CN108194042A - A kind of oil-contained drilling cuttings thermal release processing structure of electrical heating and sledge mill synergy - Google Patents

A kind of oil-contained drilling cuttings thermal release processing structure of electrical heating and sledge mill synergy Download PDF

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Publication number
CN108194042A
CN108194042A CN201810109185.8A CN201810109185A CN108194042A CN 108194042 A CN108194042 A CN 108194042A CN 201810109185 A CN201810109185 A CN 201810109185A CN 108194042 A CN108194042 A CN 108194042A
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CN
China
Prior art keywords
sledge mill
drilling cuttings
oil
sledge
stator
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CN201810109185.8A
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Chinese (zh)
Inventor
黄志强
张文远
李琴
李前春
张新发
胡东锋
陈振
权银虎
郭亮
叶文勇
王玉
徐军
李世勇
徐子扬
蒲凯伦
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Southwest Petroleum University
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Southwest Petroleum University
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Publication date
Application filed by Southwest Petroleum University filed Critical Southwest Petroleum University
Priority to CN201810109185.8A priority Critical patent/CN108194042A/en
Publication of CN108194042A publication Critical patent/CN108194042A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/06Arrangements for treating drilling fluids outside the borehole
    • E21B21/063Arrangements for treating drilling fluids outside the borehole by separating components

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)

Abstract

The invention belongs to oil gas field environmental protection technical fields, specifically provide the oil-contained drilling cuttings thermal release processing structure of a kind of electrical heating and sledge mill synergy.Oil-contained drilling cuttings enter sledge mill stator by feeding-passage, solid phase drilling cuttings is stirred continuously by sledge mill rotor high speed rotation, broken and sledge mill heat, heating tape is wrapped in sledge mill stator outer wall and generates heat simultaneously, under the synergy heated in sledge mill heat and heating tape, fluid in oil-contained drilling cuttings be heated vaporization and formed steam stream from exhaust passage discharge, remaining solid phase drilling cuttings is discharged by the solid channel of row, realizes the Thermal desorption separation of oil-contained drilling cuttings.The present invention uses the Thermal desorption mode of electrical heating and sledge mill synergy, shortcoming and defect existing for other oil-contained drilling cuttings Thermal desorption processing units is well solved, have the advantages that low energy consumption, it is efficient, with small vibration, heated evenly, can it is more green, efficiently and safely handle oil-contained drilling cuttings, meet oil gas field green resourceization development environmental requirement.

