CN201330579Y

CN201330579Y - Mechanical type bridging plug

Info

Publication number: CN201330579Y
Application number: CNU2009200928683U
Authority: CN
Inventors: 藏亚彪; 邓艳波; 王世局
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-01-15
Filing date: 2009-01-15
Publication date: 2009-10-21
Anticipated expiration: 2019-01-15

Abstract

The utility model discloses a mechanical type bridging plug, comprising an upper contact sleeved on a central tube, an abruption joint, a salvaging joint, a O-shaped rubber ring, a decapsulating shear pin, a jacket, a glue cylinder head, a long glue cylinder, a short glue cylinder, a caulking ring, an outer tube, a connecting sleeve, a fastening screw, a cone, a slips, a leaf spring, a centralizer seat, a brake pad, an arc spring, a lock ring, a centralizer pressure cap, a sitting preventing lock ring, a sleeve and a lower joint, the mechanical type bridging plug is in the setting in the rotary downing way, eliminating the pump truck in the work in the oil field, the mechanical type bridging plug can be combined with different tool, which can meet the oil production process of upper-sealing and lower-extracting, or lower-sealing and upper-extracting, or middle-sealing and upper-extracting and lower-extracting, the mechanical type bridging plug has high sealing pressure with the upper pressure of 70 Mp and the lower pressure of 35 Mp, the slips is anchored, the salvaging is easy because the shear pin way together with the locking is adopted.

Description

The mechanical type bridging plug

Technical field

The utility model relates to a kind of mechanical type bridging plug that is used for oil, gas field pressure break, water blockoff, formation testing.

Background technology

Existing bridging plug is to adopt the mode of directly putting setting, and need use pump truck when oil field operation, and only can satisfy the packing of a position, and sealing load is low, and slips anchoring is unreliable, is difficult for salvaging.

Summary of the invention

The purpose of this utility model is in order to solve the shortcoming that above-mentioned existing bridging plug exists, and a kind of mechanical type bridging plug is provided, and the mode that adopts rotation to transfer when this mechanical type bridging plug sets can be saved pump truck when oil field operation; With different tool combinations, can satisfy to seal up and adopt down, or adopt under the envelope, or adopt upper and lower oil production technology in the middle of the envelope; The sealing load height, on press 70MPa, press down 35MPa; Slips anchoring is firm; Salvage and adopt the shear pin mode to add lock dog, salvage easily.

The utility model is by top connection, break joint, fishing joint, O shape cushion rubber, the deblocking shear pin, overcoat, the packing element head, long packing element type, short rubber cylinder, spacer ring, outer tube, adapter sleeve, trip bolt, cone, slips, leaf spring, the centralizer body seat, brake pad, semielliptic spring, lock ring, the centralizer body pressure cap, the anti-lock ring of sitting, central tube, sleeve pipe and lower contact constitute, the central tube upper end connects top connection by breaking joint, the two ends of breaking joint are located in top connection and the central tube, break between the outer wall of joint and the central tube inwall and be provided with O shape cushion rubber, fishing joint is set in outside top connection and the central tube, be arranged with outer tube on the central tube of fishing joint bottom, sheathed successively packing element head on the outer tube, long packing element type, spacer ring, short rubber cylinder, spacer ring, long packing element type, the upper end of packing element head is sandwiched between central tube outer wall and the fishing joint inwall, be provided with O shape cushion rubber between the inwall of packing element head and the central tube outer wall, overcoat is set in outside packing element head and the fishing joint, be provided with the deblocking shear pin between overcoat and the fishing joint, sheathed adapter sleeve on the outer tube of last long packing element type lower end, sheathed successively cone on the central tube of adapter sleeve lower end, slips, the centralizer body seat, the upper end of cone is plugged between outer tube and the adapter sleeve, fix with trip bolt between cone and the adapter sleeve, casing pipe sleeve is located at cone, outside slips and the centralizer body seat, leaf spring is arranged between slips and the sleeve pipe, centralizer body seat lower end is arranged with brake pad, be provided with arc leaf spring between centralizer body seat outer wall and the brake pad, centralizer body seat lower end outer wall is arranged with the centralizer body pressure cap, lock by lock ring between the two, centralizer body pressure cap lower end is arranged with the anti-lock ring of sitting, and the outside, central tube lower end is arranged with lower contact.

The beneficial effects of the utility model are:

The mode that adopts rotation to transfer when 1, this mechanical type bridging plug sets can be saved pump truck when oil field operation;

2, this mechanical type bridging plug and different tool combinations can satisfy to seal up and adopt down, or adopt under the envelope, or adopt upper and lower oil production technology in the middle of the envelope;

3, this mechanical type bridging plug sealing load height, on press 70MPa, press down 35MPa; Slips anchoring is firm; Salvage and adopt the shear pin mode to add lock dog, salvage easily.

