CN201531255U - High perforation density deep penetration perforator for oil and gas well - Google Patents
High perforation density deep penetration perforator for oil and gas well Download PDFInfo
- Publication number
- CN201531255U CN201531255U CN2009202434372U CN200920243437U CN201531255U CN 201531255 U CN201531255 U CN 201531255U CN 2009202434372 U CN2009202434372 U CN 2009202434372U CN 200920243437 U CN200920243437 U CN 200920243437U CN 201531255 U CN201531255 U CN 201531255U
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- oil
- gun barrel
- perforating
- hole
- perforator
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- 230000035515 penetration Effects 0.000 title claims abstract description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 20
- 241000209094 Oryza Species 0.000 description 12
- 235000007164 Oryza sativa Nutrition 0.000 description 12
- 235000009566 rice Nutrition 0.000 description 12
- 238000005065 mining Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 238000010304 firing Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
The utility model discloses a high perforation density deep penetration perforator for an oil and gas well, comprising a perforating gun, blind holes are arranged on a gun barrel of the perforating gun, 50 to 60 blind holes are distributed the gun barrel per meter, the external diameter of the gun barrel is 159 to 178 mm, the inner diameter is 133 to 155 mm. According to the utility model, the perforating depth is deep, the perforating aperture is larger, the perforation density is high, and the interference among the bullets can be avoided.
Description
Technical field
The utility model relates to the equipment of a kind of oil, natural gas exploration and mining operations, relates in particular to a kind of oil gas well with the close deep penetration perforator in high hole.
Background technology
In oil, natural gas exploration and mining operations, usually finish the process from the drilling well to the perforation completion in the following order: drilling well on the oil-containing block → sleeve pipe is put into well → with the annular space between concrete spouting sleeve pipe and the well (fixed sleeving) → perforating bullet is contained under the perforating gun to the oil-gas Layer position → jet that perforating bullet → perforating bullet of the calibration degree of depth → ignition perforating gun is exported penetrates sleeve pipe and layer of concrete successively, enter in the oil-gas Layer, between pit shaft and oil-gas Layer, form gas channel → oil gas and enter pit shaft by these passages.
At the initial stage of adopting perforating bullet perforation completion, Kong Mi is generally 16 hole/rice, afterwards along with the progress of oil exploitation technology, people recognize that close and penetration depth in perforation hole and piercing aperture play an important role to oil-gas mining, people also have higher requirement to oil exploitation efficient simultaneously, people's more perforator of Gao Kongmi that just begins one's study is progress from 16 hole/rice to 20 hole/rice so, has improved oil, gas extraction rate effectively.Yet from 20 hole/rice to 40 hole/rice, but passed through very long process, because, along with the close increase in perforator hole, perforating bullet is in the moment of blast perforating, the shock wave that one launch hole bullet of elder generation's blast is produced can impact the second launch hole bullet of after-explosion, and this influence is referred to as to disturb between bullet.Interference can cause the perforation of perforating bullet on gun barrel and sleeve pipe to become ellipse between bullet, and wears deeply and can reduce, and along with the increase of annoyance level between bullet, the piercing aperture of perforating bullet and penetration depth can descend by straight line, when serious, can't normally form jet.
For example, domestic existing 178 type perforators, have only a kind of by Kong Mifen: 40 holes/rice perforating bullet are divided into three kinds by punching quality: pure large aperture perforating bullet, deep penetrating charge, big diameter and deep penetrating perforating bumb.The piercing aperture of pure large aperture perforating bullet can reach Ф 25mm, but penetration depth has only about 150mm, and penetration depth is more shallow, and the single-shot pore volume is 0.0245cm3; The deep penetrating charge penetration depth can reach 800mm, but piercing aperture has only about Ф 9mm, and piercing aperture is less, and the single-shot pore volume is 0.0169cm3; The big diameter and deep penetrating perforating bumb has been taken into account the aperture and has been worn deeply, and piercing aperture can reach Ф 20.0mm, and penetration depth can reach 500mm, but Kong Mi is lower, and the single-shot pore volume is 0.0523cm3.Above-mentioned three kind of 178 type perforator all has its limitation, influenced the raising of oil gas well capacity.
In recent years, along with oil exploitation enters the middle and later periods, the oil and gas reserves on a lot of stratum is few, and formation pressure is low, oil ratio is thicker, the exploitation difficulty is bigger, and the formation sand production that has simultaneously is serious, therefore considers the resources effective exploitation, proposed water flooding recovery again and (beaten a bite well on the next door of oil-gas mining well, by water filling in well, increase strata pressure, thereby the oil-gas mining well on next door can be exploited smoothly) and the new perforating technology requirement of sand control perforation.New perforating technology is also more and more higher to the requirement of perforator, and existing perforator can not satisfy instructions for use.
The utility model content
The purpose of this utility model is to overcome the problems referred to above that existing perforator exists, and provides a kind of oil gas well with the close deep penetration perforator in high hole, and the utility model penetration depth is darker, and piercing aperture is bigger, and the hole of perforation is close higher, and can avoid disturbing between bullet.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of oil gas well is with the close deep penetration perforator in high hole, comprise perforating gun, it is characterized in that: the gun barrel of described perforating gun is provided with blind hole, is distributed with 50-60 blind hole on every meter gun barrel, the external diameter of gun barrel is Ф 159mm-Ф 178mm, and internal diameter is Ф 133mm-Ф 155mm.
The center to center distance of described adjacent two blind holes is 16.5mm-21mm, and the number of phases of blind hole is 18 phase places, and the phase angle is 130 °-150 °.
Described gun barrel is the gun barrel of chromansil structural iron.
