CN1932429A - Bridge stuffing hard connecting impact type ignitor - Google Patents
Bridge stuffing hard connecting impact type ignitor Download PDFInfo
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- CN1932429A CN1932429A CN 200610104705 CN200610104705A CN1932429A CN 1932429 A CN1932429 A CN 1932429A CN 200610104705 CN200610104705 CN 200610104705 CN 200610104705 A CN200610104705 A CN 200610104705A CN 1932429 A CN1932429 A CN 1932429A
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- firing pin
- bridge
- caber
- stuffing
- plug
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Abstract
The invention discloses an impingement flame ignitor of the bridged-plug hard wired which is used for the transmission type bridged-plug bed ignition process of the vitta. The ignitor is made up of the mechanical impacting firing module which includes the caber and the striker module, and the fire production module. The input end is connected with the vitta and the output is connected with the bed cuff tools. The invention and the bed cuff tools are put into the object layer and fling the caber into the well from the well mouth along the vitta, so the caber impacts the striker to ignite and ignite the powder flask in the bed cuff tool to drive the bridged-plug to seal. It has the advantage of the cable bridged-plug bed cuff process and against the disadvantage of the block, the knot and the twine, so it can decrease the construction cost.
Description
Technical field
The invention belongs to oil, gas extraction operation field, relate generally to a kind of oil well, gas well packing device, relate in particular to a kind of igniter of oil conduit conveying type bridge plug seat seal apparatus.
Technical background
In the underground work of oil gas well, because of requirement of engineering, temporary transient or permanent closure is got up with a certain well section sometimes, makes oil well punish into two independent parts from packing, and the following well section of packing section no longer influences the operation of the above well section of packing section; And the above well section of packing section still can be carried out corresponding underground work, and oil, gas well are produced again.The most traditional packing operation is at packing section cementing plug.Since the seventies in 20th century, having occurred adopting with the powder burning is that the packer of power source is that bridging plug carries out this packing construction operation, and what present this operation was mostly adopted is the electric ignition mode, therefore is called as cable bridge obturating plug envelope technology.Cable bridge obturating plug envelope is directly to adopt cable that bridging plug and seat envelope instrument are transported to the down-hole target zone together, lights gunpowder by electric igniter, and the gas that produces with powder burning is power, drives this bridging plug and finishes the shutoff function.
Though it is simple that cable bridge obturating plug envelope technology has technology, advantages such as short construction period, the success rate of its construction and reliability are not ideal.Main cause is: 1. down-hole liquid is than great, and cable can cause because of being hampered in transferring the bridging plug process does over again; Bridging plug by under the cable in the oil of several kms, gas well, uncontrollable bridging plug of cable and seat envelope instrument are placed in the middle in transferring process, bridging plug and sleeve pipe be collision and friction constantly, makes bridging plug impaired and the influence seat seals a quality; 3. the diameter of bridging plug is relatively big, and the gap between the sleeve pipe is smaller, frequent and sleeve pipe collision and friction, stuck phenomenon can appear when serious, need to carry bridging plug and cause and do over again, put forward the risk that bridging plug exists cable to be broken on simultaneously, can be caused major break down in case cable breaks; 4. bridging plug is in following well operations, softer cable is stretching by the weight of bridging plug and seat envelope instrument, therefore the lowering velocity and the bridging plug of bridging plug are hampered, problem such as stuck all can cause the cable knotting automatically, cable is tied a knot and will be cut off cable often when serious, no matter its follow-up work is the power taking cable, still drags for the major break down that bridging plug all is an intractable.5. in the oil of earth formation complexity, gas well or when certain distortion takes place sleeve pipe, all can't implement cable bridge obturating plug envelope construction operation.
For solving the problem that exists in the cable bridge obturating plug envelope work progress, working out a kind of new bridge plug seat envelope construction technology at present is the hard Connection Block envelope of bridging plug technology.This construction technology is that to adopt oil pipe will be that the packer of power source is sent to the down-hole target zone with the powder burning, light the power gunpowder by the impacting type igniter simultaneously, the gas-powered packer of powder burning is that bridging plug is finished the shutoff function, and this construction technology also can be described as tubing transmission bridge plug seat envelope construction technology.Yet, realize that the matter of utmost importance of the hard Connection Block envelope of bridging plug construction technology is the research bridge stuffing hard connecting impact type ignitor.
