System for lowering a subsea device from a vessel
    1.
    发明授权
    System for lowering a subsea device from a vessel 失效
    从船只中降低设备的系统

    公开(公告)号:US3641961A

    公开(公告)日:1972-02-15

    申请号:US3641961D

    申请日:1970-05-25

    发明人: HOWARD GEORGE C

    IPC分类号: B63B27/16 B63B27/36 B63B35/00

    CPC分类号: B63B27/36

    摘要: A system for lowering a subsea device from a vessel floating on a body of water. Means are provided to prevent the subsea device from striking the vessel as it goes through the sea-air interface. In a preferred embodiment, an access well means such as a tube extends downwardly through the vessel to below the wave action of the body of water. The outer wall of the subsea device is provided with roller members urged against the inner wall of the access well. Other means of moving a subsea device through the sea-air interface are also disclosed.

    摘要翻译: 一种用于从漂浮在水体上的船舶降低海底装置的系统。 提供装置以防止海底装置在穿过海空界面时撞击船只。 在一个优选实施例中,诸如管子的进入井装置向下延伸穿过船只以低于水体的波浪作用。 海底装置的外壁设置有抵靠进入井的内壁的辊构件。 还公开了通过海空界面移动海底装置的其它方式。

    Well drilling method using decanol in place of oil in aqueous drilling fluids
    3.
    发明授权
    Well drilling method using decanol in place of oil in aqueous drilling fluids 失效
    在水性钻井液中使用癸烷在油中的井钻井方法

    公开(公告)号:US3594317A

    公开(公告)日:1971-07-20

    申请号:US3594317D

    申请日:1969-11-12

    IPC分类号: C09K8/22

    CPC分类号: C09K8/22

    摘要: NORMAL, PRIMARY DECANOL IS USED IN WATER-BASED, CLAYCONTAINING DRILLING FLUIDS AS A REPLACEMENT FOR OIL TO DECREASE FRICTION OF THE DRILL STRING AND FLOWING DRILLING FLUID AND TO REDUCE THE TENDENCY OF THE DRILL PIPE TO STICK TO THE WELL WALL DUE TO HIGHER PRESSURES IN THE WELL THAN IN THE FORMATION. PREFERABLY, THE ALCOHOL IS PURE, SYNTHETIC DECANOL. IT CAN BE USED AS BLENDS WITH OTHER LIQUIDS SUCH AS OTHER ALCOHOLS.

    High turn-down ratio design for sulfur plants
    4.
    发明授权
    High turn-down ratio design for sulfur plants 失效
    用于硫磺植物的高转速比设计

    公开(公告)号:US3592602A

    公开(公告)日:1971-07-13

    申请号:US3592602D

    申请日:1969-02-10

    发明人: PALM JOHN W

    IPC分类号: B01D53/50 B01D53/52 C01B17/04

    CPC分类号: C01B17/0413

    摘要: TO AVOID ABNORMALLY LOW TEMPERATURES AND FLOW RATES IN A SULFUR PLANT WHERE HIGH TURN-DOWN RATIOS ARE ENCOUNTERED IN THE RECOVERY OF FREE SULFUR FROM HYDROGEN SULFIDECONTAINING GASES, THE ACID GAS STREAM IS BURNED IN A SEPARATE FIRING TUNNEL WITH ENOUGH AIR TO CONVERT ONETHIRD OF THE HYDROGEN SULFIDE INTO SULFUR DIOXIDE. TO SUPPLEMENT THE HEAT REQUIREMENTS AND NECESSARY GAS VOLUMES, A HYDROCARBON FUEL IN AMOUNTS UP TO ABOUT 20 PERCENT OF THE DESIGN ACID GAS FEED RATE IS BURNED IN A SECOND FIRING TUNNEL. THE PRODUCTS OF COMBUSTION FROM THESE SEPARATE BURNING STEPS ARE COMBINED AND DISCHARGED INTO A BOILER WHERE A PORTION OF THE SULFUR PRODUCED IN THE OVERALL PROCESS IS REMOVED AFTER WHICH THE RESULTING SULFUR DENUDED STREAM IS PROCESSED IN CONVENTIONAL FASHION.

