Abstract:
A method for installing rig structure (e.g. cabin, house, a doghouse) on a drilling rig, the method including: connecting support apparatus to a substructure of a drilling rig, supporting a drilling floor; moving a movement apparatus supporting a rig structure to position it adjacent the support apparatus, by moving movement apparatus on ground adjacent the substructure, moving the support apparatus into a connecting orientation with respect to the structure; connecting raising apparatus to the structure, the raising apparatus connected to the support apparatus; raising the structure up to the drill floor with the raising apparatus; and securing the structure to the support apparatus. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     This invention is directed to drilling rigs; drilling rigs with structure thereon such as a doghouse, driller&#39;s cabin, building, or electrical control house; and to methods for installing such structures on a rig. 
     2. Description of Related Art 
     The prior art discloses a variety of rigs used in drilling and various wellbore operations; for example, and not by way of limitation, U.S. Pat. Nos. 3,340,938; 3,807,109; 3,922,825; 3,942,593; 4,269,395; 4,290,495; 4,368,602; 4,489,526; 4,569,168; 4,837,992; 6,634,436; 6,523,319 and 7,306,055 and the references cited in these patents—all these patents incorporated fully herein for all purposes. The prior art discloses a variety of systems and methods for assembling and raising components of a drilling rig; for example, and not by way of limitation nor as an exhaustive listing, the disclosures in U.S. Pat. Nos. 2,993,570; 3,201,091; 3,262,237; 3,749,183; 4,221,088; 4,269,009; 4,292,772; 4,305,237; 4,478,015; 4,587,778; 4,630,425; and 4,932,175. 
     Often drilling rigs and related systems, structures, equipment, and apparatuses are delivered to a site, assembled, raised, disassembled, and transported to a new site. It is important that drilling rigs and their components be easily transported and assembled. 
     Many components and structures used with a rig are raised by a crane and positioned on a rig&#39;s drill floor. Various problems and disadvantages are associated with installing structure, e.g. a doghouse, on a rig using a crane. A crane is typically a large apparatus which is transported to a drilling site where it is assembled and/or made ready for lifting and locating rig components. 
     BRIEF SUMMARY OF THE INVENTION 
     The present invention, in certain aspects, provides a drilling rig with structure manipulation and raising apparatus and methods for using such apparatus to raise and install a structure on a drilling rig without using a crane, without winching up cables, and without lifting with a drawworks system. 
     In certain aspects, the present invention discloses a system including lifting apparatus on a rig for engaging a structure (building, house, cabin, doghouse) on a trailer (or other similar support), lifting the structure from the trailer, and moving the structure onto the drill floor. In this method the structure is installed without using a crane, cables, or a drawworks. 
     The present invention discloses, in certain aspects, methods for installing a rig structure on a drilling rig, the methods including: positioning a rig structure on a movement apparatus adjacent a rig support apparatus; moving the support apparatus into a connecting orientation with respect to the rig structure, the support apparatus having raising apparatus connected thereto; connecting the raising apparatus to the rig structure; and raising the rig structure with the raising apparatus. In certain aspects, the rig structure is a house, doghouse, cabin, driller cabin, and electrical control house. 
     The present invention discloses, in certain aspects, handling systems for securing a rig structure to a drilling rig, the handling systems including: movement apparatus for initially supporting a rig structure and for moving on ground adjacent a drilling rig to position the rig structure with respect to the drilling rig, the drilling rig having a substructure with a drill floor; support apparatus movably connected to the drill floor for selectively supporting the rig structure, the support apparatus movable out of the way to facilitate positioning of the rig structure with respect to the drill floor and the support apparatus movable adjacent the rig structure for connection thereto; and raising apparatus connected to the support apparatus, the raising apparatus for selectively raising the rig structure with respect to the drill floor. In certain aspects, the rig structure is a house, doghouse, cabin, driller cabin, and electrical control house. 
