CN203559829U - Liquid feeding mechanism of four-phase separator for drilling - Google Patents
Liquid feeding mechanism of four-phase separator for drilling Download PDFInfo
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- CN203559829U CN203559829U CN201320707215.8U CN201320707215U CN203559829U CN 203559829 U CN203559829 U CN 203559829U CN 201320707215 U CN201320707215 U CN 201320707215U CN 203559829 U CN203559829 U CN 203559829U
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- 239000007788 liquid Substances 0.000 title claims abstract description 36
- 230000007246 mechanism Effects 0.000 title claims abstract description 33
- 239000012071 phase Substances 0.000 claims abstract description 127
- 239000012530 fluid Substances 0.000 claims abstract description 72
- 239000004576 sand Substances 0.000 claims abstract description 37
- 238000000926 separation method Methods 0.000 claims abstract description 19
- 230000004087 circulation Effects 0.000 claims abstract description 17
- 239000007790 solid phase Substances 0.000 claims abstract description 11
- 238000012544 monitoring process Methods 0.000 claims description 7
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- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
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- 125000004122 cyclic group Chemical group 0.000 description 2
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- 229910052717 sulfur Inorganic materials 0.000 description 2
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- 230000009471 action Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
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- 238000002347 injection Methods 0.000 description 1
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- Pipeline Systems (AREA)
Abstract
The utility model discloses a liquid feeding mechanism of a four-phase separator for drilling. A drilling liquid in a first liquid feeding pipeline circulates during normal operation of the four-phase separator, and a drilling liquid in a standby liquid feed pipeline circulates together with the first liquid feed pipeline when the pressure in the first liquid feed pipeline exceeds a set value; a third liquid feed pipeline is used for a drilling fluid which enters a sand storage tank after separation by a solid-phase cabin of the four-phase separator to be recovered again and flow into the four-phase separator for circulation; one end of a recovery pipeline is connected to a liquid outlet of the four-phase separator, and the other end is connected to liquid inlets of the first liquid feed pipeline and the standby liquid feed pipeline; and when the four-phase separator finishes operation normally, the four-phase separator, the recovery pipeline, the first liquid feed pipeline and the standby liquid feed pipeline form a drilling liquid circulation path. According to the liquid feeding mechanism, the drilling liquid returned from a well can be guided into the four-phase separator, so that influence on normal operation of the four-phase separator due to sudden flow or pressure increase or blockage of the liquid feeding pipe is avoided, and residual drilling liquids in the sand storage tank can be recovered for recirculation.
Description
Technical field
The utility model relates to four-phase separator feed liquor mechanism for a kind of drilling well, belongs to oil drilling under balance pressure drilling four-phase separator equipment, is mainly used for structure and control method thereof with the incoming-stream manifold of four-phase separator in drilling well.
Background technology
Under balance pressure drilling refers to that the pressure of drilling fluid fluid column in drilling process is less than formation fluid pressure, and formation fluid will enter well and return to ground.Under-balanced drilling technology has well solved the problem to formation contaminant in conventional drilling technology, and can improve the plurality of advantages such as oil and gas production, therefore has wide market prospects at home and abroad.Under balance pressure drilling need to be carried out separation to returning the drilling fluid that contains formation fluid to ground, to make drilling fluid recover its performance, again recycles.It is at present domestic that what generally adopt is the configuration of gas-liquid two-phase separator, skimmer tank, vibrosieve, wherein skimmer tank and vibrosieve are unenclosed construction, if contain hydrogen sulfide or volatile hydrocarbons in the drilling fluid that contains formation fluid returning out, will cause serious threat to well site personnel and surrounding environment, therefore the reservoir that, at present at home hydrogen sulfide content is greater than to 50ppm can't carry out under-balance drilling operation.
In order to meet the needs that high sulfur-bearing reservoir carried out to under-balance drilling operation, need drilling fluid to obtain in confined conditions separation, separated refuse and hazardous substances are dealt carefully with, so closed system is that must being equipped with of high sulfur-bearing formation enforcement under-balance drilling operation is standby.Four-phase separator is the core apparatus of closed system, the oil, the gas, liquid, solid that return out in the drilling fluid on ground can be carried out to effective separation.At present, some external oil companies have developed four-phase separator successfully carried out on-the-spot use in succession, but domestic research to four-phase separator is scarcely out of swaddling-clothes.
