WO2009109758A2 - On-the-fly acid blender with sampling equipment - Google Patents
On-the-fly acid blender with sampling equipment Download PDFInfo
- Publication number
- WO2009109758A2 WO2009109758A2 PCT/GB2009/000606 GB2009000606W WO2009109758A2 WO 2009109758 A2 WO2009109758 A2 WO 2009109758A2 GB 2009000606 W GB2009000606 W GB 2009000606W WO 2009109758 A2 WO2009109758 A2 WO 2009109758A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- treatment fluid
- well treatment
- pipe
- component
- valve
- Prior art date
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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/062—Arrangements for treating drilling fluids outside the borehole by mixing components
Definitions
- a valve and bucket approach is used to take a sample of the treatment fluid out of the system for testing and analysis. Specifically, the onsite personnel would have to open a valve and obtain a sample of the treatment fluid in a bucket for analysis.
- the treatment fluid often comprises hazardous, corrosive or flammable material thereby posing a danger to the equipment, environment and the personnel taking the sample.
- exposure to elements can compromise the sample properties leading to inaccurate results when analyzing the sample.
- Figure 1 is a system for on-the-fly blending of treatment fluids with a sampling device in accordance with an exemplary embodiment of the present invention.
- Figure 2 is a system for on-the-fly blending of treatment fluids with a sampling device in accordance with another exemplary embodiment of the present invention.
- Figure 3 is an in-line sampling device in the closed position accordance with an embodiment of the present invention.
- Figure 4 is an in-line sampling device in the open position in accordance with an embodiment of the present invention.
- Figure 5 is a perspective view of a sampling device with a safety enclosure in accordance with an embodiment of the present invention.
- the present invention is directed to blending fluids. Specifically, the present invention is directed to improved methods and systems of blending and analyzing well treatment fluids at a well site.
- the present invention is directed to a method for blending a well treatment fluid at a well site, comprising: providing a first centrifugal pump for pumping a first component of the well treatment fluid into a pipe; providing a first valve for controlling the flow of the first component of the well treatment fluid into the pipe; providing a second centrifugal pump for pumping a second component of the well treatment fluid into the pipe; providing a second valve for controlling the flow of the second component of the well treatment fluid into the pipe; controlling the pumps and the valves so as to control the ratio of the first component of the well treatment fluid to the second component of the well treatment fluid being delivered to the pipe; and providing a sampling device for analyzing the well treatment fluid.
- the present invention is directed to a system for blending a well treatment fluid at a well site, comprising: a first centrifugal pump for pumping a first component of the well treatment fluid into a pipe; a first valve for controlling the flow of the first component of the well treatment fluid into the pipe; a second centrifugal pump for pumping a second component of the well treatment fluid into the pipe; a second valve for controlling the flow of the second component of the well treatment fluid into the pipe; means for controlling the pumps and the valves so as to control the ratio of the first component of the well treatment fluid to the second component of the well treatment fluid being delivered to the pipe; and a sampling device for monitoring the well treatment fluid.
- the present invention is directed to blending fluids. Specifically, the present invention is directed to improved methods and systems of blending and analyzing well treatment fluids at a well site.
- FIG. 1 an exemplary embodiment of a system for preparing and analyzing acids on-the-fiy at a desired rate is depicted generally with reference numeral 100.
- the system 100 blends various components of the well treatment fluid directly into a pipe 110. This reduces or eliminates the need for standard mixing tanks or tubs. This may be accomplished using at least two centrifugal pumps 120 (shown as 120a, 120b, and 120c). The centrifugal pumps 120 may each pump a different component of the desired well treatment fluid.
- centrifugal pumps may be used to allow for more than two different components to be mixed together.
- the system may include three centrifugal pumps for an acid treatment, where a first centrifugal pump may pump a hazardous chemical such as hydrochloric acid (“HCl”), a second centrifugal pump may pump water, and a third centrifugal pump may pump a highly corrosive chemical such as Ammonium Bi-Fluoride ("AF").
- HCl, water, and AF are disclosed, it should be understood that the chemicals may include any acid, hazardous chemical, corrosive, or other fluid.
- a non- aqueous fluid may be used as a primary flow stream.
- the non-aqueous fluid may include diesel.
- the system 100 may also include one or more valves 140 (shown as 140a, 140b, and 140c) for controlling the flow of the various components from the centrifugal pumps 120 into the pipe 110.
