GB2586392A - Self-disabling detonator and perforation gun system - Google Patents
Self-disabling detonator and perforation gun system Download PDFInfo
- Publication number
- GB2586392A GB2586392A GB2015207.0A GB202015207A GB2586392A GB 2586392 A GB2586392 A GB 2586392A GB 202015207 A GB202015207 A GB 202015207A GB 2586392 A GB2586392 A GB 2586392A
- Authority
- GB
- United Kingdom
- Prior art keywords
- detonator
- deflagration
- transition tube
- pressure relief
- relief mechanism
- 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.)
- Granted
Links
- 230000007704 transition Effects 0.000 claims abstract 25
- 238000005474 detonation Methods 0.000 claims abstract 23
- 239000002360 explosive Substances 0.000 claims abstract 15
- 239000000463 material Substances 0.000 claims abstract 15
- 238000006243 chemical reaction Methods 0.000 claims abstract 4
- 238000000034 method Methods 0.000 claims 5
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
Classifications
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- 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
- E21B1/00—Percussion drilling
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
- E21B47/017—Protecting measuring instruments
-
- 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
- E21B43/116—Gun or shaped-charge perforators
- E21B43/1185—Ignition systems
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- E21B47/13—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. radio frequency
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Remote Sensing (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Air Bags (AREA)
Abstract
A detonator is provided. The detonator may include a deflagration-to-detonation transition tube, a cap, and an ignitor. The deflagration-to-detonation transition tube may include a pressure relief mechanism and a low-density explosive material. The cap may be coupled to a first end portion of the transition tube and include a high-density explosive material. The ignitor may be coupled to a second end portion of the transition tube and configured to ignite the low-density explosive material. The pressure relief mechanism may be configured to allow an increase in pressure that leads to a deflagration-to-detonation reaction upon ignition of the low-density explosive material via the ignitor and to prevent the increase in pressure when the detonator is exposed to heat.
Claims (20)
1. A detonator comprising: a deflagration-to-detonation transition tube comprising a pressure relief mechanism and a low-density explosive material; a cap coupled to a first end portion of the transition tube and comprising a high-density explosive material; and an ignitor coupled to a second end portion of the transition tube and configured to ignite the low-density explosive material, wherein the pressure relief mechanism is configured to allow an increase in pressure that leads to a deflagration-to-detonation reaction upon ignition of the low-density explosive material via the ignitor and to prevent the increase in pressure when the detonator is exposed to heat.
2. The detonator of claim 1, wherein the pressure relief mechanism extends outwardly from the low-density explosive material through the deflagration-to- detonation transition tube.
3. The detonator of claim 1, wherein the pressure relief mechanism comprises a pressure relief vent.
4. The detonator of claim 1, wherein the pressure relief mechanism comprises a thermally weak joint.
5. The detonator of claim 4, wherein the thermally weak joint is located between a first portion of the deflagration-to-detonation transition tube and a second portion of the deflagration-to-detonation transition tube.
6. The detonator of claim 4, wherein the thermally weak joint is located between the deflagration-to-detonation transition tube and the cap.
7. The detonator of claim 4, wherein the thermally weak joint is located between the deflagration-to-detonation transition tube and the ignitor.
8. The detonator of claim 1, wherein the pressure relief mechanism prevents the increase in pressure when the detonator is exposed to a temperature of at least 400°C.
9. A perforation gun comprising: a detonator comprising: a deflagration-to-detonation transition tube comprising a pressure relief mechanism and a low-density explosive material, a cap coupled to a first end of the transition tube and comprising a high-density explosive material, and an ignitor coupled to a second end of the transition tube and configured to ignite the low-density explosive material, wherein the pressure relief mechanism is configured to allow an increase in pressure that leads to a deflagration- to-detonation reaction upon ignition of the low-density explosive material via the ignitor and to prevent the increase in pressure when the detonator is exposed to heat; a detonating cord coupled to the detonator; and a plurality of shaped charges coupled to the detonating cord.
10. The perforation gun of claim 9, wherein the pressure relief mechanism extends outwardly from the low-density explosive material through the deflagration-to-detonation transition tube to an environment exterior to the deflagration-to-detonation transition tube.
