CN106383368B - Deposit horizontal extension distance calculating method - Google Patents

Deposit horizontal extension distance calculating method Download PDF

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Publication number
CN106383368B
CN106383368B CN201610917774.XA CN201610917774A CN106383368B CN 106383368 B CN106383368 B CN 106383368B CN 201610917774 A CN201610917774 A CN 201610917774A CN 106383368 B CN106383368 B CN 106383368B
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glutenite
percentage composition
horizontal extension
deposit
extension distance
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CN106383368A (en
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张元福
姜在兴
王航
张海波
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China University of Geosciences Beijing
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China University of Geosciences Beijing
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V9/00—Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00
    • G01V9/007—Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00 by detecting gases or particles representative of underground layers at or near the surface
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/02—Investigating particle size or size distribution
    • G01N15/0205—Investigating particle size or size distribution by optical means, e.g. by light scattering, diffraction, holography or imaging
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V9/00—Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/02—Investigating particle size or size distribution
    • G01N2015/0277—Average size only

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Abstract

The present invention provides a kind of deposit horizontal extension distance calculating methods, calculate deposit horizontal extension distance according to the glutenite percentage composition value in multiple places, specifically include：The first glutenite percentage composition isogram is drawn according to the glutenite percentage composition value in the first period multiple places；The second glutenite percentage composition isogram is drawn according to the glutenite percentage composition value in the second period the multiple place；Deposit horizontal extension distance is calculated according to the first glutenite percentage composition isogram and the second glutenite percentage composition isogram.Due to glutenite be bury it is underwater, it will not suffer erosion, it calculates in this way, just it avoids since deposit above water is easy to be degraded, it is measured caused by and inaccurate, so that the reliability for calculating deposit horizontal extension distance is stronger, and then make stronger apart from the accuracy of calculated relative water depth amplitude of variation by the slope belt Gu gradient and deposit horizontal extension.

Description

Deposit horizontal extension distance calculating method
Technical field
The present invention relates to geological exploration fields, more particularly, to a kind of deposit horizontal extension distance calculating method.
Background technology
Edge (the loke shore, seashore) position in ancient lakes or sea has a large amount of silt due to there is the injection in river It carries so far, and deposits.By compacting of burying in millions of years, diagenesis occurred for the silt of ancient times deposition, forms one The internal development of kind has the reservoir rock of many holes.This kind of rock can store abundant petroleum resources, and on ancient lake side Edge extensive development becomes the important oil reservoirs of one kind of east China petroleum exploration domain.But the development of the rocks can be by The influence changed to ancient lake relative water depth：Extend when water depth ratio amplitude is larger, in the lake of covalency farther out, the rocks The development thickness of loke shore it is thicker, development area it is wider；When amplitude of variation is small, rocks development thickness is thin, develops area It is smaller.In petroleum exploration domain, the area and thickness by determining the development of such reservoir rock are needed, and then estimates oil gas money Source reserves.Therefore, it is necessary to the relative water depth amplitudes of variation to the ancient lakes specific period to carry out quantitative calculating, be stored up with this to determine The developmental state of layer rock.Meanwhile in academic research field, about the problem of restoring ancient landform, paleao-water depth always geology, In the fields such as sedimentology study hot spot, difficult point, this method for improve geology, sedimentological paleao-water depth restore research There is positive effect.
Once there is foreign scholar to propose to utilize the ancient gradient of ancient seashore slope belt and prolonging for seashore channel deposit waterborne a few years ago Distance is stretched to calculate the amplitude of variation of relative water depth.This method carries out the meter of the slope belt Gu gradient of waterfront margin slope band first It calculates, further needs exist for measuring the distance that river drift waterborne extends forward in slope belt according to the on-the-spot investigation in field, Namely deposit horizontal extension distance carries out trigonometric function calculating using the two parameters, finally calculates relative water depth change Change amplitude.
