Патент USA US3058324код для вставки
Oct' 15, 1962 _3,058,311 ` H. J. wooLsLAYER ETAL FLOATING OIL WELL DRILLING EQUIPMENT Filed April 8, 1958 New 2' Sheets-Sheet 1 f. FCS 3.05am Patented Oct. 16, 1962 2 3,653,311 FLÜATENG @EL WELL DRILLENS EQUXPMENT Homer J. Wooisiayer, Qecii Jenkins, and Charles D. Iddings, Tulsa, Okla., and George l. Lynch, New York, NSY., assignors to Lee SC. Moore Corporation, Pitts hurgh, Pa., a corporation of Pennsyivania Fiied Apr. S, 19%, Ser. No. 727,212 4 Ciairns. (til. (i1-ließ) This invention relates to the drilling of offshore oil wells, and more particularly to the transportation of oil well drilling equipment by barge to a stationary marine platform. In one type of offshore cil well drilling, a platform is constructed in ñxed position above the water and then the drilling rig is iioated out to it on one or more tenders or barges, from which the rig must be transferred to the plat form. The substructure or base usually is moved onto the platform first and fastened securely in position. Then a reclining drilling mast is ñoated up to the base, attached to it and swung up to upright position. That is often a diñicult operation because the mast may not be at the best level or late-ral position for connection to the base, and also because the barge may pitch and roll while the con nection is being attempted. This not only makes the job diñìcult, but some of the equipment is likely to be dam aged in the process. It is among the objects of this invention to provide float ing oil well drilling equipment which permits transfer of a drilling mast to a marine. platform without much diíi‘i culty, which permits the height of the reclining mast above the barge carrying it to be adjusted as desired, which per mits the barge to roll and pitch without damaging the mast, and which facilitates connection of the mast to the base. The invention is illustrated in the accompanying draw ings; in which considerable distance in front of the other frames. The frames in each pair are spaced far enough apart to receive between them a reclining drilling mast 11 that has its foot end projecting a considerable distance beyond the end of the barge toward the base 1. Also disposed between the frames are cross »beams 12, as shown in FIG. 2, o-n which the mast'rests. Each beam is suspended by ñexible means between the adjacent frames. Although the flexible means may be in the form of pivoted links connecting the op posite ends of the beam with the tops of the frames, it is preferred to use a pair of cables 13. The cables are at tached to the opposite ends of the beams and extend up over sheaves 14 in the upper ends of the two frames and then down to winches 15 mounted on the barge at the base of the frames. While the barge is being towed to a well drilling site, the cross beams 12 are held rigidly in place by suitable braces (not shown) removably connected to them. When the barge reaches the place where it is to be unloaded, the braces are removed so that the cross beams can hang freely between the frames as shown. The elevation at which the mast will be carried out to the platform will depend upon how rough the water may be and on how much equip ment it is desired to carry on the barge beneath the re clining mast. Usually the platform will extend farther above the water than the barge does, so the mast may have to be raised by reeling in cables 13 on the Winches 15 to elevate the mast-supporting beams. The mast can be raised high enough in this way to permit it to- project over 30 the front end of the base when the barge is moved in close to the. platform and anchored. The foot of the mast is then pivotally connected to the base so that the mast can be swung up to upright drilling position. While the mast is being connected to- the base, the barge may roll, but that will not interfere materially with the operation because the ñexible connections between FIG. 1 is a side View of our equipment showing an oil the mast and barge frames 9 and 10 allow the barge to roll well drilling mast about to be transferred from a bargel to without unduly disturbing the mast. After the mast has a marine platform; been connected to the base, the drilling line 17 from the 40 FIG. 2 is an enlarged vertical section taken on the line crown block 18 is passed over the top of the gin pole and II-II of FIG. 1 ; down to the drawworks, where it is secured to the drum. FIG. 3 is a further enlarged fragmentary side view of A sling 19, connected to the hook of the traveling block the equipment, with the mast in Working position; 201, is carried back through the gin pole and then Aup and 45 over sheaves 221 in its top and forward again to the mast, of FIG. 3; where it is secured. The drawworks then can raise the FIG. 5 is a view similar to FIG. l of a modification; mast by reeling in the drilling line to cause the traveling FIG. 4 is a horizontal section taken on the line IV-IV FIG. 6 is an