RU2590636C2 - Control device for gravel filter interior column - Google Patents

Abstract

FIELD: mining.

SUBSTANCE: group of inventions relates to mining and can be used in borehole layout. Assembly has a housing with casing channel outlet openings for suspension and filters for fluid mud. Inner column is deployed in housing to perform installation of gravel toe to heel. Telescopic adjustment device (30) provides inner column lengths fit properly when deployed to toe layout. Control device (30) comprises first member (60) connected to one part of inner column; second member (40) telescopically connected to first member and connected to another portion of inner column; at least one ratchet device (65) arranged on first element (column 4, lines 22-28); and at least one safety device (50) disposed on second member and movable relative to at least one ratchet device. Sealing surface of device location in housing is separated isolated space and compacted on seals on inner column arranged to displace in housing. Fluid is pumped in column, provides increase of pressure, when opening column is connected with insulated space. Pressure increase indicates that tool is set to first location in layout, and other provisions for installation of tool can then be calculated with reference to it.

EFFECT: technical result consists in improvement of efficiency of well completion.

19 cl, 9 dwg

Description

BACKGROUND OF THE INVENTION

Some oil and gas wells are completed in unconsolidated formations containing unbound fine material and sand. When fluids are extracted from such wells, unbound fine material and sand can migrate with the produced fluids and can damage equipment such as electric submersible pumps (ESPs) and other systems. For this reason, finishes may require filters to control the entry of sand.

Horizontal wells that require sand control usually go through completion with open hole. In the past, the use of autonomous sand filters in these horizontal open-hole trunks prevailed. At the same time, operators also use the installation of gravel filters in these horizontal uncased trunks to combat the entry of sand. Gravel is a particulate material specially selected for particle size, such as sorted sand or proppant, which is packed around a sand filter in the annular space of a wellbore. The gravel used acts as a filter, preventing the migration of any formation fine particles and sand with produced fluids.

In the layout of a gravel pack for a horizontal open hole, proper linear alignment of the internal service tool relative to the external components of the layout can be especially important. Operators typically lower pipe lengths of a fixed length to the layout and rely on measuring and recording the length of the existing pipe links to determine if the length of the service tool in the layout is adjusted appropriately. Unfortunately, the lengths of any filters and service tools in a horizontal open hole can be significant, and relying on measurements and recording pipe lengths to get the correct alignment can run into difficulties.

In addition, the service tool for arranging the gravel pack is typically moved to perform various functions while packing the gravel pack. Due to the depth of the well, deviation, elongation of the tubing, friction, and also depending on the type of completion with a gravel pack, determining the position of the service tool at the bottom of the well in the layout can be very difficult. The above is particularly true in termination with a long horizontal gravel filter. As a result, pumping a sand slurry when the tool is in the wrong position in the layout can cause the tool to seize and can have disastrous consequences.

Typically, prior art uses mechanical taper bushings to locate a service tool in an arrangement. In addition, smart cone bushings are used that move back and forth between the unlocked position and the bonded position to reliably identify the location of the service tool. Unfortunately, mechanical indications may not always work due to high braking forces and other problems associated with moving a service tool in a well assembly.

The object of the present invention is aimed at overcoming or at least reducing the impact of one or more of the problems described above.

SUMMARY OF THE INVENTION

As indicated above, the proper linear alignment of the internal service tool relative to the external components of the well assembly can be particularly important. To solve this problem, a device is used that controls the length of the inner string deployed in the borehole assembly, such as the arrangement of a gravel pack located from toe to heel. The device has first and second (pipe) elements telescopically connected together. The first element is connected to one section of the inner column, and the second element is connected to another section of the inner column. The ratchet device located on the first element can interact with the catcher on the second element to fix the length of the regulating device. The ratchet device may include a latch having a plurality of chamfered teeth. The catcher moving relative to the ratchet device may include many grooves formed around the outer part of the second element for interaction with the teeth of the ratchet latch.

The inner string and device are deployed in a borehole assembly to determine the proper fit of the length of the inner string for subsequent work, such as installing a gravel pack. When the deployment takes place, the first and second elements of the device are in the extended position. When the inner column, as a result of the descent, touches the bottom in the arrangement, the ratchet device allows the second element to move in one direction relative to the first element, so that the device can be folded and shorten the inner column. The key between the two elements can move in the groove, which ensures the sliding of the two elements relative to each other, excluding rotation.

