CN105001845A - Foaming drainage agent and drainage method of well bore of gas well applying foaming drainage agent - Google Patents
Foaming drainage agent and drainage method of well bore of gas well applying foaming drainage agent Download PDFInfo
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- CN105001845A CN105001845A CN201510393318.5A CN201510393318A CN105001845A CN 105001845 A CN105001845 A CN 105001845A CN 201510393318 A CN201510393318 A CN 201510393318A CN 105001845 A CN105001845 A CN 105001845A
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- 238000005187 foaming Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000013051 drainage agent Substances 0.000 title abstract 9
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 144
- 239000007788 liquid Substances 0.000 claims abstract description 59
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims abstract description 34
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 claims abstract description 34
- 239000006260 foam Substances 0.000 claims abstract description 31
- 235000019270 ammonium chloride Nutrition 0.000 claims abstract description 17
- 235000010288 sodium nitrite Nutrition 0.000 claims abstract description 17
- 239000003054 catalyst Substances 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims description 79
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 63
- 241000521257 Hydrops Species 0.000 claims description 56
- 206010030113 Oedema Diseases 0.000 claims description 56
- 239000000203 mixture Substances 0.000 claims description 28
- -1 laurilsulfate sodium salt Chemical class 0.000 claims description 22
- 238000004519 manufacturing process Methods 0.000 claims description 18
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 14
- RNMDNPCBIKJCQP-UHFFFAOYSA-N 5-nonyl-7-oxabicyclo[4.1.0]hepta-1,3,5-trien-2-ol Chemical compound C(CCCCCCCC)C1=C2C(=C(C=C1)O)O2 RNMDNPCBIKJCQP-UHFFFAOYSA-N 0.000 claims description 11
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 11
- 230000004913 activation Effects 0.000 claims description 11
- 229950005875 laurilsulfate Drugs 0.000 claims description 11
- 159000000000 sodium salts Chemical class 0.000 claims description 11
- 229960004418 trolamine Drugs 0.000 claims description 11
- 239000003814 drug Substances 0.000 claims description 8
- 239000003345 natural gas Substances 0.000 claims description 7
- 241000219782 Sesbania Species 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 239000013530 defoamer Substances 0.000 claims description 3
- 230000004044 response Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 238000002156 mixing Methods 0.000 abstract description 4
- 238000005086 pumping Methods 0.000 abstract description 3
- 239000004088 foaming agent Substances 0.000 abstract 3
- 238000007599 discharging Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 9
- 238000010276 construction Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 9
- 238000002474 experimental method Methods 0.000 description 8
- 239000008399 tap water Substances 0.000 description 8
- 235000020679 tap water Nutrition 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 235000009508 confectionery Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- XQCFHQBGMWUEMY-ZPUQHVIOSA-N Nitrovin Chemical compound C=1C=C([N+]([O-])=O)OC=1\C=C\C(=NNC(=N)N)\C=C\C1=CC=C([N+]([O-])=O)O1 XQCFHQBGMWUEMY-ZPUQHVIOSA-N 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Geochemistry & Mineralogy (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a foaming drainage agent which is formed by mixing a gas releasing agent and a gas wrapping agent in equal volume, wherein the gas releasing agent is formed by mixing an ammonium chloride solution and a catalyst and the gas wrapping agent is formed by mixing a sodium nitrite solution, a foaming agent and a tackifier. The invention further discloses a drainage method of a well bore of a gas well applying the foaming drainage agent. The drainage method comprises the following steps: S1: determining the volume dose of the foaming drainage agent according to the volume dose of an accumulated liquid in the well bore of the gas well, pumping the foaming drainage agent into the well bore, closing the mouth of the well, and opening the well for gushing after reaction within half an hour, wherein foam generated in the well bore carries the accumulated liquid and spills out of the well bore; S2: defoaming the foam spilling out of the well bore; and S3: continuously adding the foaming agent into the well bore by virtue of a continuous dosing device on the ground and immediately discharging the accumulated liquid generated in the well bore again out of the well bore by virtue of foam. According to the foaming drainage agent and the drainage method of the well bore of the gas well applying the foaming drainage agent disclosed by the invention, the problem that the liquid is accumulated in the well bore is effectively solved by adding the foaming drainage agent and the foaming agent into the well bore and bringing out the accumulated liquid in the well bore out of the well bore by virtue of foam.