But in the prior art, when calculating relative water depth amplitude of variation, what is mainly utilized is prolonging for river drift waterborne The deposit horizontal extension distance for stretching distance to calculate.Since the above water of deposit is easy to be degraded, preserves imperfect, lead River extended distance waterborne is caused to be not easy accurately to measure.It is not that this, which also has led to calculated ancient stream channel relative water depth amplitude of variation, Accurately.
Invention content
The present invention is application No. is CN201410218974.7, and patent name is " the calculating side of relative water depth amplitude of variation The divisional application of method ".
The purpose of the present invention is to provide a kind of deposit horizontal extension distance calculating methods, to solve to deposit in the prior art The technical issues of.
The computational methods for providing relative water depth amplitude of variation in an embodiment of the present invention include：
Deposit horizontal extension distance is calculated according to the glutenite percentage composition value in multiple places；
It obtains and the slope belt Gu gradient of the deposit horizontal extension apart from same position；
Relative water depth amplitude of variation is calculated according to the slope belt Gu gradient and deposit horizontal extension distance.
Preferably, described to include according to the glutenite percentage composition value in multiple places calculating deposit horizontal extension distance：
The first glutenite percentage composition isogram is drawn according to the glutenite percentage composition value in the first period multiple places；
It is equivalent that the second glutenite percentage composition is drawn according to the glutenite percentage composition value in the second period the multiple place Line chart；
According to the first glutenite percentage composition isogram and the second glutenite percentage composition isogram meter Calculate deposit horizontal extension distance.
Preferably, further include：Measure the stratum cumulative thickness of the glutenite cumulative thickness and the position of designated position；
It is obtained described in the designated position according to the ratio of the glutenite cumulative thickness and the stratum cumulative thickness Glutenite percentage composition value.
Preferably, further include：
Obtain the mean particle size of deposited particles；
Paleochannel depth is calculated according to the ancient times water channel deposit residual thickness measured；
According to the mean particle size and the paleochannel depth calculation slope belt Gu gradient.
Preferably, further include before the mean particle size for obtaining deposited particles：
Obtain multiple deposited particles；
The grain size of each deposited particles is measured using mode measured directly；
If the grain size of deposited particles is less than preset limit value, to the grain of the deposited particles by the way of apparatus measures Diameter measures, and obtains direct measured value as grain diameter measurement value；
If the grain size of deposited particles is not less than preset limit value, using obtained direct measured value as grain diameter measurement Value；
Mean particle size is calculated according to the grain diameter measurement value of each deposited particles.
Preferably, the instrument includes：Laser particle analyzer and light microscope.
Preferably, further include：
Measure the thickness of more phase coarse grain depositions；
The average value of coarse grain deposition described in more phases is calculated as ancient times water channel deposit residual thickness.
Preferably, further include：The slope belt Gu gradient is calculated according to following formula：
S=0.141 × D50×d-1
Wherein, S is the slope belt Gu gradient, D50For the mean particle size of deposited particles, d is paleochannel depth.
Preferably, relative water depth amplitude of variation is calculated according to following formula；
H=X × S
Wherein H is relative water depth amplitude of variation, and X is deposit horizontal extension distance, and S is the slope belt Gu gradient.
Preferably, by the way of apparatus measures to the grain size of the deposited particles measure including：
The rock sample with deposited particles is crushed, it is 0.5-1.5mm to make the particle size of the deposited particles；
Rock sample after crushing is placed in the H of a concentration of 10%-20%2O2In solution, and when heating water bath is one section preset Between；
Taking-up is placed in H2O2Rock sample in solution, and the rock sample is placed in the hydrochloric acid solution of a concentration of 5%-15%, until Rock sample bubble-free generates；
The rock sample being placed in hydrochloric acid solution is taken out, and removes the H on rock sample2O2Solution and hydrochloric acid solution；
The rock sample is ground, to obtain independent deposited particles；
The grain size of deposited particles is measured using laser particle analyzer.
