CN104076388A - Device for activating mud gun focus along with drilling and technology method - Google Patents
Device for activating mud gun focus along with drilling and technology method Download PDFInfo
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- CN104076388A CN104076388A CN201410249573.8A CN201410249573A CN104076388A CN 104076388 A CN104076388 A CN 104076388A CN 201410249573 A CN201410249573 A CN 201410249573A CN 104076388 A CN104076388 A CN 104076388A
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Abstract
The invention discloses a device for activating a mud gun focus along with drilling and a technology method, and belongs to the technical field of geophysical exploration. Drilling machines are arranged on the two sides of a bog carrying base plate, and spiral well drilling or mud well drilling or percussion drilling can be adopted; a mud gun is fixed in a hollow drill, the drill is provided with an air outlet in the air outlet of the mud gun, the mud gun is placed underground in a sinking mode during well drilling, and after activation, the mud gun can be moved by lifting the drill; a rotation drill rod is provided with an electrical slip ring, and the rotation drill rod, the drill and the mud gun can be connected with a static air compressor system and a gun control system; the outer end face of the top of a drilling rig is fixedly provided with a rotation stopping rod, and therefore continuous rotation of the electrical slip ring is limited; the air compressor system is installed and fixed in the middle of the upper plane of the bog carrying base plate through a bolt, the gas displacement of an air compressor is 1 m<3>/min, and the highest pressure is 5,000 psi; the gun control system is fixedly installed inside a cab of the bog carrying base plate.
Description
Technical field
The present invention relates to one and excite mud gun epicenter device and process with brill, belong to geophysical exploration technology field.
Background technology
Land petroleum prospecting at present is mainly used vibroseis and well big gun explosive as excitaton source, the waters that is greater than 3m in the depth of water is used air gun source as excitaton source, and in mutual area, land and water and the marsh land of the 0-1.5 rice depth of water, because vibroseis and air gun ship cannot travel and pass through, can only adopt explosive, this just additionally needs corresponding rig, the equipment such as transport, construction cost is higher, and there are the following problems: the feature of environmental protection is poor, potential safety hazard is more, and do not allow to use explosive in some regional local governments or oily company, cause and there is no suitable excitaton source in these areas, the corresponding blank that also becomes of exploration construction method.
Abroad air gun manufacturer has developed the mud rifle that can excite in mud, but only limits to product, and application does not succeed.Also the application that has domestic and international associated companies to carry out air gun and mud rifle is expanded research, is substantially divided into two kinds: a kind of is air gun is placed in to the enclosure space of the media such as a filled with water and becomes land air gun; Exactly air gun head is made to cone in addition, vertically air gun is pressed into underground by means such as machineries.Due to air gun on ground or buried depth more shallow, seismic event can not pass effectively down, all fails to be applied to actual production.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides one and excite mud gun epicenter device and process with brill.Utilize air gun environmental protection, efficient etc. feature, study and a set ofly excite mud gun epicenter system and technology with brill, in the time of drilling well, mud rifle can be followed drilling tool and synchronously be pierced to set and excite the degree of depth, excite subsequently, energy is easy to down pass, and replaces explosive, meets the environmental protection exploration requirement of 0-1.5m Very Shallow Water region and marsh land.
One excites mud gun epicenter device with brill, comprise marsh carring chassis, air compressor system, rig, guide pipe, drilling tool assembly, rifle control system, wherein rig comprises drilling cramp, pressurization lift cylinder, planker, clamper, unit head, motor, and drilling tool assembly comprises drilling tool, mud rifle, drilling rod, dog link, electric slip ring, flange;
Rig is arranged in the both sides of marsh carring chassis, can adopt spiral drilling well, mud drilling or percussive drilling;
Mud rifle is fixed on the drilling tool inside of hollow, and drilling tool offers gas outlet equally at mud rifle gas outlet place, in drilling well, mud rifle sinking is extremely underground, after exciting, carries brill and can move;
On the drilling rod of rotation, electric slip ring is installed, the drilling rod of rotation, drilling tool, mud rifle and static air compressor system and rifle control system can be coupled together;
On the outer face, top of drilling cramp, be fixed with dog link, thus the continuous rotation of restriction electric slip ring;
Air compressor system is fixed on the centre position of the upper plane of marsh carring chassis by bolt, the air capacity of air compressor machine is 1m
3/ min, top pressure is 5000psi; Rifle control system is fixed on the pilothouse inside of marsh carring chassis;
4 rigs are fixed on respectively the both sides of marsh carring chassis by bearing pin, the rig front and back position of the left and right correspondence 100mm that mutually staggers.
