阅读说明：本技术 一种扶正套管贴堵管 (A kind of righting casing blocks pipe ) 是由 栾学玉 易鲁川 于 2019-09-06 设计创作，主要内容包括：一种扶正套管贴堵管,管体内有通孔,管体的上部加工扁体型外螺纹,管体的下部加工扁体型内螺纹,所述扁体型外螺纹与所述扁体型内螺纹扣型相同,结构尺寸相同,在管体的外部加工设置安置槽,所述的安置槽为3-8个,并均匀分布在管体的外壁上,所述的安置槽分为上槽段、中槽段、下槽段,所述的中槽段为燕尾型,所述的中槽段的外开口的宽度小于扶正条的宽度,扶正条的上部有开槽,扶正条安装在所述的安置槽里,扶正条的上部处于所述的上槽段里,扶正条有一段处于所述的中槽段里,扶正条有外凸段,扶正条的外凸段为弓形,扶正条的外凸段处于所述的中槽段之下,扶正条下部处于所述的安置槽里,所述的外凸段在受到外力作用时能变形收缩到所述的下槽段里。(A kind of righting casing blocks pipe, there is through-hole in tube body, the top of tube body processes flat figure external screw thread, the lower part of tube body processes flat figure internal screw thread, the flat figure external screw thread is identical as the flat figure internal screw thread button-type, structure size is identical, in the external process of tube body, resettlement groove is set, the resettlement groove is 3-8, and it is evenly distributed on the outer wall of tube body, the resettlement groove is divided into slot section, bracket groove section, lower slot section, the bracket groove section is dove-tail form, the width of the outward opening of the bracket groove section is less than the width of righting strip, fluting is arranged at the top of righting strip, righting strip is mounted in the resettlement groove, the top of righting strip is in the upper slot section, righting strip has one section to be in the bracket groove section, righting strip has outwardly projecting portion, the outwardly projecting portion of righting strip is arch, the outwardly projecting portion of righting strip is in the bracket groove section Under, righting strip lower part is in the resettlement groove, and the outwardly projecting portion is when by external force in energy deformation retract to the lower slot section.)

1. a kind of righting casing blocks pipe, including tube body (1), righting strip (2), have through-hole (1-3) in tube body (1), tube body (1) Top processes flat figure external screw thread (1-1), and the lower part of tube body (1) processes flat figure internal screw thread (1-4), the flat figure external screw thread (1-1) is identical as flat figure internal screw thread (1-4) button-type, and structure size is identical, it is characterized in that: adding in the outside of tube body (1) Resettlement groove (1-2) is arranged in work, and the resettlement groove (1-2) is 3-8, and is evenly distributed on the outer wall of tube body (1), described Resettlement groove (1-2) is divided into slot section (1-2-1), bracket groove section (1-2-3), lower slot section (1-2-2), the bracket groove section (1-2-3) For dove-tail form, the width of the outward opening of the bracket groove section (1-2-3) is less than the width of righting strip (2), the top of righting strip (2) Have fluting (2-1), the width of righting strip (2) is less than the width of the upper slot section (1-2-1), lower slot section (1-2-2), righting strip (2) width is less than the dovetail bottom width of the bracket groove section (1-2-3), and the width of upper slot section (1-2-1) is greater than described The dovetail bottom width of bracket groove section (1-2-3), righting strip (2) are mounted on that the resettlement groove (1-2) is inner, righting strip (2) it is upper The upper slot section (1-2-1) that portion is in described is inner, and righting strip (2) has one section of, righting strip inner in the bracket groove section (1-2-3) (2) it is blocked by the bracket groove section (1-2-3), makes righting strip (2) that the resettlement groove (1-2), righting strip cannot be detached from outward (2) there is outwardly projecting portion, the outwardly projecting portion of righting strip (2) is arch, and the outwardly projecting portion of the righting strip (2) is in the bracket groove section Under (1-2-3), the resettlement groove (1-2) that the lower part of righting strip (2) is in described is inner, and the outwardly projecting portion is by external force When can deformation retract it is inner to the lower slot section (1-2-2).

Technical field

The present invention is the equipment of oil exploitation well workover, is that a kind of righting casing blocks pipe.

Background technique

Casing Failure in oil development generates leakage, prevents it from normally recovering the oil or infusing using can be damaged after remote Water will block casing after this thing happens.Casing blocks, exactly next section blocks pipe at casing damage, so It blocks backward and binder (cement) is perfused in gap between pipe and casing, make to block pipe and be integrally fixed with casing, and can protect Sealing is held, the technology of this repairing casing is known as casing at the scene and is blocked.Since casing damage section is generally very long, the patch needed Plugging is also very long, needs to be blocked in the integral tripping in casing of effective screwed connection by more, in order to guarantee after casing blocks in it There is maximum internal diameter in portion, and outer diameter is necessarily less than casing inner diameter 8-12mm again.Therefore, thickness of pipe wall is blocked compared with book, it cannot will be existing Righting mechanism be mounted on and block on pipe, prevent to block under pipe when in casing from occuping among casing, cause to block pipe and set Annular space between pipe is uneven, and the binder (cement) for making perfusion unevenly, largely effects on casing and blocks quality, cause to cover Validity period after pipe blocks is short, or the requirement of reparation is not achieved.

Summary of the invention

The purpose of the present invention is designing a kind of righting casing to block pipe, overcomes the problems, such as it above-mentioned, can will block Pipe is supported on casing middle position, and the annular space for making to block between pipe and casing is uniform, keeps the Bonded Ring of perfusion uniform, guarantees Block quality.

