公开(公告)号：US4375834A

公开(公告)日：1983-03-08

申请号：US276945

申请日：1981-06-24

申请人： Donald E. Trott

发明人： Donald E. Trott

IPC分类号： E21B43/116 ,  E21B43/1185 ,  E21B43/119

CPC分类号： E21B43/1185 ,  E21B43/116 ,  E21B43/119

摘要： Method and apparatus for perforating a well casing (14) with a large pressure differential toward the well casing (14) from the surrounding oil and gas-bearing strata using a casing gun attached on a wireline below the tubing is disclosed. A perforator (12) is attached to a casing gun adapter (10), the casing gun adapter (10) is releasably attached to production tubing (16) and inserted into the well casing (14). After the production tubing (16) is installed, a collar locator (26) and a firing mechanism (44) are run on a wireline and attached to the casing gun adapter (10). The casing gun adapter (10) and the perforator (12) are released from the tubing and lowered to a predetermined stratum using a collar locator where the perforator (12) is detonated. After detonation, the perforator (12) and casing gun adapter (10) are raised and secured in the production tubing (16). The collar locator (26) and the firing mechanism (44) are detached from the casing gun adapter (10). A hold-down means (510, 610 or 710) is attached to the perforator (12) or to the casing gun adapter (10). The hold-down means (510, 610 or 710) holds the perforator (12) in the well casing (14) during perforation and prevents movement of the perforator (12) after perforation. In an alternate embodiment, the hold-down (610) wedges the perforator (12) in the well casing during and after perforation.

摘要翻译： 公开了一种用于使用连接在管道下方的电缆上的套管枪从周围的油和气体地层向井套管（14）穿过具有较大压力差的井套管（14）的方法和装置。 穿孔器（12）附接到套管枪适配器（10），套管枪适配器（10）可释放地附接到生产管道（16）并插入井套管（14）中。 在安装生产管道（16）之后，套管定位器（26）和击发机构（44）在有线上运行并附接到套管枪适配器（10）。 套管枪适配器（10）和穿孔器（12）从管道释放并且使用穿孔器（12）被引爆的套环定位器降低到预定层。 在引爆之后，穿孔器（12）和套管枪适配器（10）被升高并固定在生产管道（16）中。 套环定位器（26）和击发机构（44）从套筒枪适配器（10）分离。 压紧装置（510,610或710）附接到穿孔器（12）或套管枪适配器（10）。 压紧装置（510,610或710）在穿孔期间将穿孔器（12）保持在井套管（14）中，并且防止穿孔器（12）穿孔后的移动。 在替代实施例中，在穿孔期间和之后，压紧装置（610）在井套管中楔入穿孔器（12）。

公开(公告)号：USRE30829E

公开(公告)日：1981-12-22

申请号：US62014

申请日：1979-07-30

申请人： Donald E. Trott

发明人： Donald E. Trott

IPC分类号： E21B43/1185 ,  E21B43/119

CPC分类号： E21B43/119 ,  E21B43/1185

摘要： Method and apparatus for effecting perforation of a well casing with a casing gun while maintaining pressure in the well bore at a lower level than the pressure in the surrounding reservoir at the point of perforation. Before production tubing is run into the well, the casing gun is deposited in the bore below the desired production level. After the tubing is installed, borehole pressure is reduced to the desired level by swabbing the tubing and an automatic coupling and decoupling pickup tool is lowered on a wireline through the tubing and attached, mechanically and electrically, to the casing gun. The casing gun is then raised to the production level, as measured by locating the casing collars. Whe the gun is properly located, it is activated through an electrical cable carried along with the wireline. The casing gun perforates the well casing and surrounding formation, and is then decoupled from the wireline to be left in the well.

公开(公告)号：US06408571B1

公开(公告)日：2002-06-25

申请号：US09704853

申请日：2000-11-02

申请人： Donald E. Trott

发明人： Donald E. Trott

IPC分类号： E05F1300

CPC分类号： E05F1/068 ,  E05F1/008 ,  E05Y2900/40 ,  E06B11/04

摘要： The present disclosure provides an automatic closing gate having a gate post and at least one self-closing hinge attaching the gate to the gate post. A catch post having a catch holds the gate in an open position for a period of time. The catch releases the gate after the period of time and the gate is free to swing shut.

摘要翻译： 本公开提供了一种自动关闭门，其具有门柱和至少一个将门连接到门柱的自闭合铰链。 有一个抓地抓住把门放在一个开放的位置一段时间。 一段时间之后，这个捕手释放了大门，门口自由摆动。

公开(公告)号：US4199210A

公开(公告)日：1980-04-22

申请号：US887713

申请日：1978-03-17

申请人： Donald E. Trott

发明人： Donald E. Trott

IPC分类号： E21B17/02 ,  E21B23/00 ,  E21B43/1185 ,  E21B43/119 ,  H01R13/54

CPC分类号： E21B23/006 ,  E21B17/028 ,  E21B43/1185 ,  E21B43/119 ,  Y10T403/7015

摘要： Method and apparatus for effecting perforation of a well casing with a casing gun while maintaining pressure in the well bore at a lower level than the pressure in the surrounding reservoir at the point of perforation. Before production tubing is run into the well, the casing gun is deposited in the bore below the desired production level. After the tubing is installed, borehole pressure is reduced to the desired level by swabbing the tubing and an automatic coupling and decoupling pickup tool is lowered on a wireline through the tubing and attached, mechanically and electrically, to the casing gun. The casing gun is then raised to the production level, as measured by locating the casing collars. When the gun is properly located, it is activated through an electrical cable carried along with the wireline. The casing gun perforates the well casing and surrounding formation, and is then decoupled from the wireline to be left in the well.

摘要翻译： 用于在将井眼内的压力保持在低于在穿孔点处的周围储存器中的压力的​​水平的情况下用套管枪进行井套管的穿孔的方法和装置。 在生产管道进入井之前，套管枪沉积在低于所需生产水平的孔内。 在安装管道之后，通过擦拭管道将钻孔压力降低到所需的水平，并且自动耦合和去耦拾取工具通过管线在电缆上降低并且机械地和电气地附接到套管枪。 然后将套管枪升高到生产水平，如通过定位套管套筒所测量的。 当枪正确定位时，它将通过与电缆一起携带的电缆激活。 套管枪穿透井套管和周围地层，然后与钢丝绳分离以留在井中。

公开(公告)号：US4113016A

公开(公告)日：1978-09-12

申请号：US836758

申请日：1977-09-26

申请人： Donald E. Trott

发明人： Donald E. Trott

IPC分类号： E21B43/1185 ,  E21B43/119 ,  E21B29/00

CPC分类号： E21B43/1185 ,  E21B43/119

摘要： Method and apparatus for effecting perforation of a well casing with a casing gun while maintaining pressure in the well bore at a lower level than the pressure in the surrounding reservoir at the point of perforation. Before production tubing is run into the well, the casing gun is deposited in the bore below the desired production level. After the tubing is installed, borehole pressure is reduced to the desired level by swabbing the tubing and an automatic coupling and decoupling pickup tool is lowered on a wireline through the tubing and attached, mechanically and electrically, to the casing gun. The casing gun is then raised to the production level, as measured by locating the casing collars. Whe the gun is properly located, it is activated through an electrical cable carried along with the wireline. The casing gun perforates the well casing and surrounding formation, and is then decoupled from the wireline to be left in the well.