Lifting structure for derrick base

Abstract

The invention discloses a derrick base lifting structure which comprises a base lifting assembly, the base lifting assembly comprises two bases which are oppositely arranged in parallel, an upper base is arranged over each base, and the bottoms of the two ends of each upper base are hinged to the corresponding bases through connecting columns; the bottom of the middle of each upper seat is hinged to the corresponding base through a lifting cylinder. The derrick lifting assembly comprises derrick mounting frames which are arranged on the two bases oppositely, a derrick which is connected to the two bases is arranged between the two derrick mounting frames, the derrick is formed by sequentially connecting multiple sections of derrick units through pin shafts in the vertical direction, a lifting oil cylinder is arranged on the side wall of each derrick mounting frame, and the derrick mounting frames are arranged on the derrick mounting frames. The free end of the lifting oil cylinder is connected with a lifting rope, and the free end of the lifting rope is used for being connected with a derrick unit. The invention aims to solve the problems that the lifting safety risk is high, the occupied area is large, the equipment weight is heavy, and the requirements of drilling installation and drilling operation in a narrow space of a mountainous area cannot be met.

Description

Technical Field

[0001] The invention belongs to the technical field of petroleum mechanical equipment, and in particular relates to a derrick base lifting structure. Background Art

[0002] At present, the traditional derrick base supporting lifting system either adopts the form of wire rope lifting or the form of oil cylinder lifting. During lifting, the base is mainly used for rotating lifting, with the base as the supporting beam to balance the tipping moment. The derrick is installed at a low position and the whole is rotated and lifted to an upright state. At the same time, the supporting base is installed at a low position and lifted to an upright state using a parallelogram structure, such as the rotating lifting type, the simultaneous lifting type, and the one-time rope continuous lifting type. There are the following shortcomings: ① Additional extra-long and extra-high bases and counterweight water tanks are required to balance the tipping moment of the derrick rotation lifting, and the base is heavy; ② The derrick is installed horizontally at a low position, and the installation and lifting occupy a large area, which is not suitable for operations in mountainous areas. Summary of the invention

[0003] In view of the problems existing in the prior art, the present invention provides a derrick base lifting structure, which aims to solve the problems of high lifting safety risk, large footprint, heavy equipment weight and inability to meet the drilling installation and drilling operation needs in narrow spaces in mountainous areas.

[0004] In order to solve the above technical problems, the present invention is implemented by the following technical solutions:

[0005] A derrick base lifting structure, comprising:

[0006] A base lifting assembly, comprising two bases arranged opposite to each other in parallel, an upper seat being arranged directly above each of the bases, the bottoms at both ends of each of the upper seats being hinged to the corresponding bases through connecting columns, and the middle bottom of each of the upper seats being hinged to the corresponding bases through a lifting cylinder;

[0007] The derrick lifting assembly includes a derrick mounting frame arranged opposite to the two bases, a derrick connected to the two bases is arranged between the two derrick mounting frames, the derrick is composed of multiple derrick units connected in sequence along the vertical direction through pins, and a lifting cylinder is arranged on the side wall of each derrick mounting frame. The free end of the lifting cylinder is connected to a pulling rope, and the free end of the pulling rope is used to connect the derrick unit.

[0008] Furthermore, each of the lifting cylinders is correspondingly arranged on the side walls of the two derrick mounting frames which are away from each other, a guide pulley is arranged on the top of each of the derrick mounting frames, and the free end of each of the pulling ropes is wound around the corresponding guide pulley.

[0009] Furthermore, guide rollers are provided on the side walls of the two derrick mounting frames that are close to each other, and the guide rollers are used to guide the derrick unit.

[0010] Furthermore, a derrick unit sliding guide rail is disposed on the upper end surface of each of the bases, and the two derrick unit sliding guide rails are parallel and extend to one side of the derrick mounting frame.

[0011] Furthermore, one end of the two upper seats is connected by a stand, and the other end is connected by a connecting beam, and a turntable beam is connected between the stand and the connecting beam.

[0012] Furthermore, one end of each upper seat is provided with an escape space for evading the corresponding derrick.

[0013] Furthermore, a crown block is arranged on the top of the top derrick unit of the derrick, a traveling block suspension rope is connected to the crown block, and a traveling block is connected to the lower end of the traveling block suspension rope.