Description
Technical field
The present invention relates to Natural gas extraction technical field, particularly the Wellbore of Gas Wells water discharge method of a kind of foaming water discharge agent and application foaming water discharge agent.
Background technology
Gasser is with the prolongation of recovery time, and producing energy can constantly occur tending to end because of decline, and pressure also can constantly reduce; Water simultaneously in stratum constantly can migrate to pit shaft from stratum, when the pressure that the hydrops of local water in pit shaft produces is greater than the pressure of Sweet natural gas payzone, Sweet natural gas just can not successfully be migrated from stratum to pit shaft, and it is too low even without the problem of production capacity that gas well can show production capacity.Because a lot of gas fields reservoir that China is land at present belongs to low hole, hypotonic type reservoir, this problem just shows particularly outstanding.Therefore, gasser has ubiquity because pit shaft hydrops affects production capacity in China.
For ensureing low-voltage and low-yield gas well deliverability, draining must be carried out to the hydrops in Wellbore of Gas Wells.At present, for the gas well producing hydrops, the measure of its draining (liquid) production gas technology mainly contains following several: (1) foam drainaging gas cutting process technology, in pit shaft hydrops, add whipping agent, utilize continuous-tube from shaft bottom nitrogen injection thus produce foam and pit shaft hydrops is discharged; (2) gaslift water drainage-gas recovery technology technology, utilizes the nitrogen injection continuously such as nitrogen car, compressor, the atomization of pit shaft hydrops is lifted to well head; (3) machinery drags for water drainage-gas recovery technology technology, carries out mechanical type fish for by special dredging vehicle to pit shaft hydrops.The equal Shortcomings of these water pumping gas production measures at present, is mainly manifested in: (1) construction is complicated, and cost is high, as foam drainage gas recovery and nitrogen gaslift technology, need employ oversize vehicle etc.; Machinery drags for water pumping gas production to be existed and drags for that liquid speed is slow, construction exists the problems such as potential safety hazard; (2) validity period is short, and limited efficiency, after pit shaft hydrops is discharged, owing to there is drawdown pressure, local water can be migrated to pit shaft again, causes pit shaft hydrops after exceeding certain hour again " to kill " phenomenon of gas-bearing formation, just can repeat last Problems existing again.
Therefore, for the hydrops problem that China's gas well liquid loading occurs, still lack at present and a set ofly ensure gas well quantity-produced, effective Technology.
Summary of the invention
In view of this, be necessary to provide a kind of foaming water discharge agent of effective solution Wellbore of Gas Wells hydrops and the Wellbore of Gas Wells water discharge method of application foaming water discharge agent.
A kind of foaming water discharge agent, described foaming water discharge agent by isopyknic bubble release agent, wrap up in gas agent and mix; Described bubble release agent is formed by the catalyst mix of 4-6mol/L ammonium chloride solution, 3-5g/L, described in wrap up in gas agent and mixed by the sodium nitrite solution of 4-6mol/L, the whipping agent of 5-10g/L, the tackifier of 6-10g/L.
Present invention also offers a kind of Wellbore of Gas Wells water discharge method applying foaming water discharge agent, comprise the following steps:
S1: Wellbore of Gas Wells hydrops initial activation:
For the gas well seriously stopped production because of hydrops, obtain the volume of Wellbore of Gas Wells hydrops, volume ratio according to described pit shaft hydrops and foaming water discharge agent is 1:1 ~ 4:3, determine the volume of described foaming water discharge agent, described foaming water discharge agent is pumped into pit shaft, close well head, after question response half an hour, open flow makes the foamover hydrops produced in described pit shaft overflow pit shaft;
Described foaming water discharge agent by isopyknic bubble release agent, wrap up in gas agent and mix; Described bubble release agent is formed by the catalyst mix of 4-6mol/L ammonium chloride solution, 3-5g/L, described in wrap up in gas agent and mixed by the Sodium Nitrite of 4-6mol/L, the whipping agent of 5-10g/L, the tackifier of 6-10g/L;
S2: the foam defoaming treatment of overflowing pit shaft:
The froth breaking liquid that the defoamer adding 5g/L is made carries out defoaming treatment to the foam carrying out pit shaft, when the Liquid output of hydrops in pit shaft reduces, recovers the normal production of gas well;
S3: the continuous lifting of Wellbore of Gas Wells hydrops:
When producing again hydrops in pit shaft described after gas well returns to normal production, by ground device for continuously adding medicine into, in pit shaft, the whipping agent of 3-5g/L is added continuously according to the hydrops amount produced in pit shaft, utilize natural gas flow, to the foam that the agitaion of hydrops produces, the described hydrops produced again in pit shaft is discharged pit shaft, maintain the normal continuous seepage of gas well.
The Wellbore of Gas Wells water discharge method of foaming water discharge agent provided by the invention and application foaming water discharge agent, by adding foaming water discharge agent and whipping agent in pit shaft, bubble release agent is utilized to utilize natural gas flow to take the hydrops produced again in pit shaft out of pit shaft to the foam that the agitaion of hydrops produces with even, the fine and closely woven foam and interpolation whipping agent wrapping up in gas agent equal-volume mixing generation, effectively hydrops (draining) problem of solution Wellbore of Gas Wells.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the Wellbore of Gas Wells water discharge method of the application foaming water discharge agent that embodiment of the present invention provides.
Following embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
A kind of foaming water discharge agent that embodiment of the present invention provides, foaming water discharge agent by isopyknic bubble release agent, wrap up in gas agent and mix; Bubble release agent is formed by the catalyst mix of 4-6mol/L ammonium chloride solution, 3-5g/L, wraps up in gas agent and is mixed by the sodium nitrite solution of 4-6mol/L, the whipping agent of 5-10g/L, the tackifier of 6-10g/L.
Concrete, bubble release agent, the principle of work wrapping up in gas agent are: by isopyknic bubble release agent with wrap up in gas agent and mix, and can produce uniformly, fine and closely woven foam, and be base fluid with ammonium chloride solution in bubble release agent, catalyzer is auxiliary liquid; Wrapping up in gas agent take sodium nitrite solution as base fluid, and tackifier, whipping agent are auxiliary liquid; Ammonium chloride (NH
4and Sodium Nitrite (NaNO Cl)
2) reaction generation nitrogen (N
2).
Bubble release agent, wrap up in the thermochemical equation of ammonium chloride and Sodium Nitrite in gas agent:
ΔH
0＝-332.58kJ/mol
1mol NaNO
2with 1mol NH
4cl exothermic heat of reaction 332.58kJ.
Further, catalyzer is thionamic acid.
Concrete, catalyzer is for regulating the speed of chemical reaction, and temperature is higher, and the consumption of catalyzer is fewer.Due to gas well more shallow time formation temperature lower, when gas well is darker, formation temperature is higher, and needing when therefore gas well is more shallow increases the consumption of catalyzer, suitably can reduce the consumption of catalyzer when gas well is darker.
Further, whipping agent by mass ratio be the laurilsulfate sodium salt (SDS) of 5:4:1, polyoxyethylene nonylphenol ether (OP-10) and trolamine mix.
Concrete, it is strong that whipping agent has foaming power, temperature resistance, anti-salt and fuel tolerance capability.
Further, tackifier by etc. the Rhizoma amorphophalli powder of quality, sesbania gum mixture form.
Concrete, tackifier play the effect of stable foam.
