EP1688584A1 - Autonomous measurement and treatment sonde for borehole pre-production investigation - Google Patents

Abstract

A probe has an electronic board with a processing module for processing measurement provided by geophones and a pressure sensor. Detachable elastic strips (3-6) anchor the probe at a casing of a base of a well. A central body (1) is crossed integrally in its length by passage orifices (2) in order to leave a free passage across the probe when its in anchored position.

Description

The present invention relates to a probe intended to be lowered at the bottom of a well, in particular a well in an oil or gas reservoir.

More particularly, the invention relates to a measuring probe, autonomous, intended to be lowered into a casing to be temporarily installed at the bottom of the well.

It is known that the exploitation of a hydrocarbon reservoir presents for an operator significant risks, especially in financial terms.

Indeed, the amount of hydrocarbons that can be brought to the surface in relation to the total amount in the reservoir depends on the geology of the well and the production technique.

Therefore, it is generally desirable to have a better knowledge of the geology, the morphology of the reservoir and the displacements of the different fluids (water, gas, oil) in the reservoir during production.

By way of example, such knowledge makes it possible to improve the hydrocarbon extraction efficiency of the reservoir.

In this regard, in order to better understand the reservoir, it is known to measure parameters such as resistivity, porosity, permeability, in an exploration borehole so as to know in particular whether the reservoir contains gas or oil and if so, in what quantity.

On the other hand, another question that one generally wants to answer is whether the gas or oil in the tank can be easily extracted.

As mentioned above, the optimization of the production is a very important element of the exploitation of the reservoir.

For example, if it is possible to extract a few percent more hydrocarbons, not only the profitability of the operation is increasing but the quantity of exploitable hydrocarbon reserves is also increasing.

One technique that improves the recovery rate of hydrocarbons is, among other things, to inject into the reservoir a fluid under pressure so as to fracture the reservoir rock and thereby allow a more efficient drainage of the hydrocarbons to the well. production.

Also, during the production of hydrocarbons it is important to know the way in which flows of fluids are made so as to verify that certain areas of the reservoir do not remain isolated and that the drainage is homogeneous and optimum.

For this purpose, a known technique consists in lowering the measuring instruments attached to the outside of the casing (so as not to hinder production) so as to follow the quality of a hydraulic fracturing planned for the drainage, then to locate, thanks to to acoustic emissions generated by the flows, the movements of the different fluids present in the reservoir.

Another known technique is to use observation wells to allow similar measurements to be made without hindering production.

However, these techniques, although effective, remain complex and expensive to implement.

An aim of the invention is to make it possible to carry out a pre-study of an area in order to characterize over a short period of time the interest that will be represented by a permanent installation of measuring instruments and in particular to allow the characterization of hydraulic fracturing. .

In order to achieve such a goal, the invention proposes a measuring probe and autonomous treatment capable of being installed and then temporarily abandoned at the bottom of the well, for example under the casing.

• des moyens d'ancrage amovibles aptes à ancrer la sonde à un cuvelage au fond du puits,
• un ensemble de capteurs, dont au moins un capteur sismique,
• des moyens d'enregistrement,
• des moyens de traitement des mesures fournies par les capteurs, et
• un corps central traversé intégralement dans sa longueur par un orifice de passage de sorte à laisser un passage libre à travers la sonde lorsqu'elle est en position ancrée.

Its implementation does not require significant logistics and it is not necessary to maintain a wired connection with the surface.
More specifically, the invention proposes a measurement probe and autonomous treatment intended to be lowered into a casing to be temporarily installed at the bottom of a well, characterized in that it comprises:

• removable anchoring means capable of anchoring the probe to a casing at the bottom of the well,
• a set of sensors, including at least one seismic sensor,
• recording means,
• means for processing the measurements provided by the sensors, and
• a central body integrally traversed in its length by a passage opening so as to leave a free passage through the probe when in the anchored position.

