Grabber for instrument in well mouth blowout prevention pipe
A technology of lubricator and grabber, which is applied in wellbore/well parts, measurement, earthwork drilling and production, etc. It can solve the problems of re-falling into the oil well and operating errors, so as to ensure safe production and reduce production accidents rate effect
Inactive Publication Date: 2016-08-17
徐秀
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Problems solved by technology
[0002] When logging in the oil field, some oil wells have a very high pressure, and the logging needs to use the blowout preventer. If the blowout preventer is not used, once a blowout occurs, the consequences will be very serious. After logging with the blowout preventer, When the instrument is lifted into the blowout preventer above the wellhead seat, the instrument needs to be fixed in the blowout preventer, otherwise there may be a danger of falling into the oil well again due to misoperation. When the blowout preventer is logging, the instrument is pulled up to the tool that can be fixed in the blowout pipe above the wellhead seat after logging. For this reason, we provide an instrument grabber in the wellhead blowout preventer
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[0015] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.
[0016] In the description of the present invention, it should be understood that the terms "portrait", "horizontal", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or It is implied that the device or element referred to must have a particular orientation, be constructed and operate in a particular ...
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The invention relates to a grabber for an instrument in a well mouth blowout prevention pipe. The grabber comprises a grabbing base body and a connector. The grabbing base body and the connector are in threaded connection. The grabbing base body is provided with a fixing pin hole. A fixing pin is arranged in the fixing pin hole. A grabbing tongue is rotationally connected to the fixing pin. A torsion spring is arranged at the portion, corresponding to a groove of the grabbing tongue, of the fixing pin. A torsion spring stop key is arranged in the grabbing base body. One side of the torsion spring abuts against the torsion spring stop key, and the other side of the torsion spring abuts against the grabbing tongue. The grabbing tongue is provided with a tongue pull ring. The tongue pull ring is provided with a special hook spanner. A steel wire penetrates in the grabbing base body and the connector. The bottom end of the steel wire is connected with an instrument connector. The upper end of the instrument connector is provided with a grabbing clamping groove. When the blowout prevention device is used for measuring a well, after well instrument through the instrument is finished, the grabber is lifted to the blowout prevention pipe above a well mouth base to fix the instrument in time, the phenomenon that the instrument falls into the oil well again due to misoperation is avoided, safety production is ensured, and the production accident rate is lowered.
Description
technical field [0001] The invention relates to an oil field wellhead tool, in particular to an instrument grabber in a wellhead blowout preventer. Background technique [0002] When logging in oilfields, the pressure in some oil wells is very high, so a blowout preventer needs to be used for well logging. If a blowout preventer is not used, once a blowout occurs, the consequences will be very serious. When the instrument is lifted into the blowout preventer above the wellhead seat, the instrument needs to be fixed in the blowout preventer. When the blowout preventer is logging, the tool is pulled up to the blowout preventer above the wellhead seat after logging is completed. For this purpose, we provide an instrument grabber in the wellhead blowout preventer. SUMMARY OF THE INVENTION [0003] The technical problem to be solved by the present invention is to provide an instrument grabber in the blowout preventer at the wellhead. When the blowout preventer is used in loggi...
Claims
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Login to View More IPC IPC(8): E21B23/01E21B47/00
CPCE21B23/01E21B47/00
Inventor 徐秀
Owner 徐秀