CN105370258B - Cracking method is made in a kind of explosion for improving oil and gas production - Google Patents
Cracking method is made in a kind of explosion for improving oil and gas production Download PDFInfo
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- CN105370258B CN105370258B CN201510647310.7A CN201510647310A CN105370258B CN 105370258 B CN105370258 B CN 105370258B CN 201510647310 A CN201510647310 A CN 201510647310A CN 105370258 B CN105370258 B CN 105370258B
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- cumulative
- split
- post
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- sockets
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000004880 explosion Methods 0.000 title claims abstract description 12
- 238000005336 cracking Methods 0.000 title claims abstract description 10
- 230000001186 cumulative effect Effects 0.000 claims abstract description 30
- 239000003129 oil well Substances 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000003208 petroleum Substances 0.000 claims abstract description 8
- 238000003306 harvesting Methods 0.000 claims abstract description 6
- 238000005474 detonation Methods 0.000 claims description 15
- 241000209202 Bromus secalinus Species 0.000 claims description 3
- 239000011435 rock Substances 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims 1
- 238000011084 recovery Methods 0.000 abstract description 8
- 238000005065 mining Methods 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000000638 stimulation Effects 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
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
- E21B43/263—Methods for stimulating production by forming crevices or fractures using explosives
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- 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)
- Earth Drilling (AREA)
Abstract
The present invention relates to oil mining technical field, cracking method is made in specifically a kind of explosion for improving oil and gas production, the present invention is to split post by manufacturing a kind of special cumulative and making, oil well bottom is put it into carry out ignition and make to split, make to form network-like connection water conservancy diversion gap in exploitation tile, it is final the generation of exploitation tile is met that petroleum resources is abundant or even oozes out completely and the rupture gap of flowing needs, Support Resource oozes out, flowed and harvesting needs, so as to greatly improve oil and gas production recovery ratio, suitable for the exploitation of all kinds of oil wells.
Description
Technical field
The present invention relates to oil mining technical field, cracking method is made in specifically a kind of explosion for improving oil and gas production.
Background technology
In current oil-gas mining production practices, the major technique that maturation is applied to petroleum resources exploitation has perforation, water
Power drives and hydraulic fracturing, and carries out effective exploitation that oil gas adopts layer as support, forms perforation and links up blowing and opens
Adopt, the tertiary recovery pattern of waterflooding behavior and perforating and fracturing exploitation three-step-march.In third time is exploited, in order to improve resource harvesting
Rate, composite gun perforation and hydraulic fracturing are often applied repeatedly to adopting block, or even by the midwifery measure such as intensive shaft building come as far as possible
More back production resources.But due to existing stimulation technology（Hydrofracturing method）, it is broken using dead load manufacture is continuously applied
Crack gap, it is characterized in that under the conditions of earth formation is consistent with crustal stress, once load makes certain point produce gap first, then after
Continuous pressure often can only act on along this gap, gap is obtained extension and is expanded, but hardly be pressed again elsewhere with follow-up
Produce newborn gap.Therefore, hydrofracturing method can not both ensure that adopting layer exploitation tile Inner in oil gas produced enough flow guiding slits
Gap, water conservancy diversion gap can not be ensured again towards needing direction to develop, can not more ensure to prepare holostrome thickness, Quan Cai in exploitation tile
Block, the comprehensive water conservancy diversion gap in networking distribution.So even adopting block to reservoir is repeated pressure break, it is also not possible to makes
Water conservancy diversion gap spreads all over whole exploitation tile, and a large amount of petroleum resourceses because lack ooze out with flow necessary to gap, all the time can not
Ooze out and flow to recovery well, cause recovery activity to be recovered to the oil gas money around gap and gap in limited range forever
Source.Limited by that can ooze out with current resources, can be fewer and fewer with the petroleum resources extended into back production well of exploitation,
When the output quality or output quantity of Oil/gas Well be not serious up to standard, there is oil even if knowing perfectly well and adopting block Inner, or even also have many oil,
Also the exploitation abandoned reservoir and adopt block that can only be helpless.Therefore the recovery ratio of oil well has been had a strong impact on.
