The present disclosure relates generally to lifting devices. More specifically, the present disclosure relates to a self-contained lifting device that may be used for lifting heavy objects in a workspace, such as on an oil and gas drilling rig.
This section is intended to introduce the reader to various aspects of art that may be related to various aspects of the present disclosure, which are described and/or claimed below. This discussion is believed to be helpful in providing the reader with background information to facilitate a better understanding of the various aspects of the present disclosure. Accordingly, it should be understood that these statements are to be read in this light, and not as admissions of prior art.
The oil and gas industry frequently performs offshore drilling operations. Offshore drilling is a process where a borehole, a small diameter hole in the ground, is drilled through the seabed or the Earth's surface in order to explore and extract petroleum that lies beneath the seabed or surface. The offshore drilling process generally takes place from an offshore oil platform. An offshore oil platform, or oil rig, is a large structure with facilities to drill wells, to extract and process oil and natural gas, and to temporarily store product until it can be brought to shore for refining. During the offshore drilling process, subsurface samples, or samples from beneath the seabed, may be retrieved and analyzed to determine characteristics, such as porosity (i.e., the capacity of the rock to hold fluids) or permeability (i.e., the ease by which a fluid can flow through the reservoir rock), of the surrounding area.
The subsurface samples are often retrieved in a long (e.g., 120-240 feet) cylinder known as a core. The core is then cut or sawed into core sections (e.g., 3 feet long). Once a core section is obtained, the ends of the core section are capped, and the core is placed in a safe for transport.
Current methods for handling core sections have created several challenges in the industry. The core sections can weigh anywhere between 40 and 120 pounds and can be up to six inches in diameter. Currently, individuals lift core sections and physically move the core based on training describing proper lifting technique. Moving heavy cores by hand may be cumbersome and labor intensive. Shorter tubes may be considered to decrease the weight of the tubes, however, such tubes may be undesirable from a geological analysis standpoint. Accordingly, a process and system for handling core sections is needed.
A summary of certain embodiments disclosed herein is set forth below. It should be understood that these aspects are presented merely to provide the reader with a brief summary of these certain embodiments and that these aspects are not intended to limit the scope of this disclosure. Indeed, this disclosure may encompass a variety of aspects that may not be set forth below.
In a first embodiment, a modular lifting system includes an enclosable lifting device support structure, including a deployable top configured to support a lifting device on a first side of the deployable top, a plurality of lateral sides, a base coupled to the plurality of lateral sides, and a plurality of extension arms configured to extend and support the deployable top when the deployable top is deployed.
In another embodiment, a method includes positioning a self-contained, modular lifting system, including a lifting device, adjacent to a workspace, deploying a deployable top of the self-contained, modular lifting system, wherein the lifting device is supported by the deployable top, positioning the lifting device over the workspace, and lifting an object with the lifting device.
In a further embodiment, a self-contained lifting system includes a lifting device support structure, including a base, a plurality of lateral sides extending from the base, a deployable top disposed above the plurality of lateral sides, and a plurality of extension arms configured to raise and lower the deployable top, wherein the base, the plurality of lateral sides, and the deployable top define a self-contained volume, and a lifting device disposed within the self-contained volume and supported by the deployable top.
In another embodiment, a system includes a contained lifting device support structure and a lifting device. The contained lifting device support structure includes a plurality of lateral sides and a base coupled to the plurality of lateral sides. The lifting device is disposed within an interior volume of the contained lifting device support structure, wherein the lifting device is configured to enable overhead lifting of objects adjacent to the system.
These and other features, aspects, and advantages of the present disclosure will become better understood when the following detailed description is read with reference to the accompanying drawings in which like characters represent like parts throughout the drawings, wherein:
One or more specific embodiments of the present disclosure will be described below. In an effort to provide a concise description of these embodiments, all features of an actual implementation may not be described in the specification. It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with systems-related and business-related constraints, which may vary from one implementation to another. Moreover, it should be appreciated that such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.
