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CN207091088U - A kind of packaged type acid solution acid gas integrated treatment unit - Google Patents

A kind of packaged type acid solution acid gas integrated treatment unit Download PDF

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Publication number
CN207091088U
CN207091088U CN201720839878.3U CN201720839878U CN207091088U CN 207091088 U CN207091088 U CN 207091088U CN 201720839878 U CN201720839878 U CN 201720839878U CN 207091088 U CN207091088 U CN 207091088U
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China
Prior art keywords
defoamer
reactor
inlet
gas
skid
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CN201720839878.3U
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Chinese (zh)
Inventor
王克强
王芳远
叶忠汉
张正茂
梁陇霞
姚兰
邱宗斌
武志学
毛智平
王涛
郝兰香
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Chuan Qingxin Source Xianyang Engineering Co Ltd
Changqing Downhole Operation Co of CNPC Chuanqing Drilling Engineering Co Ltd
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Chuan Qingxin Source Xianyang Engineering Co Ltd
Changqing Downhole Operation Co of CNPC Chuanqing Drilling Engineering Co Ltd
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Abstract

The utility model provides a kind of packaged type acid solution acid gas integrated treatment unit, including skid, reactor is installed in skid, reactor head opens up alkali lye inlet and defoamer inlet, entrance sample tap is offered on the suction line of reactor, outlet sample tap is offered on reactor outlet pipeline.Separately handled after gas-liquid separation need not being carried out, the acidifying of gas well mouth discharge returns discharge opeing after reducing pressure by regulating flow, reactor is directly entered to be sustained through fluid erosion prevention spacers block, and reacted with defoamer and eliminate foam, acid solution is sufficiently mixed neutralization reaction with NaOH solution of the acid gas in mixer entrance and mass concentration 10%~30%, make discharge liquid pH value 68, discharge HCl content < 1.9mg/m in gas3, HF content < 100mg/m3;Realize that discharge opeing air-liquid integrated treatment is returned in gas field acidifying, without two-phase laminated flow, live pipeline connection is quick and convenient, and device is simple to operate, and processing is efficiently quick, cost is cheap, eliminates acidifying and returns the residual sour, acid gas of row to human body and environmental pollution.

Description

A kind of packaged type acid solution acid gas integrated treatment unit
Technical field
The utility model belongs to gas industries reservoir reconstruction technology field, and in particular to a kind of packaged type Acid solution acid gas integrated treatment unit.
Background technology
In the production process of gas field, acid fracturing is that it increases production one of major measure of stable yields, and acid fluid system is typically by leading Agent and various additives are mixed to get, and host includes hydrochloric acid, hydrofluoric acid etc., additive include corrosion inhibiter, bactericide, retardant, Clay stabilizer, surfactant etc., the substantial amounts of residual acid of discharge and acid gas are returned after acidizing treatment, have it is acid it is strong, corrosivity is strong, The features such as penetrating odor, iron content are high, salinity is high, huge health and safety is produced to local environment and workmen and endangered Evil, and bring difficulty along with substantial amounts of foam, the collection storage of liquid open flow initial stage.
Well site of oil field distribution is scattered, and inter-well distance is remote, road is complicated, has inconvenient traffic, and acidifying well individual well quantum of output is smaller(Greatly Type acidizing treatment individual well returns 200 ~ 300m of row's acidizing waste fluid3, acidizing waste fluid discharge capacity about 60 ~ 70m of small-sized acidizing treatment3), adopt Cost height is focused on tank car transport, higher safety and environmentally friendly hidden danger in transportation be present.
It is automatic that Chinese utility model patent CN105056740A discloses a kind of skid-mounted type of gas field acidizing waste fluid and waste gas Change control device and its processing method, be provided with being aerated the pH coarse adjustment pond of pipeline, pH fine settings pond in skid, be additionally provided with UNICOM pH The acidproof liquid feeding pump in coarse adjustment pond, respectively with pH coarse adjustment pond, pH fine setting ponds by being aerated the Aeration fan pH coarse adjustment pond of pipeline UNICOM Finely tuned by pipeline and pH between pond by being connected;Also set in skid by coarse adjustment pond add alkali pump, fine setting pond add alkali pump respectively with Coarse adjustment pond and the alkali lye pond of fine setting pond UNICOM, finely tune the spray column of pond UNICOM with pH coarse adjustment pond and pH respectively by pipeline, and Pass through pipeline and the air-introduced machine of spray column UNICOM.Mainly for the treatment of after two phase separator separates liquid export residual acid solution and its The waste gas of association.Fluid-discharge technology flow complexity is returned in device processing acidifying, and needs early stage two phase separator to carry out gas-liquid separation, In-site installation is cumbersome.
