CN217582073U - Oil-water well workover is with integration instrument - Google Patents
Oil-water well workover is with integration instrument Download PDFInfo
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- CN217582073U CN217582073U CN202221147355.XU CN202221147355U CN217582073U CN 217582073 U CN217582073 U CN 217582073U CN 202221147355 U CN202221147355 U CN 202221147355U CN 217582073 U CN217582073 U CN 217582073U
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Abstract
The utility model relates to an oil-water well workover is with integration instrument, workover tool main part including tubular structure, workover tool main part one end is equipped with the top connection that is used for connecting the milling drilling tool bottom, be equipped with the shop weld groove that supplies shop welding material to set up on the outer peripheral face of workover tool main part, be equipped with the milling material layer in the shop weld groove, the external diameter on milling material layer is greater than the external diameter of workover tool main part, workover tool main part inner chamber forms circulating water passageway, be equipped with the elongated slot that is on a parallel with workover tool main part central line setting on the workover tool main part outer wall, the elongated slot radially pierces through the milling material layer in workover tool main part, total elongated slot is two, two elongated slots are the symmetry setting about workover tool main part central line. The utility model has the advantages that: the method has the advantages of simple operation and construction, strong practical effect and repeatable use. The synchronization of sleeve repairing and descaling processes is realized, the separate use of underground jarring tools is reduced, and the requirements of the integrated processes of sleeve repairing, milling, descaling and jarring of the oil-water well are met.
Description
Technical Field
The utility model belongs to oil borehole operation instrument field, concretely relates to oil-water well workover is with integration instrument.
Background
At present, with the increasing of the development time of an oil field and the continuous change of the development work, the measures of increasing the production and the injection of an oil-water well are frequently carried out, so that a formation fluid field and a pressure field are greatly changed, the technical condition of a casing is increasingly poor, and the casing damage conditions such as breakage, deformation, perforation, fault breakage and the like are continuously caused. According to data statistical analysis, 59% of casing deformation wells appear, wherein the bending deformation accounts for 34% and the necking deformation accounts for 25%; the casing lost circulation well accounts for 41 percent, wherein the casing breakage accounts for 16 percent, the casing dislocation accounts for 13 percent, and the perforation loss accounts for 11 percent; the channeling outside the sleeve accounts for 1 percent, so that part of oil-water well fittings are stuck with the drill (665-2 water distributor clip, ZPY341 packer clip, Y221 and Y111 packer clip) and the conventional maintenance operation can not be implemented; the method is characterized in that the number of underground accessories of the water injection well is large, the inner wall of the sleeve is seriously scaled and corroded, and the injection pressure difference is increased, so that the deformation and scaling drilling sticking phenomenon exists in nearly 45 percent of the water injection well, and the underground overhaul operation is caused.
When underground overhaul operation is carried out to the position of an underground accessory, deformation and scaling of an underground sleeve and simultaneous drill clamping exist frequently to clamp the underground fish (the accessory), the conventional treatment mode utilizes a conventional milling cone tool to trim and scale, the outer diameter of the lower end part of the tool is smaller than 88.9mm of a TBG tubing coupling phi due to the fact that the length of the milling cone is large, only trimming and partial well section scale removal operation can be carried out, the purposes of trimming and scaling cannot be achieved when the distance between the length of the milling cone and the diameter of the lower end part of the tool is 20-40 cm from the top of a fish, the shocking operation cannot be achieved, only single tool treatment can be carried out on different working procedures, and certain operation cost is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an oil-water well workover integrated instrument for realizing oil-water well workover, milling, scale removal and jarring integrated operation.
In order to solve the problem, the utility model relates to an oil-water well is integration instrument for workover adopts following technical scheme: the integrated tool for the workover treatment of the oil-water well comprises a workover tool main body of a tubular structure, wherein one end of the workover tool main body is provided with an upper joint used for connecting the bottom end of a milling drilling tool, the outer peripheral surface of the workover tool main body is provided with a welding laying groove for laying welding materials, a milling material layer is arranged in the welding laying groove, the outer diameter of the milling material layer is larger than the outer diameter of the workover tool main body, a circulating water channel is formed in the inner cavity of the workover tool main body, the outer wall of the workover tool main body is provided with long grooves parallel to the central line of the workover tool main body, the long grooves penetrate through the milling material layer in the radial direction of the workover tool main body, the number of the long grooves is two, and the two long grooves are symmetrically arranged about the central line of the workover tool main body.