The object of the present invention is achieved like this: including tube body, righting strip, there is through-hole, the top processing of tube body in tube body The lower part of flat figure external screw thread, tube body processes flat figure internal screw thread, the flat figure external screw thread and the flat figure internal screw thread button Type is identical, and structure size is identical, resettlement groove is arranged in the external process of tube body, the resettlement groove is 3-8, and is uniformly distributed On the outer wall of tube body, the resettlement groove is divided into slot section, bracket groove section, lower slot section, and the bracket groove section is dove-tail form, described The width of outward opening of bracket groove section be less than the width of righting strip, fluting arranged at the top of righting strip, and the width of righting strip is less than institute The width of the upper slot section, lower slot section stated, the width of righting strip are less than the dovetail bottom width of the bracket groove section, the width of upper slot section Degree is greater than the dovetail bottom width of the bracket groove section, and righting strip is mounted in the resettlement groove, and the top of righting strip is in In the upper slot section, righting strip has one section in the bracket groove section, and righting strip is blocked by the bracket groove section, makes righting Item cannot be detached from the resettlement groove outward, and righting strip has outwardly projecting portion, and the outwardly projecting portion of righting strip is arch, the righting strip Outwardly projecting portion is under the bracket groove section, and the lower part of righting strip is in the resettlement groove, the outwardly projecting portion by When external force in energy deformation retract to the lower slot section.

The beneficial effects of the present invention are: be mounted with righting strip in equally distributed 3-8 resettlement groove on tube body, the tube body is set to be in Lantern-shaped can will block pipe and be centered in casing, keep cementing concrete ring uniform, guarantee that casing blocks quality, guarantee that oil-water well is repaired It may normally produce for a long time again, there is significant economic benefit.

Detailed description of the invention

Attached drawing 1 is the structure chart of the embodiment of the present invention.

Attached drawing 2 is the section Local map after splitting from A-A in attached drawing 1.

Specific embodiment

The embodiment of the present invention is illustrated with reference to the accompanying drawing.

As seen from the figure, the embodiment of the present invention includes tube body 1, righting strip 2, there is through-hole 1-3, the top of tube body 1 in tube body 1 Process flat figure external screw thread 1-1, the lower part of tube body 1 processes flat figure internal screw thread 1-4, the flat figure external screw thread 1-1 with it is described Flat figure internal screw thread 1-4 button-type is identical, and structure size is identical, and resettlement groove 1-2, the peace is arranged in the external process of tube body 1 Setting slot 1-2 is 3-8, and is evenly distributed on the outer wall of tube body 1, and the resettlement groove 1-2 points are upper slot section 1-2-1, bracket groove Section 1-2-3, lower slot section 1-2-2, the bracket groove section 1-2-3 is dove-tail form, the width of the outward opening of the bracket groove section 1-2-3 Less than the width of righting strip 2, fluting 2-1 arranged at the top of righting strip 2, the width of righting strip 2 be less than the upper slot section 1-2-1, The width of lower slot section 1-2-2, the width of righting strip 2 are less than the dovetail bottom width of the bracket groove section 1-2-3, upper slot section 1-2- 1 width is greater than the dovetail bottom width of the bracket groove section 1-2-3, and righting strip 2 is mounted in the resettlement groove 1-2, helps The top of positive item 2 is in the upper slot section 1-2-1, and righting strip 2 has one section to be in the bracket groove section 1-2-3, righting Item 2 is blocked by the bracket groove section 1-2-3, and righting strip 2 is prevented to have evagination from being detached from the resettlement groove 1-2, righting strip 2 outward The outwardly projecting portion of section, righting strip 2 is arch, and the outwardly projecting portion of the righting strip 2 is under the bracket groove section 1-2-3, righting The lower part of item 2 is in the lower slot section 1-2-2 of the resettlement groove 1-2, and righting strip 2 is hampered and extends out backward when can prevent from going into the well , the outwardly projecting portion is when by external force in energy deformation retract to the lower slot section 1-2-2.

The screw thread of the upper and lower ends of tube body 1 is flat figure external screw thread, is because cannot be connected with box cupling between tube body 1, only It can connect from beginning to end, the wall thickness of tube body 1 is again inadequate, so regular screw threads cannot be designed.

Righting strip 2 is installed upwards from the lower part of resettlement groove 1-2, and after being installed in place, the top of righting strip 2 is mounted on tool In the fluting 2-1, the upper deformation of righting strip 2 is made to separate the dovetail that its outer dimension is greater than the bracket groove section 1-2-3 Bottom width prevents righting strip 2 from withdrawing in the bracket groove section 1-2-3.

Righting strip 2 is made of spring steel, is had elasticity, can be recovered in mounting groove when encountering casing deformation when going into the well, That is outer diameter of the invention not will increase, and guarantee smoothly to go into the well.After righting strip 2 is installed on tube body 1, righting strip 2 The internal diameter of casing of the outwardly projecting portion slightly larger than under.

The present invention can reverse use, i.e. external screw thread is under, and internal screw thread is upper.

Resettlement groove 1-2 is four in attached drawing 1, and the righting strip 2 of installation is also 4.

The resettlement groove 1-2 is vertically to open up, and influences the partial intensities of tube body 1, but do not influence to use, still ensures that Requirement, the resettlement groove 1-2 are not opened, and are not communicated with the through-hole 1-3, do not influence runner setting.