CN203742500U - Release device - Google Patents

Abstract

The utility model relates to a release device. The lower portion of an upper release joint is installed in the upper portion of a lower release joint. A release shear pin is installed on the upper release joint and the lower release joint. A lock groove of the upper release joint corresponds to a lock window of the lower release joint, and a lock block is placed in the lock window. An upper sealing ring is installed between the upper release joint and the lower release joint. The lower release joint is sleeved with a releasing pipe and a spring. The lock block is wrapped in the releasing pipe. A communicating hole is formed in the middle of the lower release joint. A middle sealing ring and a lower sealing ring are installed between the lower release joint and an outer sleeve, the middle sealing ring is located above the communicating hole, and the lower sealing ring is located below the communicating hole. Annular space is formed between the lower release joint and the outer sleeve through diameter difference and located between the middle sealing ring and the lower sealing ring. The lower portion of the lower release joint is connected with the upper portion of a lower joint, a releasing groove is formed in the releasing pipe, the releasing pipe is sleeved with the outer sleeve, the upper portion of the outer sleeve is connected with the upper portion of the lower release joint, and an unlocking shear pin is installed on the releasing pipe and the outer sleeve. Reliable release can be performed, and the success rate of construction can be increased.

Description

A kind of releasing device

Technical field

The utility model is the underground equipment that oil field operation is used, and is a kind of releasing device.

Background technology

While implementing separate layer acid treatment pressure break and zonal water plugging operation, downhole tool need to be divided in well to two parts, a part proposes aboveground next, and a part is stayed instrument in well.Downhole tool is divided in well to two-part instrument and is called releasing device.The current releasing device part that comes with some shortcomings, distinct issues are buried rear releasing gadget by sand and foreign material will be malfunctioning, and the problem that appearance cannot be given up, causes and constructs unsuccessfully, produces heavy economic losses.

Summary of the invention

The purpose of this utility model is a kind of releasing device of design, can reliable releasing, and improve and be constructed into power.

The purpose of this utility model is achieved in that and comprises the top connection of giving up, the lower contact of giving up, lock dog, the shear pin of giving up, upper sealing ring, middle sealing ring, releasing tube, lower seal, release shear pin, overcoat, spring, lower contact, the give up bottom of top connection is arranged on and gives up in lower contact top, the shear pin of giving up is arranged on the top connection of giving up, give up in lower contact, give up on the outer wall of top connection and have locked groove, give up in lower contact and have lock window, the corresponding locked groove of lock window, in in lock window, place lock dog, the inwall of lock dog enters in the locked groove on the outer wall of the top connection of giving up, give up top connection and give up and install sealing ring between lower contact, upper sealing ring is under the shear pin of giving up, the lower contact of giving up is set with releasing tube outward, spring, the inwall of releasing tube encases lock dog, lock dog can not outwards be moved, there is linked hole at the give up middle part of lower contact, linked hole is under upper sealing ring, give up between lower contact and overcoat install in sealing ring, lower seal, middle sealing ring is on linked hole, lower seal is under linked hole, give up between lower contact and overcoat by the poor annular space that forms of diameter, annular space is in middle sealing ring, between lower seal, between the inside of annular space and the lower contact of giving up by linked hole UNICOM, the give up bottom of lower contact and the top of lower contact is connected, make spring between releasing tube and lower contact, in releasing tube, there is release groove, release groove is under lock dog, the height of release groove is greater than the height of lock dog, coat suit is outside releasing tube, the top of overcoat is connected with the top of the lower contact of giving up, release shear pin is arranged on releasing tube and puts outward.

The beneficial effects of the utility model are: the inside of the component that need work while giving up in not buried, the base inside spy that both made to be mixed buries, while giving up, need the component of work also can move by the requirement of design, therefore, the utility model energy reliable releasing, can improve and be constructed into power, there is significant economic benefit.

Brief description of the drawings

Accompanying drawing 1 is the assembling drawing of the utility model embodiment.

Detailed description of the invention

Below in conjunction with accompanying drawing, embodiment of the present utility model is described.

