Oilfield well sealing device
A technology for sealing wells and oil fields. It is applied in wellbore/well valve devices, sealing/isolation, wellbore/well components, etc. problem, to achieve the effect of easy cleaning and management
Pending Publication Date: 2019-05-24
任丘市本溪石油设备有限公司
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- Description
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Problems solved by technology
The original well shutdown and plugging technology is more difficult for later plugging management and recovery and reproduction, which is not conducive to safety, environmental protection, standardization and visual management
Method used
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Embodiment Construction
[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0021] The object of the present invention is to provide an oilfield well sealing device to solve the above-mentioned problems in the prior art, simplify the difficulty of well sealing, and at the same time facilitate follow-up management and resume production.
[0022] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the ...
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The invention discloses an oilfield well sealing device which comprises a flipping assembly and a connecting assembly. The flipping assembly comprises an overflow box, a tapered cover and a lengthening tapered plug, the tapered cover is arranged at the top of the overflow box, one end of the tapered cover is hinged with the overflow box, the other end opposite to the tapered cover is detachably connected with the overflow box, one end of the lengthening tapered plug extends to the inside of the overflow box, the lengthening tapered plug is connected with a constant pressure relief valve and iscommunicated with the inner cavity of the overflow box, the overflow box is provided with air-bleed holes which can be communicated with the outside environment, and the lengthening tapered plug is communicated with a casing head of the oil well. By the arrangement, the casing head is connected with a second flange, the lengthening tapered plug is finally communicated with the casing head throughconnection of a first flange and the second flange, and convenience is brought to pressure relief, oil and gas drainage and other operations; the overflow box is detachably connected with the taperedbox, so that clean management is facilitated, and convenience is brought to recovery of oilfield reproduction.
Description
technical field [0001] The invention relates to the technical field of oilfield well shutdown management devices, in particular to an oilfield well shutdown device. Background technique [0002] With the continuous deepening of oilfield development, some oil and water wells have increased the number of long shutdown wells due to various reasons such as formation energy decline, technology, geology, and measures. This part of the wellhead has been exposed in the field for a long time, and it is severely corroded by wind and rain, and debris is littered in the casing, making it difficult to identify and find. In particular, some oil wells are currently unable to produce normally, but oil production units need to regularly release blowouts, release pressure, and operate, or use oil recovery trucks to recover "oil caps" to increase crude oil production. The original well shutdown and plugging technology is difficult for later plugging management and recovery and reproduction, w...
Claims
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Login to View More IPC IPC(8): E21B33/03E21B34/02
Inventor 张帆陈琼陶张明生王喜婷闫磊孙晓松
Owner 任丘市本溪石油设备有限公司