enlarged, fragmentary horizontal section block to pull on the sling in a well known manner. When taken on the line VI-VI of FIG. 5; the mast is erect, it is fastened to the gin pole and the sling FIG. 7 is a fragmentary vertical section taken on the is removed. y ' 50 line VII-_VII of FIG. 6; and To help in securing the foot of the reclining mast to the FIG. 8 is a fragmentary vertical section through the base, the latter is provided with a pair of arms 20 _in front central part of the mast base in FIG. l, looking forward toward the mast and showing both mast~receiving shoes. Referring to FIG. 1 of the drawings, a marine platform of the front shoes. Each arm has in its lower _end por: tion a longitudinal slot 21 that most suitably is _formed by making the lower half of the arm Vfrom a round bar bent is erected in any suitable manner over a body of water, the into U shape. The slotted portion of the arm extends platform may consist _of a base 1 for an oil well drilling down into a rearwardly tapered slot 22 in the base, where mast mounted on piles 2. This base may be constructed it is held by a pivot pin 23` extending through both slots, in place on the piles, or it may be built on land and then Consequently, the arm can be swung forward and back ñoated out and either skidded onto the piles or lifted onto ward, it can slide up and down on the pivot pin and it can 60 them by means of a crane. The base has pairs of laterally swing laterally to some extent because the front portion of spaced front and back shoes. Mounted in the back shoes the base slot is somewhat wider than the arm, These 3 and in the back part of the front shoes 4 are the lower ends of the back and front legs of an upwardly tapered gin pole S. Also mounted on the base is the usual draw works 6. Securely anchored a short distance in front of the plat form is a tender or barge 8, which extends forward away from the platform. A pair of laterally spaced upright movements `of the arms permit them to be moved about and into positions where they can be connected to the two feet of the mast, which may not be perfectly aligned with the front shoe or which may be moving about because of the movements of the floating barge. To connect the arms to the mast, their upper ends are provided with transverse openings and the mast has bifur frames 9 are rigidly mounted on the end of the barge near~ 70 cated feet also provided with transverse openings. The est the platform, while another pair of similar frames 1t) upper ends of the arms are swung into the feet, and hollow are mounted on the barge at its opposite end, or at least a pins 25 are then inserted into the registering openings to 3,058,311 3 4 pivotally connect the mast and arms together, as shown in dotted lines in FIG. 3. Then, as the mast is pulled toward the gin pole by means of the drawworks, the arms are swung backward by the mast and their upper ends are forced by the tapered base slots 22 to move back into the bifurcated front shoes and to carry the feet of the mast with them. As soon as the hollow pins line up with the front holes in the shoes, solid pivot pins 26 are inserted in the shoes and the hollow pins to pivotally anchor the mast to the shoes. It can then be swung into upright position, near its front end, a gin pole mounted on the base behind the shoes, an upwardly extending arm disposed in front of each shoe and having a transverse opening through its up as indicated in full lines in FIG. 3, by reeling the drilling line onto the drawworks. In the modiiìcation shown in FIGS. 5, 6 and 7, no pro vision is made for raising and lowering the reclining mast 30 on the barge 31, but it is supported high enough above the barge for any marine platform to which it is expected to connect. The mast is supported by frames 32 and 33 mounted on the opposite ends of the barge. The upper ends of the trames have cross rollers 34 journaled on them beneath the lower legs of the reclining mast. These per mit the mast to be moved easily back and forth on its sup ports. To permit lateral movement of the reclining mast on the barge in order to facilitate connecting the mast to a stationary platform, rollers 3-5' are secured lengthwise of the lower legs of the mast. These longitudinal rollers 25 per end, the lower portion of each arm being provided with a longitudinally extending transverse slot, said base being provided with slots extending lengthwise of the base and loosely receiving the lower ends of the arms, a pivot member extending across each base slot and through the longitudinal slot in the arm in that baseY slot to permit the arm to move lengthwise, each'base slot being long and Wide enough to permit the arm to swing backward and lat erally, a barge ñoating in front of the base and extending lengthwise away from it, a reclining mast supported length wise on the barge and having feet projecting therefrom toward said arms, the feet having transverse openings