CN104453828A - Staged fracturing gel breaking time control method for horizontal well - Google Patents
Staged fracturing gel breaking time control method for horizontal well Download PDFInfo
- Publication number
- CN104453828A CN104453828A CN201410631120.1A CN201410631120A CN104453828A CN 104453828 A CN104453828 A CN 104453828A CN 201410631120 A CN201410631120 A CN 201410631120A CN 104453828 A CN104453828 A CN 104453828A
- Authority
- CN
- China
- Prior art keywords
- horizontal well
- fracturing
- gel breaking
- glue
- time
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
-
- 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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/62—Compositions for forming crevices or fractures
-
- 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
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/24—Bacteria or enzyme containing gel breakers
-
- 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
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/26—Gel breakers other than bacteria or enzymes
Abstract
The invention discloses a staged fracturing gel breaking time control method for a horizontal well. The method includes the steps of calculating the fracturing construction time according to the well condition, simulating the fracture form and the fracturing temperature field, analyzing the influences of different gel breaking system adding amounts on the gel breaking effect by synthesizing the three factors including the time, the space and the temperature, simulating the condition that an energy increasing section is dynamically leaked out through fracturing fluid, comparing a gel breaking effect analysis value with the energy increasing section leak-out condition, and determining the gel breaking system adding amounts of all sections of the horizontal well with the maximum energy increase and the minimum damage of a balanced fracturing layer as the aims, so that the control over the staged fracturing gel breaking time of the horizontal well is achieved in this way. By means of the method, the accurate control over the staged fracturing gel breaking time of the horizontal well is achieved, fracturing liquid in the oil-gas well is prevented from excessively-early gel breaking, the influences of the fracturing liquid energy increase on the backflow effect are effectively improved, and the backflow rate of the horizontal well is increased.
Description
Technical field
The present invention relates to well fracturing yield-increasing technology, specifically a kind of staged fracturing of horizontal well breaks glue duration control method.
Background technology
Fracturing yield increasing is the important technology of oil gas well mining volume increase, and the key realizing fracturing yield increasing technique is support to Oil/gas Well crack and broken glue water conservancy diversion.
For staged fracturing of horizontal well, need after pressure to adopt segmentation to break glue, break glue while namely reaching each section of liquid during discharge opeing, so both can reduce the injury of of the fracturing fluid leak-off, after also can making full use of pressure, energy for promoting feed liquor body returns row, thus improves correctional effect.In recent years, domestic Oil/gas Well breaks glue to realize horizontal well in segments, the fracturing liquid adopted is hydroxypropyl guar gum fracturing fluid system, if and for the broken colloid owner microcapsules that this fracturing fluid system adopts, the single gel breaker of ammonium persulfate or biology enzyme, or wherein both compounds break colloid system, and the dosage optimization aspect of broken colloid system only considers that reservoir temperature is on the impact of broken glue effect usually, thus make brokenly the node control of glue time very difficult, there is long-time (> 7h) broken uncontrollable problem of glue, cause fracturing fluid broken glue too early, not only reduce the effective viscosity of fracturing fluid system, and the filter loss of fracturing fluid system is increased greatly, thus weaken the impact of fracturing fluid energization on flowback effect, eventually reduce horizontal well to return row and lead, exacerbate the injury to reservoir, correctional effect after impact pressure.
Summary of the invention
The object of the invention is to: for above-mentioned prior art Problems existing, provide a kind of staged fracturing of horizontal well that accurately can control brokenly the glue time to break glue duration control method.
The technical solution used in the present invention is: a kind of staged fracturing of horizontal well breaks glue duration control method, calculate pressing crack construction time, simulation fracture form, simulation pressure break thermal field according to hole condition, comprehensive aforesaid time, space and temperature Three factors analyze different broken colloid systems addition to the impact of broken glue effect; The situation of simulation fracturing fluid dynamic filtration energization section; Broken glue effect analysis value and leak-off energization section situation are contrasted, determines the broken colloid system addition of each section of horizontal well to balance the maximum energization of pressure break reservoir and minimum injury for target, realize with this control that staged fracturing of horizontal well breaks the glue time.
Further, described broken colloid is capsule, ammonium persulfate and the composite tri compound that obtains of biology enzyme break colloid system.