Summary of the invention
The technical problem to be solved in the present invention is: at the non-electric ignition problem that realizes the hard Connection Block envelope of bridging plug construction technology, provide a kind of when bridging plug is transported to the down-hole target zone with a seat envelope instrument by oil pipe, can reliable ignition the grain of seat envelope instrument, guarantee that bridging plug finishes the impacting type igniter of plugging action.
For addressing the above problem, the present invention includes mechanical impact ignition assembly and priming system assembly; Described mechanical impact ignition assembly contains body, firing pin assembly, seal, has biography fire joint, the caber of axial flash hole; Described body is a cylindrical body, and its input has the external screw thread that is connected with oil pipe, and output has and passes the external screw thread that fiery joint is connected, and the middle part of body is provided with 2～3 radially clearance holes of conducting; Described firing pin assembly contains firing pin, firing pin cover, pressure-bearing pin, and firing pin one end has end cap, and the other end has needle point, and the middle part has pin hole and seal groove, and firing pin cover outer wall has seal groove and pin hole, and firing pin is fixed in the firing pin cover by the pressure-bearing pin; Described firing pin cover is packed in the endoporus of described body, and the fiery joint of described biography is connected with the output of body, and described seal is installed in the corresponding seal groove; Described caber is the rhabodoid that an end has lance; Described priming system assembly is placed in the described firing pin cover, and its igniter cap is adjacent with described striker head and align.
According to the present invention, in the input of described body and the endoporus between the described clearance hole, be provided with one section aditus laryngis.
According to the present invention, described priming system assembly comprises igniter cap, ignition cap, stick, and igniter cap and ignition cap are contained in the ignitron, and ignitron and stick are contained in the igniting housing.
According to the present invention, when normal temperature used, described stick was selected black powder for use; When high temperature used, described stick was selected aviation high energy gas propellant for use, and its main chemical compositions is NH
4ClO
4
The present invention will with bridging plug, seat envelope instrument and oil pipe are formed bridge plug seat tube sealing string jointly, when the present invention transfers to the target zone effect degree of depth with bridge plug seat tube sealing string after, caber is thrown in well from well head, after caber falls along oil pipe and passes body and shout mouth, the end cap of its lance bump firing pin, pressure-bearing pin in this utility machine bump ignition assembly is cut off, firing pin and caber move downward simultaneously, the needle point of firing pin pierces through the igniter cap of priming system assembly, the priming system assembly is got angry and is lighted grain in the envelope instrument, the high temperature and high pressure gas that the grain burning produces promotes seat envelope instrument, force bridging plug to be subjected to drawing and pressing down the effect of two power simultaneously, last lower slips and the distortion of caulking gum tube, being attached on the casing wall tightly, make the obstructed up and down of bridging plug, realize the purpose of bridge plug seat envelope.Compare with the electrically-fired bridge plug seat envelope of use construction technology, adopt the hard Connection Block envelope of bridging plug of the present invention construction technology not only to omit cable and near cable car, the engineering truck of ground well head, reduced production cost, and eliminated the electric hazards that electric product is arranged, improved the security and the reliability of bridge plug seat envelope.
Description of drawings
Fig. 1 is the composition schematic diagram of impacting type igniter of the present invention.
Fig. 2 is the structural representation of caber in the impacting type igniter shown in Figure 1.
Fig. 3 is the body construction schematic diagram of mechanical impact ignition assembly in the impacting type igniter shown in Figure 1.
Fig. 4 is the F-F cutaway view of Fig. 3.
Fig. 5 is the firing pin structural representation of mechanical impact ignition assembly in the impacting type igniter shown in Figure 1.
Fig. 6 be shown in the impacting type igniter mechanical impact get angry the firing pin nested structure schematic diagram of assembly.
The specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing and preferred embodiment.
As shown in Figure 1, the present invention includes mechanical impact ignition assembly and fiery top grade assembly two parts.Mechanical impact ignition assembly is made of body 1, firing pin 2, firing pin cover 3, pressure-bearing pin 4, the fiery joint 7 of biography, caber 14 and seal 12,13.Firing pin 2 is arranged in firing pin cover 3 and connects as one by pressure-bearing pin 4, and firing pin cover 3 is contained in the endoporus of body 1, passes the output that fiery joint 7 is threaded in body 1, and the priming system assembly is placed in the endoporus of firing pin cover, and its igniter cap 5 is adjacent with firing pin and align.Pressure-bearing pin 4 can select for use copper material or stainless steel to make.Pass the fiery joint 7 center flash hole that to have one section diameter be 9mm and adopt the fine finishining of 40CrMnMo high-quality steel to form.Sealing ring 12,13 selects for use nitrile rubber or fluorubber material to make and be placed in the corresponding seal groove.