therethrough, and hollow pins extending through the open ings in said feet and upper ends of said arms to pivotally connect them together, the arms being of a length that will guide the feet yback to the shoes when the mast is moved toward the base to align said hollow pins with the shoe openings, whereby pivot pins can be inserted in said aligned shoe openings and hollow pins to pivot the mast to the shoes so that it can be swung upward. are located a short distance below the mast and rest on 3. Marine oil well drilling equipment according to claim 2, in which said base slots are tapered toward the shoes to align the upper ends of said arms with the shoes the cross rollers, whereby the mast can move on rollers ei as the arms are moving toward them. 4. Marine oil Well drilling equipment, comprising a sta tionary base supported above the surface of a body of as described in the first embodiment ofthe invention. The 30 water, a pair of laterally spaced shoes provided with aligned openings therethrough and mounted on the base mast is also swung up from the barge in the same way. near its front end, a gin pole mounted on the base behind According to the provisions of the patent statutes, we the shoes, an upwardly extending arm disposed in front of have explained the principle of our invention and have il each shoe and having a transverse opening through its lustrated and described what We now consider to repre sent its best embodiment. However, we desire to have it 35 upper end, means loosely pivoting the lower ends of the arms to the base on an axis substantially parallel to the understood that, within the scope of the appended claims, axis of said shoe openings to permit the arms to swing the invention may be practiced otherwise than as specifical back-ward and laterally, the arms being movable length ly illustrated and described. ther lengthwise or crosswise of the barge. The foot of the mast may be connected to a platform in the same manner wise thereof on said pivoting means, a barge floating in We claim: 1. Marine oil well drilling equipment, comprising a sta 40 front of the base and extending lengthwise away from it, a reclining mast supported lengthwise on the barge and tionary base supported above the surface of a. body of having feet projecting therefrom toward said arms, the water, a pair of laterally spaced shoes provided with mast feet having aligned transverse openings therethrough aligned openings therethrough and mounted on the base near its front end, a gin pole mounted on the base behind 45 adjacent the upper ends of the arms, and removable pivot pins in said arm openings connecting the arms to the mast, the shoes, an upwardly extending arm disposed in front the arms being located in positions to guide the feet back of each shoe and having a transverse opening through its to the shoes when the mast is moved toward the base to upper end, means loosely pivoting the lower ends of the arms to the base on an axis substantially parallel to the align said feet openings with the shoe openings, whereby pins can be inserted in said aligned feet and shoe openings axis of said shoe openings to permit the arms to swing to pivotally connect the mast to the shoes so that it can backward and laterally, the arms being movable length be swung upward. wise thereof on said pivoting means, a barge iìoating in front of the base and extending lengthwise away from it, References Cited in the lile of this patent a reclining mast supported lengthwise on the barge and having feet projecting therefrom toward said arms, the feet 55 UNITED STATES PATENTS having aligned transverse openings therethrough, and hol low pins extending through the openings in said feet and 1,123,851 Cooper ________________ __ Ian. 5, 1915 1,335,497 1,758,606 1,863,953 2,052,301 Hamilton ____________ __ Mar. 30, Jacobs ______________ __ May 13, Wilband ____________ __ lune 21, Johansen _____________ __ Aug. 25, 2,325,993V 1920 1930 1932 1936 Zoll __________________ __ Aug. 3, 1943 2,372,390 Petersen ____________ __ Mar. 27, 1945 2. Marine oil Well drilling equipment, comprising a sta tionary base supported above the surface of a body of water, a pair of laterally spaced shoes provided with 2,475,933 2,531,770 Woolslayer ___________ __ July 12, 1949 Ducharme ______ ______ Nov. 28, 1950 2,539,695 2,602,636 Moon ______________ __ Ian. 30, 1951 Travers _______________ __ July 8, 1952 2,934,905 Woolslayer ____________ __ May 3, 1960 aligned openings therethrough and mounted on the base 2,959,015 Beck „___ ___________ __ Nov. 8, 1960 upper ends of said arms and pivotally connecting them to gether, the arms being located in positions to guide the feet back to the shoes when the mast is moved toward the 60 base to align said hollow pins with the shoe openings, whereby pivot pins can be inserted in said aligned shoe openings and hollow pins to pivot the mast to the shoes so that it can lbe swung upward.