CN214436981U

CN214436981U - Clear away incomplete micelle of acidizing fracturing fluid and mix and join in marriage liquid relay device

Info

Publication number: CN214436981U
Application number: CN202022937772.1U
Authority: CN
Inventors: 张仲春; 张明; 马中国; 白建林; 江晨硕; 张瑞; 李建芳
Original assignee: Karamay Kemeili Chemical Co ltd
Current assignee: Karamay Kemeili Chemical Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-10-22
Anticipated expiration: 2030-12-10

Abstract

The utility model relates to an acidizing fracturing technical field is a clear away acidizing fracturing fluid incomplete micelle and mixes liquid relay unit, and it includes right-hand member open-ended box, filter screen and sealed apron, the filter violently locates between inside wall and the back inside wall before the box, and filter bottom fixed mounting has filter screen support, and the filter screen is installed on filter screen support, and the box antetheca is equipped with the fracturing fluid inlet of at least one inside and outside intercommunication, and the box antetheca is equipped with at least one first clear water inlet, and the box back wall is equipped with at least one liquid outlet, is equipped with at least one second clear water inlet and liquid additive inlet on the box roof, and sealed apron can dismantle seal installation in the box right-hand member. The utility model has the advantages of reasonable and compact structure, convenient to use, it can effectively filter the incomplete micelle of fracturing fluid through filter plate and filter screen, has improved the utilization ratio of fracturing fluid greatly to reduce the emergence of the "pump thorn that holds back hourglass" condition in the acidizing fracturing work progress, reduce environmental pollution.

Description

Clear away incomplete micelle of acidizing fracturing fluid and mix and join in marriage liquid relay device

Technical Field

The utility model relates to an acidizing fracturing technical field is a clear away acidizing fracturing fluid incomplete micelle and mix and join in marriage liquid relay unit.

Background

In most oil and gas fields in China, the reservoir conditions are generally deviated, and industrial oil and gas can be obtained only by carrying out acidizing fracturing modification. The working principle of acidizing and fracturing is simply described as the process of injecting characteristic liquid into the ground under high pressure, increasing the permeability of the near-wellbore area through a certain chemical reaction, and discharging the liquid back to the ground. If the liquid with the characteristics is not stirred properly in a circulating way in the preparation process, fish eyes or pasty insoluble substances, namely residual gum lumps or residual gum lump-shaped substances are easy to form. Because the residual gum mass block exists, huge troubles are brought to the acid fracturing construction, in the construction process, if the residual gum mass block is sucked into the high-pressure pump, because the clearance between the plunger head and the cylinder body is limited, the massive residual gum mass block cannot be pumped into a shaft at high pressure, the residual gum mass can be stuck on the high-pressure pump head, the motion resistance of the residual gum mass block is increased, when the residual gum mass is increased to a certain degree, the pump puncture accident can occur, the high-pressure pump truck stops working, and the acid fracturing construction is stopped. At present, the usual solution mainly is that the use amount of each jar of acidizing fracturing fluid is controlled, generally when liquid is pumped away in the acid tank and remains 2-3m during the year of carrying out the year, stops to use the liquid in this jar promptly, after the construction, discharges this part raffinate, and the incomplete micelle lump thing in the manual work removal jar, this kind of method of driving incomplete micelle has obvious defect: waste, environmental pollution and personal injury.

Disclosure of Invention

The utility model provides a clear away acidizing fracturing fluid cull group and mix and join in marriage liquid relay has overcome above-mentioned prior art not enough, and it can effectively solve the cull group that exists among the prior art and filter effectively and get rid of and then lead to the easy emergence "suppress the accident of pump thorn hourglass" and cause the extravagant and polluted environment's problem of fracturing fluid.

The technical scheme of the utility model is realized through following measure: the utility model provides a clear away mixed liquid relay unit that joins in marriage of acidizing fracturing fluid cull group, including right-hand member open-ended box, the filter, filter screen and sealed apron, the filter violently locates between inside wall and the back inside wall before the box, filter bottom fixed mounting has the filter screen support, the filter screen is installed on the filter screen support, be equipped with the fracturing fluid inlet of at least one inside and outside intercommunication on the box antetheca that corresponds filter top position, be equipped with the first clear water inlet of at least one inside and outside intercommunication on the box antetheca that corresponds filter below position, be equipped with the liquid outlet of at least one inside and outside intercommunication on the box back wall that corresponds filter below position, be equipped with the second clear water inlet of at least one inside and outside intercommunication and the liquid additive inlet of inside and outside intercommunication on the box roof that corresponds filter top position, sealed apron demountable seal installation is in the box right-hand member.

