CN220815609U - Hydraulic sand blasting perforation is with school dark device - Google Patents
Hydraulic sand blasting perforation is with school dark device Download PDFInfo
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- CN220815609U CN220815609U CN202322795312.3U CN202322795312U CN220815609U CN 220815609 U CN220815609 U CN 220815609U CN 202322795312 U CN202322795312 U CN 202322795312U CN 220815609 U CN220815609 U CN 220815609U
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- depth
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- depth correction
- perforating gun
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- 238000005488 sandblasting Methods 0.000 title claims abstract description 15
- 238000012937 correction Methods 0.000 claims abstract description 45
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000005270 abrasive blasting Methods 0.000 claims 2
- 210000002445 nipple Anatomy 0.000 abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 7
- 239000012530 fluid Substances 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Abstract
The utility model relates to the field of logging depth correction for underground operation of oil and water wells, in particular to a depth correction device for hydraulic sand blasting perforation. The technical proposal is as follows: the upper part of the blowout preventer is provided with a self-seal, the upper end of the oil pipe is provided with a high-pressure tee joint, the upper end of the high-pressure tee joint is provided with a lubricator, the upper side end of the high-pressure tee joint is connected with a pump truck through a high-pressure pipeline, one side of the pump truck is provided with a liquid supply tank, and the liquid supply tank is connected with a wellhead four-way joint through an outlet pipeline; one end of the depth correction cable is connected to the logging truck along the lubricator, the other end of the depth correction cable is downwards arranged underground along the oil pipe and connected to the depth correction instrument, and the depth correction instrument is located below the depth correction nipple. The beneficial effects are that: by adjusting the perforating pipe column and the well condition to the formal perforating state during depth correction, the influence of various factors during perforating is simulated, measured data are more objective and accurate, and the accuracy of perforating operation is further improved.
Description
Technical Field
The utility model relates to the field of logging depth correction for underground operation of oil and water wells, in particular to a depth correction device for hydraulic sand blasting perforation.
Background
With the continuous deep exploration and development of oil and gas fields, the thickness of the shot horizon in the thin layer perforation field is thinner and thinner, the requirement on deep hole precision is higher and higher, meanwhile, the phenomenon of shot deflection and dislocation is also more and more serious, and new requirements are put forward for the depth correction procedure before perforation.
The hydraulic sand blasting perforation technology is that sand carrying liquid mixed with quartz sand in certain concentration is pressurized by a fracturing truck, and is conveyed to the bottom of a well through an oil pipe, and jet flow is high-speed from the nozzle position of a perforating gun to puncture a casing pipe and a stratum near the well to form holes with certain depth and diameter. The whole construction process comprises the working procedures of earlier-stage shaft preparation, perforating pipe column setting, depth correction, pipe column depth adjustment, well flushing before construction, ball throwing, trial injection, sand blasting perforation construction, well flushing, pipe column lifting and the like.
Before hydraulic sand blasting perforation construction, a perforating pipe column is in a natural extension state, and natural Gamma (GR) +magnetic positioning (CCL) combined well logging and depth correction are carried out according to the process requirement so as to determine the position of the upper boundary of a depth correction nipple, and then the positions of a perforating gun and a gun hole are adjusted; in the formal perforation construction process, the perforating string is in an open pressure-bearing state (namely, the pressure is released after the pump is stopped, and the pressure is not stabilized), and the perforating string in the open pressure-bearing state inevitably generates axial deformation, so that the axial displacement of the perforating gun and the deviation of perforation precision are caused.
Although a specific calculation method of dead weight and bearing elongation of an oil pipe in sand carrying fluid is specifically mentioned in the standard SY/T5587.10-93 hydraulic sand blasting perforation operation Specification 【5】 of conventional oil-water well workover operation, the formula is only suitable for a perforating string in a closed bearing state (a state that the pressure is not released after stopping a pump and forms a pressure stabilizing state), and how to effectively determine the influence of an open bearing state on axial deformation of the pipe is a key for improving perforation precision and guaranteeing perforation quality and later development effect.
Disclosure of utility model
The utility model aims at overcoming the defects in the prior art, and provides a depth correcting device for hydraulic sand blasting perforation, which is used for adjusting a perforating pipe column and well conditions to a formal perforating state during depth correction, simulating the influence of various factors during perforation, ensuring more objective and accurate measured data and further improving the accuracy of perforation operation.
