CN106567693A - Inner and outer blind hole blockage relieving composite perforator - Google Patents
Inner and outer blind hole blockage relieving composite perforator Download PDFInfo
- Publication number
- CN106567693A CN106567693A CN201610912561.8A CN201610912561A CN106567693A CN 106567693 A CN106567693 A CN 106567693A CN 201610912561 A CN201610912561 A CN 201610912561A CN 106567693 A CN106567693 A CN 106567693A
- Authority
- CN
- China
- Prior art keywords
- blind hole
- perforation
- perforator
- blockage relieving
- pipe
- 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.)
- Pending
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 26
- 230000020477 pH reduction Effects 0.000 claims abstract description 15
- 239000003814 drug Substances 0.000 claims description 16
- 230000000903 blocking effect Effects 0.000 claims description 14
- 238000010304 firing Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000035699 permeability Effects 0.000 description 6
- 239000002253 acid Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000002981 blocking agent Substances 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/11—Perforators; Permeators
- E21B43/116—Gun or shaped-charge perforators
- E21B43/117—Shaped-charge perforators
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/11—Perforators; Permeators
- E21B43/119—Details, e.g. for locating perforating place or direction
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/28—Dissolving minerals other than hydrocarbons, e.g. by an alkaline or acid leaching agent
- E21B43/283—Dissolving minerals other than hydrocarbons, e.g. by an alkaline or acid leaching agent in association with a fracturing process
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Medicinal Preparation (AREA)
Abstract
The invention discloses an inner and outer blind hole blockage relieving composite perforator and relates to the field of oil field development blockage relieving and perforating. The perforator comprises a perforator body, a bullet rack and acidification blockage relieving agent boxes. According to the inner and outer blind hole blockage relieving composite perforator, inner blind holes are formed in the portions, corresponding to perforation bullets, of the inner wall of the perforator body from the interior of a pipe to the exterior of the pipe, outer blind holes are formed in the portions, corresponding to the inner blind holes, of the pipe from the exterior of the pipe to the interior of the pipe, and the inner blind holes do not communicate with the outer blind holes, so that the problems that in the perforation operation process, an outer blind hole composite perforator is low in burst height, and an inner blind hole composite perforator is large in energy consumption, relatively many in burrs and easy to clamp are solved; and under the condition that pressure is allowable, the perforation thickness of the perforator body is relatively decreased, perforation energy consumption is reduced, the perforation effect can be further improved, and meanwhile, by loading the acidification blockage relieving boxes into the lower ends of the perforation bullets, acidification blockage relieving is conducted while perforation is achieved, the two passes of procedures of perforation and blockage relieving are completed through the one-time perforation procedure, and the production cost is reduced while the permeation of perforation channels is improved.
Description
Technical field
The present invention relates to oil field development de-plugging, perforation field, and in particular to be a kind of inside and outside blind hole de-plugging composite gun perforation
Device.
Background technology
Perforator is the equipment special of petroleum-gas fiedl perforation construction, and composite gun perforation is then can to effectively improve at this stage to penetrate
Hole quality, increases one of method of oil-producing, but composite gun perforation also there are problems that it is many.On the one hand, at present, common composite gun perforation
Device has outer blind hole composite perforating tool, interior blind hole composite perforating tool, and both composite perforators have deficiency in structure, outer blind
The perforating bullet height of burst of hole composite perforator is low, and jet is not fully pulled open and begins to brokenly target, and then reduces perforating effect, and interior blind
Hole composite perforator, although the height of burst for solving outer blind hole composite perforating tool affects, but broken target wall thickness of perforating bullet when wearing blind hole
It is thicker, the consumption of perforation energy is increased, perforating effect is affected, while after interior blind hole perforation, in the hair produced by gun body outer wall
Pierce of a relatively high, easy card rifle.On the other hand, for perforation, the principal element for affecting oil-producing is：Wear depth, channel diameter also
There is permeability, and conventional composite gun perforation can only solve to wear depth and channel diameter, but can't resolve due to drilling well, well cementation, perforation etc.
The impact to permeability is caused to the pollution on stratum produced by process.The conventional construction operation in oil field is all in perforating job
Afterwards, carrying out being acidified de-plugging pressure break, the nonrecurring charge of de-plugging pressure break is being acidified up to more than 150,000 yuan, therefore, oil field is badly in need of one
Plant to increase and wear depth and channel diameter, while and energy de-plugging improves the perforator of duct permeability.
The content of the invention
The purpose of the present invention is to provide a kind of inside and outside blind hole de-plugging composite perforator for the problems referred to above, on the one hand, passed through
To arranging inside and outside blind hole on body of perforating gun simultaneously, during solving perforating job, the outer blind hole composite perforating tool height of burst is low and interior
Blind hole composite perforating tool perforation energy expenditure is larger, burr is of a relatively high, the problem of easy card rifle, while the bar allowed in pressure
Under part, relatively reduce gun body is shot through thickness, reduces the loss of perforation energy, more can further improve perforating effect；Separately
On the one hand, by loading the medicine box equipped with acidification blocking remover in perforating bullet lower end, acidifying de-plugging is carried out while perforation, by one
Secondary perforation operation, completes perforation and de-plugging two procedures, that is, the permeability that improve perforation tunnel reduces production cost again.
