CN217560976U

CN217560976U - Sampler is scraped to wall of a well solid

Info

Publication number: CN217560976U
Application number: CN202121359043.0U
Authority: CN
Inventors: 张建军; 党军胜; 游楚豫; 鲁俊; 陈永浩; 杨青云
Original assignee: China Petroleum and Chemical Corp; Petroleum Engineering Technology Research Institute of Sinopec Zhongyuan Oilfield Co
Current assignee: China Petroleum and Chemical Corp; Petroleum Engineering Technology Research Institute of Sinopec Zhongyuan Oilfield Co
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2022-10-11
Anticipated expiration: 2031-06-18

Abstract

The utility model relates to an oil gas engineering gas-water well testing tool field has especially related to a sampler is scraped to wall of a well solid. The sampler is scraped to wall of a well solid includes scrapes the body, is equipped with on the outer wall of the body of scraping and scrapes the tooth, still is equipped with particulate matter deposit chamber on the body of scraping, the top in particulate matter deposit chamber distributes and has the scraping tooth, the opening in particulate matter deposit chamber is up. The utility model discloses particulate matter deposit chamber has been set up on the body of scraping of wall of a well solid scraping sampler, and the tooth of scraping has been arranged to the top in particulate matter deposit chamber, the opening in particulate matter deposit chamber up, consequently, the in-process that strikes off is being carried out the solid plug on the wall of a well, the solid particle of production will drop to and deposit in the particulate matter deposit intracavity, realize that the solid particle collects the sample, the research and development of stifled medicament is separated to formulation and chemistry that for follow-up deposit jam precaution measure provides true sample, support the formulation of follow-up deposit jam precaution measure and the research and development of chemical unblock medicament.

Description

Sampler is scraped to wall of a well solid

Technical Field

The utility model relates to an oil gas engineering gas-water well testing tool field has especially related to a sampler is scraped to wall of a well solid.

Background

In the development process of oil wells and natural gas wells, the solid-phase particles are separated out and deposited on the inner wall of a shaft in the exploitation process of part of oil-gas wells under the restriction of reservoir fluid properties, drilling and exploiting working conditions and other factors, and the shaft production channel is blocked due to serious deposition, so that the production stop of the oil-gas wells is caused.

The existing measures for removing the solid particle deposition and blockage on the well wall of the shaft mainly comprise pipe column replacement, chemical agent blockage removal, shaft inner wall scraping and the like. The method for replacing the pipe column can remove the blockage phenomenon of the shaft, but has the defects of complex construction operation, high cost, long time consumption and the like. The chemical agent blockage removal is different in components of deposited blockage of different mineshafts, and the conventional chemical blockage removal agent is poor in pertinence and blockage removal effect, so that a blockage dissolving test needs to be carried out pertinently, and a special blockage removal chemical agent needs to be developed. The method for removing the particle deposition blockage of the shaft wall of the shaft by carrying the scraper in the cable operation has the advantages of low cost, no production occupation and the like, can effectively prevent the production stop caused by serious blockage of the shaft due to deposition by regularly scraping the inner wall of the shaft, and is an ideal mode for removing the solid sediment of the shaft wall of the shaft at present.

The existing shaft inner wall scraper for rope cable operation generally has scraping teeth and scraping grooves uniformly distributed on the outer wall of the scraper, the scraping teeth are distributed in a dotted manner, the scraping area is small, and the shaft inner wall scraping efficiency is low. As described in patent specifications CN204627488U, CN205876272U, and CN210948596U, the scraping efficiency of the scraper can be improved to some extent by providing the scraping teeth in a spiral shape. In practical engineering, however, after the solid well wall plugs are scraped, the constructor also needs to be able to grasp the components of the solid well wall plugs so as to provide references for the formulation of subsequent measures for preventing the deposition and plugging and the research and development of chemical plugging removal agents. However, the existing scraper for the inner wall of the shaft cannot provide support for the formulation of subsequent deposit blockage prevention measures and the research and development of chemical blockage removal medicaments.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sampler is scraped to wall of a well solid to solve current shaft inner wall scraper and can't provide the problem of support for the formulation of follow-up deposit jam prevention measure and the research and development of chemical unblock medicament.

In order to realize the purpose, the utility model discloses a sampler is scraped to wall of a well solid adopts following technical scheme: the sampler is scraped to wall of a well solid, including scraping the body, be equipped with on the outer wall of scraping the body and scrape the tooth, still be equipped with particulate matter deposit chamber on the scraping the body, the top in particulate matter deposit chamber distributes and has scrape the tooth, the opening in particulate matter deposit chamber is up.

Has the beneficial effects that: the utility model discloses particulate matter deposit chamber has been set up on the scraping body of wall of a well solid scraping sampler, and the scraping tooth has been arranged to the top in particulate matter deposit chamber, the opening in particulate matter deposit chamber up, consequently, the in-process that strikes off is carried out to the solid plug on the wall of a well, the solid particle of production will drop to and deposit in the particulate matter deposit chamber, realize that the solid particle collects the sample, the formulation of blocking up the precaution and the research and development of chemical unblocking medicament provide true sample for follow-up deposit, support the formulation of follow-up deposit blocking up precaution and the research and development of chemical unblocking medicament.

