公开(公告)号：US3839871A

公开(公告)日：1974-10-08

申请号：US35980473

申请日：1973-05-14

Applicant: DRESSER IND

Inventor： DYER N ,  WALKER R ,  ARRINGTON T

IPC: E02D5/20 ,  E02D37/00 ,  E02D29/00

CPC classification number: E02D5/20 ,  E02D37/00

Abstract: An earthen dam is repaired without draining the water from the lake behind the dam and without disturbing the integrity of the earthen dam. A first hole is bored into the dam. As the hole is being drilled, drilling mud is circulated through the hole to remove cuttings and to maintain the integrity of the earthen dam. The first hole is lined with a casing. A second hole is bored into the earthen dam immediately adjacent and partially overlapping the first hole. The boring of the second hole disintegrates a portion of the casing in the first hole providing an interconnection between said first hole and said second hole. Drilling mud is circulated in the second hole during the boring of said second hole to remove cuttings and to maintain integrity of the earthen dam. The second hole is lined with a casing and the first hole is filled with concrete. The concrete displaces the drilling mud in the first hole and the concrete will not enter the second hole because of the lining in the second hole. By repeatedly drilling holes in the aforementioned manner, a monolithic fluid impervious underground wall is constructed along the center of the dam thereby substantially reinforcing the earthen dam.

Abstract translation: 一个土坝被修复，不会从大坝后面的湖里排水，也不会扰乱土坝的完整性。 第一个洞无聊进入大坝。 当钻孔时，钻孔泥浆通过孔循环以除去切屑并保持泥土的完整性。 第一个孔内有一个外壳。 一个第二个洞钻进了土坝，紧邻着第一个洞。 所述第二孔的钻孔使所述第一孔中的所述壳体的一部分分解，从而在所述第一孔和所述第二孔之间形成互连。 在所述第二孔的钻孔期间，钻井泥浆在第二孔中循环以除去切屑并保持泥土的完整性。 第二个孔衬有一个套管，第一个孔填充混凝土。 混凝土取代第一个孔中的钻井泥浆，由于第二个孔中的衬里，混凝土不会进入第二个孔。 通过以上述方式反复钻孔，沿着坝的中心构建整体式不透液体的地下壁，从而基本上加强了土坝。

公开(公告)号：US3766995A

公开(公告)日：1973-10-23

申请号：US3766995D

申请日：1971-10-20

Applicant: DRESSER IND

Inventor： YOUNG J ,  ARRINGTON T

IPC: E21B3/02 ,  E21B7/00 ,  E21B7/28 ,  E21C23/00

CPC classification number: E21B7/28 ,  E21B3/02 ,  E21B7/00

Abstract: An earth boring method using a multiplicity of motors provides a wide range of rotational torques and speeds for optimum drilling performance. One of the multiplicity of motors is supplied with power to drive the rotary drill string at high speed for drilling a pilot hole with the other motors disengaged from the bull gear. When enlarging the pilot hole into a large diameter hole two or more of the motors are supplied with power and engaged with the bull gear.

Abstract translation: 使用多个电动机的大地钻孔方法提供了广泛的旋转转矩和速度以获得最佳的钻井性能。 多个电动机之一被提供动力以高速驱动旋转钻柱，用于钻出导向孔，其他电动机与大齿轮脱离。 当将导向孔扩大到大直径孔时，两个或多个电动机被供电并与大齿轮啮合。

公开(公告)号：US3780816A

公开(公告)日：1973-12-25

申请号：US3780816D

申请日：1972-03-14

Applicant: DRESSER IND

Inventor： ARRINGTON T ,  DYER N

IPC: E21B7/02 ,  E21B15/04 ,  E21B19/086 ,  E21C5/11

CPC classification number: E21B7/027 ,  E21B15/04 ,  E21B19/086

Abstract: Rotary drilling means are mounted for travel along the support frames of a raise drill. At least one tandem thrust cylinder system provides the force for moving the rotary drilling means along the support frame. The tandem thrust cylinder system includes a first thrust cylinder and two second thrust cylinders mounted so that the thrust force and movement of said first thrust cylinder is directly opposed to the thrust forces and movements of said two second thrust cylinders. The combined cross sectional area of said two second thrust cylinders is substantially equal to the cross sectional area of said first thrust cylinder thereby maintaining constant force throughout the stroke of the tandem thrust cylinder system. The cylinders are manifolded so that fluid enters one port and is routed to all of the cylinders to equalize the rate of travel and the forces exerted.

Abstract translation: 旋转钻孔装置安装成沿着钻头的支撑架移动。 至少一个串联推力缸系统提供用于沿着支撑框架移动旋转钻孔装置的力。 串联推力缸系统包括第一推力缸和两个第二推力缸，其安装成使得所述第一推力缸的推力和运动与所述两个第二推力缸的推力和运动直接相反。 所述两个第二推力缸的组合截面积基本上等于所述第一推力缸的横截面面积，从而在串联推力缸系统的整个行程中保持恒定的力。 气缸是歧管的，使得流体进入一个端口并被引导到所有气缸以均衡行进速率和施加的力。