Rig comprises drilling cramp, pressurization lift cylinder, planker, clamper, unit head and motor, motor is fixed on the power intake of unit head upper end, unit head links together by two small clevis pin with head and planker, and there is dovetail groove planker both sides, can slide up and down along the guide rail of drilling cramp; Clamper is fixed on drilling cramp guide rail bottom; Pressurization lift cylinder is arranged on the centre position of drilling cramp, and upper and lower two ends are clamped by two pressing plates of drilling cramp, and pressurization lift cylinder drives planker and drives unit head to move up and down.
Drilling tool assembly comprises drilling tool, mud rifle, drilling rod, dog link, electric slip ring and flange, and mud rifle external diameter is identical with drilling tool internal diameter, and fixes by two limiting plates of drilling tool inside, on the housing of drilling tool in the position, gas outlet of mud rifle a corresponding gas outlet that offers; Drilling rod is connected with drilling tool by bolt, and run of steel is m, and drilling rod upper end is provided with flange, and electric slip ring is arranged on by bolt on the upper surface of flange; Drilling tool assembly passes from the center pit of unit head and clamper, and is alternately clamped by the two;
Guide pipe is fixed on outside the upper end of drilling cramp on side plane, parallel with drilling cramp, the continuous rotation of restriction electric slip ring.
Drilling tool intracavity diameter is 200mm, and its spiral external diameter is 400mm.
One excites mud gun epicenter process with brill, in the time that mud gun epicenter arrival design excites shot point, handles rig and carries out drilling well, and mud rifle is placed in shaft bottom by Synchronous Radio; In this process, air compressor system is started working to mud rifle air feed, in the time that instrument etc. is ready, starts rifle control system and blows out, and blows out completely, promotes drilling tool assembly or mud rifle, carries out the construction of next shot point.
Advantage of the present invention is that mud rifle is placed among drilling tool, can be easily by mud rifle sinking in the underground darker degree of depth, and mud rifle has enough soft spaces around, is beneficial to the release of pressure-air energy, and the generation of seismic event and passing down.
Brief description of the drawings
When considered in conjunction with the accompanying drawings, by the detailed description with reference to below, can more completely understand better the present invention and easily learn wherein many advantages of following, but accompanying drawing described herein is used to provide a further understanding of the present invention, form a part of the present invention, schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention, as schemed wherein:
Fig. 1 is that knot of the present invention excites mud gun epicenter system structure schematic diagram with brill.
Fig. 2 is drill configuration schematic diagram of the present invention.
Fig. 3 is drill configuration schematic diagram of the present invention.
Fig. 4 is drilling tool assembly structure schematic diagram of the present invention.
Below in conjunction with drawings and Examples, the present invention is further described.
Embodiment
Obviously the many modifications and variations that, those skilled in the art do based on aim of the present invention belong to protection scope of the present invention.
Embodiment 1: as shown in Figure 1, Figure 2, Figure 3 and Figure 4, one excites mud gun epicenter device and process with brill, by combined to mud rifle and drilling technique, in drilling well by mud rifle sinking in set depth, excite subsequently, energy is easy to down pass, and replaces explosive, meets the green exploration requirement of 0-1.5m Very Shallow Water region and marsh land.
One excites mud gun epicenter device with brill, mainly comprises carriage chassis, mud rifle, air compressor system, rifle control system, borer system, drilling tool, drilling rod, electric slip ring, guide pole and connects accordingly tracheae and cable etc.
Carriage chassis has larger buoyancy deposit and handling capacity, can select dress float tank chain rail formula, wheeled and crawler type marsh and amphibious carriage chassis.
Borer system comprises drilling cramp, pressurization lift cylinder, rotary power head, clamper etc., and drilling cramp is installed on carriage chassis platform outside, and pressurization lift cylinder, rotary power head, clamper are installed on drilling cramp.Determine mud rifle quantity and capacity according to energy requirement, mud rifle is mounted in the middle of the drilling tool of hollow, on drilling tool shell, be welded with helical blade, drilling tool head is provided with the drill bit that adapts to Different Strata, on drilling tool housing in the corresponding gas outlet that offers, position, mud rifle gas outlet, do not affect the release of mud rifle air chamber mesohigh air, the drilling tool drilling rod elongated with is connected, and in drilling process, changes drilling rod without connecing.Borer system has the function such as rotation and pressurization lifting, and when work, rig steps up the actions such as drilling rod realization rotation, lifting, excites stratum thereby drive drilling tool and mud drill gun to enter.