Description

A kind of oil-contained drilling cuttings thermal release processing structure of electrical heating and sledge mill synergy
Technical field
The present invention relates to the oil-contained drilling cuttings thermal release processing structures of a kind of electrical heating and sledge mill synergy, belong to oil gas field Field of environment protection.
Background technology
With the fast development of oil and gas industry, oil base drilling fluid is because of its good rheological characteristic, vena caval filter And lubricity, it is widely used in the partially or completely well section of oil/gas drilling process, but adjoint and raw is a large amount of oil-containing Drilling cuttings.Oil-contained drilling cuttings contain a large amount of base oil, chemical addition agent and other harmful substances, these substances are difficult to natural degradation, If untreated or deal with improperly and huge harm will be caused to environment and health.At present, the country to oil-contained drilling cuttings at The technology of reason mainly has buried and reinjection into reservoir etc. after burning, de-oiling, these technologies not only have potential pollution hidden trouble, but also The precious resources such as a large amount of base oil are wasted, seriously violate the Green Development requirement of China's oil and gas industry, and are contained The development of oily drilling cuttings thermal release treatment technology and its device just mutually agrees with the oil gas field environmental protection demand in China.
It is huge excellent that there is oil-contained drilling cuttings thermal release treatment technology processing to stablize, basic oil recovery rate is high, oil quality is good etc. Gesture.At present, domestic and international oil-contained drilling cuttings thermal release processing unit predominantly turns round heating kiln, electric furnace and heat transfer oil heater Etc. indirect heat separation device, however there are temperature requirement is high, energy consumption is big, takes up an area the defects of wide, and oil-contained drilling cuttings for these devices Uneven heating is even, and the oil-contained drilling cuttings treatment effect for leading to device center portion is bad, it is difficult to fully meet oil gas field green resourceization hair The environmental requirement of exhibition is not particularly suited for large-scale promotion application.Therefore, a kind of novel oil-contained drilling cuttings heat point of economical and efficient is invented From processing unit to environmental protection, economize on resources and the sustainable development of oil and gas enterprise is all significant.
Invention content
The purpose of the invention is to overcome shortcoming and the deficiencies in the prior art described above, a kind of electrical heating and hammer are provided The oil-contained drilling cuttings thermal release processing structure of synergy is ground, to solve the problems, such as the subsequent processing of oil-contained drilling cuttings, and is being solved Achieve the purpose that resource recycling while problem of environmental pollution.
To achieve the above object, the technical solution adopted in the present invention is:
The present invention is the oil-contained drilling cuttings thermal release processing structure of a kind of electrical heating and sledge mill synergy, and primary structure includes Journal bearing, dynamic sealing, left end cap, left end cap, chamber isolation piece, right end cap, exhaust passage, end cover, right support, power Axis, feeding-passage, heating tape heating unit, left support, sledge mill stator, sledge mill stator wearing layer, sledge mill rotor wearing layer, sledge mill Rotor, the solid channel of row.
The sledge mill stator is welded with feeding-passage and the solid channel of row, and it is wear-resisting that sledge mill stator inner wall heap is welded with sledge mill stator Layer;Sledge mill rotor is mounted on by way of spline connection on line shaft, and the external motor of line shaft left end drives power by motor Shaft rotation is moved, so as to make line shaft that sledge mill rotor be driven to carry out high-speed rotation;Oil-contained drilling cuttings by feeding-passage by entering sledge mill In stator, oil-contained drilling cuttings are migrated to sledge mill stator and sledge mill and are turned under the action of the centrifugal force generated in sledge mill rotor high-speed rotation The sledge mill region that sub- top forms;Under the action of sledge mill power, solid phase components therein are stirred continuously, are crushed simultaneously oil-contained drilling cuttings Sledge mill heat, while sledge mill stator heats up under the heat effect of heating tape;Oil-contained drilling cuttings under the collective effect of two kinds of heats, Oily, water component therein reaches boiling point and volatilizees and form steam stream, and solid phase drilling cuttings leads under gravity and the effect of drilling cuttings extruding force The row of mistake consolidates channel discharge, and steam stream is finally discharged by exhaust passage, realizes the thermal release of oil-contained drilling cuttings.
