CN202057809U - Near surface lithology detector - Google Patents
Near surface lithology detector Download PDFInfo
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- CN202057809U CN202057809U CN201120103356XU CN201120103356U CN202057809U CN 202057809 U CN202057809 U CN 202057809U CN 201120103356X U CN201120103356X U CN 201120103356XU CN 201120103356 U CN201120103356 U CN 201120103356U CN 202057809 U CN202057809 U CN 202057809U
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- probe
- feeler lever
- near surface
- hydraulic pressure
- lithology
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Abstract
The utility model discloses a near surface lithology detector, comprising a driving mechanism and a measuring apparatus, wherein the driving mechanism is a hydraulic injection device arranged on a mobile carrier, the measuring apparatus includes underground probes, an overground ground data acquisition and display system and an underground measuring data processing platform, and the hydraulic injection device is connected with the underground probes of the measuring apparatus. By means of organical combination of the near surface gamma logging technology and the static detection technology, and by means of mutually confirmation, the water content influence is successfully avoided, the stratum structure and the lithology change rule are detected more accurately, and finally the shooting lithology is selected point by point. The utility model applies the engineering static detection technology to the field of geophysical prospecting for petroleum for the time, the near surface lithology is judged from the aspects of rock mechanics and gamma ray absorption attenuation, providing basis for designing optimal shooting lithology pointing by point in seismic prospecting, improving the signal to noise ratio of single shot record finally, and greatly improving the data quality.
Description
Technical field
The utility model relates to face of land lithology detection instrument, specifically a kind of near surface lithology detection instrument.
Background technology
At present in the oil seismic exploration, near surface lithology detection method mainly contains that lithology is cored and static(al) is surveyed two kinds.All there is certain limitation in two kinds of methods under specific situation.For example in the bigger area of water percentage, the disturbance of corer causes the result and unreliable that cores; On the other hand, high moisture result and the truth that causes relying on stress difference to divide lithology differs greatly.
There is the inconvenient defective of transportation in the sniffer that is applied in the prior art detection method simultaneously, does not have portable characteristics; The driving mechanism function of feeler lever is few in addition, does not realize robotization.
Near surface gamma logging technology is exactly to utilize the contained radioactive isotope type in stratum and the concentration difference of different lithology, and gamma-ray photon energy level that causes and radioactive intensity difference are discerned lithology, divided stratum, research sedimentary environment and some other geological problems.The utility model utilizes the natural gamma radioactivity Strength Changes of near surface ground and the variation of stress of near surface lithology with the combination of gamma logging technology and static(al) Detection Techniques, meticulous identification near surface formation lithology.
Meaning of the present utility model is to utilize the combination of near surface gamma logging technology and static(al) Detection Techniques, confirmation mutually, success avoided the water percentage influence, can survey stratal configuration and lithological change rule more accurately, final pointwise selective excitation lithology.
The utility model content
The purpose of this utility model is the defective that exists at prior art, a kind of near surface lithology detection instrument is provided, solves the problem that not high and not portable and driving mechanism of driving mechanism robotization that the prior art sniffer exists and conveying arrangement combine.This detection instrument can not produce because in the bigger area of water percentage when concrete the detection, and the disturbance of corer causes core result and unreliable and high moisture cause the relying on result of stress difference division lithology and the problem that truth differs greatly.
The technical scheme that its technical matters that solves the utility model adopts is:
Near surface lithology detection instrument, its structure comprises driving mechanism and measurement mechanism; Described driving mechanism is the hydraulic pressure perforation device that places on the mobile vehicle, and described measurement mechanism comprises underground probe and collection display system of ground data on the ground and survey data processing platform; Described hydraulic pressure perforation device connects the probe of underground survey device by feeler lever.
Described probe comprises natural gamma probe and the pressure probe that interconnects by the frictional resistance probe, and described natural gamma probe connects feeler lever; Described probe connects ground data on the ground by the cable that places feeler lever and gathers display system and survey data processing platform.
Described mobile vehicle is to have the vehicle of casing and the counterforce device during as the downward injection of hydraulic pressure perforation device, and described hydraulic pressure perforation device places in the casing of vehicle.
Described hydraulic pressure perforation device provides power by mobile vehicle, connects and driving feeler lever and probe by hydraulic jack; That described hydraulic pressure perforation device also includes is left and right, back windlass and earth anchor and controlled by each time windlass joystick down; Described feeler lever also is connected with the angle machine.
The injection that described hydraulic pressure perforation device also comprises the hydrostatic control operator's console, be used for controlling hydraulic jack and feeler lever rises pulls out handle, also comprise the feeler lever storage and the auxiliary fuel tank that are used for storing feeler lever and oil simultaneously, described mobile vehicle outer setting has a plurality of hydraulic legs, and described supporting leg is controlled by the joystick of hydraulic pressure perforation device.
