High-temperature deep well separator
By using reinforcement and locking mechanisms in high-temperature deep well separators and combined with the design of rubber air cushions, the seal failure problem caused by changes in sealing material density is solved, the second round of steam injection and production stability of heavy oil wells is improved, and the stability of the heavy oil wells is reduced. Well repair costs and mining cycles.
Patent Information
- Application Number
- CN202421293788.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-06-07
AI Technical Summary
The density of sealing material changes after high temperature and cooling cycles of high temperature and cooling, resulting in seal failure, affecting the second round of steam injection and production of heavy oil wells, and increasing the well repair cost and mining cycle.
Using reinforcement mechanism and locking mechanism, the cannula formed by a combination of convex tube, fixing block, slide chute, inclined block, arc plate, slider and micro electro-hydraulic rods to enhance the fixation of the packer and use rubber Air cushion seals to ensure sealing.
It improves the connection fixation and sealing performance of the packer, extends the sealing life, and reduces the well repair frequency and mining costs.
Smart Images
Figure CN222362981U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of separators, in particular to a high-temperature deep well separator. Background Art
[0002] With the continuous deepening of oil and gas exploration and development technology, the exploitation of heavy oil wells has become an important means to increase oil and gas production. The steam injection exploitation technology of heavy oil wells has been widely used. However, due to the sealing problem of the packer, only two rounds of steam injection exploitation can be achieved at present. The packer will fail to seal after two high and low temperature cycles. After the packer fails to seal, the formation is relatively loose after steam injection. Gravel will be produced in the formation during the later production, which will damage the production string. The upper casing will also accelerate corrosion due to leakage during steam injection. After the packer fails to seal, it is necessary to replace the downhole sand control tool string through well repair operations to maintain production. The cost of each well repair is high, and the mining cycle after well repair is short, resulting in increased mining costs. Technical problems to be solved: Heavy oil well exploitation requires the injection of steam at about 350°C into the formation to reduce the viscosity of the heavy oil in the formation and achieve better fluidity, thereby realizing the exploitation of the heavy oil. However, the well must be sealed after each steam injection. In order to avoid heat loss and protect the upper casing, the seal of the packer plays a vital role. At present, the high-temperature thermal recovery packer has a good seal during the first round of production, but there will be leakage during the second round of injection, and production can be barely carried out. During production, due to leakage of the packer seal, the formation may be out of the second round of production.
[0003] The current packer has a large temperature change after steam injection and production. After the sealing body between the packer and the casing is heated and cooled, the sealing material is affected by the temperature. When steam is injected again, the sealing material is heated and cooled, and the density of the sealing material changes. If the packer cannot be set again, it is easy to cause the packer to loosen and affect the seal. For this reason, we propose a high-temperature deep well separator. Utility Model Content
[0004] In view of the problems in the prior art, the utility model provides a high-temperature deep well separator.
[0005] The technical solution adopted by the utility model to solve its technical problems is a high-temperature deep well separator, comprising a packer body and a plug tube, a reinforcement mechanism is plugged in and connected to the tube wall of the plug tube, and the reinforcement mechanism is composed of a convex tube, a fixed block, a slide groove, an inclined block, an arc plate and a slider combination, a convex tube is plugged in and connected to the tube wall of the plug tube, a fixed block is welded to the tube wall of the convex tube, a group of the fixed blocks are provided with a slide groove at the block wall, a slider is slidably connected to the inner wall of the slide groove, an arc plate is welded at the block bottom of the slider, and the arc plate is located in the convex tube, and an inclined block is welded to the other end of the arc plate.
[0006] By adopting the above technical scheme, when increasing the fixation of the main body of the packer, since the reinforcing mechanism is plugged into the wall of the insert tube, the reinforcing mechanism is composed of a convex tube, a fixed block, a slide groove, an inclined block, an arc plate and a slider. After the personnel insert the insert tube into the convex tube, since a group of symmetrical fixed blocks are welded on the wall of the convex tube, and a slide groove is provided on the wall of the fixed block, when the insert tube is inserted into the convex tube, the main body of the packer is inserted between the inclined blocks, so that the inclined blocks are opened, and the slider moves in the slide groove, so that the inclined blocks expand and squeeze the inside of the borehole, thereby increasing the connection and fixation of the packer.
[0007] Specifically, it also includes a locking mechanism, and the locking mechanism is installed on the tube wall of the insertion tube.
[0008] By adopting the above technical solution, the convex tube can be conveniently locked and discharged through the locking mechanism.
[0009] Specifically, the locking mechanism is composed of a vertical plate, a locking plate, a micro-electric hydraulic rod and a latch rod combination. Two groups of symmetrical vertical plates are installed on the tube wall of the insert tube by bolts, a group of symmetrical latch rods are welded on the plate wall of the locking plate, and the latch rods pass through the vertical plates, a group of symmetrical micro-electric hydraulic rods are installed on the tube wall of the insert tube, and the output ends of the micro-electric hydraulic rods are interconnected with the plate wall of the locking plate.
