Gas lift tool and using method
A gas lift and tool technology, applied in the field of oil and gas field exploitation, can solve the problems of easily damaged formations, cumbersome operations, and high operating costs
Active Publication Date: 2020-12-01
PETROCHINA CO LTD
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Problems solved by technology
However, since the preset pressure of the gas lift valve is fixed, if you want to adjust the preset pressure, you need to lift the gas lift valve out of the ground first, the operation is cumbersome, the operation cycle is long, and the operation cost is high
Moreover, when lifting the gas lift valve out of the ground, it is necessary to inject well killing fluid to kill the well, which is easy to damage the formation
Method used
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Embodiment Construction
[0044] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0045] figure 1 It is a structural schematic diagram of a gas lift tool shown according to an exemplary embodiment.
[0046] Such as figure 1As shown, the gas lift tool includes: a mandrel 1 and a plug 2 . The working cylinder 1 includes a first cylinder body 101 and a gas lift hole 102 , the gas lift hole 102 is disposed on the first cylinder body 101 , and a groove 103 is disposed on the inner wall of the first cylinder body 101 .
[0047] Such as figure 1 As shown, the stopper 2 includes a second cylinder 201, a sleeve 202, a lifting sleeve 203, a wire spring 204 and a telescopic elastic block 205, the lifting sleeve 203 is sleeved on the outside of the second cylinder 201, and the sleeve 202 is sleeved It is arranged on the out...
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The invention discloses a gas lift tool and a using method, and belongs to the technical field of oil and gas field exploitation. The gas lift tool comprises a working barrel and a blanking plug, theworking barrel comprises a first barrel body and a gas lift hole, the gas lift hole is formed in the first barrel body, and a groove is formed in the inner wall of the first barrel body; the blankingplug comprises a second barrel body, a sleeve, a lifting sleeve, a wire spring and a telescopic elastic block, the lifting sleeve is arranged on the outer side of the second barrel body in a sleevingmode, the sleeve is arranged on the outer side of the lifting sleeve in a sleeving mode, and the wire spring is connected with the lifting sleeve and the telescopic elastic block; the surface, opposite to the lifting sleeve, the wire spring and the telescopic elastic block, of the second barrel body forms a conical surface; when the second barrel body blocks the gas lift hole, the lifting sleeve moves in the direction close to the telescopic elastic block, so that the telescopic elastic block pops up and is clamped in the groove; or the lifting sleeve moves in the direction away from the telescopic elastic block, so that a telescopic module is separated from the groove. According to the provided gas lift tool, a gas lift valve does not need to be arranged, operation is simple, and operation time and operation cost are saved.
Description
technical field [0001] The invention relates to the technical field of oil and gas field exploitation, in particular to a gas lift tool and a usage method. Background technique [0002] The gas lift process refers to the process of artificially injecting gas into the well to mix the injected gas with oil and gas when the energy supplied by the formation is not enough to lift the oil and gas from the bottom of the well to the surface, and using the expansion of the gas to lift the oil and gas in the well to the surface A method of oil extraction. The gas lift process has the advantages of simple process, easy operation, unaffected by well structure and well fluid medium, low cost, and rapid production, etc., and has been widely used in oil and gas field production. [0003] The current gas lift tool includes a work cylinder, the work cylinder is provided with a gas lift hole, and a gas lift valve is installed on the gas lift hole. When the pressure of the gas lift valve rea...
Claims
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Patent Timeline
Login to View More IPC IPC(8): E21B43/12
CPCE21B43/122E21B43/123
Inventor 朱鹏马辉运叶长青孙风景彭杨熊杰段蕴琦
Owner PETROCHINA CO LTD