CN101270634B - Down-hole wall-fixing method - Google Patents
Down-hole wall-fixing method Download PDFInfo
- Publication number
- CN101270634B CN101270634B CN200810025172A CN200810025172A CN101270634B CN 101270634 B CN101270634 B CN 101270634B CN 200810025172 A CN200810025172 A CN 200810025172A CN 200810025172 A CN200810025172 A CN 200810025172A CN 101270634 B CN101270634 B CN 101270634B
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- China
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- injection
- injection tube
- fixing method
- hole
- hole wall
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Abstract
An underground well cementing method relates to the field of underground construction technology. Temperature resistance glue solution is respectively arranged in all the injection tubes with explosive encapsulated and a plurality of injection tubes are respectively arranged under the well. All the injection tubes rip into stratum at 360 degrees around circumference by the means of ignition. Compared with prior capping method, the underground well cementing method has the advantages of efficiency, solid capping, low cost and long acting and is easy for construction.
Description
Technical field
The present invention relates to the down-hole technical field of construction.
Background technology
In the petroleum drilling operation; Because the crack that forms in some rock loose cementation, stratum diagenetic process or the effect of reservoir stress, often occur that the borehole wall collapses or formation leakage, the lighter causes the down-hole complicated; The serious bit freezing that causes; Even more serious possibly cause loss circulation followed blowout, and people's lives and properties are caused grave danger, and economic loss is huge.
For many years; People are seeking to solve the way of this type problem always; For caving ground, people improve the cementing strength and the imbibition ability that reduces rock on stratum through adding anti-collapse dose of chemistry, perhaps increase the head of liquid of drilling fluid through the density that improves drilling fluid; Come the stress that caves on balance stratum, thereby reach the purpose of stabilizing borehole.For the leakage stratum, people add in drilling fluid such as oarse-grained loss circulation materials such as cotton seed hulls, walnut shells, stop up hole, alleviate leakage; Perhaps the material with gel-like is pumped into the precalculated position with slush pump, under certain differential pressure action, makes it get into the stratum, reaches the purpose of leak stopping.If incessantly stifled, carry out shutoff through cementing again.But cementing plugging pollutes drilling fluid and oil-gas Layer, and the oil well that has needs repeatedly cementing plugging just can achieve the goal.
Summary of the invention
The present invention seeks to invent a kind of operation, solid effective, fireballing down-hole wall-fixing method of wall be convenient to.
The present invention earlier is provided with the heatproof glue respectively in being packaged with each injection tube of explosive, then a plurality of injection tubes are arranged in the down-hole, ignite make each injection tube in the down-hole circumferencial direction 360 degree inject the stratum.
The present invention's injection tube is injected the stratum under the effect of powder burning, the heatproof glue in the injection tube gets into the slit, stratum under the effect of rock extruding, formation cementation is formed net structure; Simultaneously, for good and all stay in the stratum, cause rock to produce crimp because of injection tube.For caving ground, injection tube of the present invention has played the effect of piling Gu Bi; For slit formation leakage stratum, the rock deformation that injection tube causes has played and has stopped up the effect in crack, thereby reaches the purpose that stops leakage.The more existing method for blocking speed of the present invention is fast, shutoff is tight, cost is low, long-acting, also convenient construction operation.
For ease injection tube is placed the down-hole, each injection tube according to the invention is arranged through the injection frame that can stretch into the down-hole respectively.Can be earlier in ground be installed in injection tube on the injection frame, dress heatproof glue in the injection tube will inject frame with cable and transfer in the well to the precalculated position, during ignition, only need light a fire on ground, just can each injection tube of down-hole be squeezed into the stratum.
The lead-in wire outer end of said explosive can be connected with the ground apparatus to cause bursting through cable.
Also can the injection frame be connected on the drilling rod, the injection frame down behind the precalculated position, is full of liquid in the well in drilling rod, through the slush pump pressurization on the ground explosive in the injection tube that detonates.
For injection tube is separated with the injection frame after blast, said injection tube is connected through easily broken rope with injecting between the frame.
The specific embodiment:
The present invention can be by a kind of polyhedral metal injection frame; A kind of injection tube is designed in a plurality of holes of processing again on each plane of injection frame, can encapsulate explosive in the injection tube; The other end can encapsulate the heatproof glue, also can the heatproof glue of packing be fixedly connected on the injection tube.Injection tube is placed in the hole of injection frame, with easily broken rope injection tube is tacked, the other end of rope is fixed on the launcher.