The utility model relates to a depth correcting device for hydraulic sand blasting perforation, which has the technical scheme that: the well head four-way system comprises a high-pressure tee joint (5), a lubricator (6), a depth correction cable (7), a logging truck (8), a high-pressure pipeline (9), a pump truck (10), a liquid supply tank (11), an outlet pipeline (12), a depth correction pup joint (15), a perforating gun (16) and a depth correction instrument (18), wherein a self-sealing part (3) is arranged above the blowout preventer (2), the high-pressure tee joint (5) is arranged at the upper end of an oil pipe (14), the lubricator (6) is arranged at the upper end of the high-pressure tee joint (5), the upper end of the high-pressure tee joint (5) is connected with the pump truck (10) through the high-pressure pipeline (9), one side of the pump truck (10) is provided with the liquid supply tank (11), and the liquid supply tank (11) is connected with the well head four-way system (1) through the outlet pipeline (12); one end of a depth correcting cable (7) is connected to a logging truck (8) along a lubricator (6), the other end of the depth correcting cable (7) is downwards led into the pit along an oil pipe (14) and is connected to a depth correcting instrument (18), and the depth correcting instrument (18) is located below a depth correcting pup joint (15).
Preferably, the depth gauge (18) comprises a cable quick connector (18.1), a magnetic positioning instrument (18.2), a natural gamma instrument (18.3), a detector (18.4), a first guide head (18.5) and a depth gauge main body (18.6), wherein the cable quick connector (18.1) is arranged at the upper end of the depth gauge main body (18.6), the first guide head (18.5) is arranged at the lower end of the depth gauge main body (18.6), and the magnetic positioning instrument (18.2), the natural gamma instrument (18.3) and the detector (18.4) are arranged in the middle of the depth gauge main body (18.6).
Preferably, the perforating gun (16) comprises a perforating gun main body (16.1), a ball seat (16.2), a second guide head (16.3), a nozzle (16.4), a coupling (16.5) and a spraying channel (16.6), wherein the coupling (16.5) is arranged at the upper end of the perforating gun main body (16.1), the second guide head (16.3) is connected with the lower end of the perforating gun main body, the ball seat (16.2) is arranged in the inner cavity of the second guide head (16.3), the spraying channel (16.6) is arranged in the inner cavity of the perforating gun main body (16.1), and a plurality of nozzles (16.4) are distributed on the outer wall of the perforating gun main body (16.1).
Preferably, the second guide head (16.3) is connected to the lower end of the perforating gun main body (16.1) through threads, and threads (16.7) are arranged on the inner side of the coupling (16.5).
Preferably, a guide wheel (19) is mounted on one side of the upper end of the lubricator (6), and the depth correction cable (7) moves along the guide wheel (19).
Preferably, the depth correction cable (7) is an armored cable.
The beneficial effects of the utility model are as follows: compared with the traditional well logging depth correction, the depth correction device fully considers the objective reality that the well conditions and working conditions of two working procedures of depth correction and perforation are different, and by performing depth correction preparation, the pipe column is adjusted to a formal perforation state by installing a high-pressure tee joint and matching with the use of a pump truck and sand-carrying fluid, and the depth correction operation under the state is completed; the utility model can effectively avoid the difference of axial deformation of the tubular column under different well conditions and working conditions, ensures the accuracy of perforation and provides powerful guarantee for later development and production.
Drawings
FIG. 1 is a schematic representation of a logging depth-finding surface preparation of the present utility model;
FIG. 2 is a schematic diagram of a downhole preparation of a well logging tool of the present utility model;
FIG. 3 is a schematic diagram of a depth gauge;
FIG. 4 is a schematic structural view of a perforating gun;
In the upper graph: wellhead four-way 1, blowout preventer 2, self-sealing 3, elevator 4, high-pressure tee 5, lubricator 6, depth correction cable 7, logging truck 8, high-pressure pipeline 9, pump truck 10, fluid supply tank 11, outlet pipeline 12, casing 13, oil pipe 14, depth correction nipple 15, perforating gun 16, artificial well bottom 17, depth correction instrument 18, guide wheel 19, cable quick connector 18.1, magnetic locator 18.2, natural gamma instrument 18.3, detector 18.4, first guide head 18.5, depth correction instrument main body 18.6, perforating gun main body 16.1, ball seat 16.2, second guide head 16.3, nozzle 16.4, 16.5, jet channel 16.6, screw thread 16.7.
Detailed Description
The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.
