Flexible linear accessible subsea control

Abstract

The housing system includes a housing body having an interior chamber and an opening. The cover is removably fitted to the opening using a set of slides. Each slider in the set of sliders has a fixed track secured to an inner surface of the housing body and a dynamic track connected to an inner surface of the cover. The cover slides between open and closed configurations on the dynamic track. One or more parts are also connected to the inner surface of the cover such that the one or more parts are accessible when the cover is opened.

Description

Background Art

[0001] In offshore operations, which include drilling and production operations, floating structures such as platforms or ships can be stationed at a water level above a well site located at the seabed. Surface equipment can be set on the floating structure to support and perform well operations, while subsea equipment can be set underwater to support and perform subsea well operations. For example, a blowout preventer (BOP) stack can be installed at the wellhead on the seabed, which can be used to control the flow of fluid from the well. Other subsea equipment can be provided with a blowout preventer or fluidly connected to a blowout preventer to assist in well operations and provide fluid communication between the well and the surface equipment. Depending on the well location and other operating parameters, the offshore system can be configured differently using different parts and part arrangements.

[0002] In order to control various underwater equipment in offshore operations, different types of control systems can be used, including hydraulic and electrical parts. The control parts for underwater equipment are usually controlled on the surface. For example, the control parts on the underwater equipment can be electrically connected to the surface control system, and the surface control system can be used to operate the underwater control parts. In some cases, the underwater equipment can be controlled using a remote operating vehicle (ROV), wherein the ROV can be sent underwater to automatically activate one or more functions on the underwater equipment. In other cases, the underwater equipment can be controlled using a shell system deployed to an underwater location. Summary of the invention

[0003] This Summary is provided to introduce some concepts that are further described below in the Detailed Description. This Summary is not intended to identify key or essential features of the claimed subject matter, nor is it intended to be used to help limit the scope of the claimed subject matter.

[0004] In one aspect, embodiments disclosed herein relate to a housing system comprising a housing body having an interior chamber and an opening. A cover is removably assembled to the opening using a set of slides. Each slide in the set of slides comprises a fixed track fastened to the interior surface of the housing body and a dynamic track connected to the interior surface of the cover so that the cover can slide on the dynamic track between an open and closed configuration. One or more internal parts of the housing system may also be connected to the interior surface of the cover so that when the cover is opened, one or more parts are accessible.

[0005] On the other hand, embodiments disclosed herein relate to methods for accessing parts within a housing system that includes one or more slidingly connected covers for opening or closing an opening of a housing body. The cover can be slidably connected to the housing body using a group of slides. An actuator can be used to slide the cover to open or close the opening of the housing body. The activation of the actuator can be automatic, wherein a signal sent from outside the housing body can be used to activate the actuator to open or close the cover.

[0006] Other aspects and advantages will be apparent from the following description and appended claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Specific embodiments of the disclosed technology will now be described in detail with reference to the accompanying drawings. For consistency, the same elements in the various figures are represented by the same reference numerals. The sizes and relative positions of the elements in the accompanying drawings are not necessarily drawn to scale. For example, the shapes and angles of the various elements are not necessarily drawn to scale, and some of these elements may be arbitrarily enlarged and positioned to improve the readability of the drawing. In addition, the specific shapes of the drawn elements are not necessarily intended to convey any information about the actual shape of the specific elements, and are selected only for easy identification in the accompanying drawings.

[0008] Figures 1A-1D A housing system is shown in accordance with one or more embodiments.

[0009] Figure 2 A flow chart of a method according to one or more embodiments is shown. DETAILED DESCRIPTION

[0010] In the following detailed description of the embodiments of the present disclosure, many specific details are set forth to provide a more comprehensive understanding of the present disclosure. However, it is apparent to one of ordinary skill in the art that the present disclosure can be implemented without these specific details. In other cases, well-known features are not described in detail to avoid unnecessarily complicating the description.

[0011] Throughout the application, ordinal numbers (e.g., first, second, third, etc.) may be used as adjectives for elements (i.e., any noun in the application). The use of ordinal numbers does not imply or create any particular order of elements, nor does it limit any element to being just a single element, unless explicitly disclosed, such as using the terms "before," "after," "single," and other such terms. Instead, ordinal numbers are used to distinguish elements. For example, a first element is different from a second element, and a first element may contain more than one element and be ranked after (or before) a second element in the ordering of the elements.

