CN221002695U - Novel steel wire CJ type and CJN type working cylinder - Google Patents
Novel steel wire CJ type and CJN type working cylinder Download PDFInfo
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- CN221002695U CN221002695U CN202322066739.XU CN202322066739U CN221002695U CN 221002695 U CN221002695 U CN 221002695U CN 202322066739 U CN202322066739 U CN 202322066739U CN 221002695 U CN221002695 U CN 221002695U
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- sealing surface
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 42
- 239000010959 steel Substances 0.000 title claims abstract description 42
- 238000007789 sealing Methods 0.000 claims abstract description 36
- 239000004576 sand Substances 0.000 claims abstract description 26
- 239000012535 impurity Substances 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 238000005266 casting Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
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Abstract
The utility model discloses a brand new steel wire CJ type working cylinder, which comprises: an upper connector; one end of the guiding area is connected with the upper connector; one end of the locking key groove is connected with the other end of the guide area and is used for being mutually clamped with the locking key of the blanking plug; the upper sand receiving groove is annularly arranged in the locking key groove; the stop step is arranged at the other end of the lock key groove and is used for being mutually clamped with the first stop end surface of the stopper; one end of the sealing surface is connected with the stop step and is used for sealing a gap between the blanking plug and the working cylinder; the lower connector is connected with the other end of the sealing surface. The utility model also discloses a brand new steel wire CJN working cylinder, which further comprises the following components on the basis of the CJ type working cylinder: the lower sand receiving groove is arranged at the other end of the sealing surface; the diameter-reducing ring is arranged between the lower sand receiving groove and the lower connector and is used for being mutually clamped with the second stop end face of the blanking plug; the plurality of pressure guide grooves are arranged at equal intervals along the circumferential direction of the reducing ring. The utility model has the characteristic of effectively solving the negative influence of impurities on the main function.
Description
Technical Field
The utility model relates to the technical field of steel wire working tools and underground fluid control, in particular to a brand new steel wire CJ type and CJN type working cylinder.
Background
The X-series and F-series steel wire casting and fishing plugs are always used in the domestic steel wire operation market, and belong to classical products, but because the existing oil and gas well underground has particle impurities which become normal, especially stratum sand particles are commonly existing, the particle impurities (sand particles or rust and the like) exist in the well, and because of the plug lock core structure, the working principle and the fishing mode of the plug, many X-series and F-series steel wire casting and fishing plugs can be problematic during fishing, after the X-series and F-series steel wire casting and fishing plugs are buried in the well by sand, the up-down pressure balance of the plug cannot be realized, the fishing is difficult or even impossible, and after the X-series steel wire casting and fishing plugs are buried by sand, the pressure balance cannot be realized, and the plug and the steel wire tool string are stamped or the plug and the steel tool string are pushed down by a liquid column existing in the oil pipe after the plug lock core is grabbed at the moment, so that the steel wire casting and fishing and the plug and the tool string can cause accidents of drilling and breaking or falling.
Because of the problems, the underground complex situation or accident can be caused, so that the prior art is difficult to adapt to the current well condition and working environment, and the development of new products is imperative.
Disclosure of utility model
The utility model designs and develops a brand new steel wire CJ type and CJN type working cylinder, achieves the plugging effect of the plug by combining a lock key groove and a stop step or combining the lock key groove, the stop step and a reducing ring, keeps the pressure balance of the plug up and down, and effectively solves the negative influence of impurities on the main function by combining a sand receiving groove with a pressure guiding groove.
The technical scheme provided by the utility model is as follows:
A new steel wire CJ type working cylinder comprising:
an upper connector; and
One end of the guiding area is connected with the upper connector;
One end of the lock key groove is connected with the other end of the guide area, and the diameter of the lock key groove is larger than that of the guide area and is used for being mutually clamped with the stopper locking key;
An upper sand receiving groove annularly arranged in the lock key groove;
A stop step arranged at the other end of the lock key groove and used for being mutually clamped with the first stop end surface of the stopper;
One end of the sealing surface is connected with the stop step, and the diameter of the sealing surface is smaller than that of the stop step, so that a gap between the blanking plug and the working cylinder is sealed;
and the lower connector is connected with the other end of the sealing surface.
Preferably, the upper connector and the lower connector are both detachably connected with the oil pipe.
Preferably, the lock key slot has an inner diameter of 67.88mm.
Preferably, the inner diameter of the stop step is 62.306mm.
Preferably, the inner diameter of the sealing surface is 60.452mm.
A brand new steel wire CJN working cylinder, which adopts the brand new steel wire CJ working cylinder, further comprising:
A lower sand receiving groove arranged at the other end of the sealing surface;
The diameter-reducing ring is arranged between the lower sand receiving groove and the lower connector, and the diameter of the diameter-reducing ring is smaller than that of the lower sand receiving groove and is used for being mutually clamped with the second stop end face of the blanking plug;
the plurality of pressure guide grooves are longitudinally and equally spaced along the circumference of the reducing ring.
Preferably, the inner diameter of the lower connector is 62.001mm.
