CN110648379A - Automatic drawing method for rock core geophysical prospecting logging curve of copper mine geological drilling - Google Patents

Automatic drawing method for rock core geophysical prospecting logging curve of copper mine geological drilling Download PDF

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CN110648379A
CN110648379A CN201910834431.0A CN201910834431A CN110648379A CN 110648379 A CN110648379 A CN 110648379A CN 201910834431 A CN201910834431 A CN 201910834431A CN 110648379 A CN110648379 A CN 110648379A
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point
core
projection
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祝洪涛
王良玉
刘洋
张明林
黄笑
翁海蛟
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Nuclear Industry Brigade 243
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Abstract

The invention discloses an automatic drawing method of a rock core geophysical prospecting logging curve of a copper ore geological drilling, which comprises the following steps: preparing a drill core geophysical prospecting record database; calculating the depth of a measuring point; setting a projection scale and a projection starting point position; and drawing a projection curve. The drill core geophysical prospecting record curve has the following advantages: 1. the operation is simple and convenient; 2. automatic drawing is realized; 3. the drawing is digitalized and is convenient to store; 4. the working efficiency is improved. The method is suitable for drawing various drilling core recording curves, can input data, automatically draws the recording curves, and greatly improves the working efficiency.

Description

Automatic drawing method for rock core geophysical prospecting logging curve of copper mine geological drilling
Technical Field
The invention belongs to a method for drawing a rock core geophysical prospecting record curve of a drill hole in copper ore geological exploration, and particularly relates to an automatic drawing method for the rock core geophysical prospecting record curve of the copper ore geological drill hole.
Background
In the copper ore geological exploration process, the drilling core geophysical prospecting record curve is drawn by manual projection, and the method has the following defects: 1. the projection position is not accurate, and the error is large; 2. a great deal of time and labor are consumed, and the efficiency is low; 3. the paper picture is not convenient to be compared and called because the paper picture is filed without electronic data. Therefore, the method for automatically drawing the geophysical prospecting recording curve of the drill core is developed, the traditional manual drawing is replaced, and the manpower is saved and the efficiency is improved.
Disclosure of Invention
The invention aims to provide an automatic drawing method of a geophysical prospecting logging curve of a copper ore geological drilling core, which can realize the automatic drawing of the geophysical prospecting logging curve of the drilling core, greatly reduce the labor intensity, improve the efficiency of drawing the geophysical prospecting logging curve of the drilling core, enable the geophysical prospecting logging data of the drilling core to be drawn according to the data and realize the free calling and comparison of the geophysical prospecting logging curve.
The technical scheme of the invention is as follows: a method for automatically drawing a geophysical prospecting logging curve of a rock core of a copper mine geological drilling comprises the following steps,
step 1: preparing a drilling core geophysical exploration record database which comprises a recurrent n and a recurrent hole depth stop hnPosition a of the next measurement pointnmLength of the second corenAnd the measured value Cnm；
Step 2: according to the depth b of the core bottom of the rocknAnd the depth of the secondary hole is stopped hnArranging rock cores in an equal mode, and calculating measuring point depth Hnm；
And step 3: setting borehole geophysical exploration logging data (H)nm，Cnm) Mapping scale for corresponding position (Y, X) on the plane, calibrating projection start point position (Y) on the plane0，X0)；
And 4, step 4: drawing the corresponding drilling geophysical exploration record data on a computer from the starting depth to the ending depth to the corresponding position on a screen section by section, namely, finishing coordinates (H)nm，Cnm) Mapping to planar coordinates (Y, X), depth range and measurement left and right scale when plotted on a planeAre determined to be respectively [ H0，Hmax]And [ Cmin，Cmax]。
The database in the step 1 supports storage and spatial indexing and can be freely called.
The step 1 comprises the following steps of,
(1) designing a drilling rock core record database table based on an Access database structure, wherein the database comprises a recurrent n and a recurrent hole depth stop hnPosition a of the next measurement pointnmLength of the second corenAnd the measured value Cnm；
(2) And adding the drill core geophysical prospecting record data to the table of the drill core record database.
