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Combined type double jet flow nozzle

A dual-jet, combined technology, which is used in jetting devices, drilling with liquid/gas jets, and spraying devices with movable outlets, etc., can solve problems such as low perforation efficiency and achieve the effect of improving perforation efficiency.

Inactive Publication Date: 2016-08-31
PETROCHINA CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The application number is ZL201020177781.9, which discloses a new type of hydraulic nozzle for high-pressure hydraulic deep penetration horizontal drilling, which can eliminate the helical bending of the high-pressure hydraulic jet hose, and the depth of the jet hole can reach more than 5m. The problem of low perforation efficiency

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  • Combined type double jet flow nozzle

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specific Embodiment approach

[0012] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS: The present invention will be further explained below with reference to the accompanying drawings: the present invention consists of a pressure cap 1, a rotating body 2, and a nozzle seat 3; wherein the right end of the pressure cap 1 is threadedly connected with the left end of the nozzle seat 3, and the rotating body 2 is placed on the nozzle seat 3. , And rely on the pressure cap 1 to press tightly.

[0013] The nozzle seat 3 has a rear jet hole HP, the number of rear jet holes HP is 4-6, the angle between the rear jet hole HP and the center line of the nozzle seat 3 for or .

[0014] There are 3-6 spiral grooves LXC on the side of rotating body 2, the angle between the spiral groove LXC on the side of rotating body 2 and the center line of rotating body 2 is .

[0015] The outer surface of the nozzle holder 3 has a circular arc structure.

[0016] The angle between the inlet JK1 of rotating body 2 and the center line ...

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Abstract

The invention relates to the technical field of oil field oil production engineering and belongs to a combined type double jet flow nozzle used for an oil-water well oil layer ground control underground level drilling device. The nozzle is designed for solving problems that a prior nozzle can only produce common continuous jet flows and rock crushing efficiency is low. The nozzle is composed of a pressing cap 1, a rotation body 2 and a nozzle base 3, wherein the right end of the pressing cap 1 is threaded to the left end of the nozzle base 3; the rotation body 2 is disposed in the nozzle base 3 and is pressed with the aid of the pressing cap 1. The nozzle is mainly applied to field construction of the oil-water well oil layer ground control underground level drilling device and has advantages of being simple in structure and capable of converting common continuous jet flows into rotation jet flows and thus achieving high rock crushing efficiency and the like.

Description

Technical field [0001] The invention relates to the technical field of oil production engineering, and belongs to a combined dual jet nozzle used for an oil-water well oil layer surface control downhole horizontal drilling device. Background technique [0002] Conventional nozzle devices for high-pressure hydraulic deep penetration horizontal drilling mainly have the following problems. Since there is no rear jet hole in the nozzle, the recoil force generated by the front jet hole jet and the propulsion force generated by the screw hydraulic device are easy to cause the jet hose Spiral bending occurs, making the jet hose close to the rock wall. The jet hole depth is generally within 2m, and the perforation success rate is only about 50%. Application number ZL201020177781.9 discloses a new type of hydraulic nozzle for high-pressure hydraulic deep penetration horizontal drilling, which can eliminate the spiral bending of the high-pressure hydraulic jet hose and the jet hole depth c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05B3/08E21B7/18
CPCB05B3/08E21B7/18
Inventor 王凤山张书进李士伟刘崇江李清忠蔡萌李海成高光磊李啸峰
Owner PETROCHINA CO LTD
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