CN101358519B - Lifting bail type core pipe connecting with high energy gas fracture bomb - Google Patents
Lifting bail type core pipe connecting with high energy gas fracture bomb Download PDFInfo
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- CN101358519B CN101358519B CN2007101438136A CN200710143813A CN101358519B CN 101358519 B CN101358519 B CN 101358519B CN 2007101438136 A CN2007101438136 A CN 2007101438136A CN 200710143813 A CN200710143813 A CN 200710143813A CN 101358519 B CN101358519 B CN 101358519B
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- core pipe
- drop handle
- lifting bail
- high energy
- energy gas
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Abstract
The invention provides a high energy gas fracturing bomb connected by a lifting bail core pipe which comprises the parts like the component of cable joint, the component of a lower lifting bail, a main igniting charge, a core pipe used for a sandwich, the component of the main charge, and the like. The fracturing bomb is also provided with a burning preventing rod piece; the burning preventing rod piece is connected with the component of the cable joint and the component of the lower lifting bail by adopting a lifting bail mode; the burning preventing rod piece is connected by one or a plurality of burning preventing rods; the burning preventing rod is shaped by bending the reinforcing steel bars of Psi 6 to 14; the two pieces of the reinforcing steel bars of a certain length between the lifting bails at the two ends of the burning preventing rod are close and welded into a whole; a plurality of jackets are welded on the burning preventing rod; a high temperature wire penetrates from the inner hole of the jacket; the jacket is a steel pipe with a length of 5mm; 5 to 6 jackets are welded on each burning preventing rod. The fracturing bomb has the advantages of low material cost and simple technique, can be safely and reliably used, is conveniently and quickly operated, has a good fracturing effec and can generate cracks on a plurality of layers and on a plurality of parts; besides, the production and injection increasing effect is very remarkable.
Description
Technical field
The present invention provides a kind of high energy gas fracture bomb, and particularly a kind of lifting bail type core pipe connecting with high energy gas fracture bomb belongs to technical field of petroleum extraction.
Background technology
In oil exploitation, the effective measures that improve hypotonicity, low-porosity oil and gas production are to implement pressure break, improve the permeability of oil reservoir, reduce oil flow resistance, thereby reach the purpose of raising the output.
The beginning of the sixties; Country such as the U.S., the former Soviet Union extensively adopts High-Energy Gas Fracturing Technology; The series of products of high energy gas fracture bomb have successfully been developed; China also successfully develops the high energy gas fracture bomb of multiple model at present, and be widely used in oil fields such as grand celebration, the Liaohe River, Xinjiang, prolongation, facts have proved that high energy gas fracture bomb increasing yield and injection effect very significantly.But high energy gas fracture bomb also ubiquity high temperature and high pressure gas that burning back the produces cable of seriously ablating, and makes the cable fracture that becomes fragile, because cable is carrying whole Pressure breaking bullet weight, causes the bullet accident; When using electric detonator initiation, in work progress, often cause the detonator lead that has connected to fracture, cause and do over again; Light main charge in the sandwich segment connection, caused defectives such as waste to a certain extent.
Summary of the invention
The present invention provides a kind of lifting bail type core pipe connecting with high energy gas fracture bomb that is used for hypotonicity, the exploitation of low-porosity oil-gas Layer; The anti-burning bar assembly that this Pressure breaking bullet adopts; Strengthened and lighted main charge and the distance of carrying cable, seriously the ablate problem of cable of high temperature, the gases at high pressure that produced when having solved the Pressure breaking bullet burning well; The lead of electric cap adopts the end face of round mandrel to be connected with spring compression, has guaranteed the safe and reliable of connection; Be employed in sandwich segment and utilize the structure of core Guan Chuanhuo, improve the utilization rate of gunpowder effectively; This Pressure breaking bullet utilization lights time difference that main charge and these two kinds of powder charges of main charge light and reaches and prolong the duration of keeping surge pressure, realizes secondary synergy.
Technical scheme
The present invention by cable connector assembly, anti-burn the bar assembly, down the drop handle assembly, light the main charge assembly, interlayer is formed with parts such as core-pipe subassembly and main charges.
