Combined wellhead operating frame device

Abstract

The present invention provides a combined wellhead operating frame device. The device includes: an operating ladder, a support base, a first platform, a rod clamp, and a flange bracket; each operating ladder includes a longitudinal rod and a transverse rod connected to the longitudinal rod, and each operating ladder is detachably connected to the longitudinal rod; the support base includes a base and a column connected to the base, and the support base column is detachably connected to the operating ladder column; one end of the flange bracket is detachably connected to the support base column, and the other end is detachably connected to the Christmas tree flange; one side of the first platform is detachably connected to the operating ladder transverse rod, and the other side is detachably connected to one side of the rod clamp, and the other side of the rod clamp is detachably connected to the Christmas tree rod, and the bottom of the rod clamp is seated on the Christmas tree packing box. The operating frame is fixed at three points of the upper, middle and lower parts by the rod clamp, the flange bracket and the support base, which is safe and reliable, and can be freely combined and installed to meet the requirements of different heights, single-person and multi-person operations.

Description

Technical Field

[0001] The invention belongs to the technical field of oil production, and relates to an operating auxiliary tool used for high-altitude operations required for daily maintenance of an oil field production wellhead, and in particular to a combined wellhead operating frame device. Background Art

[0002] During the production process of the pumping well, daily maintenance operations on the wellhead, such as replacing the suspension rope, adjusting the impact distance, bumping the pump, testing, etc., require climbing operations at the wellhead during the operation, and the height is more than 1.6 meters. Currently, operators stand on the wellhead Christmas tree and the packing box without protective equipment. Altitude operations above 2.0 meters cannot be performed, and there are many unsafe factors such as operator injuries. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention aims to provide a combined wellhead operating frame device, which is convenient for operators to perform the climbing operations required for wellhead maintenance and is suitable for narrow wellhead spaces and cooperative operations of operators.

[0004] In order to achieve the above-mentioned object, the present invention provides a combined wellhead operating frame device, wherein the device comprises: at least one operating ladder, a support base, a first platform, a polished rod clamp, and a flange bracket; wherein,

[0005] Each operating ladder includes a longitudinal rod and at least one transverse rod connected to the longitudinal rod; when the number of operating ladders is more than two, each operating ladder can be detachably connected longitudinally;

[0006] The support base includes a base and a column vertically connected to the base, and the column of the support base is detachably connected to the lower part of the longitudinal rod of the operating ladder;

[0007] One end of the flange bracket is detachably connected to the column of the support base, and the other end is detachably connected to the flange of the wellhead Christmas tree. The flange bracket is used to achieve the fixation between the combined wellhead operating frame device and the wellhead Christmas tree flange;

[0008] One side of the first platform is detachably connected to the transverse rod of the operating ladder, and the other side is detachably connected to one side of the polished rod clamp, forming a stable horizontal working platform; wherein the other side of the polished rod clamp is detachably connected to the polished rod of the wellhead oil tree, and the bottom of the polished rod clamp is located on the packing box of the wellhead oil tree, and the polished rod clamp is used to realize the fixation between the combined wellhead operating frame device and the polished rod of the wellhead oil tree.

[0009] In the above-mentioned combined wellhead operating frame device, preferably, when the operating ladder and / or the longitudinally connected operating ladder include other transverse rods other than the transverse rod connected to the first platform (that is, when each operating ladder has at least two transverse rods, or when the operating frame device has at least two operating ladders, or when each operating ladder has at least two transverse rods and the operating frame device has at least two operating ladders), the device also includes at least one second platform, and one side of the second platform is detachably connected to the transverse rod of the operating ladder to form a stable horizontal working platform; more preferably, the connection method of detachably connecting one side of the second platform to the transverse rod of the operating ladder is a plug-in connection; further preferably, the connection method is achieved by matching the pin hole with the pin.