When introducing elements of various embodiments of the present disclosure, the articles “a,” “an,” “the,” and “said” are intended to mean that there are one or more elements. The terms “comprising,” “including,” and “having” are intended to be inclusive and mean that there may be additional elements other than the listed elements.
Embodiments of the present disclosure are directed toward a self-contained lifting system with a lifting device. One use for such a lifting device may include lifting core sections on an offshore oil rig. The lifting system described below can be moved with a device suitable for heavy lifting. For instance, many offshore oil rigs have access to a crane or forklift for other uses. A self-contained lifting system can be lifted into the desired position with a crane. Once the self-contained lifting system is lifted into position, the lifting device may be deployed. More specifically, a deployable roof of the self-contained lifting system may be raised along with a lifting system supported by the deployable roof. With the deployable roof raised, the lifting system extends into the surrounding area to manipulate objects in the nearby vicinity. After a lifting operation or process is completed, the lifting system and the deployable roof may be retracted to re-enclose the self-contained lifting system. Thereafter, the self-contained lifting system may be removed from the workspace and/or positioned elsewhere for use in other lifting operations.
Referring now to
To deploy the self-contained lifting system 102 for lifting objects (e.g., core sections 114), the self-contained lifting system 102 is first positioned adjacent to the workspace 104. As shown in the perspective view of
Inside the self-contained lifting system 102, there may be a power connection 206. The power connection 206 may be a hydraulic, pneumatic, electromechanical, or other type of connection. The power connection 206 could be located on one of the lateral sides 204 of the system 102 (e.g., the side opposite the direction the deployable top 202 pivots in or opposite the side the door/access panel is located), near the lifting device 118, or anywhere that would be convenient to connect the power connection 206 of the system 102 to a power source. When the self-contained lifting system 102 is configured for transporting (e.g., shipped), as shown in
The system 102 may also include an access window 208. The access window 208 may be used to enable rotation of the lifting device 118 from an interior volume of the enclosable self-contained lifting system 102 to a surrounding environment of the enclosable lifting device 118 support structure after the deployable top 202 is deployed. In the illustrated embodiment, the lifting device 118 is positioned within the interior volume and is attached to a first side (e.g., the underside) of the deployable top 202. Additionally, the access window 208 is closed, thereby keeping the interior volume of the self-contained lifting system 102 closed and blocking the lifting device 118 from exiting the system 102. The system 102 may also include a door 210 for an operator. When the system 102 is being moved or transported, the operator may close the door 210 so that any interior objects (e.g., the lifting device 118) are contained inside. The closed door 210 and access window 208 may also block objects from the surrounding environment from entering the interior volume of the self-contained lifting system 102.
As shown in
Additional crane attachment points 218 having lifting apertures 220 may also be used to help move the self-contained lifting system 102 to the new workspace 104. While four additional crane attachment points 218 are shown in
If a crane is used to position the system 102 adjacent to a workspace 104, it may also be convenient to deploy the system 102 with the crane using the crane attachment point 214. For example,
In other embodiments, the lifting device 118 may be located on a pedestal of the self-contained lifting system 102. For instance, the lifting device 118 may be floor-mounted on a shaft or mounted on the second side 302 of the deployable top 202. In certain embodiments, the lifting device 118 may be located or mounted on a lateral side.