Pressure breaking bullet is used electric detonator initiation; Cable connector is to be connected through high temperature resistant wire with detonator; For the ablation of the powder burning gas that prevents Pressure breaking bullet to cable; Be connected the anti-bar that burns with following drop handle inter-module at cable connector, the anti-bar that burns is designed to regular length, can connect one or more anti-burning bars according to realistic well condition; Be welded with a plurality of sheaths anti-the burning on the bar, lead passes in sheath, can avoid lead in the process of going into the well, to damage because of collision; Cable connector with anti-burn bar, the anti-bar that burns burns bar, the anti-burning between bar and the following drop handle assembly for lifting bail type is connected with anti-, after connecting bolt, nut connection, in the through hole of the screw head of bolt, penetrates dowel fixes, prevents the connection dropout.
Following drop handle assembly is made up of sealing-plug, end cap, gland, insulating washer, spring, housing, earthing screw, detonator, detonating fuse, centralizer and crossover sub.
Insulating washer is the stairstepping cylinder, and endoporus is processed into the single order trapezoidal hole, and spring is inserted in the ladder hole on the ladder, and the spring after inserting will exceed ladder hole end face 2 millimeter, and felt pad encloses the effect of electric conductor spring and housing insulation; Sealing-plug is a copper round plug that has a plurality of annular protrusions, circle mandrel outer surface casting rubber, and an end of circle plug is processed a radial direction through hole, is used for penetrating the connection high temperature wire, and the junction twines the jail with the high pressure mackintosh, prevents short circuit; The other end is the circular end face of reducing, pushes down the spring in the ladder hole with this end face, makes spring become compressive state, guarantees that the lower surface of plug is good with contacting of spring; Round plug in the sealing-plug plays electric action, and the rubber of mandrel outer die casting plays the plug of seal in combustion gases and conduction and the insulating effect of housing; A lead of detonator penetrates from ladder hole with spring and is intertwined and connected, and another root lead is fixed on the crossover sub with earthing screw, constitutes the loop; Detonator is connected with detonating fuse, and detonating fuse is ignited, and the length of detonating fuse is no more than the upper surface of lighting main charge.
With the crossover sub junction centralizer is housed at following drop handle assembly, plays the centering effect, prevent that powder column and sleeve pipe rub and damage in the process of going into the well.
Payzone and interlayer are divided in stratum in exploitation, and this Pressure breaking bullet adopts the core pipe to connect for sandwich segment, only puts into the igniting powder column of some in this core pipe, only work passing fire action; Then adopt the fastening certain thickness main charge of lighting in core tube outside for the payzone section, after the combustion of the ignition charge pin deck in the core pipe, the high temperature of generation is lighted the outer fastening main charge of lighting of core pipe, forms high temperature and high pressure gas; Light below the main charge through the fixing main charge of rod member, the main charge powder column is processed to a plurality of annular grooves again, make powder column axially with radially thick equating of burning meat, both increased the incipient combustion area of powder column, can make powder column while after-flame again; The head of main charge is equipped with the guiding cushion rubber, both can protect the powder column of main charge in the process of going into the well, not to be damaged by collision, and plays the centering effect simultaneously with centralizer again.
This Pressure breaking bullet is exactly to utilize to light time difference that main charge and these two kinds of powder charges of main charge light and reach and prolong the duration of keeping surge pressure, the purpose of realization secondary synergy.
The anti-burning bar of this Pressure breaking bullet, light main charge, interlayer all is a regular length with core pipe and main charge post, as required, they can connect one or more; In the exploitation of reality, stratum condition has been explored clear, and said modules arbitrarily conversion connects, and makes exploitation desirable more.
This Pressure breaking bullet has that material price is cheap, processing technology is simple; Safe and reliable, convenient to operation, easy to carry, transportation safety; Fracturing effect is good, can produce advantages such as crack in multi-level multi-section position; The increasing yield and injection effect very significantly; And address the aforementioned drawbacks well.