With cable launcher is put the position that to the well the borehole wall needs reinforcement or needs leak stopping, igniting or down-hole pressurization are detonated on ground, and injection tube is earned disconnected rope under the promotion of explosive charge power, and circumferencial direction 360 degree are injected the stratum in the down-hole.
Glue in the injection tube gets into the slit, stratum under the effect of rock extruding, formation cementation is formed net structure; Injection tube is forever stayed in the stratum, makes rock produce crimp.For caving ground, injection tube has played the effect of piling Gu Bi; For slit formation leakage stratum, the rock deformation that injection tube causes has played and has stopped up the effect in crack, thereby reaches the purpose that stops leakage.
Also can the injection frame be connected on the drilling rod, the injection frame down behind the precalculated position, is full of liquid in the well in drilling rod, through the slush pump pressurization on the ground explosive in the injection tube that detonates.
Claims (5)
1. down-hole wall-fixing method is characterized in that in being packaged with each injection tube of explosive, the heatproof glue being set respectively earlier, then a plurality of injection tubes is arranged in the down-hole, ignite make each injection tube in the down-hole circumferencial direction 360 degree inject the stratum.
2. according to the said down-hole wall-fixing method of claim 1, it is characterized in that said each injection tube is respectively through stretching into the injection frame layout of down-hole.
3. according to the said down-hole wall-fixing method of claim 2, it is characterized in that the lead-in wire outer end of said explosive can be connected with the ground apparatus to cause bursting through cable.
4. according to the said down-hole wall-fixing method of claim 2, it is characterized in that the injection frame is connected on the drilling rod, the injection frame down behind the precalculated position, is full of liquid in the well in drilling rod, through the slush pump pressurization on the ground explosive in the injection tube that detonates.
5. according to the said down-hole wall-fixing method of claim 2, it is characterized in that being connected through easily broken rope between said injection tube and the injection frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810025172A CN101270634B (en) | 2008-04-25 | 2008-04-25 | Down-hole wall-fixing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810025172A CN101270634B (en) | 2008-04-25 | 2008-04-25 | Down-hole wall-fixing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101270634A CN101270634A (en) | 2008-09-24 |
| CN101270634B true CN101270634B (en) | 2012-09-05 |
Family
ID=40004834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810025172A Expired - Fee Related CN101270634B (en) | 2008-04-25 | 2008-04-25 | Down-hole wall-fixing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101270634B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121361B (en) * | 2011-01-10 | 2013-05-08 | 刘甘露 | Multi-phase underground injector |
| CN106930723B (en) | 2017-02-15 | 2019-01-18 | 中国石油大学(北京) | Wall device and its application in solution cavity leak stopping are consolidated in the leak stopping of nesting of cumulative binding type |
| CN110185412B (en) * | 2019-05-24 | 2020-11-13 | 中国石油大学(北京) | Downhole plugging device |
| CN110469292B (en) * | 2019-08-05 | 2021-09-17 | 中国石油化工股份有限公司 | Circulating channeling sealing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB882864A (en) * | 1959-10-19 | 1961-11-22 | William Joseph Yahn | Method of increasing production of oil, gas and other wells |
| CN1346011A (en) * | 2000-09-25 | 2002-04-24 | 中国科学技术大学 | Method for blocking perforation of oil well by explosion and blocking bullet |
| CN1389742A (en) * | 2001-06-06 | 2003-01-08 | 大庆油田有限责任公司勘探开发研究院 | Seismic blasthole cementing method |
-
2008
- 2008-04-25 CN CN200810025172A patent/CN101270634B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB882864A (en) * | 1959-10-19 | 1961-11-22 | William Joseph Yahn | Method of increasing production of oil, gas and other wells |
| CN1346011A (en) * | 2000-09-25 | 2002-04-24 | 中国科学技术大学 | Method for blocking perforation of oil well by explosion and blocking bullet |
| CN1389742A (en) * | 2001-06-06 | 2003-01-08 | 大庆油田有限责任公司勘探开发研究院 | Seismic blasthole cementing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101270634A (en) | 2008-09-24 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20180425 |