Abstract:
A BOP cart includes a platform including at least one mounting position adapted to receive the bottom of a BOP and a cart back extending generally perpendicular to the platform. The cart back includes at least one mounting feature positioned to secure the BOP to the BOP cart.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
       [0001]    This application is a non-provisional application which claims priority from U.S. provisional application No. 61/763,194, filed Feb. 11, 2013. 
     
    
     FIELD OF THE DISCLOSURE 
       [0002]    The present disclosure relates generally to equipment protection apparatuses, and specifically to protection and shipping of blowout preventers. 
       BACKGROUND OF THE DISCLOSURE 
       [0003]    A blowout preventer, or “BOP,” is a large, specialized valve or similar mechanical device used to seal, control and monitor oil and gas wells. Blowout preventers are critical to the safety of crew, rig, and environment, and to the monitoring and maintenance of well integrity; thus blowout preventers are intended to be fail-safe devices. An apparatus is used to transport this critical piece of equipment to and from the drilling site. 
       SUMMARY 
       [0004]    The present disclosure provides for a BOP cart for transporting and storing a Blow Out Preventer (BOP). The BOP cart may include a platform, the platform including at least one mounting position adapted to receive the bottom of the BOP. The BOP cart may also include a cart back, the cart back extending generally perpendicular to the platform, the cart back including at least one mounting feature positioned to secure the BOP to the BOP cart. 
         [0005]    The present disclosure also provides for a method of transporting a BOP. The method may include providing a BOP cart. The BOP cart may include a platform, the platform including at least one mounting position adapted to receive the bottom of the BOP. The BOP cart may also include a cart back, the cart back extending generally perpendicular to the platform, the cart back including at least one mounting feature positioned to secure the BOP to the BOP cart. The method may also include positioning the BOP cart in a vertical position such that the cart back is generally vertical and the platform is generally horizontal; positioning the BOP on the platform; securing the BOP to the at least one mounting feature; positioning the BOP cart in a horizontal position such that the cart back is generally horizontal and the platform is generally vertical; and transporting the BOP cart. 
         [0006]    The present disclosure also provides for a BOP cart for transporting and storing a Blow Out Preventer (BOP). The BOP cart may include a platform. The platform may include at least one mounting position adapted to receive the bottom of the BOP, the mounting position forming a generally circular depression, the generally circular depression positioned to mate with the BOP; a plurality of holes, the plurality of holes positioned to receive one or more fasteners, the fasteners positioned to couple the BOP to the platform, the plurality of holes allowing the BOP to be mounted to the platform in more than one orientation; at least one platform leg, the platform leg positioned generally parallel to the platform, the at least one platform leg adapted to allow the BOP cart to rest on the platform leg when the BOP cart is in a vertical position. The BOP cart may also include a cart back. The cart back may extend generally perpendicular to the platform. The cart back may include two uprights, the two uprights joined by at least one brace; a hoist point, the hoist point adapted to permit the BOP cart to be hoisted; a retaining collar, the retaining collar positioned to be coupleable to the BOP to secure the BOP to the BOP cart; at least one auxiliary leg, the auxiliary leg extending from the cart back in a direction other than the direction of the platform, the auxiliary leg is pivotably coupled to the cart back, so that the auxiliary leg may be pivoted upright and retained to the cart back. The BOP cart may be dimensioned such that the width of the BOP cart is less than 8′6″ and the height of the BOP cart is less than 9′6″ when in the BOP cart is in a horizontal position. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0007]    The present disclosure is best understood from the following detailed description when read with the accompanying figures. It is emphasized that, in accordance with the standard practice in the industry, various features are not drawn to scale. In fact, the dimensions of the various features may be arbitrarily increased or reduced for clarity of discussion. 
           [0008]      FIG. 1  is a depiction of an apparatus for transporting a BOP that is consistent with at least one embodiment of the present disclosure. 
           [0009]      FIG. 2  is a depiction of the apparatus for transporting a BOP of  FIG. 1  in the transport position. 
       
    
    