Has the advantages that: the tool is connected with a drilling tool and is put into a well, the deformation (damage) and scaling condition of a casing and the possible blockage depth are analyzed according to the previous fishing condition in the well, the change of the suspended weight of a weight indicator is observed, if more oil is condensed in the well and the blockage occurs midway, the well can be washed by hot water (above 80 ℃), clear water is required to be thoroughly seen, the well is slowly rotated and put down, and when the distance between the well and the position of milling and descaling is 1.5-2 m, the well is washed and rotated (rotated forwards or reversely) to be drilled and ground, so that the synchronization of sleeve repairing and descaling is realized.
The drilling pressure is properly checked according to the conditions of reverse turning and return of the drilling tool, the sleeve repairing drilling pressure is generally controlled to be 1.0-2.5 t, the descaling drilling pressure is controlled to be 1.5-3.0 t, the discharge capacity is controlled to be 0.45-0.75M3/min, the drilling and grinding are carried out once every 5-10 min, the drilling and grinding are carried out until the fish top (fish head) of a drill clamp under the well is ground and milled, after the shaft is repeatedly and reversely drilled and smoothly, after a cycle period of large-discharge well washing, the drilling tool is lifted for 3-5 m, quickly lowered, the position close to the fish top is braked, the elastic extension of the drilling tool is utilized to carry out downward impact on the fish, and the integral operation of grinding and milling (descaling) of the sleeve repairing of the oil-water well is finished. If the fallen fish in the well moves downwards for a certain stroke, the traced fallen fish drilling tool encounters resistance, the operations of sleeve repairing, milling, descaling and shocking can be continuously carried out until the traced fallen fish drilling tool is free from resistance and the fallen fish in the well falls on the sand surface of the artificial well bottom, the drilling can be carried out, and the fishing operation is continuously carried out by adopting a proper method.
If the circulation system has a fault, the drilling and grinding are stopped, the movable drilling tool is lifted at a position of more than 50-80 m, if the rotation or lifting system has a fault, the well is continuously washed by clean water for 2-2.5 circulation periods, and the drilling and maintenance can be stopped. The utility model has the advantages that: the method has the advantages of simple operation and construction, strong practical effect and repeatable use. The synchronization of sleeve repairing and descaling processes is realized, the separate use of underground jarring tools is reduced, and the requirements of the integrated processes of sleeve repairing, milling, descaling and jarring of the oil-water well are met.
Furthermore, the part of the milling material layer, which is far away from the upper joint, is a conical surface with a large upper part and a small lower part, and the part of the milling material layer, which is close to the upper joint, is a cylindrical surface.
Furthermore, a gap is reserved between the part, close to the upper joint, of the milling and grinding material layer and the weld paving groove, and the gap distance is gradually increased from bottom to top.
Further, the milling material layer is YD alloy or crushed hard alloy blocks.
Furthermore, the paving and welding groove is formed in the outer wall between the two end faces of the workover tool main body, a lower striking head is formed in the portion, located below the paving and welding groove, of the workover tool main body, and the circulating water channel penetrates through the two ends of the workover tool main body.
Further, the overlaying groove extends downwards from the outer wall of the workover tool body below the upper joint to the lower end face of the workover tool body, and the part, below the lower end face of the workover tool body, of the milling and grinding material layer forms a lower striking head; the circulating water channel comprises a central channel and a side channel, wherein the central channel is arranged along the central line of the workover tool main body, the side channel is arranged below the central channel, and one end of the side channel is communicated with the lower end of the central channel, and the other end of the side channel extends downwards in an inclined mode.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly described as follows:
FIG. 1 is a schematic structural diagram of an integrated tool for oil-water well workover treatment according to a first embodiment;
FIG. 2 isbase:Sub>A cross-sectional view taken along section A-A of FIG. 1;
FIG. 3 is a schematic structural diagram of a second embodiment of an integrated tool for well workover operations on oil and water wells;
fig. 4 is a view taken along direction a of fig. 3.