     The present invention, in certain aspects, discloses a method for installing a rig structure on a drilling rig, the method including: positioning a rig structure on a movement apparatus (e.g. a trailer pulled by a truck) adjacent a support apparatus, the support apparatus connected to a substructure of a drilling rig, the support apparatus movably connected to the substructure, the substructure supporting a drilling floor, this positioning effected by moving the movement apparatus on ground adjacent the substructure; moving the support apparatus into a connecting orientation with respect to the rig structure, the support apparatus having raising apparatus connected thereto; connecting the raising apparatus to the rig structure; and raising the rig structure with the raising apparatus. 
     The present invention discloses, in certain aspects, a handling system for installing a rig structure on a drilling rig, the handling system including movement apparatus for initially supporting a rig structure and for moving on ground adjacent a drilling rig to position the rig structure with respect to the drilling rig, the drilling rig having a substructure with a drill floor; support apparatus movably connected to the drill floor for selectively supporting the rig structure, the support apparatus movable out of the way to facilitate positioning of the rig structure with respect to the drill floor and the support apparatus movable adjacent the rig structure for connection thereto; and raising apparatus connected to the support apparatus, the raising apparatus for selectively raising the rig structure with respect to the drill floor. 
     Accordingly, the present invention includes features and advantages which are believed to enable it to advance drilling rig technology and rig structure installation technology. Characteristics and advantages of the present invention described above and additional features and benefits will be readily apparent to those skilled in the art upon consideration of the following detailed description of preferred embodiments and referring to the accompanying drawings. 
     Certain embodiments of this invention are not limited to any particular individual feature disclosed here, but include combinations of them distinguished from the prior art in their structures, functions, and/or results achieved. Features of the invention have been broadly described so that the detailed descriptions that follow may be better understood, and in order that the contributions of this invention to the arts may be better appreciated. There are, of course, additional aspects of the invention described below and which may be included in the subject matter of the claims to this invention. Those skilled in the art who have the benefit of this invention, its teachings, and suggestions will appreciate that the conceptions of this disclosure may be used as a creative basis for designing other structures, methods and systems for carrying out and practicing the present invention. The claims of this invention are to be read to include any legally equivalent devices or methods which do not depart from the spirit and scope of the present invention. 
     What follows are some of, but not all, the objects of this invention. In addition to the specific objects stated below for at least certain preferred embodiments of the invention, there are other objects and purposes which will be readily apparent to one of skill in this art who has the benefit of this invention&#39;s teachings and disclosures. It is, therefore, an object of at least certain preferred embodiments of the present invention to provide the embodiments and aspects listed above and: 
     New, useful, unique, efficient, non-obvious drilling rigs; rig structure installation methods; and new, useful, unique, efficient, nonobvious rig structure installation apparatus and methods; and 
     Such systems with rig structure lifting apparatus for raising a structure (e.g., but not limited to, a doghouse or cabin) and moving the structure level with a drill floor; and 
     Such systems and methods in which a rig structure is moved, raised, and secured to a rig without using a crane without winching up cables, and without using a drawworks to lift the structure. 
     The present invention recognizes and addresses the problems and needs in this area and provides a solution to those problems and a satisfactory meeting of those needs in its various possible embodiments and equivalents thereof. To one of skill in this art who has the benefits of this invention&#39;s realizations, teachings, disclosures, and suggestions, various purposes and advantages will be appreciated from the following description of preferred embodiments, given for the purpose of disclosure, when taken in conjunction with the accompanying drawings. The detail in these descriptions is not intended to thwart this patent&#39;s object to claim this invention no matter how others may later attempt to disguise it by variations in form or additions of further improvements. 
     The Abstract that is part hereof is to enable the U.S. Patent and Trademark Office and the public generally, and scientists, engineers, researchers, and practitioners in the art who are not familiar with patent terms or legal terms of phraseology to determine quickly from a cursory inspection or review the nature and general area of the disclosure of this invention. The Abstract is neither intended to define the invention, which is done by the claims, nor is it intended to be limiting of the scope of the invention or of the claims in any way. 