The sledge mill rotor is six impeller structures, is mounted on line shaft, and on sledge mill rotor top in a manner that spline couples Portion's heap is welded with sledge mill rotor wearing layer;According to required oil-contained drilling cuttings treating capacity, along 16~24 groups of sledge mills of line shaft axial alignment Rotor;The left side installation site of sledge mill rotor set is positioned by stop screw, and the right side of sledge mill rotor set is fixed by axle journal Position prevents sledge mill rotor from axial float occurs.
The line shaft is supported by the journal bearing of left and right ends, and journal bearing is separately mounted to left support and right support On, and left support and right support are coupled respectively by bolt with left end cap, right end cap, and right support has opening with logical by being vented Road;The stretching of line shaft left end is connected with motor, provides power for device, has end cover, end cover outside line shaft right end It is connected by bolts in right support;The both sides of line shaft are provided with dynamic sealing, to prevent oil-contained drilling cuttings, grease steam stream, powder Dirt is missed, and dynamic sealing is separately mounted to by bolt on left end cap and right end cap by the both ends of line shaft.
The heating tape heating unit is made of heating tape, heat-preservation cotton, heating controller.Heating tape is wrapped in sledge mill stator Outside, and pass through steel band and fix;The temperature of heating tape is controlled by heating controller, for heating tape heat production to be controlled to make sledge mill stator Reach the treatment temperature needed for oil-contained drilling cuttings;There is heat-preservation cotton under heating tape, reduce heat dissipation.
The chamber isolation piece is welded on sledge mill stator inner wall and at sledge mill stator right end cap 30cm;Chamber isolation piece Center is provided with through-hole to form gas phase flow channel, the diameter 8cm big compared with line shaft outer diameter of through-hole;Chamber isolation piece obstructs solid phase The migration pathway of drilling cuttings makes solid phase drilling cuttings be only capable of discharging, and chamber by the solid channel of row under gravity and the effect of drilling cuttings extruding force Room spacer center and the gap of right end cap form gas phase channel, steam stream are made to enter the inner cavity of right end cap, and then pass through the right side The exhaust passage discharge of end cap welding.
The invention has the advantages that:(1) present invention heats compound thermal release processing using sledge mill and heating tape Method, not only the oil-contained drilling cuttings in processing procedure be heated evenly, improving the treatment effect oil-containing of oil-contained drilling cuttings reduces drilling cuttings In oil content, and the processing energy consumption of this complex form is lower, floor space smaller;(2) when the present invention can be continuous, long Between handle oil-contained drilling cuttings, realize continuous, the long working of oil-contained drilling cuttings, the treatment effeciency of oil-contained drilling cuttings greatly improved; (3) present invention handles oil-contained drilling cuttings by the way of physical separation, does not destroy the base oil structure in oil-contained drilling cuttings, passes through condensation Steam stream with the recycling of optimized integration oil, can be truly realized the green resourceization processing of oil-contained drilling cuttings;(4) present invention collection Into sledge mill, heating unit and its corollary equipment, the floor space of device entirety is reduced, the occupation of land face of situ of drilling well can be met Product requirement;(5) sledge mill rotor stack used in the present invention is welded with sledge mill rotor wearing layer, while sledge mill stator heap is welded with sledge mill and determines Sub- wearing layer significantly reduces influence of the hammer milling to sledge mill rotor and sledge mill stator, improves service life and the safety of device Property.
Description of the drawings:
Fig. 1 is the structure diagram of the present invention.
Fig. 2 is the sectional view of Fig. 1 of the present invention.
Fig. 3 is the heating tape heating unit schematic diagram in the present invention.
Fig. 4 is middle chamber spacer structure schematic diagram of the present invention.
Fig. 5 is middle chamber spacer Section A-A figure of the present invention.
In figure:1. journal bearing;2. dynamic sealing;3. left end cap;4. stop screw;5. chamber isolation piece;6. right end cap;7. Exhaust passage;8. end cover;9. right support;10. line shaft;11. feeding-passage;12. heating tape heating unit;13. left branch Support;14. sledge mill stator;15. sledge mill stator wearing layer;16. sledge mill rotor wearing layer;17. sledge mill rotor;18. row consolidates channel; 19. heating tape;20. heat-preservation cotton;21. heating controller;
