CN104165026A - Seismic exploration composite drilling tool and well drilling method - Google Patents
Seismic exploration composite drilling tool and well drilling method Download PDFInfo
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- CN104165026A CN104165026A CN201310184813.6A CN201310184813A CN104165026A CN 104165026 A CN104165026 A CN 104165026A CN 201310184813 A CN201310184813 A CN 201310184813A CN 104165026 A CN104165026 A CN 104165026A
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Abstract
The invention provides a seismic exploration composite drilling tool and a well drilling method, and belongs to the technical field of petroleum seismic exploration and coal field seismic exploration. A body comprises a middle rod driving assembly, an unearthed flange, a power head inner screw rod, a drill rid inner screw middle rod, a drill bit inner screw rod, a small alloy drill bit, a drill bit outer pipe, a drill rod outer pipe, a power head lower joint assembly, a power head middle shaft and an outer pipe driving assembly. The connecting relation among the parts is characterized in that the middle rod driving assembly is connected with the unearthed flange and the power head inner screw rod, the power head inner screw rod is connected with the power head middle shaft, the outer pipe driving assembly is connected with the unearthed flange, and the small alloy drill bit is arranged at the lower end of the body. According to the seismic exploration composite drilling tool and the well drilling method, coring well drilling and screw well drilling are integrated; the condition that in the coring well drilling process, when a hard formation is drilled, drillings gather on a coring opening, and coring cannot be conducted is avoided, and the impact crushing capacity of a coring drilling tool and the scraping effect of a screw drilling tool are achieved; through the right-handed rotation design and the left-handed rotation design of the drilling tool outer pipes and the inner screw rods, the upward movement relative speed of the drillings is increased, and the drillings are accelerated to move upward.
Description
Technical field
The present invention relates to a kind of seismic prospecting combination drill tool and boring method, belong to oil seismic exploration, coal seismic prospecting technical field.
Background technology
Loess tableland and the similarly guarantee of layer region seismic prospecting drilling well depth of pore forming are the key links that improves seismic acquisition imaging precision.Such area feature is: high slope, mountain is steep, and coombe spreads all over, and motor-driven drilling equipment cannot be gone up a hill.And drought and water shortage, stratum more complicated, soft or hard are alternately, and centre is mingled with mud, adhesive dry loess, rice glue mud and clay layer, therefore comparatively difficulty of such regional exploration drilling.
Because lack of water cannot adopt mud drilling technique; This area's conventional drilling method is core drill well and spiral drill drilling well.But core drill well is met slightly hard formation and is got the accumulation of core mouth drilling cuttings, cannot get core.Spiral boring method, due to borehole wall elasticity, soft, along with drilling depth increase, vibration strengthen, become well head increase, meet compared with scall, drilling cuttings fall, cannot on return; Meet gummy formation, stop up flight gap, flight does not have scraping action, creeps into difficulty.At present, Huangtuyuan area seismic prospecting construction adopts artificial luoyang spades, ensure construction speed by tactics of human sea, but this instrument runs into slip stone or constructional difficulties of old stratum, the wellbore construction degree of depth cannot ensure, therefore seismic acquisition imaging precision is affected.Drilling tool and boring method become the bottleneck of this type of regional drilling well.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of seismic prospecting combination drill tool and boring method, poly-core drill well and spiral drilling well are integrated, drilling cuttings upward velocity is accelerated in rotating design uniquely, simultaneously tool fragmentation of drilling tool and shaving effect, solve complicated Huangtuyuan area and a drilling well difficult problem for layer region similarly.
A kind of seismic prospecting combination drill tool, body comprises that king-rod drives assembly, unearthed flange, unit head inside spin bar, drilling rod inside spin king-rod, drill bit inside spin bar, primary alloy drill bit, drill bit outer tube, drilling rod outer tube, lower connector of power head assembly, unit head axis, outer tube to drive assembly, and Glais ring seals, ball ensures to rotate freely between inner and outer pipe;
Its annexation is: king-rod drives assembly to connect be unearthed flange and unit head inside spin bar, and unit head inside spin bar connects unit head axis, and outer tube drives assembly to be connected with unearthed flange, and primary alloy drill bit is in body lower end;
Unit head axis is connected by key with lower connector of power head assembly screw thread, and drilling rod outer tube upper end is threaded with lower connector of power head, and drilling rod outer tube lower end is connected with drill bit external pipe thread, and drilling rod inside spin bar upper end is flexibly connected with unit head inside spin bar four directions; Lower end is flexibly connected with drill bit inside spin bar four directions, between drill bit outer tube, drilling rod outer tube and its drilling rod inside spin king-rod, drill bit inside spin bar, there is respectively twice ball, ball packs into from the screwed hole of drill bit outer tube, drilling rod outer tube, block screwed hole with holding screw again, ensure between inside spin bar and outer tube relative to rotating freely; Glais ring is contained on drilling rod inside spin king-rod, drill bit inside spin bar, coordinates and plays sealing effectiveness respectively with drill bit outer tube, drilling rod outer tube.