[0010] By adopting the above technical scheme, when the convex tube is discharged, since a locking mechanism is installed at the tube wall of the insert tube, the locking mechanism is composed of a vertical plate, a locking plate, a micro-electric hydraulic rod and a latch rod combination. After the insert tube passes through the convex tube, since two groups of symmetrical vertical plates are installed at the tube wall of the insert tube by bolts, the locking plate is pushed by the micro-electric hydraulic rod, so that the latch rod rotates between the vertical plates, thereby lifting one end of the locking plate. When the insert tube is pulled out, the convex tube is pushed by the locking plate to realize the discharge of the convex tube.
[0011] Specifically, one end of the packer body is connected and installed with a cannula.
[0012] By adopting the above technical solution, it is convenient to fix the cannula.
[0013] Specifically, a rubber air cushion is installed on the outer wall of the packer body.
[0014] By adopting the above technical solution, the drilled hole can be squeezed and sealed by the rubber air cushion.
[0015] Beneficial effects of the utility model:
[0016] (1) The high-temperature deep well separator described in the utility model has a reinforcing mechanism connected to the wall of the insert tube when increasing the fixation of the main body of the packer. The reinforcing mechanism is composed of a convex tube, a fixed block, a slide groove, an inclined block, an arc plate and a slider. After the personnel insert the insert tube into the convex tube, a group of symmetrical fixed blocks are welded on the wall of the convex tube, and a slide groove is opened on the wall of the fixed block. When the insert tube is inserted into the convex tube, the main body of the packer is inserted between the inclined blocks, so that the inclined blocks are opened and the slider moves in the slide groove, so that the inclined blocks expand and squeeze the inside of the borehole, thereby increasing the connection and fixation of the packer.
[0017] (2) The high-temperature deep well separator described in the utility model has a locking mechanism installed on the wall of the insert pipe when the convex pipe is discharged. The locking mechanism is composed of a vertical plate, a locking plate, a micro-electric hydraulic rod and a latch rod. After the insert pipe passes through the convex pipe, two sets of symmetrical vertical plates are installed on the wall of the insert pipe by bolts. The locking plate is pushed by the micro-electric hydraulic rod, so that the latch rod rotates between the vertical plates, thereby lifting one end of the locking plate. When the insert pipe is pulled out, the convex pipe is pushed by the locking plate to realize the discharge of the convex pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0019] Figure 1 It is the main figure of the utility model;
[0020] Figure 2 This is a schematic diagram of the reinforcement mechanism structure of the utility model;
[0021] Figure 3 This is a schematic diagram of the locking mechanism structure of the utility model;
[0022] In the figure: 1. Packer body; 2. Reinforcement mechanism; 201. Convex tube; 202. Fixing block; 203. Slide groove; 204. Inclined block; 205. Arc plate; 206. Slider; 3. Insert tube; 4. Rubber air cushion; 5. Locking mechanism; 501. Vertical plate; 502. Locking plate; 503. Micro electric hydraulic rod; 504. Latch rod. DETAILED DESCRIPTION
[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0024] As an embodiment of the present utility model, Figure 1 , Figure 2 and Figure 3As shown, a high-temperature deep well separator described in the utility model includes a packer body 1 and a plug tube 3, a reinforcement mechanism is plugged in at the tube wall of the plug tube 3, and the reinforcement mechanism 2 is composed of a convex tube 201, a fixed block 202, a slide 203, an inclined block 204, an arc plate 205 and a slider 206. The tube wall of the plug tube 3 is plugged in with a convex tube 201, and the tube wall of the convex tube 201 is connected and welded with a fixed block 202. A group of the fixed blocks 202 are provided with a slide groove 203 at the block wall, and a slider 206 is slidably connected at the inner wall of the groove of the slide groove 203. An arc plate 205 is welded at the block bottom of the slider 206, and the arc plate 205 is located in the convex tube 201, and the other end of the arc plate 205 is welded with an inclined block 204.
[0025] When in use, since the reinforcing mechanism is plugged into the pipe wall of the insert tube 3, the reinforcing mechanism 2 is composed of a convex tube 201, a fixed block 202, a slide groove 203, an inclined block 204, an arc plate 205 and a slider 206. After the personnel insert the insert tube 3 into the convex tube 201, since a group of symmetrical fixed blocks 202 are welded on the pipe wall of the convex tube 201, and a slide groove 203 is provided on the block wall of the fixed block 202, when the insert tube 3 is inserted into the convex tube 201, the inclined block 204 is inserted into the inclined block 204, so that the inclined block 204 is opened, and the slider 206 moves in the slide groove 203, so that the inclined block 204 expands and squeezes the borehole, thereby increasing the connection and fixation of the packer.
[0026] like Figure 1 As shown, a locking mechanism 5 is also included, and the locking mechanism 5 is installed on the tube wall of the insertion tube 3.
[0027] When in use, the locking mechanism 5 is used to conveniently lock and discharge the convex tube 201 .