• une partie longitudinale du corps central a la forme d'un canal en U, définissant une espace vide qui correspond à une partie de l'orifice de passage lorsque la sonde est ancrée et permettant d'y accueillir les capteurs, les moyens d'enregistrement ainsi que les moyens de mesure lorsque la sonde est fermée ;
• la sonde comporte deux moyens d'ancrage comprenant chacun deux lames élastiques arquées, l'une étant reliée à un élément coulissant situé à une extrémité de la sonde, l'autre étant reliée au corps central de la sonde à l'extrémité opposée de celle-ci ;
• l'élément coulissant coulisse par rapport au corps central de la sonde suivant l'axe X, de sorte que les moyens d'ancrage sont soumis à des forces qui les amènent à s'écarter ou se rapprocher du corps central selon le sens de coulissement de l'élément coulissant ;
• l'un des moyens d'ancrage supporte les capteurs, les moyens d'enregistrement ainsi que les moyens de traitement ;
• le corps central possède un creux pour que la sonde puisse être temporairement mise en prise par un outil de pose ou un tubage enroulé ;
• la sonde comporte en outre un moyen de communication ;
• le moyen de communication est apte à communiquer, notamment avec l'outil de pose ou le tubage enroulé ;
• l'ensemble de capteurs comporte au moins un capteur de pression et au moins un capteur de température ;
• le capteur au moins prévu apte à mettre en oeuvre les mesures sismiques est constitué de géophones et/ou d'accéléromètres et/ou d'hydrophones ;
• une extrémité haute du corps central est conformée pour qu'elle puisse être disposée dans une extrémité basse du tubage, en particulier lorsque la sonde est ancrée au cuvelage ;
• les moyens d'enregistrement comprennent au moins une mémoire de données ;
• les moyens de traitement sont en particulier un processeur de données numériques ;
• la mémoire contient des données relatives notamment :
  • * aux mesures issues des capteurs,
  • * à des algorithmes qui, en coopération avec le processeur sont aptes à traiter ces mesures, et
  • * à des résultats obtenus après mise en oeuvre par le processeur d'au moins un de ces traitements ;
• les moyens de communication sont aptes à télécharger les algorithmes de la sonde de pose vers l'une au moins des mémoires de la sonde ;

Preferred, but not limiting, aspects of this probe are the following:

• a longitudinal portion of the central body has the shape of a U-shaped channel, defining a void space which corresponds to a portion of the passage opening when the probe is anchored and for accommodating the sensors, the recording means as well as the measuring means when the probe is closed;
• the probe comprises two anchoring means each comprising two arched elastic blades, one being connected to a sliding element located at one end of the probe, the other being connected to the central body of the probe at the opposite end of that -this ;
• the sliding element slides relative to the central body of the probe along the X axis, so that the anchoring means are subjected to forces that cause them to move away from or closer to the central body in the direction of sliding the sliding element;
• one of the anchoring means supports the sensors, the recording means and the processing means;
• the central body has a recess for the probe to be temporarily engaged by a laying tool or wrapped tubing;
• the probe further comprises a communication means;
• the communication means is able to communicate, in particular with the laying tool or the casing wound;
• the sensor assembly comprises at least one pressure sensor and at least one temperature sensor;
• the at least one sensor capable of implementing the seismic measurements consists of geophones and / or accelerometers and / or hydrophones;
• an upper end of the central body is shaped so that it can be disposed in a lower end of the casing, particularly when the probe is anchored to the casing;
• the recording means comprise at least one data memory;
• the processing means are in particular a digital data processor;
• the memory contains relative data including:
  • * measurements from sensors,
  • * algorithms that, in cooperation with the processor, are able to handle these measurements, and
  • * results obtained after implementation by the processor of at least one of these treatments;
• the communication means are able to download the algorithms of the laying probe to at least one of the memories of the probe;

Another object of the invention is the use of this probe to control hydraulic fracturing in a well, in particular hydrocarbons.

Thus, an advantage of the invention is that its installation is relatively simple to implement.