Utility model content
The purpose of this utility model be overcome existing processing gas field be acidified return discharge opeing device installation it is complicated and technique is cumbersome The problem of.
Therefore, the utility model provides a kind of packaged type acid solution acid gas integrated treatment unit, including skid, it is described Reactor is installed, reactor head opens up alkali lye inlet and defoamer inlet, and alkali lye inlet passes through pipe in skid Line connects alkali pump of showwing loving care for, and defoamer inlet is connected to defoamer injection pump by pipeline, notes alkali pump and defoamer injection pump is equal In skid;
The arrival end of reactor is connected to suction line, and the mouth of pipe of suction line is device portal, on suction line by Entrance sample tap is offered at nearly device portal, the port of export of reactor is connected to outlet line, and the mouth of pipe of outlet line is dress Put outlet, outlet sample tap is offered in approaching device exit on outlet line;Defoamer inlet is located at close to inlet tube Line one end.
Between also including integrated control cabinet and the tool storage in skid, note alkali pump, defoamer injection pump and instrument Arrange along skid length direction order between storage, between integrated control cabinet is between defoamer injection pump and tool storage and be close to Skid long side is arranged.
The reactor is divided into pipeline mixing portion and slow-released part, and slow-released part connects with suction line, slow-released part Uniform intervals are placed with multiple fluid erosion prevention dividing plates along its length for inner chamber, and pipeline mixing portion connects with outlet line, and pipeline mixes Close partial lumen and be provided with double helix blade along its length, alkali lye inlet and defoamer inlet are opened in slow-released part.
The note alkali pump, defoamer injection pump electrically connect with the controller in integrated control cabinet.
The alkali lye inlet and defoamer inlet are all connected with spray thrower, the spray thrower being connected with alkali lye inlet Alkali lye mouth spray is located at pipeline mixing portion porch, and the defoamer mouth spray for the spray thrower being connected with defoamer inlet is located at In the middle part of slow-released part.
A kind of handling process of packaged type acid solution acid gas integrated treatment unit, comprises the following steps:
Step 1, gas well mouth acidifying return discharge opeing and enter reactor by device portal after reducing pressure by regulating flow;
Step 2, the sampling of entrance sample tap detect sample pH, and control " acid solution pH value-alkali lye addition corresponding table " is true Determine alkali lye dosage, open note alkali pump, add alkali lye to reactor slow-released part, acid solution, acid gas is mixed with alkali lye through piping Partial double helix blade is sufficiently mixed neutralization reaction;Defoamer injection pump is opened simultaneously, is added to reactor slow-released part Enter defoamer, defoamer dosage accounts for 0.03%~0.05% that discharge opeing injection discharge capacity is returned in acidifying;
Step 3, outlet sample tap sampling, detect sample pH, if pH value between 6~8, and detect lighting-up tuyere at HCl contents < 1.9mg/m in gas3, HF content < 100mg/m3, then stop plus the place of discharge opeing returned in alkali, completion gas well mouth acidifying Reason;
Liquid after step 6, neutralization reaction and defoaming is discharged into combustion in situ pond by device outlet, and liquid makes in combustion cell Reclaimed with water pump, gas carries out ignition in combustion cell lighting-up tuyere.
The beneficial effects of the utility model:This packaged type acid solution acid gas integrated treatment dress provided by the utility model Put and its handling process, reactor bearing capacity 3Mpa, without separately being handled after carrying out gas-liquid separation, the acid of gas well mouth discharge Change returns discharge opeing after reducing pressure by regulating flow, is directly entered reactor and is sustained through fluid erosion prevention spacers block, and is reacted with defoamer and eliminate bubble Foam, acid solution are sufficiently mixed neutralization reaction with NaOH solution of the acid gas in mixer entrance and mass concentration 10%~30%, make discharge Liquid pH value 6-8, discharge HCl content < 1.9mg/m in gas3, HF content < 100mg/m3;Realize gas field acidifying return discharge opeing gas, Liquid integrated processing, without two-phase laminated flow, live pipeline connection is quick and convenient, and device is simple to operate, handles efficiently quick, cost It is cheap, eliminate acidifying and return the residual acid of row, acid gas to human body and environmental pollution.