A boring method for seismic prospecting combination drill tool, contains following steps;
Step 1., spud in before: assembling drilling rod and drill bit, then, drill bit outer tube is connected with drilling rod outer tube, drill bit inside spin bar is connected with drilling rod inside spin bar, primary alloy drill bit is connected with drill bit outer tube;
The flange that is unearthed is connected complete with unit head inside spin bar, then drives assembly bolt to be connected with outer tube, and unit head inside spin bar drives assembly to be connected with king-rod; Unit head axis drives assembly to be connected with outer tube;
Step 2., start when drilling well, lower connector of power head assembly is connected with unit head axis; Drilling rod outer tube is connected with lower connector of power head assembly, and drilling rod inside spin bar is connected with unit head inside spin bar;
Step 3., start rig rotation, pressurization drilling well, outer tube drives assembly to drive drilling rod outer tube, drill bit outer tube, the dextrorotation of primary alloy drill bit to creep into; In drilling cuttings dextrorotation, return to enter in drill bit inside spin bar and drilling rod inside spin bar left-handed and return; Enter unit head inside spin bar and return on left-handed, discharge by the soil outlet of the flange that is unearthed;
Step 4., first rod boring complete, and the first bar drill bar is connected with connector, transfers in hole, aperture, blocks first drilling rod upper end flat with fork, connects second drilling rod, successively until object well depth;
5. step unloads drilling rod and completes a bite well.
The present invention is mainly for a kind of seismic prospecting combination drill tool and the boring method of loess tableland and similarly layer region design.Main effect has four aspects:
1, this boring method is integrated core drill well and spiral drilling well.Avoid core drill well to meet slightly hard formation, get core mouth place drilling cuttings and assemble, the situation that cannot get core; Meanwhile, the chance scall drilling cuttings solving in spiral drilling well falls, can not on return, meet gummy formation flight gap blocked, creep into difficult problem;
2, drilling tool designs the impact grinding ability of core bit of both having, and has again a scraping action of spiral drill;
3, the right side of drilling tool outer tube and inside spin bar, left-handed design, making to return relative velocity on drilling cuttings increases, and in acceleration, returns;
4, drilling cuttings, by the gap between inside spin bar, outer pipe assembly, imports drilling rod intermediate bar by the flight of interior middle screw rod, discharges.Reduce the scene that conventional drilling drilling cuttings stirs up a cloud of dust.Alleviate the pollution to drilling implementer and equipment, be conducive to the raising of operating personnel's healthy and service life of equipment.
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 structural representation of the present invention.
Fig. 2 is structural representation of the present invention.
Fig. 3 is structural representation of the present invention.
Below in conjunction with drawings and Examples, the present invention is further described.
Detailed description of the invention
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: seismic prospecting combination drill tool structure and connected mode: as shown in Figure 1, comprise that king-rod drives assembly 1, be unearthed flange 2, unit head inside spin bar 3, drilling rod inside spin king-rod 4, drill bit inside spin bar 5, primary alloy drill bit 6, drill bit outer tube 7, drilling rod outer tube 8, lower connector of power head assembly 9, unit head axis 10, outer tube drive that assembly 11, the first Glais rings 100, the second Glais ring 101 seal, the first ball 102, the second ball 103 ensure to rotate freely between inner and outer pipe.
Its annexation is: king-rod drives assembly 1 to connect be unearthed flange 2 and unit head inside spin bar 3, and unit head inside spin bar 3 connects unit head axis 10, and outer tube drives assembly 11 to be connected with unearthed flange 2, and primary alloy drill bit 6 is in body lower end;
Unit head axis 10 is connected by key with lower connector of power head assembly 9 screw threads, drilling rod outer tube 8 upper ends are threaded with lower connector of power head 9, drilling rod outer tube lower end is threaded with drill bit outer tube 7, and drilling rod inside spin bar 4 upper ends are flexibly connected with unit head inside spin bar 3 four directions; Lower end is flexibly connected with drill bit inside spin bar 5 four directions, between drill bit outer tube 7, drilling rod outer tube 8 and its drilling rod inside spin king-rod 4, drill bit inside spin bar 5, there are respectively the first ball 102, the second ball 103 to pack into from the screwed hole of drill bit outer tube 7, the first ball 102 packs into from the screwed hole of drilling rod outer tube 8, block screwed hole with holding screw again, ensure between inside spin bar and outer tube relative to rotating freely.
The first Glais ring 100, the second Glais ring 101 are contained in respectively on drilling rod inside spin king-rod 4, drill bit inside spin bar 5, coordinate and play sealing effectiveness respectively with drill bit outer tube 7, drilling rod outer tube 8.