As shown in Figure 1, present invention also offers a kind of Wellbore of Gas Wells water discharge method applying foaming water discharge agent, comprise the following steps:
S1: Wellbore of Gas Wells hydrops initial activation:
For the gas well seriously stopped production because of hydrops, obtain the volume of Wellbore of Gas Wells hydrops, volume ratio according to pit shaft hydrops and foaming water discharge agent is 1:1 ~ 4:3, determine the volume of foaming water discharge agent, foaming water discharge agent is pumped into pit shaft, close well head, after question response half an hour, open flow makes the foamover hydrops produced in pit shaft overflow pit shaft;
Foaming water discharge agent by isopyknic bubble release agent, wrap up in gas agent and mix; Bubble release agent is formed by the catalyst mix of 4-6mol/L ammonium chloride solution, 3-5g/L, wraps up in gas agent and is mixed by the Sodium Nitrite of 4-6mol/L, the whipping agent of 5-10g/L, the tackifier of 6-10g/L.
S2: the foam defoaming treatment of overflowing pit shaft:
The froth breaking liquid that the defoamer adding 5g/L is made carries out defoaming treatment to the foam carrying out pit shaft, when the Liquid output of hydrops in pit shaft reduces, recovers the normal production of gas well.
Concrete, when the Liquid output of hydrops reduces in tubing pressure rising, pit shaft, when jitter phenomenon appears in relief line, recover the normal production capacity of gas well.
S3: the continuous lifting of Wellbore of Gas Wells hydrops:
When producing again hydrops in pit shaft after gas well returns to normal production, by ground device for continuously adding medicine into, in pit shaft, the whipping agent of 3-5g/L is added continuously according to the hydrops amount produced in pit shaft, utilize natural gas flow, to the foam that the agitaion of pit shaft hydrops produces, the hydrops produced again in pit shaft is discharged pit shaft, maintain the normal continuous seepage of gas well.
Concrete, adopt and wrap up in gas agent and react with bubble release agent the foam produced the hydrops in pit shaft is discharged pit shaft, have and construct simply, cost is low, workable, without the need to employing the advantage of main equipment.
Further, catalyzer is thionamic acid.
Concrete, catalyzer is for regulating the speed of chemical reaction, and temperature is higher, and the catalytic effect of catalyzer is better.Due to gas well more shallow time formation temperature lower, when gas well is darker, formation temperature is higher, and needing when therefore gas well is more shallow increases the consumption of catalyzer, suitably can reduce the consumption of catalyzer when gas well is darker.
Further, whipping agent by mass ratio be the laurilsulfate sodium salt (SDS) of 5:4:1, polyoxyethylene nonylphenol ether (OP-10) and trolamine mix.
Concrete, it is strong that whipping agent has foaming power, temperature resistance, anti-salt and fuel tolerance capability.
Further, tackifier are formed by the Rhizoma amorphophalli powder of quality, sesbania gum mixture.
Concrete, tackifier play the effect of stable foam.
Further, the preferred pressure-resistant explosion-proof ram pump of device for continuously adding medicine into.
Concrete, pressure-resistant explosion-proof ram pump has withstand voltage height (can reach 35MPa), explosion-proof and can realize continous way " drop " medicine charging function, at remote areas without electricity, can select to adopt solar energy power generating to provide electric power for device for continuously adding medicine into.
The embodiment of the present invention adopts tap water wellbore hole simulator hydrops, beaker or graduated cylinder Simulated gas well shaft, and simulated experiment result is as follows:
Embodiment 1
Experimental technique: take from water 100ml, bubble release agent 50ml, wraps up in gas agent 50ml; Wherein, 50ml bubble release agent is mixed to get by the ammonium chloride of 6mol/L and the catalyzer of 5g/L; It is be mixed to get by the whipping agent of the Sodium Nitrite of 6mol/L, 10g/L, the tackifier of 10g/L that 50ml wraps up in gas agent.
Tap water to be poured in 5L beaker and to be heated to 80 DEG C, add bubble release agent and wrap up in gas agent, generating with self-rising foam and observe the remaining liquid measure of beaker bottom and calculate the lather volume taking liquid efficiency and generation; The mixture of laurilsulfate sodium salt (SDS) that 5g/L mass ratio is 5:4:1, polyoxyethylene nonylphenol ether (OP-10), trolamine is added by the volume of beaker bottom raffinate, pass into air in bottom by 100ml/min flow, observe and calculate now take liquid efficiency.Take liquid efficiency in table 1.
