3 results about "Gas lift" patented technology

A well mouth eccentric pressurizing sleeve oil recycling mobile device of a production well is mainly composed of an articulated vehicle, an oil receiving can, an oil receiving pipe, an air compressor, an oil discharge valve, a gas pipe, an eccentric hanging mechanism, an oil return pipe and a check valve, the well mouth eccentric pressurizing sleeve oil receiving mobile device is characterized in that a production three-way flange at an upper part of a production tree is designed to be the eccentric hanging mechanism composed of an inlet air pipe hanging hole, an inlet air pipe hanging head installed at middle part of the inlet air pipe hanging hole, a gasket installed at an upper-middle part, a gas pipe connector having the check valve at the upper part and a connection hole installed at one side of the inlet air pipe hanging hole and integrated with a production three-way connection and the oil pipe hanging hole; the inlet air pipe hanging head is connected with an inlet air pipe extending into the sleeve for 100-200m; the gas pipe connector having the check valve is connected with an outtake of the air compressor installed on the articulated vehicle, a sleeve gate is connectedwith the oil receiving can installed on the articulated vehicle by the oil receiving pipe and further connected with a pipe in the well mouth by the oil return pipe and the check valve, the sleeve oil is recycled by means of air lifting, and loss of the sleeve oil is prevented.

The invention relates to an isolated gas lift drainage method. The isolated gas lift drainage method comprises the following steps: S1, a mounting pipe string is assembled, specifically, a first starting device, a punching gun (400), a second starting device and an isolated gas lift packer (100) are sequentially connected; S2, well lowering and punching are conducted, specifically, the mounting pipe string is lowered into the specified position from a production well pipe, and the first starting device controls the punching gun (400) to implement punching on the production well pipe; S3, upward lifting and setting are conducted, specifically, the mounting pipe string is upwards lifted, the isolated gas lift packer (100) is upwards moved to the punching position, and the second starting device controls the isolated gas lift packer (100) to conduct setting; S4, release and upward lifting are conducted, specifically, after setting, release is achieved, and the first starting device, the punching gun (400) and the second starting device are recovered to complete mounting; and S5, gas filling for liquid discharging is conducted, specifically, high-pressure gas is filled to discharge accumulated liquid. The mounting pipe string only needs to be lowered once, punching and setting are sequentially implemented, then the remaining mounting pipe string is lifted out, then mounting can becompleted, the process steps are simple, and mounting position control is more accurate.

The invention discloses a gas lift tool and a using method, and belongs to the technical field of oil and gas field exploitation. The gas lift tool comprises a working barrel and a blanking plug, theworking barrel comprises a first barrel body and a gas lift hole, the gas lift hole is formed in the first barrel body, and a groove is formed in the inner wall of the first barrel body; the blankingplug comprises a second barrel body, a sleeve, a lifting sleeve, a wire spring and a telescopic elastic block, the lifting sleeve is arranged on the outer side of the second barrel body in a sleevingmode, the sleeve is arranged on the outer side of the lifting sleeve in a sleeving mode, and the wire spring is connected with the lifting sleeve and the telescopic elastic block; the surface, opposite to the lifting sleeve, the wire spring and the telescopic elastic block, of the second barrel body forms a conical surface; when the second barrel body blocks the gas lift hole, the lifting sleeve moves in the direction close to the telescopic elastic block, so that the telescopic elastic block pops up and is clamped in the groove; or the lifting sleeve moves in the direction away from the telescopic elastic block, so that a telescopic module is separated from the groove. According to the provided gas lift tool, a gas lift valve does not need to be arranged, operation is simple, and operation time and operation cost are saved.