CN218844274U - Open formula oil recovery sliding sleeve by force - Google Patents
Open formula oil recovery sliding sleeve by force Download PDFInfo
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- CN218844274U CN218844274U CN202320053299.1U CN202320053299U CN218844274U CN 218844274 U CN218844274 U CN 218844274U CN 202320053299 U CN202320053299 U CN 202320053299U CN 218844274 U CN218844274 U CN 218844274U
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Abstract
The utility model discloses a strong formula of opening oil recovery sliding sleeve contains a cylindric sliding sleeve urceolus, the inside of sliding sleeve urceolus be equipped with a cylindric sliding sleeve sealing cylinder, the inner wall middle part of the sliding sleeve sealing cylinder be equipped with an annular spacing circular bead, the inside of the sliding sleeve sealing cylinder be equipped with a sliding sleeve piston, the head of sliding sleeve piston be equipped with a piston siphunculus, the piston siphunculus on cup joint a strong spring that opens, the head of piston siphunculus be equipped with a sliding sleeve pressure head, the center of sliding sleeve pressure head be equipped with a plurality of sliding sleeve upper through-holes, the afterbody terminal surface of sliding sleeve pressure head on be equipped with a pressure head circular bead, the afterbody of the sliding sleeve sealing cylinder be equipped with a sliding sleeve end cap, the outer wall head of the sliding sleeve sealing cylinder with the outer wall head of sliding sleeve urceolus between be equipped with a top connection. The forced-open type oil extraction sliding sleeve is simple in structure and easy and convenient to operate, can be matched with other underground tools for use, aims at possible failure conditions, does not influence normal production, and is high in fault tolerance rate.
Description
Technical Field
The utility model relates to an oil production equipment, more exactly, be a open formula oil recovery sliding sleeve by force.
Background
In the production process of an oil production well, oil and gas overflow caused by damage and leakage of a wellhead device frequently occurs. In the sucker-rod pumping system, when devices such as a wellhead oil extraction four-way joint and a polished rod blowout preventer leak, an oil gas channel in an oil pipe cannot be closed by closing a gate or other effective means, and oil gas is partially high in gas-oil ratio or has a certain self-blowing capacity, so that the oil gas cannot be effectively isolated, and only the well can be pressed first and then operated or blown out when corresponding devices are maintained and replaced, so that the reservoir protection is not facilitated, and greater well control and environmental protection risks also exist.
The existing method for solving the problem mainly adopts a method of additionally arranging a corresponding device between a pump cylinder and a fixed valve of an underground oil well pump and movably closing an oil pipe channel through a sucker rod, the prior art mainly has two types, firstly, a plunger is additionally arranged at the bottom of a piston of the oil well pump and is matched with a sealing sleeve to form sealing, the method needs to refit the piston of the oil well pump, the sealing capability of the plunger type sealing mode is limited, the condition of larger pressure difference cannot be met, the piston works in a liquid flow channel of the pump cylinder for a long time, and the outer wall corrosion or scaling is easy to occur, so that the sealing is not caused; and secondly, a sliding sleeve device capable of operating a switch by pressing down the sucker rod is arranged at the upper part of the fixed valve, and can be closed by pressing down once and opened by pressing down again. Although the method solves the pressure bearing problem, the sliding sleeve structure is relatively complex, the sliding sleeve is easy to lose efficacy due to corrosion and sand accumulation when liquid flows through the component part of the sliding sleeve, if the sliding sleeve cannot be opened after being closed, production can be recovered only through workover treatment, and the cost is extremely high.
SUMMERY OF THE UTILITY MODEL
The utility model discloses solve the technical problem that prior art exists mainly to a formula oil recovery sliding sleeve is opened by force is provided.
The above technical problem of the present invention can be solved by the following technical solutions:
a forced-open type oil extraction sliding sleeve is characterized in that the Jiang Qi type oil extraction sliding sleeve comprises a cylindrical sliding sleeve outer cylinder, a cylindrical sliding sleeve sealing cylinder is arranged inside the sliding sleeve outer cylinder, an annular limiting shoulder is arranged in the middle of the inner wall of the sliding sleeve sealing cylinder, a sealing cylinder liquid inlet hole is formed in the tail of the inner wall of the sliding sleeve sealing cylinder, a sliding sleeve piston is arranged inside the sliding sleeve sealing cylinder, a piston through pipe is arranged at the head of the sliding sleeve piston, a forced-open spring is sleeved on the piston through pipe, the bottom of the forced-open spring abuts against the limiting shoulder, a sliding sleeve pressure head is arranged at the head of the piston through pipe, a plurality of through holes in the sliding sleeve are formed in the center of the sliding sleeve pressure head, a pressure head is arranged on the end face of the tail of the sliding sleeve pressure head, and the head of the forced-open spring abuts against the pressure head shoulder,
the tail part of the sliding sleeve sealing cylinder is provided with a sliding sleeve plug,
an upper joint is arranged between the head of the outer wall of the sliding sleeve sealing barrel and the head of the outer wall of the sliding sleeve outer barrel.