When the inner string is then lifted from the well assembly, the ratchet device engages with the catcher (i.e., the teeth on the latch engage with the grooves) to prevent the second element from moving in the opposite direction relative to the first element. However, the device does not extend again when the inner column is raised to the wellhead so that the device retains one fixed length.

When the device is raised to the surface, operators can fix a constant fixed length of the control device, determined at the bottom of the well, by installing a blocking element between the first and second telescopic elements. For example, operators can replace ratchet latches with chamfered teeth with locking latches with straight teeth. The locking latches coupled to the catches of the catcher must prevent the second element from moving in any direction inside the first element.

As indicated above, knowing the location of the borehole inner string in the borehole assembly may assist in the execution of the work. To successfully complete the work, a well assembly, for example a gravel pack assembly, has a housing that forms a through channel passing through the housing. The first sealing surfaces or nests located in the housing channel separate the insulated space in the housing channel. For example, these sockets can be polished surfaces in the housing channel, having a diameter smaller than that of the rest of the channel.

An inner column, such as an inner gravel pack layout column, is movably mounted in the housing channel and forms a channel for maintaining hydraulic communication from the pump on the surface to the outlet window on the inner column. The valve in the channel may divert the pumped fluid through the outlet port.

The first seals located on the inner column are selectively sealed in the first seats when the inner column moves in the housing. When this happens, the outlet window maintains fluid communication pumped into the enclosed space of the casing, giving a measurable increase in pressure. Using pressure growth as an indicator, the first position of the inner string can then be correlated to the known location of the insulated space in the well assembly. The second position for the inner string in the housing can then be calculated based on the known distance in the well assembly from the first location to the second location of another element, such as a window in the layout. Gaining the ability to determine positions for the inner string allows operators to more accurately and reliably install the inner string at the desired locations in the well assembly while filling the gravel pack or other jobs.

The foregoing summary does not describe possible individual embodiments or aspects of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

In FIG. 1 shows a gravel pack arrangement having a control device and a hydraulic positioning device for an inner column.

In FIG. 2 shows a cross section of a control device according to the present invention.

In FIG. 3 shows a detail of a ratchet latch and grooves for an open adjusting device.

In FIG. 4A-4B show a control device in a fully folded position along various section planes.

In FIG. 5A shows a portion of a layout and a positioning device in an initial interaction step.

In FIG. 5B shows a portion of the layout and a positioning device in a seal engaging step.

In FIG. 5C shows a portion of a layout and a positioning device in a subsequent interaction step.

In FIG. 6 shows a portion of an arrangement having another positioning device with an integrated housing.

DETAILED DESCRIPTION OF THE INVENTION

A. Well layout

In FIG. 1 shows a borehole assembly 100 having a control device 30 and a placement device 160 according to the present invention. The wellbore assembly 100 shown is a gravel pack arrangement, although other types of arrangements used in the well may benefit from the disclosed devices 30 and 160. As an example, the liner cementing arrangement in an open hole well may benefit from the disclosed devices 30 and 160. In view of the benefits of the present invention, the use of one or both of the devices 30 and 160 in other suitable borehole arrangements should be apparent to one skilled in the art.

The gravel pack arrangement 100 has several gravel pack sections 102A-B, but the layout 100 may generally have one or more gravel packs. With several sections 102A-B, however, the layout segments 100 are divided into collector zone blocks, so that several proppant gravel pack and fracturing operations can be performed in the wellbore 10. Insulating elements 104, such as packers, can be placed between these gravel pack sections 102A-B to isolate them from each other.

In any case, the gravel pack arrangement 100 may be similar to the gravel pack arrangements disclosed in U.S. application incorporated by reference, serial No. 12/913981. Meanwhile, the gravel pack arrangement 100 is a gravel pack system located from toe to heel of the horizontal wellbore, which provides operators with gravel filling of the wellbore 10 of the well toe in each section 102A-B. In the configuration shown, each gravel pack section 102A-B has two filters 140A-B, alternative path devices or shunts 150 and windowed housings 130A-B with windows 132A-B, although any of the other disclosed variations may be used.