[0012] In the following Figure 1A-2In the description of the drawings, in the various embodiments disclosed herein, any part described with respect to a figure may be equivalent to one or more parts of the same name described with respect to any other figure. For the sake of brevity, the description of these parts will not be repeated for each figure. Therefore, each of the respective embodiments of the parts of each figure are incorporated by reference and are assumed to be optionally present in each other figure having one or more parts of the same name. In addition, according to the various embodiments disclosed herein, any description of the parts of the drawings should be interpreted as optional embodiments, which can be implemented in addition to, in combination with, or in place of the embodiments described for the corresponding parts of the same name in any other figure.

[0013] Embodiments of the present disclosure generally relate to a housing system for storing electronic equipment and a power module in a watertight environment, wherein the electronic equipment and the power module are connected to underwater equipment. In addition, embodiments of the present disclosure relate to a housing system with a slidable cover, wherein the housing system is powered by a hydraulic or electric actuator.

[0014] Figures 1A-1C A housing system 100 is shown according to one or more embodiments. The housing system 100 may include a housing body 102 having a hollow interior chamber and at least one opening leading to the interior chamber. In one or more embodiments, the housing body 102 may be cylindrical and hollow. For example, in Figure 1A In the illustrated embodiment, the housing body 102 may have a first end 104 and a second end 106, wherein each of the first end 104 and the second end 106 may have an opening to the interior chamber. In such an embodiment, the housing body 102 may have a tubular shape with an open axial end.

[0015] The hull body 102 can have very thick walls and can be very heavy. For example, in one or more embodiments, the hull body 102 can have walls with a thickness, for example, ranging between 0.5 inches and 1.5 inches (e.g., 1 inch thick), and the hull body 102 can weigh, for example, up to 2,500 pounds. Due to the weight and size of the hull system 100, a crane may be required to transport the hull system 100 between different locations, such as between a surface and an underwater location. Therefore, in some embodiments, one or more lifting connectors can be provided along the exterior of the hull system (e.g., on the exterior of the hull body 102 and / or the covers 108, 110), wherein a crane line can be connected to the lifting connector to carry the hull. The lifting connector can include, for example, a hook, a threaded connector, a loop, etc. In one or more embodiments, the lifting connector can be positioned around the hull in a position that allows the crane to lift, carry, and lower the hull in a generally consistent orientation so that the parts of the hull system also remain in a generally consistent position.

[0016] A first cover 108 can be removably mounted to the first end 104. In one or more embodiments, the first cover 108 can be sized so that it fits snugly into a receiving profile in the first end 104 of the housing body. In some embodiments, the diameter of the first cover 108 can be equal to the outer diameter of the first end 104 so that when the first cover 108 is positioned adjacent to the first end 104, the first cover 108 completely covers the first end 104. In a similar manner, a second cover 110 can be removably mounted to the second end 106.

[0017] In one or more embodiments, each cover 108, 110 can have a thickness and can be formed of a material (e.g., metal) that can withstand the high pressures present under the sea (e.g., pressures of 25 kilopounds per square inch (kpsi) or more). When the material and thickness of the cover are designed to achieve a high pressure rating, the weight of the cover can be greater than 400 pounds, such as at least 500 pounds or at least 600 pounds, depending on the diameter and thickness of the cover.

[0018] According to an embodiment of the present disclosure, each cover 108, 110 can be opened (to open and provide access to the openings at the ends 104, 106 of the housing body 102, respectively) and closed (to close and seal the openings at the ends 104, 106 of the housing body 102, respectively) using multiple sets of slides connected between each cover 108, 110 and the housing body 102. Each cover 108, 110 can be slidably connected to the housing body 102 using multiple slides at each end 104, 106 of the housing body 102. For example, the first set of slides 112 that slidably connects the first cover 108 to the first end 104 of the housing body 102 can include two, three, four, or more slides. Similarly, the second set of slides 116 that slidably connects the second cover 110 to the second end 106 of the housing body 102 can include two, three, four, or more slides. In each set of slides 112 , 116 , a plurality of slides may be positioned circumferentially around the inner surface of the housing body 102 , for example, evenly spaced, symmetrically positioned, or axisymmetrically positioned around the inner surface of the housing body 102 .