Interlocking pins 314 may be inserted into the self-contained lifting system 102 through one or more locking apertures 318 formed in one or more of the lateral sides 204. The interlocking pins 314 secure the system 102 in the closed position, the raised position, or the pivoted position. For example, if the deployable top 202 is in the closed position, interlocking pins 314 may be inserted into locking apertures 318 at the bottom of the lateral sides 204 to secure the deployable top 202 in the closed position as it is moved to another location. Conversely, as shown in
In the illustrated embodiment, the lifting device 118 is shown hanging from the first side 300 of the deployable top 202 (e.g., the underside). As the deployable top 202 moves in the Y direction, the lifting device 118 may pass from the interior of the system 102 through the access window 208 into the surrounding environment (e.g., the workspace 104). The deployable top 202 may also enable translation of the lifting device 118 along the X axis of the coordinate system 306 from a first end 326 to a second end 328 of the deployable top 202. For example, as described below with reference to
By providing a way to move the lifting device 118 along the deployable top 202, the system 102 can cover a wide span of the workspace 104, as opposed to a manipulator or other lifting device bolted to a fixed location. For example,
In certain embodiments, the track 402 could be incorporated into a floor of the system 102. For example, the system 102 may include a shaft coupled to the track 402 on the floor of the system 102, and the lifting device 118 may be supported by the shaft. The track 402 may have similar features to those described the overhead lifting system 102 of
As shown in
The rail transport 410 may also include brakes to stop and restrict the lifting device 118 from undesired movement. When the lifting device 118 is not actuated, the brakes may lock with the rollers in position. The brakes may also help secure the lifting device 118 when the system is being transported to a new workspace 104. The rail transport 410, the arm 412, and the plurality of grappling hands 414 each provide different degrees of freedom in lifting objects, enabling the lifting device to move in the X, Y, and Z directions of the coordinate system 306.
The rail transport 410, the arm 412, and the plurality of grappling hands 414 of the lifting device 118 may be controlled by an operator to lift core sections 114, as described above.
The control panel 502 may enable the operator to set a lower movement limit, an upper movement limit, a left movement limit, a right movement limit, and/or other limits of movement of the lifting device 118. It may also be used to control any variety of components of the lifting device 118, such as the rail transport 410, the arm 412, the grappling hands 414, or any combination thereof. In some embodiments, the lifting device 118 may be controlled by an operator simply by guiding and moving the lifting device 118 into place. Similar to
In order for the pivoted extension arms 304 to support the deployable top 202, the lifting device 118, and other objects lifted, the system 102 may include supports for the extension arms 304. The supports may also help secure the device for shipping. For example,
When the self-contained lifting system 102 is shipped to a new workspace 104 it may be beneficial to restrict the movement of the lifting device 118 within the interior volume of the system 102. While the lifting device 118 may include brakes, as discussed with
When the deployable top 202 is in the second or third position, the interlocking pins 314 may be inserted into the high locking apertures 318. For example,
As described in detail above, present embodiments include the self-contained lifting system 102 which includes the enclosable lifting device 118, the deployable top 202 configured to support the lifting device 118 on the first side 300 of the deployable top 202, the plurality of lateral sides 204, the base 200 coupled to the plurality of lateral sides 204, and a plurality of extension arms 304 configured to extend and support the deployable top 202 when the deployable top 202 is deployed. The deployable top 202 enables overhead lifting of objects in a workspace 104, while also providing a self-contained lifting system that may be readily transported and used in a variety of workspaces 104. For example, the overhead lifting described above may provide for a non-obtrusive way to lift objects, such as core samples, on an oil rig.
This written description uses examples to disclose the present embodiments, including the best mode, and also to enable any person skilled in the art to practice the present embodiments, including making and using any devices or systems and performing any incorporated methods. The patentable scope of the present embodiments is defined by the claims, and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they have structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal language of the claims.
This application is a continuation of U.S. patent application Ser. No. 14/477,676, entitled “SYSTEM AND METHOD FOR A SELF-CONTAINED LIFTING DEVICE,” filed Sep. 4, 2014, which claims priority from and the benefit of U.S. Provisional Application No. 61/906,343, entitled “SYSTEM AND METHOD FOR A SELF-CONTAINED LIFTING DEVICE,” filed Nov. 19, 2013, both of which are herein incorporated by reference in their entirety for all purposes.
Number | Date | Country | |
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61906343 | Nov 2013 | US |
Number | Date | Country | |
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Parent | 14477676 | Sep 2014 | US |
Child | 15276584 | US |