- the valves 140 may be butterfly valves, or any other valve suitable for use with well treatment fluids.
- the system 100 may include one or more pressure transducers 150 (shown as 150a, 150b, and 150c) that act as pressure controls on the centrifugal pumps 120, preventing the centrifugal pumps 120 from pushing one another off line. Feedback from pressure transducers 150 may signal pressure set points in centrifugal pumps 120, such that the centrifugal pumps 120 maintain a desirable balance.
- pressure transducers 150 shown as 150a, 150b, and 150c
- the system 100 may additionally include one or more flow meters 160 (shown as 160a, 160b, and 160c) and one or more check valves 162 (shown as 162a, 162b, and 162c) to monitor and control flow rates from the pumps 140.
- flow meters 160 shown as 160a, 160b, and 160c
- check valves 162 shown as 162a, 162b, and 162c
- Additional liquid additives may also be introduced into the pipe 110.
- the additives may be stored in liquid additive storage tanks (not shown), and pumped into the pipe 110 via one or more liquid additive pumps 130. While the liquid additive pump 130 is shown as a hand pump, the liquid additive pump 130 may be any type of pump, including, but not limited to, a positive displacement pump.
- One or more liquid additive valves may be included to control the flow of liquid additives from the liquid additive pumps 130 into the pipe 110.
- the well treatment fluid may be blended directly in the pipe 110, without the use of any tank.
- the flow rate and pressure of any of the components may be controlled by controlling the pumps 120 and 130 and the valves 140. This allows for the ratio of the various components and additives of the well treatment fluid to be modified as necessary for the specific field conditions at any given time. This modification can take place in real-time, allowing the desired well treatment fluid mix to be pumped into the well as it is needed.
- the system 100 may have a number of additional valves (not shown), with locations suitable for controlling flow in various ways as would be readily understood by one of ordinary skill in the art.
- these additional valves may be butterfly valves, some of which are open and some of which are closed.
- the additional valves may be used to address the mixing orders of some specific fluids by allowing a user to inject liquid additives into the raw product flow streams prior to entering the pipe 110.
- a discharge flow meter 190 may be included in the system 100. This may allow for adjustments to be made to the pumps 120 and valves 140, such that the correct mix ratio is maintained without creating undesirable negative pressure in the system 100. After the mix has passed through the discharge flow meter 190, it may pass through another pump (not shown), which then pumps the mix downhole.
- the system 100 may also optionally include a discharge recirculation pump 194.
- the discharge recirculation pump 194 may serve two purposes. The first may be for recirculation. The second may be for discharge at very low flow rates.
- the recirculation pump 194 may be any type of pump for discharge recirculation (e.g., a 120 HP pump).
- a sampling device 170 may be coupled to the system 100.
- the sampling device 170 may be coupled to the system in parallel to the discharge recirculation pump 194.
- the sampling device may allow the operator to take samples of the fluid produced by the system 100 while protecting personnel from exposure to the material flowing through the pipe 110 which is often comprised of hazardous chemicals.
- Figure 2 depicts another exemplary embodiment of the present invention where the sampling device 170 is coupled to the pipe 110 just before the fluid enters the discharge flow meter 190.
- the sampling device 170 may be removably coupled to the system 100. It may be desirable to attach the sampling device 170 to the system 100 when a sample is to be taken and remove it when the sampling process has been completed.
- One or more valves may be used to control the fluid flow through the sampling device 170. The valves may be closed when no sample is to be taken or when the sampling device 170 is not coupled to the system 100. Once the operator decides to take a sample the valves may be opened to allow fluid flow through the sampling device 170.
- FIG. 3 Shown in Figure 3 is an in-line sampling device in the closed position in accordance with an embodiment of the present invention denoted generally by reference numeral 300.
- the in-line sampling device 300 allows fluid samples to be taken directly from the pipe 110 into a sampling container 302. This ensures that a real-time sample is taken from the fluid stream and eliminates sample exposure while eradicating the health and safety risks to personnel who would otherwise be responsible for taking a sample.
- a number of different methods may be used to couple the sampling device 300 with the pipe 110.
- the in-line sampling device 300 mounts onto the pipe 110 between two standard flanges 304.
- a sampling container 302 may be coupled at one end of the sampling device 300 and a lever 306 at the other.