     It will be understood that the various embodiments of the present invention may include one, some, or all of the disclosed, described, and/or enumerated improvements and/or technical advantages and/or elements in claims to this invention. 
    
    
     
       BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS 
       A more particular description of embodiments of the invention briefly summarized above may be had by references to the embodiments which are shown in the drawings which form a part of this specification. These drawings illustrate certain preferred embodiments and are not to be used to improperly limit the scope of the invention which may have other equally effective or equivalent embodiments. 
         FIG. 1A  is a side view of part of a drilling rig according to the present invention. 
         FIG. 1B  is an end view of the rig  FIG. 1A . 
         FIG. 1C  is a top view of the rig of  FIG. 1A . 
         FIG. 1D  is a top view of part of a rig like the rig of  FIGS. 1A-2A . 
         FIG. 1E  is a side view showing a connection of parts of the rig of  FIG. 1D  after installation and  FIG. 1E  is a view along line A-A of  FIG. 1D . 
         FIG. 1F  is a side view showing a connection of parts of the rig of  FIG. 1D  before installation. 
         FIG. 1G  is a side view showing a connection of parts of the rig of  FIG. 1D  after installation and  FIG. 1G  is a view along line B-B of  FIG. 1D . 
         FIG. 1H  is a side view showing a connection of parts of the rig of  FIG. 1D  before installation. 
         FIG. 1I  is a side view showing a connection of parts of the rig of  FIG. 1D  after installation and  FIG. 1I  is a view along line C-C of  FIG. 1D . 
         FIG. 1J  is a side view showing a connection of parts of the rig of  FIG. 1D  before installation. 
         FIG. 1K  is a side view showing a connection of parts of the rig of  FIG. 1D  after installation and  FIG. 1K  is a view along line D-D of  FIG. 1D . 
         FIG. 1L  is a side view showing a connection of parts of the rig of  FIG. 1D  before installation. 
         FIG. 2A  is an enlarged top view of the rig of  FIG. 1C . 
         FIG. 2B  is an enlarged side view of the rig of  FIG. 1C . 
         FIG. 3A  is a side view illustrating a step of a method according to the present invention. 
         FIG. 3B  is an end view of the step of  FIG. 3A . 
         FIG. 3C  is a top view of the step of  FIG. 3A . 
         FIG. 4A  is a side view illustrating a step in the method according to the present invention following the step of  FIG. 3A . 
         FIG. 4B  is an end view of the step of  FIG. 4A . 
         FIG. 4C  is a top view illustrating the step of  FIG. 4A . 
         FIG. 5A  is a side view illustrating a step in the method according to the present invention following the step of  FIG. 4A . 
         FIG. 5B  is an end view of the step of  FIG. 5A . 
         FIG. 5C  is a top view of the step of  FIG. 5A . 
         FIG. 5D  is an enlarged view of part of the rig shown in the step of  FIG. 5A . 
         FIG. 6A  is a side view illustrating a step in the method according to the present invention following the step of  FIG. 5A . 
         FIG. 6B  is an end view illustrating the step of  FIG. 6A . 
         FIG. 6C  is a top view of the step of  FIG. 6A . 
         FIG. 6D  is an enlarged view of part of the rig in the step of  FIG. 6A . 
         FIG. 7A  is a side view illustrating a rig raised in the method according to the present invention with a doghouse installed on the rig. 
         FIG. 7B  is an end view of the rig of  FIG. 7A . 
         FIG. 7C  is a top view of the rig of  FIG. 7A . 
         FIG. 8A  is a side view of part of a drilling rig according to the present invention. 
         FIG. 8B  is an end view of the rig  FIG. 8A . 
         FIG. 8C  is a top view of the rig of  FIG. 8A . 
         FIG. 8D  is an enlarged side view of part of the rig of  FIG. 8A . 
         FIG. 8E  is a side view of part of the rig of  FIG. 8A . 
         FIG. 8F  is a side view of part of the rig of  FIG. 8E . 
         FIG. 8G  is a top view of the rig shown in  FIG. 8E . 