In addition, China Patent No. " 200920078576.4 " discloses a kind of drilling fluid four-phase separator, open day is on October 21st, 2009, it comprises housing and separating mechanism, the Gu Cang that removes of separating mechanism is arranged on the front portion in housing, and liquid, gas separation bin and oil storage storehouse are separately positioned on middle part and the rear portion in housing.
But also there is following deficiency in existing drilling fluid four-phase separator: in under-balance drilling operation, flow and pressure unstable from the drilling fluid that returns out in well, and contain a large amount of landwaste, after drilling well finishes, the landwaste in pipeline is cleared up to comparatively trouble, simultaneously, from four-phase separator, enter landwaste in sand tank also with a certain amount of remaining drilling fluid, need special equipment to reclaim.
And, for meeting the effective separation condition of equipment to each phase medium in drilling fluid, by theory, calculate, the volume of four-phase separator is larger, be that tank body size is larger, if mechanism arrangement such as the pump valve of a supporting mounting structure complexity of while and pipe-line systems, the volume of complete equipment and weight will increase more, thereby will surpass the domestic strict standard for road transport, and make the transportation problem of equipment comparatively difficult.Simultaneously, whole system pump valve mechanism is more, and pipe-line system complex structure, if one of them link breaks down, dismounting complete equipment is keeped in repair, therefore safeguard very inconvenience, and huge equipment will take larger situ of drilling well space, especially for the limited situ of drilling well space layout in area, mountain region brings difficulty.
Summary of the invention
The purpose of this utility model is to overcome existing drilling well four-phase separator above shortcomings, and four-phase separator feed liquor mechanism and control method for a kind of drilling well is provided.The utility model can be by the importing four-phase separator tank of the drilling fluid steady ordered returning out in well, prevent the normal operation because of flow or pressure increase suddenly or feed tube congestion affects four-phase separator, and can reclaim remaining drilling fluid in sand tank and again participate in circulation, saved cost.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A four-phase separator feed liquor mechanism for drilling well, is characterized in that: comprise the first feed liquor pipeline, standby feed liquor pipeline, the 3rd feed liquor pipeline and reclaim line; Described the first feed liquor pipeline circulates when four-phase separator normally moves; The pressure of described standby feed liquor pipeline in the first feed liquor pipeline surpasses while setting value and the first feed liquor pipeline circulates simultaneously; The 3rd feed liquor pipeline flow into for the drilling fluid that enters sand tank after the cabin separation of four-phase separator solid phase reclaims again the pipeline circulating in four-phase separator; Described reclaim line one end is connected to the leakage fluid dram of four-phase separator, the other end is connected to the inlet of the first feed liquor pipeline and standby feed liquor pipeline, after four-phase separator has normally moved, four-phase separator, reclaim line, the first feed liquor pipeline and standby feed liquor pipeline form circulation of drilling fluid path.
The utility model also comprises skid structure, and described skid structure comprises feed tube prying body and pump valve prying body, and the feed liquor pipeline of described four-phase separator is arranged on feed tube prying body, and the pump of four-phase separator and control valve are arranged on pump valve prying body; Four-phase separator bottom is connected with pump valve prying body, and a side is connected with feed tube prying body.
Described the first feed liquor pipeline comprises the first horizontal pipeline section pipeline section vertical with first, and the first horizontal pipeline section is connected with the first vertical pipeline section by the first four-way structure, and the inlet of the first horizontal pipeline section is connected with feed tube, and the first vertical pipeline section is connected to four-phase separator.
Described standby feed liquor pipeline comprises standby vertical pipeline section, and standby vertical pipeline section one end is connected to four-phase separator, and the other end is connected with standby four-way structure, and standby four-way structure is communicated with the first four-way structure.
Described the 3rd feed liquor pipeline comprises the 3rd vertical pipeline section, the 3rd vertical pipeline section one end is connected to four-phase separator, and the other end is connected with the 3rd four-way structure, and the 3rd four-way structure is connected to sand tank by pipeline, and sand tank is connected to four-phase separator solid phase cabin by pipeline, form circulation line.
Leakage fluid dram discharge opeing direction along four-phase separator in described reclaim line is disposed with reclaim line control valve, reclaim line pump and reclaim line ball-and-seat.
On the first horizontal pipeline section of described the first feed liquor pipeline, be provided with the first horizontal pipeline section control valve and pressure sensor, the other end of reclaim line is connected on the first horizontal pipeline section between the first four-way structure and the first horizontal pipeline section control valve; On the first vertical pipeline section, be provided with the first vertical pipeline section control valve and flow meter.