Further, the particle deposition chamber is provided with a liquid discharge hole, and the liquid discharge hole constitutes an object particle filtering hole. The liquid drainage hole can be with the liquid discharge particulate matter deposit chamber in the pit shaft to avoid the particulate matter in the particulate matter deposit chamber to be kick-washed outside.

Furthermore, more than two liquid discharge holes are arranged around the periphery of the particle deposition cavity. The efficiency of flowing back can be accelerated to a plurality of outage.

Further, the liquid discharge hole is formed in the bottom of the particulate matter deposition cavity. Establish the outage in particulate matter deposit chamber bottom, can realize the complete discharge to liquid.

Furthermore, the scraping body comprises a scraping rod and a guide cone positioned at the lower end of the scraping rod, a cavity is arranged in the guide cone, and the particulate matter deposition cavity is formed by the cavity of the guide cone.

Furthermore, the scraping rod and the guide cone are detachably connected. When scraping pole and guide cone releasable connection, can only change guide cone or scraping pole according to actual need, have the advantage of lowering costs.

Furthermore, one of the scraping rod and the guide cone is provided with a stud, the other is provided with a screw hole, and the scraping rod and the guide cone are matched and detachably connected through the stud and the screw hole. The stud and the screw hole are matched, so that the structure is simple, and the assembly and disassembly are convenient.

Furthermore, a cable joint used for being connected with a cable is arranged at the upper end of the scraping body, and the cable joint is a universal joint. Adopt universal joint structure's hawser joint, can adapt to the (diameter, curved well) pit shaft of different grade type, increase the utility model discloses an adaptability.

Further, the scraping teeth are helical teeth arranged around the scraping body. The helical teeth will have a better scraping effect and the helical grooves formed by them will better guide the solid particles produced by scraping into the particle deposition chamber.

Still further, the opening of the particulate matter deposition chamber is larger than the outer diameter of the portion of the scraping body located above the opening of the particulate matter deposition chamber. Through the opening size who sets up particulate matter deposit chamber, will better realization to the receipt of particulate matter.

Drawings

FIG. 1 is a schematic structural diagram of a borehole wall solid scraping sampler of the present invention;

fig. 2 is a partial enlarged view of the boss 1 at a.

In the figure: 101. scraping the body; 11. a scraping bar; 111. scraping teeth; 112. a rod joint; 113. a stud; 12. a guide cone; 121. an opening; 122. a particulate matter deposition chamber; 123. a drain hole; 102. a cable joint; 21. a universal upper joint; 22. a universal lower joint; 23. a ball head connecting rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention, i.e., the described embodiments are merely illustrative of some, but not all, of the embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that the relational terms such as "first" and "second," and the like, which may be present in the embodiments of the present invention, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the possible appearances of the phrase "comprising one of the elements 8230 \8230;" defining elements does not exclude the presence of additional like elements in the process, method, article, or apparatus that comprises such elements.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.

In the description of the present invention, unless otherwise explicitly specified or limited, the term "provided" should be understood broadly, for example, the object provided may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be detachable or non-detachable. The specific meaning of the above terms in the present invention can be understood by those skilled in the art through specific situations.

The present invention will be described in further detail with reference to examples.

The utility model discloses a sampler is scraped to wall of a well solid embodiment as follows:

as shown in fig. 1-2, the borehole wall solids drag sampler includes a drag body 101 and a cable connector 102.

The scraping body 101 includes a scraping bar 11 and a guide cone 12.

The scraping bar 11 is provided with scraping teeth 111, and in the present embodiment, the scraping teeth 111 are helical teeth, specifically T-shaped helical teeth. Of course, it should be understood by those skilled in the art that in other embodiments, the scraping teeth 111 can be any other type of scraping teeth, such as arc-shaped teeth, teeth telescopically mounted on a scraping bar, etc., as long as they can perform the scraping function. The rod joint 112 is disposed at the upper end of the scraping rod 11, in this embodiment, the rod joint 112 is specifically an external thread joint, however, in other embodiments, the rod joint 112 may also be an internal thread joint, or a joint clamped with an adaptive joint, etc. The lower end of the scraping rod 11 is provided with a stud 113, and the stud 113 is used for connecting with the guide cone 12.