         FIG. 8H  is a top view of part of the rig shown in  FIG. 8F . 
         FIG. 9A  is a side view illustrating a step of a method according to the present invention. 
         FIG. 9B  is an end view of the step of  FIG. 9A . 
         FIG. 9C  is a top view of the step of  FIG. 9A . 
         FIG. 10A  is a side view illustrating a step in the method according to the present invention following the step of  FIG. 9A . 
         FIG. 10B  is an end view of the step of  FIG. 10A . 
         FIG. 10C  is a top view illustrating the step of  FIG. 10A . 
         FIG. 11A  is a side view illustrating a step in the method according to the present invention following the step of  FIG. 10A . 
         FIG. 11B  is an end view of the step of  FIG. 11A . 
         FIG. 11C  is a top view of the step of  FIG. 11A . 
         FIG. 12A  is a side view illustrating a step in the method according to the present invention following the step of  FIG. 11A . 
         FIG. 12B  is an end view illustrating the step of  FIG. 12A . 
         FIG. 12C  is a top view of the step of  FIG. 12A . 
         FIG. 13A  is a side view illustrating a rig raised in a method according to the present invention with a doghouse installed on the rig. 
         FIG. 13B  is an end view of the rig of  FIG. 13A . 
         FIG. 13C  is a top view of the rig of  FIG. 13A . 
     
    
    
     Presently preferred embodiments of the invention are shown in the above-identified figures and described in detail below. Various aspects and features of embodiments of the invention are described below and some are set out in the dependent claims. Any combination of aspects and/or features described below or shown in the dependent claims can be used except where such aspects and/or features are mutually exclusive. It should be understood that the appended drawings and description herein are of preferred embodiments and are not intended to limit the invention or the appended claims. On the contrary, the intention is to cover all modifications, equivalents and alternatives falling within the spirit and scope of the invention as defined by the appended claims. In showing and describing the preferred embodiments, like or identical reference numerals are used to identify common or similar elements. The figures are not necessarily to scale and certain features and certain views of the figures may be shown exaggerated in scale or in schematic in the interest of clarity and conciseness. 
     As used herein and throughout all the various portions (and headings) of this patent, the terms “invention”, “present invention” and variations thereof mean one or more embodiment, and are not intended to mean the claimed invention of any particular appended claim(s) or all of the appended claims. Accordingly, the subject or topic of each such reference is not automatically or necessarily part of, or required by, any particular claim(s) merely because of such reference. So long as they are not mutually exclusive or contradictory any aspect or feature or combination of aspects or features of any embodiment disclosed herein may be used in any other embodiment disclosed herein. 
     DETAILED DESCRIPTION OF THE INVENTION 
       FIGS. 1A ,  1 B and  1 C show a rig  10  with rig equipment F, G, H, I, J on a drill floor  12 , the drill floor  12  is raised by a substructure  16  to which the drill floor  12  is connected. Connected to the substructure  16  is a structure lifting and movement apparatus which includes a left suspending arm  21  and a right suspending arm  22 . 
     Each suspending arm  21 ,  22  (see  FIGS. 2A ,  2 B) has support beams (see beams  21   l ,  21   m ,  FIG. 2B ) and is pivotably connected with pins (e.g. see pins  21   c ,  21   d  for the arm  21 ) to a base  21   b ,  22   b , respectively, and these bases are secured or formed integrally of the drill floor  12 . The suspending arms  21 ,  22  can pivot 180° on their bases. Each suspending arm has a linkage assembly raised and lowered by an hydraulic cylinder apparatus  23  (one arm at each end of the skid  17  of the structure  40 ). A piston  23   p  of each apparatus  23  movable in a housing  23   h  is connected to a first top link  24   t . A pin  23   z connects a lower end of the housing  23   h  to the arm  21 . A crosslink  24   c  is interconnected between the first top link  24   t  and a second top link  24   s  so that when the first top link  24   t  is moved up by extending the movable piston  23   p  of the apparatus  23 , the second top link  24   s  is also moved up. An end of each top link is pinned with a pin  25  to the suspension arm ( 21  or  22 ) so that the upper ends of the first top link  24   t  and of the second top link  24   s  are free to pivot up when raised by the movable piston   23   p.    
