CN209179739U - A kind of horizontal well oriented perforating device - Google Patents
A kind of horizontal well oriented perforating device Download PDFInfo
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- CN209179739U CN209179739U CN201821724457.7U CN201821724457U CN209179739U CN 209179739 U CN209179739 U CN 209179739U CN 201821724457 U CN201821724457 U CN 201821724457U CN 209179739 U CN209179739 U CN 209179739U
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Abstract
The utility model provides a kind of horizontal well oriented perforating device, belongs to the technical field of Coal Exploration exploitation, which includes the body of a gun, connector and firing mount, mistake core propagation of explosion axis, bearing and counterweight in the body of a gun and connector；The body of a gun, connector, firing mount and core propagation of explosion axis excessively are hollow tubular structure；Internal screw thread is provided on the inner wall at the both ends of the body of a gun；The external screw thread with screw-internal thread fit is provided on the outer wall of connector；The both ends of firing mount are equipped with positioning ring；It crosses core propagation of explosion axis to be mounted on positioning ring, and axis is overlapped with the axis of firing mount；Bearing is resisted against outside positioning ring, and outer ring is fixed on the inner wall of connector, and inner ring fixation was set on core propagation of explosion axis；Counterweight was mounted on core propagation of explosion axis, was located at outside bearing, the line of two counterweight centers of gravity is not overlapped with the axis of firing mount.The device realizes the accurate positionin of horizontal direction using principle is laid particular stress on, and injects target reservoir to guarantee that perforation resilience energy is more acurrate.
Description
Technical field
The utility model relates to the technical fields of Coal Exploration exploitation, fill more particularly to a kind of horizontal well oriented perforating
It sets.
Background technique
It is generally that shale gas, coal bed gas and extra-low permeability densification oil-gas reservoir is referred to as unconventional in oil gas and coal exploitation
Oil-gas reservoir, the permeability of this kind of oil and gas reservoir is generally all extremely low, is difficult to exploit using the technical measures of conventional oil gas field development.Mesh
Preceding most common method both at home and abroad is that segmentation hydraulic fracturing (or volume fracturing) is carried out after using horizontal well drilling and perforation
Industrial production capacity can be obtained.It is to develop untraditional reservoir institute both at home and abroad at present that horizontal well fracturing, which pumps optional launch hole technology,
The main perforating technology used.Perforating job often requires that perforation direction will be split with pressure break when cooperating hydraulic fracturing
Seam moves towards consistent, not only can improve pressure break efficiency, while can control the extending direction with induced fractures crack,
It avoids causing seam net system perfecting degree poor due to string layer and crack intersect, finally improves reservoir productivity.In general, in level
In well staged fracturing, the degree of perfection of seam net system determines whether maximum drainage area can be obtained in reservoir, and stores up
The degree of perfection for moving towards opposite joint net system in layer crack influences very big.Thus, before horizontal well in segments hydraulic fracturing process
The perforating technology of sequence operation just must be able to implement oriented perforating operation to reservoir, could provide satisfaction for hydraulic fracturing process and want
The crack asked.The orientation of perforated interval reservoir can show that perforating system perforation ejects orientation and can mention in factory according to log data
Before process, still, behind perforating system tripping in stratum, because perforating system rotates in casing, not can guarantee perforating bullet and inject desire
The reservoir penetrated.
Utility model content
The purpose of this utility model is to provide a kind of horizontal well oriented perforating devices, realize level side using principle is laid particular stress on
To accurate positionin, inject target reservoir to guarantee that perforation resilience energy is more acurrate.
To achieve the above object, the utility model provides a kind of horizontal well oriented perforating device, including the body of a gun, connector and
Firing mount, mistake core propagation of explosion axis, bearing and counterweight in the body of a gun and connector；It the body of a gun, connector, firing mount and crosses during core propagation of explosion axis is
Empty tubular structure；Internal screw thread is provided on the inner wall at the both ends of the body of a gun；It is provided on the outer wall of connector and screw-internal thread fit
External screw thread；The both ends of firing mount are equipped with positioning ring；It crosses core propagation of explosion axis to be mounted on positioning ring, and the axis weight of axis and firing mount
It closes；Bearing is resisted against outside positioning ring, and outer ring is fixed on the inner wall of connector, and inner ring fixation was set on core propagation of explosion axis；Counterweight
It was mounted on core propagation of explosion axis, was located at outside bearing, the line of two counterweight centers of gravity is not overlapped with the axis of firing mount.
Further, positioning ring is mounted on the both ends of firing mount by screw.
Further, it crosses core propagation of explosion axle sleeve to be located in positioning ring, be connected by screw to.
Further, counterweight was mounted on core propagation of explosion axis by screw.
Further, it is provided with the first through hole chamber for accommodating core propagation of explosion axis, bearing and counterweight in connector and accommodates external
Second via cavities of device end；The inner wall of first through hole chamber towards the end face of the body of a gun is provided with bearing installation annular groove.
The beneficial effects of the utility model are:
Horizontal well oriented perforating device provided by the utility model, crossing on core propagation of explosion axis for firing mount two sides are respectively provided with counterweight,
Before not going into the well, firing mount keeps design position under the gravity of counterweight, behind perforating system tripping in stratum, even if perforating system exists
Rotation, firing mount also can go to design position in the gravity backspin of counterweight, guarantee the reservoir that perforating bullet injects in casing.
Two counterweights are set, and controllability is bigger, and the accuracy of positioning is higher.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of horizontal well oriented perforating device provided by the embodiment of the utility model；
Fig. 2 is firing mount in horizontal well oriented perforating device shown in Fig. 1, the installation diagram for crossing core propagation of explosion axis, bearing and counterweight.
In figure: the 1- body of a gun；2- connector；2.1- first through hole chamber；The second via cavities of 2.2-；3- firing mount；4- crosses core propagation of explosion axis；
5- bearing；6- counterweight；7- positioning ring.
Specific embodiment
The present embodiment provides a kind of horizontal well oriented perforating device, including the body of a gun 1, connector 2 and it is located at the body of a gun 1 and connector
Firing mount 3, mistake core propagation of explosion axis 4, bearing 5 and counterweight 6 in 2；The body of a gun 1, connector 2, firing mount 3 and core propagation of explosion axis 4 excessively are hollow
Tubular structure；Internal screw thread is provided on the inner wall at the both ends of the body of a gun 1；It is provided on the outer wall of connector 2 outer with screw-internal thread fit
Screw thread and the body of a gun 1 are threadedly coupled；The both ends of firing mount 3 are equipped with positioning ring 7；It crosses core propagation of explosion axis 4 to be mounted on positioning ring 7, and axis
Line is overlapped with the axis of firing mount 3；Bearing 5 is resisted against outside positioning ring 7, and positioning ring 7 applies axial force to bearing 5, prevents bearing 5 from existing
Axial float occurs in rotation process, outer ring is fixed on the inner wall of connector 1, and inner ring fixation was set on core propagation of explosion axis 4；Match
It weighs 6 to be mounted on core propagation of explosion axis 4, be located at outside bearing 5, the line of two 6 centers of gravity of counterweight is not overlapped with the axis of firing mount 3.
Above-mentioned horizontal well oriented perforating device, crossing on core propagation of explosion axis 4 for 3 two sides of firing mount is respectively provided with counterweight 6, before not going into the well,
Firing mount 3 keeps design position under the gravity of counterweight 6, behind perforating system tripping in stratum, even if perforating system is in casing
Rotation, firing mount 3 also can go to design position in the gravity backspin of counterweight 6, guarantee the reservoir that perforating bullet injects.Setting
Two counterweights 6, controllability is bigger, and the accuracy of positioning is higher.
Further, positioning ring 7 is mounted on the both ends of firing mount 3 by screw, in order to install or remove.
Further, it crosses core propagation of explosion axis 4 to be set in positioning ring 7, be connected by screw to, in order to install or remove.
Further, counterweight 6 was mounted on core propagation of explosion axis 4 by screw, in order to install or remove.
Further, it is provided with the first through hole chamber 2.1 for accommodating core propagation of explosion axis 4, bearing 5 and counterweight 6 in connector 2 and holds
Receive the second via cavities 2.2 of external device end；The inner wall of first through hole chamber 2.1 towards the end face of the body of a gun 1 is provided with bearing peace
Annular groove is filled, in order to install bearing 5.
The above is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all utilizations
Equivalent structure or equivalent flow shift made by the utility model description is applied directly or indirectly in other relevant
Technical field is also included in the patent protection scope of the utility model.
Claims (5)
1. a kind of horizontal well oriented perforating device, which is characterized in that including the body of a gun, connector and the bullet in the body of a gun and connector
Frame crosses core propagation of explosion axis, bearing and counterweight；
The body of a gun, connector, firing mount and core propagation of explosion axis excessively are hollow tubular structure；
Internal screw thread is provided on the inner wall at the both ends of the body of a gun；
The external screw thread with screw-internal thread fit is provided on the outer wall of the connector；
The both ends of the firing mount are equipped with positioning ring；
The core propagation of explosion axis of crossing is mounted on positioning ring, and axis is overlapped with the axis of firing mount；
The bearing is resisted against outside positioning ring, and outer ring is fixed on the inner wall of connector, and inner ring fixation was set on core propagation of explosion axis；
The counterweight was mounted on core propagation of explosion axis, was located at outside bearing, and the line of two counterweight centers of gravity and the axis of firing mount do not weigh
It closes.
2. horizontal well oriented perforating device according to claim 1, which is characterized in that the positioning ring is installed by screw
At the both ends of firing mount.
3. horizontal well oriented perforating device according to claim 1, which is characterized in that it is fixed that the core propagation of explosion axle sleeve excessively is located at
In the ring of position, it is connected by screw to.
4. horizontal well oriented perforating device according to claim 1 or 3, which is characterized in that the counterweight is pacified by screw
It was mounted on core propagation of explosion axis.
5. horizontal well oriented perforating device according to claim 1, which is characterized in that be provided with and accommodated in the connector
Second via cavities of core propagation of explosion axis, the first through hole chamber of bearing and counterweight and receiving external device end；
The inner wall of end face of the first through hole chamber towards the body of a gun is provided with bearing installation annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821724457.7U CN209179739U (en) | 2018-10-24 | 2018-10-24 | A kind of horizontal well oriented perforating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821724457.7U CN209179739U (en) | 2018-10-24 | 2018-10-24 | A kind of horizontal well oriented perforating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209179739U true CN209179739U (en) | 2019-07-30 |
Family
ID=67361910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821724457.7U Active CN209179739U (en) | 2018-10-24 | 2018-10-24 | A kind of horizontal well oriented perforating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209179739U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022146454A1 (en) * | 2020-12-31 | 2022-07-07 | Halliburton Energy Services, Inc. | Adjustable perforating gun orientation system |
-
2018
- 2018-10-24 CN CN201821724457.7U patent/CN209179739U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022146454A1 (en) * | 2020-12-31 | 2022-07-07 | Halliburton Energy Services, Inc. | Adjustable perforating gun orientation system |
| US11391127B1 (en) | 2020-12-31 | 2022-07-19 | Halliburton Energy Services, Inc. | Adjustable perforating gun orientation system |
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