Medium and small structure alloy bit 6, for Different Strata, can be designed to different structure.The helical structure of drill bit outer tube 7 lower ends also can have different structure for Different Strata.
A kind of seismic prospecting combination drill tool and boring method, contain following steps;
1. before spudding in: i drilling rod and drill bit assembling are complete in Fig. 2: drilling rod and drill bit assembling itself is complete, and then, drill bit outer tube 7 is connected with drilling rod outer tube 8, and drill bit inside spin bar 5 is connected with drilling rod inside spin bar 4, and primary alloy drill bit 6 is connected with drill bit outer tube 7;
Primary alloy drill bit 6 connects drill bit inside spin bar 5 by clutch shaft bearing 18; Drill bit outer tube 7 connects drill bit inside spin bar 5; Drilling rod outer tube 8 is by the 3rd ball 104, the 3rd Glais ring 105 jointed rod inside spin bars 4, and drill bit outer tube 7 has observation port 17;
The unearthed flange 2 of ii is connected complete with unit head inside spin bar 3, then drives assembly 11 bolts to be connected with outer tube, and unit head inside spin bar 3 drives assembly 1 to be connected with king-rod; Unit head axis 10 drives assembly 11 to be connected with outer tube.
2., while starting drilling well, lower connector of power head assembly 9 is connected with unit head axis 10; Drilling rod outer tube 8 is connected with lower connector of power head assembly 9, and drilling rod inside spin bar 4 is connected with unit head inside spin bar 3.
3. start rig rotation, pressurization drilling well, outer tube drives assembly 11 to drive drilling rod outer tube 8, drill bit outer tube 7,6 dextrorotation of primary alloy drill bit in Fig. 2 to creep into; In drilling cuttings dextrorotation, return and enter drill bit inside spin bar 6 and drilling rod inside spin bar 4 Fig. 2 black linear regions are returned on left-handed; Enter unit head inside spin bar 3 and return on left-handed, discharge by the soil outlet of the flange that is unearthed;
4. first rod boring completes, and the first bar drill bar is connected with connector, transfers in hole, aperture, blocks first drilling rod upper end flat with fork, connects second drilling rod, successively until object well depth;
5. unload drilling rod and complete a bite well.
Embodiment 2: as shown in Figure 2 and Figure 3,
Drilling rod inside spin bar 4 connects drill bit inside spin bar 5; Primary alloy drill bit 6 connects drill bit inside spin bar 5 by clutch shaft bearing 18; Drill bit outer tube 7 connects drill bit inside spin bar 5; Drilling rod outer tube 8 is by the 3rd ball 104, the 3rd Glais ring 105 jointed rod inside spin bars 4, and drill bit outer tube 7 has observation port 17;
Drill bit outer tube 12 connects drill bit inside spin bar 13 by the 4th ball 19, the 4th Glais ring 16, and drill bit inside spin bar 13 connects drill bit inside spin bar by the second bearing 15, and drill bit inside spin bar connects turriform alloy bit 14;
Seismic prospecting combination drill tool and boring method,
One, the present invention produces, installs according to Fig. 1 form of structure.
Two, each functional part structure and performance thereof:
1, in structure, composite drill rod outer tube adopts male and female joint and intermediate bar welded construction, and external diameter is basic identical, and it is flat that two end joints are all milled with fork, adopts coarse pitch trapezoidal thread syndeton for ease of dismounting, and entirety is heat-treated.The rotation direction of outer tube is dextrorotation.
Between interior middle screw rod each several part, connecting is welded construction, and two ends are respectively outer four directions, interior four directions, lives and is connected with unit head inside spin bar and composite drill bit.
Between inside spin bar and outer tube, have ball to ensure relative to freely rotating, Glais ring plays sealing function.
The rotation direction of inside spin bar is left-handed, contrary with outer tube rotation direction.
2, composite drill bit outer tube each several part welded construction, outer tube diameter is not greater than lower end spiral part external diameter, ensures the flight scraping borehole wall, avoids the outer tube contact borehole wall.Inside spin bar each several part is welded construction, has ball to ensure relative to freely rotating between inside spin bar and outer tube, has one group of bearing to connect simultaneously and guarantees inside and outside parts coaxial rotating.
Inner and outer pipes rotation direction is contrary, outer tube dextrorotation, and interior middle screw rod is left-handed.
Outer tube wall peep hole, convenient observation, adjustment bearing are installed and duty.