Specific embodiment
The invention will be further described with example below in conjunction with the accompanying drawings:
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, the present invention is the oil-contained drilling cuttings of a kind of electrical heating and sledge mill synergy Thermal release processing structure, primary structure include journal bearing 1, dynamic sealing 2, left end cap 3, stop screw 4, chamber isolation piece 5, the right side End cap 6, exhaust passage 7, end cover 8, right support 9, line shaft 10, feeding-passage 11, heating tape heating unit 12, left support 13rd, sledge mill stator 14, sledge mill stator wearing layer 15, sledge mill rotor wearing layer 16, sledge mill rotor 17, the solid channel 18 of row.
The sledge mill stator 14 is welded with feeding-passage 11 and the solid channel 18 of row, and 14 inner wall overlaying of sledge mill stator has sledge mill to determine Sub- wearing layer 15;Sledge mill rotor 17 is mounted on by way of spline connection on line shaft 10, the external motor of 10 left end of line shaft, Line shaft 10 is driven to rotate by motor, so as to make line shaft 10 that sledge mill rotor 17 be driven to carry out high-speed rotation;Oil-contained drilling cuttings pass through It is entered in sledge mill stator 14 by feeding-passage 11, oil-containing bores under the action of the centrifugal force generated in 17 high-speed rotation of sledge mill rotor Bits are by the sledge mill region formed to sledge mill stator 14 and 17 top of sledge mill rotor of migrating;Oil-contained drilling cuttings under the action of sledge mill power, Solid phase components therein are stirred continuously, broken and sledge mill heat, while sledge mill stator 14 is under the heat effect of heating tape 19 Heating;Under the collective effect of two kinds of heats, oil therein, water component reach boiling point and volatilize and form steam oil-contained drilling cuttings Stream, solid phase drilling cuttings are discharged under gravity and the effect of drilling cuttings extruding force by the solid channel 18 of row, and steam stream is finally by 7 row of exhaust passage Go out, realize the thermal release of fluid.
The sledge mill rotor 17 is six impeller structures, is mounted on line shaft 10 in a manner that spline couples, and turn in sledge mill Sub 17 top heaps are welded with sledge mill rotor wearing layer 16;According to required oil-contained drilling cuttings treating capacity, along line shaft axial alignment 16~ 24 groups of sledge mill rotors 17;The left side installation site of 17 groups of sledge mill rotor is positioned by stop screw 4, and passes through axle journal and fixes sledge mill The right positions that 17 groups of rotor prevent sledge mill rotor 17 from axial float occurs.
The line shaft 10 is supported by the journal bearing 1 of left and right ends, and journal bearing 1 is separately mounted to left support 13 and the right side In support 9, and left support 13 and right support 9 are coupled respectively by bolt with left end cap 3, right end cap 6, and right support 9 has opening To pass through exhaust passage 7;The stretching of 10 left end of line shaft is connected with motor, provides power for device, has outside 10 right end of line shaft End cover 8, end cover 8 are connected by bolts in right support 9;The both sides of line shaft 10 are provided with dynamic sealing 2, to prevent Oil-contained drilling cuttings, grease steam stream, dust are missed, and dynamic sealing 2 is separately mounted to left end by bolt by the both ends of line shaft 10 On lid 3 and right end cap 6.
The heating tape heating unit 12 is made of heating tape 19, heat-preservation cotton 20, heating controller 21.Heating tape 19 is wound Outside sledge mill stator 14, and pass through steel band and fix;The temperature of heating tape 19 is controlled by heating controller 21, for controlling heat tracing Sledge mill stator 14 is made to reach the treatment temperature needed for oil-contained drilling cuttings with heat production;There is heat-preservation cotton 20 under heating tape 19, reduce heat dissipation.
The chamber isolation piece 5 be welded on 14 inner wall of sledge mill stator and at 6 distance 30cm of right end cap;Chamber isolation piece 5 Center is provided with through-hole to form gas phase flow channel, and the diameter of through-hole is compared with the big 8cm of 10 outer diameter of line shaft;Chamber isolation piece 5 obstructs The migration pathway of solid phase drilling cuttings makes solid phase drilling cuttings be only capable of discharging by the solid channel 18 of row under gravity and the effect of drilling cuttings extruding force, And 5 center of chamber isolation piece and the gap of right end cap 6 form gas phase channel, and steam stream is made to enter the inner cavity of right end cap 6, into And the exhaust passage 7 welded by right end cap 6 is discharged.

