公开(公告)号：WO1995017580A1

公开(公告)日：1995-06-29

申请号：PCT/US1994010531

申请日：1994-09-16

Applicant: MARATHON OIL COMPANY

Inventor： MARATHON OIL COMPANY ,  COLLINS, Gary, J. ,  BAUDOIN, Ervin

IPC: E21B43/30

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

Abstract: 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.

Abstract translation: 一种用于从共同的井眼（9）钻探和完成多个地下井的过程，以及用于在钻井和套管期间在这样的多个井的完成期间引导钻柱的组件。 该组件包括位于地球表面附近或位于公共井眼（9）上的井口（6），定位在公用井孔内的至少两个管（30,34）和位于所述井口 （6）用于隔离和支撑管状体。 根据该方法，至少一个地下井孔穿过其中一个管状物（30,34）并进入地下地层，并且烃可以通过生产套管和/或定位的生产管道从地下地层产生到地表 在地下井眼（9）内。 可以通过组件的其它管道以类似的方式钻出其它地下井孔。

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

Applicant: MARATHON OIL COMPANY

Inventor： COLLINS, Gary, J. ,  BAUDOIN, Ervin

IPC: E21B7 ,  E21B23 ,  E21B33 ,  E21B43

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

Abstract: 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.

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

Applicant: MARATHON OIL COMPANY

Inventor： COLLINS, Gary, J. ,  BAUDOIN, Ervin

IPC: E21B43/30 ,  E21B33/047

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

Abstract: 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.