The step 2 comprises the following specific steps of,
(1) according to the depth b of the core bottom of the rocknAnd the depth of the secondary hole is stopped hnArranging the cores in an equal manner;
(2) the measuring point depth calculation formula is as follows:
Hni＝hn-ln+ani(0≤ani≤ln)
wherein Hnm: the drilling depth of the ith measuring point of the nth layer; h isn: the nth secondary hole is deeply stopped; ln: the nth time of core length; a isni: the ith measuring point position is measured for the nth time; cni: the measured value of the ith measuring point of the nth layer.
In the step 2, the number m of the measuring points in one pass is related to the measuring point spacing distance c and the core length, and the relationship is as follows:
m＝[ln/c]+1
c, measuring point spacing distance, wherein c is more than or equal to 0.5m and less than or equal to 1m when the rock core is measured, c is more than or equal to 0.1m and less than or equal to 0.2m when the rock core is measured, and the middle bracket is a decimal integer part.
In the step 3, the projection longitudinal scale k of the geophysical prospecting recording curve of the drill core, the distance d of the horizontal scale (the horizontal distance of the projection point of the maximum value and the minimum value of the measured value) and the initial position of the projection point (Y)0，X0) And the horizontal distance d between the projection point of the minimum value of the measured value and the projection initial position0Can be freely arranged.
The software used in the computer in the step 4 is 'digital copper mine exploration software'.
The step 4 comprises the following specific steps:
(1) plane map projection with coordinates (Y)0，X0) For the initial coordinates of the borehole, the first measuring point (H) of the drill hole core pass (nth pass) is usedn1，Cn1) For the first point, calculating the planar coordinates (Y) of the first point according to the mapping scalen1，Xn1) The second measurement point (H) of the coring round (nth round) is drilledn2，Cn2) For the second point, the second point plane coordinates (Y) are calculatedn1，Xn1) Calculating by the method until the next measuring point is finished;
(2) drilling the first test point (H) of the (n +1) th round(n+1)1，C(n+1)1) For the first point of the round, the planar coordinates (Y) of the first point of the round are calculated according to the mapping scale(n+1)1，X(n+1)1) Drilling the second test point (H) for the (n +1) th round(n+1)2，C(n+1)2) For the second point, the second point plane coordinates (Y) are calculated(n+1)2，X(n+1)2) Calculating by the method until all the secondary measuring points are finished;
(3) and projecting the plane coordinate points calculated in each time to a plane graph in sequence, wherein the projection points in each time are connected by straight lines to finish the drawing of the single-time curve segment until the drawing of all the time drawing curves of the drilling is finished.
The coordinates (H) in said step 4ni，Cni) The mapping to the planar coordinates (Y, X) is as follows: the relationship of the ith measuring point plane in the nth time is as follows:
Yni＝k*Hni+Y0
Xni＝d0+d*(Cni-Cmin)/(Cmax-Cmin)+X0
wherein, YniProjection ordinate of ith measuring point of nth layer of plan; xniProjection abscissa of ith measuring point of nth layer of plan; y is0The vertical coordinate of the starting point of the plane projection drawing; x0The horizontal coordinate of the starting point of the plane projection drawing; k longitudinal scale; d horizontal scale distance (horizontal distance of projection point of maximum value and minimum value of measured value); d0The horizontal distance between the projection point of the minimum value of the measured value and the projection initial position is as follows, in a single pass, the straight line relation between the ith measuring point and the (i +1) th measuring point is as follows:
Y＝[(Yn(i+1)-Yni)/(Xn(i+1)-Xni)]*(X-Xni)+Yni(X∈[Xni，Xn(i+1)])。
the invention has the beneficial effects that: 1, the operation is simple and convenient; 2, realizing automatic drawing; 3, the pictures are digitized and are convenient to store; 4, the working efficiency is improved. The method is suitable for drawing various drilling core recording curves, can input data, automatically draws the recording curves, and greatly improves the working efficiency.
