CN217538645U - High-temperature and high-pressure testing packer for barrel type slips - Google Patents
High-temperature and high-pressure testing packer for barrel type slips Download PDFInfo
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- CN217538645U CN217538645U CN202220858961.6U CN202220858961U CN217538645U CN 217538645 U CN217538645 U CN 217538645U CN 202220858961 U CN202220858961 U CN 202220858961U CN 217538645 U CN217538645 U CN 217538645U
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- slip
- deblocking
- rubber cylinder
- cylinder
- sleeve
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Abstract
The utility model relates to a to the technical field of the instrument in the pit for oil recovery, a cylinder slips high temperature high pressure test packer, including the center tube, the center tube vertically inserts in the well, and the whole body axial cover of center tube is equipped with sealing mechanism, and sealing mechanism's bottom axial is equipped with slips and packing element and sits the sealing mechanism, and slips and packing element sit the bottom axial cover of sealing mechanism and are equipped with anchoring mechanism, the utility model discloses a center tube wholly runs through the packer, very big improvement the stability of packer, can also provide big internal diameter ring accuse to improve oil recovery efficiency, through putting into solitary deblocking instrument, lift packer deblocking endotheca, cut the deblocking pin and realize the deblocking, solitary deblocking mechanism can ensure the stability of packer in the pit, avoids causing the wrong deblocking; the utility model discloses simple structure, when deblocking mechanism became invalid, the cutting knife can be gone into down, and the packer deblocking is realized to the cutting center tube, reduces the well workover risk.
Description
Technical Field
The utility model relates to a to the technical field of the downhole tool for the oil recovery, specifically be a cylinder slips high temperature high pressure test packer.
Background
At the initial stage of oil field development, after the well completion, need carry out the oil recovery test, when the test well is deep well or ultra-deep well, bottom pressure and bottom temperature all can be very high this moment, and after the test is accomplished, then need carry out oil recovery, so the casing damage should be reduced as far as possible in the testing process, and will ensure that the packer is sealed and the deblocking is reliable, so need a can be high temperature resistant high pressure resistant packer.
SUMMERY OF THE UTILITY MODEL
The utility model provides a cylinder slips high temperature high pressure test packer, specific embodiment is as follows:
the utility model provides a cartridge slips high temperature high pressure test packer, includes that center tube, sealing mechanism, slips and packing element sit to seal mechanism, anchoring mechanism and deblocking mechanism, and in the center tube vertically inserted well, the whole body axial cover of center tube was equipped with sealing mechanism, and sealing mechanism's bottom axial is equipped with slips and packing element and sits to seal the mechanism, and slips and packing element sit to seal the bottom axial cover of mechanism and be equipped with anchoring mechanism, and the tail end axial cover of center tube is equipped with deblocking mechanism, and deblocking mechanism arranges anchoring mechanism's bottom in.
Furthermore, the inner side of the top end of the central tube is provided with a positioning internal thread so as to facilitate the thread positioning of a positioning claw on the external unsealing tool.
Sealing mechanism includes packing element retaining ring, guide pin, go up the shoulder pad, go up the packing element, well packing element, packing element and lower shoulder pad down, the packing element retaining ring sets firmly on the outer wall of center tube through the guide pin, the bottom of packing element retaining ring from top to bottom is equipped with the packing element in proper order, well packing element and packing element down, the upper and lower both ends of going up packing element and packing element down are provided with shoulder pad and lower shoulder pad respectively, sealing mechanism adopts the design of climbing formula, and the both ends of packing element have the shoulder pad, can improve sealing mechanism bearing capacity greatly.
Slips and packing element seat seal mechanism include the packing element piston, the pneumatic cylinder, the piston retaining ring, the slips piston, the catch sleeve, the catch, seat cover and seat seal pin, packing element piston axial cover is located on the outer wall of center tube, the bottom of packing element piston is provided with the piston retaining ring, the outside of piston retaining ring and the bottom that is located the packing element piston are provided with the pneumatic cylinder, the inboard of pneumatic cylinder is provided with the slips piston, the bottom of slips piston is fixed through seat cover and seat seal pin, the top of seat cover just is located the bottom of pneumatic cylinder and is provided with the catch sleeve, it is equipped with the catch to press from both sides between catch sleeve and the slips piston the two.