After described standby feed liquor pipeline is in parallel with the 3rd feed liquor pipeline, be connected to four-phase separator, on the standby vertical pipeline section of standby feed liquor pipeline, be provided with standby vertical pipeline section control valve and flow meter.
On the 3rd vertical pipeline section of described the 3rd feed liquor pipeline, be provided with the 3rd vertical pipeline section control valve and flow meter, on the pipeline being connected with sand tank, be provided with pipeline ball-and-seat, pipeline pump and pipeline control valve, on sand tank, be provided with liquid level monitoring arrangement.
Described four-phase separator is connected with the pump valve prying body of bottom by flange, and a side is connected with feed tube prying body by flange, and respectively by alignment pin by four-phase separator be connected with pump valve prying body, pump valve prying body is connected with feed tube prying body.
Employing the utility model has the advantage of:
One, the utility model, by the first feed liquor pipeline and standby feed liquor pipeline, can, by the importing four-phase separator of the drilling fluid steady ordered returning out in well, prevent the normal operation because of flow or pressure increase suddenly or feed tube congestion affects four-phase separator; By the 3rd feed liquor pipeline, the remaining drilling fluid that can reclaim in sand tank participates in circulation again, has saved cost.
Two, the utility model is innovated with the incoming-stream manifold of four-phase separator under balance pressure drilling, and its control method is improved, the decapacitation of feed liquor mechanism enters the drilling fluid water conservancy diversion returning out in well under normal circumstances in four-phase separator tank to carry out separation, can also be when the first feed liquor pipeline inner pressure or flow increase suddenly etc. make auto-adjustment control under emergency case, enable standby feed liquor pipeline, reduce the pressure of main feed liquor pipeline, ensured the safety of equipment operation.
Three, the sand tank raffinate in the utility model reclaims i.e. the 3rd feed liquor pipeline of feed liquor pipeline, and the remaining drilling fluid entering after the separation of solid phase cabin in sand tank is pumped into separation in tank again, has reduced the loss of drilling fluid, has saved cost.
Four, this mechanism, in the vertical pipeline section of feed liquor pipeline and the four-way structure of horizontal pipeline section design, has alleviated drilling fluid fluid to the erosion of pipeline and can after termination of pumping, can easily landwaste have been got rid of; Feed liquor pipeline and drain line are controlled to break-make by control valve simultaneously, can after termination of pumping, with the clean drilling fluid that does not contain landwaste, to pipe-line system, carry out flushing circulation, the landwaste that is deposited on feed liquor pipeline vertical tube section is poured in tank, well solved landwaste in vertical pipeline section bottom deposition, compacting and obstruction, the problem of cause and suppress pump, burning the harm such as pump, guarantees the safety of four-phase separator operation next time.
Five, the utility model carries out rational modification to the feed liquor mechanism of four-phase separator, in drilling process, the fluid entering in tank is carried out to flow and pressure Real-Time Monitoring, by the switch of real-time each pump valve of control, make in the inflow tank body of drilling fluid steady ordered, for four-phase separator carries out effective separation to drilling fluid, provide reliable prerequisite.
Six, the utility model can enter remaining drilling fluid reclamation in sand tank participation circulation in tank by the design of bypass line, saved operating cost, by the clean drilling fluid that circulates, rinse and four-way structure design, can solve landwaste in vertical pipeline section and clear up difficult problem.
Seven, in the utility model, be positioned at the switch situation that the large young pathbreaker of pressure sensor institute measuring pressure on the first feed liquor pipeline determines each pipeline middle part sub valve, and the flow of every feed liquor pipeline of flowmeter survey is installed, clean drilling fluid after four-phase separator separation is imported to feed liquor main line in the mode of cyclic flusher, prevent that landwaste from depositing in a large number at the vertical pipeline section of incoming-stream manifold.
Eight, the utility model is designed to four-way structure by the intersection of the vertical pipeline section of input duct and horizontal pipeline section, after finishing, drilling well four-way bottom blind plate can be opened to the remaining landwaste of cleaning deposition, the feed liquor amount of four-phase separator can effectively be controlled and monitor to this structure automatically, for the safe operation of four-phase separator provides guarantee, make drilling fluid can the inflow tank body of steady ordered in, in conjunction with the 3rd feed liquor pipeline, can realize the recovery of remaining drilling fluid in sand tank, there is the features such as simple and reasonable, safe and reliable, economic saving.