A kind of near surface lithology detection instrument of the present utility model is compared with prior art, has following beneficial effect:
The utility model utilizes the combination of near surface gamma logging technology and static(al) Detection Techniques, mutually confirmation, success avoided the water percentage influence, can survey stratal configuration and lithological change rule more accurately, final pointwise selective excitation lithology.First the quiet spy technology of engineering is applied to the petroleum exploration field in the world wide, differentiate the near surface lithology from rock-soil mechanics and gamma ray attenuation by absorption two aspects, for seismic prospecting pointwise devise optimum excites lithology that foundation is provided, the final single shot record signal to noise ratio (S/N ratio) that improves increases substantially data quality.
Description of drawings
Fig. 1 is the structure flow chart of a kind of near surface lithology detection instrument of the present utility model;
The actual lithology that Fig. 2 is to use a kind of near surface lithology detection instrument of the present utility model to survey near surface is surveyed result map.
Embodiment
Next explain below with reference to Figure of description the utility model being done.
Near surface lithology detection instrument of the present utility model, its structure comprises driving mechanism and measurement mechanism; Described driving mechanism is the hydraulic pressure perforation device that places on the mobile vehicle, described hydraulic pressure perforation device provides power by mobile vehicle, described mobile vehicle is to have the vehicle of casing and the counterforce device during as the downward injection of hydraulic pressure perforation device, and the utility model adopts the continuous injection mode of hydraulic means.Obtaining of counter-force can be obtained by earth anchor and vehicle and equipment self-weight; Described hydraulic pressure perforation device places in the casing of vehicle.Described measurement mechanism comprises that underground well logger is promptly popped one's head in and static(al) detection instrument on the ground is that ground data is gathered display system and survey data processing platform; Described hydraulic pressure perforation device connects the probe of underground survey device by feeler lever.Described probe comprises natural gamma probe and the pressure probe that interconnects by the frictional resistance probe, and described natural gamma probe connects feeler lever; Described probe connects ground data on the ground by the cable that places feeler lever and gathers display system and survey data processing platform.Measuring accuracy can be full of the identification and the division of shallow table formation lithology; The machinery yield strength can satisfy under the hydraulic pressure injection pressure of 600MPa and not produce bending.The hydraulic pressure perforation device connects and driving feeler lever and probe by hydraulic jack; That described hydraulic pressure perforation device also includes is left and right, back windlass and earth anchor and controlled by each time windlass joystick down; Described feeler lever also is connected with the angle machine.Probe diameter is at 40～50mm, and concrete size is subjected to the natural gamma measuring instrument to be subjected to crystalline size and electronic circuit size restrictions, requirement such as anti-yield strength when satisfying injection simultaneously; NaI (Tl) crystal parts: it converts gamma ray to light passing the portion of energy that is consumed on the path of medium, then by optically-coupled, but the light pulse that the photomultiplier receiving crystal sends, thus judge the Changing Pattern of natural gamma; CR192 photomultiplier: will carry out opto-electronic conversion and current multiplication amplification from the faint passage of scintillation light of sodium iodide crystal.12 core cable electrical connect electric wire, provide power supply and signal transmission passage on ground for gamma logging probe, static(al) detection probe; The injection that described hydraulic pressure perforation device also comprises the hydrostatic control operator's console, be used for controlling hydraulic jack and feeler lever rises pulls out handle, also comprise the feeler lever storage and the auxiliary fuel tank that are used for storing feeler lever and oil simultaneously, described mobile vehicle outer setting has a plurality of hydraulic legs, and described supporting leg is controlled by the joystick of hydraulic pressure perforation device.