[0010] The combined wellhead operating frame device provided by the present invention is connected to the wellhead Christmas tree polished rod through a work ladder, a first platform, a polished rod clamp, and realizes the fixation of the operating frame device on the one hand, and provides a work platform for the operators to work on the other hand. When another work platform is required due to the height of the work platform or other reasons, the second platform can be installed to meet the work requirements. The second platform can be, but not limited to, a rectangular flat plate. The first platform can be, but not limited to, a rectangular flat plate with an opening on one side, wherein the opening can be matched with the polished rod clamp.

[0011] In the above-mentioned combined wellhead operating frame device, one side of the first platform is detachably connected to the transverse rod of the operating ladder, generally, one side of the first platform is detachably connected to a transverse rod of one of the operating ladders, and according to actual conditions, it can also be designed to be connected to more than two transverse rods at the same time (the more than two transverse rods can be of the same operating ladder or different operating ladders); one side of the second platform is detachably connected to the transverse rod of the operating ladder, generally, one side of the second platform is detachably connected to a transverse rod of one of the operating ladders, and according to actual conditions, it can also be designed to be connected to more than two transverse rods at the same time (the more than two transverse rods can be of the same operating ladder or different operating ladders).

[0012] In the above-mentioned combined wellhead operating frame device, preferably, the detachable longitudinal connection of each operating ladder is a plug-in connection; more preferably, the connection is achieved by the matching of the plug hole and the plug. The detachable longitudinal connection can be achieved specifically by a longitudinal rod connection.

[0013] In the above-mentioned combined wellhead operating frame device, preferably, the connection mode in which the first platform side is detachably connected to the operating ladder transverse rod is a plug-in connection; more preferably, the connection mode is achieved by the matching of the plug hole and the plug;

[0014] In the above-mentioned combined wellhead operating frame device, preferably, the connection method in which the other side of the first platform is detachably connected to one side of the polished rod clamp is a plug-in connection; more preferably, the connection method is achieved by matching the pin hole with the pin.

[0015] In the above-mentioned combined wellhead operating frame device, preferably, the polished rod clamp includes a U-shaped groove; more preferably, the other side of the polished rod clamp is detachably connected to the polished rod of the wellhead oil production tree by inserting the polished rod into the U-shaped groove of the polished rod clamp and inserting a pin into the open end of the U-shaped groove.

[0016] In the above-mentioned combined wellhead operating frame device, preferably, the column of the support base and the longitudinal rod of the operating ladder are detachably connected by sleeves of the column of the support base on the longitudinal rod of the operating ladder. This connection method can select the length of the column of the support base sleeved on the longitudinal rod of the operating ladder according to actual needs, and effectively perform telescopic adjustment.

[0017] In the above-mentioned combined wellhead operating frame device, preferably, one end of the flange bracket is detachably connected to the column of the support base by inserting one end of the flange bracket into the column of the support base and then tightening it. The direct connection between the flange bracket and the support base can achieve height adjustment to meet the requirements of the height of the wellhead oil production tree flange. The end of the flange bracket connected to the column of the support base can be, but is not limited to, a fastening ring structure. The connection method of inserting one end of the flange bracket into the column of the support base and then tightening it can achieve the selection of the position of inserting one end of the flange bracket into the column of the support base according to actual needs, effectively meeting the height requirements of the flange.

[0018] In the above-mentioned combined wellhead operating frame device, preferably, one end of the flange bracket connected to the column of the support base is provided with a fastening ring structure; one end of the flange bracket is detachably connected to the column of the support base by inserting the fastening ring of one end of the flange bracket into the column of the support base and then fastening it. The direct connection between the flange bracket and the support base can achieve height adjustment to meet the requirements of the wellhead oil production tree flange height. The fastening ring structure of the flange bracket can be, but is not limited to, a square ring, a round ring, a polygonal ring, and an irregular ring.