And because of this fact, this probe being autonomous, it can be easily abandoned at the bottom of the well for a chosen period of time and then recovered, as many times as necessary.

Furthermore, an advantage of being able to be abandoned is that it no longer encumber the well of the troublesome presence of cables that connect it to the surface.

And so, the passage of an additional instrument in the well is extremely easy.

Another advantage is that this probe is arranged so as to implement typical operations of a well exploitation despite its presence.

As such, the probe of the invention is particularly suitable for hydraulic fracturing can be implemented in the well.

One can even consider using this probe to control such a fracturing process.

For this purpose, the measurement of data from the sensors of the probe makes it possible in particular to analyze conditions in which the fracturing process takes place and to adapt the latter if necessary.

The invention also provides an advantage in financial terms.

By way of non-limiting example, thanks to the probe it is possible to obtain a first seismic analysis of a well installed but without measuring instruments.

It avoids the significant cost generated, for example, by disassembling the casing, placing the instruments in, and then reassembling the casing in the well.

• la figure 1 montre la sonde de l'invention selon une vue d'ensemble de côté,
• la figure 2 montre la sonde de l'invention vue suivant un angle parallèle à un axe longitudinal X de celle-ci,
• la figure 3 illustre un exemple d'agencement d'un boîtier comportant des instruments de mesure de la sonde,
• la figure 4 illustre un exemple d'agencement de géophones et de capteurs de pression dans le boîtier,
• la figure 5 est une coupe transversale de la sonde lorsqu'elle se trouve dans une configuration qui lui permet d'être déplacée, à savoir que les moyens d'ancrage sont rabattus dans le corps principal,
• la figure 6A montre une sonde de pose selon l'invention en vue transversale,
• la figure 6B montre en vue rapprochée transversale une partie de la sonde de pose de la figure 6A, en particulier une partie où l'on peut clairement distinguer des ergots coopérant avec une tête de guidage,
• la figure 7 représente sommairement une coupe longitudinale d'un puits ainsi qu'un emplacement d'ancrage de la sonde préféré de l'invention, les dimensions n'étant pas respectées.

Other aspects, objects and advantages of the present invention will appear better on reading the following detailed description of a preferred embodiment thereof, given by way of nonlimiting example and with reference to the appended drawings. on which ones :

• FIG. 1 shows the probe of the invention according to an overall view from the side,
• FIG. 2 shows the probe of the invention seen at an angle parallel to a longitudinal axis X thereof,
• FIG. 3 illustrates an exemplary arrangement of a housing comprising measuring instruments of the probe,
• FIG. 4 illustrates an example of arrangement of geophones and pressure sensors in the housing,
• FIG. 5 is a cross-section of the probe when it is in a configuration that allows it to be displaced, namely that the anchoring means are folded down in the main body,
• FIG. 6A shows a laying probe according to the invention in transverse view,
• FIG. 6B shows in a transverse close-up view a part of the laying probe of FIG. 6A, in particular a part where one can clearly distinguish lugs cooperating with a guide head,
• Figure 7 is a summary of a longitudinal section of a well and an anchor location of the preferred probe of the invention, the dimensions are not respected.

The probe as proposed by the invention is shown in FIG. 1 according to an overall side view while FIG. view of this probe at an angle parallel to a longitudinal axis X of the probe.

It will be noted here that the longitudinal axis X corresponds to a vertical axis when the probe is in a position of usual use, namely in the well.

As can be seen in these figures, the probe comprises a central body 1 integrally traversed along the axis X by a passage opening 2.

More precisely, the body comprises two identical cylinder-shaped parts 1 'and 1 "traversed centrally along the X axis by the orifice 2.

According to a variant of the invention, the shape of the upper end of the central body of the probe may be arranged in such a way as to be able to leave this end just in the lower outlet of a casing, even when the probe is anchored to a casing.

Between the two identical parts is interposed a channel 1 "'substantially U-shaped.

At the top of the probe, the inner wall of the main body 1 has a cylindrical recess in which retaining lugs of a laying tool can be integrated.