[0019] The slides for slidingly connecting the covers 108, 110 to the housing body 102 can include linear slide tracks that slide relative to each other along bearings (such as roller bearings, ball bearings and / or surface bearings). Track materials and sizes and bearing types and sizes can be selected to carry, for example, 400 pounds or more. In one or more embodiments, slides of the same type and size can be used in each set of slides 112, 116.

[0020] In one or more embodiments, Figure 1AAs shown, the first set of slides 112 can be fastened to the inner surface of the housing body 102 and to the inner surface 114 of the first cover 108 at the first end 104 to slide the first cover 108 to the first end 104 of the housing body 102. For example, each slide in the first set of slides 112 can include a fixed track and a dynamic track, the fixed track is fastened to the inner surface of the housing body 102 and the first end 104 near the housing, and the dynamic track is connected to the first cover 108. When assembled, the dynamic track can slide relative to the fixed track. In one or more embodiments, the inner surface 114 of the first cover 108 can be fastened to the end of the first set of slides 112 near the first end 104 of the housing, so that the first cover 108 can slide on the slide 112 to close against the first end 104 of the housing body 102. The first set of slides 112 can be assembled axially along the inner surface and the first set of slides 112, wherein the tracks of the slides can be positioned parallel to each other around the axial center of the housing body 102.

[0021] Similarly, the second set of slides 116 can be fastened to the inner surface of the housing body 102 at the second end 106. In one or more embodiments, the second set of slides 116 can be similar to the first set of slides 112 in design and positioning within the housing body 102 relative to the second end 106 (e.g., the slides 116 can be arranged within the housing as a "mirror image" of the slides 112). The inner surface 126 of the second cover 126 can be connected to the end of the second set of slides 112 so that the second cover 126 can slide toward and away from the housing body 102 via the second set of slides 116.

[0022] According to an embodiment of the present disclosure, one or more actuators 118 may be used to open and close the lids 108, 110, for example, two, three, four or more actuators 118 may operate together to open and close the lids 108, 110, respectively. In the case of using multiple actuators, they may be arranged so as to provide an equal and balanced load to each actuator (for example, two actuators are arranged 180 degrees apart, three actuators are arranged 120 degrees apart, etc.). In some embodiments, as Figure 1A As shown, two actuators 118 may be secured to an inner surface of the housing body 102 , wherein each actuator 118 may be configured to extend and retract the first cover 108 and the second cover 110 , respectively.

[0023] In some embodiments, the actuator can be integrated with the slide, wherein the actuator can slide the dynamic track of the slide (and therefore also slide the connected cover) relative to the fixed track of the slide. In some embodiments, the actuator can be directly connected between the housing body and the cover, wherein the actuator can push or pull the cover relative to the housing body, and the slide can be used to keep the cover axially aligned with the housing body when the cover is moved by the actuator. For example, the actuator body can be connected to the inner surface of the housing body, and the end of the actuator piston can be connected to the inner surface of the cover, wherein actuation of the piston moves the connected cover.

[0024] The actuator can be activated by an electrical signal. In some embodiments, via a wired connection, an electrical signal can be sent from the outside of the housing system to an electronic module inside the housing to activate the actuator, and then via another wired connection between the electronic module and the actuator, an electrical signal is sent from the electronic module to the actuator to activate the actuator. In some embodiments, via a wired connection, an electrical signal can be sent directly from the outside of the housing system to the actuator inside the housing to activate the actuator. In addition, in one or more embodiments, the electrical signal that stops the actuator can be used to limit the movement of the actuator. For example, when the position of the cover is closed against the housing body 102, an electrical stop can be used to stop the actuator. In some embodiments, when the cover is closed against the housing body, the physical restriction of the cover contacting the housing body can act as a physical stop to the movement of the slide.

[0025] In one or more embodiments, the actuator 118 can be a hydraulic actuator that uses hydraulic fluid to power the extension and retraction of the first cover 108 and the second cover 110. In other embodiments, the actuator 118 can be an electric actuator or a pneumatic actuator. When a pneumatic or hydraulic actuator is used, a container for holding a compressed gas or hydraulic fluid, respectively, can be held in the housing body, close to the actuator or integrated with the actuator. For example, the actuator can be electrically driven via a connection to a power module in the housing system.

