CN218458799U - Solid-free completion fluid workover fluid filtering device for oil and gas well drilling - Google Patents

Abstract

The utility model discloses a solid-free well completion fluid workover fluid filtering device for oil and gas well drilling, which comprises a tank body and a cover body detachably connected with the tank body, wherein the side surface of the tank body is provided with a feed pipe and a discharge pipe, the bottom of the tank body is provided with a deslagging pipe, the discharge pipe is positioned above the feed pipe, the bottom of the tank body is in a conical structure, the deslagging pipe is arranged at the bottom of the tank body, and the deslagging pipe is provided with a valve; a filter assembly is arranged in the tank body, the filter assembly comprises a mounting ring, a mounting plate and a plurality of filter cartridge assemblies, the mounting ring is fixedly arranged on the inner wall of the tank body, the mounting plate is detachably arranged on the mounting ring, and a plurality of through holes are formed in the mounting plate; each through hole corresponds to one filter cylinder assembly; the tank body is divided into an upper area and a lower area by the mounting plate, a clear liquid area is arranged above the mounting plate, and a turbid liquid area is arranged below the mounting plate. The utility model discloses can solve the technical problem that the filter core blockked up easily in the use of reality.

Description

Solid-free completion fluid workover fluid filtering device for oil and gas well drilling

Technical Field

The utility model discloses well workover equipment technical field, concretely relates to oil gas well creeps into with no solid phase completion fluid workover fluid filter equipment.

Background

Workover treatment is a maintenance measure for maintaining or improving the oil and gas productivity, workover fluid is working fluid used during workover treatment, and the performance of the workover fluid directly influences the recovery effect of the production energy after the workover treatment. The oil field generally adopts clear water, stratum water or inorganic salt solution as workover fluid, but the clear water has poor compatibility with a reservoir stratum, so that the hydration and expansion of clay minerals are easy to occur, the reservoir stratum is blocked, the effective permeability is reduced, and the productivity is influenced.

The high-density solid-free well repairing fluid is a well repairing operation well-repairing fluid required by some special well conditions, and has the characteristics of good performance and high price. The recycling of the waste gas can save a large amount of operation cost, reduce emission and achieve the aims of reducing cost and emission.

After entering the well, the solid content, smell, color and luster of the completion fluid and the workover fluid are greatly changed, so that certain changes are brought to the performance, and the workover fluid needs to be properly treated to meet the technical requirements of recycling in order to realize the recycling of the workover fluid.

Most of workover fluid filtering devices used on site adopt a filter screen or a filter element for filtering; if the application number is: CN201921659315.1, the publication number is: CN 211025341U's utility model discloses a workover fluid filter equipment, contain at least one modularization filter unit, the modularization filter unit includes base and barrel, the inner chamber of barrel is divided into upper chamber and lower chamber by the baffle, be fixed with a plurality of screen pipes between the roof inner wall of baffle and barrel, the filter core is equipped with to the inside of screen pipe, the common cover in the outside of screen pipe is equipped with movable cleaning plate, movable cleaning plate is equipped with a plurality of annular cleaning brushes, annular cleaning brush housing is established in the screen pipe outside, movable cleaning plate is located to be close to the edge and is equipped with guiding hole and drive nut, wear to be equipped with the guide bar in the guiding hole, the spiro union has the lift lead screw in the drive nut, the lift lead screw links firmly with elevator motor's output shaft. The utility model can select a proper number of modularized filtering units according to the actual condition of the workover fluid by setting the filter as the modularized filtering units, so as to achieve the best filtering effect; the large-particle solid phase is intercepted before the filter element is filtered, so that the filter element is conveniently and fully utilized.

However, the utility model discloses an in the in-service use, when carrying out filterable to workover fluid, the debris of large granule will remain on filter screen and filter core, lead to filter screen and filter core to take place to block up very easily, and simultaneously, current filter equipment is very inconvenient when changing filter screen and filter core.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an oil gas well drilling is with no solid phase completion fluid workover fluid filter equipment, its technical problem that can solve the easy jam of filter core in the use of reality.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:

a solid-free completion fluid workover fluid filtering device for drilling of oil and gas wells comprises a tank body and a cover body detachably connected with the tank body, wherein a feeding pipe and a discharging pipe are arranged on the side surface of the tank body, a deslagging pipe is arranged at the bottom of the tank body, the discharging pipe is positioned above the feeding pipe, the bottom of the tank body is of a conical structure, the deslagging pipe is arranged at the bottom of the tank body, and a valve is arranged on the deslagging pipe;

