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| Categories | Open Hole DST |
|---|---|
| Brand Name: | TECHCORE |
| Model Number: | RDS510004 |
| Certification: | ISO, BV |
| Place of Origin: | China |
| MOQ: | 1 set |
| Price: | Negotiable |
| Payment Terms: | T/T, L/C |
| Supply Ability: | 10 SET/MONTH |
| Delivery Time: | 30 DAYS |
| Packaging Details: | Polly wood, suitable for sea and air shipment |
| Application: | Open Hole Drill Stem Testing |
| Type: | Open hole tester valve |
| Working Pressure: | 15000 psi |
| Tool Size: | 5 inch |
| Connection: | IF Box X Pin |
| Working condition: | H2S above 175oF |
| Material: | AISI Alloy Steel |
| Package: | Polywood Case |
| Company Info. |
| Techcore Oil Tools Co.,Ltd, |
| Verified Supplier |
| View Contact Details |
| Product List |
ISO BV Approve Open Hole DST Tester Valve Dual Control Valves 70
Mpa
Introduction of Open Hole Multi-Flow Evaluator
The Multi-Flow Evaluator, which has dual control valves, is
sequentially opened and closed by up and down motion of the drill
stem, the MFE is in the closed position going in the hole and is
opened with a time delay, by applying weight to the drill stem when
bottom is reached .Following this delay the drill stem drops
rapidly one inch, indicating opening.
To close the MFE the drill stem is picked up through the free point
and moderate tension is applied, then weight is set back down. To
re-open the MFE the same operation of up and down motion is
repeated. The unlimited number of shut-in and flow periods gives
additional information for chart analysis.
The Multi-Flow Evaluator’s dual control valves trap a sample of
flowing fluid at the end final flow period. This sample is brought
to the surface under pressure with the string of tools. A choke
retainer in the top sub allows flexibility in bottom choke size.
Specification of Open Hole Multi-Flow Evaluator
| No | Specification | 5” |
| 1 | OD | 127.5mm |
| 2 | Length(mm) | 3102mm |
| 3 | Working pressure | 70Mpa |
| 4 | Tensile strength(yield) | 1868.8kN |
| 5 | External yield pressure | 22000psi |
| 6 | Torque strength | 20000psi |
| 7 | Flow area | 1200mm2 |
| 8 | Service Environment | Mud, crude oil, natural gas with H2S,apply to NACE MR0175-2002 |
| 9 | End connections | 3 1/2 IF. B X 3 1/2 IF.P(with crossover) |
| 10 | Service Temperature | -20oF~+400oF |
Constructure of Open Hole Multi-Flow Evaluator
The MFE consists of three basic sections: indexing, delay, and
sampling. Each of these sections will be described in detail below.
Indexing Section
The indexing section consists of three basic parts: Spline Mandrel,
Spline Sleeve, and J-Pin, The function of the indexing section is
to sequentially open and close the testing valve as the spline
Mandrel is moved up and down.
Delay Section
The “opening indication” mentioned above is incorporated into the
delay system. The MFE incorporates a delay system similar to a
conventional hydraulic tool: the hydraulic delay is effective when
slacking down, but “disengaged” while picking up.
Sampler Section
The sampler section is a full flow-through type. All of the
formation fluid passes through the sampler before entering the
drill pipe when slacking down, but “disengaged” while picking up.
About Techcore Oil Tools
Techcore Oil Tools expertise in manufacture of the Drill Stem
Testing Tools for more than Ten years, the professional Reserch and
Development (R&D) department improves the advanced technology
in design of the Drill stem testing tools for well testing service.
We approach every client’s enquiry with meticulous attention to
technical specifications, and a high level of appreciation for
their urgency.
Welcome to contact us for more information about our tools and
service!
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