It will be noted here that according to the invention, it is also envisaged alternatively that the probe is adapted to be engaged by a coiled casing (a coiled casing is commonly referred to as "coil tubing" in the English language) so that the latter can raise it from the bottom of the well.

For this purpose, the wound casing may comprise the same hooking means as the laying probe (described below), in particular retaining lugs capable of integrating into the hollow of the cylinder of the main body of the probe.

The probe further comprises anchoring means 3-6, movable, arranged laterally on either side of the main body 1 and which extend along the axis X.

It will be noted that FIGS. 1 and 2, in particular, represent the probe in a particular configuration.

Indeed, it is pointed out that the probe is seen here with anchoring means 20 and 21 deployed, which makes possible an anchoring of the probe, for example at a casing.

We will see later and through other figures that the anchoring means 20 and 21 may also have a different configuration.

In the embodiment of the invention and in the active anchor configuration presented in particular in FIGS. 1 and 2, the probe therefore has two anchoring means 20, 21 disposed on either side of the X axis. .

Each anchoring means preferably has a pair of elastic blades substantially arcuate towards the main body 1.

More specifically, a first pair 3, 5 is opposite the U channel while a second pair 4, 6 is arranged on the other side of this U, that is to say facing the rear face of the U U-channel

Furthermore, for each pair of blades, one end is pivotally mounted on a sliding member at the top of the probe in alignment with the central body, while the other end is pivotally mounted on the central body 1 at the bottom. of the probe, and in such a way that the pairs are also substantially aligned along the longitudinal axis X.

The two elastic blades 4, 6 are connected at their respective distal end to a half-tube 8 extending in parallel with the longitudinal axis X of the body 1 and turned towards the latter and having a certain rigidity so as to constitute for the probe a robust lateral support against a wall, such as that of a casing.

The distal ends of the two resilient blades 3, 5, for their part, are connected to a housing 9 inside which there is equipment capable of performing seismic analyzes, in particular recording acoustic events.

Regarding the sliding element on which one end of each pair of blades is pivotally mounted, it is perfectly integrated with the central body 1 and is slidable relative thereto along the X axis.

Moreover, this sliding element also comprises a through orifice along the axis X so as to ensure continuity of passage between the top and the bottom of the probe with the orifice 2.

As regards now the housing 9, it extends along the X axis between the two resilient blades 3 and 5 and the equipment it supports is spatially distributed along this axis.

In a preferred embodiment of the invention, the equipment comprises in particular a set of sensors, recording means such as data memories for example, and measuring means.

More precisely, it comprises seismic sensors, such as geophones 10 (preferably three), a pressure sensor 11 and a temperature sensor, an electronic card 12 including a processing module comprising a computing unit, such as for example a DSP ( an acronym for "Digital Signal Processing" in English or a processor, able to implement algorithms to provide results including measured data, batteries 12 'able to supply all equipment, and a hydrophone 13 (see Figures 3 and 4 in this regard).

It also contains a communication means (not shown) which allows the probe to communicate in particular with the laying tool, which possibly redirect the communication by means of an appropriate cable to the control unit located on the surface.

It will be noted that the communication means may also be able to communicate using coiled tubing equipped for this purpose with a communication means such as a communication cable.

The use of such communication may be particularly advantageous to allow installation in a horizontal well.

As a means of communication, it will be possible to use all the known technologies in the field.

The invention contemplates in particular the use of a communication system whose connection is established by means of a connector or a wireless communication system (low frequency radio signal or even radio, inductive effect, etc.).

Figure 5 is a representation of the probe when in a configuration that allows it to be moved, so not anchored.

In this configuration, the anchoring means 20, 21 are folded as far as possible towards the central body 1 so that the probe occupies a smaller space on its sides.

In this respect, it can be seen from FIG. 5 that the probe is then arranged in such a way that it advantageously has a diameter substantially equal to the outside diameter of the central body 1.