the internal filter assembly that is provided with of jar, filter assembly includes:

the mounting ring is fixedly arranged on the inner wall of the tank body;

the mounting plate is detachably arranged on the mounting ring and is provided with a plurality of through holes;

each through hole corresponds to one filter cylinder component;

wherein, the mounting panel is divided into two upper and lower regions with the jar body, and the mounting panel top is the clear liquid region, and the below is the turbid liquid region, and filter cartridge assembly is located the clear liquid region, and the workover fluid in the turbid liquid region gets into filter cartridge assembly from filter cartridge assembly below and filters the back and get into in the clear liquid region.

Wherein, the tank body is connected with the cover body through a flange plate.

Further optimize, cartridge filter subassembly includes the urceolus and sets up the filtration inner core in the urceolus, filters the inner core and is cylindric structure, sets up a plurality of filtration pores on the urceolus, and the urceolus can be dismantled with the mounting panel and be connected.

Wherein, pass through threaded connection between urceolus and the mounting panel.

The upper end of the outer barrel is provided with an opening, the upper cover is arranged on the outer barrel and is in threaded connection with the outer barrel, a pressing mechanism is arranged on the upper cover and is used for pressing the upper end face of the filtering inner core, and a limiting part for preventing the filtering inner core from moving is arranged in the outer barrel.

Further optimize, hold-down mechanism includes clamp plate, spring and guide arm, and it is provided with the guide hole to cover on, and the guide arm slides and sets up in the guide hole, and the clamp plate is connected with the guide arm, and the spring suit is on the guide arm, and the spring both ends contact with upper cover and clamp plate respectively, and the baffle extends to the urceolus after, realizes sliding connection with the urceolus, is provided with first spacing portion on the guide arm.

Wherein, be provided with the external screw thread on the guide arm, first spacing portion is for setting up on the guide arm and with external screw thread complex lock nut.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model divides the tank body into an upper area and a lower area through the arranged mounting plate, and simultaneously, the filter cartridge assembly is arranged on the mounting plate, the side surface of the tank body is provided with the feeding pipe and the discharging pipe, the bottom is provided with the deslagging pipe, the discharging pipe is positioned above the feeding pipe, the bottom of the tank body is of a conical structure, the deslagging pipe is arranged at the bottom of the tank body, and the deslagging pipe is provided with a valve; therefore, in actual use, the purposes of side liquid inlet, top liquid outlet and bottom slag discharge can be realized, liquid enters a turbid liquid area in the tank body from the side surface of the tank body, at the moment, large-particle substances with large volume and heavy weight in the liquid move towards the bottom of the tank body under the action of gravity and are stored at the bottom of the tank body, and the liquid flows out of the discharge pipe in an overflow mode after being filtered by the filter cartridge assembly; at filterable in-process, can avoid the debris of large granule to block up filter cartridge assembly, can solve the technical problem that large granule debris blockked up filter screen or filter core in the in-service use.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the internal structure of the present invention.

Fig. 3 is a partially enlarged view of a portion a in fig. 2 according to the present invention.

Reference numerals:

101-tank body, 102-cover body, 103-feeding pipe, 104-discharging pipe, 105-deslagging pipe, 106-valve, 107-filtering component, 108-mounting ring, 109-mounting plate, 110-through hole, 111-filtering barrel component, 112-clear liquid zone, 113-turbid liquid zone, 114-flange plate, 115-outer barrel, 116-filtering inner core, 117-filtering hole, 118-upper cover, 119-pressing mechanism, 120-pressing plate, 121-spring, 122-guide rod, 123-guide hole and 124-locking nut.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the embodiments of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the embodiments of the present invention, it should be understood that the terms "length," "vertical," "horizontal," "top," "bottom," and the like are used in the orientation and positional relationship shown in the drawings for convenience in describing the embodiments of the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered as limiting the embodiments of the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

In embodiments of the invention, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature being in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. The first feature being "under," "beneath," and "under" the second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different configurations of embodiments of the invention. In order to simplify the disclosure of embodiments of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit embodiments of the present invention. Furthermore, embodiments of the present invention may repeat reference numerals and/or reference letters in the various examples for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Example one