     Two intermediate links are connected to the top links; e.g. a top of a first intermediate link  26   t  is pivotably connected to the top link  24   t  and the top of a second intermediate link  26   s  is pivotably connected to the second top link  24   s . When the top links are raised, the intermediate links are raised with them. 
       FIGS. 1D-1L  illustrate structure for connection of various parts of a rig  10   a  like the rig  10 ; shown with a drawworks deleted (like the equipment F,  FIG. 1C ). The rig  10   a  has two arms like the arms  21 ,  22 ,  FIG. 1C ; but only one arms  21   a  is shown. 
       FIGS. 1E-1L  illustrate various connection structures both before a center floor CF is installed and after a center floor CF is installed. The views of  FIGS. 1E-1L  are along the lines of  FIG. 1D  as indicated above. 
       FIGS. 1E and 1F  illustrate the connection of beams B 1  and B 2  with pins Pa. 
       FIGS. 1G and 1H  illustrate the connection of parts P 1  and P 2 . 
       FIGS. 1I and 1L  illustrate the connection of parts P 3  and P 4 . 
       FIGS. 1K and 1L  illustrate the connection of parts P 5  and P 6 . 
     Two lower links releasably and pivotably connect each intermediate link to lugs on a skid  17  supporting a structure  40 , e.g. a doghouse (supported on a trailer). For example, as shown in  FIG. 2B , a first lower link  27   t  has a top end pivotably connected to a lower end of the first intermediate link  26   t  and a bottom end releasably connected, e.g. with an insertable/removable pin  28   t , to a lug  42   t ; and a second lower link  27   s  has a top end pivotably connected to a lower end of the second intermediate link  26   s  and a bottom end releasably connected, e.g. with an insertable/removable pin  28   s  to a lug  42   s . Similar links and supports are associated with the other suspension arm and the other end of the structure  40 , e.g. as referred to below, the doghouse  40 . 
     As shown in  FIG. 2A , the movable piston  23   p  is retracted. Hydraulic power fluid is supplied to the cylinder apparatus  23  from an hydraulic power unit HPU controlled by a control-system CS (shown schematically in  FIG. 2B ). 
     In one method according to the present invention, the truck T approaches the rig  10 , with the doghouse  40  supported on a trailer B. The left (as viewed in  FIG. 1C ) suspending arm  22  is turned 180° (from its initial position as shown in  FIG. 1C ). With the left suspending arm  22  out of the way, the truck T is driven to position the doghouse  40  as shown in  FIGS. 3A-3C . 
     As shown in  FIGS. 4A-4C , the arms  21 ,  22  are then turned 90° so they can be connected to the doghouse lugs  42   t ,  42   s . The linkage assemblies are released (they are held in a fixed position for transport) and pins  28   t  and  28   s  are used to releasably connect the lower links  27   t ,  27   s  to the lugs  42   t ,  42   s.    
     As shown in  FIGS. 5A-5D , the movable piston  23   p  is then extended resulting in the rotation of the links  24   t ,  24   s ,  26   t , and  26   s  to align the doghouse  40  parallel to the drill floor  12  and to raise the doghouse  40  off the trailer B. The skid  17  with the doghouse  40  is raised to a level flush with the drill floor  12 . 
     The skid  17  with the doghouse  40  is locked in place (see  FIG. 6D ) by inserting removable pins  29   t ,  29   s  through holes in the lugs  42   t ,  42   s  into corresponding holes in the arms  21 ,  22 . The movable pistons  23   p  of both apparatuses  23  can be retracted and the truck T with the trailer B driven away (see  FIGS. 6A-6C ). 