The following are further optimization or/and improvement of the technical scheme of the utility model:

all be equipped with the spout that a left and right level set up and the right-hand member extends to the box right side on the box front side inner wall and the rear side inner wall of above-mentioned box that correspond filter front end and rear end position, the front end and the rear end of filter are slidable mounting respectively in the spout.

The sealing cover plate is provided with a plurality of bolt mounting holes, mounting screw holes are formed in the right end face of the box body corresponding to the positions of the bolt mounting holes, a sealing strip is arranged between the sealing cover plate and the right side face of the box body, and the sealing cover plate is detachably and hermetically mounted at the right end of the box body through bolts connected with the mounting screw holes in a threaded mode.

A plurality of round filtering holes which are communicated up and down are uniformly distributed on the filtering plate at intervals, and the aperture of each filtering hole is between 5mm and 15 mm.

Six fracturing fluid inlets and six first clear water inlets are uniformly distributed at intervals on the front wall of the box body, six liquid outlets are uniformly distributed at intervals on the rear wall of the box body, and six second clear water inlets and three liquid additive inlets are uniformly distributed at intervals on the top wall of the box body.

The inner side of the fracturing fluid inlet, the inner side of the first clear water inlet, the inner side of the second clear water inlet, the inner side of the liquid additive inlet and the inner side of the liquid outlet can be respectively provided with a short connecting pipe, and one end of the short connecting pipe, which is far away from the wall of the box body, is fixedly connected with a valve connecting flange.

The utility model has the advantages of reasonable and compact structure, convenient to use, it can effectively filter the incomplete micelle of fracturing fluid through filter plate and filter screen, has improved the utilization ratio of fracturing fluid greatly to reduce the emergence of the "pump thorn that holds back hourglass" condition in the acidizing fracturing work progress, reduce environmental pollution, have characteristics simple and convenient, high-efficient, environmental protection.

Drawings

Fig. 1 is a schematic structural view of the preferred embodiment of the present invention.

Fig. 2 is a schematic top view of the structure of fig. 1.

FIG. 3 is a schematic cross-sectional view at A-A of FIG. 1.

The codes in the figures are respectively: the device comprises a box body 1, a filter plate 2, a filter screen support 3, a filter screen 4, a fracturing fluid inlet 5, a first clear water inlet 6, a liquid outlet 7, a second clear water inlet 8, a liquid additive inlet 9, a sealing cover plate 10, a sliding groove 11, a valve connecting flange 12, a filter hole 13 and a connecting short pipe 14.

Detailed Description

The utility model discloses do not receive the restriction of following embodiment, can be according to the utility model discloses a technical scheme and actual conditions determine concrete implementation.

In the present invention, for convenience of description, the description of the relative position relationship of the components is described according to the layout mode of the attached drawing 1 in the specification, such as: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawings of the specification.

The invention will be further described with reference to the following examples and drawings:

as shown in attached figures 1, 2 and 3, the relay device for mixing and preparing acidizing fracturing fluid residual micelles comprises a box body 1 with an opening at the right end, a filter plate 2, a filter screen 4 and a sealing cover plate 10, wherein the filter plate 2 is transversely arranged between the front inner side wall and the rear inner side wall of the box body 1, the bottom of the filter plate 2 is fixedly provided with a filter screen bracket 3, the filter screen 4 is arranged on the filter screen bracket 3, the front wall of the box body 1 corresponding to the position above the filter plate 2 is provided with at least one fracturing fluid inlet 5 which is communicated with the inside and the outside, the front wall of the box body 1 corresponding to the position below the filter plate 2 is provided with at least one first clear water inlet 6 which is communicated with the inside and the outside, the rear wall of the box body 1 corresponding to the position below the filter plate 2 is provided with at least one liquid outlet 7 which is communicated with the inside and the outside, the top wall of the box body 1 corresponding to the position above the filter plate 2 is provided with at least one second clear water inlet 8 which is communicated with the inside and the outside and the liquid additive inlet 9 which is communicated with the inside and the outside, the sealing cover plate 10 is detachably and hermetically arranged at the right end of the box body 1.