This is made possible by the particular shape of the latter, in particular the U-channel shape.

Such a channel makes it possible in fact that a part of the passage opening 2, and thus of the free space thus defined, serves in particular to accommodate the housing supported by the elastic blades 3, 5.

Referring now to FIG. 6, the laying tool comprises a tube 29 in which is installed, along the longitudinal axis X, a motor 30, preferably a DC motor, equipped with a gear ratio which, by by means of a ball screw 31 moving guide a guide head 32 along the axis X.

Part of this guide head 32 is outside the tube, while the other part is in the tube 29 in engagement with the ball screw 31.

The guiding head 32 of substantially cylindrical shape has on one contour an inclined recess so that the head has a connecting slope 35 along the axis X.

This recess is adapted to form a fulcrum at an upper edge of the sliding element of the probe.

The tube 29 is provided, through a thickness of its lower end, pins 33, 34 pivotally mounted along an axis orthogonal to the axis X.

These lugs 33, 34 are arranged so as to cooperate with the guide head 32.

In particular, when the head 32 is subjected to displacement along the X axis downwards, that is to say towards the probe, there comes a moment when its position in the tube is such that the lugs, which were fully integrated in a thickness of the tube, pivot, thus bringing out one of their ends out of the thickness of the tube 29.

One end of these lugs thus protrudes towards the outside of the tube, which makes it possible to constitute a possible hooking means of the probe when they take place in the hollow of the central body 1 provided for this purpose.

The laying tool also has a means which makes it possible, especially when it has descended into a well to recover the probe, to effectively detect a moment of docking with the latter.

By way of non-limiting example, this means may be a Hall cell cooperating with a magnet installed in an upper part of the central body of the probe.

The laying tool also has a communication means able to communicate with the probe.

Of course, this communication means is adapted to that of the probe, in particular to ensure that a communication can be established at least when the laying tool is hooked to the probe (for example during a descent of the probe at the bottom of the well or when rising to the surface or during a calibration phase).

By way of nonlimiting example and as mentioned above, the communication means may be a connector capable of cooperating with that of the probe, or a wireless transmitter / receiver.

We will now describe an operation and use of the invention.

By way of non-limiting example, it is assumed that the probe is at the head of the well and that it must be lowered to the bottom of it.

The probe is first attached to the installation tool and is located vertically below it.

The laying tool is suspended vertically from the surface by a cable comprising at least one electrical conductor, such as a single-conductor cable or a coaxial cable.

As mentioned above, in addition to such a holding function, this cable makes it possible to communicate with the control unit on the surface, the laying tool thus serving as a relay between the latter and the probe itself.

The anchoring means of the probe are folded towards the central body so that it can be lowered without difficulty along the well.

For this purpose, the guide head of the laying tool is in a position where the lugs 34, 33 protrude outwards and come to take place in said cylindrical hollow arranged in the thickness of the main body.

The body of the probe is thus held vertically by these lugs.

At the same time, the guide head 32 abuts on said sliding element so that when, via the motor and the ball screw, the guide head slides downwards in the tube, it pushes said element sliding downwards while the central body is held in fixed position by the lugs.

Therefore the resilient blades 3, 4 connected to the sliding member are subjected to a downward force, while the blades 5, 6 connected to the central body undergo a pulling force upwards.

Because of this, and thanks to their elasticity, the blades are taut and adopt a more rectilinear shape while approaching the central body 1.

The probe is thus lowered to the bottom of the well in this shape configuration.

It is recalled here that a conventional well 50 generally comprises in longitudinal section a first casing 40 on a first distance less than the depth of the well, a second casing 41 over the entire depth, and a casing 42 covering largely the second casing 41 (see Figure 7).

And the well ends with a cement plug 43 obstructing any passage including liquid or gas.

Therefore, according to a preferred mode of use of the invention, the probe is installed entirely under the lower part of the casing 42 so that the side walls of the second casing 41 are accessible and that the probe can be anchored (see Figure 7).

