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    ASSEMBLY AND PROCESS FOR DRILLING AND COMPLETING MULTIPLE WELLS
    2.
    发明授权
    ASSEMBLY AND PROCESS FOR DRILLING AND COMPLETING MULTIPLE WELLS 失效
    DEVICE AND METHOD FOR钻探的钻杆和装备各种

    公开(公告)号：EP0674744B1

    公开(公告)日：1996-11-13

    申请号：EP94928156.2

    申请日：1994-09-16

    申请人： MARATHON OIL COMPANY

    发明人： COLLINS, Gary, J. ,  BAUDOIN, Ervin

    IPC分类号： E21B43/30 ,  E21B33/047

    CPC分类号： E21B7/043 ,  E21B7/061 ,  E21B7/068 ,  E21B23/006 ,  E21B33/03 ,  E21B33/047 ,  E21B41/08 ,  E21B43/017 ,  E21B43/14 ,  E21B43/305

    摘要： A process for drilling and completing multiple subterranean wells from a common well bore (9) and an assembly for guiding a drill string during drilling and casing during completion of such multiple wells. The assembly comprises a wellhead (6) located at or near the surface of the earth and positioned over the common well bore (9), at least two tubulars (30, 34) positioned within the common well bore, and means positioned at said wellhead (6) for segregating and supporting the tubulars. In accordance with the process, at least one subterranean well bore is drilled through one of the tubulars (30, 34) and into a subterranean formation and hydrocarbons can be produced from the subterranean formation to the surface via production casing and/or production tubing positioned within the subterranean well bore (9). Other subterranean well bores can be drilled in a similar manner through other tubulars of the assembly.

    APPARATUS AND PROCESS FOR DRILLING AND COMPLETING MULTIPLE WELLS
    3.
    发明授权
    APPARATUS AND PROCESS FOR DRILLING AND COMPLETING MULTIPLE WELLS 失效
    DEVICE AND METHOD FOR钻多个孔kompletieren

    公开(公告)号：EP0840834B1

    公开(公告)日：2005-03-23

    申请号：EP96917909.2

    申请日：1996-06-03

    申请人： MARATHON OIL COMPANY

    发明人： COLLINS, Gary, J.

    IPC分类号： E21B7/08 ,  E21B7/12 ,  E21B17/00

    CPC分类号： E21B23/006 ,  E21B7/043 ,  E21B7/061 ,  E21B7/068 ,  E21B23/002 ,  E21B33/03 ,  E21B33/047 ,  E21B43/017 ,  E21B43/14 ,  E21B43/305

    摘要： A subterranean well system and a process for drilling and completing such a system from a first subterranean well bore (54) which extends to the surface of the earth. A second well bore (55) may be drilled from the first well bore (54) and a first tubular (120) of a multiple well drilling template (100) can be positioned within the first well bore while a second tubular (130) of the template (100) can be positioned within both the first and second well bores (54, 55). Additionally, a third well bore can be drilled from the first well bore (54) and the first tubular can be further positioned therein. The first and second well bores (54, 55) can penetrate subterranean formation(s) or additional well bore(s) can be drilled from the first, second and/or third well bores (54, 55) so as to penetrate subterranean formations. A second multiple well drilling template may be utilized to drill such additional well bore(s) from the second or third well bores (55). Fluid is produced from subterranean formation(s) to the surface via said first, second, third (54, 55) and/or additional well bores (60, 70) and/or through production casing and/or tubing positioned therein.

    TEMPLATE AND SYSTEM OF TEMPLATES FOR DRILLING AND COMPLETING OFFSITE WELL BORES
    4.
    发明公开
    TEMPLATE AND SYSTEM OF TEMPLATES FOR DRILLING AND COMPLETING OFFSITE WELL BORES 审中-公开
    MASK和面罩系统用于钻探和完成HOLES

    公开(公告)号：EP1264066A1

    公开(公告)日：2002-12-11

    申请号：EP01920408.0

    申请日：2001-03-15

    申请人： Marathon Oil Company

    发明人： COLLINS, Gary, J. ,  BAUGH, John, Lindley ,  MURRAY, Doug, J. ,  MILLS, Aubrey, Clifton

    IPC分类号： E21B7/06 ,  E21B34/14 ,  E21B43/12

    CPC分类号： E21B33/146 ,  E21B41/0035

    摘要： One or more templates (20a-20c) are provided for circulating fluids in a main wellbore (92) and for drilling and completing at least one offset wellbore (160, 164) from the main wellbore. Each template has a body (21), an inlet leg (22), a main outlet leg (23), and an offset outlet leg (24). A straddle assembly (60) is mounted in the template to configure the template for fluid circulation. The straddle assembly, in cooperation with the inlet and main outlet legs, effects a downhole flow path which directs fluids from the inlet leg through body of the template and out the main outlet leg, bypassing the offset outlet leg. The straddle assembly is distally displaced from the template to reconfigure the template for drilling. A diverter (140) is placed in the body of the template upon displacement of the straddle assembly to define a drill string path from the inlet leg to the offset outlet leg.

    ASSEMBLY AND PROCESS FOR DRILLING AND COMPLETING MULTIPLE WELLS
    9.
    发明公开
    ASSEMBLY AND PROCESS FOR DRILLING AND COMPLETING MULTIPLE WELLS 失效
    DEVICE AND METHOD FOR钻探的钻杆，并装备了多种。

    公开(公告)号：EP0674744A1

    公开(公告)日：1995-10-04

    申请号：EP94928156.0

    申请日：1994-09-16

    申请人： MARATHON OIL COMPANY

    发明人： COLLINS, Gary, J. ,  BAUDOIN, Ervin

    IPC分类号： E21B7 ,  E21B23 ,  E21B33 ,  E21B43

    CPC分类号： E21B7/043 ,  E21B7/061 ,  E21B7/068 ,  E21B23/006 ,  E21B33/03 ,  E21B33/047 ,  E21B41/08 ,  E21B43/017 ,  E21B43/14 ,  E21B43/305

    摘要： A process for drilling and completing multiple subterranean wells from a common well bore (9) and an assembly for guiding a drill string during drilling and casing during completion of such multiple wells. The assembly comprises a wellhead (6) located at or near the surface of the earth and positioned over the common well bore (9), at least two tubulars (30, 34) positioned within the common well bore, and means positioned at said wellhead (6) for segregating and supporting the tubulars. In accordance with the process, at least one subterranean well bore is drilled through one of the tubulars (30, 34) and into a subterranean formation and hydrocarbons can be produced from the subterranean formation to the surface via production casing and/or production tubing positioned within the subterranean well bore (9). Other subterranean well bores can be drilled in a similar manner through other tubulars of the assembly.