VISCOELASTIC WELL CLEANING SYSTEM AND METHOD WITH FLEXIBLE HELICAL CARRIER
Patent Information
- Application Number
- TR202615020
- Authority / Receiving Office
- TR · TR
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2026-09-02
- Publication Date
- 2026-09-21
- Estimated Expiration
- 2046-09-02
Smart Images
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Abstract
Description
1 TARIFF VISCOELASTIC WELL CLEANING SYSTEM WITH FLEXIBLE HELICAL CARRIER. METHOD TECHNICAL AREA 5 The invention relates to water wells, boreholes, geothermal wells and similar vertical, inclined or partially Loose sediments such as sand, silt, mud, and fine gravel that accumulate in horizontal well structures are removed from the well. It is a well cleaning system and method for removing debris. The invention specifically addresses: A cleaning material, initially in a fluid state, is delivered to the target area and then becomes flexible with sediment. 10 the formation of a viscoelastic composite mass around a helical carrier and the helical structure of this mass It involves removing material from a well by applying axial tensile force through a carrier. STATE OF THE ART In underground water wells, the usage period, well formation, and water or fluid movements are taken into account. and depending on operating conditions, sand, silt, or other debris may be found at the bottom or along the well wall. mud, fine gravel, drilling debris, corrosion products, and similar solid or semi-solid sediments These accumulations can reduce the usable cross-section of the well over time. narrowing of flow paths, restriction of flow paths, and disruption of pump and well equipment operation. this leads to a deterioration of conditions and especially a decrease in well yield in water wells. It is possible. In the current state of the technique, the purpose of removing these sediments from the well is... pumping, fluid circulation, air lifting, pressurized fluid jetting, mechanical scraping, and Various downhole cleaning equipment is used. Fluid-based cleaning. The basic principle in these methods is to mobilize solid particles inside the well to create a 25 the particles are kept in suspension within the fluid and the fluid This is due to the movement of matter to the well surface. However, this is especially true for large or dense particles. in sediments, at low flow rates, in large-diameter wells, and in inclined well sections It can be difficult to adequately suspend it and transport it to the surface. In this context, 30 were encountered in research conducted using the known state of the art. Patent document number US20140060845A1 describes sand and water found in wells and pipelines. a cleaning fluid and cleaner for removing similar solid residues The method is explained in the document. It describes how high molecular weight substances are used during well cleaning. Polymers can be used to increase the viscosity of fluids; also, sand and other 2 xanthan, guar, polyacrylamide and similar polymeric compounds are used in the removal of waste. high-viscosity gel masses formed from materials can be utilized It is stated that the basic cleaning principle here is the removal of solid particles by high viscosity. by being kept in suspension within the fluid and by the movement of the fluid within the well It is transported to the surface. 5 On the other hand, patent number US20060086507A1 is encountered in the known state of the art. the document describes a well used for removing debris from inside the well. The cleaning apparatus and method are explained. The document describes the cleaning apparatus. It features a helical fin structure and the fluid injected into the well is approximately This creates a helical flow motion. In this way, the waste inside the well is removed. particles are suspended in a fluid and the resulting helical flow The aim is to transport the material towards the well surface with the help of this technique. Therefore, in this technique... The helical structure allows for the mechanical capture and removal of sediment to be cleaned, rather than simply pulling it out of the well. It is used to determine the movement characteristics of the fluid carrying the sediment. In the known state of the art, a pipe or coiled tubing 15 is also lowered into the well. By supplying cleaning fluid through the systems, the sediment is dislodged by the movement of the fluid. and the removal of the fluid containing sediment from the space between the pipe and the well wall to the surface. There are applications involving transportation. In these systems, cleaning performance largely by creating a sufficient flow rate and until the sediment reaches the surface It depends on whether it is suspended in the fluid. For example, in document US20140060845A1, 20 The cleaning fluid is pumped into the well through a pipe, and the fluid containing the sediment is removed from the well. It is extracted from the annular region between the wall and the pipe in question. However, in current systems, the loose sediment inside the well is temporarily by being transformed into an integrated and mechanically movable mass, the mass in question is a 25 for removal from the well by applying axial tensile force through the supporting structure. Applications are not available, especially regarding the removal of cleaning material from the well surface. The liquid is initially delivered to the