Briefly, gravel pack installation operations with arrangement 100 include first lowering the inner column 110 into the first gravel pack section 102A. The lifting device 20 manipulates the inner column 110 and can use any of the lifting methods known in the art. During the operation, the pumping system 22 can pump fluid and / or slurry to fill the gravel pack or to fracture using proppant down the inner string 110 in the desired mode, and pressure gauge 24 can detect an increase in pressure due to fluid injection. Many of these elements are common components and are not described in detail here.

When the inner string 110 is deployed in the arrangement 100, the packer 14 from the wellhead on the liner hanger and other packers 104 along the arrangement 100 remain inoperative. The operators pump the flushing fluid through the inner column 110, and the circulation fluid exits the outlet ports 112 of the column and passes through the column shoe 122 with the check valve of the shoe zone 120 at the end of the first section 102A. When washing the wellbore 10, the circulation fluid passes through the annular space to the wellhead, and the fluid may enter the casing 12 and return to the surface.

After washing and installing the packers 14 and 104 in the operating position in the layout 100, it is possible to start filling the gravel pack. The outlet ports 112 of the column are sealed in fluid communication with their bottom seals 114A in the first casing 130A of the first section 102A by means of their seals 114. The positioning of the column windows 112 relative to the supply windows 132A requires operators to calculate distances and determine the position of the column in the layout 100 relative to the locations of the windows. To assist in these procedures, the arrangement 100 utilizes a hydraulic placement device 160, discussed in detail below. As shown, the device 160 is preferably located between the shoe area 120 and the windowed casing 130A.

Once the windows 112 of the column are connected to the first windows 132A, the suspension can be pumped down inside the column 110 for laying a gravel filter and for hydraulic fracturing using proppant formation surrounding the wellbore 10. When the suspension enters the annular space of the wellbore, the gravel pack of the first section 102A is laid in the toe-to-heel device, as discussed in detail in U.S. application incorporated by reference, serial No. 12/913981.

When sand falls on this window 132A, the inner column 110 may again move so that the outlet windows 112 are isolated on the upper supply windows 132B connected to the shunts 150 in this first section 102A. The slurry pumped down the inner string 110 can then fill the annular space of the wellbore around the lower end of the shoe zone 120, which can be done to further gravel the wellbore 10 or to dispose of excess slurry from the string 110.

The operations can then be continued with the repetition of similar steps, moving up the wellbore 10 for each of the subsequent gravel pack sections (for example, 102B), separated by packers 104 installed between them. Once again, additional details and steps in the operation of the gravel pack system located from the toe to heels of the horizontal trunk 100 of FIG. 1 are given in U.S. application incorporated by reference, serial No. 12/913981; therefore, they are not repeated in detail here.

B. Regulator

As indicated above, the proper linear alignment of the service tool relative to the components of the outdoor arrangement can be important, especially in a horizontal open hole. Instead of lowering pipes of a fixed length and taking into account the data of the pipe register with the pipe lengths to obtain the correct spacing for the inner string 110, operators insert a control device 30 into the inner string 110 above the outlet windows 112 and seals 114. The device 30 provides the operators with the proper alignment, which is even more important in the toe to heel arrangement 100 of the present invention.

Moreover, the inner column 110 in this arrangement 100, located from toe to heel, is first installed on the bottom of the shoe zone 120 for supplying flushing fluid from the column shoe 122 with a check valve, as described above. The gravel pack installation then continues with the inner column 110 moving toward the row of supply windows 132 along the arrangement 100. If the inner column 110 is not lowered or not properly adjusted in length, the operations become ineffective and the arrangement 100 may be damaged.

To aid in fitting along the length of the inner column 110, the regulating device 30 has an upper element 40 with a distal element 60 mounted for telescopic movement therein. Thus, the distal element 60 can linearly extend and retract relative to the upper element 40. Before actually starting the gravel pack packing operations, the operators fasten the device 30 in its extended position on the inner string 110 and then lower the inner string 110 and the extended adjusting device 30 to the bottom of the well . As a result, the inner column 110 abuts against the bottom of the gravel pack assembly 100, and the adjusting device 30 folds up until the ledges of the upper element 40 of the adjusting device 30 (or some other part of the inner column 110) touch. At this point, the inner column 110 obtains a suitably fitted length in the arrangement 100.