[0014] Furthermore, the two bases are connected via a connecting frame and a diagonal rod.

[0015] Furthermore, a winch mounting frame is connected between the bases, and a winch is arranged on the winch mounting frame.

[0016] Furthermore, an ear plate is provided on the outer side of each section of the derrick unit, and the ear plate is used to be connected to the free end of the pulling rope.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] The present invention provides a derrick base lifting structure, wherein the bottom of each upper seat at both ends is hinged to the corresponding base through a connecting column, and the middle bottom of each upper seat is hinged to the corresponding base through a lifting cylinder. Under the action of the lifting cylinder, the left and right upper seats can be rotated and lifted from a low position to a high position relative to their respective corresponding bases. In other words, the supporting rotary lifting structure is lifted by the lifting cylinder, so that the low-position installation of the drilling platform equipment can be lifted into place together with the front stage of the base, and the equipment has the characteristics of less high-altitude operations and light weight. At the same time, a lifting cylinder is arranged on the side wall of each derrick mounting frame, and a lifting rope is connected to the free end of the lifting cylinder. The free end of the lifting rope is used to connect the derrick unit, so that the derrick unit and accessories such as cage ladders installed thereon can be lifted vertically in sections, greatly reducing the horizontal installation distance required for the rotary lifting derrick, meeting the drilling installation and drilling operation requirements in narrow spaces in mountainous areas, and having the characteristics of small footprint and low lifting safety risk. In summary, the present invention effectively solves the problems of high safety risk of lifting, large floor space, heavy equipment weight and inability to meet the needs of drilling installation and drilling operations in narrow spaces in mountainous areas, thereby greatly improving the applicability of the drilling rig.

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the specific implementation modes of the present invention, the drawings required for use in the description of the specific implementation modes will be briefly introduced below. Obviously, the drawings described below are some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is an overall view of a derrick base lifting structure according to an embodiment of the present invention, wherein (a) is a front view and (b) is a side view;

[0022] Figure 2 1 is a general view of a derrick of a derrick base lifting structure according to an embodiment of the present invention, wherein (a) is a front view and (b) is a side view;

[0023] Figure 3 Schematic diagram of a derrick mounting frame of a derrick base lifting structure according to an embodiment of the present invention, wherein (a) is a front view and (b) is a side view;

[0024] Figure 4 1 is a general view of a base lifting assembly of a derrick base lifting structure according to an embodiment of the present invention, wherein (a) is a front view and (b) is a side view;

[0025] Figure 5 This is a diagram of a base low position state of a derrick base lifting structure according to an embodiment of the present invention;

[0026] Figure 6 This is a base diagram of a derrick base lifting structure according to an embodiment of the present invention;

[0027] Figure 7 This is a top view of a derrick base lifting structure according to an embodiment of the present invention;

[0028] Figures 8 to 13 This is an installation and lifting diagram of a derrick base lifting structure according to an embodiment of the present invention, wherein (a) is a main view and (b) is a side view.

[0029] In the figure: 1-base lifting assembly; 100-base; 101-upper seat; 1011-avoidance space; 102-connecting column; 103-lifting cylinder;

[0030] 2-derrick lifting assembly; 200-derrick mounting frame; 200a-lifting cylinder; 200b-lifting rope; 200c-guide pulley; 200d-guide roller; 201-derrick; 2011-pin shaft;

[0031] 3-sliding guide rail of derrick unit; 4-root platform; 5-connecting beam; 6-turntable beam; 7-overhead crane; 8-traveling block suspension rope; 9-traveling block; 10-connecting frame; 11-diagonal stay rod; 12-winch; 13-pin shaft of the first lifting cylinder; 14-pin shaft of the second lifting cylinder. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] like Figure 1 As shown, a derrick base lifting structure according to an embodiment of the present invention includes a base lifting assembly 1 and a derrick lifting assembly 2. Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the base lifting assembly 1 includes two bases 100 arranged opposite to each other in parallel, an upper seat 101 is arranged directly above each base 100, the bottom of both ends of each upper seat 101 is hinged to the corresponding base 100 through connecting columns 102, and the middle bottom of each upper seat 101 is hinged to the corresponding base 100 through a lifting cylinder 103.

[0034] Specifically, the left and right upper seats 101 are hinged to the left and right bases 100 via a connecting column 102, that is, each upper seat 101 is hinged to the corresponding base 100 via a connecting column 102, together forming a parallelogram structure. Under the action of the lifting cylinder 103, the left and right upper seats 101 can be rotated from a low position to a high position relative to their respective corresponding bases 100.

[0035] For example, Figure 4 and Figure 5 As shown, each base 100 includes a front base 100a, a middle base 100b and a rear base 100c connected in sequence, one end of the lifting cylinder 103 is hinged to the upper base 101 through the first lifting cylinder pin 13, and the other end is hinged to the front base 100a through the second lifting cylinder pin 14. The two ends of the connecting column 102 are connected to the corresponding upper base 101 and the base 100 by a pin, and the lifting cylinder 103 is a hydraulic cylinder. The lower end of the derrick 201 is installed on the middle base 100b and connected to the middle base 100b by a pin. It should be understood that the two bases 100 are symmetrically arranged on both sides of the wellhead center.

[0036] like Figure 1 , Figure 2 and Figure 3 As shown, the derrick lifting assembly 2 includes a derrick mounting frame 200 arranged opposite to each other on two bases 100, a derrick 201 connected to the two bases 100 is arranged between the two derrick mounting frames 200, the derrick 201 is composed of a plurality of derrick units connected in sequence along the vertical direction through a pin shaft 2011, and a lifting cylinder 200a is arranged on the side wall of each derrick mounting frame 200, and a lifting rope 200b is connected to the free end of the lifting cylinder 200a, and the free end of the lifting rope 200b is used to connect the derrick unit.

[0037] Specifically, when installing the derrick 201, the uppermost derrick unit of the derrick 201 is placed between the derrick mounting frames 200, the free end of the pulling rope 200b is connected to the uppermost derrick unit, and the uppermost derrick unit is lifted up to a set height by using the lifting cylinder 200a and the pulling rope 200b, and the derrick unit of the second top layer is placed on the base 100 at the front end of the derrick mounting frame 200, and the top of the derrick unit of the second top layer is connected to the bottom of the derrick unit of the uppermost layer by the pin shaft 2011, and the uppermost derrick unit is continuously lifted up by using the lifting cylinder 200a and the pulling rope 200b until the derrick unit of the second top layer rotates into the derrick mounting frame 200, and then the lifting cylinder 200a and the pulling rope 200b are released. In addition to the connection between the lifting rope 200b and the topmost derrick unit, the free end of the lifting rope 200b is connected to the derrick unit of the second top layer, and after the derrick unit of the second top layer is lifted up to the set height using the lifting cylinder 200a and the lifting rope 200b, the derrick unit of the second top layer is placed on the base 100 at the front end of the derrick mounting frame 200, and the top of the derrick unit of the second top layer is connected to the bottom of the topmost derrick unit through the pin 2011, and the lifting cylinder 200a and the lifting rope 200b are continued to lift the derrick unit of the second top layer upward until the derrick unit of the second top layer is rotated into the derrick mounting frame 200, and the installation is repeated in this way until all the derrick units are assembled.

[0038] For example, Figure 2 As shown, the derrick 201 includes derrick units 201a, derrick units 201b, derrick units 201c, derrick units 201d, derrick units 201e, derrick units 201f, derrick units 201g, derrick units 201h and derrick units 201i from top to bottom, and the derrick units are connected into one body through pins 2011. Figure 3 As shown, the derrick mounting frame 200 is composed of left and right mounting frames, which are symmetrically mounted on the left and right bases 100 and can be rotated and lifted to a working state by a cylinder drive. The derrick in this embodiment is a front-opening "K"-shaped structure, and the lifting cylinder 200a is a hydraulic cylinder.

[0039] In one embodiment, if Figure 3As shown, each lifting cylinder 200a is correspondingly arranged on the side walls of two derrick mounting frames 200 that are away from each other, and a guide pulley 200c is arranged on the top of each derrick mounting frame 200. The free end of each pulling rope 200b is wound around the corresponding guide pulley 200c. The guide pulley 200c is used to guide the pulling rope 200b, so that the operation of the pulling rope 200b is smoother.

[0040] In one embodiment, if Figure 3 As shown, guide rollers 200d are provided on the side walls of the two derrick mounting frames 200 that are close to each other. The guide rollers 200d are used to guide the derrick unit. Specifically, when the derrick unit moves upward, it slides in contact with the guide rollers 200d to reduce friction and prevent the derrick unit from damaging the derrick mounting frames 200.

[0041] As a more preferred embodiment, Figure 3 and Figure 6 As shown, a derrick unit sliding guide rail 3 is provided on the upper end surface of each base 100, and the two derrick unit sliding guide rails 3 are parallel and extend to one side of the derrick mounting frame 200. In this embodiment, the derrick unit sliding guide rail 3 is used to support each derrick unit, so that the derrick unit can slide into the derrick mounting frame 200. Exemplarily, the derrick unit sliding guide rail 3 is connected to the base 100 by a pin shaft, and when the derrick is installed, the derrick unit sliding guide rail 3 can be quickly removed.

[0042] In one embodiment, if Figure 7 As shown, one end of the two upper seats 101 is connected by a stand 4, and the other end is connected by a connecting beam 5, and a turntable beam 6 is connected between the stand 4 and the connecting beam 5.

[0043] In one embodiment, if Figure 7 As shown, an escape space 1011 for escaping the corresponding derrick 201 is provided at one end of each upper seat 101, and the escape space 1011 is used to avoid the derrick 200 when the upper seat 101 is raised to an upright state. Specifically, when the upper seat 101 is raised to an upright state, the derrick 201 enters from the escape space 1011 of the corresponding upper seat 101. More preferably, after the derrick 201 enters from the escape space 1011 of the corresponding upper seat 101, the ends of the escape space 1011 of the upper seat 101 are connected by connecting trusses to ensure the reliability of the structure.

[0044] like Figure 1As shown, a crown block 7 is arranged on the top of the top derrick unit of the derrick 201, a traveling block suspension rope 8 is connected to the crown block 7, and a traveling block 9 is connected to the lower end of the traveling block suspension rope 8. That is, the crown block 7 is located at the uppermost end of the derrick 201. In this embodiment, the crown block 7 is connected to the derrick 201 as a whole by bolts, and the traveling block suspension rope 8 is a steel wire rope.

[0045] Better, such as Figure 6 As shown, the two bases 100 are connected via a connecting frame 10 and a diagonal rod 11 .

[0046] In one embodiment, if Figure 4 and Figure 6 As shown, a winch mounting frame is connected between the bases 100, and a winch 12 is arranged on the winch mounting frame. For example, the winch 12 is mounted on the rear base 100c.

[0047] The lifting principle of a derrick base lifting structure of the present invention is as follows:

[0048] like Figure 6 As shown, the left and right bases 1, the connecting frame, the inclined tie rod, the derrick unit sliding guide rails and the winch are installed;

[0049] like Figure 8 As shown, install the derrick installation frame, assemble the crown block, derrick unit 201a section (single piece, back beam and inclined rod), cage ladder on the ground, hang the traveling block inside the derrick unit 201a section, thread the traveling block suspension rope between the crown block and the traveling block, and hoist it as a whole into the derrick installation frame for lifting;

[0050] like Fig. 9 As shown, assemble the derrick unit 201b section (single piece, back beam and inclined tie rod) on the ground, hoist it as a whole onto the derrick unit sliding guide rail, use the oil cylinder to lift the derrick unit 201a section, connect the connecting pin between the derrick unit 201a section and the derrick unit 201b section, and as the derrick unit 201a section rises, it will drive the derrick unit 201b section to rotate and enter the derrick installation frame;

[0051] like Fig.10 As shown, the pin shaft is installed between the derrick unit 201b section and the derrick unit 201a section, and the cage ladder is installed on the derrick unit 201b section to lift the derrick unit 201b section and the derrick unit 201a section as a whole;

[0052] like Fig.11 As shown, according to the above steps, the derrick unit 201c section, the derrick unit 201d section, the corresponding cage ladder and the second-floor platform are installed;

[0053] like Fig.12 As shown, install the derrick unit 201e section, the corresponding cage ladder and the second-floor platform manipulator according to the above steps;

[0054] like Fig.13 As shown, follow the above steps to install other sections of the derrick, remove the derrick unit sliding guide rails, and the derrick installation is completed.