Description of drawings
Below in conjunction with accompanying drawing and instantiation the present invention is further specified
Fig. 1. lifting bail type core pipe connects multipurpose high energy gas fracture bomb structure
Fig. 2. the cable connector structure
Fig. 3. the anti-member structure that burns
Fig. 4. following drop handle modular construction
Fig. 5. light the main charge structure
Fig. 6. interlayer is used the core tubular structure
Fig. 7. the main charge structure
Fig. 8. sealing, insulation system
Fig. 9. connecting bolt, nut, pin feature
The specific embodiment
Lifting bail type core pipe connecting with high energy gas fracture bomb is as shown in Figure 1, and it is mainly by cable connector assembly 1, the anti-rod member 2 that burns, and following drop handle assembly 3 is lighted main charge assembly 4, and interlayer is with core-pipe subassembly 5, main charge assembly 6 compositions such as grade.
Like Fig. 2, shown in Figure 4; One end of cable connector processes screw thread 11; Can directly carry the Malong head thread of usefulness to be connected with cable; The end cap of the other end of cable connector and following drop handle assembly symmetry vertically washes out two circular holes that certain depth is arranged, and insert two reinforcing bar heads 14 at 13 beginnings of the drop handle that bends in the circular hole, and welding is fixing; Like Fig. 2,3, shown in 4; The drop handle of cable connector, down the drop handle and anti-of drop handle assembly to burn bar be that reinforcing bar with ￠ 6～14 bends and forms; Two reinforcing bars are welded into one near section beyond the ring portion, and weld a plurality of sheaths on the bar anti-the burning, and sheath processes with the steel pipe of the long ￠ 10 of 5mm; Higher temperature line passes from the endoporus of sheath, has avoided that higher temperature line is damaged short circuit because of collision in the process of going into the well.
Following drop handle modular construction such as Fig. 4 are made up of drop handle 30, sealing-plug 33, end cap 31, gland 32, insulating washer 35, spring 34, housing 36, earthing screw 38, detonator 37, detonating fuse 312, centralizer 310 and crossover sub 311 etc.
Like Fig. 4, shown in Figure 8, insulating washer 35 is the stairstepping cylinder; The phenolic aldehyde cotton laminated cloth rod that material selection has insulating effect forms through machining; Be contained in housing 36 upper ends, the insulating washer endoporus is processed into the single order trapezoidal hole, and spring 34 is inserted on the ladder in the ladder hole; Spring after inserting will exceed ladder hole end face 2 millimeter, and insulating washer plays insulating effect to electric conductor spring and housing; The conduction plug 313 of sealing-plug 33 is become through machined surface by circular copper rod; The conduction plug processes a plurality of annular protrusions 314, at conduction plug external surface casting rubber, but the annular protrusion reinforced stock with conduct electricity being connected of plug; One end of conduction plug is processed a radial direction through hole 316; Be used for penetrating the connection high temperature wire, and twine the jail with the coating of high pressure mackintosh, prevent short circuit in the junction; The other end is the circular end face of reducing, pushes down the spring 34 in the ladder hole with this end face, makes spring become compressive state, guarantees that the lower surface of plug is good with contacting of spring; The conduction plug of sealing plug plays electric action, and the rubber of die casting plays the insulating effect of sealing combustion powder column and conduction plug and housing; A lead of detonator penetrates from ladder hole with spring and is intertwined and connected, and another root lead is fixed on the crossover sub 311 with earthing screw 38, constitutes the loop; Detonator 37 is connected with detonating fuse, and the link of detonator and detonating fuse has a cylindrical cavity, after the certain degree of depth of detonating fuse insertion cavity; The head of cavity chucking, guarantee that detonator is connected with the reliable of detonating fuse, detonating fuse is ignited; The length of detonating fuse is no more than the upper surface of lighting main charge, because detonating fuse surpasses when lighting the upper surface of main charge, after detonating fuse is ignited; Core tube head light-wall pipe part is blown up by detonating fuse, caused the accident.
