Drilling pressure detection device and its diaphragm force mechanism
A detection device and diaphragm technology, which is applied in the direction of measurement, earthwork drilling, wellbore/well components, etc., can solve the problems of reducing the measurement accuracy of the drilling pressure detection device, difficult to accurately transmit pressure, and poor dynamic characteristics of pressure transmission. Achieve the effects of avoiding mechanical damage to the diaphragm, accurately transmitting pressure, and improving measurement accuracy
Active Publication Date: 2022-02-01
PETROCHINA CO LTD
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Problems solved by technology
In the process of realizing the present application, the inventors of the present application found that because the corrugated diaphragm is arranged in a unidirectional corrugated shape, it is difficult to produce uniform deformation when the corrugated diaphragm is pressed, resulting in poor dynamic characteristics of pressure transmission. Therefore, it is difficult to accurately transmit pressure, thereby reducing the measurement accuracy of the entire drilling pressure detection device
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[0026] In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described The embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the scope of protection of this application. For example, in the following description, forming the second part above the first part may include an embodiment in which the first part and the second part are formed in a direct contact manner, and may also include an embodiment in which the first part and the second part are formed in a non-direct contact manner ( That is,...
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The embodiment of the present application provides a drilling pressure detection device and its diaphragm force mechanism. The diaphragm force mechanism includes a diaphragm body. The diaphragm body has a flat front and back. A uniformly distributed first blind hole, and a plurality of uniformly distributed second blind holes are opened on the back surface, and the axis of the first blind hole and the axis of the second blind hole are respectively connected with the axis of the diaphragm body. axis parallel. The embodiment of the present application can not only improve the dynamic characteristics of pressure transmission of the diaphragm stress mechanism and the measurement accuracy of the drilling pressure detection device, but also prolong the service life of the diaphragm stress mechanism and facilitate the cleaning of the diaphragm stress mechanism.
Description
technical field [0001] The present application relates to the technical field of drilling pressure measurement, and in particular, to a drilling pressure detection device and a diaphragm force-bearing mechanism thereof. Background technique [0002] During the drilling process, in order to accurately grasp the progress of the drilling process, it is generally necessary to grasp the pressure test data of the well sealer in real time, and instruct the subsequent drilling operation process according to the pressure test parameters. Real-time is very important. At present, there are two ways to detect the pressure on the drilling site: one is the traditional pointer-type mechanical pressure gauge, which is read on site by the naked eye; the other is displayed by a general-purpose pressure sensor system. [0003] However, the pressure sensors used in the above-mentioned drilling site pressure detection methods generally use corrugated diaphragms as the force-bearing structure, s...
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IPC IPC(8): E21B47/06
CPCE21B47/06
Inventor 陈勋牛连强刘明涛王远王海燕邓红涛吴东奎张行郭红峰王俊英王涛赵潞陶丹唐永江赵景春杨杨
Owner PETROCHINA CO LTD