CN201568293U

CN201568293U - Spiral deflector-type oil-well pump screen pipe

Info

Publication number: CN201568293U
Application number: CN2009202660975U
Authority: CN
Inventors: 韩新民; 韩红丽; 姚博
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-11-05
Filing date: 2009-11-05
Publication date: 2010-09-01
Anticipated expiration: 2019-11-05

Abstract

The spiral deflector-type oil-well pump screen pipe comprises a suspended pup joint, an outer screen pipe, a center pipe, a multiheaded spiral body, a center slotted screen pipe, a filter gauze, an oil pipe and a strengthening body, wherein the upper end of the suspended pup joint is connected with an oil-well pump, the lower end the suspended pup joint is simultaneously connected with the outer screen pipe and the center pipe, the multiheaded spiral body is a facility which is provided with screw threads on the upper portion and lower portion, a through hole in the center and a multiheaded spiral diversion trenches on the body, the upper end of the multiheaded spiral body is connected with the center pipe, the lower end the multiheaded spiral body is connected with the center slotted screen pipe which is provided with the strengthening body of a cross-shaped structure, the outer wall of the center slotted screen pipe is coated with the filter gauze, and the pup joint is a facility used for connecting the outer screen pipe with the oil pipe. The spiral deflector-type oil-well pump screen pipe has the beneficial effects that the device of the utility model is scientific and practical, has reliable performance and can completely achieve the aims of cleaning sand and preventing other foreign matters from blocking the screen pipes; the pump detection period of a pumping well and the service life of a pump valve are prolonged, the material consumption is reduced, the working efficiency is enhanced, and the economic benefit is considerable.

Description

Spiral stream guidance formula oil well pump screen casing

Technical field

The utility model relates to oil field development production aspect, and spiral stream guidance formula oil well pump screen casing is applicable to that the pumping well tubing pump produces supporting use, belongs to the supplementary equipment technical field that pumping well pipe type pump is produced.

Technical background

Oil field great majority in exploitation use tubing pump to aspirate crude oil in the down-hole, when the oil field enters development phase middle and later periods, along with the oil reservoir rise of water cut, sand production in oil is increasingly sharpened, contain sand in the crude oil and reach the foreign material that in workover eration at ordinary times, are retained in the pit shaft, cause the screen casing of oil well pump easily to be stopped up at short notice by particle sand and foreign material, cause oil well pump feed flow deficiency, the component of badly damaged oil well pump and reduction oil well pump working efficiency, even make the oil well pump can't proper functioning, thereby increased operation inspection pump number of times, influence the ordinary production of crude oil widely, increased cost of production, expensive time-consuming.

Summary of the invention

The sand control screen that this spiral stream guidance formula oil well pump screen casing is primarily aimed at the oil pumping tubing pump carries out Renewal Design.Spiral stream guidance formula oil well pump screen construction is mainly reflected in the science practicality, and reliable performance has changed the flow direction of medium in pump barrel and made fluid produce fluid column rotation in the powered tail pipe, can thoroughly reach the purpose of sand removal, anti-other foreign material gambling plug screen casing.Prolong the working life of pumping well pump detection period and pump valve, reduce materials consumption, increase work efficiency, economic benefit is considerable.

The utility model is formed by hanging short circuit, outer screen pipe, center tube, multi-head spiral body, short circuit, center cutting seam sieve tube, filter screen, oil pipe and centralizer body.Hanging the short circuit upper end links to each other with oil well pump, the lower end connects outer screen pipe and center tube simultaneously, the multi-head spiral body is for having the facility that the screw thread center has through hole and design has the multi-head spiral guiding gutter on body up and down, multi-head spiral body upper end connects center tube, the lower end connects the center cutting seam sieve tube that has " ten " font structure centralizer body, center cutting seam sieve tube outer wall is wrapped in filter screen, and short circuit is the facility that is used for connecting outer screen pipe and oil pipe in addition.

The advantage that model utility is compared with other technologies has:

1. spiral stream guidance formula oil well pump screen casing utilizes the multi-head spiral guiding gutter, makes the fluid column rotation produce centrifugal force, liquid is carried out centrifugal clarification filter, and its filtering effect is higher than the filtering effect of other screen casing.

2. this screen casing can make the fluid column rotation, and the obstruction that can will be adsorbed on screen surface washes away, and guarantees that center cutting seam sieve tube feed liquor is unblocked, has remedied the defective of other screen casing.

