A directional drilling measuring device
A technology of drilling measurement and directional drilling, which is applied in the direction of measurement, drill pipe, drill pipe, etc., and can solve problems such as pipe stuck, broken, and excessive pullback force of the pipeline
Active Publication Date: 2018-03-09
BC P INC CHINA NAT PETROLEUM CORP +1
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Problems solved by technology
[0002] At present, due to the complex geology of the horizontal directional drilling and the cutting force of the reamer to the lower left during the crossing construction, the shape of the directional drilling hole is very irregular, which is easy to cause excessive drag force when the pipeline is pulled back , pipe stuck or even pipeline break accidents
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[0020] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation and working principle of the directional drilling measurement device proposed according to the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments .
[0021] see figure 1 , figure 2 , image 3 and Figure 4 , the directional drilling borehole measurement device provided by the embodiment of the present invention includes: a drill collar 1, a device body, at least one distance measuring device and a processor (not shown in the figure); the drill collar 1 passes through the device body; the drill collar The two ends of 1 are respectively connected with the first drill pipe and the second drill pipe through threads; the distance measuring device is arranged on the drill collar 1 or the device body, so that the distance measuring device ca...
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The invention relates to the technical field of measurement devices, and discloses a drill hole measurement device for a directional drill. The device comprises a drill collar, a device body, at least one distance measurement device and a processor, wherein the drill collar penetrates through the device body; two ends of the drill collar are connected with a first drill pipe and a second drill pipe respectively; the distance measurement device is arranged on the drill collar or the device body, so that the distance measurement device can rotate with the drill collar; a signal output end of the distance measurement device is connected with a signal input end of the processor. The drill collar is connected with the drill pipes at two ends, so that the distance measurement device can rotate with the drill pipes, and a measurement signal sent by the distance measurement device is reflected by the wall of the drilling hole; the processor is used for analyzing and processing the reflected signal, so that the shape and the hole forming quality of the drilling hole by the directional drill can be obtained.
Description
technical field [0001] The invention relates to the technical field of measuring devices, and is mainly applicable to a measuring device for directional drilling. Background technique [0002] At present, due to the complex geology of the horizontal directional drilling and the cutting force of the reamer to the lower left during the crossing construction, the shape of the directional drilling hole is very irregular, which is easy to cause excessive drag force when the pipeline is pulled back , pipe sticking or even pipeline breakage accidents. In order to ensure the smooth implementation of pipeline pullback, it is necessary to measure the shape and quality of directional drilling holes, so as to guide the reasonable construction of directional drilling under complex geological conditions and reduce the risk of crossing. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a directional drilling hole measuring devic...
Claims
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IPC IPC(8): E21B47/00E21B17/16
CPCE21B47/00
Inventor 刘全利白世武吕新昱刘艳利薛岩李佳周广言王雪高静安志彬
Owner BC P INC CHINA NAT PETROLEUM CORP