As mentioned above, the shape of the upper end of the central body of the probe may be arranged, alternatively such that it can leave this end just in the lower outlet 45 of the casing.

Therefore, according to this variant, the probe can also be installed essentially under the lower part of the casing 42 but a part, in part particular the upper end of the central body, remains at the outlet of the casing between the walls thereof.

In this way, the installed probe remains aligned with the well, it facilitates its subsequent recovery with the laying tool.

Indeed the guide head will easily find the entrance to the orifice 2 and it can penetrate quickly.

Once positioned, the probe is anchored by moving the guide head of the laying probe upward, ie toward the surface.

This time, the thrust forces of the guide head on the sliding element and traction of the central body by the lugs disappear, at least diminish.

In particular, the lugs protruding from the tube reintegrate the thickness of the tube by pivoting and thus leave the location provided in the hollow of the central body.

Therefore, by moving the guide head upwards, the anchoring means gradually resume an arcuate rest position and then exert a significant force against the wall of the second casing, which anchors the probe.

As it will be understood the laying tool releases the probe, however the communication with it is not broken.

At this stage, we can already perform functional tests and implement calibrations.

It is then possible to perform seismic, temperature and pressure analyzes in order, for example, to make a first diagnosis of the well and to possibly adjust recording parameters using, for example, algorithms contained in a memory of the probe.

In this respect the invention provides that the algorithms can be modified at least as long as communication is made possible with the surface, in particular through the laying probe.

For this purpose, we can download a new algorithm to replace another or to complete the latter.

And this download can be implemented using the communication means between the probe and the laying tool (the laying probe in this example).

Then, the laying probe can be disconnected from the probe and raised to the surface.

From there, other types of analysis can begin.

In particular, seismic analyzes can serve as an aid to the control of a hydraulic fracturing process, known per se.

Recall in this regard that in a conventional hydraulic fracturing process, is injected under high pressure a fluid with mineral fillers in the well.

There may then be an excess of charge which is formed and which should generally be removed by means of coiled tubing.

The probe of the invention offers the advantage of not hampering this cleaning operation thanks to its passage opening 2.

Indeed, on the one hand the wound casing can be inserted freely and on the other hand the excess charge can flow freely in the orifice 2.

As a cleaning means, it is thus possible to place the casing wound in the orifice and to inject a liquid such as water to make up the excess charge through the orifice 2, then upwards of the well.

As a result, not only is the probe no longer blocked by the excess load around it, which would have caused difficulties in the case where it would have been desirable to recover it by means of the laying tool. but still its presence at the bottom of the well does not exclude the implementation of treatments such as, for example, hydraulic fracturing.

On the contrary, as mentioned previously, the probe may advantageously constitute an important aid in controlling such an operation.

First, she is able to record a hydraulic fracturing cycle.

Then, thanks to it, it is possible to control conditions for implementing such fracturing.

In particular, measurements using the pressure sensor (s) make it possible to determine whether it is appropriate to trigger the recordings.

By way of example, these recordings can be triggered by detecting a simple variation of the downhole pressure at the time of a fluid injection cycle.

It is recalled here that the recordings can be controlled by the aforementioned algorithms.

In this respect, these algorithms being modifiable, they can be adapted as long as the probe is connected to the laying tool, or at least from the beginning of the descent into the well until the complete installation of the probe.

For this purpose it suffices for the operator to transmit to the probe, via the laying tool, control signals that make it possible to adapt the algorithms.

In return, the probe transmits confirmation signals to the control center where the operator is located that the adaptations have been implemented successfully.

Moreover, once installed and abandoned at the bottom of the well, it is also expected that the modification of the algorithms can be implemented by reconnecting the installation tool.

In this way, it is possible, for example, after obtaining reservoir analysis results, to initialize the probe processing module, in particular the memories, and to reprogram a different measurement and treatment cycle.

Finally, when it is desired to raise the probe in the casing, the laying probe according to the invention is preferably used.