On the surface, operators mark an open pipe to indicate the length of the pipe used during the descent into the well, and the operators then lift the control device 30 and the inner string 110 from the well. When the regulating device 30 is lifted to the wellhead, the device 30 is at least temporarily locked in the stored position by the regulating device 30 of a fixed length. On the surface, the operators then fix the existing length of the control device 30 to prevent further regulation. Finally, operators lower the inner column 110 and the fixed length device 30 back into the well into the assembly 100, and a certain length adjustment should bring the bottom of the inner column 110 to the desired location in the first section of the gravel pack 102A appropriately.

In FIG. 2, the control device 30 is shown in more detail. As indicated above, the device 30 includes an upper (pipe) element 40 and a distant (pipe) element 60 mounted for telescopic movement therein. Although the device 30 is shown with two telescopic elements 40 and 60, more elements can be used.

At its end, from the side of the wellhead, the upper element 40 has a sleeve 42 that connects to components from the side of the wellhead (not shown), such as a portion from the side of the wellhead of the inner string (110). The distal element 60 extends from the bottom end of the upper element, and the two elements 40 and 60 can initially be held in extended position by cut pins 46 or the like. Ratchet latches 50 are located in the grooves 45 around the outside of the upper element 40, and the holding sleeve 44 mounted on the upper member 40 helps to keep the ratchet latches 50 in place. The seals 62 on the distal element 60 interact with the inner surface of the upper element 40 to prevent the passage of fluid between the elements 40 and 60.

The outer part of the distal element 60 has catchers or grooves 65 spaced apart from each other over most of the length of the element. The actual length of the elements 40 and 60 may be much longer than that shown in FIG. 2, so that the distal member 60 can be extended and retracted a considerable distance required for execution.

In FIG. 2, device 30 is shown extended to an initial position for descent into a well. When fully extended, the ratchet latches 50 are engaged with the uppermost fishing grooves 65 on the distal element 60. After the device 30 is installed on the bottom in the arrangement 100, the elements 40 and 60 are folded and the ratchet latches 50 move upward from the fishing grooves 65 on the distant element 60.

In FIG. 3 shows a detail of the ratchet latches 50 engaged with the fishing grooves 65 on the distal member 60. The ratchet latches 50 have several teeth 55 with beveled front edges. When moving the distal member 60 to the upper member 40, the beveled teeth 55 allow the fishing grooves 65 to pass along them.

The springs 52 mounted behind the ratchet latches 50 deflect the latches to the surface of the distal member 60 so that the teeth 55 can engage with the catch grooves 65. The springs 52 can be leaf springs or other types of deflectors. Preferably, the fishing grooves 65 are arranged in groups for engaging with several teeth 55 on the ratchet latches 50, but it should be clear that any number of ratchet mechanisms can be used, including the mechanisms commonly used in downhole tools for packers or sliding sleeves.

When the inner column 110 is installed in the layout 100 and comes into contact with the bottom, the elements 40 and 60 are folded all the way into the ledge of the upper element 40 (or another part of the inner column 110) in the layout 100. The push can be obtained in several ways. For example, the arrangement 100 may have a throttled channel that allows the distal element 60 to pass through it when moving inwardly in the layout 100, but the throttled channel engages with the upper element 40 when moving on it.

When the device 30 is folded and abuts against the ledge, the operators raise the inner column 110 to the surface. The operators remove the holding sleeve 44 and replace the ratchet latches 50 with locking latches (not shown) in the slots 45. These locking latches (not shown) may be similar to the ratchet latches 50, but they should not have ratchet bevels so that the locking latches should not work. as a ratchet mechanism in the fishing grooves 65 of the distant element. The operators then fasten the couplings 44 holding the locking latches, and the distal member 40 becomes permanently locked in position. Now, operators can re-lower the inner string 110 with the device 30, having a fixed length, into the well to continue installing gravel packs.

In FIG. 4A-4B show various sections of the control device 30 in a fully folded position. In FIG. 4A shows the ratchet latches 50 mounted in the upper element 40 for interacting with the external fishing grooves 65 in the distal element 60. Typically, one or more of these latches 50 can be used, but the latches 50 are preferably arranged at equal intervals around the circumference of the elements 40 and 60, although from they do not require arrangement at equal intervals in length.