As a preferred embodiment of the present invention, the first and second,
the sliding sleeve piston and the piston through pipe are of an integrated structure.
As a preferred embodiment of the present invention, the first and second,
the upper joint is connected with the sliding sleeve sealing barrel and the sliding sleeve outer barrel through threads,
the sliding sleeve pressure head is connected with the piston through pipe through threads,
the sliding sleeve outer barrel is connected with the upper joint through threads, and outer barrel threads are arranged at the tail of the sliding sleeve outer barrel.
As a preferred embodiment of the present invention,
and a plurality of sealing O-shaped rings are arranged between the tail part of the outer wall of the sliding sleeve piston and the tail part of the inner wall of the sliding sleeve sealing cylinder.
As a preferred embodiment of the present invention, the first and second,
the number of the through holes in the sliding sleeve is four.
The utility model discloses a Jiang Qi formula oil recovery sliding sleeve has following advantage:
1. the utility model discloses a sliding sleeve core seal part avoids the oil gas flow region, does not receive the fluid erosion, does not produce the relative operation of sealing member when normal production, even if in the pit long-time service also can be better assurance reliability.
2. The utility model discloses the structure is independent, need not to reequip current oil-well pump piston or pump barrel, can use in the producing well of multiple type oil-well pump, has better adaptability.
3. The utility model discloses the structure is simple relatively, and is easy and simple to handle, can use with other instrument cooperations in the pit, to possible inefficacy situation, also does not influence normal production, and the fault-tolerant rate is high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of Jiang Qi type oil recovery sliding sleeve of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is an enlarged schematic view of a portion B in fig. 1.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.
As shown in fig. 1 to fig. 3, the forced-open oil extraction sliding sleeve comprises a cylindrical sliding sleeve outer cylinder 11, a cylindrical sliding sleeve sealing cylinder 6 is arranged inside the sliding sleeve outer cylinder 11, an annular limiting shoulder 61 is arranged in the middle of the inner wall of the sliding sleeve sealing cylinder 6, a sealing cylinder liquid inlet hole 9 is arranged at the tail of the inner wall of the sliding sleeve sealing cylinder 6, a sliding sleeve piston 7 is arranged inside the sliding sleeve sealing cylinder 6, a piston through pipe 5 is arranged at the head of the sliding sleeve piston 7, a forced-open spring 4 is sleeved on the piston through pipe 5, the bottom of the forced-open spring 4 abuts against the limiting shoulder 61, a sliding sleeve pressure head 3 is arranged at the head of the piston through pipe 5, a plurality of sliding sleeve upper through holes 2 are arranged at the center of the sliding sleeve pressure head 3, and the number of the sliding sleeve upper through holes 2 is four.
The tail end face of the sliding sleeve pressure head 3 is provided with a pressure head shoulder 31, the head of the forced opening spring 4 supports against the pressure head shoulder 31, and the tail of the sliding sleeve sealing barrel 6 is provided with a sliding sleeve plug 10.
An upper joint 1 is arranged between the head of the outer wall of the sliding sleeve sealing cylinder 6 and the head of the outer wall of the sliding sleeve outer cylinder 11.
It should be noted that the sliding sleeve piston 7 and the piston through pipe 5 are an integral structure.
The upper joint 1 is in threaded connection with the sliding sleeve sealing barrel 6 and the sliding sleeve outer barrel 11, the sliding sleeve pressure head 3 is in threaded connection with the piston through pipe 5, the sliding sleeve outer barrel 11 is in threaded connection with the upper joint 1, and outer barrel threads 111 are arranged at the tail of the sliding sleeve outer barrel 11.
In addition, a plurality of sealing O-shaped rings 8 are arranged between the tail part of the outer wall of the sliding sleeve piston 7 and the tail part of the inner wall of the sliding sleeve sealing cylinder 6.
In addition, all parts of the strong-opening oil extraction sliding sleeve except the strong-opening spring 4 are made of 42CrMo, and the Jiang Qi spring 4 is a compression spiral spring made of high-carbon alloy steel.
The working process of the forced-open oil recovery sliding sleeve is explained below.
Firstly, the forced-open type oil production sliding sleeve is assembled.
The piston through pipe 5 enters from the tail part of the sliding sleeve sealing cylinder 6 and moves upwards to a limiting position, and at the moment, the top of the sliding sleeve through pipe 5 is 100mm higher than the top of the sliding sleeve sealing cylinder 6.