1, Referring to fig. 1-4, the depth calibrating device for hydraulic sand blasting perforation comprises a high-pressure tee joint 5, a lubricator 6, a depth calibrating cable 7, a logging truck 8, a high-pressure pipeline 9, a pump truck 10, a liquid supply tank 11, an outlet pipeline 12, a depth calibrating nipple 15, a perforating gun 16 and a depth calibrating instrument 18, wherein a self-sealing 3 is arranged above the blowout preventer 2, the high-pressure tee joint 5 is arranged at the upper end of an oil pipe 14, the lubricator 6 is arranged at the upper end of the high-pressure tee joint 5, the upper end of the high-pressure tee joint 5 is connected with the pump truck 10 through the high-pressure pipeline 9, the liquid supply tank 11 is arranged at one side of the pump truck 10, and the liquid supply tank 11 is connected with a wellhead four-way joint 1 through the outlet pipeline 12; one end of the depth correction cable 7 is connected to the logging truck 8 along the lubricator 6, the other end of the depth correction cable 7 is lowered downhole along the tubing 14 and connected to the depth correction gauge 18, and the depth correction gauge 18 is located below the depth correction nipple 15.
Referring to fig. 3, the depth corrector 18 according to the present utility model includes a cable quick connector 18.1, a magnetic positioning device 18.2, a natural gamma device 18.3, a detector 18.4, a first guiding head 18.5 and a depth corrector main body 18.6, wherein the cable quick connector 18.1 is disposed at the upper end of the depth corrector main body 18.6, the first guiding head 18.5 is disposed at the lower end of the depth corrector main body 18.6, and the magnetic positioning device 18.2, the natural gamma device 18.3 and the detector 18.4 are installed in the middle of the depth corrector main body 18.6.
Referring to fig. 4, the perforating gun 16 of the present utility model comprises a perforating gun main body 16.1, a ball seat 16.2, a second guide head 16.3, a nozzle 16.4, a coupling 16.5 and a spraying channel 16.6, wherein the coupling 16.5 is arranged at the upper end of the perforating gun main body 16.1, the second guide head 16.3 is connected at the lower end, the ball seat 16.2 is arranged in the inner cavity of the second guide head 16.3, the spraying channel 16.6 is arranged in the inner cavity of the perforating gun main body 16.1, and a plurality of nozzles 16.4 are distributed on the outer wall of the perforating gun main body 16.1.
The second guide head 16.3 is connected to the lower end of the perforating gun main body 16.1 through threads, and threads 16.7 are arranged on the inner side of the coupling 16.5.
The guide wheel 19 is installed at one side of the upper end of the lubricator 6, and the depth correction cable 7 moves along the guide wheel 19, so that the depth correction cable 7 can be moved more easily.
The depth correcting cable 7 adopts an armored cable, so that the service life of the cable is prolonged.
In the use of the present utility model,
Firstly, according to the construction design, a pipe column is lowered to a preset position underground according to the sequence of connection combination of a perforating gun 16, an oil pipe 14 and a depth correcting short joint 15, well head preparation of a well head four-way joint 1, a blowout preventer 2 and a self-sealing 3 on the ground is completed, the pipe column combination is hung on the well head through an elevator 4, and a high-pressure tee joint 5, a blowout preventer 6, a depth correcting cable 7 and other preparation works before depth correction are sequentially installed above an oil pipe coupling;
The second step, connect well head and pump truck 10 through high-pressure tee 5 and high-pressure pipeline 9, connect well head cross 1 and liquid supply tank 11 through the outlet line 12, then connect liquid supply tank 11 and pump truck 10 through the liquid supply pipeline of the pump truck 10 oneself, finish the whole ground to prepare;
Thirdly, the depth gauge 18 is lowered into the oil pipe 14 through the depth gauge cable 7 and lowered to about 10m below the depth gauge nipple 15, and the downhole preparation is completed;
And fourthly, starting the pump truck 10 according to the construction design, adjusting the discharge capacity to the pressure when the pump pressure is the perforation, and simulating the well condition and working condition when the regular perforation is carried out. On the premise of ensuring the stable state, the logging truck 8 lifts the depth gauge 18 through the depth gauge cable 7, the measurement of the position of the depth gauge nipple 15 is completed in the lifting process, and the depth gauge 18 is lifted out of the wellhead after the completion.
And fifthly, reading the upper boundary position of the depth correction nipple 15 is completed by comparing the display of the position of the depth correction nipple 15 with a natural gamma and magnetic positioning combined logging curve, and the depth correction process is completed.
By adjusting the perforating pipe column and the well condition to the formal perforating state during depth correction, the influence of various factors during perforating is simulated, measured data are more objective and accurate, and the accuracy of perforating operation is further improved.
And in addition, when the perforating string is in a downhole natural extension state, the depth corrector is lowered below the depth corrector pup joint, then the pressure and the discharge capacity (for example, 30MPa and 800L/min) of the pump truck are adjusted to a formal perforating state as much as possible by utilizing sand carrying fluid, so that the string is in an open pressure-bearing state, the depth corrector is lifted and the position of the upper boundary of the depth corrector pup joint is measured on the premise of ensuring the stability of the state, and the depth corrector is completed.