targeted sediment site, and then the sediment is deposited in the target area. a load-bearing structure that can incorporate and adapt the resulting mass to the well geometry the known technical solutions are insufficient in terms of mechanically holding it in place It is seen. 30 In addition, rigid mechanical cleaning elements adapt to changes in well diameter and well axis. It may have difficulty adapting to curvatures and partially horizontal well sections; gel or viscoelastic that adheres only to a rope or similar linear tensile element In materials, this involves the material slipping off the tensile element during tensile testing. It is possible for the sediment to disintegrate or leave some of it behind in the well. 35 3 On the other hand, a gel-forming cleaning material can be directly introduced into the well from the surface. If left unattended, the material's viscosity may increase before reaching the target depth, or Accumulation in unwanted well areas can also create problems in practice. Therefore, in the current state of the technique, only the fluid can remove the loose sediment inside the well. 5. Suspended inside, eliminating the need for transport to the surface, adaptable to the well geometry. capable of delivering cleaning material directly to the targeted well area. enabling, capable of holding the sediment within a manageable mass, and applied to that mass a well cleaning system that enables efficient transfer of axial tensile force There is a need. PURPOSE OF THE INVENTION 10 The main purpose of the invention is to remove sand, silt, mud, fine gravel and similar loose materials that accumulate in wells. The sediments only need to be suspended in the fluid and transported to the surface. Without being detected, the sediments in question are temporarily integrated and can be mechanically extracted. retaining it within a viscoelastic composite mass and removing this mass from the well The goal is to develop a well cleaning system and method that provides this. 15 The purpose of the invention is to accommodate curvatures, changes in direction, and limited diameter variations within the well. By using a support structure flexible enough to adapt, the cleaning process can be carried out vertically. This can be carried out not only in wells but also in inclined or partially horizontal well sections. to provide. Another objective of the invention is to reduce the viscoelastic composite cleaning mass formed during cleaning to 20 to reduce the slipping or uncontrolled disintegration of the tensile element a helical support structure that provides mechanical anchoring within the mass in question to form and thus apply axial tensile force from the surface to the sediment-containing composite The goal is to ensure efficient transfer of mass. Another purpose of the invention is to ensure that the flexible helical carrier acts as a tensile element during the tensile process. to limit axial displacement and the resulting tensile load on the carrier Multiple fastenings to the tensile element of the helical carrier to distribute the load throughout. The aim is to ensure connection at this point. This approach ensures that each helical segment in the draft has at least one connection point. It is described as being connected to the tensile element via two fixing points. Another purpose of the invention is to remove the cleaning material, which is initially in a fluid state, from the well 30 to reduce premature viscoelasticization in unwanted areas and to clean 4 A retractable mechanism to deliver the material directly to the target area where the sediment is located. The method is to use a cleaning material supply line. Another purpose of the invention is to remove the cleaning agent after it has been delivered to the target area. by ensuring the feed line is retrieved from the well before the viscoelastic transformation is complete 5. Preventing the feed line from being retained or jammed within the resulting composite cleaning mass. The aim is to prevent this. This sequence of operations is clearly defined in the current specification. Another purpose of the invention is to eliminate the need for active rotation of the helical carrier, sediment-containing material is removed by axial tensile action applied only to the flexible tensile element. by enabling the viscoelastic composite cleaning mass to be brought to the well surface, the system The goal is to simplify its mechanical structure and usage. 10 One aim of the invention is to ensure that in preferred applications, the process is carried out inside the well after the procedure. This allows for a reduction in the mechanical strength of the remaining cleaning material over time. by removing the remaining material from the well using pumping or circulation methods. to facilitate removal and thus leave no permanent cleaning material inside the well The aim is to reduce the risk of accumulation. 