The utility model is described in further details below with reference to accompanying drawing.
Brief description of the drawings
Fig. 1 is the top view of packaged type acid solution acid gas integrated treatment unit.
Fig. 2 is the internal structure schematic diagram of reactor.
Description of reference numerals:1st, device exports;2nd, sample tap is exported;3rd, double helix blade;4th, reactor;5th, alkali lye injects Mouthful;6th, defoamer inlet;7th, entrance sample tap;8th, device portal;9th, alkali pump is noted;10th, defoamer injection pump;11st, comprehensive control Cabinet processed;12nd, between tool storage;13rd, skid;14th, fluid erosion prevention dividing plate;401st, slow-released part;402nd, pipeline mixing portion.
Embodiment
Embodiment 1:
Present embodiments provide a kind of packaged type acid solution acid gas integrated treatment unit as shown in Figure 1, including skid 13, reactor 4 is installed, the top of reactor 4 opens up alkali lye inlet 5 and defoamer inlet 6, alkali lye in the skid 13 Inlet 5 connects alkali pump 9 of showwing loving care for by pipeline, and defoamer inlet 6 is connected to defoamer injection pump 10 by pipeline, notes alkali pump 9 and defoamer injection pump 10 be installed in skid 13;
The arrival end of reactor 4 is connected to suction line, and the mouth of pipe of suction line is device portal 8, on suction line Entrance sample tap 7 is offered at approaching device entrance 8, the port of export of reactor 4 is connected to outlet line, the mouth of pipe of outlet line 1 is exported for device, outlet sample tap 2 is offered at approaching device outlet 1 on outlet line;Defoamer inlet 6, which is located at, to be leaned on Nearly suction line one end.
The course of work of packaged type acid solution acid gas integrated treatment unit is:
The acidifying of gas well mouth discharge returns discharge opeing after reducing pressure by regulating flow, without separately being handled after carrying out gas-liquid separation, directly Reactor 4 is entered by device portal 8, acidifying, which returns discharge opeing and first passes through defoamer in reactor 4, to be defoamed, then is carried out with alkali lye Neutralize, observation device exports 1 defoaming situation and is finely adjusted, and the acid solution and acid gas after defoaming are mixed into pipe reactor Part is closed, is sampled by entrance sample tap 7, detects liquid pH value, control " acid solution pH value-alkali lye addition corresponding table " determines Alkali lye dosage, regulation note alkali pump 9 injects discharge capacity, and acid solution, acid gas and alkali lye is sufficiently mixed by the blender of double helix blade 3 Neutralization reaction, the liquid pH value 6-8 of sample tap 2 is exported, lighting-up tuyere nearby has no irritating odor, HCl contents < in detection gas 1.9mg/m3, HF content < 100mg/m3;Liquid is discharged into combustion in situ pond after neutralization reaction, and water pump can be used in liquid in combustion cell Reclaimed, gas carries out ignition in combustion cell lighting-up tuyere.
This packaged type acid solution acid gas integrated treatment unit provided by the utility model and its handling process, without entering Separately handled after row gas-liquid separation, the acidifying of gas well mouth discharge returns discharge opeing after reducing pressure by regulating flow, is directly entered reactor through anti- Erosion dividing plate 14 stops sustained release, and is reacted with defoamer and eliminate foam, and acid solution is with acid gas in mixer entrance and mass concentration 10% ~30% NaOH solution is sufficiently mixed neutralization reaction, makes discharge liquid pH value 6-8, discharges HCl content < 1.9mg/ in gas m3, HF content < 100mg/m3;Realize that discharge opeing air-liquid integrated treatment is returned in gas field acidifying, without two-phase laminated flow, live pipeline connects Connect quick and convenient, device is simple to operate, handles that efficiently quick, cost is cheap, eliminates acidifying and returns the residual acid of row, acid gas to human body and ring Pollute in border.
Embodiment 2:
On the basis of embodiment 1, in addition to 12 between the integrated control cabinet 11 and tool storage being arranged in skid 13, note 12 arrange along the length direction of skid 13 order between alkali pump 9, defoamer injection pump 10 and tool storage, and integrated control cabinet 11, which is located at, to disappear Between 12 between infusion injection pump 10 and tool storage and be close to the long side of skid 13 arrangement.
