Under-well vibrating and cementing tool
A technology of tools and vibrating components, which is applied in wellbore/well components, vibration generating devices, earthwork drilling and production, etc., can solve problems such as complex cementing site construction, improve cementing quality, simplify construction technology, and reduce processing costs Effect
Active Publication Date: 2015-11-25
BC P INC CHINA NAT PETROLEUM CORP +1
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Problems solved by technology
Although vibration cementing tools such as mechanical, magnetostrictive, piezoelectric ceramic, audio, surface annular hydraulic or air pulse can vibrate during the waiting process of cement slurry, they need ground cable power supply and self-contained cementing tools. Auxiliary equipment changes the conventional cementing process, resulting in complex cementing site construction
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[0027] It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
[0028] A downhole vibration cementing tool, comprising: a motor vibration assembly 3, a battery-powered assembly 2 and a push switch, wherein the motor vibration assembly 3 is used to generate radial vibration, and the motor vibration assembly 3 includes a motor 308; the battery-powered assembly 2 is used for Supply power to the motor vibration component 3, and the battery-powered component 2 contains a battery 211b; the push switch is used to switch the motor vibration component 3, and the push switch is connected to the motor vibration component 3 and the battery-powered component 2, such as figure 1 shown.
[0029] The push switch is connected with the motor vibrati...
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The invention provides an under-well vibrating and cementing tool. The under-well vibrating and cementing tool comprises a motor vibrating assembly (3), a battery power supplying assembly (2) and a pressing switch, wherein the motor vibrating assembly (3) is used for generating radial vibration and contains a motor (308); the battery power supplying assembly (2) is used for supplying power for the motor vibrating assembly (3) and contains a battery (211b); the pressing switch is used for starting and stopping the motor vibrating assembly (3) and connected with the motor vibrating assembly (3) and the battery power supplying assembly (2). According to the under-well vibrating and cementing tool disclosed by the invention, the under-well radial vibration can be realized in the stage of waiting on cement paste setting, besides the under-well vibrating and cementing tool is simple in design, low in processing cost and convenient to assemble, through the use of the under-well vibrating and cementing tool, a conventional well cementing technology does not need to be changed, and on the basis that the well cementing quality is further improved, an on-site vibrating and cementing construction technology is simplified.
Description
technical field [0001] The invention relates to a downhole vibration cementing tool. Background technique [0002] In the cementing process, vibrating cement slurry is one of the effective technical means to improve the cementing quality. Vibration cementing tools at home and abroad can be divided into hydraulic pulse type, mechanical type, magnetostrictive type, piezoelectric ceramic type, acoustic type, ground annular hydraulic or air pulse type and other vibration cementing tools according to the principle of action. Vibratory cementing tools are the most widely used. [0003] The hydraulic pulse vibration cementing tool can only generate vibration in the process of cement injection and replacement of cement slurry, and cannot realize vibration during the waiting setting process. Experiments show that vibration is a key step to improve the cementing quality during the cement slurry waiting process. Although vibration cementing tools such as mechanical, magnetostrictive...
Claims
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IPC IPC(8): E21B33/13E21B28/00
Inventor 刘硕琼尹宜勇曲从锋袁进平任星
Owner BC P INC CHINA NAT PETROLEUM CORP