The computational methods of relative water depth amplitude of variation provided in an embodiment of the present invention utilize river waterborne in the prior art The extended distance of road deposit come the deposit horizontal extension distance that calculates, due to the above water of deposit is easy to be degraded, It preserves imperfect, river extended distance waterborne is caused to be not easy accurately to measure, and then relative water depth amplitude of variation is caused to be inaccurate Compare, deposit horizontal extension distance is calculated by using the glutenite percentage composition in multiple places, due to glutenite It is to bury underwater, will not suffers erosion, is just avoided in this way since deposit above water is easy to be degraded, and caused by Measure inaccurate so that the reliability for calculating deposit horizontal extension distance is stronger, and then make through the slope belt Gu gradient and Accuracy of the deposit horizontal extension apart from calculated relative water depth amplitude of variation is stronger.
Description of the drawings
Fig. 1 shows the basic flow chart of the computational methods of the relative water depth amplitude of variation of the embodiment of the present invention；
Fig. 2 shows the deposit horizontal extensions of the relative water depth amplitude of variation of the embodiment of the present invention apart from calculation process Figure；
Fig. 3 shows that two period of the morning and evening glutenite percentage composition of the relative water depth amplitude of variation of the embodiment of the present invention is equivalent The comparison diagram of line chart；
Fig. 4 shows the schematic diagram of the relative water depth amplitude of variation computational methods of the embodiment of the present invention.
Specific implementation mode
The present invention is described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.
The embodiment of the present invention 1 provides the computational methods of relative water depth amplitude of variation, as shown in Figure 1, including the following steps：
S101 calculates deposit horizontal extension distance according to the glutenite percentage composition value in multiple places；
S102 is obtained and the slope belt Gu gradient of the deposit horizontal extension apart from same position；
S103 calculates relative water depth amplitude of variation according to the slope belt Gu gradient and deposit horizontal extension distance.
The computational methods of relative water depth amplitude of variation mainly utilize deposit horizontal extension distance and the slope belt Gu gradient Come what is calculated, certain deposit horizontal extension distance and the slope belt Gu gradient refer to the distance of same position and the ancient gradient, phase The difference of the depth of water in two periods sooner or later is referred to water depth ratio amplitude.
In the prior art, the calculated deposit water of deposit extended distance waterborne obtained according to the on-the-spot investigation in field Flat extended distance is inaccurate, the reason is that deposit waterborne, with the migration of time, can make to sink with the impact of flow The above water of product object is degraded, and then calculated deposit horizontal extension distance is caused to be inaccurate, in view of this, It in step S101, uses and calculates deposit horizontal extension distance using glutenite percentage composition value, to substitute by waterborne Deposit extended distance calculates deposit horizontal extension distance.In order to accurately calculate deposit horizontal extension distance, need Local glutenite percentage composition is first measured, deposit horizontal extension distance is being calculated according to glutenite percentage composition.Wherein, In order to accurately measure the percentage composition of glutenite, need to play more mouthfuls of prospect pits in position to be measured, certainly, the position of prospect pit is got over Intensive, the data of the glutenite percentage composition obtained are also more, and distribution is average, can also make the glutenite being calculated Percentage composition is more accurate.It, can be according to the glutenite percentage composition of the multiple positions measured after measuring glutenite percentage composition Glutenite percentage composition (glutenite thickness/formation thickness) isogram for drawing two periods sooner or later is obtained with more intuitive To deposit horizontal extension distance.
Step S102 also needs to obtain the slope belt Gu gradient, wherein slope belt to calculate relative water depth amplitude of variation The ancient gradient can be calculated according to the paleochannel depth and average median grain diameter of the position, have been described above its meter in the prior art Calculation process, details are not described herein.
Step S103 finally calculates relative water depth and changes width according to the slope belt Gu gradient and deposit horizontal extension distance Degree.The slope belt Gu gradient, deposit horizontal extension distance and relative water depth amplitude of variation constitute a right angled triangle, according to The calculation of right angle trigonometry function can calculate to obtain relative water depth amplitude of variation.