     As shown in  FIGS. 7A-7C , the substructure  16  raises the drill floor  12  with the skid  17  and the doghouse  40 . Since using the arms  21 ,  22  aligns the doghouse  40 , it is not necessary for the skid  17  with the doghouse  40  to be perfectly parallel to the substructure  16  prior to lifting, and there can be a gap GP (see  FIG. 3C ) between the drill floor  12  and the doghouse  40 . 
       FIGS. 8A-13C  illustrate another system and method according to the present invention for installing a rig structure such as, but not limited to, a doghouse on a rig without a crane, cables, or drawworks. Instead of the linkage assemblies of the system as shown in  FIG. 2B , a plurality of powered hydraulic cylinder assemblies are used to raise and move a skid with a doghouse. 
       FIGS. 8A ,  8 B, and  8 C show a rig  100  with a drill floor  112  on a substructure  116  with rig equipment like the rig of  FIG. 1A . Pivotably connected to the drill floor  112  are a left suspending arm  121  and a right suspending arm  122  on bases  121   b ,  122   b , respectively. The bases are connected to the drill floor  112 .  FIG. 8D  shows the left suspending arm  121 . The right suspending arm  122  is like the left suspending arm. As shown in  FIG. 8C  the two suspending arms  121 ,  122  are directed toward each other, e.g. for travel. 
     The suspending arm  121 ,  FIG. 8D , is pivotably connected to the base  121   b  which is secured to or formed integrally of the substructure  116 . The arm  121  can pivot 180° on the base  121   b . Each suspending arm  121  has two hydraulically-powered raising cylinder apparatuses  123   a  and  123   b  with housings  123   c ,  123   d  and extendable pistons  123   e ,  123   f , respectively. A top end of each housing is pivotably connected to the arm  121  and a lower end of each piston is pivotably connected to a lug  142  on a skid  117  to which is secured a doghouse  140 . Initially the doghouse  140  is supported on a trailer L of a truck R. 
       FIGS. 8E-8H  illustrate the connection of the skid  117  to the suspending arms. The apparatuses  123   a ,  123   b  raise the skid  117  (and whatever is on the skid  117 , e.g. a doghouse  140 ) so that the holes Ha of the arm are aligned with holes  128  of the lugs  142 . Locking pins PS are then inserted through the holes to secure the skid  117  to the arm. 
     An hydraulically-powered cylinder apparatus  123   k  has a housing  123   m  pivotably connected to the arm  121  and an end of an extendable piston  123   p  pivotably connected with pins  123   l  to a lug  143  on the skid  117 . Hydraulic power fluid is supplied to the three cylinder apparatuses from an hydraulic power unit HPU controlled by a control system CS (shown schematically). 
       FIGS. 9A-13C  illustrate steps in a method according to the present invention for installing the doghouse  140  on the rig  100 . 
     As shown in  FIGS. 9A-9C , the arms  121 ,  122  are turned out 180° (as compared to their position in  FIG. 8C ). The cylinders  123   k  connected to the arms  121 ,  122  (used for removing the doghouse) are pinned in place when rotating the arms. The truck R is driven so the doghouse  140  is located between the arms  121 ,  122 . 
     As shown in  FIGS. 10A-10C , the arms  121 ,  122  are turned 90° as shown and the lower ends of the pistons  123   e ,  123   f  are pivotably pinned to the lugs  142 . The lower end of the piston  123   p  is pivotably pinned to the lug  143 . 
     As shown in  FIG. 11A-11C , the pistons  123   p  are retracted, controlling movement of the skid  117  with the doghouse  140  until it is between the arms  121 ,  122  and then the raising cylinder apparatuses  123   a ,  123   b  retract their pistons  123   e ,  123   f  to raise the doghouse  140  so that the top of the skid  117  is flush with the drill floor  112 . An initial gap GA between the skid  117  with the doghouse  140  and the drill floor  112 , if present, is eliminated as the doghouse  140  moves to the drill floor  112 . 