Drawings
Fig. 1 is a beta + gamma curve of a core of a borehole, wherein the automatically drawn curve is on the right side of the figure.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
A method for automatically drawing a geophysical prospecting logging curve of a rock core of a copper ore geological drilling comprises the following steps:
step 1: preparing a drill core geophysical exploration record database, wherein the database comprises a regressive n, a regressive hole depth stop hn, a regressive measuring point position anm, a regressive core length ln and a measured value Cnm;
step 2: arranging the cores according to the mode that the secondary core bottom depth bn is equal to the secondary hole depth stop hn, and calculating a measuring point depth Hnm;
and step 3: and setting a mapping scale of the drilling geophysical recording data (Hnm, Cnm) and corresponding positions (Y, X) on a plane, and calibrating projection starting point positions (Y0, X0) on the plane.
And 4, step 4: on the computer, drawing the corresponding borehole geophysical catalogue data segment by segment from the starting depth to the ending depth to the corresponding position on the screen, namely completing the mapping of coordinates (Hnm, Cnm) to plane coordinates (Y, X). When drawing on a plane, the depth range and the left and right scales of the measured value are determined as [ H0, Hmax ] and [ Cmin, Cmax ];
the database in the step 1 supports storage and spatial indexing and can be freely called.
The step 1 comprises the following specific steps:
step 1.1: designing a drilling core record database table based on an Access database structure, wherein the database comprises a recurrent n, a recurrent hole depth hn, a recurrent measuring point position anm, a recurrent core length ln and a measured value Cnm;
step 1.2: and adding the drill core geophysical prospecting record data to the table of the drill core record database.
The step 2 comprises the following specific steps:
step 2.1: arranging the rock cores according to the mode that the depth bn of the bottom of the regrind rock core is equal to the depth hn of the regrind hole;
step 2.2: the measuring point depth calculation formula is as follows:
Hni＝hn-ln+ani(0≤ani≤ln)
hnm: the drilling depth of the ith measuring point of the nth layer; hn: the nth secondary hole is deeply stopped; ln: the nth time of core length; ani: the ith measuring point position is measured for the nth time; cni: the measured value of the ith measuring point of the nth layer.
The number m of the measuring points in one pass is related to the measuring point spacing distance c and the core length, and the relationship is as follows:
m＝[ln/c]+1
c, measuring point spacing distance, when measuring the rock core, c is more than or equal to 0.5m and less than or equal to 1m, when measuring the rock core, c is more than or equal to 0.1m and less than or equal to 0.2m, and the middle bracket is a part with decimal integers
In the step 3, a projection longitudinal scale k of the geophysical prospecting recording curve of the drill core, a distance d of a horizontal scale (the horizontal distance of a projection point of the maximum value and the minimum value of the measured value), an initial position of the projection point (Y0, X0) and a horizontal distance d0 between the projection point of the minimum value of the measured value and the initial position of the projection can be freely set.
The software used in the computer in the step 4 is 'digital copper mine exploration software'.
The step 4 comprises the following specific steps:
step 4.1: the plane map projection takes coordinates (Y0, X0) as a drilling hole starting coordinate, takes a first measuring point (Hn1, Cn1) of a drilling hole coring round (nth round) as a first point, calculates the plane coordinates (Yn1, Xn1) of the first point according to a mapping scale, takes a second measuring point (Hn2, Cn2) of the drilling hole coring round (nth round) as a second point, calculates the plane coordinates (Yn1, X n1) of the second point, and calculates by the method until the measuring point of the round is finished;
step 4.2: taking the first measuring points (H (n +1)1 and C (n +1)1) of the (n +1) th round of drilling as the first points of the round, calculating the plane coordinates (Y (n +1)1 and X (n +1)1) of the first points of the round according to a mapping scale, and taking the second measuring points (H (n +1)2 and C (n +1)2) of the (n +1) th round of drilling as the second points, calculating the plane coordinates (Y (n +1)2 and X (n +1)2) of the second points, and calculating by the method until all the measuring points of the round are finished;
and 4.3, sequentially projecting the plane coordinate points calculated in each time to a plane graph, wherein the projection points in each time are connected by straight lines to finish the drawing of the single-time curve segment until the drawing of all the time drawing curves of drilling is finished.