The computational methods of relative water depth amplitude of variation provided in an embodiment of the present invention, by using the glutenite in multiple places Percentage composition calculates underwater sediment(s) horizontal extension distance, wherein underwater sediment(s) horizontal extension distance refer to sooner or later two when The difference of the deposit horizontal distance of phase.It since glutenite is to bury underwater, will not suffer erosion, calculate, just keep away in this way Exempted to be easy to be degraded due to deposit above water, and caused by measure it is inaccurate so that calculate deposit horizontal extension The reliability of distance is stronger, and then makes to become apart from calculated relative water depth by the slope belt Gu gradient and deposit horizontal extension The accuracy of change amplitude is stronger.
The embodiment of the present invention 2 is on the basis of embodiment 1, the meter of relative water depth amplitude of variation of further description The details of calculation method.
For the ease of calculating deposit horizontal extension distance, step S101 can be divided into following steps, as shown in Figure 2：
It is equivalent to draw the first glutenite percentage composition according to the glutenite percentage composition value in the first period multiple places by S201 Line chart；
S202 draws the second glutenite percentage composition according to the glutenite percentage composition value in the second period the multiple place Isogram；
S203, according to the first glutenite percentage composition isogram and the second glutenite percentage composition isopleth Figure calculates deposit horizontal extension distance.
It should be noted that the glutenite percentage composition value of different times is distinguished by the fineness of glutenite , then by it is detailed comparison and calculating to obtain the glutenite percentage composition in each place of different times, finally further according to The glutenite percentage composition in each place of different times is depicted as glutenite percentage composition isogram.Wherein, the first period Refer to two periods of morning and evening in relative water depth amplitude of variation with the second period.Specifically, glutenite percentage composition value is specific bit The ratio between the stratum cumulative thickness of the glutenite cumulative thickness and the position set, that is, the glutenite cumulative thickness of each well and should The ratio between stratum cumulative thickness of position, certainly, in the contemporaneity that glutenite cumulative thickness and stratum cumulative thickness refer to, Exactly with need calculate relative water depth amplitude of variation two period of morning and evening in.The glutenite obtained by the well of different location Percentage composition value is depicted as glutenite percentage composition isogram, then by comparing the glutenite percentage composition in two periods sooner or later Isogram can obtain deposit horizontal extension distance.
Glutenite percentage composition isogram has been reacted and has been developed in the territorial scope of measuring and calculating relative water depth amplitude of variation Glutenite content number, and the deposit at lake edge or seashore edge is mainly based on glutenite, therefore, by estimating The variation for calculating glutenite isopleth, then can reflect the horizontal extension distance of lake edge underwater sediment(s).The volume of isogram System needs to collect the rock data that survey region prospect pit is drilled through first, identifies the rock category in interval of interest, judge that it is No is glutenite.Then the thickness of the cumulative thickness and the interval of interest of the glutenite in every mouthful of prospect pit layer purpose section is counted respectively Degree, and its ratio is obtained, which is the glutenite percentage composition value of every mouthful of prospect pit.Then sat according to the well location of different prospect pits It is marked with and the glutenite percentage composition value of the prospect pit, isogram is obtained using graphics software.
The thickness situation of rock grain size come distinguish and calculating and plotting good two periods of morning and evening glutenite percentage composition etc. It is worth the comparison diagram of line chart, as shown in Figure 3, wherein single, shore and its subsequent number represent the code name of different prospect pits and multiple points Location designation, the edge of black region is the range for representing lake edge underwater sediment(s) and extending, left side a figures represent water body compared with The range of deep period deposit development, right side b figures represent water body it is shallower when range, the range in b figures extends to a by dotted line Figure is compared, and two solid lines respectively represent the deposit range of the high and low different times of the depth of water in a figures, are measured in figure Underwater sediment(s) horizontal extension distance change value on to map, engineer's scale when in conjunction with drawing, so that it may which conversion is deposited Object horizontal extension distance X.