[0026] According to one or more embodiments, the actuator 118 can supply sufficient energy to extend and retract the first cover 108 and the second cover 110, and also supply sufficient energy to maintain the seal of the first cover 108 and the second cover 110 with the shell body 102 during transportation of the shell system 100. For example, due to the weight and size of the shell system 100, a crane may be required to transport the shell system 100 between locations on the surface and under the sea. Therefore, the actuator 118 can provide sufficient energy to secure the first cover 108 and the second cover 110 to the shell body 102 for the duration that the shell system 100 is in the air during transportation by the crane.

[0027] although Figure 1A-B embodiment shows actuator 118, but in one or more embodiments, the cover can be slidably connected to the housing body via a plurality of slides without any actuator. For example, in such an embodiment, the cover can be slidable between the open and closed positions by hand or an external mechanical mechanism.

[0028] In some embodiments, threaded features, such as bolts, latches, or fasteners, are not required to fasten the first cover 108 and the second cover 110 to the hull body 102. For example, in one or more embodiments, as described above, during transportation of the hull system 100, an actuator can be used to hold each of the first cover 108 and the second cover 110 against the hull body 102. In addition, when the hull system 100 is used in a subsea environment, the subsea pressure surrounding the hull system 100 can exert pressure on the covers 108, 110, which keeps the covers 108, 110 against the hull body 102.

[0029] In some embodiments, one or more seals may be provided between the covers 108, 110 and the housing body 102 to provide a watertight seal. For example, one or more o-rings, sealing surfaces, or other types of seals may be provided between the inner surface of the cover and the interface end surface of the end of the housing body.

[0030] Now turn to Figure 1B , the electronic module 120 can be fastened to the inner surface 114 of the first cover 108. In one or more embodiments, sliding the first cover 108 from the housing body 102 using the first set of slides 112 can allow easy access to the electronic module 120. The wiring carrier 122 can extend from the electronic module 120 within the housing body 102 to one or more electronic connectors 127 ( Figure 1A ). The electronic connector 127 can be exposed to the exterior of the housing body 102 so that when the first cover 108 is in the retracted / closed position, the electronic connector 127 can provide an electrical connection through the wall of the housing body 102 from the exterior of the housing body 102 to the interior of the housing body 102. In one or more embodiments, the wiring carrier 122 can connect equipment located outside the housing system 100 (e.g., subsea equipment) with the electronic module 120.

[0031] In some embodiments, electronic signals may be sent to the electronic module 120 and wiring carrier 122 within the housing body 102 via the electronic connector 127 to open or close the lid 108, 110. For example, in some embodiments, when the lid is closed against the housing body, a signal may be sent from the outside of the housing body 102 to the electronic module 120 (via the electronic connector 127 and wiring carrier 122) to activate the actuator 118 and open the lid. In some embodiments, when the lid is open, access to the interior of the housing body is provided, and a signal may be sent from the outside of the housing body to activate the actuator inside the housing body and close the lid. The signal sent from the outside of the housing body to activate the actuator inside the housing may be sent to the electronic module 120, where the electronic module 120 may then activate the actuator (via wired or wireless communication), or the signal may be sent from the outside of the housing body via a wired connection between the electronic connector 127 and the actuator 118. In embodiments where an electrical signal is used to open or close the lid of the housing system, the lid may be automatically opened and closed at selected times.

[0032] Now turn to Figure 1C , the power module 124 can be fastened to the inner surface 126 of the second cover 110. In one or more embodiments, the power module 124 can include a power supply 128 and a dynamic heat sink, and when the power supply moves with the second cover 110 relative to the housing body 102, the dynamic heat sink can provide a heat sink for the power supply 128. For example, in one or more embodiments, the dynamic heat sink includes a group of dynamic fins 130 connected to the power supply 128 and a group of fixed fins 132 connected to the housing body 102. The group of dynamic fins 130 and the group of fixed fins 132 can be configured to slidably interlock with each other, forming a heat sink that can provide heat conduction from the power source to the housing body. The slidable connection between the dynamic fin group 130 and the fixed fin group 132 can allow a constant connection between the fins. In one or more embodiments, the power supply 128 can be a battery. A large amount of grease can also be used in the power module 124 to improve heat dissipation. In addition, in some embodiments, the power module 124 can include a fan to help heat dissipate from the power module 124.

[0033] Figure 1A -C shows an example of a housing system 100 designed for operation in a horizontal orientation, wherein the lids 108, 110 can be opened and closed when the central axis of the housing body 102 is oriented to be approximately parallel to the water surface. In such an embodiment, approximately equal amounts of force can be applied to the lids (taking into account the weight differences due to the electronic modules and the power modules connected to each lid) to open and close the lids. For example, the actuators 118 on opposite ends of the housing system can apply approximately equal amounts of force to the lids at the ends of their respective housings to open or close the lids.