The present invention is achieved through the following technical solutions：Inside and outside blind hole de-plugging composite perforator includes gun body, firing mount and acid
Neutralizing blocking agent medicine box；There are the interior blind hole outwards processed from inside tubing, interior blind hole in the inwall perforating bullet corresponding position of described gun body
Outer blind hole is internally machined with outside corresponding tubing, is not connected between interior blind hole, outer blind hole.
Remaining tube wall thickness between described interior blind hole, outer blind hole is 1.5 ~ 2.5 millimeters.
Described acidification blocking remover medicine box, installed in perforating bullet lower end, acidification blocking remover medicine box concrete shape is according to perforation
The model of bullet determines.
Using above-mentioned technical proposal and good effect：Interior blind hole, outer blind hole are set simultaneously in gun body in the present invention, in pressure
Under conditions of power is allowed, the tube wall thickness between inside and outside blind hole is relatively reduced, that is, is effectively increased the height of burst of perforating bullet,
The energy loss that perforating bullet is shot through wall thickness is reduced again, further increases the quality of perforation.
Load acidification blocking remover medicine box in perforating bullet lower end in the present invention, a certain amount of acidifying de-plugging is housed inside its medicine box
Agent, can produce the acidifying gas of high energy while perforation, and high temperature, the acidifying gas of high pressure pass through preforation tunnel in perforation moment
Acid fracturing is carried out to stratum, many cracks are formed, the blocking brought by perforation compaction band is further dredged, is played de-plugging and carry
The effect of high duct permeability.
Do not connect between blind hole, outer blind hole in the present invention, do not result in gun body seepage, it is ensured that production safety.
Because interior blind hole, outer blind hole occur simultaneously in the present invention, solve because after perforation in the burr produced by gun body outer wall
With respect to too high and problem of card rifle, the probability that security incident occurs is reduced.
The present invention can once save more than 150,000 yuan of acidifying de-plugging pressure break expense for oil field individual well.
The present invention reduces the construction operation input produced because of card rifle, more than 50,000 yuan every time.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
In figure：1 gun body, blind hole, 3 outer blind holes, 4 firing mounts, 5 perforating bullets, 6 acidification blocking remover medicine boxs in 2.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings：Blind hole de-plugging composite perforator bag inside and outside as shown in Figure 1
Include gun body 1, firing mount 4 and acidification blocking remover medicine box 6.Wherein 6 concrete shape of acidification blocking remover medicine box is true according to the model of perforating bullet 5
It is fixed, during use, need the medicine box 6 that will be equipped with acidification blocking remover to be arranged on 5 lower end of perforating bullet, the two is loaded in firing mount 4 together,
And primacord is wound, it is after the completion of loading required perforating bullet 5 and medicine box 6 shown in connection big gun figure, overall that firing mount 4 is loaded into rifle
In body 1, and blind hole 2 in each 5 lower end aligned of perforating bullet is made in the presence of alignment pin, as shown in Figure 1.
In actual production, pressure allow under conditions of, can by the tube wall thickness between interior blind hole 2, outer blind hole 3 be 1.5 ~
2.5 millimeters, that is, the height of burst of perforating bullet is increased, reduce the energy loss that perforating bullet is shot through wall thickness again, solve because after perforation
In the burr produced by gun body outer wall the is relatively too high problem of easy card rifle, the probability that security incident occurs is reduced.
In perforating job, 5 lower end of perforating bullet loads acidification blocking remover medicine box 6, and a certain amount of acid is housed inside its medicine box
Neutralizing blocking agent, can produce the acidifying gas of high energy while perforation, and high temperature, the acidifying gas of high pressure are in perforation moment by penetrating
Hole eyelet carries out acid fracturing to stratum, forms many cracks, further dredges the blocking brought by perforation compaction band, plays solution
Effect that is stifled and improving duct permeability.
Inside and outside this, blind hole de-plugging composite perforator is suitable for common cable type and pipe conveying type perforation, is also suitable for being combined
The perforations such as formula, double compound, orientation formulas.
Claims (3)
1. a kind of inside and outside blind hole de-plugging composite perforator includes gun body 1, firing mount 4 and acidification blocking remover medicine box 6, it is characterised in that：
There are the interior blind hole 2 outwards processed from inside tubing, 2 corresponding tubing of interior blind hole in the inwall perforating bullet corresponding position of described gun body 1
Outside is internally machined with outer blind hole 3, does not connect between interior blind hole 2, outer blind hole 3.