15 The structural and characteristic features and all the advantages of the invention are given in the figures below. Thanks to the detailed explanation written with references to the figures, it becomes clearer. This will be understood, and therefore the evaluation will also take these forms and detailed explanations into account. It must be done by taking it. BRIEF DESCRIPTION OF THE FIGURES The best way to utilize the advantages of the existing invention, together with its structure and additional elements. For it to be understood, it must be considered together with the figures explained below. Figure 1: Showing the general layout of the well cleaning system, which is the subject of the invention, inside the well. This is a schematic view. Figure 2: Flexible helical carrier, in the form of helical segments, to a flexible tensile element. fastening via anchor points and the gap between helical segments The detail that shows is the appearance. Figure 3: Initial flow of cleaning material, cleaning material supply line 30 by means of delivering it to the loose sediment and flexible helical carrier environment in the target area. It is a schematic view illustrating this. Figure 4: The flexible viscoelastic composite cleaning mass that incorporates loose sediment. Schematic showing the extraction of the material from the well by pulling it axially using a helical conveyor. It is appearance. Figure 5: Viscoelastic composite cleaning that may remain in the well after the cleaning process. This is a schematic view showing how the mass has transformed into residues with reduced strength. 5 REFERENCE NUMBERS 1 Well 2 Well wall or casing pipe 3 Flexible tensile elements 4 Flexible helical carriers Initially, fluid cleaning material 6 Loose sediment 7 Viscoelastic composite cleaning mass 8 Pull directions 9. Reduced strength residue Intersegmental spacing of the helical segments 11 Fixing points 12 Cleaning material supply line The drawings do not necessarily need to be scaled and are necessary for understanding the invention. Details that are not present may have been overlooked. Furthermore, at least to a large extent, 10 Elements that are identical or at least have substantially identical functions are numbered the same. It is shown. DETAILED DESCRIPTION OF THE INVENTION The invention is based on the removal of loose sediments such as sand, silt, mud, fine gravel and similar deposits (6), 15 temporarily with the help of a cleaning material (5) which is initially in a liquid state to be made into an integrated viscoelastic composite cleaning mass (7) and the said 6 The mass (7) is mechanically removed from the well (1) by means of a flexible helical carrier (4). It is a well cleaning system and method for extracting material. The system in question is basically; from the surface to the area to be cleaned inside the well (1). The flexible tensile element (3) extending around the said flexible tensile element (3) The flexible helical carrier (4) arranged, initially fluid cleaning material (5), 5 Retractable cleaning that delivers cleaning material (5) to the targeted well area connecting the material feed line (12) and the helical carrier (4) to the flexible tensile element (3). It includes fixing points (11). Flexible pull element (3) can extend from the well surface to the area to be cleaned and It is designed to withstand the tensile forces generated during cleaning. Flexible 10 The tensile element (3) is in the form of steel wire or braided metal wire in a preferred application. can be formed. However, high strength with sufficient tensile strength is required. Synthetic ropes or composite tensile elements can also be used. Flexible tensile strength. The flexible nature of element (3) means that the system can be used not only in linear or vertical wells, Well 15 has a curvature in its well axis or shows a certain degree of change in direction. It also enables its use in the sections. Around the flexible pull element (3), cleaning will mechanically adhere to the viscoelastic composite cleaning mass (7) during the process Flexible helical carrier (4) is arranged in this way. Flexible helical carrier (4) is tensile. spring wire, metal strip or braided flexible forming more than one turn around element (3) It can be created in the form of elements. 20 The outer diameter of the flexible helical carrier (4) is less than the inner diameter of the well wall or casing pipe (2). It is chosen to be small. Thus, the helical carrier (4) moves axially inside the well (1). Flexible helical carrier (4), preferably a single, continuous helical structure, instead of at least two axially separated structures. It is formed in the form of helical segments. There are 25 between successive helical segments. There is a gap (10) between the helical segments. The gap between helical segments (10) initially contains the helical of the fluid cleaning material (5). This facilitates the spread of the carrier (4) around the area and between the segments. Thus the cleaning material (5) is applied not only on the outer perimeter of the helical turns, but also on the helical turns. It can also be located in the region between the segments and after viscoelastic transformation 30 They can form interconnected composite regions. Each helical segment, The flexible tensile element (3) is connected via at least two fixing points (11). Fixing points (11), flexible tensile element during the pulling process of helical segments. (3) to prevent it from sliding axially in an uncontrolled manner is being created. 35 7 Fixing points (11); welding, clamping collar, mechanical clamp, press connection or It can be created using one of the equivalent mechanical fastening techniques. A helical The segment is attached to the flexible tensile element (3) via multiple fixing points (11) of the segment. Thanks to its connection, the tensile load generated during cleaning is concentrated in a single connection area. This prevents the concentration of load and distributes the load across multiple connection areas. 