Table 1: take liquid efficiency
| Construction process | Initial activation | Continuous lifting | Lather volume |
| Take liquid efficiency | 80％ | 100％ | 1500ml |
Embodiment 2:
Experimental technique: take from water 100ml, bubble release agent 50ml, wraps up in gas agent 50ml; Wherein, 50ml bubble release agent is mixed to get by the ammonium chloride of 4mol/L and the catalyzer of 3g/L; It is be mixed to get by the whipping agent of the Sodium Nitrite of 4mol/L, 5g/L, the tackifier of 6g/L that 50ml wraps up in gas agent.
Tap water to be poured in 5L beaker and to be heated to 80 DEG C, add bubble release agent and wrap up in gas agent, generating with self-rising foam and observe the remaining liquid measure of beaker bottom and calculate the lather volume taking liquid efficiency and generation; The mixture of laurilsulfate sodium salt (SDS) that 3g/L mass ratio is 5:4:1, polyoxyethylene nonylphenol ether (OP-10), trolamine is added by the volume of beaker bottom raffinate, pass into air in bottom by 100ml/min flow, observe and calculate now take liquid efficiency.Take liquid efficiency in table 2.
Table 2: take liquid efficiency
| Construction process | Initial activation | Continuous lifting | Lather volume |
| Take liquid efficiency | 55％ | 95％ | 1000ml |
Embodiment 3:
Experimental technique: take from water 100ml, bubble release agent 50ml, wraps up in gas agent 50ml; Wherein, 50ml bubble release agent is mixed to get by the ammonium chloride of 5mol/L and the catalyzer of 4g/L; It is be mixed to get by the whipping agent of the Sodium Nitrite of 5mol/L, 7g/L, the tackifier of 8g/L that 50ml wraps up in gas agent.
Tap water to be poured in 5L beaker and to be heated to 80 DEG C, add bubble release agent and wrap up in gas agent, generating with self-rising foam and observe the remaining liquid measure of beaker bottom and calculate the lather volume taking liquid efficiency and generation; The mixture of laurilsulfate sodium salt (SDS) that 3g/L mass ratio is 5:4:1, polyoxyethylene nonylphenol ether (OP-10), trolamine is added by the volume of beaker bottom raffinate, pass into air in bottom by 100ml/min flow, observe and calculate now take liquid efficiency.Take liquid efficiency in table 3.
Table 3: take liquid efficiency
| Construction process | Initial activation | Continuous lifting | Lather volume |
| Take liquid efficiency | 65％ | 97％ | 1250ml |
Embodiment 4:
Experimental technique: take from water 150ml, bubble release agent 75ml, wraps up in gas agent 75ml; Wherein, 75ml bubble release agent is mixed to get by the ammonium chloride of 6mol/L and the catalyzer of 5g/L; It is be mixed to get by the whipping agent of the Sodium Nitrite of 6mol/L, 10g/L, the tackifier of 10g/L that 75ml wraps up in gas agent.
Tap water to be poured in 5L beaker and to be heated to 100 DEG C, add bubble release agent and wrap up in gas agent, generating with self-rising foam and observe the remaining liquid measure of beaker bottom and calculate the lather volume taking liquid efficiency and generation; The mixture of laurilsulfate sodium salt (SDS) that 4g/L mass ratio is 5:4:1, polyoxyethylene nonylphenol ether (OP-10), trolamine is added by the volume of beaker bottom raffinate, pass into air in bottom by 100ml/min flow, observe and calculate now take liquid efficiency.Take liquid efficiency in table 4.
Table 4: take liquid efficiency
| Construction process | Initial activation | Continuous lifting | Lather volume |
| Take liquid efficiency | 100％ | —— | 2500ml |
Embodiment 5:
Experimental technique: take from water 200ml, bubble release agent 75ml, wraps up in gas agent 75ml; Wherein, 75ml bubble release agent is mixed to get by the ammonium chloride of 6mol/L and the catalyzer of 5g/L; It is be mixed to get by the whipping agent of the Sodium Nitrite of 6mol/L, 10g/L, the tackifier of 10g/L that 75ml wraps up in gas agent.