Further, the described broken glue time is the broken glue time within staged fracturing of horizontal well 1 ~ 12h.
The invention has the beneficial effects as follows: realize by above-mentioned simple method the accurate control that staged fracturing of horizontal well breaks the glue time, thus avoid fracturing fluid broken glue too early in Oil/gas Well, effectively improve the impact of fracturing fluid energization on flowback effect, improve horizontal well and return row and lead.
Detailed description of the invention
First the present invention calculates the time of pressing crack construction according to hole condition, and simulating fracture pattern (i.e. space) and pressure break thermal field (i.e. temperature), comprehensive aforesaid time, space and temperature Three factors analyze and Bu Tong break colloid system addition to the impact of the effects such as broken glue speed, breaking glue solution viscosity; Simulate the situation of fracturing fluid dynamic filtration energization section again, namely fracturing fluid dynamic filtration is on the impact of pressure break energization; Broken glue effect analysis value and leak-off energization section situation are contrasted, determine the broken colloid system addition of each section of horizontal well to balance the maximum energization of pressure break reservoir and minimum injury for target, accurately control with the broken glue time that this realizes within staged fracturing of horizontal well 1 ~ 12h.
Above-mentioned broken colloid is capsule, ammonium persulfate and the composite tri compound that obtains of biology enzyme break colloid system, and it can delay the broken glue time of staged fracturing of horizontal well.
Claims (3)
1. a staged fracturing of horizontal well breaks glue duration control method, it is characterized in that: calculate pressing crack construction time, simulation fracture form, simulation pressure break thermal field according to hole condition, comprehensive aforesaid time, space and temperature Three factors analyze different broken colloid systems addition to the impact of broken glue effect; The situation of simulation fracturing fluid dynamic filtration energization section; Broken glue effect analysis value and leak-off energization section situation are contrasted, determines the broken colloid system addition of each section of horizontal well to balance the maximum energization of pressure break reservoir and minimum injury for target, realize with this control that staged fracturing of horizontal well breaks the glue time.
2. staged fracturing of horizontal well breaks glue duration control method according to claim 1, it is characterized in that: described broken colloid is capsule, ammonium persulfate and the composite tri compound that obtains of biology enzyme break colloid system.
3. staged fracturing of horizontal well breaks glue duration control method according to claim 1, it is characterized in that: the described broken glue time is the broken glue time within staged fracturing of horizontal well 1 ~ 12h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410631120.1A CN104453828A (en) | 2014-11-12 | 2014-11-12 | Staged fracturing gel breaking time control method for horizontal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410631120.1A CN104453828A (en) | 2014-11-12 | 2014-11-12 | Staged fracturing gel breaking time control method for horizontal well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104453828A true CN104453828A (en) | 2015-03-25 |
Family
ID=52900502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410631120.1A Pending CN104453828A (en) | 2014-11-12 | 2014-11-12 | Staged fracturing gel breaking time control method for horizontal well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104453828A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285600A (en) * | 2016-08-11 | 2017-01-04 | 中国石油天然气集团公司 | Obtain the method and device of bottom hole temperature (BHT) field in oil gas fracturing yield increasing |
| CN106567701A (en) * | 2015-10-09 | 2017-04-19 | 中国石油化工股份有限公司 | Hydraulic fracturing method |
| CN107545513A (en) * | 2016-06-29 | 2018-01-05 | 中国石油化工股份有限公司 | A kind of non-homogeneous synchronous gel breaking method in fracturing process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0379236A1 (en) * | 1989-01-17 | 1990-07-25 | Sofitech N.V. | Method for treating subterranean formations |
| US20030141064A1 (en) * | 2002-01-31 | 2003-07-31 | Roberson James David | Method and apparatus for fracing earth formations surrounding a wellbore |
