CN201372784Y

CN201372784Y - Oil well separate-layer proration regulator

Info

Publication number: CN201372784Y
Application number: CN200920106415U
Authority: CN
Inventors: 赵荣生; 孙丽英; 付阳秋; 闫敬波
Original assignee: China Petroleum and Natural Gas Co Ltd
Current assignee: China Petroleum and Natural Gas Co Ltd
Priority date: 2009-03-20
Filing date: 2009-03-20
Publication date: 2009-12-30
Anticipated expiration: 2019-03-20

Abstract

An oil well separate-layer proration regulator comprises an upper joint 1, a central pipe 2, an outer pipe 3, a retainer ring 8, a rubber barrel 9, a diversion sleeve 10, a connection sleeve 12, a rubber ring 13 and a lower joint 14. The oil well separate-layer proration regulator is characterized in that a plunger sleeve 6 is arranged between the upper joint 1 and the retainer ring 8, and a regulation sleeve 4, a spring 5 and a plunger 7 are arranged between the plunger sleeve 6 and the outer pipe 3. The utility model has reasonable structural design, convenience in processing and reliable operation, when the regulator is used for assembling a separate-layer flow string with anchors, a common deep-well pump can be used for pumping oil from different layers, and thus the utility model simplifies process structure and is convenient for production management.

Description

A kind of oil well delamination production mandrel

Technical field:

The utility model relates to a kind of oil field downhole tool, especially for a kind of oil well delamination production mandrel of pumpingh well.

Technical background:

Before the utility model, each oil field is for realizing the oil production by layer of oil well different layers position, the general employing organized the special separate extracting pumps that comprise production mandrel, packer, anchor more, not only process structure complexity, operation easier are big, but also, also increased inconvenience for production management owing to need transform to deep well pump.

Summary of the invention:

The purpose of this utility model is: for the oil field oil production by layer provides a kind of oil well delamination production mandrel, because this device has adopted production mandrel and packer integral structure, with anchor combine and assemble separate-layer production string the time, need not deep well pump is transformed, use common deep well pump can realize the oil production by layer of the different series of strata of oil well, both simplify process structure, made things convenient for production management again.

The purpose of this utility model realizes by following measure: a kind of oil well delamination production mandrel, comprise top connection, central tube, outer tube, ring washer, packing element, the water conservancy diversion cover, adapter sleeve, cushion rubber, lower contact, and the top connection inner tubal wall lower end of short tubular connects the central tube of elongate tubular, central tube outer wall joint outer wall from top to bottom is equipped with the outer tube of short tubular successively, the water conservancy diversion cover, adapter sleeve, ring washer also is installed on the outer tube wall of outer tube, packing element, it is characterized in that the plunger bushing of top connection outer tube wall lower end to the short tubular that a tube wall band filter sand inlet is installed between the ring washer, the annular space between plunger bushing and the outer tube is set with tapped ring-type adjustment cover from top to bottom, spiral spring and have the ring-type plunger of sealing ring; The top of outer tube wall, middle part, bottom are processed with balance pipe, inlet opening, fluid hole respectively, also are processed with pod apertures on the tube wall of water conservancy diversion cover; Tapped annular spacer ring is installed between central tube outer tube wall bottom and the adapter sleeve, between central tube lower end outer tube wall and the lower contact inwall cushion rubber is installed.

The utility model reasonable in design, be convenient to processing, reliable operation, with anchor combine and assemble separate-layer production string the time, use common deep well pump can realize the oil production by layer of oil well different layers position, both simplified process structure, made things convenient for production management again.

Description of drawings:

Fig. 1 is the structural representation of oil well delamination production mandrel.