- a valve spindle 308 When a sample is not being taken, a valve spindle 308 may be pressed by a spring 310 against a soft seal 312.
- Figure 4 depicts an in-line sampling device in accordance with an embodiment of the present invention in the open position.
- the lever 306 When the lever 306 is turned, the valve spindle 308 may be lifted from the soft seal 312.
- the stroke of the lever 306 can be adjusted by a travel stop 314.
- the valve spindle 308 allows a smooth and controlled sample flow into the sampling container 302 through an inlet 316.
- any displaced air vents through a ventilation outlet 318.
- the ventilation outlet 318 may be coupled to a scrubber system when the samples taken include hazardous materials. The operation of scrubber systems is well know to those of ordinary skill in the art and will therefore not be discussed in detail herein.
- a multi-turn hand wheel may be used to lift the valve spindle 308.
- a multi-turn hand wheel allows accurate metering of the sample into a container, it is not fail-safe as the operator may mistakenly leave the sample valve open and overflow the sampling container 302.
- the spring 310 is used to create a spring loaded handle which will automatically close the valve when the operator releases the lever 306 handle.
- a number of different mechanisms including, but not limited to, a spring loaded lever, a multi-turn hand wheel, or any other device suitable for opening and/or closing a valve may be used to control the sampling process.
- sampling containers 302 may be used in conjunction with the in-line sampling device 300.
- the sampling container 302 comprises a glass bottle which is threaded into the bottom of the sample device 300. The bottle will then hold the sample as it is drawn from the pipe 110.
- the sampling container 302 may be enclosed in a glove box 500 as depicted in Figure 5. This allows the bottle to be capped inside the glove box thereby preventing the exposure of the sample taker to any fumes from the sample while minimizing sample exposure to outside elements.
- the glove box 500 may be any type of container suitable for containing spills and or fumes.
- Computer software may be used to control the mix ratio.
- the computer software may include a pressure control system, a rate control system, and/or a concentration control system.
- the pressure control system may control pressure by controlling the pumps 120.
- the rate control system may control flow rate by controlling the valves 140.
- the concentration control system may control the concentration by controlling the pumps 120.
- the pressure control system may include a drive signal to the centrifugal pumps 120 and feedback from pressure transducers 150.
- Each of the centrifugal pumps 120 may maintain a separate pressure set point. These pressure set points may be based on expected rate and resultant discharge pressure.
- the optimal pressure set point may place the valves 140 at a predetermined percentage open for each respective expected rate.
- the rate control system may include a drive signal to each valve 140 and feedback from the respective flow meter 160.
- the valve 140 for a first (or master) component e.g., water
- the rate may be set by the discharge rate, as measured by the discharge flow meter 190.
- the rate set points for the remaining valves 140 may be set by the concentration control system.
- the operator has the ability to ramp up or down the concentration and/or liquid additives depending on the specific need. This may be a desirable alternative to the standard practice of mixing a new batch at the acid plant and transporting the mixture to the well site.
- the concentration control system may include the rate control system and the rate feedback from the master (e.g., water) rate, which may be measured by the corresponding flow meter 160.
- the rate set points for the other components may be calculated from a concentration or parts per thousand of the master rate. As the master rate increases, the rate for the other components may also increase. The increasing rate of other components will slow the increasing master rate until the desired concentration is established.
- the system 100 may optionally include additional components.
- the system 100 may include a tank 192. Due to the nature of the types of chemicals used, the tank 192 may be situated on the discharge side of the system 100. The tank 192 may be used to prevent loss if something goes wrong and the job must be stopped. Additionally, the tank 192 may be useful in situations where the flow rates are very low.
- additional valves 196 may be used to control the flow of the fluid through the tank 192. For example, these additional valves may be butterfly valves, some of which are open and some of which are closed.
- This system 100 may be used for acid blending for acidizing wells, otherwise known as "Acid-On-the-Fly," which involves blending two or more major hazardous chemical components into a pressurized piping system and injecting one or more liquid additives into that flow stream.
- This system 100 may alternatively be used for fracturing operations, in which case the treatment fluid would be a fracturing fluid. Additionally, this system 100 may be used for drilling operations, in which case the treatment fluid would be drilling mud.
