Oil-water well plugging device and using method
A plugging device and technology for oil and water wells, which are used in earth-moving drilling, sealing/isolation, wellbore/well components, etc., and can solve the problem of difficult to effectively plug the target layer, no depth adjustment function, poor impact resistance, etc. problems, to achieve the effect of fast construction speed, improved construction efficiency, and low labor intensity
Pending Publication Date: 2022-05-13
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology
The glass sheet in the device also has the problems of being fragile and having poor impact resistance
[0011] Although the above-mentioned device and method can realize plugging and ash injection of oil-water wells and have certain effects, when the distance between the production layer and the plugging layer is less than 1m, the above-mentioned plugging method and device are difficult to realize because they do not have the function of depth correction. Effective blocking of the target layer
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[0051] The accompanying drawings are for reference and description only, and are not intended to limit the protection scope of the present invention. The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. 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.
[0052] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used ...
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The invention relates to an oil-water well plugging device and a using method. The oil-water well plugging device comprises a halter, a material containing barrel and a control assembly, and the halter is sequentially connected with the material containing barrel and the control assembly; the conveying guide wheel comprises a transverse guide wheel and a middle guide wheel, and a tension meter is also arranged in the cable for hanging the middle guide wheel; the control assembly is provided with a material injection outer cylinder, a sliding sleeve and a firing pin sleeve, a sliding sleeve overflow port is formed in a body of the sliding sleeve, an outer overflow port is formed in a body of the material injection outer cylinder, the sliding sleeve is installed in the material injection outer cylinder above the shear pin, the firing pin sleeve is fixed in the material injection outer cylinder below the shear pin, and the firing pin is installed in the firing pin sleeve; one end of the material containing barrel suspension cable is connected with the power device, and the other end of the material containing barrel suspension cable bypasses between the transverse guide wheel and the middle guide wheel and then is connected with the halter. The material containing barrel is used for hanging cable conveying, the construction speed is high, and the labor intensity of operators is small; ash covering operation can be achieved, sand filling operation can also be achieved, the construction efficiency is greatly improved, and the risk of pipe column clamping does not exist.
Description
technical field [0001] The invention relates to a plugging device and a usage method for an oil-water well in the petroleum industry, in particular to a plugging device and a usage method for an oil-water well. Background technique [0002] With the deepening of oilfield exploration and development, there are more and more old wells. In order to improve the recovery of crude oil, wells that need to be sealed and modified will follow. According to statistics, oil fields that need to be sealed and modified every year There are more and more wells. [0003] At present, the commonly used method for sealing and changing layers of oil and water wells is to cooperate with the operation string in the well through pump trucks and tank trucks on the ground to realize the mechanical sealing of the operation string or to drop the operation string downhole. Carry out construction such as sand filling or cement plugging on the oil and water layers. Among them, sand filling is the simple...
Claims
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Login to View More IPC IPC(8): E21B33/13E21B47/092
CPCE21B33/13
Inventor 孙渊平李法军曹方起姚红光赵秀国李鹏
Owner CHINA PETROLEUM & CHEM CORP