2. inside and outside blind hole de-plugging composite perforator according to claim 1, it is characterised in that：Interior blind hole 2, outer blind hole 3 it
Between remaining tube wall thickness be 1.5 ~ 2.5 millimeters.
3. inside and outside blind hole de-plugging composite perforator according to claim 1, it is characterised in that：Described acidification blocking remover medicine
Box 6, installed in 5 lower end of perforating bullet, 6 concrete shape of medicine box of acidification blocking remover is determined according to the model of perforating bullet 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610912561.8A CN106567693A (en) | 2016-10-20 | 2016-10-20 | Inner and outer blind hole blockage relieving composite perforator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610912561.8A CN106567693A (en) | 2016-10-20 | 2016-10-20 | Inner and outer blind hole blockage relieving composite perforator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106567693A true CN106567693A (en) | 2017-04-19 |
Family
ID=60414252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610912561.8A Pending CN106567693A (en) | 2016-10-20 | 2016-10-20 | Inner and outer blind hole blockage relieving composite perforator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106567693A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107542432A (en) * | 2017-09-04 | 2018-01-05 | 大庆红祥寓科技有限公司 | Firing angle effect-increasing perforator is determined in inside and outside blind hole orientation |
| CN112593903A (en) * | 2020-12-14 | 2021-04-02 | 大庆石油管理局有限公司 | Fixed-firing-angle inner blind hole perforating gun |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1147054A (en) * | 1995-10-04 | 1997-04-09 | 史慧生 | Well perforator and acidizing treatment device |
| CN201031673Y (en) * | 2007-04-20 | 2008-03-05 | 蓬莱市茂企石油机械有限公司 | Through-hole pressure relief hole type inner blind hole composite gun perforation gun |
| CN101148980A (en) * | 2006-09-21 | 2008-03-26 | 史慧生 | Perforation and acidification pressing crack combined device for oil well |
| CN101382060A (en) * | 2007-09-07 | 2009-03-11 | 普拉德研究及开发股份有限公司 | Shaped charge for acidizing treatment |
| CN201321849Y (en) * | 2008-11-14 | 2009-10-07 | 大庆油田有限责任公司 | Inner blind hole composite perforating gun |
| CN202202848U (en) * | 2011-09-13 | 2012-04-25 | 中国石油天然气集团公司 | Novel composite perforation gun for inner blind holes |
| CN202628048U (en) * | 2012-07-05 | 2012-12-26 | 大庆红祥寓科技有限公司 | Perforation gun with inner blind hole and outer blind hole |
| US20140053715A1 (en) * | 2011-12-15 | 2014-02-27 | Tong Petrotech Inc | Composite perforation device with scallops on the inner wall |
| CN104847315A (en) * | 2015-03-25 | 2015-08-19 | 大庆红祥寓科技有限公司 | Expansion composite perforating gun |
-
2016
- 2016-10-20 CN CN201610912561.8A patent/CN106567693A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1147054A (en) * | 1995-10-04 | 1997-04-09 | 史慧生 | Well perforator and acidizing treatment device |
| CN101148980A (en) * | 2006-09-21 | 2008-03-26 | 史慧生 | Perforation and acidification pressing crack combined device for oil well |
| CN201031673Y (en) * | 2007-04-20 | 2008-03-05 | 蓬莱市茂企石油机械有限公司 | Through-hole pressure relief hole type inner blind hole composite gun perforation gun |
| CN101382060A (en) * | 2007-09-07 | 2009-03-11 | 普拉德研究及开发股份有限公司 | Shaped charge for acidizing treatment |
| CN201321849Y (en) * | 2008-11-14 | 2009-10-07 | 大庆油田有限责任公司 | Inner blind hole composite perforating gun |
| CN202202848U (en) * | 2011-09-13 | 2012-04-25 | 中国石油天然气集团公司 | Novel composite perforation gun for inner blind holes |
| US20140053715A1 (en) * | 2011-12-15 | 2014-02-27 | Tong Petrotech Inc | Composite perforation device with scallops on the inner wall |
| CN202628048U (en) * | 2012-07-05 | 2012-12-26 | 大庆红祥寓科技有限公司 | Perforation gun with inner blind hole and outer blind hole |
| CN104847315A (en) * | 2015-03-25 | 2015-08-19 | 大庆红祥寓科技有限公司 | Expansion composite perforating gun |
Non-Patent Citations (1)
| Title |
|---|
| 中国石油天然气集团公司人事部 编: "《井下作业技师培训教程》", 31 December 2011, 石油工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107542432A (en) * | 2017-09-04 | 2018-01-05 | 大庆红祥寓科技有限公司 | Firing angle effect-increasing perforator is determined in inside and outside blind hole orientation |
| CN112593903A (en) * | 2020-12-14 | 2021-04-02 | 大庆石油管理局有限公司 | Fixed-firing-angle inner blind hole perforating gun |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170419 |