- the ability to blend "On-the-Fly" may reduce the amount of blended chemicals requiring disposal upon completion of the process. It may also lower exposure of hazardous chemicals to personnel and the environment. Furthermore, it may decrease the number of personnel required for the process and decrease the amount of time hazardous chemicals would be in use. Additionally, by blending the chemicals as they are pumped downhole, there may be a significant reduction of waste that must be disposed of, and cost associated with that disposal process. Further, there may be a reduction in cost for transporting the mixed chemicals, since that would no longer be a requirement. Additionally, there may be a reduction of cost for buying and maintaining the highly regulated cargo tank motor vehicles. Additionally, there may be a reduction and/or elimination of the bulk chemical plants (otherwise known as acid plants) currently being used. By eliminating bulk acid plants, transports, and the physical handling of these types of chemicals, the risk of personal and environmental exposure may be significantly reduced.
- the bulk chemical plants also known as acid plants
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2009220989A AU2009220989B2 (en) | 2008-03-07 | 2009-03-04 | On-the-fly acid blender with sampling equipment |
EP09717529A EP2276905B1 (en) | 2008-03-07 | 2009-03-04 | On-the-fly acid blender with sampling equipment |
BRPI0909355A BRPI0909355A2 (en) | 2008-03-07 | 2009-03-04 | method and system for mixing a well treatment fluid at a well site. |
DK09717529.3T DK2276905T3 (en) | 2008-03-07 | 2009-03-04 | On-The-Fly acid mixer with sampling equipment |
MX2010009808A MX2010009808A (en) | 2008-03-07 | 2009-03-04 | On-the-fly acid blender with sampling equipment. |
AT09717529T ATE555272T1 (en) | 2008-03-07 | 2009-03-04 | ON-THE-FLY ACID MIXER WITH SAMPLING EQUIPMENT |
CA2717490A CA2717490C (en) | 2008-03-07 | 2009-03-04 | On-the-fly acid blender with sampling equipment |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/044,228 | 2008-03-07 | ||
US12/044,228 US20090223664A1 (en) | 2008-03-07 | 2008-03-07 | On-the-Fly Acid Blender with Sampling Equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2009109758A2 true WO2009109758A2 (en) | 2009-09-11 |
WO2009109758A3 WO2009109758A3 (en) | 2009-11-19 |
Family
ID=41052406
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2009/000606 WO2009109758A2 (en) | 2008-03-07 | 2009-03-04 | On-the-fly acid blender with sampling equipment |
Country Status (9)
Country | Link |
---|---|
US (1) | US20090223664A1 (en) |
EP (1) | EP2276905B1 (en) |
AT (1) | ATE555272T1 (en) |
AU (1) | AU2009220989B2 (en) |
BR (1) | BRPI0909355A2 (en) |
CA (1) | CA2717490C (en) |
DK (1) | DK2276905T3 (en) |
MX (1) | MX2010009808A (en) |
WO (1) | WO2009109758A2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10088393B2 (en) * | 2014-05-16 | 2018-10-02 | Russ Dehaven | Water sampling device |
SG11201704024SA (en) * | 2014-11-17 | 2017-06-29 | Weatherford Tech Holdings Llc | Controlled pressure drilling system with flow measurement and well control |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2039816A (en) * | 1934-03-16 | 1936-05-05 | James A Lupfer | Well drilling apparatus |
US3326536A (en) * | 1962-05-09 | 1967-06-20 | Dow Chemical Co | Mixing apparatus |
US3902558A (en) * | 1973-12-20 | 1975-09-02 | Mobil Oil Corp | Method of recovering oil using a chemical blending system |
US4454773A (en) * | 1981-11-06 | 1984-06-19 | Texaco Inc. | Time interval automatic well multi-phase fluid sampler |
CA2114294A1 (en) * | 1993-01-05 | 1995-07-27 | Thomas Earle Allen | Apparatus and method for continuously mixing fluids |
US5522459A (en) * | 1993-06-03 | 1996-06-04 | Halliburton Company | Continuous multi-component slurrying process at oil or gas well |
CA2220972C (en) * | 1996-11-29 | 1999-03-09 | Canadian Fracmaster Ltd. | Homogenizer/high shear mixing technology for on-the-fly hydration of fracturing fluids and on-the-fly mixing of cement slurries |
US7090017B2 (en) * | 2003-07-09 | 2006-08-15 | Halliburton Energy Services, Inc. | Low cost method and apparatus for fracturing a subterranean formation with a sand suspension |