The slope belt Gu gradient can be calculated as follows：
Obtain the mean particle size of deposited particles；
Paleochannel depth is calculated according to the ancient times water channel deposit residual thickness measured；
According to the mean particle size and the paleochannel depth calculation slope belt Gu gradient.
Its calculation formula is S=0.141 × D50×d-1；
Wherein, S is the slope belt Gu gradient, D50For the mean particle size of deposited particles, d is paleochannel depth.
The calculating of the slope belt Gu gradient first has to use St.Venant formula (St.Venantequation)：
Equation that describes the flowing laws of fluid in water channel.Wherein, u is the directions x (downbeam) speed, and v is the directions y (perpendicular flow direction) speed, t are the time, and σ is topography height above sea level (topographic elevation), and d is paleochannel depth, τ For shear stress, (i.e. the shear stress of particle and fluid contact interface acts at the surface of the particles, τ hereinafter0、τ*It is similarly particle With the shear stress of fluid contact interface, effect is at the surface of the particles).
The equation is simplified：Assuming that water channel depth is constant, thenAnother speed is kept constant again, is neither become at any time Change, also not with change in location, this makes it possible to obtain Then (1) formula becomes Simultaneously asWherein, S is the slope belt Gu gradient, so
τ=ρ gdS, (2)；
(2) formula shows the particle that is handled upside down in water channel water body and reaches mechanical balance state under steady state of motion, i.e., Component of the gravity along slope direction reaches equal with particle with the shear stress (interior friction) of fluid contact interface.Since mechanics is flat Weighing apparatus so that particle stop motion simultaneously realizes deposition.If it is possible to estimate the size of shear stress, then can calculate Go out the gradient.
Parker (1978) proposes the initial shear stress (critical shear stress) that the shear stress τ under equilibrium state is carried with particle There is such relationships：
τ=(1+ ε) τ0, (3)
Wherein τ0For the initial shear stress that particle is carried, ε is theoretical value 0.2.Parker thinks that particle movement was subject to cuts For stress (interior friction) shown in satisfaction (3) formula when relationship, τ values have then reached its maximum value, in this case, water channel itself meeting Establish a kind of mechanism of dynamic equilibrium so that particle gradually forms deposition.So (3) formula of utilization can be asked by initial shear stress Obtain the shear stress under equilibrium state.
Initially the estimation of (critical) shear stress can introduce the concept of critical Shields shear stress.Croninetal. (2007) point out that critical Shields shear stress is defined as the ratio of the initial shear stress and average particle size intermediate value of particle movement, I.e.
Wherein, τ*For critical Shields shear stress, τ0Initial shear stress, ρ are moved for particlesFor grain density (glutenite Density range 2.3~2.7), ρ is fluid density (water 1), D50For average particle size intermediate value (mean particle size).Face when τ * reach When dividing value, transportation then occurs for particle.About the value of τ *, the empirical value 0.062 of experimental study is chosen herein.
Simultaneous formula (2), (3), (4), can obtain
By ρs、ρ、ε、τ*(5) are substituted into respectively, gradient calculation formula is calculated
S=0.141 × D50×d-1, (6)；
Therefore, as long as measuring the average grain diameter average value D in research area50With paleochannel depth d, then the slope belt Gu gradient S can be obtained.
In order to more accurately measure the mean particle size D of deposited particles50, measuring instrument can be used to replace traditional direct Measurement method (artificial ruler measures).Simultaneously in view of taking for apparatus measures mode is long, and cost is higher than manually straight Measurement method is connect, therefore, the mean particle size measuring and calculating mode of deposited particles is as follows：
Obtain multiple deposited particles；
The grain size of each deposited particles is measured using mode measured directly；
If the grain size of deposited particles is less than preset limit value, to the grain of the deposited particles by the way of apparatus measures Diameter measures, and obtains direct measured value as grain diameter measurement value；
If the grain size of deposited particles is not less than preset limit value, using obtained direct measured value as grain diameter measurement Value；
Mean particle size is calculated according to the grain diameter measurement value of each deposited particles.