Adopt advantage of the present utility model to be:
One, in the utility model, the gun barrel of perforating gun is provided with blind hole, is distributed with 50-60 blind hole on every meter gun barrel, the external diameter of gun barrel is Ф 159mm-Ф 178mm, adopts this structure penetration depth darker, and piercing aperture is bigger, the hole of perforation is close higher, and can avoid disturbing between bullet.
Two, in the utility model, the center to center distance of adjacent two blind holes is 16.5mm-21mm, and the number of phases of blind hole is 18 phase places, and the phase angle is 130 °-150 °, for perforating bullet has been created the big as far as possible height of burst, thereby has improved wearing deeply of perforating bullet.
Three, in the utility model, gun barrel is the gun barrel of chromansil structural iron, has guaranteed gun barrel intensity in use.
Four, compare with existing 40 holes/rice 178 type perforators, the utility model is improved to 60 hole/rice from 40 hole/rice, and adopting the external diameter of gun barrel is Ф 159mm-Ф 178mm, internal diameter is Ф 133mm-Ф 155mm, by increasing the quantity of blind hole, not only guaranteed penetration depth, piercing aperture and Kong Mi, also solved the problem of disturbing between bullet, the perforation of perforating bullet on gun barrel and sleeve pipe can not become ellipse, and wear deeply not only and do not reduce, be improved on the contrary, thereby, the utility model is not simply Kong Mi to be improved to 60 hole/rice by 40 hole/rice, is on the basis of 40 holes/rice 178 type perforators, to draw through creative work, and be non-obvious with respect to those skilled in the art.
Description of drawings
The structural representation that Fig. 1 is provided with on gun barrel for the utility model blind hole
Fig. 2 adopts the schematic diagram of 18 PHASE DISTRIBUTION for the utility model blind hole
Be labeled as among the figure: 1, gun barrel, 2, blind hole.
The specific embodiment
A kind of oil gas well comprises perforating gun with the close deep penetration perforator in high hole, and the gun barrel 1 of perforating gun is provided with blind hole 2, is distributed with 50-60 blind hole on every meter gun barrel, and the external diameter of gun barrel 1 is Ф 159mm-Ф 178mm, and internal diameter is Ф 133mm-Ф 155mm.
In the utility model, the center to center distance of adjacent two blind holes is 16.5mm-21mm, and the number of phases of blind hole 2 is 18 phase places, and the phase angle is 130 °-150 °.In addition, gun barrel 1 is the gun barrel of chromansil structural iron.
The course of work of the present utility model is as follows:
When carrying out the oil well perforation operation, earlier with the detonating fuse in the perforator from axially passing firing mount, perforating bullet with perforator is fixed on shooting in the hole of firing mount successively again, make detonating fuse pass through the mounting groove of perforating bullet small end, and detonating fuse is compressed with the bullet card, then firing mount is packed into and forms perforator in the perforating gun, at last will perforator down to the oil reservoir position of sleeve pipe.After degree of depth calibration, ignite detonating fuse, detonating fuse is ignited perforating bullet more successively, perforating bullet output energy-gathering jetting is with sleeve pipe, layer of concrete and oily rock stratum pinhole making, and the oil gas passing hole channel is pooled in the sleeve pipe, and final (gas) facility that recovers the oil of using imports oil transportation (gas) pipeline with oil (gas).
Obviously; those of ordinary skill in the art is according to technological know-how of being grasped and customary means; according to above said content, can also make the various ways that does not break away from the utility model basic technical scheme, these pro forma conversion are all within protection domain of the present utility model.
Claims (3)
1. an oil gas well is with the close deep penetration perforator in high hole, comprise perforating gun, it is characterized in that: the gun barrel of described perforating gun (1) is provided with blind hole (2), be distributed with 50-60 blind hole (2) on every meter gun barrel, the external diameter of gun barrel (1) is Ф 159mm-Ф 178mm, and internal diameter is Ф 133mm-Ф 155mm.
2. oil gas well according to claim 1 is with the close deep penetration perforator in high hole, and it is characterized in that: the center to center distance of described adjacent two blind holes is 16.5mm-21mm, and the number of phases of blind hole (2) is 18 phase places, and the phase angle is 130 °-150 °.
3. oil gas well according to claim 1 and 2 is with the close deep penetration perforator in high hole, and it is characterized in that: described gun barrel (1) is the gun barrel of chromansil structural iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202434372U CN201531255U (en) | 2009-11-24 | 2009-11-24 | High perforation density deep penetration perforator for oil and gas well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202434372U CN201531255U (en) | 2009-11-24 | 2009-11-24 | High perforation density deep penetration perforator for oil and gas well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201531255U true CN201531255U (en) | 2010-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202434372U Expired - Lifetime CN201531255U (en) | 2009-11-24 | 2009-11-24 | High perforation density deep penetration perforator for oil and gas well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201531255U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939062A (en) * | 2014-04-02 | 2014-07-23 | 中国石油化工集团公司 | Method for selecting phase angle of directional-well open hole perforation |
-
2009
- 2009-11-24 CN CN2009202434372U patent/CN201531255U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939062A (en) * | 2014-04-02 | 2014-07-23 | 中国石油化工集团公司 | Method for selecting phase angle of directional-well open hole perforation |
| CN103939062B (en) * | 2014-04-02 | 2016-05-25 | 中国石油化工集团公司 | The phase angle system of selection of directional well open-hole shooting eyelet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160708 Address after: 646605 Luzhou City, Sichuan province Longmatan District Road No. 010220 dam space Patentee after: Sky Energy Science Co., Ltd of river South Airways Address before: 646003 box four, Luzhou, Sichuan Patentee before: Chuannan Machinery Works, China Astronautics Science &. Technology Group Corp. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100721 |
|
| CX01 | Expiry of patent term |