Claims (3)

1. the oil-contained drilling cuttings thermal release processing structure of a kind of electrical heating and sledge mill synergy, primary structure includes journal bearing (1), dynamic sealing (2), left end cap (3), left end cap (4), chamber isolation piece (5), right end cap (6), exhaust passage (7), sealed end Lid (8), right support (9), line shaft (10), feeding-passage (11), heating tape heating unit (12), left support (13), sledge mill are fixed Sub (14), sledge mill stator wearing layer (15), sledge mill rotor wearing layer (16), sledge mill rotor (17), the solid channel (18) of row;Sledge mill is determined Sub (14) are welded with feeding-passage (11) and the solid channel (18) of row, and sledge mill stator (14) inner wall overlaying has sledge mill stator wearing layer (15), sledge mill rotor (17) is mounted on by way of spline connection on line shaft (10), and drives sledge mill by line shaft (10) Rotor (17) carries out high-speed rotation;Oil-contained drilling cuttings are entered by feeding-passage (11) in sledge mill stator (14), in sledge mill rotor (17) it is migrated under the action of the centrifugal force that high-speed rotation generates to composition at the top of sledge mill stator (14) and sledge mill rotor (17) Sledge mill region;Oil-contained drilling cuttings are under the action of sledge mill power, and solid phase components therein are stirred continuously, broken and sledge mill heat, together When sledge mill stator (14) heat up under the heat effect of heating tape heating unit (12);Oil-contained drilling cuttings are in the common work of two kinds of heats Under, oily, water component therein reaches boiling point and volatilizees and form steam stream, and solid phase drilling cuttings is acted in gravity and drilling cuttings extruding force Lower to be discharged by the solid channel (18) of row, steam stream is finally discharged by exhaust passage (7), is so as to fulfill the Thermal desorption separation of fluid The core of the design.
2. chamber isolation piece (5) as described in claim 1, it is characterised in that:Chamber isolation piece (5) is welded on sledge mill stator (14) inner wall and at sledge mill stator (14) right output port 30cm;Chamber isolation piece (5) center is provided with through-hole to form gas phase stream Dynamic channel, the diameter of through-hole is compared with line shaft (10) the big 10cm of outer diameter.Chamber isolation piece (5) leads to for obstructing the migration of solid phase drilling cuttings Road makes solid phase drilling cuttings be only capable of discharging, and chamber isolation piece by the solid channel (18) of row under gravity and the effect of drilling cuttings extruding force (5) center and the gap of line shaft (10) form gas phase channel, and steam stream is made to enter the inner cavity of right end cap (6).
3. heating tape heating unit (12) described in is made of heating tape (19), heat-preservation cotton (20), heating controller (21).Heat tracing Band (19) is wrapped in sledge mill stator (14) outside, and passes through steel band and fix;The temperature of heating tape (19) is by heating controller (21) Control, for the treatment temperature for controlling heating tape heat production that sledge mill stator (14) is made to reach oil-contained drilling cuttings;There is heat-preservation cotton under heating tape (20), heat dissipation is reduced;It is resistance wire in heating tape (19), according to the volatilization temperature need of fluid components different in oil-contained drilling cuttings Will, heating tape (19) uniform winding 10~18 on sledge mill stator (14) outer wall is enclosed.
CN201810109185.8A 2018-02-05 2018-02-05 A kind of oil-contained drilling cuttings thermal release processing structure of electrical heating and sledge mill synergy Pending CN108194042A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109098676A (en) * 2018-08-22 2018-12-28 西南石油大学 A kind of temperature control system of cutting precessor
CN109577889A (en) * 2019-01-25 2019-04-05 青岛科技大学 A kind of oil-contained drilling cuttings annealing device
CN110273658A (en) * 2019-07-26 2019-09-24 西南石油大学 A kind of modularization sledge mill thermal analysis apparatus handling oil-contained drilling cuttings
CN110527541A (en) * 2019-10-14 2019-12-03 二重(德阳)重型装备有限公司 The heating rotor arrangement and Thermal desorption furnace of oil-based drill cuttings Thermal desorption processing equipment
CN112843758A (en) * 2021-01-11 2021-05-28 中海油天津化工研究设计院有限公司 Heat separation device for recycling marine oil field oil-based drilling waste
CN117888860A (en) * 2023-12-15 2024-04-16 常州大学 Polar region drilling abandonment detritus innocent treatment system and device

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CN204238904U (en) * 2014-11-03 2015-04-01 延长油田股份有限公司杏子川采油厂 A kind of oil filed pipeline heater
CN208546150U (en) * 2018-02-05 2019-02-26 西南石油大学 A kind of oil-contained drilling cuttings thermal release processing structure of electric heating and sledge mill synergy

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US4595422A (en) * 1984-05-11 1986-06-17 Cds Development, Inc. Drill cutting disposal system
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109098676A (en) * 2018-08-22 2018-12-28 西南石油大学 A kind of temperature control system of cutting precessor
CN109098676B (en) * 2018-08-22 2021-07-20 西南石油大学 Temperature control system of drilling cutting processor
CN109577889A (en) * 2019-01-25 2019-04-05 青岛科技大学 A kind of oil-contained drilling cuttings annealing device
CN110273658A (en) * 2019-07-26 2019-09-24 西南石油大学 A kind of modularization sledge mill thermal analysis apparatus handling oil-contained drilling cuttings
CN110527541A (en) * 2019-10-14 2019-12-03 二重(德阳)重型装备有限公司 The heating rotor arrangement and Thermal desorption furnace of oil-based drill cuttings Thermal desorption processing equipment
CN110527541B (en) * 2019-10-14 2024-03-26 二重(德阳)重型装备有限公司 Heating rotor device of oil-based drilling cuttings thermal analysis treatment equipment and thermal analysis furnace
CN112843758A (en) * 2021-01-11 2021-05-28 中海油天津化工研究设计院有限公司 Heat separation device for recycling marine oil field oil-based drilling waste
CN117888860A (en) * 2023-12-15 2024-04-16 常州大学 Polar region drilling abandonment detritus innocent treatment system and device

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Application publication date: 20180622