The content of the invention
Present invention aim to solve poor fluidity under Oil/gas Well, and existing hydrofracturing method is made and splits effect and have
Limit, the problem of having a strong impact on oil well recovery ratio, there is provided cracking method is made in a kind of explosion for improving oil and gas production.
The present invention concrete scheme be：Cracking method is made in a kind of explosion for improving oil and gas production, it is characterized in that：Including following step
Suddenly：
（1）Make a special cumulative and make and split post, it has cylindrical shell, and housing outer diameter is smaller 10mm than oil well bore, long
Degree is more than 1 meter, and the filling castexplosive in housing, its density is 1.7g/cm3, plug and end cap are loaded onto at housing both ends, is being held
The upper trigger of one end inserting of lid；And multiple sockets for collecting energy are suppressed with housing outer surface, sockets for collecting energy is in plum blossom in surface of shell
Shape is arranged；
（2）Special cumulative is made and splits post and is put into from oil well mouth, sinks down into oil well bottom automatically, and made with cumulative and split post simultaneously
The ranging rope with counterweight is put into, measures sinking dead-centre position；
（3）Detonation tool is assembled with detonator by requirement, lead is passed, and detonation tool is put into oil well, under automatic
It is sink to cumulative and makes and splits the static place of post；
（4）The two relative position is judged by ranging rope, and ensures that both fully contact；
（5）Confirm that detonation tool and cumulative are made to split after post is in specified location, ranging rope is taken out；
（6）By cap sensitive detonation tool, after detonation tool blast, cumulative will be ignited and made and split post blast, realize and surrounding is hidden
Oil rock layer, which is made, to be split, and makes to form network-in-dialing water conservancy diversion gap in exploitation tile, is finally produced exploitation tile and is met that petroleum resources fills
Divide or even ooze out completely the rupture gap needed with flowing, Support Resource oozes out, flowed with harvesting needs.
Cumulative of the present invention, which is made, to be split trigger one end in post and stretches into more than 180mm depth in castexplosive, and is in hank knotting
Buckle structure, it is in latch closure shape that the other end, which is stretched out outside end cap, convenient lifting and ignition.
Cumulative of the present invention, which is made, to be split sockets for collecting energy in post and is put in surface of shell in arrangement, at least four rows, it is each drain into it is few
There are four sockets for collecting energy, it is uniform around housing exterior walls, and adjacent two rows sockets for collecting energy in the axial direction arrange by interlaced arrangement, formation plum blossom-shaped.
Cumulative of the present invention makes two cumulatives that the spacing split in post between adjacent two rows sockets for collecting energy is equal in same row
Spacing between cave.
Cumulative of the present invention makes that to split in post sockets for collecting energy be hemispherical hole, cheats deep 10mm, bore is φ 30mm.
Cumulative of the present invention makes that to split plug and ending cover thickness in post be 60-80mm.
The present invention makes to split post and adopt underground oil-gas reservoir on layer and carry out pinpointing explosion as a result of special special cumulative and makes and split,
It can make to form network-like connection water conservancy diversion gap in exploitation tile, finally produce exploitation tile and meet petroleum resources fully or even ooze
Go out the rupture gap needed with flowing, Support Resource oozes out, flows and harvest needs, and it is left can to improve oil well recovery ratio 10-20%
It is right.
Brief description of the drawings
Fig. 1 is the front view of the present invention；
Fig. 2 is the main sectional view of the present invention.
In figure：1-trigger, 2-end cap, 3-housing, 4-castexplosive, 5-sockets for collecting energy, 6-plug.