[0019] In the above-mentioned combined wellhead operating frame device, preferably, the end of the flange bracket connected to the flange of the wellhead oil production tree has a through hole, and the through hole on the flange bracket is fixed to the screw on the oil production tree flange; more preferably, the number of the through holes is two or more; further preferably, the number of the through holes is two. When the number of through holes on the flange bracket is two or more, the through holes on the flange bracket can be respectively fixed to adjacent screws on the oil production tree flange or can be respectively fixed to non-adjacent screws on the oil production tree flange. In a preferred embodiment, the end of the flange bracket connected to the flange of the wellhead oil production tree has two through holes, and the two through holes on the flange bracket are respectively fixed to two adjacent screws on the oil production tree flange. The end of the flange bracket connected to the flange of the wellhead oil production tree can be, but not limited to, a "U"-shaped structure, an annular structure, a shovel-shaped structure, or even an irregular structure. The flange bracket as a whole can be, but not limited to, a "harpoon"-shaped structure (such as Figure 1 The structure of the flange bracket 3 shown in FIG.

[0020] In the above-mentioned combined wellhead operating frame device, preferably, after each operating ladder is detachably connected longitudinally, each transverse rod is parallel to each other.

[0021] In the above-mentioned combined wellhead operating frame device, preferably, each operating ladder includes three transverse rods connected to the longitudinal rod; more preferably, the transverse rods are arranged on the upper part of the longitudinal rod; further preferably, one of the transverse rods is arranged on the top of the longitudinal rod; most preferably, one of the three transverse rods is arranged on the top of the longitudinal rod, and the other two transverse rods divide the longitudinal rod into three sections with equal distances. Each operating ladder can be, but is not limited to, a "sheep"-shaped structure (such as Figure 1 , Figure 8B The structure of the operating ladder 1 shown in FIG. 1 ). The interval between the transverse bars of the operating ladder and the distance from the lowest transverse bar to the bottom section of the longitudinal bar can be designed according to actual needs. In a specific embodiment, the operating ladder includes three transverse bars connected to the longitudinal bar, one of which is arranged at the top of the longitudinal bar, and the other two transverse bars divide the longitudinal bar into three sections with equal distances. The interval between adjacent transverse bars of the operating ladder is 200 mm, and the lowest transverse bar is 200 mm away from the bottom end of the longitudinal bar.

[0022] In the above-mentioned combined wellhead operating frame device, preferably, the height of each operating ladder is 700mm-800mm

[0023] In the above-mentioned combined wellhead operating frame device, preferably, the height of the wellhead operating frame device after installation is 2800mm-3200mm.

[0024] In the above-mentioned combined wellhead operating frame device, preferably, the height of the support base is 700mm-800mm.

[0025] In the above-mentioned combined wellhead operating frame device, the number of transverse rods of each operating ladder can be one or more than two, the intervals between the transverse rods can be equal or unequal, and the shape of the transverse rods can be but not limited to columnar rods, plate-shaped rods, or even irregular rods; the longitudinal rods of the operating ladder can be but not limited to columnar rods, plate-shaped rods, or even irregular rods. The transverse rods and longitudinal rods of the operating ladder can be solid rods or hollow rods, respectively.

[0026] The base of the support base can be, but not limited to, plate-shaped, box-shaped, or rod-shaped; the longitudinal rods of the support base can be, but not limited to, columnar rods, plate-shaped rods, or even irregular rods.

[0027] The first platform can be, but is not limited to, a flat plate, a solid body, or even an irregular body.

[0028] The second platform can be, but is not limited to, a flat plate, a solid body, or even an irregular body.

[0029] The present invention also provides a two-person operated combined wellhead operating frame device, wherein the two-person operated combined wellhead operating frame device is formed by two sets of the above-mentioned combined wellhead operating frame devices installed facing each other on the wellhead oil production tree, wherein when the two sets of the above-mentioned combined wellhead operating frame devices are installed facing each other on the wellhead oil production tree, a set of light rod clamps is shared.

[0030] When the combined wellhead operating frame device provided by the present invention cannot meet the needs of multi-person collaborative operations, the double-person-operated combined wellhead operating frame device provided by the present invention can be installed.

[0031] The combined wellhead operating frame device provided by the present invention is fixed at three points of upper, middle and lower through a polished rod clamp, a flange bracket and a support base.