    Method of attaching a carbide ring to a steel tube
    5.
    发明授权
    Method of attaching a carbide ring to a steel tube 失效
    将碳化硅环连接到钢管的方法

    公开(公告)号:US3585710A

    公开(公告)日:1971-06-22

    申请号:US3585710D

    申请日:1968-12-30

    IPC分类号: B23K1/20 B23K31/02

    摘要: THIS IS A METHOD OF ATTACHING A CARBIDE RING TO THE OUTSIDE OF A STEEL TUBE SUCH AS A VALVE STEM. IT OVERCOMES THE PROBLEM CAUSED BY THE DIFFERENCE IN THERMAL COEFFICIENT OF EXPANSION BETWEEN CARBIDE AND STEEL. IN THE PREFERRED EMBODIMENT OF THE METHOD EMPLOYED, MOLTEN BRAZING COMPOUND AT A HIGH TEMPERATURE, E.G., 1,700*F., IS MELTED IN THE CLEARANCE SPACE BETWEEN THE CARBIDE RING AND THE STEEL TUBE. THE CARBIDE RING IS ALLOWED TO COOL TO ABOUT 1,000*F. WHILE THE STEEL TUBE IS KEPT HOT TO ABOUT 1,500* F. BY APPLYING HEAT TO THE INSIDE. A STEEL PLUG IS THEN PLACED INSIDE THE STEEL TUBE ADJACENT THE CARBIDE RING. THIS STEEL PLUG HAS BEEN SIZED TO HAVE A DIAMETER, AT ROOM TEMPERATURE, EQUAL TO THAT OF THE INSIDE OF THE STEEL TUBE IN ITS EXPANDED POSITION AT 1,000*F. AFTER THE PLUG IS INSERTED, HEAT IS NO LONGER APPLIED AND THE CARBIDE RING CONTINUES TO SHRINK AND TO DISPLACE THE EXCESS SEMI-MOLTEN BRAZING COMPOUND. THE STEEL TUBE ALSO STARTS CONTRACTING UNTIL IT CONTACTS THE PLUG. THE PLUG WHICH WAS PUT INTO THE TUBE AT ROOM TEMPERATURE, E.G., 80*F., HAS HEAT TRANSFERRED TO IT FROM THE STEEL TUBE AND THE PLUG ITSELF STARTS TO INCREASE IN SIZE. THE STEEL TUBE WHEN IT CONTACTS THE PLUG WILL BE AT LEAST AT 1,000*F. AND IS SOFT ENOUGH TO YIELD EASILY. AS THE TEMPERATURE OF THE STEEL PLUG INCREASES, IT CONTINUES TO EXPAND AND CAUSES ADDITIONAL YIELDING OF THE STEEL TUBE WHICH YIELDS SUFFICIENTLY SO THAT WHEN IT AND THE CARBIDE RING COOL, THEY DO NOT SEPARATE.

    Laying pipeline in deep water
    6.
    发明授权
    Laying pipeline in deep water 失效
    深埋管道

    公开(公告)号:US3581506A

    公开(公告)日:1971-06-01

    申请号:US3581506D

    申请日:1968-12-31

    发明人: HOWARD GEORGE C

    IPC分类号: F16L1/19 F16L1/00

    CPC分类号: F16L1/19

    摘要: This relates to a system of laying pipeline in deep water from a barge floating thereon. The barge has a vertical passage therethrough. A bearing means supports an elongated frame or rack above said passage and provides for pivotal movement in any direction. The elongated frame supports movable pipe gripping means, and pipe joint making means are supported on an endless belt for continuous operation. The proper restraint applied to the pipe, as the barge moves through the water, automatically provides proper catenary for the pipeline that is being laid. This pivotal system of supporting the elongated frame compensates for roll of the ship as well as pitch of the ship without having additional stress applied to the pipe, which would be the case if the pipe supporting means did not have the pivotal arrangement of this invention.