The mapping of coordinates (Hni, Cni) to planar coordinates (Y, X) in said steps 4.1-4.3 is as follows:
the relationship of the ith measuring point plane in the nth time is as follows:
Yni＝k*H ni+Y0
Xni＝d0+d*(Cni-Cmin)/(Cmax-Cmin)+X0
wherein, Yni: projection ordinate of ith measuring point of nth layer of plan; xni: projection abscissa of ith measuring point of nth layer of plan; y0: the vertical coordinate of the starting point of the plane projection drawing; x0: the horizontal coordinate of the starting point of the plane projection drawing; k: a longitudinal scale; d: horizontal scale distance (horizontal distance of projection point of maximum value and minimum value of measured value); d 0: measuring the horizontal distance between the minimum projection point and the projection initial position;
in a single pass, the straight line relationship between the ith test point and the (i +1) th test point is as follows:
Y＝[(Yn(i+1)-Yni)/(Xn(i+1)-Xni)]*(X-Xni)+Yni(X∈[Xni，Xn(i+1)])。

Claims (10)

1. a method for automatically drawing a geophysical prospecting logging curve of a rock core of a geological drilling of a copper mine is characterized by comprising the following steps of: comprises the following steps of (a) carrying out,
step 1: preparing a drilling core geophysical exploration record database which comprises a recurrent n and a recurrent hole depth stop hnPosition a of the next measurement pointnmLength of the second corenAnd the measured value Cnm；
Step 2: according to the depth b of the core bottom of the rocknAnd the depth of the secondary hole is stopped hnArranging rock cores in an equal mode, and calculating measuring point depth Hnm；
And step 3: setting borehole geophysical exploration logging data (H)nm，Cnm) Mapping scale for corresponding position (Y, X) on the plane, calibrating projection start point position (Y) on the plane0，X0)；
And 4, step 4: drawing the corresponding drilling geophysical exploration record data on a computer from the starting depth to the ending depth to the corresponding position on a screen section by section, namely, finishing coordinates (H)nm，Cnm) Mapping to plane coordinates (Y, X), when drawing on a plane, the depth range and left and right scales of the measured value are determined, respectively [ H0，Hmax]And [ Cmin，Cmax]。
2. The method for automatically drawing the geophysical prospecting logging curve of the core of the copper ore geological drilling, which is disclosed by claim 1, is characterized by comprising the following steps of: the database in the step 1 supports storage and spatial indexing and can be freely called.
3. The method for automatically drawing the geophysical prospecting logging curve of the core of the copper ore geological drilling, which is characterized by comprising the following steps of: the step 1 comprises the following steps of,
(1) designing a drilling rock core record database table based on an Access database structure, wherein the database comprises a recurrent n and a recurrent hole depth stop hnPosition a of the next measurement pointnmLength of the second corenAnd the measured value Cnm；
(2) And adding the drill core geophysical prospecting record data to the table of the drill core record database.
4. The method for automatically drawing the geophysical prospecting logging curve of the core of the copper ore geological drilling, which is disclosed by claim 1, is characterized by comprising the following steps of: the step 2 comprises the following specific steps of,
(1) according to the depth b of the core bottom of the rocknAnd the depth of the secondary hole is stopped hnArranging the cores in an equal manner;
(2) the measuring point depth calculation formula is as follows:
Hni＝hn-ln+ani(0≤ani≤ln)
wherein Hnm: the drilling depth of the ith measuring point of the nth layer; h isn: the nth secondary hole is deeply stopped; ln: the nth time of core length; a isni: the ith measuring point position is measured for the nth time; cni: the measured value of the ith measuring point of the nth layer.