Specific arrangement such as Fig. 1, arrangement takes full advantage of the space of skid 13, and total is integrated to be set Meter, while can be actually needed according to scene, illuminator etc. is installed in skid 13, and can be controlled by integrated control cabinet 11 System.
Embodiment 3:
On the basis of embodiment 1, as shown in Fig. 2 the reactor 4 divides for pipeline mixing portion 402 and slow-released part 401, slow-released part 401 connects with suction line, and uniform intervals are placed with multiple erosion controls to the inner chamber of slow-released part 401 along its length Dividing plate 14 is lost, pipeline mixing portion 402 connects with outlet line, and the inner chamber of pipeline mixing portion 402 is provided with double spiral shells along its length Vane piece 3, alkali lye inlet 5 and defoamer inlet 6 are opened in slow-released part 401.
Device reaction device is divided into slow-released part 401 and pipeline mixing portion 402, and the container diameter of slow-released part 401 becomes and subtracted greatly Low flow velocity, and change liquid using fluid erosion prevention dividing plate 14 and flow to, make to return discharge opeing and defoamer is sufficiently mixed reaction;Pipeline mixing unit 402 are divided acid solution, acid gas and alkali lye is sufficiently mixed reaction using double helix blade 3.
Embodiment 4:
On the basis of embodiment 2 and 3, it is described note alkali pump 9, defoamer injection pump 10 with the control in integrated control cabinet 11 Device electrical connection processed.The implantation dosage of note alkali pump 9, defoamer injection pump 10, Scientific Measurement are controlled by integrated control cabinet 11.In order to Improving the efficiency of neutralization reaction and ensure its effect, the alkali lye inlet 5 and defoamer inlet 6 are all connected with spray thrower, The alkali lye mouth spray for the spray thrower being connected with alkali lye inlet 5 is located at the porch of pipeline mixing portion 402, with defoamer inlet The defoamer mouth spray of the spray thrower of 6 connections is located at the middle part of slow-released part 401.
Embodiment 5:
A kind of handling process of packaged type acid solution acid gas integrated treatment unit, comprises the following steps:
Step 1, gas well mouth acidifying return discharge opeing and enter reactor 4 by device portal 8 after reducing pressure by regulating flow;
Step 2, entrance sample tap 7 sample, and detect sample pH, compare " acid solution pH value-alkali lye addition corresponding table " Alkali lye dosage is determined, opens note alkali pump 9, alkali lye is added to the slow-released part 401 of reactor 4, makes acid solution, acid gas and alkali lye by managing The double helix blade 3 of road mixing portion 402 is sufficiently mixed neutralization reaction;Defoamer injection pump 10 is opened simultaneously, to reaction The slow-released part 401 of device 4 adds defoamer, and defoamer dosage accounts for 0.03%~0.05% that discharge opeing injection discharge capacity is returned in acidifying;
Step 3, outlet sample tap 2 sample, detect sample pH, if pH value between 6~8, and detect lighting-up tuyere at HCl contents < 1.9mg/m in gas3, HF content < 100mg/m3, then stop plus the place of discharge opeing returned in alkali, completion gas well mouth acidifying Reason;
Liquid after step 6, neutralization reaction and defoaming is discharged into combustion in situ pond by device outlet 1, and liquid makes in combustion cell Reclaimed with water pump, gas carries out ignition in combustion cell lighting-up tuyere.
It should be noted that lighting-up tuyere refers to combustion cell lighting-up tuyere in step 3;" acid solution pH value-alkali lye addition is corresponding Table " can calculate according to acid amount and ph values, be the given data obtained using routine techniques.
Corresponding implementation is made in following two gas fields using above-mentioned technological process, concrete outcome is as follows:
First, during certain gas field acidizing treatment, it is in terra brown that discharge opeing is returned in discharge, and penetrating odor, foam volume is big, acid solution Viscosity 2.26mpa.s, pH value 1-2, salinity are about 23916.8mg/L, are calcium chloride water type, and it is high to discharge acid gas content in gas Up to 1925ppm.Return after exhaust liquid enters the device, regulation defoamer injection pump adds defoamer by 0.05% ratio, with reference to " sour Liquid pH value-alkali lye addition corresponding table " regulation alkali lye injection pump is pumped into alkali lye, device outlet sample tap sampling observation foam-based This elimination, liquid pH value 6-7, lighting-up tuyere nearby detect HCl content < 1.1ppm.