[0034] In certain embodiments, such as Figure 1D As shown, the housing system 100 can be designed for operation in a vertical orientation, wherein when the central axis of the housing body 102 is oriented to be approximately perpendicular to the water surface, the lids 108, 110 can be opened and closed. In such an embodiment, when the lid is opened and closed, forces of different sizes can be applied to the lid to counteract the gravity acting on the lid. For example, in order to counteract gravity, a greater force can be applied to open the lid at the end of the housing oriented in the highest position when compared to the magnitude of the force required to open the lid at the end of the housing oriented in the lowest position. Conversely, in order to counteract gravity, a greater force can be applied to close the lid at the end of the housing oriented in the lowest position when compared to the force required to close the lid at the end of the housing oriented in the highest position.

[0035] In embodiments where the housing system is positioned in a vertical orientation, lifting connections may be provided at three or more locations around the exterior of the housing system (e.g., at least two lifting connections on opposite sides of the exterior of the housing body and at least one lifting connection on the exterior of the lid) so that the housing can be maintained in a vertical orientation when a crane is connected to the housing and moves the housing. When the housing is lowered by the crane in a vertical orientation, the crane lines may be disconnected from the housing before the lid is opened at the highest position of the housing system.

[0036] like Figure 1A -D, the electronic module 120 and the power module 124 are fastened to the first cover 108 and the second cover 110, respectively, so that each module 120, 124 can be easily slid into and out of the opposite end of the housing body 102. Sliding the modules 120, 124 out of the housing body 102 can allow for easy access and maintenance, while sliding the modules 120, 124 into the housing body 102 can allow for protection of the modules 120, 124 from the external environment.

[0037] Although in Figure 1A -D shows a housing system 100 in which two slidably connected covers are provided to provide access to modules 120, 124 at opposite ends of the housing, but other modules and configurations may be used in a similar manner to provide access to one or more modules via one or more covers slidably connected to the housing. For example, in some embodiments, the housing system may have a single cover that is slidably connected to the housing body via a group of slides, wherein one or more modules (e.g., a power module and an electronic module) are connected to the inner surface of the cover. In some embodiments, the housing system may have more than two covers that are slidably connected to the housing body via slides, wherein one or more modules are connected to the inner surface of each cover. One or more covers may be slidably connected to the housing body in the same manner as described above, and an actuator may or may not be used to open and close the cover.

[0038] In the area of ​​the inner surface between the slider connectors connected to the inner surface, modules 120, 124 or other internal components of the housing system can be connected to the inner surface of the cover. As described above, the slider can include a dynamic track that is connected to the inner surface of the cover at one end. The connection between the dynamic track and the inner surface can be at or near the periphery of the inner surface. A plurality of track connectors can be arranged at positions spaced apart around the periphery of the inner surface of the cover. Modules 120, 124 or other internal parts of the housing system (e.g., at or near the center area of ​​the inner surface) can be connected to the area of ​​the inner surface inside the track connector.

[0039] Figure 2 Depicted is a flow chart according to one or more embodiments. More specifically, Figure 2 A flowchart 200 of a method for operating a housing system according to an embodiment of the present disclosure is depicted. Figure 2 One or more blocks in the Figures 1A-1D Although Figure 2 The various blocks in the embodiment are presented and described in sequence, but those skilled in the art will appreciate that some or all of the blocks may be executed in different orders, may be combined, may be omitted, and some or all of the blocks may be executed in parallel. In addition, the blocks may be executed actively or passively.

[0040] Initially, S202, the hull system 100 may be set up at a surface location. For example, the hull system 100 may be removed from the subsea environment and set up at the surface location for maintenance. The hull system 100 may include a hull body 102, a first cover 108, and a second cover 110. In one or more embodiments, removing the hull system 100 from the subsea environment may include using a crane to grab the hull system 100 and lift it from the subsea location to a surface facility. For example, the surface facility may refer to a drilling rig or a drilling ship.