Embodiment
The progress explosion of a certain oil well is made using the inventive method and split to improve its recovery ratio, includes following steps：（1）
Make a special cumulative first to make and splits post, referring to Fig. 1,2, it has a cylindrical shell 3, and the external diameter of housing 3 is smaller than oil well bore
10mm, length are more than 1.5 meters（Generally higher than more than 1 meter）, the filling castexplosive 4 in housing 3, its density is 1.7g/
cm3, plug 6 and end cap 2 are loaded onto at the both ends of housing 3, the trigger 1 in the inserting of one end of end cap 2；And in the outer surface of housing 3
Multiple sockets for collecting energy 5 are suppressed with, sockets for collecting energy 5 is arranged on the surface of housing 3 in plum blossom-shaped；
（2）Special cumulative is made and splits post and is put into from oil well mouth, sinks down into oil well bottom automatically, and made with cumulative and split post simultaneously
The ranging rope with counterweight is put into, measures sinking dead-centre position；
（3）Detonation tool is assembled with detonator by requirement, lead is passed, and detonation tool is put into oil well, under automatic
It is sink to cumulative and makes and splits the static place of post；
（4）The two relative position is judged by ranging rope, and ensures that both fully contact；
（5）Confirm that detonation tool and cumulative are made to split after post is in specified location, ranging rope is taken out；
（6）By cap sensitive detonation tool, after detonation tool blast, cumulative will be ignited and made and split post blast, realize and surrounding is hidden
Oil rock layer, which is made, to be split, and makes to form network-in-dialing water conservancy diversion gap in exploitation tile, is finally produced exploitation tile and is met that petroleum resources fills
Divide or even ooze out completely the rupture gap needed with flowing, Support Resource oozes out, flowed with harvesting needs.
The one end of trigger 1 described in this implementation should stretch into more than 180mm depth in castexplosive 4（Specially 200mm）, and
In hank knotting buckle structure, it is in latch closure shape that the other end, which stretches out the outside of end cap 2, convenient lifting and ignition.
Sockets for collecting energy 5 described in this implementation is put on the surface of housing 3 in arrangement, shares six rows（Typically should at least there are four rows）, often
One row is provided with four sockets for collecting energy 5, uniform around the outer wall of housing 3, and adjacent two rows sockets for collecting energy 5 interlaced arrangement in the axial direction, forms plum
Flower-shaped arrangement.
Spacing in this implementation between adjacent two rows sockets for collecting energy 5 is equal to the spacing between two sockets for collecting energy 5 in same row.
Sockets for collecting energy 5 described in this implementation is cheated for hemispherical, cheats deep 10mm, bore is φ 30mm.
Plug 6 described in this implementation and the thickness of end cap 2 are 60-80mm, specially 70mm.
Claims (4)
1. cracking method is made in a kind of explosion for improving oil and gas production, it is characterized in that：Comprise the following steps：
（1）Make a special cumulative and make and split post, it has cylindrical shell, and housing outer diameter is smaller 10mm than oil well bore, and length is big
In 1 meter, the filling castexplosive in housing, its density is 1.7g/cm3, plug and end cap are loaded onto at housing both ends, in end cap
The upper trigger of one end inserting；And multiple sockets for collecting energy are suppressed with housing outer surface, sockets for collecting energy is put in surface of shell in arrangement, extremely
Rare four row, it is each to drain into rare four sockets for collecting energy, it is uniform around housing exterior walls, and adjacent two rows sockets for collecting energy interlocks cloth in the axial direction
Put, form plum blossom-shaped arrangement；The cumulative, which is made, to be split in post, and the spacing between adjacent two rows sockets for collecting energy is equal to two in same row
Spacing between sockets for collecting energy；
（2）Special cumulative is made and splits post and is put into from oil well mouth, sinks down into oil well bottom automatically, and made with cumulative and split post while be put into
Ranging rope with counterweight, measures sinking dead-centre position；
（3）Detonation tool is assembled with detonator by requirement, lead is passed, and detonation tool is put into oil well, is sunk down into automatically
Cumulative, which is made, splits the static place of post；
（4）The two relative position is judged by ranging rope, and ensures that both fully contact；
（5）Confirm that detonation tool and cumulative are made to split after post is in specified location, ranging rope is taken out；
（6）By cap sensitive detonation tool, after detonation tool blast, cumulative will be ignited and made and split post blast, realize and oil rock is hidden to surrounding
Layer, which is made, to be split, and makes to form network-in-dialing water conservancy diversion gap in exploitation tile, is finally produced exploitation tile and is met that petroleum resources is fully
To the rupture gap oozed out completely with flowing needs, Support Resource oozes out, flowed and harvesting needs.