The rotor-end of electric slip ring is fixed on drilling rod top, and rotor-end has gas joint and cable plug, is connected respectively by tracheae with cable with the air intake opening of mud rifle with solenoid valve, and tracheae and cable, in the middle of drilling rod, will be synchronized with the movement with drilling rod.The stator terminal of electric slip ring also has gas joint and cable plug, be connected with rifle control system with air compressor system with cable by tracheae respectively, on the stator of electric slip ring, dog link is installed simultaneously, and guide pole is installed on drilling cramp, it is the continuous rotation of electric slip ring stator that guide pole has limited dog link, and its slewing area is less than a circle.The gas joint of electric slip ring stator terminal and cable plug are communicated with therein with gas joint and the cable plug of rotor-end, have realized being communicated with of mud rifle of static air compressor system and rifle control system and rotation.
Air compressor system, rifle control system etc. are all fixed on the platform of carriage chassis, and air compressor system is carried pressurized air to mud rifle, and opening of rifle control system control mud rifle is quick-fried.
Mud rifle is followed drilling tool and is reached after predetermined depth, can start rifle control system and excite, and excites rear lifting drilling tool (mud rifle) to move.
Embodiment 2: as shown in Figure 1, Figure 2, Figure 3 and Figure 4, one excites mud gun epicenter device and process with brill;
Air compressor system 2 is fixed on the centre position of the upper plane of marsh carring chassis 1 by bolt, the air capacity of air compressor machine 2 is 1m
3/ min, top pressure is 5000psi.Rifle control system 6 is fixed on the pilothouse inside of marsh carring chassis 1.
4 rigs 3 are fixed on respectively the both sides of marsh carring chassis 1 by bearing pin, rig 3 front and back positions of the left and right correspondence 100mm that mutually staggers.
Rig 3 comprises drilling cramp 7, pressurization lift cylinder 8, planker 9, clamper 10, unit head 11 and motor 12, motor 12 is fixed on the power intake of unit head 11 upper ends, unit head 11 links together by two small clevis pin with head and planker 9, there is dovetail groove planker 9 both sides, can slide up and down along the guide rail of drilling cramp 7.Clamper 10 is fixed on drilling cramp 7 guide rails bottom.Pressurization lift cylinder 8 is arranged on the centre position of drilling cramp 7, and upper and lower two ends are clamped by two pressing plates of drilling cramp 7, and pressurization lift cylinder 8 drives planker 9 and drives unit head 11 to move up and down.
Drilling tool assembly 5 comprises drilling tool 13, mud rifle 14, drilling rod 15, dog link 16, electric slip ring 17 and flange 18, and drilling tool 13 intracavity diameters are 200mm, and its spiral external diameter is 400mm.Mud rifle 14 external diameters are identical with drilling tool 13 internal diameters, and fix by two limiting plates of drilling tool 13 inside, correspondingly in the position, gas outlet of mud rifle 14 on the housing of drilling tool 13 offer 4 gas outlets.Drilling rod 15 is connected with drilling tool 13 by bolt, and run of steel is 6m, and drilling rod upper end is provided with flange 18, and electric slip ring 17 is arranged on the upper surface of flange 18 by bolt.Drilling tool assembly 5 passes from the center pit of unit head 11 and clamper 10, and is alternately clamped by the two.
Guide pipe 4 is fixed on outside the upper end of drilling cramp 7 on side plane, parallel with drilling cramp 7, the continuous rotation of restriction electric slip ring 17.
In the time that mud gun epicenter arrival design excites shot point, to handle rig 3 and carry out drilling well, 14, mud rifle is placed in shaft bottom by Synchronous Radio.In this process, air compressor system 2 is started working to mud rifle 14 air feed, in the time that instrument etc. is ready, starts rifle control system 6 and blows out, and blows out completely, promotes drilling tool assembly 5 (mud rifles 14), carries out the construction of next shot point.
Embodiment 3: as shown in Figure 1, Figure 2, Figure 3 and Figure 4, one excites mud gun epicenter device with brill; Comprise marsh carring chassis 1, air compressor system 2, rig 3, guide pipe 4, drilling tool assembly 5, rifle control system 6, wherein rig 3 comprises drilling cramp 7, pressurization lift cylinder 8, planker 9, clamper 10, unit head 11, motor 12, and drilling tool assembly 5 comprises drilling tool 13, mud rifle 14, drilling rod 15, dog link 16, electric slip ring 17, flange 18.