Tap water to be poured in 5L beaker and to be heated to 100 DEG C, add bubble release agent and wrap up in gas agent, generating with self-rising foam and observe the remaining liquid measure of beaker bottom and calculate the lather volume taking liquid efficiency and generation; The mixture of laurilsulfate sodium salt (SDS) that 4g/L mass ratio is 5:4:1, polyoxyethylene nonylphenol ether (OP-10), trolamine is added by the volume of beaker bottom raffinate, pass into air in bottom by 100ml/min flow, observe and calculate now take liquid efficiency.Take liquid efficiency in table 5.
Table 5: take liquid efficiency
| Construction process | Initial activation | Continuous lifting | Lather volume |
| Take liquid efficiency | 85％ | 100％ | 2500ml |
Embodiment 6:
Experimental technique: take from water 200ml, bubble release agent 75ml, wraps up in gas agent 75ml; Wherein, 75ml bubble release agent is mixed to get by the ammonium chloride of 4mol/L and the catalyzer of 3g/L; It is be mixed to get by the whipping agent of the Sodium Nitrite of 4mol/L, 5g/L, the tackifier of 6g/L that 75ml wraps up in gas agent.
Tap water to be poured in 5L beaker and to be heated to 80 DEG C, add bubble release agent and wrap up in gas agent, generating with self-rising foam and observe the remaining liquid measure of beaker bottom and calculate the lather volume taking liquid efficiency and generation; The mixture of laurilsulfate sodium salt (SDS) that 3g/L mass ratio is 5:4:1, polyoxyethylene nonylphenol ether (OP-10), trolamine is added by the volume of beaker bottom raffinate, pass into air in bottom by 100ml/min flow, observe and calculate now take liquid efficiency.Take liquid efficiency in table 6.
Table 6: take liquid efficiency
| Construction process | Initial activation | Continuous lifting | Lather volume |
| Take liquid efficiency | 40％ | 90％ | 1650ml |
Embodiment 7:
Experimental technique: take from water 120ml, bubble release agent 50ml, wraps up in gas agent 50ml; Wherein, 50ml bubble release agent is mixed to get by the ammonium chloride of 4mol/L and the catalyzer of 5g/L; It is be mixed to get by the whipping agent of the Sodium Nitrite of 4mol/L, 5g/L, the tackifier of 6g/L that 50ml wraps up in gas agent.
Tap water to be poured in 5L beaker and to be heated to 80 DEG C, add bubble release agent and wrap up in gas agent, generating with self-rising foam and observe the remaining liquid measure of beaker bottom and calculate the lather volume taking liquid efficiency and generation; The mixture of laurilsulfate sodium salt (SDS) that 3g/L mass ratio is 5:4:1, polyoxyethylene nonylphenol ether (OP-10), trolamine is added by the volume of beaker bottom raffinate, pass into air in bottom by 100ml/min flow, observe and calculate now take liquid efficiency.Take liquid efficiency in table 7.
Table 7: take liquid efficiency
| Construction process | Initial activation | Continuous lifting | Lather volume |
| Take liquid efficiency | 60％ | 95％ | 1500ml |
The Wellbore of Gas Wells water discharge method of foaming water discharge agent provided by the invention and application foaming water discharge agent, its principle of work is: the gas well seriously, stopped production for hydrops, by the mode of foam row hydrops by the gas well " activation " of hydrops, pit shaft hydrops is carried out pit shaft by the foam namely produced by there is chemical reaction in pit shaft, and gas well is returned to normal production; Realize " drip " dosing by device for continuously adding medicine into, ensure the later stage enter pit shaft hydrops can in time, continuous lifting goes out pit shaft, realizes the continuous seepage of gas well.
Be understandable that, for the person of ordinary skill of the art, other various corresponding change and distortion can be made by technical conceive according to the present invention, and all these change the protection domain that all should belong to the claims in the present invention with distortion.