    Mooring system using cables and buckled riser pipe
    7.
    发明授权
    Mooring system using cables and buckled riser pipe 失效
    使用电缆和升降管的运动系统

    公开(公告)号:US3572272A

    公开(公告)日:1971-03-23

    申请号:US3572272D

    申请日:1969-03-05

    摘要: THIS INVENTION RELATES TO A MOORING SYSTEM FOR A FLOATING STRUCTURE. SPECIAL BOUYANCY CHAMBERS SUPPORT THE STRUCTURE, INCLUDING A WORK DECK, ABOVE A BODY OF WATER. THE STRUCTURE IS CONNECTED TO ANCHORS AT THE FLOOR OF THE BODY OF WATER BY ELONGATED MEMBERS SUCH AS CABLES AND PIPES HAVING DIFFERENT ELONGATIONS PER UNIT OF STRESS. THE MAIN ANCHORING LOAD IS CARRIED BY THE CABLES AND THE PIPES ARE USED PRIMARILY IN DRILLING OPERATIONS OR FOR TRANSPORTING PETROLEUM FROM AN UNDERWATER WELL. BECAUSE OF WAVE ACTION, THE FLOATING PLATFORM IS SUBJECT TO VERTICAL HEAVE FORCES. THE MAXIMUM VERTICAL STRESS APPLIED TO THE CABLES CAUSES THEM TO ELONGATE A LENGTH $L. THE RISER PIPE IS INSTALLED UNDER SUFFICIENT COMPRESSION SO THAT IT IS IN A BUCKLED CONFIGURATION WHEN THE FLOATING STRUCTURE IS IN A NEUTRAL POSITION. THE LENGTH OF THE BUCKLED RISER PIPE EXCEEDS THE VERTICAL DISTANCE FROM THE BOUYANCY MEANS TO THE WELL HEAD BY AN AMOUNT EQUAL TO THE MAXIMUM $ OF THE CABLE. AS THE VERTICAL DISTANCE INCREASES BY $L. THE BUCKLED RISER WILL STRAIGHTEN, RATHER THAN ELONGATE, WITHOUT A CHANGE IN AXIAL FORCE. THUS THE BASIC LOAD-CARRYING MEMBER REMAINS THE CABLE. IN A PREFERRED EMBODIMENT THE CABLE IS SLIDEABLY CONNECTED TO THE POINTS ALONG THE BUCKLED RISER PIPE CORRESPONDING TO THE NODES OF THE BUCKLED CONFIGURATION.

    Multiple frequency surveying system
    9.
    发明授权
    Multiple frequency surveying system 失效
    多个频率调查系统

    公开(公告)号:US3568142A

    公开(公告)日:1971-03-02

    申请号:US3568142D

    申请日:1967-01-16

    IPC分类号: G01V1/28

    CPC分类号: G01V1/28 G01V2210/20

    摘要: A seismic surveying method utilizes a vibratory source emitting a succession of differing frequency sine waves. Received waves after suitable amplification are passed through a group of narrow filters which separate the various frequency components. After suitable time delays, these components are recombined to present a record similar to that obtained from an explosive single source.

    System for converting well logs from analogue-to-digital information
    10.
    发明授权
    System for converting well logs from analogue-to-digital information 失效
    从数字到数字信息转换好日志的系统

    公开(公告)号:US3567949A

    公开(公告)日:1971-03-02

    申请号:US3567949D

    申请日:1969-05-12

    CPC分类号: G01V1/32 H03M1/00 H03M1/22

    摘要: Conventional well logs in the past have been recorded to a large extent in analogue form as a visual trace on a strip of paper. With the advent of the digital computer, it is now desired to convert these logs into digital form so that they can be processed in such modern computers. Such well logs are transferred to long strips of precision ruled, perforated paper. A drum with windows placed around its periphery is provided. Means are provided to drive these logs by these windows in a direction parallel to the axis of the drum. At the same time, scanning means are provided to scan by each window. These scanning means include means for measuring the distance between a base line and the log itself. This measurement is converted to a digital representation of the log at that point. Sufficient scanning is done to obtain digital information defining each well log.