When the device is used, a fracturing fluid tank pipeline is fixedly communicated with a fracturing fluid inlet 5, a well-flushing fluid tank pipeline is fixedly communicated with a first clear water inlet 6 and a second clear water inlet 8, a liquid additive tank pipeline is fixedly communicated with a liquid additive inlet 9, and a liquid outlet 7 is fixedly communicated with an on-site sand mixing truck pipeline; opening a fracturing fluid tank pipeline and a liquid additive fluid tank pipeline, enabling an additive and fracturing fluid to enter a box body 1 through a liquid additive liquid inlet 9 and a fracturing fluid liquid inlet 5 respectively and to be mixed in the box body 1, enabling the fracturing fluid to enter from the fracturing fluid liquid inlet 5 above the box body 1 and then to sequentially pass through a filter plate 2 and a filter screen 4 in the middle of the box body 1, filtering residual micelle blocks contained in the fracturing fluid through the filter plate 2 and the filter screen 4, and enabling the residual clean fracturing fluid to flow out from a liquid outlet 7 below the box body 1 to supply liquid to a sand mixing truck; when replacing the liquid, the fracturing liquid tank pipeline and the liquid additive liquid tank pipeline are closed, the well washing liquid tank pipeline is opened, clear water enters the interior of the box body 1, and the clear water replaces the residual fracturing liquid in the box body 1 and is discharged from the liquid outlet 7. After the construction of acidizing fracturing is finished, the sealing cover plate 10 is opened, and the residual micelle blocks on the filter plates 2 and the filter screens 4 are cleaned and treated in a centralized manner. The utility model has the advantages of reasonable and compact structure, convenient to use, it can effectively filter fracturing fluid cull group through filter plate 2 and filter screen 4, has improved the utilization ratio of fracturing fluid greatly to reduce the emergence of the "pump thorn that holds back hourglass" condition in the acidizing fracturing work progress, reduce environmental pollution, have characteristics simple and convenient, high-efficient, environmental protection.

The relay device for mixed liquid preparation for removing the residual micelle of the acidizing fracturing fluid can be further optimized or/and improved according to actual needs:

as shown in the attached figure 3, the inner wall of the front side and the inner wall of the rear side of the box body 1 are both provided with a sliding groove 11 which is horizontally arranged from left to right and the right end of which extends to the right side of the box body, and the front end and the rear end of the filter plate 2 are respectively slidably arranged in the sliding groove 11. Through making filter 2 slidable mounting on 1 inner wall of box, be convenient for take out filter 2 and filter screen 4 from box 1 after the acidizing fracturing construction and wash and change.

According to the needs, be equipped with a plurality of bolt mounting hole on the sealed apron 10, all be equipped with the installation screw on the 1 right-hand member face of box that corresponds every bolt mounting hole position, be equipped with the sealing strip between sealed apron 10 and the 1 right flank of box, sealed apron 10 passes through the bolt detachable seal installation in the 1 right-hand member of box of spiro union in the installation screw. The sealing cover plate 10 is detachably and hermetically arranged at the right end of the box body 1 through bolts, so that the sealing cover plate 10 is tightly connected with the box body 1, and the sealing performance of the joint is ensured.

As shown in attached figures 2 and 3, a plurality of circular filtering holes 13 which are through up and down are uniformly distributed on the filtering plate 2 at intervals, and the aperture of each filtering hole 13 is between 5mm and 15 mm. The aperture of the filter holes 13 is set to be between 5mm and 15mm, so that the filter effect is better, and most of residual micelles can be removed when the fracturing fluid is filtered for the first time.

As shown in attached figures 1 and 2, six fracturing fluid inlets 5 and six first clear water inlets 6 are uniformly distributed on the front wall of the box body 1 at intervals, six liquid outlets 7 are uniformly distributed on the rear wall of the box body 1 at intervals, and six second clear water inlets 8 and three liquid additive inlets 9 are uniformly distributed on the top wall of the box body 1 at intervals. According to needs, the combination that sets up 1 fracturing fluid inlet 5, 1 first clear water inlet 6, 1 second clear water inlet 8 and 1 liquid outlet 7 on box 1 can be a filter unit, can satisfy most on-the-spot demands through setting up six filter units, can also increase and decrease filter unit's number according to the on-the-spot requirement of difference, and the number of liquid additive inlet 9 sets up according to the on-the-spot demand.

As shown in fig. 1, 2 and 3, a short connecting pipe 14 is disposed inside the fracturing fluid inlet 5, the first clean water inlet 6, the second clean water inlet 8, the liquid additive inlet 9 and the liquid outlet 7, and one end of the short connecting pipe 14 away from the wall of the box body 1 is fixedly connected with a valve connecting flange 12. And flat valves are respectively arranged on the fracturing fluid inlet 5, the first clear water inlet 6, the second clear water inlet 8, the liquid additive inlet 9 and the liquid outlet 7 through valve connecting flanges 12, and each flat valve is connected with a pipeline corresponding to each inlet or outlet 7 so as to control the circulation of liquid.