     The skid  117  with the doghouse  140  is locked in place as shown in  FIGS. 12A-12C  by inserting pins through holes  128  in the lugs  142  into corresponding holes in the arms  121 ,  122 . For storage, power to the cylinders is turned off. Once the skid  117  with the doghouse  140  is connected to the arms  121 ,  122 , the truck R with the trailer A is driven away. 
       FIGS. 13A-13C  show the drill floor  112  with the doghouse  140  installed thereon raised by the substructure  116 . 
     The present invention, therefore, provides in some, but not in necessarily all, embodiments a method for installing a rig structure on a drilling rig, the method including: positioning a rig structure on a movement apparatus adjacent a support apparatus, the support apparatus connected to a substructure of a drilling rig, the support apparatus movably connected to the substructure, the substructure supporting a drilling floor, said positioning effected by moving the movement apparatus on ground adjacent the substructure; moving the support apparatus into a connecting orientation with respect to the rig structure, the support apparatus having raising apparatus connected thereto; connecting the raising apparatus to the rig structure; and raising the rig structure with the raising apparatus. Such a method may one or some, in any possible combination, of the following: wherein the rig structure is one of house, doghouse, cabin, driller cabin, and electrical control house; raising the rig structure up to the drill floor and securing the rig structure to the support apparatus; wherein the support apparatus includes dual opposed support arms, each arm pivotably connected to a corresponding base connected to the drilling floor, the method further including positioning each of the dual opposed support arms at an angle to its respective base to facilitate positioning of the rig structure adjacent the drilling floor; moving the dual opposed support arms toward the rig structure for connection thereto, and connecting the dual opposed support arms to the rig structure; aligning the rig structure with respect to the support apparatus, and with the raising apparatus, raising the rig structure above the movement apparatus; removing the movement apparatus away from the drilling rig; raising, with the substructure, the drilling floor with the rig structure thereon; the raising apparatus including linkage apparatus connectable between the dual opposed support arms and the rig structure, and hydraulic cylinder apparatus interconnected between the dual support arms and the linkage apparatus for raising the linkage apparatus to raise the rig structure; the linkage apparatus including two spaced-apart linkages each with multiple links, each with a lowermost link connectable to the rig structure, the two spaced-apart linkages including a first linkage and a second linkage, a common link interconnecting the two linkages, and the hydraulic cylinder apparatus having a first end and a second end, the first end connected to one of the dual opposed support arms and the second end connected to the first linkages, the method further including extending the hydraulic cylinder apparatus to raise the first linkage and, via the common link, to thereby raise the second linkage; the raising apparatus including hydraulic cylinder apparatus releasably interconnecting the dual opposed support arms and the rig structure, the method further including raising the rig structure by contacting the hydraulic cylinder apparatus; and/or the raising apparatus including hydraulic cylinder, the hydraulic cylinder apparatus interconnected between the support apparatus and the rig structure, the method further including contracting the hydraulic cylinder apparatus to move the rig structure toward the drilling floor. 
     The present invention, therefore, provides in some, but not in necessarily all, embodiments a method for installing a rig structure on a drilling rig, the method including: positioning a rig structure on a movement apparatus adjacent a support apparatus, the support apparatus connected to a substructure of a drilling rig, the support apparatus movably connected to the substructure, the substructure supporting a drilling floor, said positioning effected by moving the movement apparatus on ground adjacent the substructure; moving the support apparatus into a connecting orientation with respect to the rig structure, the support apparatus having raising apparatus connected thereto; connecting the raising apparatus to the rig structure; raising the rig structure with the raising apparatus up to the drill floor; wherein the rig structure is one of house, doghouse, cabin, driller cabin, and electrical control house; wherein the support apparatus includes dual opposed support arms, each arm pivotably connected to a corresponding base connected to the drilling floor, the method further including positioning each of the dual opposed support arms at an angle to its respective base to facilitate positioning of the rig structure adjacent the drilling floor; removing the movement apparatus away from the drilling rig; and raising, with the substructure, the drilling floor with the rig structure thereon. 