[0032] Compared with the prior art, the technical solution provided by the present invention has the following advantages:

[0033] 1. The operating frame device provided by the present invention is movable, convenient and safe, thereby effectively solving the problem that there are many oil wells in the mine and it is impossible to install it in every well, and the wellhead space is limited and needs to be moved after the operation is completed.

[0034] 2. The operating frame device provided by the present invention adopts a combined plug-in type, which is convenient for disassembly and connection; on the one hand, the device is foldable and occupies a relatively small volume after folding; on the other hand, it can be quickly installed and used in the mine, saving time and improving work efficiency.

[0035] 3. The height of the operating frame device provided by the present invention is adjustable, and the height of the operating frame can be adjusted at any time according to the height of the wellhead and operation requirements.

[0036] 4. The operating frame device provided by the present invention is fixed at three points to ensure firmness and reliability.

[0037] 5. The operating frame device provided by the present invention can be freely combined, and one set or two sets can be installed according to needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 The figure is a structural schematic diagram of a combined wellhead operating frame.

[0039] Figure 2 The present invention is a structural schematic diagram of a two-person-operated combined wellhead operating frame.

[0040] Figure 3 The figure is a schematic diagram of the on-site installation of a two-person-operated combined wellhead operating frame.

[0041] Figure 4 The present invention is a front view of a schematic diagram of on-site installation of a two-person-operated combined wellhead operating frame.

[0042] Figure 5 The present invention is a side view of a schematic diagram of on-site installation of a two-person-operated combined wellhead operating frame.

[0043] Figure 6 for Figure 1 Schematic diagram of the structure of the first platform of the operating frame and the polished rod clamp.

[0044] Figure 7 for Figure 1 Schematic diagram of the structure of the first platform and the light rod clamp viewed from above.

[0045] Fig. 8A , Figure 8B , Figure 8C for Figure 1 Schematic diagram of the middle operating frame assembly accessories. DETAILED DESCRIPTION

[0046] In order to have a clearer understanding of the technical features, purposes and beneficial effects of the present invention, the technical solution of the present invention is now described in detail below, but it should not be construed as limiting the applicable scope of the present invention.

[0047] Example 1

[0048] This embodiment provides a Figure 1 The combined wellhead operating frame device shown in the figure comprises three operating ladders 1, a supporting base 2, a flange bracket 3, a first platform 4, a polished rod clamp 5, and a second platform 6; wherein,

[0049] Each operating ladder 1 (such as Figure 1 , Figure 8BAs shown in the figure, it is a "sheep"-shaped structure with a height of 700mm-800mm, including a longitudinal rod 11 and three transverse rods connected to the longitudinal rod 11, namely foot ladders 12, one of which is arranged at the top of the longitudinal rod, and the other two transverse rods (foot ladders 12) divide the longitudinal rod 11 into three sections, each section is equidistant, and each foot ladder 12 has 4 latch holes 121; the three operating ladders 1 are detachably connected together longitudinally (the connection is made through the longitudinal rod 11 of the operating ladder 1).

[0050] Support base 2 (such as Figure 1 , Figure 8C As shown in the figure, it is a "T"-shaped structure with a height of 700mm-800mm, including a base 21 and a column 22 connected to the base; the column 22 supporting the base 2 is mounted on the longitudinal rod 11 of the operating ladder 1 for fastening (the height can be adjusted as needed), thereby detachably connecting the supporting base 2 and the operating ladder 1 together.

[0051] Flange bracket 3 (such as Figure 1 , Figure 8C As shown in the figure, the flange bracket 3 is a "harpoon" type structure. The flange bracket 3 is composed of a body 33 and a fastening ring 32, wherein the fastening ring 32 is detachably connected to one end of the body 33; one end of the flange bracket 3 is detachably connected to the support base 2, wherein the connection is achieved by inserting the fastening ring 32 of the support base 2 into the column 22 of the support base 2 and then fastening it; the other end of the body 33 of the flange bracket 3 is provided with two through holes 31, and the two through holes 31 on the flange bracket 3 are respectively fixed to two adjacent screws on the flange of the oil production tree (as shown in the figure). Figure 3 As shown), the flange bracket 3 is detachably connected to the flange of the wellhead Christmas tree.

