CN105041203A - Radiation well drilling process - Google Patents
Radiation well drilling process Download PDFInfo
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- CN105041203A CN105041203A CN201510383363.2A CN201510383363A CN105041203A CN 105041203 A CN105041203 A CN 105041203A CN 201510383363 A CN201510383363 A CN 201510383363A CN 105041203 A CN105041203 A CN 105041203A
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- vertical shaft
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- drill bit
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Abstract
The invention discloses a radiation well drilling process, which comprises construction of a vertical shaft and drilling of radial holes, wherein a guide drilling mast is vertically arranged, and is connected with a rotary drilling machine bit to downwardly rotatably dig and drill, a digging bucket is upwardly lifted after being filled, rotary drilling objects in the digging bucket are poured out, the vertical shaft is hoisted to put into a cement cylinder, and sandy gravels are put into the bottom portion of the vertical shaft. The guide drilling mast is connected with a drilling rod and a detection bit, a guide drilling machine drills, and the detection bit passes through the vertical shaft to continue drilling until the detection bit reaches a target to basset. The detection bit is dismounted, the drilling rod is connected with a screen pipe, the screen pipe is pulled back until being exposed from an original penetrating position, and the screen pipe is sheared. The radiation well drilling process molds a big diameter vertical shaft at one time by utilizing rotary drilling technology, a penetrated cement cylinder skeleton is a bamboo strip skeleton, and the vertical shaft cement cylinder is penetrated by adopting the guide drilling mast. Two radial holes are formed at one time during the construction process, and are pulled back to form by adopting flexible plastic pipes. The radiation well drilling process saves time and labor, does not need workers to descend a well, and is high in safety.
Description
Technical field
The present invention relates to a kind of shallow-layer radial drilling technology, constructing at sand-pebble layer shallow-layer radial of the fields such as especially a kind of existing agricultural, irrigation, without the need to the drilling technology of workman's underground work with regard to energy Cheng Jing.
Background technology
In the prior art, in shallow irrigation water resources development, radial has the features such as water yield of well is large, the life-span long, regulation and control shallow underground outlet capacity is strong, dewatering speed is fast, has good development prospect.Radial comprises the radiating aperture of collecting well and multiple level, and radiant tube refers to throws filter pipe into increase well yield in shaft bottom or the borehole wall by radiation direction, and collecting well is the construction plant of horizontal radiation pipe, is also to collect water source, installs the place of pumping equipment.
For in the radiant tube construction of sand-pebble layer, method conventional at present both at home and abroad adopts hydraulic jack to head into method, adopts hydraulic jack in conjunction with water under high pressure by direct for filter pipe jacking aquifer, or first sleeve pipe is headed into aquifer, sleeve pipe put into by filter pipe again, then extracts sleeve pipe.This method is simple to operate, but jacking length is less, and when particularly external water pressure is less, to head into the resistance that is subject to larger for radiant tube, and jacking length limited system, is no more than 10m usually.According to percussion revolution drilling method, radiant tube construction length can be increased.Radial space less (diameter about 3m), minitype motivation head ballistic work is little, and efficiency is low, and large-sized power area of bed is large, cannot be arranged on radiation pipe construction equipment.And the construction in current radiation hole is workman at underground construction, bad environments, inefficiency, poor stability.
If traditional sand-pebble layer radial is constructed, the major diameter collecting well that relates to adopts and revolves the modes such as excavation formula, dematron and creep into, and drilling cost is high, and pumping irrigation well construction is difficult to bear; If use traditional manually digging a well, or punching is grabbed and is crept into, and adopts to take out cylinder and fish for and bore quarrel, and deslagging method falls behind, and the performance parameter of rig itself limits stroke (i.e. drill bit height of drop) and puies forward Beijing South Maxpower Technology Co. Ltd's power in addition, so that its drilling efficiency is lower.
The present invention proposes a kind of vertical shaft and revolve the technical method scraping out well and guide digging construction radiating aperture, this technical elements yet there are no research and report at present.Probing aspect, the ground such as oil, geology and no-dig technique have some guide digging methods, but due to but due to hole structure, construction cost, docking calculation and space constraint, this method is inapplicable in well drilling well.Therefore, researching and developing a kind of without well construction under workman, the radial construction technology that improves working conditions, increase work efficiency, is the current technical issues that need to address.
Summary of the invention
For above-mentioned shortcoming and defect of the prior art, the object of the present invention is to provide a kind of without well construction under workman, the radial construction technology that improves working conditions, increase work efficiency.