In FIG. 4B shows a key 70 mounted in the upper member 40 and held by the sleeve 44. The key 70 moves in a longitudinal groove 67 along the length of the distal member 60. Thus, the two members 40 and 60 can slide relative to each other, but the key 70 prevents rotation of the members 40 and 60 relative to each other. Although one key 70 is shown, several keys 70 can be used.

C. Location device

As can be seen in the toe-to-heel arrangement 100 of the gravel pack of FIG. 1, the inner column 110 extends all the way to the bottom of the assembly 100 into the shoe area 120 for washing during installation of the gravel pack. Then, the inner column 110 is moved in the arrangement 100 to the row of windows 132A-132B and to other positions to complete the gravel pack filling in the various sections 102A-B. It is clear that knowing the location (distance) of various elements (windows, etc.) relative to the position of the inner column 110 in layout 100 can help operators move and install the inner column 110 appropriately and efficiently in layout 100 during work.

For this, the gravel pack arrangement 100 includes one or more placement devices 160 installed therein to determine the location of the inner column 110 at various positions in the arrangement 100. As shown in FIG. 1, one of the placement devices 160 can be positioned near the shoe zone 120 between the column shoe 122 with a non-return valve and the first windows 132A on the windowed casing 130A of the first section 102A. This location of device 160 allows operators to correlate the position of the inner column with at least one location in layout 100 and preferably the farthest location. It is understood that the length of the arrangement 100, the length of the inner column 110 reaching the end of the arrangement, braking forces, friction, possible deviations and other factors can complicate the use of conventional techniques for determining the location of the inner column 110 in the layout 100. Therefore, the use of the device 160 placement in this distant location of the layout 100 may be preferred to determine other positions for inner column 110 in arrangement 100.

Knowing this one location of the device 160 at the far end and knowing the details and dimensions of the layout 100 installed in the well, operators can calculate distances to other locations (i.e., windows 132A-B) on the layout 100 so that other installation positions can be determined the inner column 110. If desired, the placement device 160 may be located elsewhere in the arrangement 100.

In addition, multiple placement devices 160 can be used on layout 100 so that multiple locations can be defined along layout 100 during work. For example, each section 102A-B of the arrangement 100 may have a comparable placement device 160, so that the positions for the inner columns 110 can be determined at several locations during work. Finally, this can help operators locate different windows 132A-B individually in sections 102A-B.

Instead of using mechanical positioning techniques that may be unreliable, the placement device 160 uses hydraulic techniques to locate the inner column 110 in the arrangement 100. In FIG. 5A-5C show part of the arrangement 100 with an inner column 110 installed in the placement device 160. Here, the placement device 160 includes a tubular product 161 connected by a bottom-side clutch 162 to a shoe area 120 and connected by a wellhead side clutch 163 to a casing 130 with windows. Also, the device 160 can be installed elsewhere on the arrangement 100, in which case couplings 162, 163 should be connected to other components, for example, between sections 102A-B from the side of the wellhead and from the bottom of the well of assembly 100.

Instead of using the illustrated individual couplings 162, 163, the device 160 may be an integral component shown in FIG. 6, having a pipe casing 161 with coupling elements made on it. In either case, the device 160 of FIG. 5A-5C and 6 have an inner channel 165, hydraulically connected to the channels 135 and 125 of the casing 130 and the shoe area 120. The inner channel 165 forms a space with the possibility of isolation with the inner surfaces of the seal or sockets 164 located at both ends. These sockets 164 may be internal polished surfaces with a reduced diameter compared to other channels 125/135/165.

The inner column 110 has outer seals 114 located one on each side of the outlet windows 112. The seals 114 are configured to interact with the polished inner sockets 164 of the couplings 161, 163, as discussed below. (A reverse arrangement may also be used in which the couplings 161, 163 have internal seals to engage with polished sockets on the inner column 110.) As shown here, the inner column 110 also includes a valve (i.e., seat 116 and discarded ball 118 ), which can shut off the fluid flow in the column 110 and divert the flow through the outlet ports 112. Other valve devices may also be used, or the distal end of the inner column 110 may be permanently closed.