A kind of near surface lithology detection instrument of the present utility model is when concrete the use, its using method is the leveling mobile vehicle: after the position that mobile vehicle is being chosen is slack, four former wood block fillers are placed four hydraulic leg belows respectively, utilize the supporting leg joystick in the hydraulic pressure perforation device to adjust four leveling supporting legs of lower vehicle, rise or descend, make injection oil cylinder and ground be in plumbness, guarantee the static(al) detecting devices vertical stratum that is pressed into of will popping one's head in feeler lever, avoid feeler lever crooked or damage, when alleviating work simultaneously to the pressure of the tire of mobile vehicle;
Hydraulic pressure casts anchor: consider the space and the operation of mobile vehicle casing, designed windlass under three hydraulic pressure, the left and right seat in the plane of casting anchor of front end is put fixing, and the function of casting anchor behind the rear end horizontally slips; Left and right down each the next earth anchor of windlass of front end, under the rear end windlass next to three earth anchors; The cleaner handgrip that casts anchor after the pulling, the work of casting anchor after windlass comes downwards to the orienting sleeve place down, takes out bearing pin; To descend windlass to go up again, place the connecting link that the casts anchor work of casting anchor again, be lower than about the 15CM of mobile vehicle ground, and stop to cast anchor until the anchor pole top to the mechanism top of casting anchor.Make and use the same method fixing in burying under other two earth anchors of back; Pulling bottom right windlass handle, the bottom right windlass is started working, and about the downward 70CM of windlass, stops to cast anchor under arriving;
The hydraulic pressure injection: the feeler lever that at first will put on cable in advance is connected with probe; Must probe is fixing during connection, clockwise rotate feeler lever, until being connected firmly with probe; Injection work is carried out according to the following steps: a, will connect the feeler lever of probe, and pass in the middle of the crossbeam of injection hydraulic jack; In the hole of the web joint of injection hydraulic jack middle part and entablature centre, insert the orienting sleeve of two semicircles respectively; Its feeler lever is stabilized in the middle of two oil cylinders, connects a feeler lever again, insert fixture block; B, operating hydraulically operated injection rise pulls out handle and makes its oil cylinder lifting, will have the feeler lever lifting of fixture block when crossbeam after, behind the probe built on stilts 5CM, promptly stop; C, according to the mode of connection of probe, the terminal box of cable and the ground data of probe being gathered display system is connected, and according to the instrument service manual ground data is gathered the display system start, imports various instruction correlation parameters in form; D, the angle machine is fixed on the feeler lever of injection soon, and carries out degree of depth zeroing; E, the crossbeam of injection hydraulic jack is descended, extract fixture block, the groove of rising crossbeam to the probing rod joint inserts fixture block in the bottom of its crossbeam, and the decline crossbeam is measured; F, oil cylinder design runlength are 45cm, and each root feeler lever of standard is pressed at twice; Therefore, when entablature rises to the oil cylinder top, must be pressed into the bottom auxiliary girder; G, along with descending at soil layer of probe and inserting tube, ground must connect inserting tube work at any time again;
Carry out surveying work: a in the process of injection simultaneously, will pop one's head at the uniform velocity is pressed in the process on stratum, static point resistance, the sidewall friction power of static(al) probe will be monitored panel in real time by cable transmission to ground; When b, gamma ray are absorbed by NaI (Tl) crystal, just produce gleam at crystals; When entering the negative electrode of photomultiplier by the optocoupler mixture, flash of light gets a free electron; This free electron in photomultiplier through exciting a negative current pulse from high-voltage anode behind 10 multiplication by stages.Negative current pulse of every generation just detects a gamma ray; Three parameters that ground data acquisition system mainly will be gathered: the natural gamma value (10cm/) on the awl point pressure of probe and sidewall friction resistance and stratum is sampled and record.
Survey data is handled: a, data load, LDO assembly, LDO property pages assembly and log data are separated the marshalling part to fit together, form a comprehensive data management platform, the data load of mainly finishing multiple storage format arrives database, and the data export function is provided simultaneously; B, data processing are fitted together LDO assembly and disposal route component groups, form an interaction process platform, and main passing through calculated the geologic parameters such as shale index on stratum to DATA PROCESSING such as natural gamma and frictional resistance data, accurately divides the stratum; C, drawing, to the translation of curve march splicing, the curve degree of depth and numerical value, curve linear proofread and correct, the correction of curves shift, curve filtering, curve resample and the mouse editor on the throne of curve numerical value and the operations such as direct editor of numerical value, and show or print all kinds of maps;
Workflow manager is assembled into workflow with the task that defines, and is presented in a flowchart on the screen, and geomatics engineer is worked according to process flow diagram with following the prescribed order.Workflow manager can also with the interapplication communications of its control, the execution of auto-initiation application program.The workflow that defines can be stored in the database, so that use next time, realizes that simultaneously the network information is shared;
Data exchange program is separated the marshalling part with LDO assembly, LDO property pages assembly and log data and is fitted together, and forms a comprehensive data management platform, and the data load of finishing multiple storage format arrives database, and the data export function is provided simultaneously;
Data processor is fitted together LDO assembly and disposal route component groups, forms an interaction process platform, by to DATA PROCESSING such as natural gamma and frictional resistance data, calculates the geologic parameters such as shale index on stratum, accurately divides formation lithology;
Plotter program is used for the translation of map march splicing, the curve degree of depth and numerical value, curve linear correction, the correction of curves shift, curve filtering, curve are resampled and the mouse editor on the throne of curve numerical value and the operations such as direct editor of numerical value, and the pictorial information of drawing template and well is stored among the LogDB, realize that network shares;
Formation lithology is estimated: the soil layer of a, static point resistance is less, the sidewall friction resistance is bigger interval representative mostly is clay seam; The soil layer of the interval representative that b, static point resistance are big, the sidewall friction resistance is smaller then is the sand layer; The ratio of c, sidewall friction resistance and static point resistance, promptly frictional ratio FR=fs/qc * 100% also is to divide the fabulous parameter of soil layer, the FR of cohesive soil is often greater than 2%, and the FR of sandy soil often is less than or equal to 1%; D, I
GR＜15% is sandstone, 15%＜I
GR＜50% is dirty sandstone, 50%＜I
GR＜85% is the chiltern mud stone, I
GR＞85% is mud stone.
