公开(公告)号：US3604506A

公开(公告)日：1971-09-14

申请号：US3604506D

申请日：1969-06-30

Applicant: TEXACO INC

Inventor： HOYT DONALD L

IPC: E21B43/16 ,  E21B43/30 ,  E21B43/22

CPC classification number: E21B43/16 ,  E21B43/30

Abstract: The advance of the interface between driving and driven fluids in a secondary recovery operation toward a production well is delayed by the imposition of a gradient barrier of produced hydrocarbon fluids injected into the formation via a control well in line between an injection well and a production well, the recirculation of the formation hydrocarbon fluids providing a dynamic barrier, and by retarding cusp formation via wells controlling the advance of flow gradients to spread the interface.

公开(公告)号：US3592265A

公开(公告)日：1971-07-13

申请号：US3592265D

申请日：1968-12-24

Applicant: TEXACO INC

Inventor： HOYT DONALD L

IPC: E21B43/16 ,  E21B43/30 ,  E21B43/20 ,  E21B43/22

CPC classification number: E21B43/16 ,  E21B43/30

Abstract: The interface between driving and driven fluids in a secondary recovery operation is reshaped after a cusp has developed by injection of fluids via control wells to delay the arrival of the injected driving fluid into the vicinity of a production well.

公开(公告)号：US3380525A

公开(公告)日：1968-04-30

申请号：US56111066

申请日：1966-06-28

Applicant: TEXACO INC

Inventor： ALTAMIRA ANTHONY F ,  HOYT DONALD L

IPC: E21B43/30

CPC classification number: E21B43/30

公开(公告)号：US3877521A

公开(公告)日：1975-04-15

申请号：US45891874

申请日：1974-04-08

Applicant: TEXACO INC

Inventor： ALTAMIRA ANTHONY F ,  HOYT DONALD L

IPC: E21B43/18 ,  E21B43/30 ,  E21B43/16

CPC classification number: E21B43/18 ,  E21B43/30

Abstract: At the conclusion of a secondary recovery operation in a direct line drive, after breakthrough of the driving fluid at the production wells in alternate series of a pair of production wells and an intermediate injection well having a different rate of injection of driving fluid, production is continued via the wells in the remainder of alternate series until breakthrough, and thereupon, for tertiary recovery, by the imposition of a new set of flow gradients, the original injection wells are shut in, the production wells with the initial breakthrough are converted into injection wells and production is continued via the remainder of the production wells.

Abstract translation: 在直接驱动的二次恢复操作结束时，在一对生产井的替代系列中的生产井的驱动流体突破和具有不同驱动流体注入速率的中间注入井之后，生产是 继续通过替代系列剩余部分的井直到突破，然后进行三次回收，通过施加新的流动梯度，关闭原始注入井，将初始突破的生产井转化为注入 通过剩余的生产井继续进行井和生产。

公开(公告)号：US3872922A

公开(公告)日：1975-03-25

申请号：US45891974

申请日：1974-04-08

Applicant: TEXACO INC

Inventor： ALTAMIRA ANTHONY F ,  HOYT DONALD L

IPC: E21B43/18 ,  E21B43/30 ,  E21B43/16

CPC classification number: E21B43/18 ,  E21B43/30

Abstract: Upon termination of predetermined periods during a secondary recovery operation in a direct line drive, the intermediate injection wells in each series are shut in and the production wells in alternate series are converted to injection wells, for tertiary recovery via the remainder of the production wells by the imposition of a new set of flow gradients, one predetermined period occurring at breakthrough of the driving fluid at the production wells and another upon injection of a predetermined breakthrough volume, production being continued past breakthrough.

Abstract translation: 在直接驱动的次级恢复操作期间终止预定时间段后，关闭每个系列中的中间注入井，将替代系列中的生产井转换为注入井，通过剩余的生产井通过 施加一组新的流动梯度，一个预定期间在生产井上的驱动流体的突破处发生，另一个在注入预定的突破体积时产生继续通过突破。

公开(公告)号：US3608635A

公开(公告)日：1971-09-28

申请号：US3608635D

申请日：1969-06-30

Applicant: TEXACO INC

Inventor： HOYT DONALD L

IPC: E21B43/30 ,  E21B43/20 ,  E21B43/22

CPC classification number: E21B43/30

Abstract: The interface between driving and driven fluids in a secondary recovery operation is retarded and/or reshaped after a cusp has developed by injection of fluids via wells controlling the advance of flow gradients and to delay the arrival of the injected driving fluid into the vicinity of a production well by the imposition of a dynamic gradient barrier of produced hydrocarbon fluids to spread the interface.

公开(公告)号：US3603395A

公开(公告)日：1971-09-07

申请号：US3603395D

申请日：1969-06-30

Applicant: TEXACO INC

Inventor： HOYT DONALD L

IPC: E21B43/30 ,  E21B43/22

CPC classification number: E21B43/30

Abstract: The interface between driving and driven fluids in a secondary recovery operation is reshaped after a cusp has developed by injection of fluids via control wells to delay the arrival of the injected driving fluid into the vicinity of a production well, and by retarding cusp formation via wells controlling the advance of flow gradients to spread the interface.

公开(公告)号：US3593787A

公开(公告)日：1971-07-20

申请号：US3593787D

申请日：1968-12-24

Applicant: TEXACO INC

Inventor： HOYT DONALD L

IPC: E21B43/16 ,  E21B43/30 ,  E21B43/20 ,  E21B43/22

CPC classification number: E21B43/16 ,  E21B43/30

Abstract: The advance of the interface between driving and driven fluids in a secondary recovery operation toward a production well is delayed by the imposition of a gradient barrier of produced hydrocarbon fluids injected into the formation via a control well in line between an injection well and a production well, the recirculation of the formation hydrocarbon fluids providing a dynamic barrier.

公开(公告)号：US3393735A

公开(公告)日：1968-07-23

申请号：US51705265

申请日：1965-12-28

Applicant: TEXACO INC

Inventor： ALTAMIRA ANTHONY F ,  HOYT DONALD L

IPC: E21B43/16 ,  E21B43/30

CPC classification number: E21B43/30 ,  E21B43/16

公开(公告)号：US3109487A

公开(公告)日：1963-11-05

申请号：US86259359

申请日：1959-12-29

Applicant: TEXACO INC

Inventor： HOYT DONALD L

IPC: E21B43/16 ,  E21B43/30

CPC classification number: E21B43/16 ,  E21B43/30