The anchoring mechanism comprises a connecting sleeve, a slip locking ring, an upper cone, an upper slip pin, a cylinder slip, a lower slip pin, a lower cone and a lower cone guide pin, wherein the connecting sleeve is axially sleeved at the bottom end of the slip piston, the bottom end of the connecting sleeve is provided with the upper cone, the slip locking ring is clamped between the upper cone and the central tube, the bottom end of the upper cone is connected with the lower cone through the cylinder slip, the upper cone and the cylinder slip are fixed between the cylinder slip and the lower cone through the upper slip pin and the lower slip pin respectively, the bottom end of the lower cone is fixed through the lower cone guide pin, the anchoring mechanism adopts a cylinder slip structure, anchoring is reliable, and the casing is not damaged.
Deblocking mechanism includes lower adapter sleeve, the deblocking retaining ring, split deblocking ring, the deblocking endotheca, the deblocking pin, deblocking overcoat and lower clutch, lower adapter sleeve sets up in the bottom of centrum down, it is equipped with the deblocking retaining ring to press from both sides between lower adapter sleeve and the center tube, the bottom of lower adapter sleeve is provided with the deblocking endotheca, it is equipped with split deblocking ring to press from both sides between deblocking endotheca and the center tube, the outer wall of deblocking endotheca is located to deblocking overcoat axial cover, and it is fixed through the deblocking pin, the bottom axial cover of deblocking endotheca is equipped with the lower clutch, solitary deblocking instrument deblocking need be gone into to deblocking mechanism, can ensure the stability of packer in the pit, avoid causing the mistake deblocking.
Furthermore, the upper end and the lower end of the deblocking sleeve are in interference fit with the lower connecting sleeve and the lower connector respectively.
Owing to adopted above technical scheme, the beneficial technological effect of the utility model is that:
1. the utility model adopts the central tube to run through the packer, greatly improving the stability of the packer and providing large inner diameter ring control, thereby improving the oil extraction efficiency;
2. the utility model discloses a lower solitary deblocking instrument, lift packer deblocking endotheca, cut the deblocking pin and realize the deblocking, solitary deblocking mechanism can ensure the stability of packer in the pit, avoids causing the mistake deblocking;
3. the utility model discloses simple structure, when deblocking mechanism became invalid, the cutting knife can be gone into down, and the packer deblocking is realized to the cutting center tube, reduces the well workover risk.
Drawings
FIG. 1 is a cross-sectional view of a high temperature and high pressure test packer with a cartridge slip of the present invention;
fig. 2 is a cross-sectional view of the sealing mechanism of the present invention;
FIG. 3 is an enlarged view of the portion A of FIG. 2;
FIG. 4 is a cross-sectional view of the slip and packing element setting mechanism of the present invention;
fig. 5 is a cross-sectional view of an anchoring mechanism according to the present invention;
FIG. 6 is a cross-sectional view of the deblocking mechanism of the present invention;
fig. 7 is an enlarged view of a portion B in fig. 6 according to the present invention.
Description of reference numerals:
1. a central tube, 2, a sealing mechanism, 3, a rubber cylinder and slip setting mechanism, 4, an anchoring mechanism, 5, an unsealing mechanism,
21. a rubber cylinder retaining ring 22, a guide pin 23, an upper shoulder protector 24, an upper rubber cylinder 25, a middle rubber cylinder 26, a rubber cylinder 27 and a lower shoulder protector,
31. a rubber cylinder piston 32, a hydraulic cylinder 33, a piston retainer ring 34, a slip piston 35, a locking ring sleeve 36, a locking ring 37, a setting sleeve 38, a setting pin,
41. a connecting sleeve, 42, a slip locking ring, 43, an upper cone, 44, an upper slip pin, 45, a cylinder slip, 46, a lower slip pin, 47, a lower cone, 48, a lower cone guide pin,
51. lower connecting sleeve, 52, deblocking check ring, 53, split deblocking ring, 54, deblocking inner sleeve, 55, deblocking pin, 56, deblocking outer sleeve, 57, lower joint.
Detailed Description
The following description of the embodiments of the present invention refers to the accompanying drawings:
it should be noted that the structure, proportion, size and the like shown in the drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, and any modification of the structure, change of the proportion relation or adjustment of the size should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function and the achievable purpose of the present invention.
Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
Embodiment 1, combine fig. 1, the embodiment provides a cylinder slips high temperature high pressure test packer, including center tube 1, center tube 1 vertically inserts in the well, the whole body axial cover of center tube 1 is equipped with sealing mechanism 2, sealing mechanism 2's bottom axial is equipped with slips and packing element and sits and seal mechanism 3, slips and packing element sit and seal mechanism 3's bottom axial cover and be equipped with anchoring mechanism 4, the tail end axial cover of center tube 1 is equipped with deblocking mechanism 5, deblocking mechanism 5 arranges anchoring mechanism 4's bottom in, the inboard on 1 top of center tube is provided with the location internal thread, concretely, internal screw thread threaded connection is gone up with center tube 1 to the locating pawl on the outside deblocking instrument, so as to center tube 1 thread location.
With reference to fig. 2 and 3, the sealing mechanism 2 includes a rubber cylinder retainer ring 21, the rubber cylinder retainer ring 21 is fixedly arranged on the outer wall of the central tube 1 through a guide pin 22, the bottom of the rubber cylinder retainer ring 21 is sequentially provided with an upper rubber cylinder 24, a middle rubber cylinder 25 and a lower rubber cylinder 26 from top to bottom, the upper and lower ends of the upper rubber cylinder 24 and the lower rubber cylinder 26 are respectively provided with an upper shoulder protector 23 and a lower shoulder protector 27, and specifically, the rubber cylinder retainer ring 21 is provided with a copper pin, so that the packer can be prevented from being set in advance in the setting process; the upper rubber cylinder 24, the middle rubber cylinder 25 and the lower rubber cylinder 26 adopt a climbing structure and can bear 70Ma pressure difference and 204 ℃ high temperature, and two ends of the upper rubber cylinder 24, the middle rubber cylinder 25 and the lower rubber cylinder 26 are provided with shoulder protectors, so that the pressure bearing capacity of the sealing mechanism 2 can be greatly improved.
With reference to fig. 4, the slip and packing element setting mechanism 3 includes a packing element piston 31, the packing element piston 31 is axially sleeved on the outer wall of the central tube 1, a piston retaining ring 33 is disposed at the bottom of the packing element piston 31, a hydraulic cylinder 32 is disposed outside the piston retaining ring 33 and at the bottom of the packing element piston 31, a slip piston 34 is disposed inside the hydraulic cylinder 32, the bottom of the slip piston 34 is fixed by a setting sleeve 37 and a setting pin 38, a locking ring sleeve 35 is disposed at the top of the setting sleeve 37 and at the bottom of the hydraulic cylinder 32, and a locking ring 36 is sandwiched between the locking ring sleeve 35 and the slip piston 34, specifically, the slip and packing element setting mechanism 3 are independent from each other and can respectively set the packing element and the slip, and the setting pin 38 is mounted on the setting sleeve 37, which can prevent the slip and packing element setting mechanism 3 from moving in advance due to water hammer phenomenon and further cause the packer to set in advance.
Referring to fig. 5, the anchoring mechanism includes a connection sleeve 41, the connection sleeve 41 is axially sleeved at the bottom end of the slip piston 34, the bottom end of the connection sleeve 41 is provided with an upper cone 43, a slip locking ring 42 is clamped between the upper cone 43 and the central tube 1, the bottom end of the upper cone 43 is connected with a lower cone 47 through a barrel-type slip 45, the upper cone 43 and the barrel-type slip 45, and the barrel-type slip 45 and the lower cone 47 are fixed through an upper slip pin 44 and a lower slip pin 46, respectively, and the bottom end of the lower cone 47 is fixed through a lower cone guide pin 48.
In this embodiment, liquid enters the rubber cylinder and slip setting mechanism 3 from the liquid outlet hole of the central tube 1, when the internal pressure of the rubber cylinder and slip setting mechanism 3 reaches a certain value, the setting pin 38 is cut off, at this time, the rubber cylinder piston 31 and the slip piston 34 respectively move towards the upper end under the action of pressure, the upper rubber cylinder 24, the middle rubber cylinder 25 and the lower rubber cylinder 26 are pushed to set first, when the upper rubber cylinder 24, the middle rubber cylinder 25 and the lower rubber cylinder 26 move to a certain degree, the upper slip pin 44 and the lower slip pin 46 reach the cutting pressure, the upper slip pin 44 and the lower slip pin 46 cut off the setting cylinder slip 45, and when the cylinder slip 45 is completely set, the rubber cylinder piston 31 continues to move upwards, the upper rubber cylinder 24, the middle rubber cylinder 25 and the lower rubber cylinder 26 continue to be set, and sealing is achieved.