5 This structure also includes the helical carrier (4) on the flexible tensile element (3). It ensures that its position is maintained throughout the pulling process. In an optional application, the helix pitch of successive helical segments differs from each other. They can be constructed differently. Using different helix pitches allows the system to be used in different wells. This can enable adaptation to their geometries or different sediment properties, as well as viscoelastic 10 To increase the mechanical adhesion of the composite cleaning mass (7) on the helical carrier (4). It can also be used for the purpose of initially using fluid cleaning material (5) Feeding cleaning material to be delivered directly to the well area to be cleaned. It includes line (12). Cleaning material supply line (12) next to the flexible pull element (3) well 15 It extends from the surface to the area to be cleaned. The outlet end of the supply line (12) preferably within the helical intersegmental space (10), adjacent to the space in question It is located in the region or near the lower section of the flexible helical carrier (4). Thanks to the positioning of the outlet end of the supply line (12) in this way, initially Instead of releasing the fluid cleaning material (5) freely from the well surface, 20 to the target area where the sediment to be cleaned (6) and the flexible helical carrier (4) are located is provided. Initially, the fluid cleaning material (5) is allowed to pass through the supply line (12). It is prepared with the fluidity to provide the target. The cleaning material in question (5) It has a structure that can transition to a viscoelastic state within a certain period of time after reaching the region. 25 Thanks to the cleaning material (5) reaching the target area in fluid form, the material, into the voids where loose sediment (6) is located, between the turns of the helical carrier (4), helical to the intersegmental space (10) and other spaces around the helical carrier It can spread. After the cleaning material (5) is delivered to the target area, cleaning material feeding line (12), viscoelastic transformation of cleaning material 30 It is retrieved from inside the well (1) before completion. Retrieving the feed line (12) before the viscoelastic transformation is completed, feed the line (12) will remain within the viscoelastic composite cleaning mass (7) that will be formed, mass It prevents it from being caught or jammed inside the well. The feed line (12) 8 After removal, the fluid cleaning material (5) initially in the target area The necessary transformation time for it to reach the viscoelastic state is awaited. During viscoelastic transformation, the cleaning material (5) incorporates the loose sediment (6) into its structure. Thus, sand that is initially independent or loosely structured, silt, mud, fine gravel or similar sediments, viscoelastic 5 together with cleaning material. The resulting viscoelastic composite cleaning mass (7) is formed. (7) enters between the turns of the flexible helical carrier (4) and mechanically around the helical carrier (4). It is anchored as such. Here, the flexible helical conveyor (4) rotates the sediment as in classical screw systems. not as a carrier element that propels movement, but as a viscoelastic composite cleaning element. 10 a mechanical carrier and anchor structure in whose mass (7) the tensile force can be transferred It is used as. The helical carrier (4) forms more than one turn, viscoelastic It enables the composite cleaning mass (7) to enter the volumes between the helical turns and mechanical retention that makes it difficult for the mass to slip off the helical carrier during tension It forms regions. The intersegmental gap (10) also cleans 15 by facilitating the passage of the material around the helical segments, making them interconnected. It supports the formation of composite regions. During the cleaning process, it is necessary to actively rotate the flexible helical carrier (4). There is no mechanical movement. The necessary mechanical movement is to the well surface of the flexible tensile element (3). This is achieved by pulling it back axially. 20 The tensile force applied to the flexible tensile element (3) is transmitted through the fixing points (11). It is transferred to helical segments and thus to the flexible helical carrier (4). The pulling force transferred to the carrier (4) is mechanical in and around the helical turns. The viscoelastic composite cleaning mass (7) is transferred to the anchored mass. Thus, the viscoelastic composite cleaning mass (7) retains loose sediment (6) within itself 25 They are pulled together toward the well surface and taken out of the well (1). In this working principle, the sediment (6) is removed from the well by a process during which the sediment is removed from the well. It is not necessary to keep the sediment in suspension in the transport fluid. (6), viscoelastic composite cleaning mass (7) is held in place and by mechanical tensile action It is removed from the well. 30 During the installation of the system, first, the flexible helical carrier (4), the determined helical segments and is mounted onto the flexible tensile element (3) using the fixing points (11). The desired interhelical spacing (10) is left between the helical segments. 