[0052] First platform 4 (such as Figure 1 , Figure 6 , Figure 7 , Fig. 8A ) is a rectangular flat plate with a U-shaped opening on one side, and a latch 41 is provided at each of the four corners of the bottom surface of the first platform 4; a bare rod clamp 5 (as shown Figure 1 , Figure 6 , Figure 7 , Figure 8C As shown in the figure, it includes a U-shaped groove 51 and a vertical plate 52 connected to the U-shaped groove, and a total of four latch holes 121 are provided at both ends of the vertical plate 52; the side of the first platform 4 with the U-shaped opening is detachably connected to the side of the light rod clamp 5 by means of the latch 41 cooperating with the latch hole 121, and the other side of the first platform 4 (the side opposite to the side with the U-shaped opening) is detachably connected to one of the foot ladders 12 of an operating ladder 1 by means of the latch 41 cooperating with the latch hole 121 (as shown in the figure). Figure 6 , Figure 7 The polished rod of the wellhead oil tree is inserted into the U-shaped groove 51 of the polished rod clamp 5, the bottom surface of the U-shaped groove of the polished rod clamp 5 sits on the packing box of the wellhead oil tree, and the open end of the U-shaped groove is inserted into the through pin, so that the polished rod clamp 5 and the polished rod of the wellhead oil tree are detachably connected together; through the one-time connection of the foot ladder 12, the first platform 4, the polished rod clamp 5, and the polished rod of the wellhead oil tree, a stable horizontal working platform (as shown) is formed. Figure 3 shown).

[0053] Second platform 6 (such as Figure 1 , Fig. 8A The second platform 6 is a rectangular flat plate, and a latch 41 is provided on the bottom surface of the second platform 6. One side of the second platform 6 is detachably connected to one of the foot ladders 12 of an operating ladder 1 by means of the latch 41 cooperating with the latch hole 121, thereby forming a stable horizontal working platform.

[0054] This embodiment provides a two-person-operated combined wellhead operating frame device, which includes two sets of the embodiments provided in this embodiment. Figure 1 The combined wellhead operating frame device shown in the figure has only one set of polished rod clamps; two sets of the present embodiment provide Figure 1 The combined wellhead operating frame device shown in the figure shares a set of polished rod clamps, and the two sets of the present embodiment provide Figure 1 The combined wellhead operating frame device shown is installed on the wellhead oil tree facing each other (such as Figure 3 , Figure 4 , Figure 5 The two-person combined wellhead operating frame device may not install the second platform 6 according to actual conditions, and may select a suitable number of operating ladders 1 for longitudinal insertion (such as Figure 2 shown).

Claims

1. A combined wellhead operating frame device, characterized in that: The device comprises: at least one operating ladder, a supporting base, a first platform, a polished rod clamp, and a flange bracket; wherein, Each operating ladder includes a longitudinal rod and at least one transverse rod connected to the longitudinal rod; when the number of operating ladders is more than two, each operating ladder can be detachably connected longitudinally; The support base comprises a base and a column vertically connected to the base, and the column of the support base is detachably connected to the lower part of the longitudinal rod of the operating ladder; One end of the flange bracket is detachably connected to the column of the support base, and the other end is detachably connected to the flange of the wellhead Christmas tree. The flange bracket is used to fix the combined wellhead operating frame device and the wellhead Christmas tree flange; One side of the first platform is detachably connected to the transverse rod of the operating ladder, and the other side is detachably connected to one side of the polished rod clamp to form a working platform; wherein the other side of the polished rod clamp is detachably connected to the polished rod of the wellhead oil tree, and the bottom of the polished rod clamp is located on the packing box of the wellhead oil tree, and the polished rod clamp is used to realize the fixation between the combined wellhead operating frame device and the polished rod of the wellhead oil tree; Wherein, the connection mode of the detachable longitudinal connection of the operating ladder is a plug-in connection.