According to shown in Figure 2, the caber 14 of the preferred embodiment of the present invention is the clava that adopts common iron processing, caber 14 1 ends are provided with conical fishing head, with fishing head next-door neighbour be the aditus laryngis 14A that one section diameter is 20mm, the other end of caber 14 is provided with the lance 14b of diameter 20mm, length 150～230mm.
According to Fig. 3, shown in Figure 4, the body 1 of the preferred embodiment of the present invention is a mechanical parts, is made by 40Cr steel material.The input 1B that it is connected with oil pipe is processed to the tubing thread of standard.Have the square clearance hole 1F of 3 40mm * 60mm at the middle part of body 1, the row's of being provided with aditus laryngis 1A in the endoporus between input and clearance hole, its diameter is 25～35mm, length is 5～8mm.The effect of aditus laryngis 1A is that the caber 14 that will fall from well head is set upright, to guarantee that caber 14 can strike on the firing pin 2 reliably.The effect of clearance hole 1F is that booties such as the silt particle in the oil pipe, corrosion are discharged in the sleeve pipe, and falls into the oil well bottom, thereby avoids booties such as silt particle, corrosion to stop up the aditus laryngis 1A of body 1, guarantees that caber 14 can strike firing pin 2, and the present invention is reliably got angry.
According to Fig. 5, shown in Figure 6, the firing pin 2 of the preferred embodiment of the present invention and firing pin cover 3 adopt machining moulding technology to make, and its material can be selected T8, T10 or 40Cr steel for use.The upper end of firing pin 2 is end cap 2A of diameter 20～26mm, is convenient to accept the energy that dashes of caber 14, and the lower end of firing pin 2 is needle point 2D of diameter 2mm, is convenient to pierce through igniter cap 5 and makes its ignition.On the middle part outer wall of firing pin 2 and firing pin cover 3, be respectively equipped with two circumferential seal groove 2B, the 3A that sealing ring 12,13 is installed, but also be shaped on assembling pressure-bearing pin 4 and diameter is pin hole 2C, the 3B of 4～5mm.
The priming system assembly of the preferred embodiments of the present invention is made of igniter cap 5, ignition cap 9, stick 8, ignitron 11 and ignitron housing 6.The material of ignitron housing 6 is metal LY11 or LY12 duralumin.The performance indications of igniter cap 5 are 200 ℃ of heatproofs, and 48 hours, 100% firing energy was the weight of 1.2Kg, and drop height is 35mm.Stick 8 is selected black powder for use in normal temperature impacting type igniter, select aviation high energy gas propellant in high temperature impacting type igniter for use, and its main chemical compositions is NH
4ClO
4Normal temperature impacting type igniter uses being no more than under 120 ℃ the environment temperature, and high temperature impacting type igniter uses being no more than under 200 ℃ the environment temperature.
The mechanism of the preferred embodiment of the present invention is: before the construction, the input of the preferred embodiment of the present invention is connected with oil pipe, the output that output promptly passes fiery joint 7 is connected with bridge plug seat envelope instrument.During construction, the preferred embodiment of the present invention is lowered in the oil well with oil pipe, after arriving target zone, throw from well head along oil pipe and to put caber 14, caber 14 moves downward with freely falling body, the lance 14B of caber 14 sets upright through the aditus laryngis 1A of body 1, strikes the end cap 2A of firing pin 2, cuts off pressure-bearing pin 4, firing pin 2 is moved downward, when the needle point 2D of firing pin 2 percussion cap 5, make igniter cap 5 ignition point burning-point igniter caps 9, stick 8 again ignites, stick 8 combustion flames are by passing the center flash hole of fiery joint 7, light the grain in the envelope instrument, the high temperature and high pressure gas that the grain burning produces promotes seat envelope instrument and finishes the operation of bridge plug seat envelope.