As shown in FIG. 5A, as the inner string 110 passes to the wellhead in the arrangement 100 from the shoe area 120 (or lower section 102) to the placement device 160, the circulation fluid slowly flows down the string 110 and is discharged through the outlet ports 112. (In general, the circulation fluid may be any suitable fluid used during proppant filling of the gravel pack / fracturing, preferably the circulation fluid is water, brine or carrier fluid or flushing fluid a different type of food. Less preferably, the circulation fluid may include a suspension of a gravel pack or fracturing pack.)

When pumping, the circulation fluid may pass to the bottom of the borehole in the annular space between the casing 110 and the assembly 100 (i.e., shoe area 120 and another borehole component). As a result, as shown in FIG. 5A, the upper seal 114 of the column 110 interacts with the lower socket 164 of the placement device 160.

With further movement to the wellhead of the string 110, as shown in FIG. 5B, the outlet ports 112 reach the inner channel 165 of the device 160, and the seals 114 interact with the slots 164. This creates an isolated space of the channel 165 in the device 160, which is isolated from the internal channels 135 and 125 from the mouth and bottom of the layout. Seals 114 on sockets 164 may be designed to attenuate flow and optionally create a fluid tight seal.

When column 110 reaches a given insulated space of passage 165, fluid slowly pumping downward inside column 110 to outlet ports 112 of the column creates a measurable increase in pressure that can be detected by pressure gauge 24 on the surface or elsewhere on assembly 100. Further movement of column 110 to the wellhead as a result moves the seals 114 from the device 160, as shown in FIG. 5C. Now, the circulation fluid may exit the outlet ports 112 and may extend up the annular space, so that there is no measurable pressure increase.

When pressure build-up occurs when the windows 112 of the column are insulated on the placement device 160, operators can identify this growth and can link the current position of the column to the location of the device 160 on the layout 100. Based on this known location and known dimensions and configuration of the layout 100 deployed in the well, others the position for installation inside the column 110 can be calculated for other desired locations on the layout 100. Moving to these other positions can be easily obtained by additionally moving to interior column 110 over calculated distances to other locations 100.

The placement device 160 operates regardless of the number of pipes and braking inside the column 110 during manipulations in the layout 100. Therefore, at any time during operation, this known location of the device 160 can be found by moving the column 110 and slowly pumping until an indication appears in which the calculations for other locations can be determined.

The movement of the inner column 110 in the arrangement 100 of FIG. 5A-5C extends to the wellhead. The placement device 160, however, can also work when moving the column 110 in the device 160 to the bottom. In addition, although the placement device 160 is used on a particular gravel pack arrangement 100 in which the gravel pack is filled from toe to heel, the elements of the placement apparatus 160 and the inner string 110 can be used on any suitable borehole arrangement in which the circulation fluid from the window the column 110 may help determine the location of the column in the positioning device 160 and further help determine other positions for the column 110 in the well assembly. For example, placement device 160 may be used with a conventional gravel pack layout and sub, or placement device 160 may be used with a cementing arrangement and service tool. In addition, the placement device 160 may be useful in determining the location of the inner string in a number of downhole components, for example, positioning in a fracturing arrangement using proppant with increased waste, a multi-zone fracturing system, an inflatable packer and the like. Accordingly, the above description for the gravel pack arrangement 100 is illustrative of the uses of the subject invention.

The description of preferred and other embodiments does not limit the scope or applicability of the concepts of the invention set forth by the applicants. For the present invention, it is understood that the features described above in any embodiment or aspect of the disclosed object may be used, individually or in combination with any other described features in any other embodiment or aspect of the disclosed object.

Disclosing in this document the concepts of the invention, applicants have all patent rights in accordance with the attached claims. Moreover, the attached claims include all modifications in full to the claims or their equivalents.

