CN2557693Y - Gas combustion ultra-positive pressure perforating device - Google Patents
Gas combustion ultra-positive pressure perforating device Download PDFInfo
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- CN2557693Y CN2557693Y CN 02240182 CN02240182U CN2557693Y CN 2557693 Y CN2557693 Y CN 2557693Y CN 02240182 CN02240182 CN 02240182 CN 02240182 U CN02240182 U CN 02240182U CN 2557693 Y CN2557693 Y CN 2557693Y
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- positive pressure
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- perforation
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Abstract
Disclosed is a fuel super-positive pressure perforation generating device, belonging to the technology to increase production of oil field development and stratum transformation. The utility model comprises an impact lighter1, high-energy combustible2, a delay initiator3, a perforating gun4 and a fracture bomb5, wherein the impact lighter1 is arranged at the upper part of the high-energy combustible2 and the delay initiator3 is arranged at the lower part of the high-energy combustible2; the fracture bomb5 is arranged at the lower part of the perforating gun4. The utility model can realize super-positive pressure perforating and sewing the crack of the stratum, reaching the purpose of increasing production. The utility model has the advantages that the utility model is easy to use in field construction operation, easy to transport with low cost; the utility model is safe and reliable and the utilization rate of energy is high.
Description
Affiliated technical field:
The utility model belongs to oil field development, the class yield-increasing technology is transformed on the stratum, specifically, and combustion type ultra-positive pressure perforation generating means.
Background technology:
Play external employing surface pump pressurization in 90 years, inject N respectively
2, acid solution or active liquid, produce high pressure (generally being higher than formation fracture pressure) back perforation, this perforation mode is referred to as the ultra-positive pressure perforation.Yet this perforation requires ground installation, vehicle more, and it is big that technical matters is implemented difficulty, and the activity duration is long and expense is also expensive.Domestic existing perforation---high energy gas composite fracturing stimulation work technology is applied in oil field development, stratum transformation, as patent " perforation---high energy gas fracturing device (patent No. ZL962 2295.4) "
(1), combined apparatus for perforation fracturing (patent No. ZL98 2 07782.3) "
(2), all be pressing mode again behind the perforation, powder volume is few, can not make full use of the energy that gunpowder produces.
N is injected in existing employing surface pump pressurization respectively
2, acid solution or active liquid, produce the ultra-positive pressure perforation mode of high pressure (generally being higher than formation fracture pressure) back perforation, require ground installation, vehicle more, it is big that technical matters is implemented difficulty, the activity duration is long and expense is also expensive; Existing perforation---pressure break multiple working mode all is a pressing mode again behind the perforation, can not make full use of the energy that gunpowder produces.
Technology contents
The purpose of this utility model be with a kind of be easy to the site operation operation, be easy to transport, safe and reliable, expense is lower, directly is loaded on the combustion type ultra-positive pressure perforation generating means that has the perforating gun that unloads pore.
The utility model is achieved in that and comprises impacting type igniter 1, high energy combustible 2, delay initiator 3, perforating gun 4, Pressure breaking bullet 5, impacting type igniter 1 is arranged at the top of high energy combustible 2, delay initiator 3 is arranged at the bottom of high energy combustible 2, and Pressure breaking bullet 5 is arranged at the bottom of perforating gun 4.
The utility model also adopts following technical scheme:
High energy combustible 2 can be a gunpowder, also can be propellant.
Perforating gun 4 has and unloads pore.
High energy combustible 2 is loaded on unloading in the pore of perforating gun 4.