[0041] In the surface position, one or both covers 108, 110 can be opened to access the modules 120, 124 in the housing system. For example, two actuators 118 fastened to the inner surface of the housing body 102 can be operated to open the covers 108, 110. In one or more embodiments, the two actuators 118 can be hydraulically driven. In other embodiments, the two actuators 118 can be electrically driven. In one or more embodiments, operating the two actuators 118 can include sliding the first cover 108 and the second cover 110 between a retracted (e.g., closed) position and an extended (open) position. S204, using the first of the two actuators 118, the first cover 108 can be extended along the first set of slides 112 away from the first end 104 of the housing body 102. In addition, S206, using the second of the two actuators 118, the second cover 110 can be extended along the second set of slides 116 away from the second end 106 of the housing body 102.

[0042] In one or more embodiments, the actuator can be activated from a position outside the housing. For example, when the housing system is in a surface position, an operator can send a signal (e.g., via a computer system) to activate the actuator to open the cover. When one or more covers are open, access to the interior of the housing system is provided, and one or more components in the housing system can be monitored, tested, repaired, inspected, or otherwise approached. After completing access to the parts in the housing system, the operator can then send a signal to activate the actuator to close the cover.

[0043] In one or more embodiments, after accessing the internal parts of the housing system 100 and closing the cover of the housing system, a crane or other heavy machine handling device can be used to move the housing system. In one or more embodiments, one or more actuators can be used to hold the cover in a closed position while the housing system is moved. Advantageously, by using an actuator to hold the cover closed during surface movement, other cover connection mechanisms such as bolts, latches, or threaded connections can be eliminated.

[0044] Furthermore, by using a slide to slidably connect the cover to the housing body, bolts or other alignment posts may not be used because the slide may be used to slidably connect the cover to the housing body and maintain the cover in axial alignment with the housing body.

[0045] While the present disclosure has been described with respect to a limited number of embodiments, those skilled in the art, having benefit of this disclosure, will appreciate that other embodiments can be conceived without departing from the scope of the present disclosure as described herein. Accordingly, the scope of the present disclosure should be limited only by the appended claims.

Claims

1. A housing system, comprising: The housing body comprises: internal chamber; and an opening at the first end and the second end; a first cover removably mounted to the first end; a second cover removably mounted to the second end; a first set of slides secured to an inner surface of the housing body and an inner surface of the first cover; as well as A second set of slides is secured to an inner surface of the housing body and an inner surface of the second cover. 2 . The housing system of claim 1 , further comprising a first actuator and a second actuator, the first actuator being configured to extend and retract the first set of slides, the second actuator being configured to extend and retract the second set of slides.

3. The housing system of claim 1, wherein the first actuator and the second actuator are selected from the group consisting of electric actuators, pneumatic actuators, and hydraulic actuators.

4. The housing system of claim 1, wherein the electronics module is secured to an inner surface of the first cover and the power module is secured to an inner surface of the second cover.

5. The housing system according to claim 4, wherein: A wiring carrier extends from the electronics module to an electronics connector on the exterior of the housing body.

6. The housing system according to claim 4, wherein: The power module comprises: power supply; Grouped dynamic fins; and Fins fixed in groups, The set of dynamic fins and the set of fixed fins are configured to slidably interlock with each other to form a heat sink.

7. The housing system according to claim 6, wherein: The power module also includes a fan.

8. The housing system of claim 6, wherein the power module further comprises a volume of grease.

9. The housing system of claim 6, wherein the power source is a battery.

10. The housing system of claim 1, further comprising at least one seal positioned on at least one of an interior surface of the first cover and an interface end surface of the first end.

11. The enclosure system of claim 1, wherein each of the first cover and the second cover weighs more than 400 pounds.

12. A method comprising: Set up the hull system at the water surface. wherein the housing system comprises a housing body and a first cover slidably connected to the housing body; an actuator operatively secured to an inner surface of the housing body; and Using an actuator, the first cover is extended along the first set of slides away from the first end of the housing body.

13. The method of claim 12, wherein the housing system further comprises a second cover slidably connected to the housing body, the method further comprising extending the second cover along a second set of slides away from the second end of the housing body using a second actuator.

14. The method of claim 12, wherein operating the actuator comprises electrically operating the actuator to slide the first cover to the retracted position and the extended position.

15. The method of claim 12, wherein operating an actuator comprises hydraulically operating an actuator to slide the first cover between a retracted position and an extended position.

16. The method of claim 12, further comprising moving the hull system from the subsea environment to the surface location using a crane to grab the hull system from the subsea location and lift the hull system to the surface facility.

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