As shown in Figure 4, gland 32 adopts with housing 36 and is threaded, and with end cap 31 sealing-plug 33 is compressed, and gland 32 endoporus that cooperate with sealing-plug 33 process certain tapering; The rubber of sealing-plug 33 mandrel external surfaces casting has certain tapering, and two inclined-plane compression fit have guaranteed that sealing is reliable.Housing 36 is connected with crossover sub 311, and through 39 sealings of the sealing ring on the crossover sub.
The connection of detonator such as Fig. 4, the ground wire of detonator 37 directly utilizes screw to be connected with crossover sub 311, and live wire is connected with spring.The other end of detonator 37 is connected with detonating fuse 312 tight fits, and after energized, detonator 37 detonates, and simultaneously detonating fuse 312 is ignited, and the high temperature of the two generation, gases at high pressure ignite the igniting powder column in the core pipe, then the whole main charge of lighting are lighted.
As shown in Figure 5; Lighting main charge is the core tube type Pressure breaking bullet; The fastening certain thickness main charge 52 of lighting in core tube outside, core pipe Pressure breaking bullet 55 is threaded with core tube head 51, and the core tube head also is threaded with last drop handle; Priming post 54 in the core pipe 55, the connection between a plurality of Pressure breaking bullets connects with connector 53.
Like Fig. 6, interlayer works passing fire action with filling igniting powder columns 62 in the core pipe 61, and interlayer is identical with the connected mode of above-mentioned a plurality of Pressure breaking bullets with the connection between the core pipe.
As shown in Figure 7, the main charge structure adopts a plurality of annular grooves of processing on the powder column, makes the axially thick identical with radial combustion meat of powder column; Both increased the incipient combustion area; Improved the wink property sent out of burning again, guiding cushion rubber 76 has been housed in the main charge lower end of this Pressure breaking bullet, prevented that the main charge post from being damaged by collision in the process of going into the well; This guiding cushion rubber to the pressure break centering effect of upspringing, goes into the well whole Pressure breaking bullet with centralizer smoothly.
As shown in Figure 9, all lifting bail types of this Pressure breaking bullet connect and all adopt connecting bolt, nut to connect of main charge, and use dowel fixes, prevent to thread off.
Like Fig. 4, Fig. 7, shown in Figure 8, the material of centralizer 310, sealing-plug 33, guiding cushion rubber 76 is rubber.
Claims (5)
1. lifting bail type core pipe connecting with high energy gas fracture bomb; Comprise cable connector assembly [1], following drop handle assembly [3], light main charge assembly [4], interlayer with core-pipe subassembly [5], main charge assembly [6]; It is characterized in that: the anti-rod member [2] that burns is housed between cable connector assembly [1] and following drop handle assembly [3]; The anti-rod member [2] that burns adopts lifting bail type to be connected with cable connector assembly [1] and following drop handle assembly [3]; The anti-rod member [2] that burns can be formed by connecting on one or more anti-burning bars [22]; The anti-bar [22] that burns is that reinforcing bar with ￠ 6～14 bends and is shaped, and two reinforcing bars of certain-length are close between the drop handle at anti-burning bar two ends, and integrally welded; The anti-bar [22] that burns is gone up welding a plurality of sheaths [21]; Higher temperature line passes from the hole of sheath [21], and sheath [21] is the steel pipe of 5 millimeters of length, and described drop handle assembly [3] down is made up of drop handle [30], end cap [31], gland [32], sealing-plug [33], spring [34], insulating washer [35], housing [36], detonator [37], earthing screw [38], sealing ring [39], centralizer [310], crossover sub [311] and detonating fuse [312]; Insulating washer [35] is the stairstepping cylinder, and endoporus is the single order trapezoidal hole, and spring [34] is inserted in the ladder hole; Insert rear spring and will exceed ladder hole end face 2 millimeter, sealing-plug [33] is a copper round plug [313] that has annular protrusion, circle mandrel outer surface casting rubber-moulding; One end of circle plug is processed a through hole [316], penetrates higher temperature line, and the other end is reducing circular end surface [315]; This end face pressing spring [34] makes spring become compressive state, and the lead and the spring of detonator [37] are intertwined and connected; Another root lead is fixed on the crossover sub [311] with earthing screw [38]; Detonator [37] is connected with detonating fuse [312], and the length of detonating fuse is no more than the upper surface of lighting main charge, and the drop handle of cable connector assembly [13] is connected with connecting bolt [71], nut [72] with following drop handle [30] with the anti-bar [22] that burns; And, in through hole, penetrate pin [73] and prevent to thread off at the through hole that the screw head processing of connecting bolt [71] is justified.