9 Then the flexible tensile element (3), the attached flexible helical carrier (4) and the cleaning The material supply line (12) is lowered into the well (1) together or in a suitable sequence. It is positioned in the target area to be cleaned. When the area to be cleaned is reached, initially the fluid cleaning material (5), feed passed through the line (12) around the loose sediment (6) and flexible helical carrier (4) 5 is provided. After sufficient cleaning material (5) is delivered to the target area feed line (12), before the viscoelastic transformation of the cleaning material is completed is withdrawn. Then the cleaning material (5) incorporates the loose sediment (6) into its structure. and viscoelastic composite cleaning in and around the turns of the helical carrier (4). The time required for the mass (7) to form is awaited. 10 After the transformation takes place, the flexible tensile element (3) becomes the flexible helical carrier (4) It is being pulled axially towards the well surface without actively rotating. (Tow) As a result of its movement, the viscoelastic composite cleaning mass (7) and the contents of it Loose sediment (6) is removed from the well together. The cleaning process depends on the amount of sediment or Depending on the length of the well that needs cleaning, cleaning can be done at different depths in the same well or at 15 different depths. This can be repeated multiple times in the same depth area. Initially, fluid cleaning material (5), water in a non-limiting application containing approximately 0.4% to 0.6% hydrated guar or guar derivative. It may contain a delayed-acting borate-based crosslinker. Cross-linking time depends on: well depth, well temperature, well fluid salinity, cleaning 20 The time required for the material to be delivered from the supply line (12) to the target area and The time it takes to remove the feed line (12) from the well can be determined by taking into account the time. In this way, sufficient cleaning material (5) can pass through the supply line (12). It has fluidity and undergoes viscoelastic transformation after reaching the target region. It can be provided. 25 In a non-restrictive example of a mechanical application, the inner diameter is approximately between 100 and 250 mm. Flexible tensile elements with a diameter of 4 to 10 mm in wells (3), approximately 30 to 120 mm outside flexible helical carrier (4) with a diameter of approximately 150 to 500 mm long helical segments and an axial clearance of approximately 40 to 200 mm between the said helical segments (10) Available. 30 The inner diameter of the cleaning material supply line (12) is the diameter of the cleaning material (5) Depending on the fluidity properties, it can be selected between approximately 6 and 20 mm. The specified dimensions are... This is for illustrative purposes only and may vary depending on the well diameter, well geometry, and the sediment to be removed. It can be modified depending on the characteristics and the amount of sediment to be removed. In a preferred application, initially the fluid cleaning material (5), cleaning After the completion of the time allotted for the process, the mechanical structure of the polymer... It may contain a delayed enzymatic breaker that reduces its resistance. 5 In this application, small amounts of water that may remain in the well after the cleaning process are removed. viscoelastic material becomes residue with reduced mechanical strength over time (9) It is transforming. The residue with reduced strength (9) is pumped out of the well or known circulation. It can be removed from the well by applying these methods. Delayed resistance loss is the basic operating principle of the well cleaning system that is the subject of this invention. 10 Cleaning material that is not mandatory and may remain in the well after the process It is an optional security feature that makes it easier to remove. In the system and method that is the subject of the invention, the flexible helical carrier (4) is actively used inside the well. No need for rotation; eliminating the need for a rotary drive mechanism. by reducing the mechanical structure of the system and the curvatures inside the well by keeping them simple. It contributes to achieving harmony. The fundamental technical effect of the invention is that the cleaning agent is delivered to the target area initially in a fluid state. by incorporating the loose sediment (6) into its material (5), around the flexible helical carrier (4) forming a mechanically anchored viscoelastic composite cleaning mass (7) and saying The subject is the axial tensile force applied to the flexible tensile element (3) of the mass well (1) 20 It is the removal of something from the system. The scope of protection in this application is defined in the claims section and is explicitly stated above. The examples given cannot be limited to those that are technically expert in the field; a person skilled in the field can make a difference in the invention. the innovation introduced can be achieved by using similar structures and / or these 25 It is clear that this structure can be applied to other areas with similar purposes using the same technique. Therefore, such structures foster innovation and, in particular, surpass the known state of technology. It is also obvious that it will lack this criterion.