The utility model discards the traditional wellhead preparation, but installs a self-sealing on the blowout preventer, and the self-sealing has the function of choking sand-carrying fluid returned from an annulus (an annular space between an oil pipe and a casing pipe) to a wellhead four-way joint and returning the sand-carrying fluid to a fluid supply tank. The oil pipe is suspended at a wellhead through the elevator, a high-pressure tee joint is arranged above an oil pipe coupling, the pressure resistance of the tee joint is required to be more than 35MPa, and the performance requirement of a pump truck can be met by connecting the tee joint with a high-pressure manifold to the pump truck. The lubricator of logging team is connected to the tee bend of high pressure more, and it can satisfy the requirement of pressure-bearing when the school is dark equally to require.
The above description is of the preferred embodiments of the present utility model, and any person skilled in the art may modify the present utility model or make modifications to the present utility model with the technical solutions described above. Therefore, any simple modification or equivalent made according to the technical solution of the present utility model falls within the scope of the protection claimed by the present utility model.
Claims (6)
1. A hydraulic sand blasting perforation is with school dark device, characterized by: the well head four-way system comprises a high-pressure tee joint (5), a lubricator (6), a depth correction cable (7), a logging truck (8), a high-pressure pipeline (9), a pump truck (10), a liquid supply tank (11), an outlet pipeline (12), a depth correction pup joint (15), a perforating gun (16) and a depth correction instrument (18), wherein a self-sealing part (3) is arranged above the blowout preventer (2), the high-pressure tee joint (5) is arranged at the upper end of an oil pipe (14), the lubricator (6) is arranged at the upper end of the high-pressure tee joint (5), the upper end of the high-pressure tee joint (5) is connected with the pump truck (10) through the high-pressure pipeline (9), one side of the pump truck (10) is provided with the liquid supply tank (11), and the liquid supply tank (11) is connected with the well head four-way system (1) through the outlet pipeline (12); one end of a depth correcting cable (7) is connected to a logging truck (8) along a lubricator (6), the other end of the depth correcting cable (7) is downwards led into the pit along an oil pipe (14) and is connected to a depth correcting instrument (18), and the depth correcting instrument (18) is located below a depth correcting pup joint (15).
2. The depth correcting device for hydraulic sand blasting perforation according to claim 1, wherein: the depth corrector (18) comprises a cable quick connector (18.1), a magnetic positioning instrument (18.2), a natural gamma instrument (18.3), a detector (18.4), a first guide head (18.5) and a depth corrector main body (18.6), wherein the cable quick connector (18.1) is arranged at the upper end of the depth corrector main body (18.6), the first guide head (18.5) is arranged at the lower end of the depth corrector main body (18.6), and the magnetic positioning instrument (18.2), the natural gamma instrument (18.3) and the detector (18.4) are arranged in the middle of the depth corrector main body (18.6).
3. The depth correction device for hydraulic sand blasting perforation according to claim 2, wherein: perforating gun (16) are including perforating gun main part (16.1), ball seat (16.2), direction first two (16.3), nozzle (16.4), coupling (16.5), injection channel (16.6), the upper end of perforating gun main part (16.1) is equipped with coupling (16.5), and direction first two (16.3) are connected to the lower extreme, and the inner chamber of direction first two (16.3) is equipped with ball seat (16.2), is equipped with injection channel (16.6) in the inner chamber of perforating gun main part (16.1), and it has a plurality of nozzles (16.4) to distribute on the outer wall of perforating gun main part (16.1).
4. A depth corrector for hydro-abrasive blasting perforations according to claim 3, wherein: the second guide head (16.3) is connected to the lower end of the perforating gun main body (16.1) through threads, and threads (16.7) are arranged on the inner side of the coupling (16.5).
5. The depth correcting device for hydraulic sand blasting perforation according to claim 1, wherein: a guide wheel (19) is arranged on one side of the upper end of the lubricator (6), and the depth correcting cable (7) moves along the guide wheel (19).
6. A depth corrector for hydro-abrasive blasting perforations according to claim 3, wherein: the depth correcting cable (7) is an armored cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322795312.3U CN220815609U (en) | 2023-10-18 | 2023-10-18 | Hydraulic sand blasting perforation is with school dark device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322795312.3U CN220815609U (en) | 2023-10-18 | 2023-10-18 | Hydraulic sand blasting perforation is with school dark device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220815609U true CN220815609U (en) | 2024-04-19 |
Family
ID=90671284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322795312.3U Active CN220815609U (en) | 2023-10-18 | 2023-10-18 | Hydraulic sand blasting perforation is with school dark device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220815609U (en) |
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2023
- 2023-10-18 CN CN202322795312.3U patent/CN220815609U/en active Active
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