By the way that different size of deposited particles to be selected to different measurement methods, the grain of the deposited particles measured is improved The accuracy of diameter, so make it is more accurate by the calculated relative water depth amplitude of variation of the value.It also avoids making simply simultaneously With the extension of time of measuring caused by apparatus measures and the increase of cost, in turn avoiding relying solely on Instrumental Analysis leads to coarse grain The difficulty that particle is unable to measure.Preferably, preset limit value is 10mm, can will be easy standard by direct measurement method in this way The deposited particles for really measuring and being not easy accurately to measure distinguish.And effectively raise the speed of measurement.Preferably, instrument Including：Laser particle analyzer and light microscope.
By the way of apparatus measures to the grain size of the deposited particles measure including：
The rock sample with deposited particles is crushed, it is 0.5-1.5mm, preferably, grain to make the particle size of the deposited particles Diameter size is 1mm or so；
Rock sample after crushing is placed in the H of a concentration of 10%-20%2O2In solution, and when heating water bath is one section preset Between, to remove organic matter, preferably, H2O2Solution concentration is 15%, and preset a period of time is 10 minutes or so；
Taking-up is placed in H2O2Rock sample in solution, and the rock sample is placed in the hydrochloric acid solution of a concentration of 5%-15%, until Rock sample bubble-free generates, preferably, concentration of hydrochloric acid solution 10%, to remove cement；
The rock sample being placed in hydrochloric acid solution is taken out, and removes the H on rock sample2O2Solution and hydrochloric acid solution are handled, one in this way Aspect is conducive to the grinding to sample in latter acts, is also possible to prevent dilute hydrochloric acid and is damaged to instrument；
The rock sample is ground, to obtain independent deposited particles；
The grain size of deposited particles is measured using laser particle analyzer.
So far, sample to be tested preparation finishes, and puts it into laser particle analyzer, then can directly read granule size, The accuracy of impurity interference measurement is avoided, the grain size for accurately measuring deposited particles can be measured.
The depth of paleochannel is measured using the residual thickness of ancient times water channel deposit.Due to water channel water volume flow rate compared with Soon, the ability of transported deposit object is stronger, therefore the deposit formed in water channel is mostly the granularity rock type larger compared with thick, particle Type.But the development of water channel has the characteristics of often changing its course, since flow velocity weakens, transporting capacity weakens, shape at this time after changing its course At deposit be mostly granularity is relatively thin, particle is smaller rock type.So, the regular of water channel changes its course, then results in brill The rock type that well obtains there is coarse grain interacted on fine rock longitudinal direction development feature.We are by measuring particulate twice The development thickness of folded coarse rock between rock can then obtain the thickness of the water channel deposition in some period, and water channel is heavy Long-pending thickness can substantially reflect the depth of paleochannel.On this basis, the paleochannel depth of more phase developments is measured, and seeks it Average value obtains paleochannel depth with this, carries out subsequent calculating.
In order to more accurately calculate ancient times water channel deposit residual thickness, the thickness of more phase coarse grain depositions can be first measured Degree；The average value of coarse grain deposition described in more phases is calculated again as ancient times water channel deposit residual thickness.
The residual thickness of deposit can react the depth for the paleochannel to form deposition period indirectly, under statistically The thickness of more phase coarse granule depositions in the rock sample drilled through, to measure paleochannel depth.The characteristics of loke shore water channel deposits is more phase water Road is longitudinally superimposed, and the coarse grain deposition in lithological sequence represents water channel deposition, and has fine-grained sediment conduct between each issue of coarse grain water channel Interval, therefore, should count the thickness of each issue of coarse grain deposit development, then seek its average value and deposit average residual thickness as water channel Degree, and then the depth d of paleochannel is calculated, further according to the mean particle size D of deposited particles50It is calculated tiltedly with paleochannel depth d Slope band Gu gradient S.
