CN201924901U - Super-deep penetration perforation charge - Google Patents
Super-deep penetration perforation charge Download PDFInfo
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- CN201924901U CN201924901U CN2011200181969U CN201120018196U CN201924901U CN 201924901 U CN201924901 U CN 201924901U CN 2011200181969 U CN2011200181969 U CN 2011200181969U CN 201120018196 U CN201120018196 U CN 201120018196U CN 201924901 U CN201924901 U CN 201924901U
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- cavity liner
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Abstract
A super-deep penetration perforation charge relates to the technical field of perforation charges for stimulation treatment in oil exploration and development. A shaped charge cover structure and a charging structure are optimized, the super-deep penetration perforation charge comprises a shaped charge cover and a metal charge case; the outer wall surface and the inner wall surface of the shaped charge cover are respectively shaped into an upper section, a middle section and a lower section which are in a smooth connection without joints; and the inner wall surface of the metal charge case is divided into four sections from bottom to top. The super-deep penetration perforation charge with fine stability is capable of lengthening metal jet flow and has the advantages of improvement of the penetration capacity of the metal jet flow and achievement of the best penetration effect.
Description
Technical field:
A kind of special deep penetrating charge is used for the perforating job of natural petroleum gas field process, relates to design, the manufacturing technology field of the perforating bullet of well stimulation in the petroleum exploration and development.
Background technology:
After oil or natural gas well drilling well are finished, will implement the construction operation of completion yield-increasing technology, in the oil gas well of perforation completion, preforation tunnel is unique passage of linking up payzone and pit shaft, therefore, penetration depth and the entrance hole diameter on sleeve pipe of perforating bullet in the rock stratum is two important indicators estimating the perforating bullet punching quality, it also is the key factor that influences the oil gas well capacity, facts have proved, improve the penetration depth of perforating bullet, make the perforation tunnel can pass drilling damage zone, to reducing the fracture pressure of fracture acidizing, with the effect of increasing production that improves fracture acidizing, and then be useful to the volume increase of oil gas well.
The prior art situation is: 2009 years announced the perforating bullet testing result according to domestic authoritative testing agency, the assembling external diameter is
The perforating bullet of perforating gun on average wearing on API standard concrete target is 589mm deeply, and the assembling external diameter is
The perforating bullet of perforating gun on average wearing on API standard concrete target is 695mm deeply, and the assembling external diameter is
The perforating bullet of perforating gun on average wearing on API standard concrete target is 835mm deeply, the perforating bullet of technology all can not reach 1000mm at present, main cause is: the cavity liner that deep penetrating charge is commonly used is a varying wall thick taper shape structure at present, under the perforating bullet explosive payload condition of regulation, usually adopt to increase the cavity liner bore or reduce top angle of taper size and improve penetration depth, in order to increase the bore of perforating bullet cavity liner, the pressure of compacting cavity liner needs to increase, for satisfying the pressure needs, often need to increase the rated pressure of press, can increase the equipment investment expense like this; The cone angle at cavity liner top has reduced, and will make the penetration depth of perforating bullet become unstable, therefore still can not reach best effect of increasing production.
The utility model content:
The utility model is optimized design at the shortcoming of prior art to cavity liner structure and charge constitution, makes full use of the explosive charge energy, and a kind of special deep penetrating charge is provided.
The utility model is achieved in that the utility model comprises cavity liner and metal bullet case, it is characterized in that: the cover of outside top 1 is convex structure in the described cavity liner, the outside wall surface 8 of cavity liner is divided into three sections of upper, middle and lower, upper and lower two sections is axial last taper seat 6 and axial following taper seat 9, interlude is axial arc surface 7, and upper, middle and lower are the smooth connection of contactless for three sections;
The internal face 4 of described cavity liner is divided into three sections of upper, middle and lower, and epimere is axial taper seat 2, and hypomere is the curved-surface structure 5 that exponential equation is determined, interlude is axial arc surface 3, the three sections smooth connections of contactless in upper, middle and lower;
The internal face of described metal bullet case 12 is divided into four sections from down to up, and first section is cylindrical cavity, and second section, the 3rd section, the 4th section is the truncated cone-shaped chamber;
The described axial conical surface angle that goes up taper seat 6 is between 42 °～55 °, and the axial conical surface angle of following taper seat 9 is between 45 °～60 °;
The angle of the axial taper seat 2 of described internal face 4 epimeres than taper seat on the outside wall surface 86 little 0 °～3 °;
The angular range in 12 second sections truncated cone-shaped chambeies of described metal bullet case is between 25 °～35 °, and the angular range in the 3rd section truncated cone-shaped chamber is between 50 °～65 °, and the angular range in the 4th section truncated cone-shaped chamber is between 110 °～125 °;
Be powder charge chamber 11 between the outside wall surface 8 of described cavity liner and the inwall of metal bullet case 12, be filled with high explosive in the powder charge chamber 11;
During manufacturing, installation mold on press is suppressed cavity liner with the metal powder material that has mixed more earlier, and the cavity liner of compacting press-fits operation through delivering to perforating bullet after the assay was approved; Will be weighing accurately the shot high explosive pour in the metal bullet case 12, use and press bullet equipment that cavity liner is pressed in the metal bullet case 12, finish the manufacturing of perforating bullet.