11. The perforation gun of claim 9, wherein the pressure relief mechanism comprises a pressure relief vent.
12. The perforation gun of claim 9, wherein the pressure relief mechanism comprises a thermally weak joint.
13. The perforation gun of claim 12, wherein the thermally weak joint is located between a first portion of the deflagration-to-detonation transition tube and a second portion of the deflagration-to-detonation transition tube.
14. The perforation gun of claim 12, wherein the thermally weak joint is located between the deflagration-to-detonation transition tube and the cap.
15. The perforation gun of claim 12, wherein the thermally weak joint is located between the deflagration-to-detonation transition tube and the ignitor.
16. The perforation gun of claim 9, wherein the pressure relief mechanism prevents the increase in pressure when the detonator is exposed to a temperature of at least 400°C.
17. A method of preparing a perforation gun for transport, the method comprising: loading the perforation gun with shaped charges; loading the perforation gun with a self-disabling detonator comprising a pressure relief mechanism, wherein the pressure relief mechanism is configured to allow an increase in pressure that leads to a deflagration-to-detonation reaction upon ignition of a low-density explosive material of the self-disabling detonator via an ignitor of the self-disabling detonator and to prevent the increase in pressure when the detonator is exposed to heat; and connecting shaped charges to the self-disabling detonator with a detonating cord.
18. The method of claim 17, further comprising coupling a first portion of a deflagration-to-detonation transition tube of the self-disabling detonator to a second portion of the deflagration-to-detonation transition tube via a thermally weak joint to form the pressure relief mechanism of the self-disabling detonator.
19. The method of claim 17, further comprising coupling a deflagration-to- detonation transition tube of the self-disabling detonator to either a cap of the self-disabling detonator or the ignitor via a thermally weak joint to form the pressure relief mechanism of the self-disabling detonator.
20. The method of claim 17, wherein the pressure relief mechanism of the self-disabling detonator comprises a pressure relief vent formed in a deflagration-to-detonation transition tube of the self-disabling detonator.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2018/050068 WO2020050861A1 (en) | 2018-09-07 | 2018-09-07 | Self-disabling detonator and perforation gun system |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB202015207D0 GB202015207D0 (en) | 2020-11-11 |
| GB2586392A true GB2586392A (en) | 2021-02-17 |
| GB2586392B GB2586392B (en) | 2022-03-23 |
Family
ID=69721819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2015207.0A Active GB2586392B (en) | 2018-09-07 | 2018-09-07 | Self-disabling detonator and perforation gun system |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB2586392B (en) |
| WO (1) | WO2020050861A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5346014A (en) * | 1993-03-15 | 1994-09-13 | Baker Hughes Incorporated | Heat activated ballistic blocker |
| US6742602B2 (en) * | 2001-08-29 | 2004-06-01 | Computalog Limited | Perforating gun firing head with vented block for holding detonator |
| US7806035B2 (en) * | 2007-06-13 | 2010-10-05 | Baker Hughes Incorporated | Safety vent device |
| US20150292306A1 (en) * | 2014-04-15 | 2015-10-15 | Hunting Titan, Inc. | Venting System for a Shaped Charge in the Event of Deflagration |
| US20150330757A1 (en) * | 2014-05-14 | 2015-11-19 | Fike Corporation | Vented-at-temperature igniter |
-
2018
- 2018-09-07 WO PCT/US2018/050068 patent/WO2020050861A1/en active Application Filing
- 2018-09-07 GB GB2015207.0A patent/GB2586392B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5346014A (en) * | 1993-03-15 | 1994-09-13 | Baker Hughes Incorporated | Heat activated ballistic blocker |
| US6742602B2 (en) * | 2001-08-29 | 2004-06-01 | Computalog Limited | Perforating gun firing head with vented block for holding detonator |
| US7806035B2 (en) * | 2007-06-13 | 2010-10-05 | Baker Hughes Incorporated | Safety vent device |
| US20150292306A1 (en) * | 2014-04-15 | 2015-10-15 | Hunting Titan, Inc. | Venting System for a Shaped Charge in the Event of Deflagration |
| US20150330757A1 (en) * | 2014-05-14 | 2015-11-19 | Fike Corporation | Vented-at-temperature igniter |
Also Published As
| Publication number | Publication date |
|---|---|
| GB202015207D0 (en) | 2020-11-11 |
| WO2020050861A1 (en) | 2020-03-12 |
| GB2586392B (en) | 2022-03-23 |
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