and four groups of double-ear plates 4 are provided on the opposite side. The double-ear plates 4 are composed of two symmetrically arranged single-ear plates. Bottom plates 2 are provided at the four corners of the bottom of the frame 1, and hanging pipes 5 are provided on both sides of the upper end.

[0044] Example 2

[0045] Based on Example 1, four single-ear plates 3 are symmetrically arranged around the centerline A of the tooling frame. Four sets of double-ear plates 4 are symmetrically arranged around the centerline A of the tooling frame. The pinhole diameters of the single-ear plates 3 and double-ear plates 4 are consistent with the pinhole diameters of the skid lugs 7, gooseneck upper lug plate 10, and gooseneck lower lug plate 11.

[0046] Example 3

[0047] The present invention realizes the combined tooling for interchange of multiple connectors of oil drilling rig skid, which is a unified template for the combination or detection process of lugs in various parts. Figure 5 and Figure 6As shown, it includes a rectangular frame-type frame 1, and four single-ear plates 3 are provided on one side of the frame 1, and the four single-ear plates 3 are symmetrically arranged with the center line A of the tooling frame as the reference; its opposite side is provided with four groups of double-ear plates 4, and the double-ear plates 4 are composed of two symmetrically arranged single-ear plates, and the four groups of double-ear plates 4 are symmetrically arranged with the center line A of the tooling frame as the reference; the aperture size of the pin holes of the single-ear plates 3 and the double-ear plates 4 is consistent with the aperture size of the pin holes of the skid ear seat 7, the gooseneck upper ear plate 10, and the gooseneck lower ear plate 11; the hole spacing size between the two single-ear plates 3 on the same side and the hole spacing size between the two groups of double-ear plates 4 on the same side are consistent with the hole spacing size of the ear seat 7; the thickness m of each single-ear plate 3 is consistent with the thickness of the upper ear plate 10 and the lower ear plate 11; the inner opening size n of each group of double-ear plates 4 is consistent with the inner opening size of the ear seat 7.

[0048] Bottom plates 2 are provided at the four corners of the bottom of the frame 1, and hanging pipes 5 are provided on both sides of the upper end of the frame 1.

[0049] After the combined tooling is assembled and welded, the thickness of the bottom plate 2 is processed as a whole. Then, based on the processed bottom surface of the bottom plate 2, the pin hole of the single ear plate 3 and its two outer side thickness dimensions, and the pin hole of the double ear plate 4 and its inner side opening dimensions are processed, so that the hole diameter, hole spacing, opening dimensions, etc. of the single ear plate 3 and the double ear plate 4 meet the requirements, and the single ear plate 3 and the double ear plate 4 are both perpendicular to the bottom surface.

[0050] The present invention realizes an assembly method for interchangeable multiple connectors of a petroleum drilling rig skid. The assembly tool described above is used as a template to assemble the skid end lugs and gooseneck lugs, and then conducts post-weld inspection. The assembly steps of the skid lugs 7 are as follows:

[0051] Step 1: Use existing conventional methods to make each skid frame and end connecting ear seat 7 (structure as shown in the figure) Figure 7 、 Figure 8 As shown), allowances are left at both ends of the skid frame in the length direction, and the pin holes of the ear seats 7 are processed;

[0052] Step 2: Place the skids in parallel on a rigid platform, assemble the connecting frames 12 between them to connect them into a whole, and then draw a cutting line on the entire skid to remove the excess length of each skid;

[0053] Step 3: Figure 9 As shown, two ear seats 7 are assembled to two single ear plates 3 on the same side of the tooling using pins. Process gaskets are added to the gaps on both sides of the single ear plates 3 and the ear seats 7 to control the gaps between them to be between 0.5mm and 1mm. The whole is then assembled with the skid Ⅰ 6 so that the center line A of the tooling frame coincides with the center line B of the skid Ⅰ 6, and the ear seats 7 are in contact with the end faces of the skid Ⅰ 6.

[0054] Step 4: In the assembled state of step 3, weld the connecting welds between the ear seat 7 and the skid Ⅰ 6 (except the bottom weld which cannot be welded). After welding, remove the tooling, and the assembly of the ear seat 7 and the skid Ⅰ 6 is completed.

[0055] Step 5: Figure 10 As shown, a lug seat 7 is assembled to the single lug plate 3 of the tooling with a pin, and process gaskets are added to the gaps on both sides of the single lug plate 3 and the lug seat 7 to control the gap between 0.5mm and 1mm. Then the whole is assembled with the adjacent skid II 8, and the other single lug plate 3 of the tooling is connected to the lug seat 7 welded to the end of the skid I 6 with a pin, taking into account that the center line A of the tooling frame coincides with the center line C of the connecting frame 12, and the lug seat 7 is in contact with the end surface of the skid II 8.

[0056] Step 6: In the assembled state of step 5, weld the connecting welds between the ear seat 7 and the skid II 8 (except the bottom weld which cannot be welded). After welding, remove the tooling to complete the assembly of the ear seat on one side of the skid II 8.

[0057] Step 7: According to the methods of steps 5 and 6, the remaining adjacent skid lugs 7 are assembled and welded in sequence.

[0058] Step 8: Use the single ear plate 3 of the tooling to perform installation inspection on the ear seat 7 of each skid in turn. If the installation is successful, the skid assembly welding is qualified.

[0059] In steps 3 and 5, the theoretical gap between the single ear plate 3 and the ear seat 7 on both sides is 5 mm. After adding the process gasket, the gap is controlled between 0.5 mm and 1 mm. The purpose is: considering the welding deformation when the ear seat 7 is welded to the skid frame, strict control is implemented during the early assembly to reduce manufacturing errors and improve assembly accuracy.

[0060] like Figure 11 As shown, the gooseneck includes a gooseneck frame 9 and an upper ear plate 10 and a lower ear plate 11. The method of assembling the connecting ear plates at the end of the gooseneck frame 9 is the same as the method in steps 3 and 4 above, that is, the upper ear plate 10 and the lower ear plate 11 are assembled to the two sets of double ear plates 4 on the same side of the tooling with a pin, and process gaskets are added to the gaps on both sides of the upper ear plate 10, the lower ear plate 11 and the double ear plates 4. The whole is combined with the gooseneck frame 9 so that the center line A of the tooling frame coincides with the center line D of the gooseneck frame, and the upper ear plate 10, the lower ear plate 11 and the end surface of the gooseneck frame 9 are in contact (as shown in FIG. Figure 12 Then, in this assembled state, the connecting welds of the upper ear plate 10, the lower ear plate 11 and the gooseneck frame body 9 are welded (except that the bottom weld cannot be welded), and the tooling is removed after welding.

[0061] Use the double ear plate 4 of the tooling to install and test the upper ear plate 10 and the lower ear plate 11 of each gooseneck. If they can be installed smoothly, the gooseneck welding is qualified.

Claims

1. A combined tooling for realizing the interchange of multiple connectors on a skid of an oil drilling rig, characterized in that: The invention comprises a rectangular parallelepiped frame-type frame (1), wherein one side of the frame (1) is provided with four single-ear plates (3), and the opposite side is provided with four groups of double-ear plates (4), wherein the double-ear plates (4) are composed of two symmetrically arranged single-ear plates, and bottom plates (2) are provided at the four corners of the bottom of the frame (1), and hanging pipes (5) are provided on both sides of the upper end.

2. The combined tooling for realizing the interchange of multiple connectors of oil drilling rig skid according to claim 1 is characterized in that: The four single-ear plates (3) are symmetrically arranged with the center line A of the tooling frame as a reference.

3. The combined tooling for realizing the interchange of multiple connectors of oil drilling rig skid according to claim 1 is characterized in that: The four groups of double-ear plates (4) are symmetrically arranged with the center line A of the tooling frame as a reference.

4. The combined tooling for realizing the interchange of multiple connectors of oil drilling rig skid according to claim 1 is characterized in that: The aperture sizes of the pin holes of the single-ear plate (3) and the double-ear plate (4) are consistent with the aperture sizes of the pin holes of the skid ear seat (7), the gooseneck upper ear plate (10), and the gooseneck lower ear plate (11).

5. The combined tooling for realizing the interchange of multiple connectors of oil drilling rig skid according to claim 1 is characterized in that: The hole spacing between the two single-ear plates (3) on the same side and the hole spacing between the two groups of double-ear plates (4) on the same side are consistent with the hole spacing of the skid lug seat (7).

6. The combined tooling for realizing the interchange of multiple connectors of oil drilling rig skid according to claim 1 is characterized in that: The thickness of the single ear plate (3) is consistent with the thickness of the gooseneck upper ear plate (10) and the gooseneck lower ear plate (11); the inner opening size of the double ear plate (4) is consistent with the inner opening size of the skid ear seat (7).

7. A combined method for realizing the interchange of multiple connectors of a drilling rig skid, characterized in that: The combined tooling according to any one of claims 1 to 6 is used as a template to assemble the end ear seat (7) of the combined skid and the gooseneck ear plate, and perform inspection after welding, including: connecting the two single ear plates (3) on the same side of the combined tooling with the two processed ear seats (7) respectively, and then combining the whole with the skid I (6), and welding in this combined state, and then using the welded ear seat (7) to combine the ear seat (7) of the adjacent skid II (8), and completing the combination of all the skid ear seats (7) according to this method; assembling the two groups of double ear plates (4) on the same side of the combined tooling with the upper ear plate (10) and the lower ear plate (11) of the gooseneck respectively, and then combining the whole with the gooseneck frame (9), and welding in this combined state, thus completing the combination of the gooseneck ear plates.

8. The method for realizing interchange of multiple connectors of oil drilling rig skid according to claim 7, characterized in that: The skid end lugs are assembled according to the following steps: Step 1: Make each skid frame and end connecting ear seat (7), leave margins at both ends of the skid frame in the length direction, and process the pin holes of the ear seat (7); Step 2: Place the skids in parallel on a rigid platform, assemble them with connecting frames (12) to connect them into a whole, and then draw a cutting line on the entire skid to remove the length margin of each skid; Step 3: Use a pin to assemble the two ear seats (7) to the two single ear plates (3) on the same side of the tooling. Add process gaskets at the gaps on both sides of the single ear plates (3) and the ear seats (7) to control the gaps between them to be between 0.5 mm and 1 mm. Then, assemble the whole with the skid I (6) so that the center line A of the tooling frame coincides with the center line B of the skid I (6), and the ear seats (7) and the end faces of the skid I (6) are in contact. Step 4: In the assembled state of step 3, welding is performed on the connecting weld between the ear seat (7) and the drag skid I (6). After welding, the tooling is removed, and the assembly of the ear seat (7) and the drag skid I (6) is completed; Step 5: Assemble an ear seat (7) to the single ear plate (3) of the tooling with a pin, add process gaskets at the gaps on both sides of the single ear plate (3) and the ear seat (7) to control the gap between 0.5mm and 1mm, and then assemble the whole with the adjacent skid II (8), and use a pin to connect the other single ear plate (3) of the tooling with the ear seat (7) welded at the end of the skid I (6), taking into account that the center line A of the tooling frame coincides with the center line C of the connecting frame (12), and the ear seat (7) and the end face of the skid II (8) are in contact; Step 6: In the assembled state of step 5, welding is performed on the connecting weld between the ear seat (7) and the skid II (8), and the tooling is removed after welding, thus completing the assembly of the ear seat on one side of the skid II (8); Step 7: According to the method of steps 5 and 6, the remaining adjacent skid lugs (7) are assembled and welded in sequence; Step 8: Use the single ear plate (3) of the tooling to sequentially test the ear seat (7) of each skid. If the installation is successful, the skid assembly welding is qualified.

9. The method for realizing interchange of multiple connectors of a drilling rig skid according to claim 7, characterized in that: The gooseneck ear plate is assembled according to the following steps: The upper ear plate (10) and the lower ear plate (11) are assembled to the two groups of double ear plates (4) on the same side of the tooling by using a pin shaft, and process gaskets are added to the gaps on both sides of the upper ear plate (10), the lower ear plate (11) and the double ear plates (4). The whole is combined with the gooseneck frame (9) so that the center line A of the tooling frame coincides with the center line D of the gooseneck frame, and the end faces of the upper ear plate (10), the lower ear plate (11) and the gooseneck frame (9) are fitted together. Then, in this combined state, the connection welds between the upper ear plate (10), the lower ear plate (11) and the gooseneck frame (9) are welded, and the tooling is removed after welding; the double ear plates (4) of the tooling are used to install and test the upper ear plate (10) and the lower ear plate (11) of each gooseneck. If they can be installed smoothly, the gooseneck assembly welding is qualified.

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