2nd, row's middle and later periods is returned in certain gas field, and discharge opeing dark brown, penetrating odor are returned in discharge, and entrained foam returns out, acid liquid viscosity 1.05 mpa.s, pH value 5-6, salinity 7367.01mg/L, it is sodium carbonate water type.Return exhaust liquid enter the device after, regulation disappears Infusion injection pump adds defoamer in 0.03% ratio, with reference to " acid solution pH value-alkali lye addition corresponding table " regulation alkali lye injection Pump is pumped into alkali lye, and device outlet sample tap sampling observation foam substantially eliminates, and liquid pH value 7-8, lighting-up tuyere does not detect nearby Acid gas content.
Exemplified as above is only for example, not forming to the scope of protection of the utility model to of the present utility model Limitation, it is every to be belonged to the same or analogous design of the utility model within the scope of protection of the utility model.The present embodiment The part and the well-known components and common structure or conventional means of the structure category industry not described in detail, are not chatted one by one here State.

Claims (5)

1. a kind of packaged type acid solution acid gas integrated treatment unit, including skid(13), it is characterised in that:The skid(13) On reactor is installed(4), reactor(4)Top opens up alkali lye inlet(5)With defoamer inlet(6), alkali lye injection Mouthful(5)Alkali pump of showwing loving care for is connected by pipeline(9), defoamer inlet(6)Defoamer injection pump is connected to by pipeline(10), note Alkali pump(9)With defoamer injection pump(10)It is installed in skid(13)On;
Reactor(4)Arrival end be connected to suction line, the mouth of pipe of suction line is device portal(8), on suction line Approaching device entrance(8)Place offers entrance sample tap(7), reactor(4)The port of export be connected to outlet line, outlet line The mouth of pipe be device outlet(1), exported in approaching device on outlet line(1)Place offers outlet sample tap(2);Defoamer is noted Entrance(6)It is located at close to suction line one end.
2. packaged type acid solution acid gas integrated treatment unit as claimed in claim 1, it is characterised in that:Also include being arranged on Skid(13)On integrated control cabinet(11)Between tool storage(12), note alkali pump(9), defoamer injection pump(10)Deposited with instrument Between putting(12)Along skid(13)Length direction order arranges, integrated control cabinet(11)Positioned at defoamer injection pump(10)Deposited with instrument Between putting(12)Between and be close to skid(13)Long side is arranged.
3. packaged type acid solution acid gas integrated treatment unit as claimed in claim 1, it is characterised in that:The reactor (4)It is divided into pipeline mixing portion(402)And slow-released part(401), slow-released part(401)Connected with suction line, slow-released part (401)Uniform intervals are placed with multiple fluid erosion prevention dividing plates along its length for inner chamber(14), pipeline mixing portion(402)With outlet Line connects, pipeline mixing portion(402)Inner chamber is provided with double helix blade along its length(3), alkali lye inlet(5)And defoamer Inlet(6)It is opened in slow-released part(401).
4. packaged type acid solution acid gas integrated treatment unit as claimed in claim 2, it is characterised in that:The note alkali pump (9), defoamer injection pump(10)And integrated control cabinet(11)Interior controller electrical connection.
5. packaged type acid solution acid gas integrated treatment unit as claimed in claim 3, it is characterised in that:The alkali lye injection Mouthful(5)With defoamer inlet(6)Spray thrower is all connected with, with alkali lye inlet(5)The alkali lye mouth spray of the spray thrower of connection Positioned at pipeline mixing portion(402)Porch, with defoamer inlet(6)The defoamer mouth spray of the spray thrower of connection is positioned at slow Release part(401)Middle part.
CN201720839878.3U 2017-07-12 2017-07-12 A kind of packaged type acid solution acid gas integrated treatment unit Active CN207091088U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107311288A (en) * 2017-07-12 2017-11-03 咸阳川庆鑫源工程技术有限公司 A kind of packaged type acid solution acid gas integrated treatment unit and its handling process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107311288A (en) * 2017-07-12 2017-11-03 咸阳川庆鑫源工程技术有限公司 A kind of packaged type acid solution acid gas integrated treatment unit and its handling process

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