[0028] like Figure 1 and Figure 3 As shown, the locking mechanism 5 is composed of a vertical plate 501, a locking plate 502, a micro-electric hydraulic rod 503 and a latch rod 504. Two groups of symmetrical vertical plates 501 are installed on the tube wall of the insert tube 3 by bolts, a group of symmetrical latch rods 504 are welded on the plate wall of the locking plate 502, and the latch rods 504 pass through the vertical plate 501. A group of symmetrical micro-electric hydraulic rods 503 are installed on the tube wall of the insert tube 3, and the output ends of the micro-electric hydraulic rods 503 are interconnected with the plate wall of the locking plate 502.
[0029] When in use, since a locking mechanism 5 is installed on the tube wall of the insert tube 3, the locking mechanism 5 is composed of a vertical plate 501, a locking plate 502, a micro-electric hydraulic rod 503 and a latch rod 504. After the insert tube 3 passes through the convex tube 201, since two groups of symmetrical vertical plates 501 are installed on the tube wall of the insert tube 3 by bolts, the locking plate 502 is pushed by the micro-electric hydraulic rod 503, so that the latch rod 504 rotates between the vertical plates 501, thereby lifting one end of the locking plate 502. When the insert tube 3 is pulled out, the convex tube 201 is pushed by the locking plate 502 to realize the discharge of the convex tube 201.
[0030] like Figure 1 As shown, one end of the packer body 1 is connected to and installed with a cannula 3.
[0031] When in use, it is convenient to fix the cannula 3.
[0032] like Figure 1 As shown, a rubber air cushion 4 is installed on the outer wall of the packer body 1.
[0033] When in use, the drilled hole can be squeezed and sealed by the rubber air cushion 4 .
[0034] When the utility model is used, when the packer body 1 is fixed, since the pipe wall of the insert pipe 3 is plugged and connected with a reinforcement mechanism, the reinforcement mechanism 2 is composed of a convex pipe 201, a fixed block 202, a slide groove 203, an inclined block 204, an arc plate 205 and a slider 206. After the personnel insert the insert pipe 3 into the convex pipe 201, since a group of symmetrical fixed blocks 202 are welded on the pipe wall of the convex pipe 201, and a slide groove 203 is opened on the block wall of the fixed block 202, when the insert pipe 3 is inserted into the convex pipe 201, the packer body 1 is inserted between the inclined blocks 204, so that the inclined blocks 204 are opened, and the slider 206 moves in the slide groove 203, thereby tilting. Block 204 expands and squeezes the inside of the borehole to increase the connection and fixation of the packer. When the convex pipe 201 is discharged, a locking mechanism 5 is installed at the pipe wall of the insert pipe 3, and the locking mechanism 5 is composed of a vertical plate 501, a locking plate 502, a micro-electric hydraulic rod 503 and a latch rod 504. When the insert pipe 3 passes through the convex pipe 201, two groups of symmetrical vertical plates 501 are installed at the pipe wall of the insert pipe 3 by bolts. The locking plate 502 is pushed by the micro-electric hydraulic rod 503, so that the latch rod 504 rotates between the vertical plates 501, thereby lifting one end of the locking plate 502. When the insert pipe 3 is pulled out, the convex pipe 201 is pushed by the locking plate 502 to realize the discharge of the convex pipe 201.
[0035] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.
Claims
1. A high temperature deep well separator, characterized in that: The invention comprises a packer body (1) and a plug tube (3), wherein a reinforcing mechanism is plugged in and connected to the tube wall of the plug tube (3), and the reinforcing mechanism (2) is composed of a convex tube (201), a fixed block (202), a slide groove (203), an inclined block (204), an arc plate (205) and a slider (206). The tube wall of the plug tube (3) is plugged in and connected to the convex tube (201), and the tube wall of the convex tube (201) is connected and welded with a fixed block (202), a slide groove (203) is provided on the block wall of a group of the fixed blocks (202), and a slider (206) is slidably connected to the inner wall of the groove of the slide groove (203), and a circular plate (205) is welded at the block bottom of the slider (206), and the circular plate (205) is located in the convex tube (201), and the other end of the circular plate (205) is welded with an inclined block (204).
2. A high temperature deep well separator according to claim 1, characterized in that: It also comprises a locking mechanism (5), and the locking mechanism (5) is installed on the tube wall of the insertion tube (3).
3. A high temperature deep well separator according to claim 2, characterized in that: The locking mechanism (5) is composed of a vertical plate (501), a locking plate (502), a micro-electric hydraulic rod (503) and a latch rod (504); two groups of symmetrical vertical plates (501) are installed on the tube wall of the insertion tube (3) by bolts; a group of symmetrical latch rods (504) are welded on the plate wall of the locking plate (502), and the latch rods (504) penetrate the vertical plates (501); a group of symmetrical micro-electric hydraulic rods (503) are installed on the tube wall of the insertion tube (3), and the output ends of the micro-electric hydraulic rods (503) are connected to the plate wall of the locking plate (502).
4. A high temperature deep well separator according to claim 1, characterized in that: One end of the packer body (1) is connected to and installed with a cannula (3).
5. A high temperature deep well separator according to claim 1, characterized in that: A rubber air cushion (4) is installed on the outer wall of the packer body (1).