CN110005385A - A kind of pit shaft and reservoir blockages relieving process - Google Patents
A kind of pit shaft and reservoir blockages relieving process Download PDFInfo
- Publication number
- CN110005385A CN110005385A CN201910282277.0A CN201910282277A CN110005385A CN 110005385 A CN110005385 A CN 110005385A CN 201910282277 A CN201910282277 A CN 201910282277A CN 110005385 A CN110005385 A CN 110005385A
- Authority
- CN
- China
- Prior art keywords
- oil pipe
- pit shaft
- blockages relieving
- reservoir
- plugging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 35
- 230000008569 process Effects 0.000 title claims abstract description 25
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 31
- 230000000694 effects Effects 0.000 claims abstract description 11
- 230000000903 blocking effect Effects 0.000 claims abstract description 10
- 239000003814 drug Substances 0.000 claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 230000005484 gravity Effects 0.000 claims description 9
- 239000004615 ingredient Substances 0.000 claims description 8
- 239000004094 surface-active agent Substances 0.000 claims description 8
- 230000007797 corrosion Effects 0.000 claims description 7
- 238000005260 corrosion Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 238000006396 nitration reaction Methods 0.000 claims description 6
- -1 corrosion inhibiter Substances 0.000 claims description 5
- 239000003513 alkali Substances 0.000 claims description 3
- 239000002270 dispersing agent Substances 0.000 claims description 3
- 230000003381 solubilizing effect Effects 0.000 claims description 2
- 239000002981 blocking agent Substances 0.000 claims 1
- 238000013329 compounding Methods 0.000 claims 1
- 239000000945 filler Substances 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- 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
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The present invention relates to a kind of pit shaft and reservoir blockages relieving processes, it includes pit shaft oil pipe de-plugging process and reservoir blockages relieving technique, it is characterised in that: the pit shaft oil pipe de-plugging process includes the following steps: step 1: oil pipe investment temporarily blocks up stick；Step 2: plunger pump injects 300~600L of oil pipe de-plugging agent, 5~15h of closing well through pressure gauge cock；Step 3: slowly reaction residue is taken in emptying out of；Step 4: step 3 is repeated, cleans repeatedly, reaches dredging oil pipe, release the effect of blocking.The reservoir blockages relieving technique includes the following steps: step A: the medicament using plunger pump or cementing truck to oil pipe filling setting, closing well 36h；Step B: raffinate is taken in emptying out of；Step C: repeating step B, clean repeatedly, achievees the effect that release blocking.The present invention has the advantages that slow physical-chemical reaction occurs for organic and inorganic dirt in de-plugging agent and well, tamper skeleton is broken, filler is dissolved, is repeatedly cleaned repeatedly, emptying takes dirt in well out of.
Description
Technical field
The present invention relates to pit shaft and reservoir blockages relieving field, specifically a kind of pit shaft and reservoir blockages relieving process.
Background technique
Oil pipe block releasing technique refers in drilling well and later period production process, unavoidably will cause external liquid and enters reservoir,
Pit shaft is slowly flowed back into process of production, and being gathered into dirt and resulting in blockage influences gas well liquid loading reservoir blockages relieving technology and refer to producing
And during reservoir reconstruction, since laboratory test can not accurately simulate reservoir environment transitivity, inevitably reservoir is produced
Raw certain injury.Simultaneously with production, nearby environment changes for wellblock, and reservoir permeability also changes therewith, stratum Water permeability
Change, based on two factors, reservoir can show the situation of coming to harm when certain, and reservoir blockages relieving mainly eliminates reservoir
Blocking is realized and increases gas-liquid handling capacity, and individual well gas yield is improved.
De-plugging agent has acid, alkalinity and neutral three kinds of chemical agents at present, belongs to hazardous chemical, medicament and its residual
Object has pollution to environment, is hazardous to the human body, and acid medicine is to underground steel equipment tube corrosion.
Summary of the invention
The present invention provides a kind of pit shaft and reservoir blockages relieving process to solve the above technological deficiency.
