37results about How to "Reliable seating" patented technology

A pair of pants includes two pant legs, with each pant leg having a front pant panel and a back pant panel which are interconnected by two side seams. The front and back pant panels are sized such that one of the side seams has a seam course which, at least in one section is shifted to the back toward a leg back side of a wearer.

A connector protection structure of motor includes a motor case that houses the motor, a connector that is placed on an outer surface of the motor case, and a protection member that is provided between the connector and a side member (LSM) of a vehicle, and that is fixed on the motor case. The protection member includes a protection section that is provided in a projected arrangement around the connector, a fixing section that is linked to the protection section and that is fixed by a bolt on a rear surface of the motor case, and a support section that is linked to the fixing section, that includes a through hole through which a stud, provided in a projected arrangement on a side surface of the motor case, penetrates, and that is supported on the side surface by the stud.

A pair of pants includes two pant legs, with each pant leg having a front pant panel and a back pant panel which are interconnected by two side seams. The front and back pant panels are sized such that one of the side seams has a seam course which, at least in one section is shifted to the back toward a leg back side of a wearer.

The invention discloses an expandable air barrier device and a method of using the same for injection remediation of underground water pollution. The expandable air barrier device comprises a main air injection pipe, a rubber cylinder assembly made of elastic materials is sleeved to the middle of the main air injection pipe, and a group of rubber cylinder connectors, protection sleeves, middle connectors and connecting sleeves are symmetrically sleeved on the upper portion and the lower portion of the rubber cylinder assembly of the main air injection pipe. The connecting sleeve I is connected between the middle connector I and the upper connector, the upper connector is provided with an upper port used for connecting the main air injection pipe with an external air injection pipe, an inflating port is arranged beside the upper port, the upper end of the inflating port is connected with an external inflating pipe, and the lower end of the inflating port extends downward to be communicated with an air injection cavity. Quick and one-way air injection in an air injection well can be guaranteed by means of the expandable air barrier device and the method, and the requirements of large-scale in-situ remediation of underground water in volatile organic pollutant areas by air injection technique can be met. Further, the expandable air barrier device and the method promote development of the underground water air injection technique and have wide application prospect.

The invention discloses a probe of an FDT (Formation Dynamic Test) module type formation tester of a formatting dynamic monitoring system, belonging to the technology of oil-gas exploration. The probe comprises a probe piston, a packer, a probe body, a connecting plate, a connecting screw, a filter sleeve, a filter piston, a probe plug, an elastic block, a positioning sleeve, a baffle ring, a piston body, a pressure-limiting valve, a guide block, a fixing screw and a fluid conveying pipe. According to the probe disclosed by the invention, the area of a formation which is packed by the packer is enlarged, a plurality of diversion trenches are added beside a sampling port of the packer, consequently, liquid sampling is facilitated, and the FDT module type formation tester can be more effectively and safely used in an unconsolidated formation, an oil sheet and a low permeable formation; the FDT module type formation tester is more reliable in sealing, more convenient in positioning and faster in sampling; and the FDT module type formation tester is more convenient and reliable to use, wider in application range and more outstanding in effect.

The invention relates to the field of oilfield heavy oil exploitation equipment, in particular to a double packer steam injection integrated device and method for oilfield heavy oil exploitation. The technical solution is: the lower end of the upper packer is connected to the lower packer through the layer spacer tube and the connecting core tube, the lower end of the steam injection valve is equipped with a seat sealer and a one-way oil recovery unit; the inner cavity of the upper packer is installed with a hand The core tube, the lower end of the lost core tube is connected to the layer spacer tube, the connecting core tube, and the compensation core tube. The lower end of the compensation core tube passes through the lower packer and is connected to the seat seal steam injection plug, and the lower side of the ball seat is provided with a seat seal The seat sealer is fixedly connected to the casing inner cavity of the steam injection valve by locking the fixed force pin. The beneficial effect is that the present invention is lowered into the well at one time, so that the seat seal of the two oil layers is reliable, and the material injected during steam injection is avoided. The efficiency of steam injection is improved due to the loss of energy, and at the same time, the corrosion of oil well casing is reduced, and the service life of oil well is prolonged; the construction procedure is reduced, the labor intensity of workers is reduced, and the construction period is shortened.