3. after using checking, can prolong 6 months to 1 year time of pump detection period, and the cleaning surfaces of filter screen, unimpeded, sand card phenomenon does not appear in the production, and effect is splendid.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the structural representation of the utility model multi-head spiral body;

Fig. 3 is the plan view of the utility model multi-head spiral body.

Embodiment

Referring to Fig. 1, Fig. 2 and Fig. 3, the utility model consists of the following components: hang short circuit 1, outer screen pipe 2, center tube 3, multi-head spiral body 4, short circuit 5, center cutting seam sieve tube 6, filter screen 7, oil pipe 8, centralizer body 9.

Spiral stream guidance formula oil well pump screen construction characteristics: hanging short circuit 1 be center hole and threaded joint, hang short circuit 1 lower end and be connected with outer screen pipe 2, outer screen pipe 2 be on tube wall with the pipe of the even slot of laser, slot size, how much moderate; The screwed hole of centre that hangs short circuit 1 links to each other with center tube 3; The lower end of center tube 3 is connected with the upper end of multi-head spiral body 4; Multi-head spiral body 4 is for having screw thread, the center has through hole and design has multi-head spiral guiding gutter 11 on body mechanism up and down, and multi-head spiral body 4 upper ends connect center tube 3, downlink connection center, lower end cutting seam sieve tube 6; Center cutting seam sieve tube 6 is with the pipe of the even slot of laser on tube wall, slot size, how much moderate, center cutting seam sieve tube 6 lower ends and design have the centralizer body 9 of " ten " font, and inwall proper and oil pipe 8 matches around " ten " word structure of centralizer body 9, plays a part to set upright; The outer wall of center cutting seam sieve tube 6 is wrapped in filter screen 7; Short circuit 5 is the joint of screw thread in the double end, on connect outer screen pipe 2, connect oil pipe 8 down.

Working principle: during use the utility model is connected in the oil well pump tail pipe, with the supporting use of oil well pump, when the oil well pump feed liquor, liquid is under the effect of stratum pressure reduction, liquid is entered in the ring-like space 10a by outer screen pipe 2, along the multi-head spiral body 4 of passing through under the outer wall of center tube 3, under the effect of multi-head spiral guiding gutter 11, it is that the circumferencial direction injection is prolonged at the center with center cutting seam sieve tube 6 that the outlet fluid is 40 degree angles, liquid forms powerful rotation fluid column in ring-like space 10b, sand grains in the liquid, under action of centrifugal force, sink along the rotation of oil pipe 8 inwalls, played the effect of purification filtering liquid, and the liquid of powerful rotation plays souring again to center cutting seam sieve tube 6 and filter screen 7, and the obstruction that can will be adsorbed on the filter screen 7 washes away, and prevents center cutting seam sieve tube 6 and blocked phenomenon of 7 short time of filter screen, prolong the working life of oil well pump, reduced cost of production.

Claims

1. spiral stream guidance formula oil well pump screen casing, form by hanging short circuit (1), outer screen pipe (2), center tube (3), multi-head spiral body (4), short circuit (5), center cutting seam sieve tube (6), filter screen (7), oil pipe (8) and centralizer body (9), it is characterized in that: hang short circuit (1) and be screw thread and the threaded joint of center hole in the double end, hang short circuit (1) lower end and be connected with outer screen pipe (2), outer screen pipe (2) is with the pipe of the even slot of laser on the tube wall; The screwed hole of centre that hangs short circuit (1) links to each other with center tube (3); The lower end of center tube (3) is connected with the upper end of multi-head spiral body (4); Multi-head spiral body (4) is for having screw thread, the center has through hole and design has multi-head spiral guiding gutter (11) on body facility up and down, and multi-head spiral body (4) upper end connects center tube (3), and the lower end connects center cutting seam sieve tube (6); Center cutting seam sieve tube (6) is with the pipe of the even slot of laser on tube wall, the design of center cutting seam sieve tube (6) lower end has the centralizer body (9) of " ten " font, inwall proper and oil pipe (8) matches around " ten " word structure of centralizer body (9), and the outer wall of center cutting seam sieve tube (6) is wrapped in filter screen (7) in addition; Short circuit (5) is the joint of screw thread in the double end, on connect outer screen pipe (2), connect oil pipe (8) down.