Description of drawings

Fig. 1 is the half section schematic diagram of the utility model embodiment.

The specific embodiment

See also shown in Figure 1, be embodiment of the present utility model, be by top connection 1, break joint 2, fishing joint 3, O shape cushion rubber 4,7, deblocking shear pin 5, overcoat 6, packing element head 8, long packing element type 9, short rubber cylinder 10, spacer ring 11, outer tube 12, adapter sleeve 13, trip bolt 14, cone 15, slips 16, leaf spring 17, centralizer body seat 18, brake pad 19, semielliptic spring 20, lock ring 21, centralizer body pressure cap 22, the anti-lock ring 23 of sitting, central tube 24, lower contact 25 and sleeve pipe 26 constitute, central tube 24 upper ends connect top connection 1 by breaking joint 2, the two ends of breaking joint 2 are located in top connection 1 and the central tube 24, break between the outer wall of joint 2 and central tube 24 inwalls and be provided with O shape cushion rubber 4, fishing joint 3 is set in outside top connection 1 and the central tube 24, be arranged with outer tube 12 on the central tube 24 of fishing joint 3 bottoms, sheathed successively packing element head 8 on the outer tube 12, long packing element type 9, spacer ring 11, short rubber cylinder 10, spacer ring 11, long packing element type 9, the upper end of packing element head 8 is sandwiched between central tube 24 outer walls and fishing joint 3 inwalls, be provided with O shape cushion rubber 7 between the inwall of packing element head 8 and central tube 24 outer walls, overcoat 6 is set in outside packing element head 8 and the fishing joint 3, be provided with deblocking shear pin 5 between overcoat 6 and the fishing joint 3, sheathed adapter sleeve 13 on the outer tube 12 of last long packing element type 9 lower end, sheathed successively cone 15 on the central tube 24 of adapter sleeve 13 lower ends, slips 16, centralizer body seat 18, the upper end of cone 15 is plugged between outer tube 12 and the adapter sleeve 13, fixing between cone 15 and the adapter sleeve 13 with trip bolt 14, sleeve pipe 26 is set in cone 15, outside slips 16 and the centralizer body seat 18, leaf spring 17 is arranged between slips 16 and the sleeve pipe 26, centralizer body seat 18 lower ends are arranged with brake pad 19, be provided with arc leaf spring 20 between centralizer body seat 18 outer walls and the brake pad 19, centralizer body seat 18 lower end outer walls are arranged with centralizer body pressure cap 22, lock by lock ring 21 between the two, centralizer body pressure cap 22 lower ends are arranged with the anti-lock ring 23 of sitting, and the outside, central tube 24 lower ends is arranged with lower contact 25.

Claims

1, a kind of mechanical type bridging plug, it is characterized in that: be by top connection, break joint, fishing joint, O shape cushion rubber, the deblocking shear pin, overcoat, the packing element head, long packing element type, short rubber cylinder, spacer ring, outer tube, adapter sleeve, trip bolt, cone, slips, leaf spring, the centralizer body seat, brake pad, semielliptic spring, lock ring, the centralizer body pressure cap, the anti-lock ring of sitting, central tube and lower contact constitute, the central tube upper end connects top connection by breaking joint, the two ends of breaking joint are located in top connection and the central tube, break between the outer wall of joint and the central tube inwall and be provided with O shape cushion rubber, fishing joint is set in outside top connection and the central tube, be arranged with outer tube on the central tube of fishing joint bottom, sheathed successively packing element head on the outer tube, long packing element type, spacer ring, short rubber cylinder, spacer ring, long packing element type, the upper end of packing element head is sandwiched between central tube outer wall and the fishing joint inwall, be provided with O shape cushion rubber between the inwall of packing element head and the central tube outer wall, overcoat is set in outside packing element head and the fishing joint, be provided with the deblocking shear pin between overcoat and the fishing joint, sheathed adapter sleeve on the outer tube of last long packing element type lower end, sheathed successively cone on the central tube of adapter sleeve lower end, slips, the centralizer body seat, the upper end of cone is plugged between outer tube and the adapter sleeve, fix with trip bolt between cone and the adapter sleeve, casing pipe sleeve is located at cone, outside slips and the centralizer body seat, leaf spring is arranged between slips and the sleeve pipe, centralizer body seat lower end is arranged with brake pad, be provided with arc leaf spring between centralizer body seat outer wall and the brake pad, centralizer body seat lower end outer wall is arranged with the centralizer body pressure cap, lock by lock ring between the two, centralizer body pressure cap lower end is arranged with the anti-lock ring of sitting, and the outside, central tube lower end is arranged with lower contact.