Rig 3 is arranged in the both sides of marsh carring chassis 1, can adopt spiral drilling well, mud drilling or percussive drilling.
Mud rifle 14 is fixed on drilling tool 13 inside of hollow, and drilling tool 13 offers gas outlet equally at mud rifle 14 gas outlet places, in drilling well, mud rifle 14 sinkings are extremely underground, after exciting, carries brill and can move.
On the drilling rod 15 of rotation, electric slip ring 17 is installed, the drilling rod of rotation 15, drilling tool 13, mud rifle 14 can be coupled together with static air compressor system 2 and rifle control system 6.
On the outer face, top of drilling cramp 7, be fixed with dog link 16, thus the continuous rotation of restriction electric slip ring 17.
As mentioned above, embodiments of the invention are explained, but as long as not departing from fact inventive point of the present invention and effect can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, within such variation is also all included in protection scope of the present invention.
Claims (5)
1. excite a mud gun epicenter device with brill, it is characterized in that; Comprise marsh carring chassis, air compressor system, rig, guide pipe, drilling tool assembly, rifle control system, wherein rig comprises drilling cramp, pressurization lift cylinder, planker, clamper, unit head, motor, and drilling tool assembly comprises drilling tool, mud rifle, drilling rod, dog link, electric slip ring, flange;
Rig is arranged in the both sides of marsh carring chassis, can adopt spiral drilling well, mud drilling or percussive drilling;
Mud rifle is fixed on the drilling tool inside of hollow, and drilling tool offers gas outlet equally at mud rifle gas outlet place, in drilling well, mud rifle sinking is extremely underground, after exciting, carries brill and can move;
On the drilling rod of rotation, electric slip ring is installed, the drilling rod of rotation, drilling tool, mud rifle and static air compressor system and rifle control system can be coupled together;
On the outer face, top of drilling cramp, be fixed with dog link, thus the continuous rotation of restriction electric slip ring;
Air compressor system is fixed on the centre position of the upper plane of marsh carring chassis by bolt, the air capacity of air compressor machine is 1m
3/ min, top pressure is 5000psi; Rifle control system is fixed on the pilothouse inside of marsh carring chassis;
4 rigs are fixed on respectively the both sides of marsh carring chassis by bearing pin, the rig front and back position of the left and right correspondence 100mm that mutually staggers.
2. one according to claim 1 excites mud gun epicenter device with brill, it is characterized in that rig comprises drilling cramp, pressurization lift cylinder, planker, clamper, unit head and motor, motor is fixed on the power intake of unit head upper end, unit head links together by two small clevis pin with head and planker, there is dovetail groove planker both sides, can slide up and down along the guide rail of drilling cramp; Clamper is fixed on drilling cramp guide rail bottom; Pressurization lift cylinder is arranged on the centre position of drilling cramp, and upper and lower two ends are clamped by two pressing plates of drilling cramp, and pressurization lift cylinder drives planker and drives unit head to move up and down.
3. one according to claim 2 excites mud gun epicenter device with brill, it is characterized in that drilling tool assembly comprises drilling tool, mud rifle, drilling rod, dog link, electric slip ring and flange, mud rifle external diameter is identical with drilling tool internal diameter, and fix by two limiting plates of drilling tool inside, on the housing of drilling tool in the position, gas outlet of mud rifle a corresponding gas outlet that offers; Drilling rod is connected with drilling tool by bolt, and run of steel is m, and drilling rod upper end is provided with flange, and electric slip ring is arranged on by bolt on the upper surface of flange; Drilling tool assembly passes from the center pit of unit head and clamper, and is alternately clamped by the two;
Guide pipe is fixed on outside the upper end of drilling cramp on side plane, parallel with drilling cramp, the continuous rotation of restriction electric slip ring.
4. one according to claim 3 excites mud gun epicenter device with brill, it is characterized in that drilling tool intracavity diameter is 200mm, and its spiral external diameter is 400mm.