The right side of the outer tube of combination drill tool and inside spin bar, left-handed to design, making to return relative velocity on drilling cuttings increases, and in acceleration, returns, and avoids stopping up helical blade gap; Outer tube design is equivalent to the outer tube of core bit, has again an effect of spiral drilling well; The spiral of inside spin bar has avoided core drill well to meet slightly hard formation, gets core mouth place drilling cuttings and builds up, the situation that cannot get core; Meanwhile, solve in spiral drilling well and meet scall drilling cuttings, can not on return, meet gummy formation flight gap blocked, creep into difficult problem; Inner and outer pipe design, drilling cuttings is discharged by the gap between inner and outer pipes, reduces flying dust and pollutes.Reduce dust pollution in drilling process.
Medium and small structure alloy bit 6, for Different Strata, can be designed to different structure.The helical structure of drill bit outer tube 7 lower ends also can have different structure for Different Strata.
This drill bit connected mode is with Fig. 1 drill bit, and just the spiral part of outer tube 1 is not installed alloy block, and turriform alloy bit is applicable to harder stratum.Turriform alloy bit has punching and scrapes effect.
Change different drill bits according to stratum characteristic, therefore, boring method of the present invention is used in Different Strata exploration drilling.
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 (2)
1. a seismic prospecting combination drill tool, it is characterized in that body comprises that king-rod drives assembly, unearthed flange, unit head inside spin bar, drilling rod inside spin king-rod, drill bit inside spin bar, primary alloy drill bit, drill bit outer tube, drilling rod outer tube, lower connector of power head assembly, unit head axis, outer tube to drive assembly, Glais ring seals, ball ensures to rotate freely between inner and outer pipe;
Its annexation is: king-rod drives assembly to connect be unearthed flange and unit head inside spin bar, and unit head inside spin bar connects unit head axis, and outer tube drives assembly to be connected with unearthed flange, and primary alloy drill bit is in body lower end;
Unit head axis is connected by key with lower connector of power head assembly screw thread, and drilling rod outer tube upper end is threaded with lower connector of power head, and drilling rod outer tube lower end is connected with drill bit external pipe thread, and drilling rod inside spin bar upper end is flexibly connected with unit head inside spin bar four directions; Lower end is flexibly connected with drill bit inside spin bar four directions, between drill bit outer tube, drilling rod outer tube and its drilling rod inside spin king-rod, drill bit inside spin bar, there is respectively twice ball, ball packs into from the screwed hole of drill bit outer tube, drilling rod outer tube, block screwed hole with holding screw again, ensure between inside spin bar and outer tube relative to rotating freely; Glais ring is contained on drilling rod inside spin king-rod, drill bit inside spin bar, coordinates and plays sealing effectiveness respectively with drill bit outer tube, drilling rod outer tube.
2. a boring method for seismic prospecting combination drill tool, is characterized in that containing following steps;
Step 1., spud in before: assembling drilling rod and drill bit, then, drill bit outer tube is connected with drilling rod outer tube, drill bit inside spin bar is connected with drilling rod inside spin bar, primary alloy drill bit is connected with drill bit outer tube;
The flange that is unearthed is connected complete with unit head inside spin bar, then drives assembly bolt to be connected with outer tube, and unit head inside spin bar drives assembly to be connected with king-rod; Unit head axis drives assembly to be connected with outer tube;
Step 2., start when drilling well, lower connector of power head assembly is connected with unit head axis; Drilling rod outer tube is connected with lower connector of power head assembly, and drilling rod inside spin bar is connected with unit head inside spin bar;
Step 3., start rig rotation, pressurization drilling well, outer tube drives assembly to drive drilling rod outer tube, drill bit outer tube, the dextrorotation of primary alloy drill bit to creep into; In drilling cuttings dextrorotation, return to enter in drill bit inside spin bar and drilling rod inside spin bar left-handed and return; Enter unit head inside spin bar and return on left-handed, discharge by the soil outlet of the flange that is unearthed;
Step 4., first rod boring complete, and the first bar drill bar is connected with connector, transfers in hole, aperture, blocks first drilling rod upper end flat with fork, connects second drilling rod, successively until object well depth;
5. step unloads drilling rod and completes a bite well.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310184813.6A CN104165026B (en) | 2013-05-17 | 2013-05-17 | A kind of seismic prospecting combination drill tool and boring method |
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| CN201310184813.6A CN104165026B (en) | 2013-05-17 | 2013-05-17 | A kind of seismic prospecting combination drill tool and boring method |
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| CN104165026B CN104165026B (en) | 2016-12-28 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109025809A (en) * | 2018-10-11 | 2018-12-18 | 李广信 | More power guide position linkage combination drill tools, preparation method and pile-type |
| CN109799110A (en) * | 2018-12-18 | 2019-05-24 | 陕西迈拓克能源科技有限公司 | A kind of geological exploration instrument with soil sample function |
| WO2019196159A1 (en) * | 2018-04-09 | 2019-10-17 | 王瑞奇 | Drill speeder and drilling device |
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| CN104165026B (en) | 2016-12-28 |
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