Become as shown in figure 4, calculating relative water depth according to following formula after calculating deposit horizontal extension distance X and S Change amplitude；
H=X × S
Wherein H is relative water depth amplitude of variation, and X is the underwater extended distance of deposit, and S is the slope belt Gu gradient.Such as Fig. 4 institutes Show, the tangent value of angle a is slope belt Gu gradient S.
The computational methods of relative water depth amplitude of variation provided in an embodiment of the present invention, by using the glutenite in multiple places Percentage composition calculates deposit horizontal extension distance, since glutenite is to bury underwater, will not suffer erosion, so just Avoid since deposit above water is easy to be degraded, and caused by measure it is inaccurate；And by improving measuring and calculating deposition The mean particle size D of particle50Mode, used the accuracy for the data that the mode of apparatus measures makes measurement obtain to improve. So that the reliability for calculating deposit horizontal extension distance is stronger, and then make through the slope belt Gu gradient and deposit water The accuracy of the flat calculated relative water depth amplitude of variation of extended distance is stronger.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (9)

1. deposit horizontal extension distance calculating method, which is characterized in that according to the glutenite percentage composition value meter in multiple places Deposit horizontal extension distance is calculated, is specifically included：
The first glutenite percentage composition isogram is drawn according to the glutenite percentage composition value in the first period multiple places；
The second glutenite percentage composition isogram is drawn according to the glutenite percentage composition value in the second period the multiple place；
It is heavy to be calculated according to the first glutenite percentage composition isogram and the second glutenite percentage composition isogram Product object horizontal extension distance；
First period and second period refer to two periods of morning and evening in relative water depth amplitude of variation；
The glutenite percentage composition isogram has been reacted and has been developed in the territorial scope of measuring and calculating relative water depth amplitude of variation Glutenite content number, and the deposit at lake edge or seashore edge is mainly based on glutenite, therefore, by estimating The variation for calculating glutenite isopleth, then can reflect the horizontal extension distance of lake edge underwater sediment(s).
2. deposit horizontal extension distance calculating method according to claim 1, which is characterized in that further include：Measurement refers to Position the stratum cumulative thickness of the glutenite cumulative thickness and the position set；
The gravel of the designated position is obtained according to the ratio of the glutenite cumulative thickness and the stratum cumulative thickness Rock percentage composition value.
3. deposit horizontal extension distance calculating method according to claim 2, which is characterized in that in order to accurately measure The percentage composition of glutenite plays more mouthfuls of prospect pits in position to be measured.
4. deposit horizontal extension distance calculating method according to claim 3, which is characterized in that the more mouthfuls of prospect pits are close Collection setting.
5. deposit horizontal extension distance calculating method according to claim 3, which is characterized in that the more mouthfuls of prospect pits are equal Even setting.
6. deposit horizontal extension distance calculating method according to claim 1, which is characterized in that different times it is described Glutenite percentage composition value is distinguished by the fineness of glutenite.
7. deposit horizontal extension distance calculating method according to claim 3, which is characterized in that the glutenite percentage Content value is the ratio between the stratum cumulative thickness of the glutenite cumulative thickness and the position of each well.
8. deposit horizontal extension distance calculating method according to claim 3, which is characterized in that the glutenite is accumulative In the contemporaneity that thickness and stratum cumulative thickness refer to.
9. deposit horizontal extension distance calculating method according to claim 3, which is characterized in that pass through different location The glutenite percentage composition value that well is obtained is depicted as glutenite percentage composition isogram, then by comparing two periods sooner or later Glutenite percentage composition isogram i.e. obtain deposit horizontal extension distance.
CN201610917774.XA 2014-05-22 2014-05-22 Deposit horizontal extension distance calculating method Active CN106383368B (en)

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HK17104931.5A HK1231563A1 (en) 2014-05-22 2017-05-17 A method for calculating horizontal extension distance of sediment

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CN201410218974.7A CN103969698B (en) 2014-05-22 2014-05-22 Relative water depth rangeability calculation method
CN201610917774.XA CN106383368B (en) 2014-05-22 2014-05-22 Deposit horizontal extension distance calculating method

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