In order to solve the above technical problems, technical solution provided by the invention are as follows: a kind of pit shaft and reservoir blockages relieving process,
It includes pit shaft oil pipe de-plugging process and reservoir blockages relieving technique, it is characterised in that: the pit shaft oil pipe de-plugging process includes such as
Lower step:
Step 1: oil pipe investment temporarily blocks up stick；
Step 2: plunger pump injects 300~600L of oil pipe de-plugging agent, 5~15h of closing well through pressure gauge cock；
Step 3: slowly reaction residue is taken in emptying out of；
Step 4: step 3 is repeated, cleans repeatedly, reaches dredging oil pipe, release the effect of blocking.
The reservoir blockages relieving technique includes the following steps:
Step A: the medicament using plunger pump or cementing truck to oil pipe filling setting, closing well 36h；
Step B: raffinate is taken in emptying out of；
Step C: repeating step B, clean repeatedly, achievees the effect that release blocking.
As an improvement, the de-plugging agent in the step two is RS-4 de-plugging agent and RS-4 п de-plugging agent.
As an improvement, the pH value of the RS-4 de-plugging agent is 12, specific gravity 1.0-1.1, alkali, dispersing agent, solubilising is complexed
A variety of effective ingredients such as surfactant compound.
As an improvement, the pH value of the RS-4 п de-plugging agent is less than 4, specific gravity 1.0-1.1, with nitration mixture, corrosion inhibiter, surface
A variety of effective ingredients such as activating agent compound.
As an improvement, the medicament pH value, less than 4, specific gravity 0.9-1.0 is more with nitration mixture, corrosion inhibiter, surfactant etc.
Kind effective ingredient compounds.
The present invention has the advantages that slow object occurs for organic and inorganic dirt in de-plugging agent and well with similar compatibility principle
Physicochemical reaction, breaks tamper skeleton, dissolves filler, is repeatedly cleaned, is vented dirt band repeatedly under gas-liquid agitation
It out in well, realizes and releases oil pipe blocking purpose, equally using organic dirt in similar compatibility principle dissolution reservoir, in rock surface
Wetting absorption lowers water flooding by duct capillary force, enhances gas-liquid handling capacity.
Detailed description of the invention
Fig. 1 is the result schematic diagram of the embodiment one of a kind of pit shaft of the invention and reservoir blockages relieving process.
Fig. 2 is the comparison diagram of the embodiment one of a kind of pit shaft of the invention and reservoir blockages relieving process.
Fig. 3 is the result schematic diagram of the embodiment two of a kind of pit shaft of the invention and reservoir blockages relieving process.
Fig. 4 is the comparison diagram of the embodiment two of a kind of pit shaft of the invention and reservoir blockages relieving process.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings.
A kind of pit shaft and reservoir blockages relieving process, it includes pit shaft oil pipe de-plugging process and reservoir blockages relieving technique, described
Pit shaft oil pipe de-plugging process include the following steps:
Step 1: oil pipe investment temporarily blocks up stick；
Step 2: plunger pump injects 300~600L of oil pipe de-plugging agent, 5~15h of closing well through pressure gauge cock；
Step 3: slowly reaction residue is taken in emptying out of；
Step 4: step 3 is repeated, cleans repeatedly, reaches dredging oil pipe, release the effect of blocking.
The reservoir blockages relieving technique includes the following steps:
Step A: the medicament using plunger pump or cementing truck to oil pipe filling setting, closing well 36h；
Step B: raffinate is taken in emptying out of；
Step C: repeating step B, clean repeatedly, achievees the effect that release blocking.
De-plugging agent in the step two is RS-4 de-plugging agent and RS-4 п de-plugging agent.
The pH value of the RS-4 de-plugging agent is 12, specific gravity 1.0-1.1, alkali, dispersing agent, solubilizing surfactant is complexed
It is compounded etc. a variety of effective ingredients.
For the pH value of the RS-4 п de-plugging agent less than 4, specific gravity 1.0-1.1 is more with nitration mixture, corrosion inhibiter, surfactant etc.
Kind effective ingredient compounds.
The medicament pH value is less than 4, specific gravity 0.9-1.0, with nitration mixture, corrosion inhibiter, surfactant etc. it is a variety of effectively at
Part compounds.
Embodiment one:
By the way of well head medicine-adding, ground emptying, the activity duration 12 days, 6.5 tons of de-plugging agent, Xie Shui locked 2.5 tons of agent, in fact
Applying RS-4 de-plugging agent and RS-4 п de-plugging agent, alternately filling, open flow, filling circulation technology, the sampling of de-plugging agent open flow show very dirty, face
Color nigrescence is not penetrating, and open flow goes out liquid and goes out dirt significant effect.