| CN1987044A (en) * | 2006-11-16 | 2007-06-27 | 大庆油田有限责任公司 | Method for adding hydraulic fractured well gel breaker |
| CN102562021A (en) * | 2012-03-02 | 2012-07-11 | 陕西延长石油(集团)有限责任公司研究院 | Quick gel breaking process for intermediate and low temperate oil gas well fracturing fluid |
-
2014
- 2014-11-12 CN CN201410631120.1A patent/CN104453828A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0379236A1 (en) * | 1989-01-17 | 1990-07-25 | Sofitech N.V. | Method for treating subterranean formations |
| US20030141064A1 (en) * | 2002-01-31 | 2003-07-31 | Roberson James David | Method and apparatus for fracing earth formations surrounding a wellbore |
| CN1987044A (en) * | 2006-11-16 | 2007-06-27 | 大庆油田有限责任公司 | Method for adding hydraulic fractured well gel breaker |
| CN102562021A (en) * | 2012-03-02 | 2012-07-11 | 陕西延长石油(集团)有限责任公司研究院 | Quick gel breaking process for intermediate and low temperate oil gas well fracturing fluid |
Non-Patent Citations (2)
| Title |
|---|
| 赵怡: "《生物酶用于压裂液破胶的可行性研究》", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 * |
| 郎学军等: "《水力压裂工艺中的分段破胶技术》", 《石油钻采工艺》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106567701A (en) * | 2015-10-09 | 2017-04-19 | 中国石油化工股份有限公司 | Hydraulic fracturing method |
| CN106567701B (en) * | 2015-10-09 | 2019-01-01 | 中国石油化工股份有限公司 | A kind of hydraulic fracturing method |
| CN107545513A (en) * | 2016-06-29 | 2018-01-05 | 中国石油化工股份有限公司 | A kind of non-homogeneous synchronous gel breaking method in fracturing process |
| CN107545513B (en) * | 2016-06-29 | 2021-07-16 | 中国石油化工股份有限公司 | Non-uniform synchronous gel breaking method in fracturing process |
| CN106285600A (en) * | 2016-08-11 | 2017-01-04 | 中国石油天然气集团公司 | Obtain the method and device of bottom hole temperature (BHT) field in oil gas fracturing yield increasing |
| CN106285600B (en) * | 2016-08-11 | 2018-08-14 | 中国石油天然气集团公司 | Obtain the method and device of bottom hole temperature (BHT) field in oil gas fracturing yield increasing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2013016734A8 (en) | System and method for performing wellbore fracture operations | |
| SA517382363B1 (en) | Stacked Height Growth Fracture Modeling | |
| WO2010140032A3 (en) | Use of encapsulated tracers | |
| WO2015126799A3 (en) | Method for providing multiple fractures in a formation | |
| MX341853B (en) | Hydraulic fracturing method. | |
| CN104453828A (en) | Staged fracturing gel breaking time control method for horizontal well | |
| WO2014004611A3 (en) | Methods of improving hydraulic fracture network | |
| CN103527161B (en) | The method of horizontal well thermal recovery water plugging and profile controlling | |
| WO2016198894A3 (en) | Method for reservoir analysis and fracture design in a rock layer | |
| CN106223922A (en) | Staged fracturing technique is blocked up in the seam inner shield of shale gas horizontal well proppant temporarily | |
| MX2016002657A (en) | Method of optimizing conductivity in a hydraulic fracturing operation. | |
| CN105134159B (en) | A kind of efficient acid fracturing method being applicable to fracture-cavity type carbonate reservoir | |
| CN107216867A (en) | A kind of low viscous drop resistance slippery water acid solution for Carbonate Reservoir | |
| WO2007100956A3 (en) | Initiation and propagation control of vertical hydraulic fractures in unconsolidated and weakly cemented sediments | |
| CN109751036B (en) | Method for delaying effective fracture reconstruction volume decrement of deep shale gas | |
| WO2008112837A3 (en) | Hydraulic fracture initiation and propagation control in unconsolidated and weakly cemented sediments | |
| CN109209332B (en) | Acid slickwater composite fracturing method for shale gas horizontal well | |
| GB2528621A (en) | Breakers containing iron compounds and their methods of use | |
| CN106703775B (en) | Coal bed gas fracturing method | |
| WO2012143666A3 (en) | System and method for improved propped fracture geometry for high permeability reservoirs | |
| CN104141480A (en) | Slug sand-adding process for fracturing | |
| CN104564007A (en) | Process for fracturing non-fractured compact sand shale rock reservoirs to obtain fracture networks of vertical wells | |
| BR112018075924A2 (en) | method, and, training test tool. | |
| CN109630086A (en) | A kind of energization refracturing process for old well | |
| CN104100224A (en) | Oil well water plugging method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150325 |