Nine, in the utility model, described feed tube is arranged on feed tube prying body, and pump and control valve are arranged on pump valve prying body; Four-phase separator bottom is connected with pump valve prying body, and a side is connected with feed tube prying body; Described four-phase separator is connected with the pump valve prying body of bottom by flange further, and a side is connected with feed tube prying body by flange, and by alignment pin, four-phase separator, pump valve prying body and feed tube prying body is connected; This structure can meet the requirement of four-phase separator convenient transportation, also the installation and removal of being convenient to equipment are safeguarded simultaneously, this structure design is divided into three large modules by four-phase separator, modular design realizes split and safeguards and transportation easily and effectively, the form of structure of the compact combination of the skid of split simultaneously is also convenient to rationally place in situ of drilling well, has reduced taking up room in well site.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation
Fig. 2 is the mounting structure schematic diagram that the utility model adopts prying body structure
In figure, be labeled as: 1, leakage fluid dram, 2, four-phase separator, 3, reclaim line, 4, the first feed liquor pipeline, 5, standby feed liquor pipeline, 6, standby vertical pipeline section control valve, 7, the 3rd feed liquor pipeline, 8, the 3rd vertical pipeline section control valve, 9, pipeline, 10, sand tank, 11, liquid level sensor, 12, pipeline pump, 13, pipeline ball-and-seat, 14, the 3rd four-way structure, 15, pressure sensor, 16, the first vertical pipeline section control valve, 17, flow meter, 18, the first horizontal pipeline section control valve, 19, mechanism's inlet, 20, reclaim line ball-and-seat, 21, reclaim line pump, 22, reclaim line control valve, 23, feed tube prying body, 24, pump valve prying body, 25, alignment pin.
The specific embodiment
Embodiment 1
A four-phase separator feed liquor mechanism for drilling well, comprises the first feed liquor pipeline 4, standby feed liquor pipeline 5, the 3rd feed liquor pipeline 7 and reclaim line 3; The circulation when four-phase separator 2 normal operation of described the first feed liquor pipeline 4; The pressure of described standby feed liquor pipeline 5 in the first feed liquor pipeline 4 surpasses while setting value and the first feed liquor pipeline 4 circulates simultaneously; The 3rd feed liquor pipeline 7 again reclaims and flow into the pipeline circulating in four-phase separator 2 for enter the drilling fluid of sand tank 10 after the solid phase cabin separation of four-phase separator 2; Described reclaim line 3 one end are connected to the leakage fluid dram 1 of four-phase separator 2, the other end is connected to the inlet of the first feed liquor pipeline 4 and standby feed liquor pipeline 5, after four-phase separator 2 has normally moved, four-phase separator 2, reclaim line 3, the first feed liquor pipeline 4 and standby feed liquor pipeline 5 form circulation of drilling fluid path.
The utility model also comprises skid structure, and described skid structure comprises feed tube prying body 23 and pump valve prying body 24, and the feed liquor pipeline of described four-phase separator is arranged on feed tube prying body 23, and the pump of four-phase separator and control valve are arranged on pump valve prying body 24; Four-phase separator 2 bottoms are connected with pump valve prying body 24, and a side is connected with feed tube prying body 23.
Described the first feed liquor pipeline 4 comprises the first horizontal pipeline section pipeline section vertical with first, and the first horizontal pipeline section is connected with the first vertical pipeline section by the first four-way structure, and the inlet of the first horizontal pipeline section is connected with feed tube, and the first vertical pipeline section is connected to four-phase separator.The inlet of the first horizontal pipeline section is mechanism's inlet 19, from the drilling fluid returning out in well, from mechanism's inlet 19, enters feed liquor mechanism.
In the present embodiment, described standby feed liquor pipeline 5 comprises standby vertical pipeline section, and standby vertical pipeline section one end is connected to four-phase separator 2, and the other end is connected with standby four-way structure, and standby four-way structure is communicated with the first four-way structure.
In the present embodiment, described the 3rd feed liquor pipeline 7 comprises the 3rd vertical pipeline section, the 3rd vertical pipeline section one end is connected to four-phase separator 2, the other end is connected with the 3rd four-way structure 14, the 3rd four-way structure 14 is connected to sand tank 10 by pipeline 9, and sand tank 10 is connected to the solid phase cabin of four-phase separator 2 by another pipeline, form solid phase cabin to the circulation line of sand tank 10.
In the present embodiment, the leakage fluid dram 1 discharge opeing direction along four-phase separator 2 in described reclaim line 3 is disposed with reclaim line control valve 22, reclaim line pump 21 and reclaim line ball-and-seat 20.
Further, on the first horizontal pipeline section of described the first feed liquor pipeline 4, be provided with the first horizontal pipeline section control valve 18 and pressure sensor, the other end of reclaim line 3 is connected on the first horizontal pipeline section between the first four-way structure and the first horizontal pipeline section control valve 18; On the first vertical pipeline section, be provided with the first vertical pipeline section control valve 16 and flow meter 17.
Further, after described standby feed liquor pipeline 5 is in parallel with the 3rd feed liquor pipeline 7, be connected to four-phase separator 2, on the standby vertical pipeline section of standby feed liquor pipeline 5, be provided with standby vertical pipeline section control valve 6 and flow meter 17.
Further, on the 3rd vertical pipeline section of described the 3rd feed liquor pipeline 7, be provided with the 3rd vertical pipeline section control valve 8 and flow meter 17, on the pipeline being connected with sand tank 10, be provided with pipeline ball-and-seat 13, pipeline pump 12 and pipeline control valve, on sand tank 10, be provided with liquid level monitoring arrangement, liquid level monitoring arrangement is preferably liquid level sensor 11.
In the present embodiment, preferably, described four-phase separator 2 is connected with the pump valve prying body 24 of bottom by flange, one side is connected with feed tube prying body 23 by flange, and by alignment pin 25, four-phase separator 2 and pump valve prying body 24 is even stable, by alignment pin, pump valve prying body 24 is connected with feed tube prying body 23 is stable.
Adopt control method of the present utility model as follows:
If a, the force value in the first feed liquor pipeline are less than or equal to setting value, four-phase separator normally moves, the first feed liquor pipeline circulation;
When b, the pressure in the first feed liquor pipeline surpass setting value, standby feed liquor pipeline is opened, and standby feed liquor pipeline and the first feed liquor pipeline circulate simultaneously;
C, enter sand tank when the drilling fluid after the cabin separation of four-phase separator solid phase, when the liquid level in sand tank surpasses setting value, the 3rd feed liquor pipeline is opened, and the drilling fluid in sand tank is pumped into and in tank, carries out separation;
D, after four-phase separator has moved, in four-phase separator, inject drilling fluid, by reclaim line, the first feed liquor pipeline, standby feed liquor pipeline and four-phase separator, form circulation of drilling fluid.
Below operating principle of the present utility model is described:
Four-phase separator 2 utilizes the control of ball valve control valve to only have the first feed liquor pipeline 4 circulations when normal operation, when the pressure that the first feed liquor pipeline 4 detected when pressure sensor 15 surpasses setting pressure, the ball valve of another standby feed liquor pipeline 5 is automatically opened drilling fluid can be entered in four-phase separator 2 from two feed liquor pipelines simultaneously, thereby the pressure of reduction the first feed liquor pipeline 4 makes pipeline in normal pressure limit.
The 3rd feed liquor pipeline 7 is again to be reclaimed and flow into the pipeline circulating in four-phase separator 2 by the remaining drilling fluid that enters sand tank 10 after the solid phase cabin separation through four-phase separator 2, four-phase separator 2 is connected to sand tank 10 by pipeline 9, by another pipeline, sand tank 10 is connected to four-phase separator 2 again, this pipeline 9 is connected in parallel by flange and standby feed liquor pipeline 5, drilling fluid in sand tank 10 is carried out in converging rear inflow four-phase separator 2 with the drilling fluid of standby feed liquor pipeline 5 separated.
When avoiding enabling at the same time the reclaim line 3 of standby feed liquor pipeline 5 and raffinate, the drilling fluid in standby feed liquor pipeline 5 pours into reclaim line 3, and reclaim line ball-and-seat 20 need be installed in reclaim line.It is liquid level sensor 11 that liquid level monitoring arrangement is installed on sand tank 10, carries out in real time liquid level monitoring, and automatically controls the pump valve switch on this pipeline.
After drilling well finishes, because the landwaste in drilling fluid is subject to self gravitation effect meeting under the deposition of the vertical pipeline section bottom of feed liquor pipeline, for fear of the landwaste depositing, by pipeline blockage, designed two kinds of structures and the landwaste of feed liquor pipeline section has been removed clean.First the leakage fluid dram of four-phase separator 21 is connected to the first feed liquor pipeline 4 by one section of pipeline, and reclaim line ball-and-seat 20 is installed.After termination of pumping, the liquid inlet control valve of closing the first feed liquor pipeline 4 is the first horizontal pipeline section control valve 18, can make the clean drilling fluid of part circulate in pipeline, can constantly rinse the landwaste of deposition in the vertical pipeline section of feed tube in cyclic process.Secondly, at the vertical pipeline section of feed tube and the intersection of horizontal pipeline section, designed four-way pipeline structure, both can alleviate the erosion corrosion to pipeline turning point in drilling fluid separation process, also can when termination of pumping, the flange in the bottom blind plate of four-way pipeline be opened the landwaste of deposition is discharged, guarantee the clean and unobstructed of pipeline.On every feed liquor pipeline, flow meter is installed, constantly monitors each pipeline inner fluid flow situation, for system reliability service provides safeguard simultaneously.
Embodiment 2
Below in conjunction with accompanying drawing, the utility model embodiment is described further.
Figure 1 shows that four-phase separator feed liquor structural scheme of mechanism for the utility model drilling well.
From the drilling fluid returning out in well, from mechanism's inlet 19, enter feed liquor mechanism, if the first feed liquor pipeline 4 force value that pressure sensor 15 detects are less than setting value, in normally-pressured neighbor, the first vertical pipeline section control valve 16 is opened drilling fluid is flowed in four-phase separator 2 from the first vertical pipeline section, and standby vertical pipeline section control valve 6 and other valve are in closing.
When the force value detecting when pressure sensor 15 surpasses setting value, standby vertical pipeline section control valve 6 is automatically opened drilling fluid is entered in four-phase separator 2 with standby vertical pipeline section from the first vertical pipeline section simultaneously.The liquid level that liquid level sensor 11 on sand tank 10 detects surpasses setting value, open the 3rd vertical pipeline section control valve 8, start pipeline pump 12, remaining drilling fluid in sand tank is again pumped in four-phase separator 2 and carries out separation, and pipeline ball-and-seat 13 prevents that the drilling fluid in standby vertical pipeline section is back to the 3rd vertical pipeline section.
After four-phase separator 2 has normally moved, the drilling fluid clean to the interior injection of four-phase separator 2 participates in circulation, open reclaim line control valve 22, close the first horizontal pipeline section control valve 18, start reclaim line pump 21, make drilling fluid along reclaim line 3, flow into the first vertical pipeline section and standby vertical pipeline section from leakage fluid dram 1.It is circulated in four-phase separator, thereby pour in four-phase separator with sand setting and the landwaste of standby vertical pipeline section bottom be deposited on the first vertical pipeline section because of Action of Gravity Field, in order to avoid block inlet, affect the four-phase separator normal operation of next time.
Reclaim line ball-and-seat 20 avoids drilling fluid when drilling well directly from mechanism's inlet 19, to scurry into reclaim line 3.In addition, the four-way structure of feed liquor pipeline section bottom design can be opened the blank flange of bottom, and the landwaste of deposition is discharged from flange port.Three feed liquor pipelines are all provided with flow meter 17, monitor flow situation in each pipeline.
Claims (10)
1. a four-phase separator feed liquor mechanism for drilling well, is characterized in that: comprise the first feed liquor pipeline (4), standby feed liquor pipeline (5), the 3rd feed liquor pipeline (7) and reclaim line (3); Described the first feed liquor pipeline (4) circulates when four-phase separator (2) normally moves; The pressure of described standby feed liquor pipeline (5) in the first feed liquor pipeline (4) surpasses while setting value and the first feed liquor pipeline (4) circulates simultaneously; The 3rd feed liquor pipeline (7) flow into for the drilling fluid that enters sand tank (10) after four-phase separator (2) solid phase cabin separation reclaims again the pipeline circulating in four-phase separator (2); Described reclaim line (3) one end is connected to the leakage fluid dram of four-phase separator (2), the other end is connected to the inlet of the first feed liquor pipeline (4) and standby feed liquor pipeline (5), after four-phase separator (2) has normally moved, four-phase separator (2), reclaim line (3), the first feed liquor pipeline (4) and standby feed liquor pipeline (5) form circulation of drilling fluid path.
2. four-phase separator feed liquor mechanism for drilling well according to claim 1, it is characterized in that: also comprise skid structure, described skid structure comprises feed tube prying body (23) and pump valve prying body (24), it is upper that the feed liquor pipeline of described four-phase separator is arranged on feed tube prying body (23), and the pump of four-phase separator and control valve are arranged on pump valve prying body (24); Four-phase separator (2) bottom is connected with pump valve prying body (24), and a side is connected with feed tube prying body (23).
3. four-phase separator feed liquor mechanism for drilling well according to claim 1 and 2, it is characterized in that: described the first feed liquor pipeline (4) comprises the first horizontal pipeline section pipeline section vertical with first, the first horizontal pipeline section is connected with the first vertical pipeline section by the first four-way structure, the inlet of the first horizontal pipeline section is connected with feed tube, and the first vertical pipeline section is connected to four-phase separator (2).
4. four-phase separator feed liquor mechanism for drilling well according to claim 3, it is characterized in that: described standby feed liquor pipeline (5) comprises standby vertical pipeline section, standby vertical pipeline section one end is connected to four-phase separator (2), the other end is connected with standby four-way structure, and standby four-way structure is communicated with the first four-way structure.
5. according to four-phase separator feed liquor mechanism for the drilling well described in claim 1,2 or 4, it is characterized in that: described the 3rd feed liquor pipeline (7) comprises the 3rd vertical pipeline section, the 3rd vertical pipeline section one end is connected to four-phase separator (2), the other end is connected with the 3rd four-way structure (14), the 3rd four-way structure (14) is connected to sand tank (10) by pipeline, and sand tank (10) is connected to four-phase separator (2) solid phase cabin by pipeline, form circulation line.
6. four-phase separator feed liquor mechanism for drilling well according to claim 5, is characterized in that: upper leakage fluid dram (1) the discharge opeing direction along four-phase separator (2) of described reclaim line (3) is disposed with reclaim line control valve (22), reclaim line pump (21) and reclaim line ball-and-seat (20).
7. four-phase separator feed liquor mechanism for drilling well according to claim 3, it is characterized in that: on the first horizontal pipeline section of described the first feed liquor pipeline (4), be provided with the first horizontal pipeline section control valve (18) and pressure sensor (15), the other end of reclaim line (3) is connected on the first horizontal pipeline section between the first four-way structure and the first horizontal pipeline section control valve (18); On the first vertical pipeline section, be provided with the first vertical pipeline section control valve (16) and flow meter (17).
8. four-phase separator feed liquor mechanism for drilling well according to claim 4, it is characterized in that: after described standby feed liquor pipeline (5) is in parallel with the 3rd feed liquor pipeline (7), be connected to four-phase separator (2), on the standby vertical pipeline section of standby feed liquor pipeline (5), be provided with standby vertical pipeline section control valve (6) and flow meter (17).
9. four-phase separator feed liquor mechanism for drilling well according to claim 5, it is characterized in that: on the 3rd vertical pipeline section of described the 3rd feed liquor pipeline (7), be provided with the 3rd vertical pipeline section control valve (8) and flow meter (17), on the pipeline being connected with sand tank (10), be provided with pipeline ball-and-seat (13), pipeline pump (12) and pipeline control valve, sand tank is provided with liquid level monitoring arrangement on (10).
10. four-phase separator feed liquor mechanism for drilling well according to claim 2, it is characterized in that: described four-phase separator (2) is connected with the pump valve prying body (24) of bottom by flange, one side is connected with feed tube prying body (23) by flange, and respectively by alignment pin (25) by four-phase separator (2) be connected with pump valve prying body (24), pump valve prying body (24) is connected with feed tube prying body (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320707215.8U CN203559829U (en) | 2013-11-11 | 2013-11-11 | Liquid feeding mechanism of four-phase separator for drilling |
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| CN201320707215.8U CN203559829U (en) | 2013-11-11 | 2013-11-11 | Liquid feeding mechanism of four-phase separator for drilling |
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| CN203559829U true CN203559829U (en) | 2014-04-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615208A (en) * | 2013-11-11 | 2014-03-05 | 中国石油集团川庆钻探工程有限公司 | Liquid inlet mechanism of drilling four-phase separator, and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615208A (en) * | 2013-11-11 | 2014-03-05 | 中国石油集团川庆钻探工程有限公司 | Liquid inlet mechanism of drilling four-phase separator, and control method thereof |
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