According to shown in Figure 2, the shallow table stratum measurement result map that carries out in Gaoqing city east Nanjing University about 10 kilometers position probing point 001 hole, 20 meters of hole depths, from the figure as can be seen, the data correspondence that gamma ray curve and static(al) are surveyed is fine, and the variation of lithology is had tangible response.4.4～9.7m interval for example, natural gamma numeric ratio top interval is obviously on the low side, and this is the demonstration that the stratum sand cut increases, judge according to containing the shale index value, this layer is a shale sand layer, and middle part 6.7～7.3m interval natural gamma numerical value increases in the layer, illustrates that shale increases; And static point resistance and sidewall friction resistance obviously increase than the numerical value of top interval, frictional ratio is greater than 1 but less than 2, this is the feature of shale sand layer, and static point resistance and sidewall friction resistance in the middle part of in the layer reduce, frictional ratio increases, and illustrates that this place's clay content increases.Therefore this interval comprehensive evaluation analysis result is a muddy sand, and middle 6.7～7.3m interval is the chiltern dirt bed.This and boring with sampling data are very identical.
The above embodiment is a kind of of the more preferably concrete embodiment of the utility model, and common variation that those skilled in the art carries out in the technical solutions of the utility model scope and replacement all should be included in the protection domain of the present utility model.
Claims (5)
1. near surface lithology detection instrument, its structure comprises driving mechanism and measurement mechanism; It is characterized in that: described driving mechanism is the hydraulic pressure perforation device that places on the mobile vehicle, and described measurement mechanism comprises underground probe and collection display system of ground data on the ground and survey data processing platform; Described hydraulic pressure perforation device connects the probe of underground survey device by feeler lever.
2. a kind of near surface lithology detection instrument according to claim 1 is characterized in that: described probe comprises natural gamma probe and the pressure probe that interconnects by the frictional resistance probe, and described natural gamma probe connects feeler lever; Described probe connects ground data on the ground by the cable that places feeler lever and gathers display system and survey data processing platform.
3. a kind of near surface lithology detection instrument according to claim 1 and 2 is characterized in that: described mobile vehicle is to have the vehicle of casing and the counterforce device during as the downward injection of hydraulic pressure perforation device, and described hydraulic pressure perforation device places in the casing of vehicle.
4. a kind of near surface lithology detection instrument according to claim 1 and 2, it is characterized in that: described hydraulic pressure perforation device provides power by mobile vehicle, connects and driving feeler lever and probe by hydraulic jack; That described hydraulic pressure perforation device also includes is left and right, back windlass and earth anchor and controlled by each time windlass joystick down; Described feeler lever also is connected with the angle machine.
5. a kind of near surface lithology detection instrument according to claim 4, it is characterized in that: the injection that described hydraulic pressure perforation device also comprises the hydrostatic control operator's console, be used for controlling hydraulic jack and feeler lever rises pulls out handle, also comprise the feeler lever storage and the auxiliary fuel tank that are used for storing feeler lever and oil simultaneously, described mobile vehicle outer setting has a plurality of hydraulic legs, and described supporting leg is controlled by the joystick of hydraulic pressure perforation device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120103356XU CN202057809U (en) | 2011-04-11 | 2011-04-11 | Near surface lithology detector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201120103356XU CN202057809U (en) | 2011-04-11 | 2011-04-11 | Near surface lithology detector |
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| CN202057809U true CN202057809U (en) | 2011-11-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102279417A (en) * | 2011-04-11 | 2011-12-14 | 中国石油化工集团公司 | Near-surface rock character detection instrument and method |
| CN105301668A (en) * | 2014-07-04 | 2016-02-03 | 中石化石油工程地球物理有限公司胜利分公司 | Wireless probe used for near-surface multi-parameter lithology detection |
-
2011
- 2011-04-11 CN CN201120103356XU patent/CN202057809U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102279417A (en) * | 2011-04-11 | 2011-12-14 | 中国石油化工集团公司 | Near-surface rock character detection instrument and method |
| CN105301668A (en) * | 2014-07-04 | 2016-02-03 | 中石化石油工程地球物理有限公司胜利分公司 | Wireless probe used for near-surface multi-parameter lithology detection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111130 Termination date: 20140411 |