Above technical feature constitutes the utility model discloses a best embodiment, it has stronger adaptability and best implementation effect, can increase and decrease unnecessary technical feature according to actual need, satisfies the demand of different situation.

Claims

1. A mixed liquid preparation relay device for removing residual micelle of acidizing fracturing fluid is characterized by comprising a box body with an opening at the right end, a filter plate, a filter screen and a sealing cover plate, the filter plate is transversely arranged between the front inner side wall and the rear inner side wall of the box body, the bottom of the filter plate is fixedly provided with a filter screen bracket, the filter screen is arranged on the filter screen bracket, at least one fracturing fluid inlet which is communicated internally and externally is arranged on the front wall of the box body corresponding to the position above the filter plate, at least one first clear water inlet which is communicated with the inside and the outside is arranged on the front wall of the box body corresponding to the position below the filter plate, the box back wall corresponding to the position below the filter plate is provided with at least one liquid outlet communicated with the inside and the outside, the box top wall corresponding to the position above the filter plate is provided with at least one second clean water inlet communicated with the inside and the outside and a liquid additive inlet communicated with the inside and the outside, and the sealing cover plate is detachably and hermetically arranged at the right end of the box.

2. The apparatus of claim 1, wherein the front and rear inner walls of the housing corresponding to the front and rear ends of the filter plate are each provided with a slide groove extending horizontally from left to right and extending from the right end to the right side of the housing, and the front and rear ends of the filter plate are slidably mounted in the slide grooves.

3. The mixed liquid preparation relay device for removing the acid fracturing fluid residual micelles according to claim 1 or 2, characterized in that the sealing cover plate is provided with a plurality of bolt mounting holes, the right end surface of the box body corresponding to the position of each bolt mounting hole is provided with a mounting screw hole, a sealing strip is arranged between the sealing cover plate and the right side surface of the box body, and the sealing cover plate is detachably and hermetically mounted at the right end of the box body through a bolt screwed with the mounting screw hole.

4. The mixed liquid preparation relay device for removing the residual micelle of the acidizing fracturing fluid according to claim 1 or 2, wherein a plurality of circular filtering holes which are through from top to bottom are uniformly distributed on the filtering plate at intervals, and the aperture of each filtering hole is between 5mm and 15 mm.

5. The mixed liquid-mixing relay device for removing the acid fracturing fluid residual micelles according to claim 3, wherein a plurality of circular filtering holes which are through from top to bottom are uniformly distributed on the filtering plate at intervals, and the aperture of each filtering hole is between 5mm and 15 mm.

6. The mixed liquid preparation relay device for removing the acidized fracturing fluid residual micelles according to claim 1, 2 or 5, wherein six fracturing fluid inlets and six first clean water inlets are uniformly distributed at intervals on the front wall of the box body, six liquid outlets are uniformly distributed at intervals on the rear wall of the box body, and six second clean water inlets and three liquid additive inlets are uniformly distributed at intervals on the top wall of the box body.

7. The mixed fluid relay device for removing the acid fracturing fluid residual micelles of claim 3, wherein six fracturing fluid inlets and six first clean water inlets are uniformly distributed on the front wall of the box body at intervals, six fluid outlets are uniformly distributed on the rear wall of the box body at intervals, and six second clean water inlets and three liquid additive inlets are uniformly distributed on the top wall of the box body at intervals.

8. The mixed fluid relay device for removing the acid fracturing fluid residual micelles according to claim 4, wherein six fracturing fluid inlets and six first clean water inlets are uniformly distributed on the front wall of the box body at intervals, six fluid outlets are uniformly distributed on the rear wall of the box body at intervals, and six second clean water inlets and three liquid additive inlets are uniformly distributed on the top wall of the box body at intervals.

9. The mixed liquid preparation relay device for removing the acidized fracturing fluid residual micelles according to claim 1, 2, 5, 7 or 8, wherein the inner sides of the fracturing fluid inlet, the first clear water inlet, the second clear water inlet, the liquid additive inlet and the liquid outlet are respectively provided with a short connecting pipe, and one end of each short connecting pipe, which is far away from the wall of the box body, is fixedly connected with a valve connecting flange.

10. The mixed fluid distribution relay device for removing the acid fracturing fluid residual micelles according to claim 3, wherein the inner sides of the fracturing fluid inlet, the first clear water inlet, the second clear water inlet, the liquid additive inlet and the liquid outlet are respectively provided with a short connecting pipe, and one end of each short connecting pipe, which is far away from the wall of the box body, is fixedly connected with a valve connecting flange.