Claims
11 REQUESTS 1. Removal of loose sediments (6) found in irrigation well (1) To ensure this, a flexible puller extends from the well surface to the area to be cleaned. element (3) and the cleaning material (5) which is initially in a fluid state 5 retractable cleaning material supply line that delivers the material to the area to be cleaned. (12) is a well cleaning system, the feature of which is; • formed with cleaning material (5) that incorporates loose sediment (6) transfer of axial tensile force to viscoelastic composite cleaning mass (7) In order to provide, the flexible tensile element (3) is positioned around and between which there are 10 consisting of at least two helical segments with inter-helical segment spacing (10) flexible helical carrier (4), • during the pulling process, the helical segments are on the flexible tensile element (3) To prevent axial slippage and distribute the tensile load to the helical segments, 15 connecting each helical segment to the flexible tensile element (3) at least at two points fixing points (11), • initially the fluid cleaning material (5) direct helical segments from the region between loose sediment (6) and flexible helical carrier (4) around In order to ensure that it is given, the output end is in the space between the helical segments (10) retractable cleaning material feeding line (12), 20 • initially the fluid cleaning material (5) helical segments and helical that the carrier takes in the loose sediment (6) by passing through (4) turns and to enable the formation of interconnected viscoelastic regions interhelical gaps created between successive helical segments (10), • mechanical cleaning by spreading the viscoelastic composite cleaning mass between the turns (7) 25 anchoring and axial tension applied to the flexible tensile element (3) the force applied to the mass without an active rotational motion (7) by transferring loose sediment (6) together with viscoelastic composite cleaning mass (7) Flexible helical carrier (4) that enables it to be removed from the well (1), It is characterized by its inclusion. 30 2. A well cleaning system conforming to Claim 1, characterized by its ability to withstand curvatures in the well axis and to accommodate limited diameter variations and maintain flexibility during the drawing process flexible helical carriers made of spring wire, metal strip or braided flexible element (4) It is characterized by its inclusion. 12 3. A well cleaning system conforming to claim 1 or 2, characterized by its viscoelastic composite material. To increase the mechanical anchoring of the cleaning mass (7) on the helical carrier (4) and different well in successive helical segments to adapt their geometries to sediment characteristics It is characterized by containing flexible helical carriers (4) with different helical pitches. is being done. 5 4. A well cleaning system suitable for any of the previous requirements, characterized by its flexibility. the helical carrier (4) is moved axially inside the well (1) and the well wall or to ensure that it is pulled back without being stuck in the casing pipe (2), the outer diameter of the well Flexible helical carrier (4) whose wall or inner diameter of the casing pipe (2) is smaller than the inner diameter of the casing. It is characterized by its inclusion. 10 5. A well cleaning system suitable for any of the previous requirements, and its features include: during the delivery of the fluid cleaning material (5) to the target area it maintains its fluidity and becomes viscoelastic with a delay after reaching the target region. To induce this state, guar or a guar derivative with a delayed effect, along with borate. It contains initially fluid cleaning material (5) with essential crosslinking agent 15 It is characterized by...
