CN217841616U

CN217841616U - Ejection type pressure pulse type starting sliding sleeve

Info

Publication number: CN217841616U
Application number: CN202221132126.0U
Authority: CN
Inventors: 刘勇; 常宝平; 王振超; 李永红; 孟伟大; 谷奎乐; 沈正云; 温勇宽
Original assignee: Bazhou Xinlei Petroleum Technology Service Co ltd; Bazhou Dapu Petroleum Technology Service Co ltd
Current assignee: Bazhou Xinlei Petroleum Technology Service Co ltd; Bazhou Dapu Petroleum Technology Service Co ltd
Priority date: 2022-05-12
Filing date: 2022-05-12
Publication date: 2022-11-18
Anticipated expiration: 2032-05-12

Abstract

The utility model discloses a catapulting pressure pulse type starting sliding sleeve, which comprises an outer cylinder, a mandrel, an upper joint and a lower joint; the outside of dabber is located to urceolus coaxial arrangement, urceolus internal surface and dabber surface form the holding chamber, top connection and lower clutch distribute in the both ends in holding chamber, and be connected with urceolus and dabber, dabber and urceolus relative slip, the lower clutch is provided with a plurality of sandblast mouths, the one end interval connection of dabber has the sealing washer, the dabber slidable causes the sealing washer to distribute in the both sides of sandblast mouth or with one side. The utility model discloses a launch formula pressure pulsed and start sliding sleeve can decide opening of sandblast mouth according to temperature and pressure.

Description

Ejection type pressure pulse type starting sliding sleeve

Technical Field

The utility model relates to a sliding sleeve especially relates to a formula of launching pressure pulse formula start-up sliding sleeve.

Background

Toe-end valves can provide a flow path between the tubing and the annulus and are one of the important completion tools. The problems that the coiled tubing of a long horizontal section well is difficult to run and the perforating operation of the coiled tubing cannot be carried out are solved by running a toe end valve along with a casing before well completion.

Disclosure of Invention

The invention aims to: in order to overcome the not enough of existence among the prior art, the utility model provides a formula of launching pressure pulse formula starts sliding sleeve determines the break-make of whole device through pressure.

The technical scheme is as follows: in order to achieve the purpose, the ejection type pressure pulse type starting sliding sleeve comprises an outer barrel, a mandrel, an upper joint and a lower joint; the outside of dabber is located to urceolus coaxial arrangement, urceolus internal surface and dabber surface form the holding chamber, top connection and lower clutch distribute in the both ends in holding chamber, and be connected with urceolus and dabber, dabber and urceolus relative slip, the lower clutch is provided with a plurality of sandblast mouths, the one end interval connection of dabber has the sealing washer, the dabber slidable causes the sealing washer to distribute in the both sides of sandblast mouth or with one side.

Furthermore, the mandrel is provided with an annular bulge, the annular bulge is arranged in the accommodating cavity, the annular bulge is provided with a first channel along the radial direction and a second channel along the axial direction, the first channel and the second channel are communicated in a staggered mode, and a sealing rod is connected in the second channel in a sliding mode.

Furthermore, one end of the sealing rod extending out of the second channel is connected with a fixed rod, the fixed rod and the sealing rod are sleeved with a spring, two ends of the spring are respectively connected with the fixed rod and the annular bulge in a jacking mode, and the fixed rod drives the sealing rod to slide.

Furthermore, a sleeve is arranged at the free end of the fixed rod, a direct current motor set, an unlocking pull rod and a bearing are arranged in an inner cavity of the sleeve, the direct current motor set is fixedly connected with the sleeve, one end of the unlocking pull rod is connected with the output end of the direct current motor set, and the other end of the unlocking pull rod is connected with the bearing; the unlocking pull rod is connected with a steel ball in a jacking mode, a limiting groove is formed in the outer surface of the mandrel, and the steel ball can be connected with or separated from the limiting groove through the unlocking pull rod.

Furthermore, the outer surface of the unlocking pull rod is circumferentially provided with a jacking groove, and the depth of the jacking groove is gradually increased.

Further, the surface of dead lever is provided with the guide way, the spindle connection has the fixing base, the fixing base slides along the guide way.

Further, the sand blasting port is connected with a soluble plug.

Further, the mandrel is connected with the lower joint through a shearing pin.