Claims (9)
1. a foaming water discharge agent, is characterized in that: described foaming water discharge agent by isopyknic bubble release agent, wrap up in gas agent and mix; Described bubble release agent is formed by the catalyst mix of 4-6mol/L ammonium chloride solution, 3-5g/L, described in wrap up in gas agent and mixed by the sodium nitrite solution of 4-6mol/L, the whipping agent of 5-10g/L, the tackifier of 6-10g/L.
2. foaming water discharge agent according to claim 1, is characterized in that: described catalyzer is thionamic acid.
3. foaming water discharge agent according to claim 1, is characterized in that: described whipping agent by mass ratio be the laurilsulfate sodium salt (SDS) of 5:4:1, polyoxyethylene nonylphenol ether (OP-10) and trolamine mix.
4. foaming water discharge agent according to claim 1, is characterized in that: described tackifier by etc. the Rhizoma amorphophalli powder of quality, sesbania gum mixture form.
5. a Wellbore of Gas Wells water discharge method for the foaming water discharge agent of application as described in Claims 1 to 4 any one, is characterized in that: comprise the following steps:
S1: Wellbore of Gas Wells hydrops initial activation:
For the gas well seriously stopped production because of hydrops, obtain the volume of Wellbore of Gas Wells hydrops, volume ratio according to described pit shaft hydrops and foaming water discharge agent is 1:1 ~ 4:3, determine the volume of described foaming water discharge agent, described foaming water discharge agent is pumped into pit shaft, close well head, after question response half an hour, open flow makes the foamover hydrops produced in described pit shaft overflow pit shaft;
Described foaming water discharge agent by isopyknic bubble release agent, wrap up in gas agent and mix; Described bubble release agent is formed by the catalyst mix of 4-6mol/L ammonium chloride solution, 3-5g/L, described in wrap up in gas agent and mixed by the Sodium Nitrite of 4-6mol/L, the whipping agent of 5-10g/L, the tackifier of 6-10g/L;
S2: the foam defoaming treatment of overflowing pit shaft:
The froth breaking liquid that the defoamer adding 5g/L is made carries out defoaming treatment to the foam carrying out pit shaft, when the Liquid output of hydrops in pit shaft reduces, recovers the normal production of gas well;
S3: the continuous lifting of Wellbore of Gas Wells hydrops:
When producing again hydrops in pit shaft described after gas well returns to normal production, by ground device for continuously adding medicine into, in pit shaft, the whipping agent of 3-5g/L is added continuously according to the hydrops amount produced in pit shaft, utilize natural gas flow, to the foam that the agitaion of hydrops produces, the described hydrops produced again in pit shaft is discharged pit shaft, maintain the normal continuous seepage of gas well.
6. Wellbore of Gas Wells water discharge method according to claim 5, is characterized in that: described catalyzer is thionamic acid.
7. the Wellbore of Gas Wells water discharge method according to claim 5 or 6, is characterized in that: described whipping agent by mass ratio be the laurilsulfate sodium salt (SDS) of 5:4:1, polyoxyethylene nonylphenol ether (OP-10) and trolamine mix.
8. the Wellbore of Gas Wells water discharge method according to claim 5 or 6, is characterized in that: described tackifier by etc. the Rhizoma amorphophalli powder of quality, sesbania gum mix.
9. the Wellbore of Gas Wells water discharge method according to claim 5 or 6, is characterized in that: described device for continuously adding medicine into is pressure-resistant explosion-proof ram pump.
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| CN110938418A (en) * | 2019-11-23 | 2020-03-31 | 克拉玛依新科澳石油天然气技术股份有限公司 | Deep well foam oil increasing agent and preparation method thereof |
| CN110938418B (en) * | 2019-11-23 | 2022-04-15 | 克拉玛依新科澳石油天然气技术股份有限公司 | Deep well foam oil increasing agent and preparation method thereof |
| CN113736440A (en) * | 2021-09-18 | 2021-12-03 | 王陆瑶 | Yield increasing and foam discharging agent and preparation method and application thereof |
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