The beneficial effects of the utility model and advantage: the metal bullet case 12 internal face curvilinear structures that adopt cavity liner structure described in the utility model and match, make the distribution of explosive in the powder charge chamber more reasonable, improved the utilization rate of explosion energy, can reach best explosion energy output effect, therefore, under the effect of detonation wave, has good and compact stability, and metal jet can be drawn very long, and help improving the penetration ability of metal jet, bring into play best penetration effect; The perforating bullet that adopts the utility model to make, after testing, the penetration depth on API standard concrete target reaches more than the 1433mm, adopts
On average wear the deeply more domestic of the same type perforating bullet product penetration depth of perforating gun on API standard concrete target improved more than 60%, adopts
On average wear the deeply more domestic of the same type perforating bullet average penetration depth of perforating gun on API standard concrete target improved 79%.
Description of drawings:
Fig. 1 is the structure for amplifying schematic diagram of the utility model cavity liner.
Fig. 2 is the structural representation after the utility model cavity liner and the metal bullet case assembling.
The specific embodiment:
Provide embodiment of the present utility model below in conjunction with accompanying drawing:
Embodiment 1:
The utility model is made up of following structure: the utility model comprises cavity liner and metal bullet case, the structure on the interior outer mask top 1 of cavity liner is identical, be convex structure, the outside wall surface 8 of cavity liner is divided into three sections of upper, middle and lower, upper and lower two sections is to go up taper seat 6 and following taper seat 9, and the axial conical surface angle of last taper seat 6 is between 42 °～55 °, and the axial conical surface angle of following taper seat 9 is between 45 °～60 °, the centre is an arc surface 7, the three sections smooth connections of contactless in upper, middle and lower; The internal face 4 of cavity liner is divided into three sections of upper, middle and lower, epimere is axial taper seat 2, the angle of its axial taper seat than taper seat on the outside wall surface 86 little 0 °～3 °, hypomere is the curved-surface structure 5 that exponential equation is determined, interlude is an arc surface 3, the three sections smooth connections of contactless in upper, middle and lower; The internal face of metal bullet case 12 is divided into four sections from down to up, and first section is cylindrical cavity, and second section, the 3rd section, the 4th section is the truncated cone-shaped chamber; The angular range in second section truncated cone-shaped chamber is between 25 °～35 °, and the angular range in the 3rd section truncated cone-shaped chamber is between 50 °～65 °, and the angular range in the 4th section truncated cone-shaped chamber is between 110 °～125 °; Be powder charge chamber 11 between the outside wall surface 8 of cavity liner and the inwall of metal bullet case 12, be filled with high explosive in the powder charge chamber 11.
Embodiment 2: during manufacturing,, the mould that meets cavity liner designing requirement shape and angle is installed on press then earlier according to the designing requirement mfg. moulding die, install mould after, the metal powder material that has mixed is packed in the mould, directly suppress cavity liner then; The cover top 1 of the cavity liner of compacting, outside wall surface 8 and internal face 4 are answered satisfactory shape and angle, test then, qualified cavity liner is delivered to perforating bullet press-fit operation, again will be weighing accurately the shot high explosive pour in the metal bullet case 12, re-use and press bullet equipment cavity liner to be pressed into the manufacturing of just having finished perforating bullet in the metal bullet case 12.