6. A well cleaning system conforming to Claim 5, characterized by its initial fluid cleaning. around the sediment (6) and flexible helical carrier (4) of the material (5) in the target area To create a fluid working range that allows for its spread, approximately in water Initial fluid cleaning containing 0.4% to 0.6% guar or guar derivative 20 It is characterized by containing material (5).
7. A well cleaning system conforming to claim 5 or 6, the characteristic of which is; for the cleaning process polymer structure of viscoelastic composite cleaning mass (7) after the predicted time to weaken and remove any cleaning material that may remain in the well (1) To facilitate this, initially fluid cleaning containing a delayed enzymatic breaker 25 It is characterized by containing material (5).
8. A well cleaning system suitable for any of the previous requirements, and its features include: viscoelastic composite cleaning mass (7) passes around the helical segments and interlocks successive helical segments to enable the formation of bonded composite regions The interstitial gap created between helical segments with an axial distance of 40 to 200 mm (10) 30 It is characterized by its inclusion.
9. A well cleaning system suitable for any of the previous requirements, and its features include: The viscoelastic composite cleaning mass (7) is mechanically mounted on the helical carrier (4). 13 To ensure that the mass is held and the pulling force is transferred to the mass in question, 150 to It is characterized by containing helical segments that are 500 mm long.
10. A well cleaning system suitable for any of the previous requirements, and its features include: initially the fluid cleaning material (5) is delivered to the target area in fluid form To ensure this, depending on the fluidity of the cleaning material, 5 with an inner diameter of 6 to 20 mm. It is characterized by having a cleaning material supply line (12).
11. A well for the removal of loose sediments (6) found in well (1). It is a cleaning method, and its characteristic is; • To ensure the transmission of pulling force during the cleaning process, 10 of at least two helical segments with intersegmental gap (10) between them The resulting flexible helical carrier (4) must have at least two fixation points for each helical segment. The well to be cleaned is connected to the flexible tensile element (3) via point (11) placement in the region • initially the fluid cleaning material (5) directly loosens the sediment (6) and To ensure that the flexible helical carrier (4) is delivered to the target area, 15 The retractable exit end is located in the gap between the helical segments (10). the cleaning material supply line (12) to the well area to be cleaned placement, • initially the fluid cleaning material (5) where loose sediment (6) is located To ensure that the area and the turns of the flexible helical carrier (4) are spread out, 20 from the cleaning material supply line (5) (12) delivery to the target region, • viscoelastic composite cleaning material will be formed in the supply line (12) of the cleaning material. In order to prevent the mass (7) from remaining inside the said supply line (12) well 25 before the viscoelastic transformation of the cleaning material is complete reclaiming the region • holding loose sediment (6) in a mechanically pullable mass In order to ensure that the cleaning material (5) incorporates loose sediment (6) and By spreading between the turns of the flexible helical carrier (4), mechanically connecting to those turns 30 waiting, • mechanical in the viscoelastic composite cleaning mass (7) of loose sediment (6) To ensure that it is removed from the well (1), the flexible helical conveyor (4) is active Axial retraction of the flexible tensile element (3) without being rotated 14 by way of loose sediment (6) in the viscoelastic composite cleaning mass (7) together being taken out of the well (1), It is characterized by including stages.
12. A well cleaning method in accordance with Claim 11, characterized by its initial fluidity. The fluidity of the cleaning material (5) during delivery to the target area is 5 protection and viscoelastic composite cleaning mass after reaching the target area (7) to enable its transformation, guar or guar derivatives with delayed-acting borate-based solutions by using the initial fluid cleaning material (5) containing a crosslinker It is characterized by...
13. A well cleaning method conforming to claim 11 or 12, characterized by the cleaning process being 10. mechanical strength of viscoelastic material remaining in well (1) after to ensure its removal by reducing it, initially containing a delayed enzymatic breaker Use of fluid cleaning material (5) and reduced strength residue (9) It is characterized by removal from the well by pumping or circulation.