CN86202123U

CN86202123U - Core state apparatus

Info

Publication number: CN86202123U
Application number: CN 86202123
Authority: CN
Inventors: 任义清; 郑云会; 袁业孚
Original assignee: GEOLOGICAL PROSPECTING TEAM ATTACHED TO KAILUAN MINE AFFAIRS BUREAU HEBEI
Current assignee: GEOLOGICAL PROSPECTING TEAM ATTACHED TO KAILUAN MINE AFFAIRS BUREAU HEBEI
Priority date: 1986-04-05
Filing date: 1986-04-05
Publication date: 1987-05-20

Abstract

The utility model relates to a core state apparatus used for prospecting and drilling, and the core state can be determined by a trace engraved by a photoelectric director connected with a directional coring device according to the preset direction on the core surface which is no wrenching in the hole. The photoelectric director is that the S pole of the compass needle is cut out for a section; when the needles rotate, only the N pole covers the small hole and cuts off the light source to make the photosensitive tube signal stop; the signal is passed to the mine by cables and displayed on the universal meter. The device keeps rotating horizontally within 45 DEG apical angle by the gravity of the heavy hammer, the needles point to the NS poles correctly, and the complete set of the device is sealed in the nonmagnetic stainless steel tube. The device can direct accurately in both straight holes and angled holes, the geologic structure can be evaluated correctly, and the workload of prospecting can be saved.

Description

Core state apparatus

The utility model belongs to the core occurrence instrument that exploratory bore-hole is used.

The prior art more approaching with the utility model be " electrical signal transfer wedge deflection tool " it be to adorn a special short tube leading the inclined tube bottom, in establish several electric leads can stube cables to well head.Carve a deep trouth at the bottom of the short tube in the circumference, establish two or several wire contact in the groove,, can free in deep trouth, roll along a rolling steel balls is arranged in the deep trouth.It is suitable that wedge deflection tool is adjusted at well head in advance, instantly the wedge deflection tool of hand-hole is under the condition of hole deviation, steel ball free is rolled to the base, distance between the contact on circumference base just is the diameter less than rolling steel balls, when steel ball was rolled between two contacts, promptly connection circuit passed on the well head universal meter through cable and shows Continuity signal, illustrates that steel ball is to the base, wedge deflection tool reaches directed purpose towards ideal orientation.

This kind orientation method can carry out orientation more accurately in inclined hole.But dip angle of hole is littler, and the directed degree of accuracy is also just poor.In straight hole, just can not carry out orientation with this kind method.

The original occurrence of core is for determining strike, and there is ocular effect aspects such as understanding tomography and various complex geological structures, are not resolved for many years.Drill in the plains region that past appears in nothing, in order to determine strike, promptly 3 constant inclinations are oblique will to play three borings at least.As run into special geological structures such as tomography, can only drill just can check on more.So increase the investigation and prospecting amount, the waste exploration expenditure is spun out the exploration duration.

The purpose of this utility model is:

1, no matter design is a kind of can both accurately directed instrument in straight hole still is inclined hole.

2, a kind of instrument that can accurately estimate geological structure, particularly complex geological structure of design.

3, a kind of precision height of design is easy and simple to handle, saves the instrument of investigation and prospecting amount.

Solution of the present utility model is: photoelectric directional instrument (Fig. 1) is made up of direction finder, sealing device, outer tube, universal meter.Direction finder is that the S utmost point with compass needle (25) cuts out one section, makes it extremely shorter than N, is wrapped with copper wire at S on extremely and makes its N, S utmost point balance.Needle has only the N utmost point just can cover aperture on the shell (12) when rotating, cut off the light source of spot light lamp bulb (14) directive aperture, at this moment photosensitive tube (7) signal ends, and by cable (20) down-hole photosensitive tube signal is passed to abovegroundly, shows with universal meter or indicator lamp.Electrical schematic is seen (Fig. 2), this moment the needle directed north, thereby reach directed purpose.Needle is installed on the shell (12) with screw (23) and thimble (24).Glass cover (15) and gland (13) are housed on it, and shell (12) links to each other with inner ring (11) with two screws, and inner ring (11) connects to form the universal horizontal frame with screw (10) and outer ring (9).Instrument makes it spend drift angles with interior flexible rotation and maintenance level 45 by the action of gravity of weight (6), to guarantee that needle correctly points to the NS utmost point.Steady nail (8) is used for limiting the rotation of compass level frame outer ring (9), and the steady nail (21) top with the position and the outer tube (5) that keep penetrating the light aperture is relative.A whole set of instrument is contained in the magnetism-free stainless steel outer tube (29) by seal cover (16,17,18), O type circle (26,27) plugs (28), gland (30), screw (31) sealing.(all metalworks on the photoelectric directional instrument are all made with no magnetic material).