The lower end of the guide cone 12 is a cone, and can be used for crushing well sections with serious scaling and blockage on the inner wall of the shaft and opening a passage for subsequent scraping. It can be seen that the lower portion of the guide cone 12 only needs to have a tip, and the taper may be regular or irregular, and may be a cone in the present embodiment or a pyramid. The guide cone 12 is a hollow structure having an upward opening 121, and an inner cavity thereof forms a particle deposition chamber 122, and in this embodiment, the opening of the particle deposition chamber 122 is larger than the maximum outer diameter of the scraping rod 11 and is spaced apart from the scraping teeth 111 nearest above, so that the collection of particles generated by scraping can be realized. Of course, in other embodiments, it is also possible to only space the opening 121 from the closest upper scraping tooth 111, so that the solid particles can also be collected to some extent. During use, the helical scraping teeth 111 will also act to guide the solid particles to the opening of the particle deposit chamber 122. The wall of the particle deposition chamber 122 is further provided with a drain hole 123, and in this embodiment, the drain hole 123 is located on the bottom wall of the particle deposition chamber 122, specifically, an inclined hole. The drain holes 123 are sized to allow liquid drainage but prevent solid particles from draining, thereby acting as particulate filter holes. The drain holes 123 are plural and arranged around the center line of the guide cone 12. Of course, in other embodiments, the drain hole 123 may be omitted, in which case, when the water is accumulated to a certain amount, it may overflow directly from the opening of the particle deposition chamber 122, and in which case, although a part of the solid particles may be washed away, a part of the solid particles may still be collected.

In order to cooperate with the studs 113 on the scraping bar 11 to realize a detachable connection with the scraping bar 11, a screw hole is provided in the guide cone 12 at the center of the bottom of the particle deposition chamber.

The cable joint 102 is connected to the upper end of the scraping rod 11, is a universal joint, and specifically includes a universal upper joint 21, a universal lower joint 22 and a ball connecting rod 23, the lower end of the universal lower joint 22 is in threaded connection with the rod joint 112, the upper end is in threaded connection with the ball connecting rod 23, and the upper end (ball) of the ball connecting rod 23 is assembled in the sleeve portion of the universal upper joint 21, so that a universal connection structure can be formed through the movement of the ball relative to the universal upper joint 21 during use. The universal connection structure enables the universal upper joint 21 (connecting cable) and the scraping rod 11 to rotate freely relatively, so that the scraping effect is improved, and meanwhile, the torque of the cable can be released in the rope lifting and scraping process, and the engineering accident caused by twisting of the cable can be prevented. Of course, in other embodiments, the universal connection structure may be formed by a cross shaft coupling or the like, which is not described herein.

In the process of taking up and taking down the shaft wall solid scraping sampler in a shaft by adopting the cable operation, the scraping body 101 scrapes and removes solid plugs deposited on the shaft wall, and simultaneously, the shaft wall sediment sample is collected through the particle deposition cavity 122, so that a real sample is provided for formulation of follow-up deposition blockage preventive measures and research and development of chemical blockage removal medicaments. The low sediment can solve the problem of solid deposition and blockage of the shaft, prolong the operation period of the pipe inspection, shorten the production time and ensure the long-term continuous production of oil-gas-water wells.

In other embodiments, the particle deposition chamber can be directly integrated on the scraping rod, and the position of the particle deposition chamber can also be the middle part of the scraping rod, only a certain amount of scraping teeth are required to be ensured above the particle deposition chamber, and the structure can still meet the requirement of collecting the scraped solid particles.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, the scope of the present invention is defined by the appended claims, and all the structural changes equivalent to the content of the description and the attached drawings should be included in the same way.

Claims

1. Sampler is scraped to wall of a well solid, including scraping body (101), be equipped with on the outer wall of scraping body (101) and scrape tooth (111), its characterized in that, still be equipped with particulate matter deposit chamber (122) on scraping body (101), the top in particulate matter deposit chamber (122) distributes and has scrape tooth (111), the opening in particulate matter deposit chamber (122) is up.

2. The sidewall solids scraping sampler of claim 1, wherein the particulate matter deposition chamber (122) is provided with drain holes (123), and the drain holes (123) constitute object particulate matter filtering holes.

3. The sidewall solids scraping sampler of claim 2, wherein there are more than two drain holes (123) circumferentially disposed around the particulate deposit chamber (122).

4. The sidewall solids scraping sampler of claim 2 or 3, wherein the drain hole (123) is provided at the bottom of the particulate matter deposition chamber (122).

5. The borehole wall solids scraping sampler according to any one of claims 1-3, characterized in that the scraping body (101) comprises a scraping rod (11) and a guide cone (12) at the lower end of the scraping rod (11), wherein a cavity is arranged in the guide cone (12), and the particle deposition cavity (122) is formed by the cavity of the guide cone.

6. The sidewall solids scraping sampler of claim 5, wherein the scraping bar (11) is detachably connected to the guide cone (12).

7. The sidewall solid scraping sampler of claim 6, wherein one of the scraping rod (11) and the guide cone (12) is provided with a stud (113), and the other is provided with a screw hole, and the scraping rod (11) and the guide cone (12) are detachably connected through the matching of the stud (113) and the screw hole.

8. The sidewall solids scraping sampler of claim 1, wherein the upper end of the scraping body (101) is provided with a cable joint (102) for connecting with a cable, and the cable joint (102) is a universal joint.

9. The sidewall solids scraping sampler of claim 1, wherein the scraping teeth (111) are helical teeth, arranged around the scraping body (101).

10. The sidewall solids scraping sampler of claim 1, wherein the opening of the particulate matter deposition chamber (122) is larger than the outer diameter of the portion of the scraping body (101) above the particulate matter deposition chamber opening.