CN201991503U - Nozzle-built-in hydraulic jet - Google Patents

Nozzle-built-in hydraulic jet Download PDF

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Publication number
CN201991503U
CN201991503U CN 201120078839 CN201120078839U CN201991503U CN 201991503 U CN201991503 U CN 201991503U CN 201120078839 CN201120078839 CN 201120078839 CN 201120078839 U CN201120078839 U CN 201120078839U CN 201991503 U CN201991503 U CN 201991503U
Authority
CN
China
Prior art keywords
nozzle
built
nozzles
hydraulic jet
wells
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN 201120078839
Other languages
Chinese (zh)
Inventor
韩进
杨立昌
曹海燕
马玉华
常建强
吕文波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Petroleum and Chemical Corp
Oil Production Technology Research Institute of Sinopec Zhongyuan Petroleum Engineering Co Ltd
Original Assignee
China Petroleum and Chemical Corp
Oil Production Technology Research Institute of Sinopec Zhongyuan Petroleum Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Petroleum and Chemical Corp, Oil Production Technology Research Institute of Sinopec Zhongyuan Petroleum Engineering Co Ltd filed Critical China Petroleum and Chemical Corp
Priority to CN 201120078839 priority Critical patent/CN201991503U/en
Application granted granted Critical
Publication of CN201991503U publication Critical patent/CN201991503U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a nozzle-built-in hydraulic jet, which belongs to the technical field of matched devices of hydraulic jet perforation and fracturing operation strings of an oil-water-gas well. The nozzle-built-in hydraulic jet comprises a body and nozzles, wherein through holes with taper are uniformly arranged on the pipe wall of the body, and the outer walls of the nozzles are designed into tapered surfaces with the same taper of the through holes on the pipe wall of the body; and the nozzles are arranged in the through holes. Compared with a nozzle-built-out hydraulic jet, the assembly working procedure is reduced, and the nozzles are not easily jetted out in the construction process, accordingly, the flow coefficient and the energy conversion efficiency of the nozzles are improved, and the jet impact force is improved. The nozzle-built-in hydraulic jet can be suitable for single-layer or multi-layer perforation and fracturing construction of oil production, gas injection and water injection wells of vertical wells, horizontal wells, inclined wells, or casings with the sizes of phi 139.70mm and phi 77.80mm, and open hole completion, and meets the requirements of different wells for the perforation aperture and number, fracturing operation flow rate and formation fracturing pressure.

Description

Nozzle built-in type hydraulic ejector
Technical field
The utility model relates to a kind of nozzle built-in type hydraulic ejector, belongs to profit gas well hydraulic perforation, fracturing work tubing string corollary apparatus technical field.
Background technology
For the high-efficiency mining low permeability reservoir, improve operating efficiency and effect of increasing production, the jetting fracturing work is applied in the well-repairing work of all kinds of oil gas water wells more and more.Hydraulic ejector generally adopts the nozzle fitted outside at present, and nozzle adopts pressure cap to be fixed, because jet velocity is very high, pressure reduction is very big before and after the nozzle in the work progress, and nozzle is easily gone out by Ci, influences the normal operation and the operation effectiveness of jetting pressure break.
Chinese patent ZL 200620113021 discloses a kind of " novel hydropower ejector " is exactly use therein a kind of fitted outside hydraulic ejector, this ejector can satisfy the requirement of hydraulic perforation and fracturing design discharge capacity, also can satisfy different wells to perforation diameter and quantity, pressing crack construction discharge capacity, formation fracture pressure requirement.But in work progress, can damage because of factors such as pressure, firing rate degree cause pressure cap, nozzle is gone out by Ci, influences normal operation and operation effectiveness.
Summary of the invention
The purpose of this utility model is at the defective that the easy Ci of nozzle that above-mentioned prior art exists goes out, ejector easily lost efficacy, and nozzle built-in type hydraulic ejector is provided.
The utility model is achieved in that the utility model is made up of body, nozzle, is evenly equipped with the through hole of band tapering on the tube wall of body, the nozzle outer wall be designed to the body tube wall on the identical conical surface of through hole tapering, and be installed in its through hole.
On the nozzle outer wall, sealing ring is installed.
The leading portion of nozzle center's through hole is slick and sly taper, and back segment is cylindrical.
Advantage of the present utility model with beneficial effect is: compare with nozzle fitted outside hydraulic ejector, reduced assembly process, and be difficult for nozzle Ci is gone out in work progress.The leading portion of nozzle center's through hole is slick and sly taper, back segment is cylindrical, the discharge coefficient and the energy conversion efficiency of nozzle had both been improved, improved jet impact force again, applicable to straight well, horizontal well, inclined shaft or Φ 139.70mm, Φ 177.80mm size sleeve pipe, the oil recovery of barefoot completion, gas injection, water injection well single or multiple lift perforation, pressing crack construction, satisfy of the requirement of different wells to perforation diameter and quantity, pressing crack construction discharge capacity, formation fracture pressure.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further:
By accompanying drawing 1 as can be known, the utility model is made up of body 1, nozzle 2, is evenly equipped with the through hole of band tapering on the tube wall of body 1, nozzle 2 outer walls be designed to body 1 tube wall on the identical conical surface of through hole tapering, and be installed in its through hole.
On nozzle 2 outer walls, sealing ring 3 is installed.
The leading portion of nozzle 2 central through holes is slick and sly taper, and back segment is cylindrical, thereby has improved the discharge coefficient and the energy conversion efficiency of nozzle, has improved jet impact force again.
During use, the utility model is connected with running string, treats under the tubing string in the well that behind the construction location, the load fluid body can carry out hydraulic perforation, jetting fracturing work program by nozzle 2 high velocity jet.

Claims (3)

1. nozzle built-in type hydraulic ejector, form by body (1), nozzle (2), it is characterized in that: on the tube wall of body (1), be evenly equipped with the through hole of band tapering, nozzle (2) outer wall be designed to body (1) tube wall on the identical conical surface of through hole tapering, and be installed in its through hole.
2. nozzle built-in type hydraulic ejector according to claim 1 is characterized in that: on nozzle (2) outer wall sealing ring (3) is installed.
3. nozzle built-in type hydraulic ejector according to claim 1 and 2 is characterized in that: the leading portion of nozzle (2) central through hole is slick and sly taper, and back segment is cylindrical.
CN 201120078839 2011-03-23 2011-03-23 Nozzle-built-in hydraulic jet Expired - Lifetime CN201991503U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201120078839 CN201991503U (en) 2011-03-23 2011-03-23 Nozzle-built-in hydraulic jet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201120078839 CN201991503U (en) 2011-03-23 2011-03-23 Nozzle-built-in hydraulic jet

Publications (1)

Publication Number Publication Date
CN201991503U true CN201991503U (en) 2011-09-28

Family

ID=44667993

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201120078839 Expired - Lifetime CN201991503U (en) 2011-03-23 2011-03-23 Nozzle-built-in hydraulic jet

Country Status (1)

Country Link
CN (1) CN201991503U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109751030A (en) * 2017-11-02 2019-05-14 中国石油化工股份有限公司 Combined jet perforating system
CN111255425A (en) * 2018-11-30 2020-06-09 中国石油化工股份有限公司 Nozzle for hydraulic jet fracturing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109751030A (en) * 2017-11-02 2019-05-14 中国石油化工股份有限公司 Combined jet perforating system
CN111255425A (en) * 2018-11-30 2020-06-09 中国石油化工股份有限公司 Nozzle for hydraulic jet fracturing

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CX01 Expiry of patent term

Granted publication date: 20110928

CX01 Expiry of patent term