2. a kind of lifting bail type core pipe connecting with high energy gas fracture bomb according to claim 1 is characterized in that processing screw thread [11] at the oral area of cable connector assembly [1], carries the Malong head thread of usefulness to be connected with cable, drop handle [13] and the welding of cable connector oral area.
3. a kind of lifting bail type core pipe connecting with high energy gas fracture bomb according to claim 1 is characterized in that interlayer with the interior priming post of core pipe [61] [62], and interlayer is a regular length with core pipe [61], can connect one or more core pipes.
4. a kind of lifting bail type core pipe connecting with high energy gas fracture bomb according to claim 1 is characterized in that in the junction of following drop handle assembly and crossover sub centralizer being housed, and the material of centralizer is a rubber.
5. a kind of lifting bail type core pipe connecting with high energy gas fracture bomb according to claim 1 is characterized in that described insulating washer [35] adopts phenolic aldehyde cotton laminated cloth rod to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101438136A CN101358519B (en) | 2007-08-02 | 2007-08-02 | Lifting bail type core pipe connecting with high energy gas fracture bomb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101438136A CN101358519B (en) | 2007-08-02 | 2007-08-02 | Lifting bail type core pipe connecting with high energy gas fracture bomb |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101358519A CN101358519A (en) | 2009-02-04 |
| CN101358519B true CN101358519B (en) | 2012-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007101438136A Active CN101358519B (en) | 2007-08-02 | 2007-08-02 | Lifting bail type core pipe connecting with high energy gas fracture bomb |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101788468A (en) * | 2010-03-03 | 2010-07-28 | 中国石油大学(华东) | Method for detecting toxic gases generated by high-energy gas fracture |
| CN105370258B (en) * | 2015-10-09 | 2018-01-19 | 湖北东神楚天化工有限公司 | Cracking method is made in a kind of explosion for improving oil and gas production |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2208098Y (en) * | 1994-04-18 | 1995-09-20 | 高长友 | Electric cable connecting non-shelled fracturing bullet |
| CN2224278Y (en) * | 1994-05-07 | 1996-04-10 | 黑龙江华安工业(集团)公司 | Coverless press-craking bombs connected by core tube |
| CN2308708Y (en) * | 1996-06-27 | 1999-02-24 | 高长友 | Sieving tube loaded fracturing pellet |
| RU2183741C1 (en) * | 2001-08-31 | 2002-06-20 | Падерин Михаил Григорьевич | Method of gas-hydraulic stimulation of formation |
| US6817298B1 (en) * | 2000-04-04 | 2004-11-16 | Geotec Inc. | Solid propellant gas generator with adjustable pressure pulse for well optimization |
-
2007
- 2007-08-02 CN CN2007101438136A patent/CN101358519B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2208098Y (en) * | 1994-04-18 | 1995-09-20 | 高长友 | Electric cable connecting non-shelled fracturing bullet |
| CN2224278Y (en) * | 1994-05-07 | 1996-04-10 | 黑龙江华安工业(集团)公司 | Coverless press-craking bombs connected by core tube |
| CN2308708Y (en) * | 1996-06-27 | 1999-02-24 | 高长友 | Sieving tube loaded fracturing pellet |
| US6817298B1 (en) * | 2000-04-04 | 2004-11-16 | Geotec Inc. | Solid propellant gas generator with adjustable pressure pulse for well optimization |
| RU2183741C1 (en) * | 2001-08-31 | 2002-06-20 | Падерин Михаил Григорьевич | Method of gas-hydraulic stimulation of formation |
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| CN101358519A (en) | 2009-02-04 |
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