Gun carrier fixing mechanism of perforator
A technology of fixing mechanism and perforator, which is applied in the fields of production fluids, wellbore/well components, earth-moving drilling and production, etc., can solve the problem of failure to effectively achieve fracturing oil production, increase in the loss of shaped energy jets, and deviation of perforating charges from blind holes. and other problems, to achieve the effect of high positioning accuracy, reducing loss and ensuring accurate alignment
Inactive Publication Date: 2015-08-12
SICHUAN PETROLEUM PERFORATING EQUIP
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Problems solved by technology
[0004] The technical problem to be solved and the technical task proposed by the present invention are to improve the prior art and provide a fixing mechanism for the bullet frame of the perforator, which solves the inconvenience of positioning and assembly of the bullet frame of the traditional perforator in the current technology, which is prone to shooting. The situation that the hole bomb deviates from the blind hole leads to the increase of the loss of the shaped jet, reduces the perforation depth, and cannot effectively realize the problem of fracturing oil recovery
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[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.
[0016] The bullet frame fixing mechanism of the perforator disclosed in the embodiment of the present invention can accurately locate the circumferential direction and the axial direction of the bullet frame assembly, ensure the precise alignment between the perforating bullet and the blind hole, and reduce the loss of the concentrated energy jet. Increase the perforation depth and increase the oil recovery output of fracturing.
[0017] Such as figure 1 As s...
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The invention discloses a gun carrier fixing mechanism of a perforator. The gun carrier fixing mechanism comprises a gun body and a gun carrier and is characterized in that the gun carrier is arranged in the gun body, one end of the gun carrier is connected with a fixing ring, the other end of the gun carrier is connected with a cushion ring, a locating pin is arranged on the fixing ring, a through key groove matched with the locating pin is formed in the inner wall of the gun body, and after the gun carrier is arranged in the gun body from one end of the through key groove, the fixing ring and the cushion ring are axially fixed through an axial fixing device. The gun carrier fixing mechanism of the perforator precisely locates the gun carrier in the circumferential direction and axial direction of assembling, it is ensured that a perforating bullet and a blind hole are precisely aligned, the loss of jet flow is reduced, an oil-gas channel between a shaft and a stratum can be effectively built, original cracks are provided for subsequent acidification, fracturing and the like, economic benefits are high, assembling is easy, convenient and fast, and locating precision is high.
Description
technical field [0001] The invention relates to perforating operation equipment in the technical field of oil field recovery, in particular to a bullet frame fixing mechanism of a perforator. Background technique [0002] The perforator is a tool used for well completion or cementing in the petroleum field. At present, the energy-shaping perforator is widely used, which uses the energy-gathering phenomenon of the explosion to generate the energy-gathering jet to penetrate the formation. With the continuous development of domestic oil and gas field development, the application of perforation and completion is becoming more and more extensive, and the requirements for the performance of perforating equipment are also getting higher and higher. Through the perforator, the oil and gas channel between the wellbore and the formation can be effectively established to provide original fractures for subsequent acidizing and fracturing, which has great economic and social benefits. ...
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IPC IPC(8): E21B43/119
Inventor 付代轩赵世华陈纪伟雷新华雷震刘玉龙周鑫杨清勇陈玉
Owner SICHUAN PETROLEUM PERFORATING EQUIP