Referring to fig. 1-3, the embodiment discloses a solid-free completion fluid workover fluid filtering device for oil and gas well drilling, which comprises a tank body 101 and a cover body 102 detachably connected with the tank body 101, wherein a feed pipe 103 and a discharge pipe 104 are arranged on the side surface of the tank body 101, a slag discharge pipe 105 is arranged at the bottom of the tank body 101, the discharge pipe 104 is positioned above the feed pipe 103, the bottom of the tank body 101 is in a conical structure, the slag discharge pipe 105 is arranged at the bottom of the tank body 101, and a valve 106 is arranged on the slag discharge pipe 105;

be provided with filter assembly 107 in jar body 101, filter assembly 107 includes:

the mounting ring 108 is fixedly arranged on the inner wall of the tank body 101;

the mounting plate 109 is detachably arranged on the mounting ring 108, and a plurality of through holes 110 are formed in the mounting plate 109;

each through hole 110 corresponds to one filter cartridge component 111;

the installation plate 109 divides the tank body 101 into an upper area and a lower area, a clear liquid area 112 is arranged above the installation plate 109, a turbid liquid area 113 is arranged below the installation plate 109, the filter cartridge assembly 111 is located in the clear liquid area 112, and workover fluid in the turbid liquid area 113 enters the filter cartridge assembly 111 from the lower side of the filter cartridge assembly 111 and enters the clear liquid area 112 after being filtered.

The utility model discloses a mounting panel 109 that sets up divides the jar body 101 into two upper and lower regions, simultaneously, installs filter cartridge subassembly 111 on mounting panel 109, and jar body 101 side is provided with inlet pipe 103 and discharging pipe 104, and the bottom is provided with scum pipe 105, and discharging pipe 104 is located the top of inlet pipe 103, and jar body 101 bottom is the toper structure, and scum pipe 105 sets up in jar body 101 bottom, and scum pipe 105 is last to be provided with valve 106; therefore, in practical use, the purposes of side liquid inlet, top liquid outlet and bottom slag discharge can be achieved, liquid enters the turbid liquid area 113 in the tank body 101 from the side surface of the tank body 101, at the moment, large-particle substances with large volume and heavy weight in the liquid move towards the bottom of the tank body 101 under the action of gravity and are accumulated at the bottom of the tank body 101, and the liquid flows out of the discharge pipe 104 in an overflow mode after being filtered by the filter cartridge assembly 111; at filterable in-process, can avoid the debris of large granule to block up cartridge filter subassembly 111, can solve the technical problem that large granule debris blockked up filter screen or filter core in the in-service use.

Simultaneously, jar body 101 is connected through detachable mode with lid 102, and the later stage of being convenient for is changed cartridge filter assembly 111.

In actual use, the tank 101 and the cover 102 are connected by a flange 114.

The filter cartridge assembly 111 comprises an outer cylinder 115 and a filter inner core 116 arranged in the outer cylinder 115, the filter inner core 116 is of a cylindrical structure, a plurality of filter holes 117 are formed in the outer cylinder 115, and the outer cylinder 115 is detachably connected with the mounting plate 109.

Wherein, the outer cylinder 115 is connected with the mounting plate 109 through screw threads.

The purpose of replacing the filtering inner core 116 can be realized after the outer barrel 115 is disassembled, and the operation is more convenient.

The liquid in the turbid liquid area 113 flows through the filtering inner core 116 and then enters the clear liquid area 112, so that the filtration of the workover fluid is realized;

the inner filter core 116 is a filter screen with a cylindrical structure, and the mesh number and the material of the filter screen can be determined according to the actual situation on site, which is not described herein again.

It should be noted that, in actual use, when the liquid in the drilling well is filtered after being discharged, the liquid has more impurities, such as silt, mud, organic salt, etc., and the corresponding filtering inner core 116 needs to be replaced in actual use, so that the particulate impurities in the solution are mainly realized, and the description is omitted here. Example two

The present embodiment is further optimized based on the first embodiment, in the present embodiment, the upper end of the outer cylinder 115 is opened and is provided with an upper cover 118, the upper cover 118 is in threaded connection with the outer cylinder 115, the upper cover 118 is provided with a pressing mechanism 119, the pressing mechanism 119 is used for pressing the upper end surface of the filtering inner core 116, the outer cylinder 115 is provided with a limiting part for preventing the filtering inner core 116 from moving, and the limiting part is used for preventing the filtering inner core 116 from moving downwards.

Thus, in actual use, when the filter core 116 is replaced, the filter core 116 can be taken out only by opening the cover body 102 and then opening the upper cover 118, and the replacement of the filter core 116 is more convenient.

The pressing mechanism 119 comprises a pressing plate 120, a spring 121 and a guide rod 122, the upper cover 118 is provided with a guide hole 123, the guide rod 122 is slidably arranged in the guide hole 123, the pressing plate 120 is connected with the guide rod 122, the spring 121 is sleeved on the guide rod 122, two ends of the spring 121 are respectively contacted with the upper cover 118 and the pressing plate 120, the guide plate is slidably connected with the outer cylinder 115 after extending to the outer cylinder 115, and the guide rod 122 is provided with a first limiting part.

In this embodiment, the guide rod 122 is provided with an external thread, and the first limiting portion is a lock nut 124 disposed on the guide rod 122 and engaged with the external thread.

The hold-down mechanism 119 that forms can compress tightly filtering inner core 116, will filter inner core 116 and place inside back at urceolus 115, is connected upper cover 118 and urceolus 115, and at this moment, can compress tightly filtering inner core 116 fixedly under the effect of spring 121, and when avoiding filtering, filtering inner core 116 removes the influence filter effect.

It should be noted that the utility model mainly provides a filter equipment, this filter equipment in the in-service use except being used for filtering the no solid phase completion fluid and the no solid phase workover fluid of well drilling usefulness, can also realize the filtration of impurity in the conventional solution, no longer gives unnecessary details here.

While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.

The above description is only exemplary of the present invention and should not be taken as limiting, and all changes, equivalents, and improvements made within the spirit and principles of the present invention should be understood as being included in the scope of the present invention.

Claims (7)

1. The utility model provides an oil gas well creeps into with no solid phase completion fluid workover fluid filter equipment, includes the jar body and can dismantle the lid of being connected with the jar body, its characterized in that:

the side surface of the tank body is provided with a feeding pipe and a discharging pipe, the bottom of the tank body is provided with a deslagging pipe, the discharging pipe is positioned above the feeding pipe, the bottom of the tank body is of a conical structure, the deslagging pipe is arranged at the bottom of the tank body, and the deslagging pipe is provided with a valve;

the internal filter assembly that is provided with of jar, filter assembly includes:

the mounting ring is fixedly arranged on the inner wall of the tank body;

the mounting plate is detachably arranged on the mounting ring and is provided with a plurality of through holes;

each through hole corresponds to one filter cylinder component;

wherein, the mounting panel is divided into two upper and lower regions with the jar body, and the mounting panel top is the clear liquid region, and the below is turbid liquid region, and filter cartridge assembly is located the clear liquid region, and the workover fluid in the turbid liquid region gets into filter cartridge assembly from filter cartridge assembly below and filters the back and gets into in the clear liquid region.

2. The solid-free completion fluid workover fluid filter device for oil and gas well drilling according to claim 1, wherein: the tank body is connected with the cover body through a flange plate.

3. The solid-free completion fluid workover fluid filter device for oil and gas well drilling according to claim 1, wherein: the cartridge filter subassembly includes the urceolus and sets up the filtration inner core in the urceolus, filters the inner core and is cylindric structure, sets up a plurality of filtration pores on the urceolus, and the urceolus can be dismantled with the mounting panel and be connected.

4. The solid-free completion fluid workover fluid filter device for oil and gas well drilling according to claim 3, wherein: the outer cylinder is connected with the mounting plate through threads.

5. The solid-free completion fluid workover fluid filter device for oil and gas well drilling according to claim 3, wherein: the urceolus upper end opening just sets and has set the upper cover, and upper cover and urceolus threaded connection cover on and be provided with hold-down mechanism, and hold-down mechanism is used for pressing at the filtration inner core up end, is provided with the spacing portion that prevents to filter the inner core and remove in the urceolus.

6. The solid-free completion fluid workover fluid filter device for oil and gas well drilling according to claim 5, wherein: the pressing mechanism comprises a pressing plate, a spring and a guide rod, a guide hole is formed in the upper cover, the guide rod is arranged in the guide hole in a sliding mode, the pressing plate is connected with the guide rod, the spring is sleeved on the guide rod, two ends of the spring are respectively in contact with the upper cover and the pressing plate, the guide plate is in sliding connection with the outer barrel after extending to the outer barrel, and a first limiting portion is arranged on the guide rod.

7. The solid-free completion fluid workover fluid filter device for oil and gas well drilling according to claim 6, wherein: the guide rod is provided with an external thread, and the first limiting part is a locking nut which is arranged on the guide rod and matched with the external thread.

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