2. The combined wellhead operating frame device according to claim 1, characterized in that: When the operating ladder and / or the longitudinally connected operating ladder includes other transverse rods in addition to the transverse rod connected to the first platform, the device also includes at least one second platform, one side of which is detachably connected to the transverse rod of the operating ladder to form a working platform.

3. The combined wellhead operating frame device according to claim 2, characterized in that: The connection mode in which one side of the second platform is detachably connected to the transverse rod of the operating ladder is a plug-in connection.

4. The combined wellhead operating frame device according to claim 3, characterized in that: The connection is achieved by the matching of the latch hole and the latch.

5. The combined wellhead operating frame device according to claim 1, characterized in that: The detachable longitudinal connection of the operating ladder is achieved by the matching of the latch hole with the latch.

6. The combined wellhead operating frame device according to claim 1, characterized in that: The first platform side is detachably connected to the transverse rod of the operating ladder by a plug-in connection.

7. The combined wellhead operating frame device according to claim 1, characterized in that: The first platform side is detachably connected to the transverse rod of the operating ladder by means of a latch hole and a latch being matched.

8. The combined wellhead operating frame device according to claim 1, characterized in that: The other side of the first platform is detachably connected to one side of the bare rod clamp by a plug-in connection.

9. The combined wellhead operating frame device according to claim 1, characterized in that: The other side of the first platform is detachably connected to one side of the bare rod clamp by means of a latch hole and a latch being matched.

10. The combined wellhead operating frame device according to any one of claims 1, 5-9, characterized in that: The polished rod clamp includes a U-shaped groove.

11. The combined wellhead operating frame device according to claim 10, characterized in that: The other side of the polished rod clamp is detachably connected to the polished rod of the wellhead Christmas tree by inserting the polished rod into the U-shaped groove of the polished rod clamp and inserting a through pin into the open end of the U-shaped groove.

12. The combined wellhead operating frame device according to claim 1, characterized in that: The detachable connection between the upright column of the support base and the longitudinal rod of the operating ladder is achieved by sleeve-fitting the upright column of the support base onto the longitudinal rod of the operating ladder.

13. The combined wellhead operating frame device according to claim 1, characterized in that: A fastening ring structure is provided at one end of the flange bracket for connecting with the column of the support base; the detachable connection between one end of the flange bracket and the column of the support base is achieved by inserting the fastening ring at one end of the flange bracket into the column of the support base and then fastening it.

14. The combined wellhead operating frame device according to claim 1 or 13, characterized in that: One end of the flange bracket connected to the flange of the wellhead Christmas tree is provided with a through hole, and the through hole on the flange bracket is fixed to the screw on the Christmas tree flange.

15. The combined wellhead operating frame device according to claim 14, characterized in that: The number of the through holes is more than two.

16. The combined wellhead operating frame device according to claim 1, characterized in that: After the operating ladders are detachably connected longitudinally, the transverse rods are parallel to each other.

17. The combined wellhead operating frame device according to claim 1, characterized in that: The height of each operating ladder is 700mm-800mm; The height of the wellhead operating frame device after installation is 2800mm-3200mm; The height of the support base is 700mm-800mm.

18. The combined wellhead operating frame device according to claim 17, characterized in that: Each operating ladder includes three transverse bars connected to the longitudinal bars.

19. The combined wellhead operating frame device according to claim 18, characterized in that: The transverse bars are arranged on the upper part of the longitudinal bars, and one of the transverse bars is arranged on the top of the longitudinal bar.

20. The combined wellhead operating frame device according to claim 19, characterized in that: One of the three transverse bars is arranged on the top of the longitudinal bar, and the other two transverse bars divide the longitudinal bar into three sections with equal distances.

21. A two-person-operated combined wellhead operating frame device, characterized in that: The two-person operated combined wellhead operating frame device shown is formed by two sets of combined wellhead operating frame devices described in any one of claims 1-20 being installed facing each other on the wellhead oil production tree, wherein when the two sets of combined wellhead operating frame devices described in any one of claims 1-20 are installed facing each other on the wellhead oil production tree, a common set of light rod clamps is used.

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