     DETAILED DESCRIPTION 
       [0010]    It is to be understood that the following disclosure provides many different embodiments, or examples, for implementing different features of various embodiments. Specific examples of components and arrangements are described below to simplify the present disclosure. These are, of course, merely examples and are not intended to be limiting. In addition, the present disclosure may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. 
         [0011]      FIG. 1  depicts BOP cart  1  consistent with at least one embodiment of the present disclosure. BOP cart  1  may include BOP cart back  20  and Platform  30 . Platform  30  may extend generally perpendicularly from BOP cart back  20 .  FIG. 1  depicts BOP cart  1  in an upright position, with platform  30  horizontal and BOP cart back  20  in a vertical position. This position may be used, for instance, when mounting or storing BOP  100 . Platform  30  may be positioned such that BOP  100  may be placed thereon. 
         [0012]    When transporting BOP  100 , on a truck, railcar or boat, BOP cart  1  may be positioned on its side, such that platform  30  may be generally vertical and BOP cart back  20  may be generally horizontal as depicted in  FIG. 2 . The process of transporting BOP  100  on BOP cart  1  may be termed “tailboarding.” 
         [0013]    BOP cart back  20  may, as depicted in  FIG. 1 , include one or more uprights  22 . Uprights  22  may be coupled to platform  30  by, for example and without limitation, bolting or welding. Uprights  22  may be coupled together at the end opposite platform  20  by hoist point  40 . Hoist point  40  may be positioned to allow BOP cart  1  to be hoisted by, for example and without limitation, a winch or crane. In certain embodiments, BOP cart back  20  may include one or more braces. In the embodiment depicted in  FIG. 1 , BOP cart back  20  as depicted may include top brace  5 , center brace  6 , and bottom brace  3  which may extend between the uprights  22 . Braces  5 ,  6 ,  3  may be coupled to uprights  22  by, for example, bolting or welding. Top brace  5 , center brace  6 , and bottom brace  3  may provide rigidity to BOP cart back  20 . 
         [0014]    In some embodiments, BOP cart  1  may include an assembly to secure BOP  100  to BOP cart  1 . For example, as depicted in  FIG. 1 , retaining collar  4  may be coupled to BOP cart  1 , and may be positioned to couple to BOP  100  placed on BOP cart  1 . In some embodiments, retaining collar  4  may extend substantially perpendicularly to top brace  5 . Retaining collar  4  may include a retaining ring positioned to encircle a portion of BOP  100  and serve to support and/or hold BOP  100  in place during transport or storage. 
         [0015]    In some embodiments, BOP cart  1  may include one or more platform legs  10 . Platform legs  10  may be coupled to platform  30 , and may be positioned to permit BOP cart  1  to, for example, add stability when BOP cart  1  is in the vertical position. In some embodiments, one or more auxiliary legs  7  may be coupled to BOP cart  1 . In some embodiments, auxiliary legs  7  may be coupled to BOP cart  1  and may extend in the direction opposite of platform  30 . In some embodiments, one or more auxiliary legs  7  may be pivotably coupled to BOP cart  1 , such that they may, for example, fold out of the way when BOP cart  1  is placed into the horizontal position. Likewise, when in the “flipped up” configuration, auxiliary legs  7  may be positioned to increase stability of BOP cart  1  when BOP cart  1  is in the horizontal position. In some embodiments, auxiliary legs  7  may include a retention feature to couple them in the “flipped up” configuration. In some embodiments, such as that depicted in  FIG. 1 , pins  6  may be used to do so. 
         [0016]    In some embodiments of the present disclosure, platform  30  may include one or more holes  32  positioned to, for example, receive bolts, screws or other mechanisms designed to couple BOP  100  and platform and hold BOP  100  in place. Holes  32  may be positioned such that BOP  100  may be selectively disengaged from platform  9 . In some embodiments, a plurality of holes  32  may be included, such that BOP  100  may be mounted to BOP cart  1  in more than one rotational orientation. In some embodiments, platform  30  may include recess  50 , positioned to generally mate with the profile of BOP  100 . 
         [0017]    In some embodiments, BOP cart  1  may have dimensions that are within certain specifications. For example, US Department of Transportation and certain states have rules limiting the length, width, and height of a transported container. In certain of these jurisdictions, the maximum height of a non-permitted load is 13′6″ and a width of not greater than 8′6″. The typical height of most trailer transports is 4′. In certain embodiments of the present disclosure, BOP cart  1  is designed to transport BOP  100  and maintain BOP  100  and BOP cart  1  within these height and width limitations. In these embodiments, the edge to edge distance of distance  12  of platform legs  10  may be less than 8′6″ and the BOP cart back outer edge to platform end edge distance  14  may be less than 9′6″. Further, BOP  100  may be rotated and engaged in holes  32  to position BOP  100  in such a way that any extensions of BOP  100  do not extend further than either 13′6″ high or 8′6″ wide when in transport. 
         [0018]    The foregoing outlines features of several embodiments so that a person of ordinary skill in the art may better understand the aspects of the present disclosure. Such features may be replaced by any one of numerous equivalent alternatives, only some of which are disclosed herein. One of ordinary skill in the art should appreciate that they may readily use the present disclosure as a basis for designing or modifying other processes and structures for carrying out the same purposes and/or achieving the same advantages of the embodiments introduced herein. One of ordinary skill in the art should also realize that such equivalent constructions do not depart from the spirit and scope of the present disclosure and that they may make various changes, substitutions, and alterations herein without departing from the spirit and scope of the present disclosure.