The object of the invention is to be achieved through the following technical solutions:
Radiation well drilling technology, comprises the construction of vertical shaft and creeping into of radiating aperture, wherein:
To Construction of Silo step:
S1, vertically places directional drill mast, connects the downward rotary dig drilling of churning driven head, carries bucket and pours out revolving in bucket and dig thing on bucket is completely rear;
S2, revolves after having dug, and utilizes the vertical shaft of mast by merogenesis of rotary drilling rig, and cement tube well cementation is put in gradation lifting;
S3, silo bottom drops into sandy gravel;
Radiating aperture construction sequence:
S1, directional drill accesses drilling rod and detection drill bit;
S2, utilizes directional drill to pressurize and creeps into, until detection drill bit enters vertical shaft;
S3, detection drill bit continues to creep into through vertical shaft, bassets until detection drill bit reaches target;
S4, unloads detection drill bit, and connect screen casing on drilling rod;
S5, utilizes directional drill to return and drags screen casing, until screen casing exposes former place of burying;
S6, cuts off screen casing on the ground;
S7, lower cylindrical plug, then pumps into the sealing of certain cement.
Preferably, in the step S2 of To Construction of Silo, cement tube uses bamboo cane or corrosion resistant plastics as skeleton, prevents electromagnetic shielding.
Preferably, in radiating aperture work progress, before directional drill creeps into, in completed vertical shaft, put into detection instrument.
Preferably, in radiating aperture work progress, described detection drill bit is by creeping under the guide of detection instrument.
Preferably, in the step S2 of radiating aperture construction, detection is after drill bit enters into vertical shaft, got by detection instrument and is placed on and detects drill bit and bury and locate the vertical shaft another side position of symmetry.
Preferably, in the step S4 of radiating aperture construction, the screen casing be connected on drilling rod is the plastics screen casing that band is porose or stitch.
Preferably, return at the step S5 of radiating aperture construction and be pulled through in journey, dismantle the drilling rod being back to ground successively.
Compared with prior art, the embodiment of the present invention at least has the following advantages:
In the embodiment of the present invention, radiation well drilling technology utilizes rotary dig drilling technology one-shot forming major diameter vertical shaft, and avoiding conventional manual, to excavate efficiency low, the problem of poor stability; Under the cement tube skeleton that enters be bamboo cane skeleton, conventional cage of reinforcement can be prevented the influence of targeting signal; Under enter vertical shaft cement tube and adopt drilling machine mast, be different from the conventional shortcoming needing to configure crane, save equipment.2 radiating apertures are once formed in radiating aperture work progress; The completing of radiating aperture adopts flexible plastic pipe once to return to drag shaping, time saving and energy saving, and artificial without the need to going into the well, and safety is high.
Accompanying drawing explanation
Fig. 1 is that schematic diagram is crept in the radiating aperture of radiation well drilling technology of the present invention;
Fig. 2 is the structural representation of the screen casing of radiation well drilling technology of the present invention;
Fig. 3 is the partial enlarged drawing of Fig. 1;
Fig. 4 is that the vertical shaft of radiation well drilling technology of the present invention revolves and digs process schematic.
Detailed description of the invention
Below in conjunction with Fig. 1-Fig. 4 and embodiment, the invention will be further described, and following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
To Construction of Silo step: directional drill mast is vertically placed by (1), connects churning driven head 8 rotary dig drilling downwards, carries bucket and pour out sandy gravel soil layer etc. on bucket is completely rear; (2) after revolving and having dug, utilize the vertical shaft of mast by merogenesis of rotary drilling rig, cement tube well cementation is put in gradation lifting, and cement tube uses bamboo cane as skeleton, prevents reinforcing bar from affecting targeting signal; (3) silo bottom drops into certain sandy gravel, can consolidation silo bottom, and can play filtered water effect; (4) revolving the vertical shaft diameter dug is 1.5-3m, and the degree of depth is within 80m.
Radiating aperture construction sequence: (1) puts into detection instrument 5 in completed vertical shaft 3; (2) on directional drill 1, access drilling rod 2 and detection drill bit 6; (3) under the guide of detection instrument 5, utilize directional drill 1 to pressurize and creep into, until in detection drill bit 6 vertical shaft 3; (4) detection instrument 5 is got be placed on ground drill target and break ground place's B point; (5) continue to creep into until detect drill bit 6 and reach target and basset; (6) unload detection drill bit 6, and connect the screen casing 7 that band is porose or stitch; (7) utilize directional drill to drag screen casing 71 time, until screen casing exposes a former A place of burying, return and be pulled through continuous dismounting drilling rod 2 in journey; (8) cut off screen casing 7 on the ground, then the both ends open of screen casing 7 is filled in cylindrical plug post-grouting sealing.Then a pair radiating aperture 4 is constructed complete, continues lower a pair radiating aperture construction.