Has the advantages that: the utility model discloses a launch formula pressure pulsed and start sliding sleeve, when the oil pressure satisfied condition, direct current motor group pulling dead lever and sealing rod slide, and first passageway switches on, and hydraulic oil gets into one side in holding chamber, promotes the dabber and slides for the sealing washer of dabber one end removes to the opposite side of sandblast mouth, and the sandblast mouth switches on, continues to suppress and tears annular space, stratum, forms the passageway between intraductal and the stratum of cover, has realized deciding the break-make of whole device according to the oil pressure.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of portion A of FIG. 1;

FIG. 3 is a schematic view of the FIG. 2 structure when not activated;

FIG. 4 is a schematic view of the start-up configuration of FIG. 2;

FIG. 5 is a schematic view of the structure of portion B of FIG. 4;

fig. 6 is a schematic structural view of the outside of the fixing rod of the present invention;

fig. 7 is a cross-sectional view of C-C in fig. 4.

Detailed Description

The present invention will be further described with reference to fig. 1 to 6.

An ejection type pressure pulse type starting sliding sleeve comprises an outer barrel 1, a mandrel 2, an upper joint 3 and a lower joint 4. The outside of dabber 2 is located to 1 coaxial sleeves of urceolus, 1 internal surface of urceolus forms holding chamber 5 with 2 surfaces of dabber, top connection 3 and lower clutch 4 distribute in the both ends of holding chamber 5, and are connected with urceolus 1 and dabber 2, the junction of top connection 3 and urceolus 1 and the junction of top connection and dabber 2 all are provided with the sealing washer, the junction of lower clutch 4 and urceolus 1 and the junction of lower clutch and dabber 2 all are provided with the sealing washer. The mandrel 2 is provided with an annular bulge 8, the annular bulge 8 is arranged in the accommodating cavity 5, and the accommodating cavity is divided into the left side and the right side by the annular bulge 8. The annular bulge is provided with a sealing ring. The mandrel 2 and the outer cylinder 1 can slide relatively to change the space size of the accommodating cavities 5 at the left side and the right side. A fixing rod 12 is placed in the accommodating cavity on one side of the fixing rod, a sleeve 14 is arranged at one end of the fixing rod 12, a sealing rod 11 is connected to the other end of the fixing rod, a spring 13 is sleeved on the fixing rod and the outer side of the sealing rod, and two ends of the spring 13 are respectively connected to the end face of the sleeve and the end face of the annular bulge in a pressing mode. A direct current motor set 15, an unlocking pull rod 16 and a bearing 17 are arranged in an inner cavity of the sleeve 14, an output end of the direct current motor set 15 is connected with one end of the unlocking pull rod 16, and the other end of the unlocking pull rod 16 is rotatably connected with the bearing. The direct current motor set can drive the unlocking pull rod 16 to rotate. The outer surface of the unlocking pull rod 16 is provided with a top pressing groove 20, the top pressing groove 20 is arranged along the circumferential direction of the unlocking pull rod 16, and the depth of the top pressing groove is gradually deepened. The sleeve is provided with a perforation, and the outer surface of the mandrel is provided with a limiting groove 19. The jacking groove 20 is connected with a steel ball 18 in a jacking mode, and the other side of the steel ball 18 penetrates through the through hole and is jacked into the limiting groove. The annular bulge 8 is provided with a first channel 9 along the radial direction and a second channel 10 along the axial direction, the first channel 9 and the second channel 10 are communicated in a staggered mode, and one end of the sealing rod is connected into the second channel 10 in a sliding mode. The first channel 9 is plugged with a soluble plug 25. When the steel balls 18 are clamped with the limiting grooves 19, the fixing rod and the sealing rod cannot move, the first channel 9 is not communicated, and the accommodating cavity is not communicated with the inner cavity of the mandrel. When the limiting pull rod rotates, the jacking groove 20 rotates to the side with larger depth to be connected with the steel ball in a jacking mode, the steel ball is separated from the limiting groove 19, the limiting rod drives the sealing rod to slide under the action of the spring, the first channel is conducted, the soluble plug 25 is melted by hydraulic oil of the mandrel, and the hydraulic oil enters one side of the containing cavity through the first channel and the second channel. The holding chamber grow on annular arch right side, and the dabber removes under the pressure of hydraulic oil.

One end of the mandrel 2 is connected with a sealing ring 7 at intervals, and the lower joint 4 is provided with a plurality of sand blasting ports 6. When the sealing rod and the fixed rod do not move, the sealing rings arranged at intervals are respectively arranged at two sides of the sand blasting port, and the sand blasting port is connected with a soluble plug 23; when the sealing rod and the fixing rod move, the sealing rings arranged at intervals are respectively arranged on the same side of the sand blasting ports, so that the sand blasting ports are communicated with the inner cavity of the mandrel, the soluble plug is melted by hydraulic oil, the annular space and the stratum are continuously pressed and torn, and a channel between the interior of the mandrel and the stratum is formed. The mandrel 2 is connected to the lower joint 4 by a shear pin 24 which shears off when the mandrel moves. The surface of dead lever 12 is provided with guide way 21, dabber 2 is connected with fixing base 22, fixing base 22 slides along guide way 21. The fixing seat 19 has a limiting effect on the fixing rod, so that the fixing rod can be prevented from moving too far, the accommodating cavity is provided with a limiting switch 26, once the fixing rod is separated from the contact switch, the direct current motor set stops rotating, and the fixing rod also stops sliding. The accommodating cavity is also internally provided with a battery 27, and the outside of the battery is coated with a silica gel pad 28.