Claims (4)
1. bridge stuffing hard connecting impact type ignitor, comprise the priming system assembly, it is characterized in that: also comprise mechanical impact ignition assembly, described mechanical impact ignition assembly contains body [1], firing pin assembly, seal [12,13], has biography fire joint [7], the caber [14] of axial flash hole; Described body [1] is a cylindrical body, and its input [1B] has the external screw thread that is connected with oil pipe, and output has and passes the external screw thread that fiery joint [7] is connected, and the middle part of body [1] is provided with 2～3 radially clearance holes of conducting [1F]; Described firing pin assembly contains firing pin [2], firing pin cover [3], pressure-bearing pin [4], firing pin [2] one ends have end cap [2A], the other end has needle point [2D], the middle part has pin hole [2C] and seal groove [2B], firing pin cover [3] outer wall has seal groove [3A] and pin hole [3B], and firing pin [2] is fixed in the firing pin cover [3] by pressure-bearing pin [4]; Described firing pin cover [3] is packed in the endoporus of described body [1], and the fiery joint of described biography [7] is connected with the output of body [1], and described seal [13,12] all is positioned in the corresponding seal groove [2B, 3A]; Described caber [14] is the rhabodoid that an end has lance [14b]; Described priming system assembly is placed in the described firing pin cover [3], and its igniter cap [5] is adjacent with described striker head [2D] and align.
2. bridge stuffing hard connecting impact type ignitor according to claim 1 is characterized in that: be provided with one section aditus laryngis [1A] in the input [1B] of described body [1] and the endoporus between the described clearance hole [1F].
3. bridge stuffing hard connecting impact type ignitor according to claim 1 and 2, it is characterized in that: described priming system assembly comprises igniter cap [5], ignition cap [9], stick [8], igniter cap [5] and ignition cap [9] are contained in the ignitron [11], and ignitron [11] and stick [8] are contained in the igniting housing [6].
4. bridge stuffing hard connecting impact type ignitor according to claim 1 and 2 is characterized in that: when normal temperature used, described stick [8] was selected black powder for use; When high temperature used, described stick [8] was selected aviation high energy gas propellant for use, and its main chemical compositions is NH
4ClO
4
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610104705 CN1932429A (en) | 2006-10-09 | 2006-10-09 | Bridge stuffing hard connecting impact type ignitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610104705 CN1932429A (en) | 2006-10-09 | 2006-10-09 | Bridge stuffing hard connecting impact type ignitor |
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| Publication Number | Publication Date |
|---|---|
| CN1932429A true CN1932429A (en) | 2007-03-21 |
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ID=37878384
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610104705 Pending CN1932429A (en) | 2006-10-09 | 2006-10-09 | Bridge stuffing hard connecting impact type ignitor |
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| CN (1) | CN1932429A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110359873A (en) * | 2019-07-05 | 2019-10-22 | 中国石油天然气集团有限公司 | A kind of underground stub cable cutter and its application method |
| CN110982228A (en) * | 2019-11-28 | 2020-04-10 | 北方斯伦贝谢油田技术（西安）有限公司 | Power source for oil field bridge plug seat sealing and preparation method thereof |
| CN113153207A (en) * | 2021-06-11 | 2021-07-23 | 西南石油大学 | Packer driven by gas and packer setting method |
| CN117514104A (en) * | 2023-12-15 | 2024-02-06 | 中国矿业大学 | Mechanical impact type piezoelectric circulating ignition device for methane in-situ explosion |
-
2006
- 2006-10-09 CN CN 200610104705 patent/CN1932429A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110359873A (en) * | 2019-07-05 | 2019-10-22 | 中国石油天然气集团有限公司 | A kind of underground stub cable cutter and its application method |
| CN110982228A (en) * | 2019-11-28 | 2020-04-10 | 北方斯伦贝谢油田技术（西安）有限公司 | Power source for oil field bridge plug seat sealing and preparation method thereof |
| CN113153207A (en) * | 2021-06-11 | 2021-07-23 | 西南石油大学 | Packer driven by gas and packer setting method |
| CN117514104A (en) * | 2023-12-15 | 2024-02-06 | 中国矿业大学 | Mechanical impact type piezoelectric circulating ignition device for methane in-situ explosion |
| CN117514104B (en) * | 2023-12-15 | 2024-05-17 | 中国矿业大学 | Mechanical impact type piezoelectric circulating ignition device for methane in-situ explosion |
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