The top connection of photoelectric directional instrument (19) is connected with drilling rod, and the bottom connects the directional coring apparatus of being made up of core barrel (4), corer (3), the disconnected device (2) of core card, indentation alloy sword (1) (Fig. 4).

Orientation is got the core operation: at first select the more complete and tangible formation condition of bedding, to be convenient to observation analysis bedding and original occurrence.In time catch the core bedding in the drilling process, when finding that bedding stops to creep into behind the rock stratum clearly.In confirming the hole, do not have under the situation of residual core, go out 200 millimeters core post, and guarantee that the core post is not completely cured and stay at the bottom of the hole with hand-hole subdrilling under the green bit.Then stopping to 0.5 meter more than the rock pillar in the hand-hole under the drilling rod that photoelectric directional instrument and directional coring apparatus are housed, at this moment slowly rotate drilling rod with pipe wrench, note watching universal meter or indicator lamp simultaneously, when the universal meter pointer return zero or indicator lamp when going out proof photoelectric directional instrument aperture covered by the N utmost point of needle, stop operating this moment and with drilling tool gently at the bottom of the hole, because of indentation alloy sword being fixed on before the S extreme direction of instrument in the hand-hole under the corer, so the vestige on the core post is exactly i.e. 180 degree of S extreme direction certainly.Core is measured various core occurrence data according to the angle between bedding inclination angle and the indentation after taking out.

The top connection of photoelectric directional instrument (19) is connected with drilling rod, the bottom is connected with the wedge deflection tool of band clamping device by the landing nipple (Fig. 3) of band scale, the O position of landing nipple is aimed at the steady nail (21) of photoelectric directional instrument, makes wedge deflection tool give elder generation and be connected with Xiao Ding with landing nipple by leading rake angle.Rotate drilling rod, when the universal meter pointer return zero or indicator lamp when going out the proof N utmost point cover aperture, transfer wedge deflection tool and cut off Xiao Ding this moment, wedge deflection tool promptly tightens with the borehole wall by the correct oblique orientation of leading, to reach the rat holing purpose.

Simple structure of the present utility model, cost is low, no matter can both be accurately directed in straight hole still is inclined hole, its orientation range is in 45 degree drift angles.Can also the core orientation data be foundation, the construction of accurate instruction complex geological structure, thus can obtain desired geologic information with less work amount and more shallow drilling construction.Also can correct hole deviation or bore branched hole, reach a hole and use more by giving the orientation degree of depth.It also has unique effect for water well drilling increases water yield.Well-known, the size of the well water yield depends on the size of crack, aquifer at boring surface, determines shaft bottom or borehole wall rock crack growth orientation with directional coring apparatus, just can bore branched hole along this orientation, increases water yield to enlarge the crack area.

Description of drawings:

Fig. 1 is the photoelectric directional instrument.Wherein (5) represent outer tube; (6) expression weight; (7) expression photosensitive tube; (8) expression is surely followed closely; (9) expression outer ring; (10) expression screw; (11) expression inner ring; (12) expression shell; (13) expression gland; (14) expression spot light lamp bulb; (15) expression lid; (16) expression seal cover; (17) expression seal cover; (18) expression seal cover; (19) expression top connection; (20) expression cable; (21) expression is surely followed closely; (22) expression shell; (23) expression screw; (24) expression thimble; (25) expression needle; (26) expression O type circle; (27) expression O type circle; (28) expression plug; (29) expression outer tube; (30) expression gland; (31) expression screw.

Fig. 2 is an electrical schematic.

Fig. 3 is a landing nipple.

Fig. 4 is a directional coring apparatus.Wherein (1) represents indentation alloy sword; (2) the disconnected device of expression core card; (3) expression corer; (4) expression core barrel.

Claims

1, a kind of core occurrence instrument is characterized in that the directional coring apparatus of being made up of core barrel, corer, the disconnected device of core card, indentation alloy sword in the connection of the lower end of photoelectric directional instrument.

2, by the described core occurrence of claim 1 instrument, it is characterized in that: wherein said photoelectric directional instrument is that the S utmost point with the compass needle cuts out one section, makes it extremely shorter than N, opens an aperture on shell, makes light source with spot light lamp bulb, the photosensitive tube received signal.

3, by claim 1,2 described core occurrence instrument, it is characterized in that: wherein said photoelectric directional instrument is contained in instrument on the level frame, and weight is installed on level frame, and a whole set of instrument sealing is contained in the non-magnetic stainless steel tube.