5. excite a mud gun epicenter process with brill, it is characterized in that, in the time that mud gun epicenter arrival design excites shot point, handling rig and carrying out drilling well, mud rifle is placed in shaft bottom by Synchronous Radio; In this process, air compressor system is started working to mud rifle air feed, in the time that instrument etc. is ready, starts rifle control system and blows out, and blows out completely, promotes drilling tool assembly or mud rifle, carries out the construction of next shot point.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410249573.8A CN104076388B (en) | 2014-06-06 | 2014-06-06 | Device for activating mud gun focus along with drilling |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410249573.8A CN104076388B (en) | 2014-06-06 | 2014-06-06 | Device for activating mud gun focus along with drilling |
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| CN104076388A true CN104076388A (en) | 2014-10-01 |
| CN104076388B CN104076388B (en) | 2017-02-15 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105319579A (en) * | 2014-06-26 | 2016-02-10 | 中石化石油工程地球物理有限公司胜利分公司 | Mud gun source gun drill integrated drilling mechanism |
| CN106842284A (en) * | 2017-03-03 | 2017-06-13 | 中国石油天然气集团公司 | The shooting on group method of mud gun epicenter drilling tool and mud gun epicenter |
| CN108375787A (en) * | 2018-03-02 | 2018-08-07 | 西南石油大学 | It is a kind of to bore the preceding nearly drill bit source pipe nipple detected for gas drilling |
| CN110579792A (en) * | 2019-10-25 | 2019-12-17 | 河北裕隆机械有限责任公司 | Carbon dioxide phase change controllable seismic source and construction method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4928783A (en) * | 1989-05-22 | 1990-05-29 | Exxon Production Research Company | Well borehole sound source |
| CN101131434A (en) * | 2006-08-23 | 2008-02-27 | 中国石油集团东方地球物理勘探有限责任公司 | Mud gun epicenter excitation system |
| US20140140173A1 (en) * | 2012-11-18 | 2014-05-22 | Schlumberger Technology Corporation | Land Seismic Devices, Systems and Methods |
| CN103995291A (en) * | 2014-05-28 | 2014-08-20 | 中国石油集团东方地球物理勘探有限责任公司 | Geophysical exploring device and method for transitional zone areas between bog and shallow beach sea |
| CN204065418U (en) * | 2014-06-06 | 2014-12-31 | 中国石油集团东方地球物理勘探有限责任公司 | One excites mud gun epicenter device with brill |
-
2014
- 2014-06-06 CN CN201410249573.8A patent/CN104076388B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4928783A (en) * | 1989-05-22 | 1990-05-29 | Exxon Production Research Company | Well borehole sound source |
| CN101131434A (en) * | 2006-08-23 | 2008-02-27 | 中国石油集团东方地球物理勘探有限责任公司 | Mud gun epicenter excitation system |
| US20140140173A1 (en) * | 2012-11-18 | 2014-05-22 | Schlumberger Technology Corporation | Land Seismic Devices, Systems and Methods |
| CN103995291A (en) * | 2014-05-28 | 2014-08-20 | 中国石油集团东方地球物理勘探有限责任公司 | Geophysical exploring device and method for transitional zone areas between bog and shallow beach sea |
| CN204065418U (en) * | 2014-06-06 | 2014-12-31 | 中国石油集团东方地球物理勘探有限责任公司 | One excites mud gun epicenter device with brill |
Non-Patent Citations (1)
| Title |
|---|
| 樊慧文等: "泥枪震源在地震勘探中的应用研究", 《物探装备》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105319579A (en) * | 2014-06-26 | 2016-02-10 | 中石化石油工程地球物理有限公司胜利分公司 | Mud gun source gun drill integrated drilling mechanism |
| CN105319579B (en) * | 2014-06-26 | 2017-11-03 | 中石化石油工程地球物理有限公司胜利分公司 | Gunlock structure under mud gun epicenter drill gun one drilling type |
| CN106842284A (en) * | 2017-03-03 | 2017-06-13 | 中国石油天然气集团公司 | The shooting on group method of mud gun epicenter drilling tool and mud gun epicenter |
| CN108375787A (en) * | 2018-03-02 | 2018-08-07 | 西南石油大学 | It is a kind of to bore the preceding nearly drill bit source pipe nipple detected for gas drilling |
| CN108375787B (en) * | 2018-03-02 | 2023-11-14 | 西南石油大学 | Near-bit seismic source nipple for detection before gas drilling |
| CN110579792A (en) * | 2019-10-25 | 2019-12-17 | 河北裕隆机械有限责任公司 | Carbon dioxide phase change controllable seismic source and construction method thereof |
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| Publication number | Publication date |
|---|---|
| CN104076388B (en) | 2017-02-15 |
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