5. The method for automatically drawing the geophysical prospecting logging curve of the core of the copper ore geological drilling, which is characterized by comprising the following steps of: in the step 2, the number m of the measuring points in one pass is related to the measuring point spacing distance c and the core length, and the relationship is as follows:
m＝[ln/c]+1
c, measuring point spacing distance, wherein c is more than or equal to 0.5m and less than or equal to 1m when the rock core is measured, c is more than or equal to 0.1m and less than or equal to 0.2m when the rock core is measured, and the middle bracket is a decimal integer part.
6. The method for automatically drawing the geophysical prospecting logging curve of the core of the copper ore geological drilling, which is disclosed by claim 1, is characterized by comprising the following steps of: in the step 3, the projection longitudinal scale k of the geophysical prospecting recording curve of the drill core, the distance d of the horizontal scale (the horizontal distance of the projection point of the maximum value and the minimum value of the measured value) and the initial position of the projection point (Y)0，X0) And the horizontal distance d between the projection point of the minimum value of the measured value and the projection initial position0Can be freely arranged.
7. The method for automatically drawing the geophysical prospecting logging curve of the core of the copper ore geological drilling, which is disclosed by claim 1, is characterized by comprising the following steps of: the software used in the computer in the step 4 is 'digital copper mine exploration software'.
8. The method for automatically drawing the geophysical prospecting logging curve of the core of the copper ore geological drilling, which is characterized by comprising the following steps of: the step 4 comprises the following specific steps:
(1) plane map projection with coordinates (Y)0，X0) For the initial coordinates of the borehole, the first measuring point (H) of the drill hole core pass (nth pass) is usedn1，Cn1) For the first point, calculating the planar coordinates (Y) of the first point according to the mapping scalen1，Xn1) The second measurement point (H) of the coring round (nth round) is drilledn2，Cn2) For the second point, the second point plane coordinates (Y) are calculatedn1，Xn1) Calculating by the method until the next measuring point is finished;
(2) drilling the first test point (H) of the (n +1) th round(n+1)1，C(n+1)1) For the first point of the round, the planar coordinates (Y) of the first point of the round are calculated according to the mapping scale(n+1)1，X(n+1)1) Drilling the second test point (H) for the (n +1) th round(n+1)2，C(n+1)2) For the second point, the second point plane coordinates (Y) are calculated(n+1)2，X(n+1)2) Calculating by the method until all the secondary measuring points are finished;
(3) and projecting the plane coordinate points calculated in each time to a plane graph in sequence, wherein the projection points in each time are connected by straight lines to finish the drawing of the single-time curve segment until the drawing of all the time drawing curves of the drilling is finished.
9. The method for automatically drawing the geophysical prospecting logging curve of the core of the copper ore geological drilling, which is characterized by comprising the following steps of: the coordinates (H) in said step 4ni，Cni) The mapping to the planar coordinates (Y, X) is as follows: the relationship of the ith measuring point plane in the nth time is as follows:
Yni＝k*Hni+Y0
Xni＝d0+d*(Cni-Cmin)/(Cmax-Cmin)+X0
10. the method for automatically drawing the geophysical prospecting logging curve of the core of the copper ore geological drilling, which is characterized by comprising the following steps of: said YniProjection ordinate of ith measuring point of nth layer of plan; xniProjection abscissa of ith measuring point of nth layer of plan; y is0The vertical coordinate of the starting point of the plane projection drawing; x0The horizontal coordinate of the starting point of the plane projection drawing; k longitudinal scale; d horizontal scale distance (horizontal distance of projection point of maximum value and minimum value of measured value); d0The horizontal distance between the projection point of the minimum value of the measured value and the projection initial position is as follows, in a single pass, the straight line relation between the ith measuring point and the (i +1) th measuring point is as follows:
Y＝[(Yn(i+1)-Yni)/(Xn(i+1)-Xni)]*(X-Xni)+Yni(X∈[Xni，Xn(i+1)])。
CN201910834431.0A 2019-09-05 2019-09-05 Automatic drawing method for rock core geophysical prospecting logging curve of copper mine geological drilling Withdrawn CN110648379A (en)

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Application publication date: 20200103