Claims (19)

1. The method of placing the inner string in the borehole arrangement in the wellbore, in which:
installing a regulating device on the inner column for launching into the well, the regulating device being folded to form a plurality of segments of a fixed length, while the inner column has at least one first window for hydraulic communication from the inner column;
carry out the deployment of the control device and the inner string in the borehole to the borehole assembly, the borehole assembly having at least one second window for hydraulic communication from the borehole assembly;
adjust the length of the inner string at the bottom of the well by folding the adjusting device to the length of one of the segments of a fixed length when touching the bottom of the inner string in the borehole assembly;
lift to the surface of the regulating device and the inner string in the borehole assembly;
keep one fixed length of the regulating device; and
positioning the adjusted inner column with a regulating device with a saved length in the borehole assembly with at least one first window of the inner column fitted to a known distance relative to at least one second window of the borehole assembly. 2. The method according to claim 1, in which the deployment of the control device and the inner string in the well in the borehole assembly includes the deployment of the control device in the extended position. 3. The method according to claim 1, wherein storing one fixed length and positioning includes locking the regulating device with one fixed length and re-deploying the inner column with the regulating device locked to hold the fixed length. 4. The method according to claim 1, in which the folding of the adjusting device to obtain a fixed length includes telescopic movement of the first element of the regulating device into the second element of the regulating device. 5. The method according to claim 4, in which maintaining a fixed length of the adjusting device includes engaging the first element with one fixed length in the second element. 6. The method according to claim 4, in which maintaining a fixed length of the regulating device includes placing a blocking element between the first and second telescopic elements of the regulating device. 7. The method according to claim 4, in which further prevent the rotation of the first and second elements relative to each other. 8. A device for adjusting the length of the inner string deployed in the borehole assembly, wherein the inner string deployable in the borehole assembly has at least one first window for hydraulic communication from the inner string, while the borehole assembly located in the wellbore has at least one second window for hydraulic communication from the downhole assembly, comprising:
a first element connected to one part of the inner column;
a second element telescopically connected to the first element and connected to another part of the inner column;
at least one ratchet device located on the first element; and
at least one catcher located on the second element and moving relative to at least one ratchet device,
wherein at least one ratchet device allows the second element to move in one direction relative to the first element,
wherein at least one ratchet device is adapted to engage at least one catcher and prevent the second element from moving in the opposite direction relative to the first element, and
wherein the first and second elements adjust the length of the inner string and adjust at least one first window of the inner string to a known distance for positioning relative to at least one second window of the well assembly. 9. The device of claim 8, in which at least one ratchet device comprises a latch having at least one tooth with a bevel in one direction. 10. The device according to claim 9, in which at least one catcher contains a groove made in the second element and engages with at least one latch tooth in the opposite direction. 11. The device of claim 10, in which the latch has a plurality of at least one tooth, and at least one catcher has a group of at least one groove that engages with the teeth of the latch. 12. The device of claim 8, in which at least one catcher contains many grooves made along a length of the second element with the possibility of coupling with at least one ratchet device on several segments of a fixed length of the second element relative to the first element. 13. The device according to claim 8, further comprising:
a groove made in one first or second element; and
a key located on another first or second element and moving in the groove, the key in the groove preventing rotation of the first and second elements relative to each other. 14. A device for deploying an inner string in a borehole assembly, wherein the inner string deployable in the borehole assembly has at least one first window for hydraulic communication from the inner string, wherein the borehole assembly located in the wellbore has at least at least one second window for hydraulic communication from the downhole assembly, comprising:
a first element connected to one part of the inner column;
a second element telescopically connected to the first element and connected to another part of the inner column; and
means for regulating the length of the inner string in the well, comprising:
means for folding the second element relative to the first element to the length of one of the plurality of segments of a fixed length,
means for ratcheting the first element in one direction relative to the second element,
means for preventing the movement of the second element in the opposite direction relative to the first element, and
means for fitting at least one first window to a known distance for positioning relative to at least one second window. 15. The device according to 14, further comprising means for preventing rotation of the first and second elements relative to each other. 16. The device according to 14, further comprising means for blocking the first and second elements to obtain a segment of one fixed length. 17. The method according to claim 1, in which additionally:
positioning at least one first window on the adjusted inner column relative to at least one second window; and
passing fluid from at least one first window into at least one second window. 18. The device of claim 8, in which the device and the adjusted inner column is placed in the well for passing fluid from at least one first window of the inner column into at least one second window of the well assembly. 19. The device of claim 14, further comprising means for positioning the adjusted inner string in the well assembly to allow fluid to flow from at least one first window of the inner string to at least one second window of the well assembly.

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