In embodiment 2, with reference to fig. 6 and 7, this embodiment further provides a tubular slip high-temperature and high-pressure testing packer, where the unsetting mechanism 5 includes a lower connection sleeve 51, the lower connection sleeve 51 is disposed at a bottom end of the lower cone 47, an unsetting collar 52 is interposed between the lower connection sleeve 51 and the central tube 1, an unsetting inner sleeve 54 is disposed at a bottom of the lower connection sleeve 51, a split unsetting ring 53 is interposed between the unsetting inner sleeve 54 and the central tube 1, an unsetting outer sleeve 56 is axially sleeved on an outer wall of the unsetting inner sleeve 54 and is fixed by an unsetting pin 55, a lower joint 57 is axially sleeved at a bottom end of the unsetting inner sleeve 54, specifically, a separate unsetting tool is inserted for unsetting during unsetting, the unsetting inner sleeve 54 of the packer is lifted to cut the unsetting pin 55, and the unsetting inner sleeve 54 and the unsetting outer sleeve 56 of the unsetting sleeve move upward, so that the split unsetting ring 53 falls into a trapezoidal groove of the unsetting inner sleeve 54, thereby achieving unsetting.
Embodiment 3, this embodiment provides a method for using a cartridge slip high-temperature high-pressure test packer based on the above.
When the packer is used, firstly, an external setting tool is connected to a central tube 1 of the packer, the upper part of the external setting tool is connected with an oil tube, then the external setting tool is set to a specified position, the oil tube presses the setting packer, at the moment, liquid enters a rubber cylinder and slip setting mechanism 3 from a liquid outlet hole of the central tube 1, when the internal pressure reaches a certain value, a setting pin 38 is cut off, at the moment, a rubber cylinder piston 31 and a slip piston 34 respectively move towards the upper end under the action of pressure, the upper rubber cylinder 24, the middle rubber cylinder 25 and the lower rubber cylinder 26 are pushed to be set firstly, when the upper rubber cylinder 24, the middle rubber cylinder 25 and the lower rubber cylinder 26 move to a certain degree, at the moment, an upper slip pin 44 and a lower slip pin 46 reach the cutting pressure, the upper slip pin 44 and the lower slip pin 46 cut off the setting barrel type slip 45, at the moment, the rubber cylinder piston 31 continues to move upwards, the upper rubber cylinder 24, the middle rubber cylinder 25 and the lower rubber cylinder 26 are continuously set, sealing is realized, and the setting packer is completed.
When the packer needs the deblocking, go into dedicated deblocking instrument to the center tube 1 in, the locating pawl and the trapezoidal portion clamping on the deblocking instrument, the upper end of deblocking instrument and the internal thread screw thread positioning connection on the center tube 1, lift the deblocking instrument this moment, drive deblocking endotheca 54, cut deblocking pin 55, deblocking endotheca 54, deblocking overcoat 56 moves to the upper end, thereby make split deblocking ring 53 fall into the trapezoidal groove of deblocking endotheca 54, realize the deblocking, continue to lift can deblocking cylinder slips 45, thereby with the whole deblocking of packer, take out it can.
Many other changes and modifications may be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, and that the scope of the invention is defined by the appended claims.