Advantage of the present utility model is: for be installed in the flammable powder burning of the column that has in the perforating gun that unloads pore always, form high pressure at target zone, perforation is a kind of form of " perforation after the first pressure break " then, also is referred to as " the overvoltage perforation extends fast ".The high pressure that produces in pit shaft during powder burning is greater than the fracture pressure on stratum, scope is controlled at 1.2～1.5 times of fracture pressure on stratum, realized the ultra-positive pressure perforation and formation breakdown has been made seam, reach the purpose of volume increase, have again be easy to the site operation operation, be easy to transport, safe and reliable, expense is cheap, and energy utilizes characteristics such as height.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Concrete enforcement
Impacting type igniter as shown in drawings, 1; 2, high energy combustible material (gunpowder or propellant); 3. delay initiator; 4, perforating gun; 5, Pressure breaking bullet.During oil well perforation, the utility model is pressed accompanying drawing to be installed, caber bump impacting type igniter 1, igniter 1 is lighted high energy combustible 2 (gunpowder or propellant) and is burnt and produces high pressure greater than the fracture pressure on stratum, reach the pressure of reservation when pressure after, the delay initiator 3 perforating bullet perforation in the perforating gun 4 that begins to detonate, 5 Pressure breaking bullets that ignite simultaneously continue to produce high pressure preforation tunnel are carried out the connected sum extension, formation breakdown is made seam, improve in-place permeability, increase oil and gas production.
Claims (4)
1. combustion type ultra-positive pressure perforation generating means, comprise impacting type igniter (1), high energy combustible (2), delay initiator (3), perforating gun (4), Pressure breaking bullet (5), it is characterized in that: impacting type igniter (1) is arranged at the top of high energy combustible (2), delay initiator (3) is arranged at the bottom of high energy combustible (2), and Pressure breaking bullet (5) is arranged at the bottom of perforating gun (4).
2. combustion type ultra-positive pressure perforation generating means according to claim 1, it is characterized in that: high energy combustible (2) can be a gunpowder, also can be propellant.
3. combustion type ultra-positive pressure perforation generating means according to claim 1, it is characterized in that: perforating gun (4) has and unloads pore.
4. combustion type ultra-positive pressure perforation generating means according to claim 1, it is characterized in that: high energy combustible (2) is loaded on unloading in the pore of perforating gun (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02240182 CN2557693Y (en) | 2002-07-17 | 2002-07-17 | Gas combustion ultra-positive pressure perforating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02240182 CN2557693Y (en) | 2002-07-17 | 2002-07-17 | Gas combustion ultra-positive pressure perforating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2557693Y true CN2557693Y (en) | 2003-06-25 |
Family
ID=33713374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02240182 Expired - Fee Related CN2557693Y (en) | 2002-07-17 | 2002-07-17 | Gas combustion ultra-positive pressure perforating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2557693Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102587881A (en) * | 2012-03-21 | 2012-07-18 | 甘肃省化工研究院 | Shellless fracturing bomb and burning speed control method thereof |
| CN105064961A (en) * | 2015-08-26 | 2015-11-18 | 重庆大学 | Cable perforation device for preliminary fracture forming of shale bed rock |
| CN114458269A (en) * | 2020-10-21 | 2022-05-10 | 中国石油化工股份有限公司 | Perforation well completion method for improving production capacity of medium-high permeability oil and gas reservoir |
-
2002
- 2002-07-17 CN CN 02240182 patent/CN2557693Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102587881A (en) * | 2012-03-21 | 2012-07-18 | 甘肃省化工研究院 | Shellless fracturing bomb and burning speed control method thereof |
| CN102587881B (en) * | 2012-03-21 | 2015-10-28 | 甘肃省化工研究院 | The combustion speed control method of non-shell fracturing bullet and this non-shell fracturing bullet |
| CN105064961A (en) * | 2015-08-26 | 2015-11-18 | 重庆大学 | Cable perforation device for preliminary fracture forming of shale bed rock |
| CN105064961B (en) * | 2015-08-26 | 2017-05-31 | 重庆大学 | A kind of cable perforation device that seam is tentatively made to rammell rock |
| CN114458269A (en) * | 2020-10-21 | 2022-05-10 | 中国石油化工股份有限公司 | Perforation well completion method for improving production capacity of medium-high permeability oil and gas reservoir |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |