CN203499606U - Oil inlet bin for drilling fluid skimming tank - Google Patents
Oil inlet bin for drilling fluid skimming tank Download PDFInfo
- Publication number
- CN203499606U CN203499606U CN201320583521.5U CN201320583521U CN203499606U CN 203499606 U CN203499606 U CN 203499606U CN 201320583521 U CN201320583521 U CN 201320583521U CN 203499606 U CN203499606 U CN 203499606U
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- oil
- drilling fluid
- feed storehouse
- corrugated sheet
- filter
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Abstract
The utility model discloses an oil inlet bin for a drilling fluid skimming tank. The oil inlet bin is arranged at an entrance of a tank body and is communicated with an oil inlet of the tank body; a filter plate is disposed in the oil inlet bin and is provided with holes uniformly; a fluid inflow surface of the filter plate is provided with a filter screen; and the periphery of the bottom of the oil inlet bin is provided with inclined blocks used for sealing dead angles of the bottom of the oil inlet bin. The oil inlet bin can be used for stabilizing fluid and flow state, eliminating or mitigating eddy in a flow filed and filtrating residue in drilling fluid.
Description
Technical field
The utility model relates to a kind of oil-feed storehouse that is applied to drilling fluid skimmer tank, sneaks into the oily skim of drilling fluid for oil and gas well drilling process, belongs to the design and manufacturing technology field of drilling equipment.
Background technology
In implementing the drilling process of oil or natural gas, in order to make to there is good lubrication in drilling fluid, usually can use oil base drilling fluid, when drilling well proceeds to underground some oil-bearing layer, underground oil also can be along with drilling fluid is together brought to ground, and sneak in drilling fluid, if these oil of sneaking in drilling fluid are got rid of not in time, will be again along with drilling fluid is injected underground by slush pump, then also have more underground crude oil and enter drilling fluid, after reaching certain quantity, will destroy the performance of drilling fluid, finally may cause drilling fluid can not well complete rheological characteristic and the shear effect of drilling process needs, and drilling well is caused to serious harm.In order to address this problem, the way adopting at present is mainly processed destroyed drilling fluid, then add the material lacking, also the mechanical oil extraction of employing having and remove deimpurity equipment, as: the patent of CN200710118618.8 discloses a kind of drilling fluid treatment system, comprise: except silt particle portion, degasification portion and composite portion, the drilling fluid returning out from well head is removed respectively after landwaste and natural gas through removing silt particle portion and degasification portion successively, enter ash material and aqueous chemical medicament composite portion is composite; The patent of CN201120476036.9 disclose a kind of sledge charge of oil water on the spot eliminator water return and mix device, be applied to oil field well water filling.Also the employing having oil, gas, water, solid four-phase separator; The shortcoming of prior art is:
1. technology as disclosed in patent No. CN200710118618.8 can only, for to the gentle separation of the solid of drilling fluid, can not realize being blended in the oily separation in drilling fluid.
2. the patented technology that the patent No. is CN201120476036.9 is to be applied to oil gas field underground water-injection, can not be for the separation of drilling fluid.
3. the shortcoming of other the mechanical type drilling fluid eliminator for oil/gas drilling scene is: because existing eliminator has together the filter plate with mesh substantially in separated link, and the dividing plate of one water-oil separating, because the size of mesh is fixed, mesh too conference passes through landwaste less in drilling fluid together with oil, therefore can cause the crude oil separation being blended in drilling fluid not thorough, separative efficiency is low, and flow through in the crude oil of dividing plate and also have a certain amount of drilling fluid, therefore cause crude oil to collect inconvenience.
Summary of the invention
The purpose of this utility model is the problem of the crude oil in can not effective separated drilling fluid for prior art, a kind of oil-feed storehouse that is applied to drilling fluid skimmer tank is provided, the utility model can play a part stabilized fluid and fluidised form, also play the phenomenon of eliminating or slowing down eddy current in flow field, the effect of filtering in addition residue in drilling fluid.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of oil-feed storehouse that is applied to drilling fluid skimmer tank, it is characterized in that: described oil-feed storehouse is arranged on the entrance of tank body, described oil-feed storehouse is communicated with the oil-in arranging on tank body, oil-feed is provided with filter in storehouse, on described filter, be evenly equipped with eyelet, the liquid inflow face of filter is provided with screen pack, and the bottom surrounding in described oil-feed storehouse is provided with for sealing the skewback at dead angle, bottom, oil-feed storehouse.
The aperture of described eyelet is 90 mm-110mm, and pitch of holes is 180 mm-220mm, and the distance of eyelet and filter bottom is at least 650mm.
Described oil-feed has ash gate on storehouse.
After described filter, be provided with eliminator, described eliminator is comprised of the multicomponent arranging along the flow direction structure of disembarking, described separating mechanism comprises a plurality of corrugated sheets, a plurality of corrugated sheets are layered arrangement, and the crest on last layer corrugated sheet is corresponding with the crest on lower one deck corrugated sheet, trough on last layer corrugated sheet is corresponding with the trough on lower one deck corrugated sheet, and the ripple on corrugated sheet is along flow direction setting.
Described each corrugated sheet and horizontal direction are 45° angle; Or each corrugated sheet is horizontally disposed with.
Spacing between described adjacent two corrugated sheets is identical.
Described corrugated sheet two ends are connected on joint pin, and joint pin is sleeved on fixed leg, and fixed leg is arranged on panel seat, and described panel seat one end to the thickness of the other end reduces gradually.
Employing the utility model has the advantage of:
One, in the utility model, the bottom surrounding in oil-feed storehouse is provided with skewback, can play the dead angle of shutting bottom surface, front end oil-feed storehouse surrounding, and dregs can not be assembled at four dead angles of tank body, convenient flushing cleared up, and can play and prevent that dregs are deposited in the effect in corner, oil-feed storehouse.
Two, in the utility model, oil-feed is provided with filter in storehouse, on described filter, be evenly equipped with eyelet, the liquid inflow face of filter is provided with screen pack, this structure can play a part stabilized fluid and fluidised form, also play the phenomenon of eliminating or slowing down eddy current in flow field, the effect of filtering in addition residue in drilling fluid; Oil-feed has ash gate on storehouse, can open where necessary, makes staff enter the dregs on removing ground, oil-feed storehouse.
Three, in the utility model, the aperture of described eyelet is 90 mm-110mm, pitch of holes is 180 mm-220mm, and the distance of eyelet and filter bottom is at least 650mm, the eyelet that adopts this mode to arrange, can effectively be rectified into two dimensional surface relatively uniformly and flow, can obviously improve the flow behavior of equipment; A baffle plate can be played in filter lower end, prevents that drilling liquid flow from pouring eliminator by settled residue, avoids making it to stop up, and middle eyelet 15 can play well and be uniformly distributed current.
Four, in the utility model, eliminator is comprised of separating mechanism, separating mechanism is corrugated board structures, because corrugated sheet surface is oleophylic, therefore, first on corrugated sheet surface, form one deck oil film, along with the continuous process of drilling liquid flow, oil film is thickeied gradually, after forming a certain size oil droplet by oil surface tension, be subject to the impulse force of the buoyancy of oil droplet own and drilling liquid flow that oil droplet is come off, with drilling liquid flow, through oil slick hole, crest place, float; Again because corrugated sheet is waveform, its tortuous passageway providing is drilling liquid flow to be similar to sinusoidal wave state to flow, and flows to and constantly changes, increased the collision probability between oil droplet, impel little oil droplet to become large, accelerate the ascent rate of oil droplet, reach the oil object separated with drilling fluid.
Five, in the utility model, described corrugated sheet two ends are connected on joint pin, joint pin is sleeved on fixed leg, fixed leg is arranged on panel seat, and described panel seat one end to the thickness of the other end reduces gradually, panel seat is used for supporting corrugated sheet, and corrugated sheet setting from high to low can reach and make the free-pouring object of mixed liquor.
Accompanying drawing explanation
Fig. 1 is that the utility model is applied in the general assembly structural representation in skimmer tank
Fig. 2 filter structure for amplifying of the present utility model schematic diagram
Fig. 3 the utility model eliminator structure for amplifying schematic diagram
Every layer of connection enlarged diagram of eliminator in Fig. 4 the utility model Fig. 3
In Fig. 5 the utility model eliminator, corrugated sheet and horizontal direction are 45° angle structure for amplifying schematic diagram
Every layer in Fig. 6 the utility model Fig. 5 connects enlarged diagram
The oil trap enlarged diagram of Fig. 7 skimmer tank
The oil trap side enlarged diagram of Fig. 8 skimmer tank
In figure, be labeled as: 1, skewback, 2, ash gate, 3, oil-in, 4, tank body, 5, filter, 6, eliminator, 7, oil trap, 8, oil baffle, 9, cantilevered submerged pump, 10, the floating only valve of liquid level, 11, discharge pipe, 12, explosion-proof electronic box, 13, base, 14, panel seat, 15, eyelet, 16, corrugated sheet, 17, oil exit pipe, 18, support.
The specific embodiment
Embodiment 1
A kind of oil-feed storehouse that is applied to drilling fluid skimmer tank, described oil-feed storehouse is arranged on the entrance of tank body 4, described oil-feed storehouse is communicated with the oil-in 3 arranging on tank body 4, in oil-feed storehouse, be provided with filter 5, on described filter 5, be evenly equipped with eyelet 15, the liquid inflow face of filter 5 is provided with screen pack, and the bottom surrounding in described oil-feed storehouse is provided with for sealing the skewback 1 at dead angle, bottom, oil-feed storehouse, and described oil-feed has ash gate 2 on storehouse.
In the utility model, the aperture of described eyelet 15 is 90 mm-110mm, and pitch of holes is 180 mm-220mm, and eyelet 15 is at least 650mm with the distance of filter 5 bottoms.
Filter 5 primary structures in the utility model are as Fig. 2, and filter 5 not only plays a role in filtering, and also play a baffle plate and current stabilization effect simultaneously.2.3m as wide in filter 5, high 2.5m, thick 0.1m, aperture 100mm, pitch of holes 200mm, uniform, and cover one deck screen pack at inflow face.In the lower end of plate, leave certain space (650mm) and do not punch, can play a baffle plate, prevent that drilling liquid flow from pouring eliminator by settled residue, avoids making its obstruction.Middle eyelet 15 can play well and be uniformly distributed current.
Filter 5 can flow the complex three-dimensional before filter 5, is effectively rectified into two dimensional surface relatively uniformly and flows, and can obviously improve the flow behavior of equipment.Although also there is to some extent secondary vortex flow phenomenon in flow field, reflux and substantially to eliminate with air-teturning mixed phenomenon, and filter 5 has simple in structurely, compactness, is convenient to the feature of manufacturing.
After described filter 5, be provided with eliminator 3, described eliminator 6 is comprised of the multicomponent arranging along the flow direction structure of disembarking, be the horizontally disposed structural representation of corrugated sheet as shown in Figures 3 and 4, described separating mechanism comprises a plurality of corrugated sheets 16, a plurality of corrugated sheets 16 are layered arrangement, and the crest on last layer corrugated sheet is corresponding with the crest on lower one deck corrugated sheet, trough on last layer corrugated sheet is corresponding with the trough on lower one deck corrugated sheet, and the ripple on corrugated sheet 16 is along flow direction setting.That is to say, make liquid can flow through successively crest and the trough on corrugated sheet 16, or flow through successively trough and crest on corrugated sheet 16.
In the utility model, the spacing between described adjacent two corrugated sheets 16 is identical.Described corrugated sheet 16 two ends are connected on joint pin, and joint pin is sleeved on fixed leg, and fixed leg is arranged on panel seat 14, and described panel seat 14 one end to the thickness of the other end reduces gradually.
As shown in Figure 4, between corrugated sheet 16, with supporting section, connect, making its spacing is 6mm, the long 1120mm of corrugated sheet, wide 496mm, spacing 50mm between every group of separating mechanism.
This eliminator adopts the Corrugated Plates Coalescing Oil-water Separation Technology, is Gravity Separation and coarse separation to be incorporated into the new oil water separation structure of one, has energy consumption low, and separative efficiency is high, the features such as equipment is simple, compact conformation.
Separation principle: the separative efficiency of oil droplet is only relevant with oil droplet buoyance lift area with physical property, oil droplet size, the treating capacity of profit after deliberation, in the situation that treating capacity is certain, the main method that improves oil droplet separative efficiency has thus: increase the alternate density contrast of profit two; Increase the diameter of buoyance lift oil droplet; Increase the buoyance lift area of oil droplet; Reduce aqueous viscosity.
By shortening oil droplet buoyance lift height, improve oil droplet separative efficiency, profit mixed phase, in the interior flow process of eliminator 6, because flow section constantly changes, thereby increases the probability of oil droplet collision coalescence simultaneously, the continuous coalescent change in motion process of little oil droplet is large, by absorption, the effect such as coalescent, at the soffit of corrugated sheet, form oil film, become and move along plate face, come off, water sedimentation under Action of Gravity Field, the upper surface of arrival lower floor corrugated sheet, has finally realized water-oil separating faster.
Embodiment 2
The present embodiment is for to be applied to describe in skimmer tank to the utility model:
A drilling fluid skimmer tank, comprises tank body 4, and described tank body 4 is interior is disposed with oil-feed storehouse, separation bin and discharge storehouse along flow direction; Oil-feed storehouse is communicated with the oil-in arranging on tank body 4, and oil-feed storehouse is communicated with separation bin, and separation bin is communicated with discharge storehouse, discharges storehouse and is communicated with the discharge pipe 11 arranging on tank body 4.
Described oil-feed storehouse is communicated with the oil-in 3 arranging on tank body 4, is provided with filter 5 in oil-feed storehouse, on described filter 5, is evenly equipped with eyelet 15, and the liquid inflow face of filter 5 is provided with screen pack, and oil-feed storehouse is communicated with separation bin by filter 5.This is optimal way, and the structure in oil-feed storehouse is not limited to this.
In described separation bin, along flow direction, be disposed with eliminator 6, oil trap 7 and oil baffle 8, described oil trap 7 is arranged on oil baffle 8, oil trap 7 is connected with oil exit pipe 17, oil baffle 8 upper ends are fixedly connected on separation bin, gap between lower end and separation bin bottom forms liquid communication passage, and separation bin is communicated with discharge storehouse by liquid communication passage.This is optimal way, and the structure of separation bin is not limited to this.
In described discharge storehouse, along flow direction, be provided with cantilevered submerged pump 9, liquid level floating only valve 10 and discharge pipe 11, the floating only valve 10 of liquid level is for controlling the startup of cantilevered submerged pump 9 and stopping, and cantilevered submerged pump 9 is arranged on discharges the bottom in storehouse and by pipeline, be connected to the upper end of discharging storehouse.This is optimal way, and the structure of discharging storehouse is not limited to this.
Further, the bottom surrounding in described oil-feed storehouse is provided with for sealing the skewback 1 at dead angle, bottom, oil-feed storehouse, has ash gate 2 on oil-feed storehouse.
The aperture of described eyelet 15 is 90mm-110mm, and pitch of holes is 180mm-220mm, and eyelet 15 is at least 650mm with the distance of filter 5 bottoms.
Described eliminator 6 is comprised of the multicomponent arranging along the flow direction structure of disembarking, described separating mechanism comprises a plurality of corrugated sheets 16, a plurality of corrugated sheets are layered arrangement, and the crest on last layer corrugated sheet is corresponding with the crest on lower one deck corrugated sheet, trough on last layer corrugated sheet is corresponding with the trough on lower one deck corrugated sheet, and the ripple on corrugated sheet 16 is along flow direction setting.
Spacing between described adjacent two corrugated sheets is identical.Described corrugated sheet 16 two ends are connected on joint pin, and joint pin is sleeved on fixed leg, and fixed leg is arranged on panel seat 14, and described panel seat 14 one end to the thickness of the other end reduces gradually.
Embodiment 3
The present embodiment is for being applied to describe in skimmer tank to the utility model by reference to the accompanying drawings:
Skimmer tank comprises oil-feed storehouse, separation bin and discharge storehouse, and oil-feed storehouse, separation bin and discharge storehouse are arranged in tank body 4, and described tank body 4 is rectangle enclosed construction, is provided with base 13 below tank body 4, and four jiaos of base 13 are provided with hanger.
Oil-feed is provided with in storehouse: oil-in 3, filter 5, ash gate 2 and skewback 1; Skewback 1 is arranged on the surrounding of bottom surface, oil-feed storehouse; Ash gate 2 is arranged on oil-feed storehouse; Oil-in 3 is arranged on the front end centre position of tank body, with oil, connects the ninth of the ten Heavenly Stems, and outside is connected with input pipe.Filter 5 is arranged between tank body 4 front end facade plates and eliminator 6, has eyelet 15 on filter 5, and thickness of slab 10cm lays one deck filter screen in the one side that faces toward oil-in above of filter 5;
In separation bin, be provided with: eliminator 6, oil trap 7, oil baffle 8 and panel seat 14; Eliminator 6 is corrugated board structures, is arranged on the centre of tank body, and eliminator 6 forms by organizing corrugated board structures more, is provided with panel seat 14 below corrugated board structures eliminator 6, and panel seat 14 is setting from high to low from filter 5 one end backward; Oil baffle 8 is arranged on the front portion, rear end of tank body, and upper end is connected with the upper face of tank body, and lower end is unsettled; Oil trap 7 is arranged on the middle part of oil baffle 8.
Discharge in storehouse and be provided with: cantilevered submerged pump 9, liquid level floating only valve 10, discharge pipe 11, explosion-proof electronic box 12; Cantilevered submerged pump 9 is arranged on the bottom surface, rear end of tank body, the upper end plate by device for cleaning pipeline to tank body; The floating only valve 10 of liquid level is arranged in the explosion-proof electronic box 12 of tank body rear end; Discharge pipe 11 is arranged on the middle part of tank body rear end riser.
The operating principle of skimmer tank and implementation process:
The drilling fluid returning out from well head to oil-feed storehouse, after the filtration of filter plate 5, enters eliminator through oil pipeline that (oil-in 3) connects in the ninth of the ten Heavenly Stems.And the solid phase residue precipitating in oil-feed storehouse is when off working state, from ash gate 2, clear up away, from filter 5 filters drilling fluid enter separation bin, in separation bin, slowly, stably flow, larger former oil particles occurs separated with drilling fluid.First separated crude oil particle aggregation, and float up to drilling fluid surface, cross separated dress device 6, enter and discharge storehouse; Eliminator 6 is comprised of the glass fiber reinforced plastic that contains skewed slot or the stainless steel wave card 16 of solid matter, and further steady flow makes former oil particles produce speed upwards simultaneously, promotes that crude oil particulate is further separated with drilling fluid; Oil baffle 8 can be little by some, the former oil particles gear floating to certain altitude carries out secondary settlement in separation bin, makes it to assemble, float and obtain separation; Oil trap 7 can be collected the crude oil of having separated and discharge by oil exit pipe 17 when operating fluid level; The drilling fluid of oil removing enters discharge storehouse from the liquid communication passage of oil baffle 8 bottoms; If discharge the circulation of drilling fluid jar liquid surface of the relative drilling team of liquid level in storehouse, have enough differences in height, drilling fluid can flow directly into by discharge pipe 11 well-drilling liquid circulation pot of drilling team; If liquid level is poor to be not enough to form effectively and to flow, can start cantilevered submerged pump 9 and drilling fluid be pumped into the well-drilling liquid circulation pot of drilling team, now need liquid level float-controlled valve 10 control the startup of cantilevered submerged pumps 9 and stop, keeping liquid level stabilizing.
The present embodiment and above-mentioned enforcement are basic identical, and the main distinction is as illustrated in Figures 5 and 6, and described each corrugated sheet and horizontal direction are 45° angle.
Claims (7)
1. an oil-feed storehouse that is applied to drilling fluid skimmer tank, it is characterized in that: described oil-feed storehouse is arranged on the entrance of tank body (4), described oil-feed storehouse is communicated with the upper oil-in (3) arranging of tank body (4), in oil-feed storehouse, be provided with filter (5), on described filter (5), be evenly equipped with eyelet (15), the liquid inflow face of filter (5) is provided with screen pack, and the bottom surrounding in described oil-feed storehouse is provided with for sealing the skewback (1) at dead angle, bottom, oil-feed storehouse.
2. the oil-feed storehouse that is applied to drilling fluid skimmer tank according to claim 1, it is characterized in that: the aperture of described eyelet (15) is 90 mm-110mm, pitch of holes is 180 mm-220mm, and eyelet (15) is at least 650mm with the distance of filter (5) bottom.
3. the oil-feed storehouse that is applied to drilling fluid skimmer tank according to claim 1 and 2, is characterized in that: on described oil-feed storehouse, have ash gate (2).
4. the oil-feed storehouse that is applied to drilling fluid skimmer tank according to claim 1, it is characterized in that: after described filter (5), be provided with eliminator (6), described eliminator (6) is comprised of the multicomponent arranging along the flow direction structure of disembarking, described separating mechanism comprises a plurality of corrugated sheets (16), a plurality of corrugated sheets (16) are layered arrangement, and the crest on last layer corrugated sheet is corresponding with the crest on lower one deck corrugated sheet, trough on last layer corrugated sheet is corresponding with the trough on lower one deck corrugated sheet, and the ripple on corrugated sheet (16) is along flow direction setting.
5. the oil-feed storehouse that is applied to drilling fluid skimmer tank according to claim 4, is characterized in that: described each corrugated sheet (16) is 45° angle with horizontal direction; Or each corrugated sheet (16) is horizontally disposed with.
6. according to the oil-feed storehouse that is applied to drilling fluid skimmer tank described in claim 4 or 5, it is characterized in that: the spacing between described adjacent two corrugated sheets (16) is identical.
7. the oil-feed storehouse that is applied to drilling fluid skimmer tank according to claim 6, it is characterized in that: described corrugated sheet (16) two ends are connected on joint pin, joint pin is sleeved on fixed leg, it is upper that fixed leg is arranged on panel seat (14), and described panel seat (14) one end to the thickness of the other end reduces gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320583521.5U CN203499606U (en) | 2013-09-22 | 2013-09-22 | Oil inlet bin for drilling fluid skimming tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320583521.5U CN203499606U (en) | 2013-09-22 | 2013-09-22 | Oil inlet bin for drilling fluid skimming tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203499606U true CN203499606U (en) | 2014-03-26 |
Family
ID=50330595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320583521.5U Expired - Lifetime CN203499606U (en) | 2013-09-22 | 2013-09-22 | Oil inlet bin for drilling fluid skimming tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203499606U (en) |
-
2013
- 2013-09-22 CN CN201320583521.5U patent/CN203499606U/en not_active Expired - Lifetime
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Granted publication date: 20140326 |