Description of the reference numerals: 100-workover tool body, 101-surfacing groove, 102-circulating water channel, 1021-central channel, 1022-side channel, 103-long groove, 110-upper joint and 200-milling material layer.
Detailed Description
In order to make the technical purpose, technical solution and advantageous effects of the present invention clearer, the technical solution of the present invention is further described below with reference to the accompanying drawings and specific embodiments.
An embodiment one of the integrated tool for the workover treatment of the oil-water well includes, as shown in fig. 1 to fig. 2, a workover tool main body 100 of a tubular structure, an upper joint 110 for connecting the bottom end of a milling and milling drilling tool is arranged at one end of the workover tool main body 100, a welding and spreading groove 101 for welding and spreading materials is arranged on the outer peripheral surface of the workover tool main body 100, a milling and milling material layer 200 is arranged in the welding and spreading groove 101, the outer diameter of the milling and milling material layer 200 is larger than the outer diameter of the workover tool main body 100, a circulating water channel 102 is formed in the inner cavity of the workover tool main body 100, an elongated slot 103 arranged parallel to the center line of the workover tool main body is arranged on the outer wall of the workover tool main body 100, the elongated slot 103 radially penetrates through the milling and milling material layer 200 in the workover tool main body 100, the number of the elongated slots 103 is two, and the two elongated slots 103 are symmetrically arranged about the center line of the workover tool main body 100.
The part of the milling material layer 200 far away from the upper joint 110 is a conical surface with a large upper part and a small lower part, and the part of the milling material layer 200 close to the upper joint 110 is a cylindrical surface. The part of the milling material layer 200 close to the upper joint 110 is spaced from the weld laying groove 101, and the spacing distance gradually increases from bottom to top. The milled material layer 200 is YD alloy or crushed hard alloy pieces. The overlaying groove 101 is arranged on the outer wall between two end faces of the workover tool body 100, a part of the workover tool body 100 below the overlaying groove 101 forms a lower striking head, and the circulating water channel 102 penetrates through two ends of the workover tool body 100.
When the device is used, the upper connector 110 is connected with a drilling tool and is put into a well, the deformation (damage) and scaling condition of a sleeve and the possible blocking depth are analyzed according to the previous fishing condition in the well, the suspension weight change of a weight indicator is observed, if more oil is condensed in the well and the blocking occurs midway, the well can be washed by hot water (above 80 ℃), clear water is required to be thoroughly seen, the well is slowly rotated and put down, and when the distance is 1.5-2 m from the position where the sleeve is repaired and the scale is removed by milling, rotary (forward rotation or reverse rotation) drilling and grinding are carried out, so that the synchronization of sleeve repair and scale removal is realized.
The drilling pressure is properly checked according to the conditions of reverse turning and return of the drilling tool, the sleeve repairing drilling pressure is generally controlled to be 1.0-2.5 t, the descaling drilling pressure is controlled to be 1.5-3.0 t, the discharge capacity is controlled to be 0.45-0.75M3/min, the drilling and grinding are carried out once every 5-10 min, the drilling and grinding are carried out until the fish top (fish head) of a drill clamp under the well is ground and milled, after the shaft is repeatedly and reversely drilled and smoothly, after a cycle period of large-discharge well washing, the drilling tool is lifted for 3-5 m, quickly lowered, the position close to the fish top is braked, the elastic extension of the drilling tool is utilized to carry out downward impact on the fish, and the integral operation of grinding and milling (descaling) of the sleeve repairing of the oil-water well is finished. If the underground fish falls for a certain stroke, the tracing fish-falling drilling tool encounters resistance, sleeve repairing, milling, descaling and shocking operations can be continuously carried out until the tracing fish-falling drilling tool is free, the underground fish falls on the sand surface of the artificial well bottom, the drilling can be started, and the fishing operation is continuously carried out by adopting a proper method.
If the circulating system has a fault, the drilling and grinding are stopped, the movable drilling tools with the positions of more than 50-80 m are lifted, if the rotating or lifting system has a fault, the well is washed by clean water for 2-2.5 circulating periods, and the drilling and maintenance can be stopped. The utility model has the advantages that: the method has the advantages of simple operation and construction, strong practical effect and repeatable use. The synchronization of sleeve repairing and descaling processes is realized, the independent use of underground jarring tools is reduced, and the requirements of the integrated processes of sleeve repairing, milling, descaling and jarring of the oil-water well are met.