Embodiment two:
By the way of well head medicine-adding, ground emptying, the activity duration 25 days, 7.3 tons of de-plugging agent, Xie Shui locked 3.0 tons of agent, in fact
Apply acid de-plugging agent alkalinity de-plugging agent alternating filling-open flow-filling circulation technology.
The present invention and its embodiments have been described above, this description is no restricted, shown in the drawings
Only one of embodiments of the present invention, actual structure is not limited to this.All in all if the ordinary skill of this field
Personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution phase
As frame mode and embodiment, be within the scope of protection of the invention.
Claims (5)
1. a kind of pit shaft and reservoir blockages relieving process, it includes pit shaft oil pipe de-plugging process and reservoir blockages relieving technique, feature
Be: the pit shaft oil pipe de-plugging process includes the following steps:
Step 1: oil pipe investment temporarily blocks up stick；
Step 2: plunger pump injects 300~600L of oil pipe de-plugging agent, 5~15h of closing well through pressure gauge cock；
Step 3: slowly reaction residue is taken in emptying out of；
Step 4: step 3 is repeated, cleans repeatedly, reaches dredging oil pipe, release the effect of blocking.
The reservoir blockages relieving technique includes the following steps:
Step A: the medicament using plunger pump or cementing truck to oil pipe filling setting, closing well 36h；
Step B: raffinate is taken in emptying out of；
Step C: repeating step B, clean repeatedly, achievees the effect that release blocking.
2. a kind of pit shaft according to claim 1 and reservoir blockages relieving process, it is characterised in that: in the step two
De-plugging agent be RS-4 de-plugging agent and RS-4 п de-plugging agent.
3. a kind of pit shaft according to claim 2 and reservoir blockages relieving process, it is characterised in that: the RS-4 de-plugging
The pH value of agent is 12, specific gravity 1.0-1.1, to be complexed a variety of effective ingredients such as alkali, dispersing agent, solubilizing surfactant compounding
At.
4. a kind of pit shaft according to claim 2 and reservoir blockages relieving process, it is characterised in that: the RS-4 п solution
The pH value of blocking agent is less than 4, specific gravity 1.0-1.1, is compounded with a variety of effective ingredients such as nitration mixture, corrosion inhibiter, surfactant.
5. a kind of pit shaft according to claim 1 and reservoir blockages relieving process, it is characterised in that: the medicament pH value
Less than 4, specific gravity 0.9-1.0 is compounded with a variety of effective ingredients such as nitration mixture, corrosion inhibiter, surfactant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910282277.0A CN110005385A (en) | 2019-04-09 | 2019-04-09 | A kind of pit shaft and reservoir blockages relieving process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910282277.0A CN110005385A (en) | 2019-04-09 | 2019-04-09 | A kind of pit shaft and reservoir blockages relieving process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110005385A true CN110005385A (en) | 2019-07-12 |
Family
ID=67170825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910282277.0A Pending CN110005385A (en) | 2019-04-09 | 2019-04-09 | A kind of pit shaft and reservoir blockages relieving process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110005385A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116591649A (en) * | 2023-05-24 | 2023-08-15 | 固安国勘石油技术有限公司 | Reservoir blocking and water locking agent for gas well, design method, preparation method and application |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101691839A (en) * | 2009-09-30 | 2010-04-07 | 陕西中孚石油技术有限责任公司 | Ultra-low resistance acid-type microemulsion plugging removal and stimulation technology for low permeability oil well |
| US20110214857A1 (en) * | 2010-03-03 | 2011-09-08 | Halliburton Energy Services, Inc. | Ammonium halide as gelation retarder for crosslinkable polymer compositions |
| CN102746838A (en) * | 2011-04-22 | 2012-10-24 | 中国石油天然气股份有限公司 | Blocking remover for gas well shaft |
| CN102775975A (en) * | 2012-07-19 | 2012-11-14 | 中国石油天然气股份有限公司 | Blocking remover for oil well reservoir |