     The present invention, therefore, provides in some, but not in necessarily all, embodiments a handling system for securing a rig structure to a drilling rig, the handling system including movement apparatus for initially supporting a rig structure and for moving on ground adjacent a drilling rig to position the rig structure with respect to the drilling rig, the drilling rig having a substructure with a drill floor; support apparatus movably connected to the drill floor for selectively supporting the rig structure, the support apparatus movable out of the way to facilitate positioning of the rig structure with respect to the drill floor and the support apparatus movable adjacent the rig structure for connection thereto; and raising apparatus connected to the support apparatus, the raising apparatus for selectively raising the rig structure with respect to the drill floor. Such a system may one or some, in any possible combination, of the following: wherein the rig structure is one of house, doghouse, cabin, driller cabin, and electrical control house; wherein the support apparatus includes dual opposed support arms, each arm pivotably connected to a corresponding base connected to the drilling floor, and each of the dual opposed support arms positionable at an angle to its respective base to facilitate positioning of the rig structure adjacent the drilling floor; the raising apparatus including linkage apparatus connectable between the dual opposed support arms and the rig structure, and hydraulic cylinder apparatus interconnected between the dual support arms and the linkage apparatus for raising the linkage apparatus to raise the rig structure; the linkage apparatus including two spaced-apart linkages each with multiple links, each with a lowermost link connectable to the rig structure, the two spaced-apart linkages including a first linkage and a second linkage, a common link interconnecting the two linkages, and the hydraulic cylinder apparatus having a first end and a second end, the first end connected to one of the dual opposed support arms and the second end connected to the first linkage so that extending the hydraulic cylinder apparatus raises the first linkage and, via the common link, thereby raises the second linkage; the raising apparatus including hydraulic cylinder apparatus releasably interconnecting the dual opposed support arms and the rig structure so that by contracting the hydraulic cylinder apparatus raises the rig structure; and/or the raising apparatus including hydraulic cylinder apparatus, the hydraulic cylinder apparatus interconnected between the support apparatus and the rig structure so that contracting the hydraulic cylinder apparatus moves the rig structure toward the drilling floor. 
     The systems and methods of the inventions described in the following pending U.S. patent applications, co-owned with the present invention, filed on even date herewith, naming Donnally et al as inventors, and fully incorporated herein for all purposes, may be used with certain embodiments of the present invention, the applications entitled: “Drilling Rig Masts And Methods Of Assembly and Erection”; “Drilling Rig Drawworks Installation”; and “Drilling Rigs and Erection Methods”. 
     In conclusion, therefore, it is seen that the present invention and the embodiments disclosed herein and those covered by the appended claims are well adapted to carry out the objectives and obtain the ends set forth. Certain changes can be made in the subject matter without departing from the spirit and the scope of this invention. It is realized that changes are possible within the scope of this invention and it is further intended that each element or step recited in any of the following claims is to be understood as referring to the step literally and/or to all equivalent elements or steps. The following claims are intended to cover the invention as broadly as legally possible in whatever form it may be utilized. The invention claimed herein is new and novel in accordance with 35 U.S.C. § 102 and satisfies the conditions for patentability in § 102. The invention claimed herein is not obvious in accordance with 35 U.S.C. § 103 and satisfies the conditions for patentability in § 103. This specification and the claims that follow are in accordance with all of the requirements of 35 U.S.C. § 112. The inventors may rely on the Doctrine of Equivalents to determine and assess the scope of their invention and of the claims that follow as they may pertain to apparatus not materially departing from, but outside of, the literal scope of the invention as set forth in the following claims. All patents and applications identified herein are incorporated fully herein for all purposes. It is the express intention of the applicant not to invoke 35 U.S.C. § 112, paragraph 6 for any limitations of any of the claims herein, except for those in which the claim expressly uses the words ‘means for’ together with an associated function. In this patent document, the word “comprising” is used in its non-limiting sense to mean that items following the word are including, but items not specifically mentioned are not excluded. A reference to an element by the indefinite article “a” does not exclude the possibility that more than one of the element is present, unless the context clearly requires that there be one and only one of the elements.