In the second embodiment of the integrated tool for oil-water well workover treatment, as shown in fig. 3 to 4, a weld laying groove 101 extends downwards from the outer wall of the workover tool body below an upper joint 110 to the lower end face of the workover tool body 100, and the part of the milling and grinding material layer 200 below the lower end face of the workover tool body 100 forms a lower head; the circulating water passage 102 includes a central passage 1021 arranged along the center line of the workover tool body and a side passage 1022 arranged below the central passage 1021, wherein one end of the side passage 1022 is communicated with the lower end of the central passage 1021, and the other end of the side passage extends obliquely downwards.
Finally, it should be noted that: the above-mentioned embodiments are only used for illustrating but not limiting the technical solution of the present invention, and any equivalent replacement and modification or partial replacement which do not depart from the spirit and scope of the present invention should be covered within the protection scope of the claims of the present invention.
Claims (6)
1. The utility model provides an oil-water well workover is with integration instrument which characterized in that: the well repairing tool comprises a well repairing tool main body with a tubular structure, wherein one end of the well repairing tool main body is provided with an upper joint used for connecting the bottom end of a grinding and milling drilling tool, the outer peripheral surface of the well repairing tool main body is provided with a welding paving groove for arranging welding paving materials, a grinding and milling material layer is arranged in the welding paving groove, the outer diameter of the milling and milling material layer is larger than the outer diameter of the well repairing tool main body, a circulating water channel is formed in the inner cavity of the well repairing tool main body, the outer wall of the well repairing tool main body is provided with an elongated slot which is parallel to the center line of the well repairing tool main body, the elongated slot penetrates through the milling and milling material layer in the radial direction of the well repairing tool main body, the number of the two elongated slots is two, and the two elongated slots are symmetrically arranged about the center line of the well repairing tool main body.
2. The integrated tool for oil-water well workover treatment according to claim 1, wherein: the part of the milling material layer, which is far away from the upper joint, is a conical surface with a large upper part and a small lower part, and the part of the milling material layer, which is close to the upper joint, is a cylindrical surface.
3. The integrated tool for oil-water well workover treatment according to claim 1, wherein: and a gap is reserved between the part, close to the upper joint, of the milling and grinding material layer and the weld paving groove, and the gap distance is gradually increased from bottom to top.
4. The integrated tool for oil-water well workover treatment according to claim 1, wherein: the milling material layer is YD alloy or crushed hard alloy blocks.
5. An integrated tool for oil-water well workover treatment according to any one of claims 1 to 4, wherein: the welding groove is arranged on the outer wall between the two end faces of the workover tool main body, a part of the workover tool main body below the welding groove forms a lower striking head, and the circulating water channel penetrates through the two ends of the workover tool main body.
6. An integrated tool for oil-water well workover treatment according to any one of claims 1 to 4, wherein: the welding groove extends downwards from the outer wall of the workover tool body below the upper joint to the lower end face of the workover tool body, and a lower striking head is formed at the part of the milling and grinding material layer below the lower end face of the workover tool body; the circulating water channel comprises a central channel and a side channel, wherein the central channel is arranged along the central line of the workover tool main body, the side channel is arranged below the central channel, and one end of the side channel is communicated with the lower end of the central channel, and the other end of the side channel extends downwards in an inclined mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221147355.XU CN217582073U (en) | 2022-05-13 | 2022-05-13 | Oil-water well workover is with integration instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221147355.XU CN217582073U (en) | 2022-05-13 | 2022-05-13 | Oil-water well workover is with integration instrument |
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| Publication Number | Publication Date |
|---|---|
| CN217582073U true CN217582073U (en) | 2022-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221147355.XU Active CN217582073U (en) | 2022-05-13 | 2022-05-13 | Oil-water well workover is with integration instrument |
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| Country | Link |
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| CN (1) | CN217582073U (en) |
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2022
- 2022-05-13 CN CN202221147355.XU patent/CN217582073U/en active Active
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