As shown in Figure 1, embodiment of the present utility model comprises the top connection 1 of giving up, the lower contact 2 of giving up, lock dog 3, the shear pin 5 of giving up, upper sealing ring 6, middle sealing ring 7, releasing tube 9, lower seal 11, release shear pin 12, overcoat 13, spring 14, lower contact 15, the give up bottom of top connection 1 is arranged on and gives up in lower contact 2 tops, the shear pin 5 of giving up is arranged on the top connection 1 of giving up, give up in lower contact 2, give up on the outer wall of top connection 1 and have locked groove, give up in lower contact 2 and have lock window, the corresponding locked groove of lock window, in in lock window, place lock dog 3, the inwall of lock dog 3 enters in the locked groove on the outer wall of the top connection 1 of giving up, top connection 1 makes to give up, the lower contact 2 of giving up is locked in together, can accept the axial force of bottom, the upper and lower two ends of inwall of lock dog 3 are the conical surface, the corresponding upper and lower two ends of locked groove are also taper surfaces with it, give up top connection 1 and give up and install sealing ring 6 between lower contact 2, upper sealing ring 6 is under the shear pin 5 of giving up, the outer suit releasing tube 9 of the lower contact 2 of giving up, spring 14, the inwall of releasing tube 9 encases lock dog 3, lock dog 3 can not outwards be moved, the top connection 1 of giving up, the lower contact 2 of giving up is pinned, there is linked hole 8 at the give up middle part of lower contact 2, linked hole 8 is under upper sealing ring 6, give up between lower contact 2 and overcoat 13 install in sealing ring 7, lower seal 11, middle sealing ring 7 is on linked hole 8, lower seal 11 is under linked hole 8, give up between lower contact 2 and overcoat 13 by the poor annular space 10 that forms of diameter, annular space 10 is in middle sealing ring 7, between lower seal 11, between the inside of annular space 10 and the lower contact 2 of giving up by linked hole 8 UNICOMs, the give up bottom of lower contact 2 is connected with the top of lower contact 15, make spring 14 between releasing tube 9 and lower contact 15, spring 14 has certain pretightning force, in releasing tube 9, there is release groove 4, release groove 4 is under lock dog 3, the height of release groove 4 is greater than the height of lock dog 3, ensure that lock dog 3 can depart from the top connection 1 of giving up, overcoat 13 is sleeved on outside releasing tube 9, the top of overcoat 13 is connected with the top of the lower contact 2 of giving up, release shear pin 12 is arranged on releasing tube 9 and overcoat 13.

Before giving up, first inwardly suppress, pressure is in linked hole 8 imports annular space 10 into, pressure promotes releasing tube 9 and cuts off release shear pin 12, cancel after pressure, it is up that the pretightning force of spring 14 promotes releasing tube 9, make release groove 4 aim at lock dog 3, lock dog has taper surface in two ends Shang Xia 3, under responsive to axial force, produce outside radial load, make the outer wall of lock dog 3 carry out 4 li of release grooves, the inwall of lock dog 3 departs from the locked groove of the top connection 1 of giving up, again, propose the top connection 1 of giving up, the shear pin 5 of giving up is pulled off, and the top connection 1 of giving up departs from the lower contact 2 of giving up, and realization is given up.

Claims (1)

1. a releasing device, it is characterized in that: comprise the top connection of giving up (1), the lower contact (2) of giving up, lock dog (3), the shear pin (5) of giving up, upper sealing ring (6), middle sealing ring (7), releasing tube (9), lower seal (11), release shear pin (12), overcoat (13), spring (14), lower contact (15), the give up bottom of top connection (1) is arranged in the lower contact of giving up (2) top, the shear pin (5) of giving up is arranged on the top connection of giving up (1), give up in lower contact (2), give up on the outer wall of top connection (1) and have locked groove, give up in lower contact (2) and have lock window, the corresponding locked groove of lock window, in in lock window, place lock dog (3), the inwall of lock dog (3) enters in the locked groove on the outer wall of the top connection of giving up (1), give up and install sealing ring (6) between top connection (1) and the lower contact of giving up (2), upper sealing ring (6) is under the shear pin of giving up (5), the outer releasing tube (9) that is set with of the lower contact (2) of giving up, spring (14), the inwall of releasing tube (9) encases lock dog (3), lock dog (3) can not outwards be moved, there is linked hole (8) at the give up middle part of lower contact (2), linked hole (8) is under upper sealing ring (6), give up between lower contact (2) and overcoat (13) install in sealing ring (7), lower seal (11), middle sealing ring (7) is on linked hole (8), lower seal (11) is under linked hole (8), give up between lower contact (2) and overcoat (13) by the poor annular space (10) that forms of diameter, annular space (10) is in middle sealing ring (7), between lower seal (11), between the inside of annular space (10) and the lower contact of giving up (2) by linked hole (8) UNICOM, the give up bottom of lower contact (2) is connected with the top of lower contact (15), make spring (14) between releasing tube (9) and lower contact (15), in releasing tube (9), there is release groove (4), release groove (4) is under lock dog (3), the height of release groove (4) is greater than the height of lock dog (3), overcoat (13) is sleeved on outside releasing tube (9), the top of overcoat (13) is connected with the top of the lower contact of giving up (2), release shear pin (12) is arranged on releasing tube (9) and overcoat (13).