The specific embodiment:

The oil well delamination production mandrel is to be made of top connection 1, central tube 2, outer tube 3, adjustment cover 4, spring 5, plunger bushing 6, plunger 7, ring washer 8, packing element 9, water conservancy diversion cover 10, spacer ring 11, adapter sleeve 12, cushion rubber 13, lower contact 14 etc.The top connection 1 inner tubal wall lower end of short tubular connects the central tube 2 of elongate tubular, and central tube 2 outer walls joint 14 outer walls upper end from top to bottom are equipped with outer tube 3, water conservancy diversion cover 10, the adapter sleeve 12 of short tubular successively, and ring washer 8, packing element 9 also are installed on the outer tube wall of outer tube 3; Top connection 1 outer tube wall lower end is to the plunger bushing 6 of the short tubular that a tube wall band filter sand inlet is installed between the ring washer 8, and the annular space between plunger bushing 6 and the outer tube 3 is set with tapped ring-type adjustment cover 4, spiral spring 5 from top to bottom and has the ring-type plunger 7 of sealing ring; The top of outer tube 3 tube walls, middle part, bottom are processed with balance pipe, inlet opening, fluid hole respectively, also are processed with pod apertures on the tube wall of water conservancy diversion cover 10; Between central tube 2 outer tube wall bottoms and the adapter sleeve 12 tapped annular spacer ring 11 is installed, between central tube 2 lower end outer tube walls and lower contact 14 inwalls cushion rubber 13 is installed.

The operating principle and the using method of oil well delamination production mandrel are: adjust the starting pressure that cover 4 is adjusted 5 pairs of plungers 7 of spring by rotation earlier, again by top connection 1, lower contact 14 is assembled into the oil well delamination production mandrel on the separate-layer production string and down to the precalculated position, down-hole, should be before the work by cooperating with anchor on the separate-layer production string, give top connection 1 certain pressure, cause it to drive central tube 2, outer tube 3, it is descending jointly to adjust cover 4 and ring washer 8 etc., 8 compressings of ring washer this moment packing element 9 discharges and the packing branch is adopted layer position, fluid hole on the outer tube 3 bottom tube walls is communicated with the pod apertures that water conservancy diversion overlaps on 10 tube walls, and the oil well delamination production mandrel enters duty; The output liquid of its lower floor position can directly enter in the separate-layer production string by lower contact 14 during work, it is up that the output liquid of its position, upper strata then can promote plunger 7 by the filter sand inlet on the plunger bushing 6, and the inlet opening by outer tube 3 tube walls middle parts enters the annular space between central tube 2 and the outer tube 3, overlap pod apertures on 10 tube walls by fluid hole on the outer tube 3 bottom tube walls and water conservancy diversion again, converge with the output liquid of oil well delamination production mandrel lower floor position, together enter in the separate-layer production string by lower contact 14, enter the deep well pump on the separate-layer production string, realize the oil production by layer of different layers position.

After the work of oil well delamination production mandrel is finished, can be by putting on joint 1 on the separate-layer production string, and drive central tube 2, outer tube 3, to adjust cover 4 and ring washer 8 etc. up jointly, the pressure of 8 pairs of packing elements 9 of ring washer this moment disappears, 9 contractions of packing element just can trip out this device from the down-hole.

Claims

1, a kind of oil well delamination production mandrel, comprise top connection, central tube, outer tube, ring washer, packing element, the water conservancy diversion cover, adapter sleeve, cushion rubber, lower contact, and the top connection inner tubal wall lower end of short tubular connects the central tube of elongate tubular, central tube outer wall joint outer wall from top to bottom is equipped with the outer tube of short tubular successively, the water conservancy diversion cover, adapter sleeve, ring washer also is installed on the outer tube wall of outer tube, packing element, it is characterized in that: top connection outer tube wall lower end is to the plunger bushing of the short tubular that a tube wall band filter sand inlet is installed between the ring washer, and the annular space between plunger bushing and the outer tube is set with tapped ring-type adjustment cover from top to bottom, spiral spring and have the ring-type plunger of sealing ring; The top of outer tube wall, middle part, bottom are processed with balance pipe, inlet opening, fluid hole respectively, also are processed with pod apertures on the tube wall of water conservancy diversion cover; Tapped annular spacer ring is installed between central tube outer tube wall bottom and the adapter sleeve, between central tube lower end outer tube wall and the lower contact inwall cushion rubber is installed.