[0055] like Figure 5 As shown, after the vertical lifting of the derrick 201 is completed, the lower end of the connecting column 102 is connected to the base with a pin by a crane, and then the upper seat 101 is connected to the upper end of the connecting column 102 with a pin, and finally the root platform 4, the turntable beam 6 and the connecting beam 5 are connected to the upper seat with a pin to complete the low-level installation state of the base. One end of the lifting cylinder 103 is hinged to the upper seat 101 through the first lifting cylinder pin 13, and the other end is hinged to the base through the second lifting cylinder pin 14. Finally, the hydraulic system is controlled to extend the lifting cylinder 103 to push the upper seat 101 from the low position to the high position to complete the lifting of the base.

[0056] This embodiment can meet the needs of drilling installation and drilling operations in narrow spaces in mountainous areas, has the characteristics of small footprint, light weight, less high-altitude installation and disassembly operations, and meets HSE requirements.

[0057] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0058] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0059] In the present invention, unless otherwise clearly specified and limited, the terms "connected", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0061] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0062] Finally, it should be noted that the above-described embodiments are only specific implementations of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the above-described embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-described embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A derrick base lifting structure, characterized in that: include: A base lifting assembly (1), comprising two bases (100) arranged opposite to each other and in parallel, an upper seat (101) being arranged directly above each base (100), the bottoms at both ends of each upper seat (101) being hinged to the corresponding base (100) via connecting columns (102), and the middle bottom of each upper seat (101) being hinged to the corresponding base (100) via a lifting cylinder (103); A derrick hoisting assembly (2) comprises a derrick mounting frame (200) arranged opposite to the two bases (100), a derrick (201) connected to the two bases (100) being arranged between the two derrick mounting frames (200), the derrick (201) being composed of a plurality of derrick units connected in sequence along a vertical direction via a pin shaft (2011), a lifting cylinder (200a) being arranged on the side wall of each derrick mounting frame (200), a lifting rope (200b) being connected to the free end of the lifting cylinder (200a), and the free end of the lifting rope (200b) being used to connect the derrick unit.

2. A derrick base lifting structure according to claim 1, characterized in that: Each of the lifting cylinders (200a) is correspondingly arranged on the side walls of the two derrick mounting frames (200) which are away from each other, a guide pulley (200c) is arranged on the top of each of the derrick mounting frames (200), and the free end of each of the pulling ropes (200b) is wound around the corresponding guide pulley (200c).

3. The derrick base lifting structure according to claim 2, characterized in that: Guide rollers (200d) are arranged on the side walls of the two derrick mounting frames (200) that are close to each other, and the guide rollers (200d) are used to guide the derrick unit.

4. The derrick base lifting structure according to claim 1, characterized in that: A derrick unit sliding guide rail (3) is arranged on the upper end surface of each base (100), and the two derrick unit sliding guide rails (3) are parallel and extend to one side of the derrick mounting frame (200).

5. The derrick base lifting structure according to claim 1, characterized in that: One end of the two upper seats (101) is connected by a stand (4), and the other end is connected by a connecting beam (5), and a turntable beam (6) is connected between the stand (4) and the connecting beam (5).

6. The derrick base lifting structure according to claim 1, characterized in that: One end of each upper seat (101) is provided with an escape space (1011) for escaping the corresponding derrick (201).

7. The derrick base lifting structure according to claim 1, characterized in that: A crown block (7) is arranged on the top of the top derrick unit of the derrick (201), a traveling block suspension rope (8) is connected to the crown block (7), and a traveling block (9) is connected to the lower end of the traveling block suspension rope (8).

8. The derrick base lifting structure according to claim 1, characterized in that: The two bases (100) are connected via a connecting frame (10) and a diagonal tie rod (11).

9. The derrick base lifting structure according to claim 1, characterized in that: A winch mounting frame is connected between the bases (100), and a winch (12) is arranged on the winch mounting frame.

10. The derrick base lifting structure according to claim 1, characterized in that: An ear plate is arranged on the outside of each section of the derrick unit, and the ear plate is used to be connected to the free end of the pulling rope (200b).

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