The strong spring 4 is installed into the position between the sliding sleeve through pipe 5 and the sliding sleeve sealing barrel from the top until the position of the limiting shoulder 61. At this time, the top of the piston through tube 5 is left at a position of 50mm without a spring, and then the sliding sleeve pressure head 3 is installed to the top of the piston through tube 5. And then, sequentially connecting the upper joint 1 and the sliding sleeve outer cylinder 11 according to the matching threads to finish installation.
During operation, this open oil recovery sliding sleeve by force connects between the pump barrel of tubing pump and the standing valve, places the sucker rod in the hard pump state of bumping, and the sliding sleeve is in the closed condition this moment, pours workover fluid into from the casing pump, observes the oil pipe state and can judge the sliding sleeve leakproofness, and casing pump pressure of annotating is the operating pressure of sliding sleeve promptly.
In the normal production process of the oil pumping well, the sliding sleeve piston 7 does not contact the sliding sleeve pressure head 3, and the forced opening type oil pumping sliding sleeve is always in a forced opening state.
When key parts of the well mouth leak, the well mouth still overflows after the ground pumping unit stops, the polished rod is lowered to a hard pump-bumping state, and a flow passage of the oil pipe can be closed, so that the leaked parts can be repaired or replaced.
It should be noted that if the polished rod is broken in the normal production process, the pumping rod column falls into the well to form a hard collision pump, and the liquid flow channel can be sealed to avoid oil gas leakage at the well mouth. If the condition of the shaft is severe, even if the foreign matter deposits and clamps the forced opening spring, the situation that the piston cannot be pressed down by the hard touch pump is caused, and the normal pumping production is not influenced.
The forced-open type oil extraction sliding sleeve is simple in structure, simple and convenient to operate, capable of being matched with other underground tools for use, capable of aiming at possible failure conditions, not influencing normal production, and high in fault tolerance rate.
Without being limited thereto, any changes or substitutions which are not thought of through creative efforts should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (5)
1. The utility model provides a strong formula of opening oil recovery sliding sleeve, its characterized in that, jiang Qi formula oil recovery sliding sleeve contain a cylindric sliding sleeve urceolus (11), the inside of sliding sleeve urceolus (11) be equipped with a cylindric sliding sleeve sealing cylinder (6), the inner wall middle part of sliding sleeve sealing cylinder (6) be equipped with a spacing circular bead (61) of annular, the inner wall afterbody of sliding sleeve sealing cylinder (6) be equipped with a sealing cylinder feed liquor hole (9), the inside of sliding sleeve sealing cylinder (6) be equipped with a sliding sleeve piston (7), the head of sliding sleeve piston (7) be equipped with a piston siphunculus (5), piston siphunculus (5) go up and cup joint a strong spring (4) that opens, the bottom of Jiang Qi spring (4) support spacing circular bead (61), the head of piston siphunculus (5) be equipped with a sliding sleeve (3), the center of sliding sleeve pressure head (3) be equipped with a plurality of through-hole (2) on the sliding sleeve, the tail terminal surface of sliding sleeve (3) be equipped with a pressure head (31), the pressure head (4736) of pressure head (Jiang Qi) of spring,
the tail part of the sliding sleeve sealing cylinder (6) is provided with a sliding sleeve plug (10),
an upper joint (1) is arranged between the head of the outer wall of the sliding sleeve sealing barrel (6) and the head of the outer wall of the sliding sleeve outer barrel (11).
2. The Jiang Qi type oil recovery sliding sleeve of claim 1,
the sliding sleeve piston (7) and the piston through pipe (5) are of an integral structure.
3. The Jiang Qi type oil recovery sliding sleeve of claim 1,
the upper joint (1) is connected with the sliding sleeve sealing cylinder (6) and the sliding sleeve outer cylinder (11) through threads,
sliding sleeve pressure head (3) with piston siphunculus (5) pass through threaded connection, sliding sleeve urceolus (11) with top connection (1) pass through threaded connection, the afterbody of sliding sleeve urceolus (11) be equipped with urceolus screw thread (111).
4. The Jiang Qi type oil recovery sliding sleeve of claim 1, wherein,
a plurality of sealing O-shaped rings (8) are arranged between the tail part of the outer wall of the sliding sleeve piston (7) and the tail part of the inner wall of the sliding sleeve sealing cylinder (6).
5. The Jiang Qi type oil recovery sliding sleeve of claim 1,
the number of the through holes (2) on the sliding sleeve is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320053299.1U CN218844274U (en) | 2023-01-09 | 2023-01-09 | Open formula oil recovery sliding sleeve by force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320053299.1U CN218844274U (en) | 2023-01-09 | 2023-01-09 | Open formula oil recovery sliding sleeve by force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218844274U true CN218844274U (en) | 2023-04-11 |
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ID=87298570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320053299.1U Active CN218844274U (en) | 2023-01-09 | 2023-01-09 | Open formula oil recovery sliding sleeve by force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218844274U (en) |
-
2023
- 2023-01-09 CN CN202320053299.1U patent/CN218844274U/en active Active
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