A circuit board 29 is also prevented in the accommodating cavity, the circuit board is provided with a temperature control switch, and the circuit does not work when the temperature is lower than a set value; when the temperature is higher than the set value, the switch is conducted, and the battery supplies power to the circuit board. The circuit board is provided with 2 DCDC conversion power supplies which respectively produce +5V power supplies and-5V power supplies.

The temperature is detected after the circuit board starts to work, the temperature value is measured every 5 seconds, and when the temperature is higher than a set value, pressure detection is started. Therefore, the utility model discloses can decide opening of sandblast mouth according to temperature and pressure.

Pressure measurements, measured every 1 second, were made at a pressure value in the program of mV, which is about 10 times the pressure value. The MCU circularly detects 15 pressure values, judges, and detects 15 pressure values again when the difference value between the maximum value and the minimum value in the 15 pressure values is smaller than 55 or larger than 150. The opening of the direct current motor set is also controlled by the circuit board. In the embodiment, the model of the direct current motor set is 16SY/12; the battery model is AA3B0029; the model of the pressure sensor is 211-37-520-04.

The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, a plurality of modifications and decorations can be made, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a formula of launching pressure pulse formula starts sliding sleeve which characterized in that: comprises an outer cylinder (1), a mandrel (2), an upper joint (3) and a lower joint (4); the outside of dabber (2) is located to urceolus (1) coaxial sleeve, urceolus (1) internal surface forms holding chamber (5) with dabber (2) surface, top connection (3) and lower clutch (4) distribute in the both ends in holding chamber (5), and are connected with urceolus (1) and dabber (2), dabber (2) and urceolus (1) relative slip, lower clutch (4) are provided with a plurality of sandblast mouths (6), the one end interval connection of dabber (2) has sealing washer (7), dabber (2) slidable causes sealing washer (7) to distribute in the both sides of sandblast mouth (6) or with one side.

2. The ejection type pressure pulse type starting sliding sleeve as claimed in claim 1, wherein: the mandrel (2) is provided with an annular bulge (8), the annular bulge (8) is arranged in the accommodating cavity (5), the annular bulge (8) is provided with a first channel (9) along the radial direction and a second channel (10) along the axial direction, the first channel (9) and the second channel (10) are communicated in a staggered mode, and a sealing rod (11) is connected in the second channel (10) in a sliding mode.

3. The catapult-type pressure pulse starting sliding sleeve as claimed in claim 2, wherein: one end, extending out of the second channel (10), of the sealing rod (11) is connected with a fixing rod (12), the fixing rod (12) and the sealing rod (11) are sleeved with a spring (13), two ends of the spring (13) are respectively connected with the fixing rod (12) and the annular protrusion (8) in a jacking mode, and the fixing rod (12) drives the sealing rod (11) to slide.

4. The ejection type pressure pulse type starting sliding sleeve as claimed in claim 3, wherein: a sleeve (14) is arranged at the free end of the fixing rod (12), a direct current motor set (15), an unlocking pull rod (16) and a bearing (17) are arranged in the inner cavity of the sleeve (14), the direct current motor set (15) is fixedly connected with the sleeve (14), one end of the unlocking pull rod (16) is connected with the output end of the direct current motor set (15), and the other end of the unlocking pull rod is connected with the bearing (17); the unlocking pull rod (16) is connected with a steel ball (18) in a pressing mode, a limiting groove (19) is formed in the outer surface of the mandrel (2), and the steel ball (18) can be connected with or separated from the limiting groove (19) through the unlocking pull rod (16).

5. The catapult-type pressure pulse starting sliding sleeve as claimed in claim 4, wherein: the outer surface of the unlocking pull rod (16) is provided with a jacking groove (20) along the circumferential direction, and the depth of the jacking groove (20) is gradually increased.

6. The catapult-type pressure pulse starting sliding sleeve as claimed in claim 4, wherein: the surface of dead lever (12) is provided with guide way (21), dabber (2) are connected with fixing base (22), fixing base (22) slide along guide way (21).

7. The ejection type pressure pulse type starting sliding sleeve as claimed in claim 1, wherein: the sand blasting port (6) is connected with a soluble plug (23).

8. The ejection type pressure pulse type starting sliding sleeve as claimed in claim 1, wherein: the mandrel (2) is connected with the lower joint (4) through a shearing pin (24).