The above; be only the present invention's preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (7)
1. a radiation well drilling technology, is characterized in that, comprises the construction of vertical shaft and creeping into of radiating aperture, wherein:
To Construction of Silo step:
S1, vertically places directional drill mast, connects the downward rotary dig drilling of churning driven head, carries bucket and pours out revolving in bucket and dig thing on bucket is completely rear;
S2, revolves after having dug, and utilizes the vertical shaft of mast by merogenesis of rotary drilling rig, and cement tube well cementation is put in gradation lifting;
S3, silo bottom and the peripheral annular space of cement tube drop into sandy gravel;
Radiating aperture construction sequence:
S1, directional drill accesses drilling rod and detection drill bit;
S2, utilizes directional drill to pressurize and creeps into, until detection drill bit enters vertical shaft;
S3, detection drill bit continues to creep into through vertical shaft, bassets until detection drill bit reaches target;
S4, unloads detection drill bit, and connect screen casing on drilling rod;
S5, utilizes directional drill to return and drags screen casing, until screen casing exposes former place of burying;
S6, cuts off screen casing on the ground;
S7, fills in cylindrical plug at screen casing fracture, then pumps into cement sealing.
2. radiation well drilling technology according to claim 1, is characterized in that, in the step S2 of To Construction of Silo, cement tube uses bamboo cane or corrosion resistant plastics as skeleton, prevents electromagnetic shielding.
3. radiation well drilling technology according to claim 2, is characterized in that, in radiating aperture work progress, before directional drill creeps into, in completed vertical shaft, puts into detection instrument.
4. radiation well drilling technology according to claim 3, is characterized in that, in radiating aperture work progress, described detection drill bit is by creeping under the guide of detection instrument.
5. radiation well drilling technology according to claim 4, is characterized in that, in the step S2 of radiating aperture construction, detection is after drill bit enters into vertical shaft, is got by detection instrument and is placed on and detects drill bit and bury and locate the vertical shaft another side position of symmetry.
6. according to the arbitrary described radiation well drilling technology of claim 1-5, it is characterized in that, in the step S4 of radiating aperture construction, the screen casing be connected on drilling rod is the plastics screen casing that band is porose or stitch.
7. radiation well drilling technology according to claim 6, is characterized in that, returns and is pulled through in journey, dismantle the drilling rod being back to ground successively at the step S5 of radiating aperture construction.
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CN201510383363.2A CN105041203A (en) | 2015-07-02 | 2015-07-02 | Radiation well drilling process |
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CN201510383363.2A CN105041203A (en) | 2015-07-02 | 2015-07-02 | Radiation well drilling process |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10995563B2 (en) | 2017-01-18 | 2021-05-04 | Minex Crc Ltd | Rotary drill head for coiled tubing drilling apparatus |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1054463A (en) * | 1991-02-13 | 1991-09-11 | 北京大兴地基工程公司 | Radial that foundation dewatering is used and construction technology and equipment |
JPH09126773A (en) * | 1995-10-31 | 1997-05-16 | Sekisui Chem Co Ltd | Guiding device for underground excavating drill head |
CN102937001A (en) * | 2012-11-23 | 2013-02-20 | 中国水利水电科学研究院 | Well completion process of sandy cobble stratum radial well |
-
2015
- 2015-07-02 CN CN201510383363.2A patent/CN105041203A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1054463A (en) * | 1991-02-13 | 1991-09-11 | 北京大兴地基工程公司 | Radial that foundation dewatering is used and construction technology and equipment |
JPH09126773A (en) * | 1995-10-31 | 1997-05-16 | Sekisui Chem Co Ltd | Guiding device for underground excavating drill head |
CN102937001A (en) * | 2012-11-23 | 2013-02-20 | 中国水利水电科学研究院 | Well completion process of sandy cobble stratum radial well |
Non-Patent Citations (2)
Title |
---|
乌效鸣等: "《导向钻进与非开挖铺管技术》", 31 October 2004 * |
李炳平等: "水平定向钻进技术在浅层低渗透性含水层地下水开采中的试验研究", 《探矿工程(岩土钻掘工程)》 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10995563B2 (en) | 2017-01-18 | 2021-05-04 | Minex Crc Ltd | Rotary drill head for coiled tubing drilling apparatus |
US11136837B2 (en) | 2017-01-18 | 2021-10-05 | Minex Crc Ltd | Mobile coiled tubing drilling apparatus |
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Application publication date: 20151111 |