Claims (5)
1. A high-temperature and high-pressure test packer of a cylinder type slip comprises a central pipe (1), a sealing mechanism (2), a slip and rubber cylinder setting mechanism (3), an anchoring mechanism (4) and an unsealing mechanism (5),
the central pipe (1) is longitudinally inserted into a well, a sealing mechanism (2) is axially sleeved on the whole body of the central pipe (1), a slip and rubber cylinder setting mechanism (3) is axially arranged at the bottom of the sealing mechanism (2), an anchoring mechanism (4) is axially sleeved at the bottom end of the slip and rubber cylinder setting mechanism (3), a deblocking mechanism (5) is axially sleeved at the tail end of the central pipe (1), the deblocking mechanism (5) is arranged at the bottom end of the anchoring mechanism (4),
the slip and rubber cylinder setting mechanism (3) comprises a rubber cylinder piston (31), a hydraulic cylinder (32), a piston check ring (33), a slip piston (34), a check ring sleeve (35), a check ring (36), a setting sleeve (37) and a setting pin (38), the rubber cylinder piston (31) is axially sleeved on the outer wall of the central tube (1), the piston check ring (33) is arranged at the bottom of the rubber cylinder piston (31), the hydraulic cylinder (32) is arranged on the outer side of the piston check ring (33) and at the bottom end of the rubber cylinder piston (31), the slip piston (34) is arranged on the inner side of the hydraulic cylinder (32), the bottom end of the slip piston (34) is fixed with the setting pin (38) through the setting sleeve (37), the check ring sleeve (35) is arranged at the top end of the setting sleeve (37) and at the bottom end of the hydraulic cylinder (32), the check ring (36) is clamped between the slip sleeve (35) and the slip piston (34),
the anchoring mechanism (4) comprises a connecting sleeve (41), a slip locking ring (42), an upper cone body (43), an upper slip pin (44), a cylinder slip (45), a lower slip pin (46), a lower cone body (47) and a lower cone body guide pin (48), wherein the connecting sleeve (41) is axially sleeved at the bottom end of the slip piston (34), the bottom end of the connecting sleeve (41) is provided with the upper cone body (43), the slip locking ring (42) is clamped between the upper cone body (43) and the central pipe (1), the bottom end of the upper cone body (43) is connected with the lower cone body (47) through the cylinder slip (45), the upper cone body (43) is fixed with the cylinder slip (45), the cylinder slip (45) and the lower cone body (47) through the upper slip pin (44) and the lower slip pin (46), and the bottom end of the lower cone body (47) is fixed through the lower guide pin (48).
2. A bowl slip hpht test packer as claimed in claim 1, characterized in that the inside of the top end of the central tube (1) is provided with a female locating thread.
3. The high-temperature and high-pressure test packer with a cylinder slip as claimed in claim 1, wherein the sealing mechanism (2) comprises a rubber cylinder retaining ring (21), a guide pin (22), an upper shoulder protector (23), an upper rubber cylinder (24), a middle rubber cylinder (25), a lower rubber cylinder (26) and a lower shoulder protector (27),
the rubber cylinder check ring (21) is fixedly arranged on the outer wall of the central pipe (1) through a guide pin (22), the bottom of the rubber cylinder check ring (21) is sequentially provided with an upper rubber cylinder (24), a middle rubber cylinder (25) and a lower rubber cylinder (26) from top to bottom, and the upper end and the lower end of the upper rubber cylinder (24) and the lower rubber cylinder (26) are respectively provided with an upper shoulder protector (23) and a lower shoulder protector (27).
4. The high-temperature and high-pressure barrel slip test packer according to claim 1, wherein the unset mechanism (5) comprises a lower connecting sleeve (51), a unset check ring (52), a split unset ring (53), an inner unset sleeve (54), a unset pin (55), an outer unset sleeve (56) and a lower connector (57),
lower adapter sleeve (51) set up in the bottom of lower centrum (47), press from both sides between lower adapter sleeve (51) and center tube (1) and be equipped with deblocking retaining ring (52), the bottom of lower adapter sleeve (51) is provided with deblocking endotheca (54), press from both sides between deblocking endotheca (54) and center tube (1) and be equipped with split deblocking ring (53), the outer wall of deblocking endotheca (54) is located to deblocking overcoat (56) axial cover, and fixed through deblocking pin (55), the bottom axial cover of deblocking endotheca (54) is equipped with lower clutch (57).
5. A bowl slip HTHP test packer as claimed in claim 4, wherein the upper and lower ends of said release casing (56) are interference fitted with the lower connection sleeve (51) and the lower joint (57), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220858961.6U CN217538645U (en) | 2022-04-14 | 2022-04-14 | High-temperature and high-pressure testing packer for barrel type slips |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220858961.6U CN217538645U (en) | 2022-04-14 | 2022-04-14 | High-temperature and high-pressure testing packer for barrel type slips |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217538645U true CN217538645U (en) | 2022-10-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220858961.6U Active CN217538645U (en) | 2022-04-14 | 2022-04-14 | High-temperature and high-pressure testing packer for barrel type slips |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217538645U (en) |
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2022
- 2022-04-14 CN CN202220858961.6U patent/CN217538645U/en active Active
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