Preferably, the inner diameter of the diameter-reducing ring is 56.877mm.
Preferably, the width of the plurality of pressure guide grooves is 2mm.
The beneficial effects of the utility model are as follows:
The brand new steel wire CJ type and CJN type working cylinders provided by the utility model have the advantages of simple structure and clear functional interfaces, and the negative influence of impurities on the main function is effectively solved by combining the two sand containing grooves and the plurality of pressure guide grooves.
Drawings
Fig. 1 is a schematic structural view of a novel steel wire CJ type working cylinder according to the present utility model.
Fig. 2 is a schematic size view of the steel wire CJ-type working cylinder according to the present utility model.
Fig. 3 is a schematic structural view of the brand new steel wire CJN type working cylinder according to the present utility model.
Fig. 4 is a schematic size view of a new steel wire CJN-type working cylinder according to the present utility model.
FIG. 5 is a schematic view of a section A-A of the new steel wire CJN-type working cylinder according to the present utility model.
Detailed Description
The present utility model is described in further detail below with reference to the drawings to enable those skilled in the art to practice the utility model by referring to the description.
As shown in fig. 1, the utility model provides a novel steel wire CJ-shaped working cylinder, which is formed by sequentially connecting six functional areas from top to bottom: the upper connector 110, the guide area 120, the locking key groove 130, the stop step 150, the sealing surface 160 and the lower connector 170, wherein the upper connector 110 is provided with external threads for connecting with an oil pipe; one end of the guiding area 120 is connected with the upper connector and is used for guiding the blanking plug to smoothly enter the working cylinder; one end of the lock key slot 130 is connected with the other end of the guide area 120, and the diameter of the lock key slot 130 is larger than that of the guide area 120, so as to receive and lock with the stopper lock key, and prevent the stopper from moving upwards away from the working cylinder; the stop step 150 is disposed at the other end of the locking groove 130, and is used for being mutually engaged with the first stop end surface of the stopper, and positioning and providing a supporting point for the stopper; one end of the sealing surface 160 is connected with the stop step 150, and the diameter of the sealing surface 160 is smaller than the diameters of the guide area 120 and the stop step 150, so that a complete sealing mechanism is formed by combining with the blanking plug sealing assembly, and a gap between the blanking plug and the working cylinder is sealed, so that the pressure in the well (the fluid in the well) is effectively controlled; a lower connector 170 is connected to the other end of the sealing surface 160, and the lower connector 170 is also provided with external threads for connection with an oil pipe.
Wherein, an upper sand receiving groove 140 is annularly arranged in the lock key groove 130 and is used for receiving sand particles in the well, so as to prevent the sand particles in the lock key groove 130 from affecting the working performance of the lock key.
In this embodiment, the stopper sealing assembly is a plurality of sealing rings sleeved on the outer side of the stopper at intervals, and the diameter of the sealing surface 160 is smaller than that of the guiding area 120 and the stop step 150, so that the stopper sealing assembly can smoothly pass through the guiding area 120 and the stop step 150 and be clamped on the sealing surface 160 in the process of sitting the stopper in the working cylinder, thereby realizing the sealing effect.
As shown in fig. 2, in the present embodiment, the locking groove 130 has an inner diameter of 67.88mm, the stop step 150 has an inner diameter of 62.306mm, and the sealing surface 160 has an inner diameter of 60.452mm.
The brand new steel wire CJ type working cylinder provided by the utility model is of an upper stop type and is mainly matched with a CJ type blanking plug and used for receiving the CJ type blanking plug.
The working process of the brand new steel wire CJ type working cylinder provided by the utility model is as follows:
The CJ type working barrel is connected to the tubing string through the upper connector 110 and the lower connector 170 in advance and enters the well together with the tubing string, the CJ type blanking tool for steel wire operation is used for delivering the CJ type blanking plug to be seated in the CJ type working barrel according to operation requirements, a stop step 150, a sealing surface 160 and a lock key groove 130 which are preset in the CJ type working barrel are integrated tightly with a first stop end face of the blanking plug, a sealing assembly and a locking key block, positioning, locking and sealing functions are achieved, the blanking effect of the blanking plug (the blanking plug is achieved, the blanking plug is controlled to be used for controlling fluid) of the blanking plug, and the CJ type blanking plug is fished out from the CJ type working barrel according to operation requirements by steel wire operation JDC or SB, and the blanking plug is contacted with the blanking plug to fluid in the well.
As shown in fig. 3, the present utility model further provides a new steel wire CJN-type working cylinder, which further includes: the lower sand receiving groove 180, the reducing ring 190 and the plurality of pressure guide grooves 191, wherein the lower sand receiving groove 180 is arranged at the other end of the sealing surface 160 and is used for receiving partial sand pushed down by the sealing assembly of the blanking plug so as not to influence the blanking plug to be completely seated; the diameter-reducing ring 190 is disposed between the lower sand receiving groove 180 and the lower connector 170, and the diameter of the diameter-reducing ring 190 is smaller than the diameter of the lower sand receiving groove 180, so as to be engaged with the second stop end surface of the plug, thereby positioning the plug and providing a supporting point for the plug; the plurality of pressure guide grooves 191 are arranged at equal intervals along the circumferential direction of the diameter reduction ring 190, and the plurality of pressure guide grooves 191 are coaxially arranged with the diameter reduction ring and are used for preventing the second stop end surface of the blanking plug from contacting the end surface of the diameter reduction ring 190 to form a sealing state.
As shown in fig. 4, in the present embodiment, the inner diameter of the lower connector 170 is 62.001mm, and the inner diameter of the reducing ring 190 is 56.877mm.
As shown in fig. 5, in the present embodiment, the number of the pressure guide grooves 191 is 4, and the 4 pressure guide grooves 191 are longitudinally and equally spaced in the circumferential direction of the diameter reducing ring 190, and the width of the 4 pressure guide grooves 191 is 2mm.
The brand new steel wire CJN type working cylinder provided by the utility model is of a lower part stop type and is mainly matched with a CJN type blanking plug.
The working process of the brand new steel wire CJN type working cylinder provided by the utility model is as follows:
The CJN type working cylinder is connected to the tubing string through the upper connector 110 and the lower connector 170 in advance and enters the well together with the tubing string, a CJN type lower tool for steel wire operation is used for delivering a CJN type blanking plug into the CJN type working cylinder according to operation requirements, a lock key slot 130, a stop step 150, a sealing surface 160 and a reducing ring 190 which are preset in the CJN type working cylinder are integrated tightly with a blanking plug lock key block, a first stop end face, a sealing assembly and a second stop end face in four places, so that positioning, locking and sealing functions are realized, the blanking plug blocking function (blanking plug fluid controlling function) is achieved, and a CJN type blanking plug is fished out of the CJN type working cylinder according to operation requirements when the steel wire operation JDC or SB is put into for blocking the well fluid by the contact blanking plug.
The brand new steel wire CJ type and CJN type working cylinder provided by the utility model achieves the plugging effect of the plug through the combination of the lock key groove and the stop step or the lock key groove, the stop step and the reducing ring, has a simple structure, has clear functional interfaces, and effectively solves the negative influence of impurities on the main function through the combination of the sand receiving groove and the pressure guiding groove.
Although embodiments of the present utility model have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the utility model would be readily apparent to those skilled in the art, and accordingly, the utility model is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (9)
1. A new steel wire CJ type working cylinder, characterized by comprising:
an upper connector; and
One end of the guiding area is connected with the upper connector;
One end of the lock key groove is connected with the other end of the guide area, and the diameter of the lock key groove is larger than that of the guide area and is used for being mutually clamped with the stopper locking key;
An upper sand receiving groove annularly arranged in the lock key groove;
A stop step arranged at the other end of the lock key groove and used for being mutually clamped with the first stop end surface of the stopper;
One end of the sealing surface is connected with the stop step, and the diameter of the sealing surface is smaller than that of the stop step, so that a gap between the blanking plug and the working cylinder is sealed;
and the lower connector is connected with the other end of the sealing surface.
2. The steel wire CJ type working cylinder according to claim 1, wherein the upper and lower connectors are detachably connected to the oil pipe.
3. The steel wire-new CJ working cylinder according to claim 2, wherein the lock key groove has an inner diameter of 67.88mm.
4. A new steel wire CJ mandrel according to claim 3, wherein the stop step has an inner diameter of 62.306mm.
5. The steel wire-new CJ mandrel of claim 4, wherein said sealing surface has an inner diameter of 60.452mm.
6. A new steel wire CJN-type working cylinder, characterized by adopting the new steel wire CJ-type working cylinder as defined in claim 1, further comprising:
A lower sand receiving groove arranged at the other end of the sealing surface;
The diameter-reducing ring is arranged between the lower sand receiving groove and the lower connector, and the diameter of the diameter-reducing ring is smaller than that of the lower sand receiving groove and is used for being mutually clamped with the second stop end face of the blanking plug;
the plurality of pressure guide grooves are longitudinally and equally spaced along the circumference of the reducing ring.
7. The new wire CJN section of work drum of claim 6, wherein the inner diameter of the lower connector is 62.001mm.
8. The new wire CJN mandrel of claim 7 wherein said reduced diameter ring has an inner diameter of 56.877mm.
9. The new wire CJN-type mandrel of claim 8 wherein said plurality of guide grooves have a width of 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322066739.XU CN221002695U (en) | 2023-08-03 | 2023-08-03 | Novel steel wire CJ type and CJN type working cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322066739.XU CN221002695U (en) | 2023-08-03 | 2023-08-03 | Novel steel wire CJ type and CJN type working cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221002695U true CN221002695U (en) | 2024-05-24 |
Family
ID=91085989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322066739.XU Active CN221002695U (en) | 2023-08-03 | 2023-08-03 | Novel steel wire CJ type and CJN type working cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221002695U (en) |
-
2023
- 2023-08-03 CN CN202322066739.XU patent/CN221002695U/en active Active
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