2. cracking method is made in a kind of explosion for improving oil and gas production according to claim 1, it is characterized in that：The cumulative, which is made, to be split
More than 180mm depth in castexplosive is stretched into trigger one end in post, and is in hank knotting buckle structure, and the other end, which is stretched out outside end cap, is in
Latch closure shape, convenient lifting and ignition.
3. cracking method is made in a kind of explosion for improving oil and gas production according to claim 1, it is characterized in that：The cumulative, which is made, to be split
Sockets for collecting energy is cheated for hemispherical in post, cheats deep 10mm, bore is φ 30mm.
4. cracking method is made in a kind of explosion for improving oil and gas production according to claim 3, it is characterized in that：The cumulative, which is made, to be split
Plug and ending cover thickness are 60-80mm in post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510647310.7A CN105370258B (en) | 2015-10-09 | 2015-10-09 | Cracking method is made in a kind of explosion for improving oil and gas production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510647310.7A CN105370258B (en) | 2015-10-09 | 2015-10-09 | Cracking method is made in a kind of explosion for improving oil and gas production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105370258A CN105370258A (en) | 2016-03-02 |
| CN105370258B true CN105370258B (en) | 2018-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510647310.7A Active CN105370258B (en) | 2015-10-09 | 2015-10-09 | Cracking method is made in a kind of explosion for improving oil and gas production |
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| CN (1) | CN105370258B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111366051A (en) * | 2020-04-14 | 2020-07-03 | 卢文厅 | Method for multipoint energy-gathering micro-perforation type blasting in blast hole and mounting structure thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101358519A (en) * | 2007-08-02 | 2009-02-04 | 黑龙江华安民爆器材有限责任公司 | Lifting bail type core pipe connecting with high energy gas fracture bomb |
| CN101619654A (en) * | 2009-07-27 | 2010-01-06 | 西安近代化学研究所 | Pulse fracturing sand injector for horizontal wells |
| CN201531261U (en) * | 2009-11-11 | 2010-07-21 | 西安通源石油科技股份有限公司 | Deflagration fracturing device used in cased well |
| CN102080527A (en) * | 2010-12-29 | 2011-06-01 | 西安通源石油科技股份有限公司 | Method and device for detonating and fracturing scattered objects |
| CN102536177A (en) * | 2012-03-21 | 2012-07-04 | 甘肃兰金民用爆炸高新技术公司 | Positive-pressure blasting device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100132946A1 (en) * | 2008-12-01 | 2010-06-03 | Matthew Robert George Bell | Method for the Enhancement of Injection Activities and Stimulation of Oil and Gas Production |
-
2015
- 2015-10-09 CN CN201510647310.7A patent/CN105370258B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101358519A (en) * | 2007-08-02 | 2009-02-04 | 黑龙江华安民爆器材有限责任公司 | Lifting bail type core pipe connecting with high energy gas fracture bomb |
| CN101619654A (en) * | 2009-07-27 | 2010-01-06 | 西安近代化学研究所 | Pulse fracturing sand injector for horizontal wells |
| CN201531261U (en) * | 2009-11-11 | 2010-07-21 | 西安通源石油科技股份有限公司 | Deflagration fracturing device used in cased well |
| CN102080527A (en) * | 2010-12-29 | 2011-06-01 | 西安通源石油科技股份有限公司 | Method and device for detonating and fracturing scattered objects |
| CN102536177A (en) * | 2012-03-21 | 2012-07-04 | 甘肃兰金民用爆炸高新技术公司 | Positive-pressure blasting device |
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| Publication number | Publication date |
|---|---|
| CN105370258A (en) | 2016-03-02 |
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