Embodiment 3: will make good the utility model and carry out The field; Certain well pearl dashes layer and once adopted conventional deep penetrating charge to carry out perforating job, fails to add acid behind perforation, and operation effectiveness is undesirable; Adopt the originally practical perforating job once more of newly carrying out in the identical layer position of this well, the utility model is installed on the firing mount of external diameter Φ 76mm, with silk pressing 10 detonating fuse is fixed on the perforating bullet afterbody, after installing, with perforating bullet and the firing mount external diameter of packing into is in the perforating gun of Φ 127mm, and load onto rifle head, rifle layer, be assembled into perforator; Send into perforator in the well with oil pipe again and be positioned at this layer and carry out perforating job, well head is pressurized to rated value, priming device detonates and detonating fuse is ignited, by fuse arming test experiment initiation the utility model, after the utility model blast, the metal jet that forms passes perforating gun, sleeve pipe, cementing concrete ring successively and enters the rock stratum, finally forms the perforation duct in sleeve pipe, cement sheath, rock stratum; Carry out the fracture acidizing operation behind the perforation immediately, in the stratum, inject sour 143.8m altogether
3, behind the perforation, survey product through liquid device eliminator with D50.8mm flow meter 9mm orifice plate, get a day producing natural gas 4.070 * 10
4m
3/ d, effect of increasing production is obvious.
Claims (5)
1. a special deep penetrating charge comprises cavity liner and metal bullet case, it is characterized in that:
A. the cover of outside top (1) is a convex structure in the described cavity liner, the outside wall surface of cavity liner (8) is divided into three sections of upper, middle and lower, upper and lower two sections is axial last taper seat (6) and axial following taper seat (9), interlude is axial arc surface (7), and upper, middle and lower are the smooth connection of contactless for three sections;
B. the internal face of described cavity liner (4) is divided into three sections of upper, middle and lower, and epimere is axial taper seat (2), and hypomere is the curved-surface structure (5) that exponential equation is determined, interlude is axial arc surface (3), the three sections smooth connections of contactless in upper, middle and lower;
The internal face of c. described metal bullet case (12) is divided into four sections from down to up, and first section is cylindrical cavity, and second section, the 3rd section, the 4th section is the truncated cone-shaped chamber.
2. special deep penetrating charge according to claim 1 is characterized in that: the described axial conical surface angle that goes up taper seat (6) is between 42 °～55 °, and the axial conical surface angle of following taper seat (9) is between 45 °～60 °.
3. special deep penetrating charge according to claim 1 is characterized in that: the angle of the axial taper seat (2) of described internal face (4) epimere than the last taper seat (6) of outside wall surface (8) little 0 °～3 °.
4. special deep penetrating charge according to claim 1, it is characterized in that: the angular range in (12) second sections truncated cone-shaped chambeies of described metal bullet case is between 25 °～35 °, the angular range in the 3rd section truncated cone-shaped chamber is between 50 °～65 °, and the angular range in the 4th section truncated cone-shaped chamber is between 110 °～125 °.
5. special deep penetrating charge according to claim 1 is characterized in that: be powder charge chamber (11) between the inwall of outside wall surface of described cavity liner (8) and metal bullet case (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200181969U CN201924901U (en) | 2011-01-20 | 2011-01-20 | Super-deep penetration perforation charge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200181969U CN201924901U (en) | 2011-01-20 | 2011-01-20 | Super-deep penetration perforation charge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201924901U true CN201924901U (en) | 2011-08-10 |
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ID=44428759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200181969U Expired - Fee Related CN201924901U (en) | 2011-01-20 | 2011-01-20 | Super-deep penetration perforation charge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201924901U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041986A (en) * | 2011-01-20 | 2011-05-04 | 中国石油集团川庆钻探工程有限公司测井公司 | Special deep penetrating charge |
| CN115127414A (en) * | 2022-07-19 | 2022-09-30 | 中国人民解放军陆军工程大学 | Blasting perforation device based on rod jet flow and explosive forming shot |
-
2011
- 2011-01-20 CN CN2011200181969U patent/CN201924901U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041986A (en) * | 2011-01-20 | 2011-05-04 | 中国石油集团川庆钻探工程有限公司测井公司 | Special deep penetrating charge |
| CN115127414A (en) * | 2022-07-19 | 2022-09-30 | 中国人民解放军陆军工程大学 | Blasting perforation device based on rod jet flow and explosive forming shot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20180120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |