CN111206891A - Closed automatic rock debris collecting device for sulfur-containing stratum - Google Patents
Closed automatic rock debris collecting device for sulfur-containing stratum Download PDFInfo
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- CN111206891A CN111206891A CN201911076713.5A CN201911076713A CN111206891A CN 111206891 A CN111206891 A CN 111206891A CN 201911076713 A CN201911076713 A CN 201911076713A CN 111206891 A CN111206891 A CN 111206891A
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- rock debris
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
- E21B21/065—Separating solids from drilling fluids
- E21B21/066—Separating solids from drilling fluids with further treatment of the solids, e.g. for disposal
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
- E21B21/067—Separating gases from drilling fluids
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
Abstract
The invention belongs to the technical field of oil drilling closed drilling processes, and discloses a sulfur-bearing stratum closed automatic rock debris collecting device which is compact and ingenious in structural design, has single/double channel arrangement to deal with different use scenes, effectively solves the technical problem that rock debris cannot be obtained in a sulfur-bearing stratum closed circulating system in time, can collect rock debris samples in drilling fluid in a completely closed pressure environment, can prevent hydrogen sulfide in returned fluid from damaging personnel and the environment, and meets the safety requirement of sulfur-bearing stratum drilling operation.
Description
Technical Field
The invention belongs to the technical field of oil drilling airtight drilling processes, and particularly relates to an airtight automatic rock debris collecting device for a sulfur-containing stratum.
Background
During drilling, drilling fluid containing multiphase flow substances (natural gas, hydrogen sulfide and rock debris) returned to the ground from a shaft is guided to enter a ground manifold through a wellhead device, formation fluid can return to the ground along with drilling fluid, and when a sulfur-containing formation is encountered during drilling, sulfide can rise to the ground along with the returned drilling fluid and leak to cause harm to the environment.
For example, in the prior art, as disclosed in the patent document of the chinese utility model with the publication number CN201090210Y and the name "an automatic sampling device for rock debris in gas drilling", an automatic sampling device for rock debris in gas drilling is disclosed, which is used for collecting rock debris in gas drilling, and relates to the technical field of manufacturing of the automatic sampling device for rock debris in gas drilling.
However, the technical scheme does not consider the situation of heavy pollution sources such as sulfide carried in produced liquid, and the simplest and direct production collection control mode is not applicable to the current production requirement. Under the new requirements of safety and environmental protection, the harm to the environment caused by the return of sulfide in the drilling and production process is avoided, so that in order to meet the new environment and requirements, a drilling fluid closed circulation system design is adopted to avoid production leakage.
Disclosure of Invention
The invention aims to provide the sulfur-bearing stratum closed automatic rock debris collecting device which is compact and ingenious in structural design, has single/double channels to deal with different use scenes, effectively solves the technical problem that rock debris cannot be obtained in a sulfur-bearing stratum closed circulating system in time, can collect rock debris samples in drilling fluid in a completely closed environment with pressure, can prevent hydrogen sulfide in returned fluid from damaging personnel and the environment, and meets the safety requirement of the sulfur-bearing stratum drilling operation.
The utility model provides a closed automatic detritus collection system in sulphur-bearing stratum which characterized in that: the rock debris separator comprises a main pipeline which is connected with a main produced fluid pipeline and is provided with a main through valve between a liquid inlet and a liquid outlet, wherein the liquid inlet and the main through valve are connected with a rock debris separating cylinder through an inlet pipeline with a separating cylinder inlet valve, the outlet of the rock debris separating cylinder is connected back to the main pipeline through an outlet pipeline with a separating cylinder outlet valve, and a connector is positioned between the liquid outlet and the main through valve; the inlet pipeline and the outlet pipeline are also connected through a pipeline with a regulating valve; the rock debris separating cylinder is also connected with a pressure relief pipeline with a pressure relief valve, a cleaning pipeline for cleaning a rock debris channel in the rock debris separating cylinder, a storage tank for bearing rock debris and an injection pipe for injecting a sulfur removing agent; the integrated centralized monitoring cabinet is used for controlling the on-off of each valve and injecting a cleaning agent and a desulfurizing agent; the device is connected into a manifold, drilling fluid enters the device, a main channel valve of the device is normally opened, when rock debris needs to be obtained, an inlet channel and an outlet channel of a rock debris separating cylinder of the device are all opened, part of drilling fluid enters the separating cylinder to separate the rock debris, the main channel valve can be closed to allow more drilling fluid to enter the separating cylinder, the amount of the drilling fluid entering the separating cylinder is adjusted through a return circuit adjusting valve, and solid phase separation is performed after the drilling fluid containing the rock debris enters the separating cylinder.
The rock debris separation barrel comprises an anti-impact lining barrel mechanism arranged at the upper part in the rock debris filter barrel body, drilling fluid enters the rock debris separation barrel, an angle of a drilling fluid flow passage can be changed, and high-pressure high-speed fluid containing rock debris solid-phase particles can directly scour the inner wall of the rock debris separation barrel, so that the anti-impact lining barrel mechanism in the separation barrel is designed, the injection pipe is connected to the upper part in the rock debris filter barrel body, filter holes are formed in the barrel wall of the rock debris filter barrel body, after the drilling fluid enters the filter barrel, the diameter of the rock debris particles is larger than that of the filter holes, the rock debris particles are blocked by the filter barrel and fall into a lower tapered channel, and the lower part in the rock debris filter barrel body is a channel; the upper part and the lower part of the rock debris filter cylinder body are both of an open structure, a top flange plate is covered on the top of the rock debris filter cylinder body, drilling fluid enters the filter cylinder from an upper opening, and separated rock debris falls out from a lower opening.
The bottom of the rock debris filter cylinder body is an inward tightened conical channel, a cleaning injection port is arranged on the conical channel, the channel direction inclines upwards towards the rock debris channel in the rock debris filter cylinder body, and the cleaning pipeline is connected with the rock debris separation cylinder through the cleaning injection port.
The anti-scouring lining barrel mechanism comprises a semi-open annular anti-scouring lining barrel body with an anti-scouring circular top plate at the top, and the top of the anti-scouring lining barrel body and the anti-scouring circular top plate are provided with central pressure relief holes correspondingly.
The anti-washing barrel lining barrel body is directly detachably connected with the anti-washing round top plate through screws.
Preferably, the lower part of the rock debris filter cylinder body is located on a support seat at the lower part in the rock debris separation cylinder, and the support seat plays a role in fixing and supporting the lower part.
And the pressure relief pipeline, the rock debris separating cylinder and the main pipeline are respectively provided with a pressure relief pressure detector, a separating cylinder differential pressure monitor and a main valve differential pressure monitor which are used for detecting pipeline pressure.
Be provided with the sealed drawer that has the drawer handle in the holding box, carry out the manual drawer that opens through the drawer handle of pulling sealed drawer terminal surface and acquire the detritus, the terminal surface of bin with seal through sealing mechanism between the apron of sealed drawer, nonparallel between the removal orbit of sealed drawer and the bin, the detritus falls into the sealed drawer in the lower part bin, and the switch that for the convenience in the drawer fluid outflow fast and then let the detritus strain dry sealed drawer and be the removes track and the horizontal plane and have certain contained angle.
Furthermore, a filter basket which is provided with a filter hole and a handle and can be taken out from the sealed drawer is arranged in the sealed drawer, the rock debris separated and collected is stored in the filter basket, the residual drilling fluid, the cleaning fluid and other liquid flow into the bottom of the storage box through the filter hole, the liquid drainage hole at the bottom of the storage box is connected with a cleaning fluid drainage pipeline with pumping equipment, and the liquid is drained through the liquid drainage hole at the bottom of the storage box and the cleaning fluid drainage pipeline by the pumping equipment. After the rock debris collection is finished, the filter basket is placed in the storage box again, and the drawer is closed; the opening mechanism of the storage box can also be designed in an automatic mode, for example, two sides of the sealed drawer can be movably arranged in the storage box through a telescopic rod, and the telescopic rod can be driven in a hydraulic mode, a pneumatic mode and other known modes.
Preferably, the rock debris separation cylinder is composed of two, correspondingly, the inlet pipeline and the outlet pipeline respectively comprise branches corresponding to the two rock debris separation cylinders.
The solid phase separation structure of the device is designed into a filter cylinder separation mechanism, the drilling fluid for separating rock debris flows out through an outlet at the lower part of the separation cylinder and then flows into the main channel of the drilling fluid again through a tee joint, after rock debris separation is completed, a valve of the main channel is opened firstly, an inlet and outlet valve channel of the separation cylinder is closed in sequence, and the normal main flow pipeline state of the drilling fluid is returned. In order to obtain the separated rock debris, a pressure relief manifold is adopted to relieve the pressure of the separation cylinder; desulfurizing the rock debris particles and the residual liquid in the separation cylinder by adopting a desulfurizing agent injection channel; a purging manifold is adopted to remove toxic and harmful gases in the separating cylinder; cleaning the rock debris falling into the storage tank at the lower part of the separation cylinder by adopting a cleaning channel; and a liquid discharge mechanism is adopted to discharge the cleaning liquid and the residual liquid. The solid phase of the processed cuttings can be taken out directly from the sealed drawer on the storage tank.
Compared with the prior art, the device adopts a drilling fluid closed circulation system, comprises a four-phase separator, a hydrogen sulfide removing device and the like, abandons the traditional vibrating screen, and separates the fluid returned from the wellhead on the ground under a closed condition. The solid phase separation is handled by gravity separation in the tank. The treatment method has the characteristics of large treatment capacity and sealing safety. But creates difficulties for the cuttings collection sampling required for logging. Firstly, the discharged rock debris cannot timely and accurately reflect the information of the corresponding stratum due to the gravity separation mode; secondly, the discharged rock debris contains hydrogen sulfide, and the direct contact sampling can cause personnel injury. Therefore, in order to solve the problem, the invention provides a quick closed rock debris collecting device for a sulfur-containing stratum. The device can be in the required detritus sample of automatic quick effectual acquisition logging in airtight circulation system to can avoid the injury of hydrogen sulfide to personnel.
For satisfying the automatic operation that whole detritus acquireed, the design has main passageway flow pressure, separating cylinder pressure and inlet and outlet pressure differential, hydrogen sulfide concentration and the monitoring mechanism of separating cylinder export flow, guarantees detritus and acquires process safe and reliable, will include automatically controlled mechanism and the device design that can direct monitoring and control and skid-mounted structure as an organic whole, can realize the automatic monitoring and the operation of device to reduced the structure size of device, be convenient for installation and maintenance.
The logging rock debris sample is collected by adopting the under-pressure fully-closed device, the rock debris is subjected to the processes of pressure relief, sulfur removal, purging, cleaning and the like, the damage of toxic and harmful gases such as high pressure and hydrogen sulfide to operators is avoided, the safe and environment-friendly operation condition is provided for the rock debris sample collection work, the rapid separation of the rock debris and the drilling fluid is realized by adopting the replaceable filtering mechanism, and the requirements of different logging working conditions on the rock debris sample are met.
The automatic rock debris collecting device can also adopt two operating conditions of manual operation and automatic operation, the automatic operation process is simple and reliable, the automatic operation of each mechanism is assisted by monitoring means such as pressure, flow and hydrogen sulfide, the safety and reliability are improved, one-key automatic rock debris collection is realized, and the working efficiency is improved. The invention can also adopt a single-channel structure or a double-channel structure to adapt to different application working conditions.
Drawings
The foregoing and following detailed description of the invention will be apparent when read in conjunction with the following drawings, in which:
FIG. 1 is a front perspective view of a preferred embodiment of the present invention;
FIG. 2 is a rear perspective view of a preferred embodiment of the present invention;
FIG. 3 is a schematic diagram showing the internal structure of a preferred embodiment of the rock debris separation cylinder of the present invention;
FIG. 4 is a front elevational view of a preferred embodiment of the bin of the present invention;
FIG. 5 is a schematic perspective view of a preferred embodiment of the bin of the present invention;
FIG. 6 is a schematic perspective view of a preferred embodiment of a filter basket according to the present invention;
FIG. 7 is a schematic structural view of a preferred embodiment of the present invention;
wherein:
1. a valve line; 2. a rock debris separation barrel; 201. a tapered channel; 202. cleaning the injection port; 203. a top flange plate; 204. the circular top plate is prevented from being scoured; 205. a seal ring; 206. a screw; 207. the anti-washing barrel is lined with the barrel body; 208. a barrel wall pressure relief hole; 209. a communicating hole; 210. a flange; 211. a central pressure relief vent; 212. an inlet flange; 213. a sulfur removal through hole; 214. a pressure detection port; 215. a filter cartridge; 216. a differential pressure monitoring port; 217 supporting the seat; 3. an injection pipe; 4. a pressure relief valve; 5. an outlet valve of the separation cylinder; 6. a pressure relief connecting flange; 7. cleaning a pipeline; 8. a sealed drawer; 801. a drawer handle; 9. a storage tank; 901. a telescopic rod; 902. a drawer cover plate; 903. a handle; 904. a filter basket; 905. a sealing mechanism; 10. a drilling fluid outlet flange; 11. a pumping device; 12. a sulfur removal pipe valve; 13. a sulfur removal inlet; 14. a liquid outlet; 15. a pin; 16. a rear access port; 17. an outlet tee joint; 18. a main through valve; 19. adjusting a valve; 20. a front access port; 21. an inlet tee joint; 22. a pipe support plate; 23. a base plate; 24. a main valve differential pressure monitor; 25. a liquid inlet; 26. cleaning the pump; 27. cleaning the inlet; 28. a separation drum inlet valve; 29. an integrated centralized monitoring cabinet; 30. a pressure relief pressure detector; 31. a turning angle in the liquid inlet pipeline; 32. a separation inlet line; 33. a separation cylinder differential pressure monitor; 34. a rock debris separation valve; 35. a cleaning liquid discharge line; 36. a separation outlet line; 37. a flow meter; 38. a pressure relief pipeline; 39. a sulfur removal pipeline; 40. a liquid discharge pipeline.
Detailed Description
The technical solutions for achieving the objects of the present invention are further illustrated by the following specific examples, and it should be noted that the technical solutions claimed in the present invention include, but are not limited to, the following examples.
Example 1
The most basic embodiment of the invention, as shown in fig. 1 and 2, discloses a sulfur-containing formation closed automatic rock debris collecting device, which comprises a main pipeline connected with a main produced fluid pipeline and provided with a main through valve 18 between a liquid inlet 25 and a liquid outlet 14, wherein the liquid inlet 25 and the main through valve 18 are connected into a rock debris separating cylinder 2 through an inlet pipeline with a separating cylinder inlet valve 28, the outlet of the rock debris separating cylinder 2 is connected back to the main pipeline through an outlet pipeline with a separating cylinder outlet valve 5, and the interface is positioned between the liquid outlet 14 and the main through valve 18; the inlet pipeline and the outlet pipeline are also connected through a pipeline with a regulating valve 19; the rock debris separating cylinder 2 is also connected with a pressure relief pipeline 38 with a pressure relief valve 4, a cleaning pipeline 7 for cleaning a rock debris channel in the rock debris separating cylinder 2, a storage tank 9 for bearing rock debris and an injection pipe 3 for injecting a sulfur removing agent; the integrated centralized monitoring cabinet 29 is used for controlling the on-off of each valve and injecting a cleaning agent and a desulfurizing agent; this kind of device inserts the manifold, and drilling fluid admission device, the main entrance valve of device keep normally open, when needing to obtain the detritus, all opens the 2 access & exit passageways of detritus knockout drum of device, and partial drilling fluid gets into the knockout drum and carries out the detritus separation, for letting more drilling fluids get into the knockout drum, can close the main entrance valve to the volume of drilling fluid in the rethread return circuit governing valve 19 door adjusts the entering knockout drum, carries out solid phase separation after the drilling fluid that contains the detritus gets into the knockout drum.
Example 2
As a preferred embodiment of the present invention, based on embodiment 1, further, as shown in fig. 3, the rock debris separation barrel 2 includes an anti-erosion lining barrel mechanism disposed at an upper portion in the rock debris filter barrel body, drilling fluid enters the rock debris separation barrel 2, and due to a change of an angle of a flow passage of the drilling fluid, high-pressure and high-speed fluid containing rock debris solid-phase particles directly erodes an inner wall of the rock debris separation barrel 2, so that the anti-erosion lining barrel mechanism in the separation barrel is designed, the injection pipe 3 is connected to the upper portion in the rock debris filter barrel body, filter holes are opened on the barrel wall of the rock debris filter barrel body, after the drilling fluid enters the filter barrel, the diameter of the rock debris particles is larger than that of the filter holes, the drilling fluid is blocked by the filter barrel and falls into a tapered passage at the lower portion in the rock debris filter barrel body, and then the; the upper part and the lower part of the rock debris filter cylinder body are both of an open structure, a top flange plate is covered on the top of the rock debris filter cylinder body, drilling fluid enters the filter cylinder from an upper opening, and separated rock debris falls out from a lower opening.
The bottom of the rock debris filter cylinder body is an inward tightened conical channel, a cleaning injection port is arranged on the conical channel, the channel direction of the cleaning injection port inclines upwards towards the rock debris channel in the rock debris filter cylinder body, and the cleaning pipeline 7 is connected with the rock debris separation cylinder 2 through the cleaning injection port. The anti-scouring lining barrel mechanism comprises a semi-open annular anti-scouring lining barrel body with an anti-scouring circular top plate at the top, and the top of the anti-scouring lining barrel body and the anti-scouring circular top plate are provided with central pressure relief holes correspondingly. The anti-washing barrel lining barrel body is directly detachably connected with the anti-washing round top plate through screws. Preferably, the lower part of the rock debris filter cylinder body is located on a support seat at the lower part in the rock debris separation cylinder 2, and the support seat plays a role in fixing and supporting the lower part. The pressure relief pipeline 38, the rock debris separation barrel 2 and the main pipeline are respectively provided with a pressure relief pressure detector 30 for detecting pipeline pressure, a separation barrel pressure difference monitor 33 and a main valve pressure difference monitor 24. Be provided with sealed drawer 8 that has the drawer handle among the bin 9, carry out the manual drawer that opens through the drawer handle of the 8 terminal surfaces of pulling sealed drawer and acquire the detritus, bin 9's terminal surface with seal through sealing mechanism between the apron of sealed drawer 8, nonparallel between sealed drawer 8's the removal orbit and the bin 9, in the detritus falls into sealed drawer 8 in lower part bin 9, for the drawer in the liquid flow out fast and then let the detritus strain the switch movement track that sealed drawer 8 was done and have certain contained angle with the horizontal plane.
Furthermore, a filter basket which is provided with a filter hole and a handle and can be taken out from the sealed drawer 8 is arranged in the sealed drawer 8, the separated and collected rock debris is stored in the filter basket, the residual drilling fluid, the cleaning fluid and other liquid flow into the bottom of the storage box 9 through the filter hole, the liquid discharge hole in the bottom of the storage box 9 is connected with a cleaning fluid discharge pipeline 35 provided with pumping equipment 11, and the liquid is discharged through the liquid discharge hole in the bottom of the storage box 9 and the cleaning fluid discharge pipeline 35 by the pumping equipment 11. After the rock debris collection is finished, the filter basket is placed in the storage box 9 again, and the drawer is closed; the opening mechanism of the storage box 9 can also be designed in an automatic manner, for example, the two sides of the sealed drawer 8 can be movably arranged in the storage box 9 through telescopic rods, and the telescopic rods can be driven in a hydraulic, pneumatic and other known manners.
The sulfur-containing drilling fluid returning from the wellhead enters the device from the liquid inlet 25, when non-cuttings are logged, the main through valve 18 is in an open state, and the drilling fluid directly flows out through the liquid outlet 14 of the device to enter the next processing flow, as shown in fig. 1 and 2. When logging sampling is carried out, the separating cylinder outlet valve 5 and the separating cylinder inlet valve 28 are respectively opened, drilling fluid enters the rock debris separating cylinder 2 through the inlet tee joint 21 and the separating inlet pipeline 32, and the main through valve 18 is closed. The drilling fluid containing rock debris solid phase is separated in the rock debris separating cylinder 2, and the separated drilling fluid is converged into the main pipeline passage through the separating cylinder outlet valve 5, the separating outlet pipeline 36 and the outlet tee 17 and then is discharged from the liquid outlet 14. During logging operations, the amount of drilling fluid entering the separation cylinder can be adjusted by opening the adjusting valve 19 and adjusting the opening degree, so as to ensure that the cuttings obtain a sufficient amount. In the process of separating rock debris in the separating cylinder, in order to prevent the separating cylinder from completely blocking a pipeline, the blocking condition of the separating cylinder can be monitored through the separating cylinder differential pressure monitor 33, and if the differential pressure is too large, the opening degree of the regulating valve 19 is adjusted to reduce the differential pressure. Secondly, the pressure change on the main channel can be monitored by a main valve differential pressure monitor 24 on the main channel, and the main valve differential pressure monitor 24 is connected with the rear access port 16 of the valve through the front access port 20 of the main valve 18. If the monitoring pressure drop is too large, the opening degree of the valve 19 also needs to be adjusted to ensure the pressure safety of the separation cylinder. Thirdly, the flow meter 37 arranged at the outlet of the separation cylinder is used for monitoring the liquid flow at the outlet of the separation cylinder, if the flow rate is obviously reduced, the parameters of the differential pressure gauge are observed, and corresponding adjustment measures are taken. In case of a special emergency, when the rock debris collecting operation needs to be stopped, the main through valve 18 should be opened in time. After the rock debris is obtained, the main through valve 18 is opened, the separation barrel outlet valve 5 and the separation barrel inlet valve 28 can be respectively closed under the condition that the main channel is opened, and the regulating valve 19 is closed.
After the drilling fluid enters the rock debris separating cylinder 2, rock debris is separated through a filter screen mechanism in the separating cylinder, and the structure in the rock debris separating cylinder 2 is shown in figure 3. The drilling fluid enters the separation drum from a fluid inlet line connected through the top flange 203. Because the drilling fluid flow channel can be changed by 90 degrees, the high-pressure high-speed fluid containing rock debris solid-phase particles can directly scour the inner wall of the rock debris separating cylinder 2, and therefore an anti-scour lining cylinder mechanism in the separating cylinder is designed. The mechanism comprises an anti-impact barrel lining barrel 207 with a semi-open annular upper part, and the opening angle of the inner barrel can be between the size of the inlet diameter angle and 90 degrees. The upper part of the cylinder body is provided with an anti-scouring circular top plate 204 which is provided with a central pressure relief hole 211 and screw holes which are uniformly arranged in the circumferential direction. The circular top plate 204 of the impingement sleeve is connected with the barrel 207 of the impingement sleeve liner by screws 206. The scour prevention lining cylinder mechanism can also be arranged in other pipelines with changed flow channels, such as a liquid inlet pipeline of the separation cylinder 2, and the steering angle 31. The lower part of the flushing-proof cylinder liner cylinder 207 is provided with a rock debris filter cylinder body. The upper part and the lower part of the rock debris filter cylinder body are both of an open structure, drilling fluid enters the filter cylinder from an upper opening, and separated rock debris falls out from a lower opening. The lower part of the rock debris filter cylinder body is positioned on the supporting seat 217 at the lower part in the rock debris separating cylinder 2, and plays a role in fixing and supporting the lower part. The wall of the rock debris filter cylinder body is provided with filter holes, and after drilling fluid enters the filter cylinder, the diameter of rock debris particles is larger than that of the filter holes and is blocked by the filter cylinder to fall into the lower conical channel 201. The drilling fluid then passes through the filter holes into the annular space inside the rock debris separator bowl 2 outside the rock debris filter bowl and finally leaves the rock debris separator bowl 2 through a fluid discharge line connected to the flange 210. The size of the filtering hole of the rock debris filtering cylinder body can be changed according to different logging requirements, and during the changing, the top flange plate 203 of the separating cylinder is detached (the connecting mode such as union can be designed). And taking out the anti-impact lining barrel, and taking out the rock debris filter barrel body for replacement. The joint of the top flange plate 203 of the debris separation barrel 2 is sealed by a sealing ring 205. The central pressure relief hole 2011 is correspondingly designed in the middle of the top flange 203, so that manual pressure relief can be performed through the valve pipeline 1 mounted on the top. The method for separating rock debris in the invention is not limited to the method of separating by using a filter cartridge, and the method for obtaining rock debris by using a known method such as centrifugal separation is within the protection scope of the invention.
After the separated rock debris is obtained from the separation barrel 2, a series of treatments need to be carried out on the rock debris. And opening the pressure relief valve 4, and relieving the pressure of the rock debris separation barrel 2 through a barrel wall pressure relief hole 208 and a pressure relief pipeline 38 which are arranged on the barrel wall of the rock debris separation barrel 2. The pressure relief pipeline can be connected to a closed container for sulfur removal treatment. Whether the pressure relief is finished or not is monitored and judged by the pressure relief pressure detector 30. The pressure relief pressure monitor 30 may be installed on the communication hole 209 of the debris separation cylinder 2. After the pressure relief is completed, the valve 12 of the sulfur removal pipe is opened, a sulfur removal agent is injected into the sulfur removal through hole 213 on the separation cylinder 2 through the sulfur removal inlet 13, the sulfur removal pipeline 39 and the injection pipe 3, and the sulfur removal treatment is performed on the rock debris and the residual drilling fluid obtained in the separation cylinder 2. After treatment, the valve 12 of the sulfur removal pipe is closed, the through hole 216 on the separation cylinder 2 is opened, compressed inert gas is injected into the separation cylinder, gas purging is carried out on the separation cylinder, and the purging channel is closed after the gas purging is completed.
After the collected rock debris is processed, the rock debris separating valve 34 at the lower part of the separating cylinder 2 is opened. The cuttings fall into the lower storage tank 9. To prevent debris from clogging the tapered passageway 201 during its fall. The cleaning pump 26 is turned on, and the cleaning liquid is injected into the separation cylinder 2 through the cleaning inlet 27, the cleaning line 7, and the cleaning inlet 202. As shown in fig. 4, the cleaning injection inlet 202 is designed to be upwardly inclined, which helps the high-speed cleaning liquid to reversely impact the conical channel 201 upwardly, unblock the debris falling channel, and finally flush the debris falling to the lower portion. The rock debris falls into a sealed drawer 8 in a lower storage box 9, and a switch moving track of the sealed drawer 8 forms a certain included angle with the horizontal plane, as shown in fig. 5, so that the rock debris can be filtered and dried conveniently because liquid in the drawer flows out quickly. Rock debris can be obtained by manually opening the sealed drawer 8 by pulling a drawer handle 8.1 at the end face of the drawer. The opening mechanism of the storage case may also be designed in an automatic manner, as shown in fig. 5. The two sides of the sealed drawer 8 are connected by a telescopic rod 901, which can be driven by hydraulic, pneumatic and other known methods. The end face of the storage case 9 and the drawer cover 902 are sealed by a sealing mechanism 905. The drawer is internally provided with a filter basket 904 which can be taken out, the separated and collected rock debris is stored in the filter basket 904, and the filter basket 904 is provided with filter holes and a handle 9.3 as shown in figure 5. Residual drilling fluid, cleaning fluid and other liquid flow into the bottom of the storage tank 9 through the filter holes, and the liquid is discharged through a liquid discharge hole in the bottom of the storage tank and a cleaning fluid discharge pipeline 35 by using a pumping device 11. After completion of the debris collection, the filter basket 904 is replaced in the storage box and the drawer 8 is closed, as shown in fig. 5.
Furthermore, the valve and the pumping equipment of the device can be designed to be in a manual mode, and can also be designed to be automatically controlled in known modes such as pneumatic, hydraulic and electric modes. The device is provided with a local integrated centralized monitoring cabinet 29, and can also remotely transmit signals for monitoring. The invention is designed on the bottom plate 23, and is additionally provided with a pin 15 which is convenient for hoisting and moving. The whole device adopts a modularized skid-mounted structure, is convenient to mount and transport quickly, and provides efficiency.
Preferably, as shown in fig. 7, in order to facilitate continuous operation of the rock debris logging, the apparatus of the present invention may be designed into a two-way structure, that is, the rock debris separating cylinder is composed of two corresponding inlet pipes and outlet pipes, each of which includes a branch corresponding to two rock debris separating cylinders; the two-way structure is basically the same as the one-way structure, and the structure is provided with two separating cylinders. And meanwhile, the drilling fluid is respectively provided with a liquid inlet separation inlet pipeline, and the separated drilling fluid is finally converged and returns to the main channel pipeline through a fluid drainage pipeline 40. The double-path structure meets the requirements of the logging on crossed continuous rock debris collecting operation.
Claims (10)
1. The utility model provides a closed automatic detritus collection system in sulphur-bearing stratum which characterized in that: the device comprises a main pipeline which is connected with a main produced liquid pipeline and is provided with a main through valve (18) between a liquid inlet (25) and a liquid outlet (14), wherein the liquid inlet (25) and the main through valve (18) are connected into a rock debris separating cylinder (2) through an inlet pipeline with a separating cylinder inlet valve (28), an outlet of the rock debris separating cylinder (2) is connected back to the main pipeline through an outlet pipeline with a separating cylinder outlet valve (5), and a connector is positioned between the liquid outlet (14) and the main through valve (18); the inlet pipeline and the outlet pipeline are also connected through a pipeline with a regulating valve (19); the rock debris separating cylinder (2) is also connected with a pressure relief pipeline (38) with a pressure relief valve (4), a cleaning pipeline (7) for cleaning a rock debris channel in the rock debris separating cylinder (2), a storage tank (9) for bearing rock debris and an injection pipe (3) for injecting a sulfur removing agent; and the integrated centralized monitoring cabinet (29) is used for controlling the on-off of the valves and injecting a cleaning agent and a desulfurizing agent.
2. The apparatus of claim 1, wherein the apparatus comprises: the rock debris separation barrel (2) comprises an anti-impact lining barrel mechanism arranged at the upper part in the rock debris filter barrel body, the injection pipe (3) is connected to the upper part in the rock debris filter barrel body, and the lower part in the rock debris filter barrel body is a channel for separated rock debris; the upper part and the lower part of the rock debris filter cylinder body are both of an open structure, and a top flange (203) is covered on the top of the rock debris filter cylinder body.
3. The apparatus for closed automatic rock debris collection of sulfur-bearing formation according to claim 1 or 2, wherein: the bottom of the rock debris filter cylinder body is provided with a conical channel (201) which is tightened inwards, a cleaning injection port (202) is arranged on the conical channel (201), the channel direction of the cleaning injection port is inclined upwards and faces the rock debris channel in the rock debris filter cylinder body, and the cleaning pipeline (7) is connected with the rock debris separation cylinder (2) through the cleaning injection port (202).
4. The apparatus of claim 2, wherein the apparatus comprises: the anti-impact lining barrel mechanism comprises a semi-open annular anti-impact barrel lining barrel body (207) with an anti-impact circular top plate (204) at the top, and a central pressure relief hole (211) is formed in the top of the anti-impact barrel lining barrel body (207) and the anti-impact circular top plate (204) correspondingly.
5. The sulfur-bearing formation closed automatic rock debris collecting device as claimed in claim 2 or 4, wherein: the anti-scouring barrel lining barrel body (207) is directly detachably connected with the anti-scouring circular top plate (204) through a screw (206).
6. The sulfur-bearing formation closed automatic rock debris collecting device as claimed in claim 2 or 4, wherein: the lower part of the rock debris filter cylinder body is located on a supporting seat (217) at the lower part in the rock debris separating cylinder (2).
7. The apparatus of claim 1, wherein the apparatus comprises: and the pressure relief pipeline (38), the rock debris separating cylinder (2) and the main pipeline are respectively provided with a pressure relief pressure detector (30) for detecting pipeline pressure, a separating cylinder differential pressure monitor (33) and a main valve differential pressure monitor (24).
8. The apparatus of claim 1, wherein the apparatus comprises: the sealed drawer is characterized in that a sealed drawer (8) with a drawer handle (801) is arranged in the storage box (9), the end face of the storage box (9) and a cover plate of the sealed drawer (8) are sealed through a sealing mechanism (905), and the moving track of the sealed drawer (8) is not parallel to the storage box (9).
9. The apparatus of claim 8, wherein the apparatus comprises: the cleaning machine is characterized in that a filter basket (904) which is provided with a filter hole and a handle (903) and can be taken out from the sealed drawer (8) is arranged in the sealed drawer (8), a liquid discharge hole at the bottom of the storage box (9) is connected with a cleaning liquid discharge pipeline (35) provided with pumping equipment (11), two sides of the sealed drawer (8) are movably arranged in the storage box (9) through telescopic rods (901), and the telescopic rods (901) can be driven in a known mode such as hydraulic pressure, pneumatic pressure and the like.
10. The apparatus of claim 1, wherein the apparatus comprises: the rock debris separating cylinder (2) is composed of two corresponding inlet pipelines and outlet pipelines which respectively comprise branches corresponding to the two rock debris separating cylinders (2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911076713.5A CN111206891A (en) | 2019-11-06 | 2019-11-06 | Closed automatic rock debris collecting device for sulfur-containing stratum |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911076713.5A CN111206891A (en) | 2019-11-06 | 2019-11-06 | Closed automatic rock debris collecting device for sulfur-containing stratum |
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| CN201911076713.5A Pending CN111206891A (en) | 2019-11-06 | 2019-11-06 | Closed automatic rock debris collecting device for sulfur-containing stratum |
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Application publication date: 20200529 |