-
2008
- 2008-03-07 US US12/044,228 patent/US20090223664A1/en not_active Abandoned
-
2009
- 2009-03-04 MX MX2010009808A patent/MX2010009808A/en active IP Right Grant
- 2009-03-04 AT AT09717529T patent/ATE555272T1/en active
- 2009-03-04 BR BRPI0909355A patent/BRPI0909355A2/en not_active IP Right Cessation
- 2009-03-04 CA CA2717490A patent/CA2717490C/en not_active Expired - Fee Related
- 2009-03-04 AU AU2009220989A patent/AU2009220989B2/en not_active Ceased
- 2009-03-04 WO PCT/GB2009/000606 patent/WO2009109758A2/en active Application Filing
- 2009-03-04 EP EP09717529A patent/EP2276905B1/en not_active Not-in-force
- 2009-03-04 DK DK09717529.3T patent/DK2276905T3/en active
Non-Patent Citations (1)
Title |
---|
None |
Also Published As
Publication number | Publication date |
---|---|
EP2276905B1 (en) | 2012-04-25 |
WO2009109758A3 (en) | 2009-11-19 |
BRPI0909355A2 (en) | 2015-09-29 |
CA2717490A1 (en) | 2009-09-11 |
AU2009220989B2 (en) | 2013-07-11 |
MX2010009808A (en) | 2010-09-30 |
ATE555272T1 (en) | 2012-05-15 |
EP2276905A2 (en) | 2011-01-26 |
CA2717490C (en) | 2013-04-30 |
US20090223664A1 (en) | 2009-09-10 |
DK2276905T3 (en) | 2012-07-23 |
AU2009220989A1 (en) | 2009-09-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20090154288A1 (en) | On-the-Fly Acid Blender with High-Rate, Single Pass, Emulsification Equipment | |
RU2618877C2 (en) | Homogenized oilfield gel production system and method | |
US9770712B2 (en) | In-situ catalyst sulfiding, passivating and coking systems and methods | |
CN102401834A (en) | Multi-channel on-line sampling and sample introducing method for high-temperature high-thickness liquid material | |
SG193744A1 (en) | Modular manifold of a wellsite fluid systemand method of using same | |
US9353585B2 (en) | On-the-fly acid blender with sampling equipment | |
CN108593522B (en) | Automatic online labeling water purification filter element test line and labeling method | |
CA2717490C (en) | On-the-fly acid blender with sampling equipment | |
US20080190618A1 (en) | Method of Blending Hazardous Chemicals to a Well Bore | |
DE202007004912U1 (en) | Apparatus for treating ballast water with aqueous acrolein solution | |
CN205217598U (en) | Normal position injection system | |
US20140128297A1 (en) | System and Method for Injecting Peracetic Acid | |
WO2015009450A1 (en) | Apparatus for evaluating carbonate solubility | |
US20190204187A1 (en) | Hybrid product sampling system employing suction and discharge lines | |
FI107645B (en) | An automatic sampling and processing system | |
EP3326716A1 (en) | In-situ catalyst sulfiding, passivating and coking methods and systems | |
US20220065076A1 (en) | System for friction reduction using nano-bubbles | |
US11255711B1 (en) | Real time additive processing system for crude oil, fuels, or refined products and method | |
CN208465817U (en) | A kind of multi-component liquid hybrid system for wastewater treatment | |
CA3110500C (en) | Methods for wastewater treatment using alcohol ethoxylate surfactants | |
CN208218482U (en) | A kind of PH conditioning tank | |
Jackson | Hydrated lime handling systems for thermal enhanced oil recovery: Toolkit | |
WO2013070728A1 (en) | System and method for injecting peracetic acid | |
CN116952693A (en) | Ion detection device for drilling fluid | |
Jackson | Hydrated lime handling systems for thermal enhanced oil recovery: Guideline development report |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09717529 Country of ref document: EP Kind code of ref document: A2 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2717490 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2009220989 Country of ref document: AU |
|
WWE | Wipo information: entry into national phase |
Ref document number: MX/A/2010/009808 Country of ref document: MX |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2009220989 Country of ref document: AU Date of ref document: 20090304 Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2009717529 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: PI0909355 Country of ref document: BR Kind code of ref document: A2 Effective date: 20100903 |