| CN106811186A (en) * | 2017-01-12 | 2017-06-09 | 大庆市杰森钻采助剂厂 | A kind of acidification blocking remover |
-
2019
- 2019-04-09 CN CN201910282277.0A patent/CN110005385A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101691839A (en) * | 2009-09-30 | 2010-04-07 | 陕西中孚石油技术有限责任公司 | Ultra-low resistance acid-type microemulsion plugging removal and stimulation technology for low permeability oil well |
| US20110214857A1 (en) * | 2010-03-03 | 2011-09-08 | Halliburton Energy Services, Inc. | Ammonium halide as gelation retarder for crosslinkable polymer compositions |
| CN102746838A (en) * | 2011-04-22 | 2012-10-24 | 中国石油天然气股份有限公司 | Blocking remover for gas well shaft |
| CN102775975A (en) * | 2012-07-19 | 2012-11-14 | 中国石油天然气股份有限公司 | Blocking remover for oil well reservoir |
| CN106811186A (en) * | 2017-01-12 | 2017-06-09 | 大庆市杰森钻采助剂厂 | A kind of acidification blocking remover |
Non-Patent Citations (2)
| Title |
|---|
| 张耀刚: "气井井筒有机解堵工艺技术的应用", 《天然气工业》 * |
| 李鹏 等: "靖边气田开发中后期气井增产的几种方法介绍", 《石油化工应用》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116591649A (en) * | 2023-05-24 | 2023-08-15 | 固安国勘石油技术有限公司 | Reservoir blocking and water locking agent for gas well, design method, preparation method and application |
| CN116591649B (en) * | 2023-05-24 | 2023-11-21 | 固安国勘石油技术有限公司 | Reservoir blocking and water locking agent for gas well, design method, preparation method and application |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100510274C (en) | Construction method of enclosing level rotary-jet pile hole-mouth using double-liquid slip jection method | |
| AR062045A1 (en) | HETEROGENIC PLACEMENT OF SHARPENING AGENTS IN AN FRACTURE WITH EXTRAIBLE CHANNEL TRAINER FILLING | |
| CN110578505B (en) | Drilling deslagging and oscillation fracturing gas extraction system and method based on nano fluid | |
| CN103775096B (en) | A kind of shield launching method of soft layer | |
| CN110005385A (en) | A kind of pit shaft and reservoir blockages relieving process | |
| DE68906650T2 (en) | METHOD FOR CEMENTING PLATFORM LEGS. | |
| CN104987856B (en) | Offshore drilling fluid pressurization sealing agent and its application process | |
| CN102505944B (en) | Water sealing method for replacing mud in freezing holes with slow setting cement grout | |
| KR100806938B1 (en) | A grouting apparatus and method for groundwater wells which can be injected by injecting grouting liquid downwardly. | |
| JP6023040B2 (en) | Mouth pipe for high-pressure jet stirring method and high-pressure jet stirring method | |
| Yang et al. | Coupling model of stress-damage-flow and its application to the investigation of instantaneous seepage mechanism for gas during unloading in coal seam with depth. | |
| JP2014201907A (en) | Soil improvement material injection method and device thereof | |
| CN106609133A (en) | Multi-system long-time antiscale agent for oil well | |
| RU2495902C1 (en) | Sealing mud and method of sealing influx of reservoir fluid or gas | |
| CN213953575U (en) | Oil field is with fracturing output increase nanometer displacement of reservoir oil injection device | |
| CN104500108B (en) | Method for treating tunnel base water return point | |
| CN112682073A (en) | Water retaining wall structure for blocking tunnel portal in shield well and construction method thereof | |
| DE102010039385A1 (en) | Method and device for partial cleaning, with simultaneous disinfection, of buried pipelines of the public drinking water network | |
| CN206622443U (en) | Soil and underground water biliquid shallow-layer stirring in situ chemical oxidation repair system | |
| CN206617153U (en) | A kind of oil well selective acidizing process system | |
| CN105880271B (en) | A kind of restorative procedure of mine chromium heavy-metal contaminated soil | |
| RU2378490C1 (en) | Insulation method of water influx and well thief zone | |
| CN109252850A (en) | The acid fracturing of carbonate formation well is surged method and apparatus | |
| CN213950855U (en) | Industrial sewage treatment is with disinfection filter equipment | |
| CN116445147B (en) | Sea stratum unclamping acid liquid and acid soaking unclamping method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190712 |
|
| RJ01 | Rejection of invention patent application after publication |