This one went down into the well until it came into contact with the probe.

For this purpose, the guide head and the means of detecting the moment of docking facilitate this operation.

And when the laying probe is well positioned with respect to the probe, the motor 30 is actuated in particular to move the guide head in the central body 1 so that the anchoring means reintegrate the latter and the laying probe can then pull the probe up the well.

Of course, the invention is in no way limited to the above description and those skilled in the art will understand that many variations are possible.

In particular, the invention does not exclude the use of a standard retrieval tool.

However, in this case it will not be possible to close the anchoring means in the central body of the probe when it will be recovered at the bottom of the well.

The anchoring means will remain deployed and in contact with a wall of the well, so that to raise the probe in the casing, it will be necessary to exert on the standard retrieving tool a traction force greater than that which would be necessary with the laying probe according to the invention.

Claims (16)

Measuring probe and stand-alone treatment intended to be lowered in a casing (42) to be temporarily installed at the bottom of a well (50), characterized in that it comprises: - Removable anchoring means (3-6) able to anchor the probe to a casing (41) at the bottom of the well, a set of sensors (10, 11), including at least one seismic sensor, - recording means, means for processing the measurements (12) provided by the sensors, and - A central body (1) integrally traversed in its length by a passage opening (2) so as to leave a free passage through the probe when in the anchored position. Measuring probe and autonomous treatment according to claim 1, characterized in that a longitudinal portion (1 "') of the central body (1) has the shape of a U-shaped channel, defining a void space which corresponds to a portion of the passage opening (2) when the probe is anchored and for accommodating the sensors, the recording means and the measuring means when the probe is closed, that is to say not anchored. Measuring probe and autonomous treatment according to one of the preceding claims, characterized in that it comprises two anchoring means each comprising two arched elastic blades (20, 21), one being connected to a sliding element located at one end of the probe, the other being connected to the central body of the probe at the opposite end thereof. Measuring probe and autonomous treatment according to the preceding claim, characterized in that the sliding element slides relative to the central body (1) of the probe along the axis X, so that the anchoring means (20, 21 ) are subjected to forces that cause them to deviate or move closer to the central body in the sliding direction of the sliding element. Measuring probe and autonomous treatment according to one of the preceding claims, characterized in that one (20) of the anchoring means supports the sensors, the recording means and the processing means. Measuring and stand-alone treatment probe according to one of the preceding claims, characterized in that the central body (1) has a recess so that the probe can be temporarily engaged by a setting tool, or a coiled casing. Measuring probe and autonomous treatment according to one of the preceding claims, characterized in that it further comprises a communication means. Measuring probe and autonomous treatment according to claim 7, characterized in that the communication means is able to communicate, in particular with the laying tool or the casing wound. Measuring and stand-alone treatment probe according to one of the preceding claims, characterized in that the sensor assembly further comprises at least one pressure sensor and at least one temperature sensor. Measurement and autonomous treatment probe according to claim 9, characterized in that the at least one sensor capable of implementing the seismic measurements consists of geophones and / or accelerometers and / or hydrophones. Autonomous treatment measuring probe according to one of the preceding claims, characterized in that an upper end of the central body is shaped so that it can be arranged in a lower end of the casing (42), in particular when the probe is anchored to the casing (41). Autonomous processing measurement probe according to one of the preceding claims, characterized in that the recording means comprise at least one data memory. Autonomous processing measurement probe according to one of the preceding claims, characterized in that the processing means are in particular a digital data processor. Autonomous treatment measurement probe according to the preceding claim, characterized in that the memory contains relative data in particular: - measurements from the sensors, - algorithms which, in cooperation with the processor are able to handle these measurements, and - Results obtained after implementation by the processor of at least one of these treatments. Autonomous treatment measurement probe according to the preceding claim, characterized in that the communication means are able to download the algorithms of the laying probe to at least one of the memories of the probe. Use of a probe according to any one of the preceding claims for controlling hydraulic fracturing in a well (50), in particular hydrocarbons.

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