| Customization: | Available |
|---|---|
| Type: | Core Drill |
| Usage: | Coring |
|
Still deciding? Get samples of US$ 100/Piece
Request Sample
|
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
When using diamond reamers, there are several common problems that can arise. Here is additional information on these problems and their potential solutions:
Solution: To address cutter wear, reamer designs can incorporate backup cutters or multiple rows of cutters strategically placed along the tool. These backup cutters help prolong the tool's life and maintain cutting efficiency as the primary diamond cutters wear down. Additionally, optimizing drilling parameters such as rotational speed and weight on bit can minimize wear and extend the lifespan of the diamond cutters.
Solution: Selecting diamond reamers with appropriate cutter designs for the specific drilling conditions can mitigate cutter damage or breakage. Reamers with advanced cutter geometries, such as impact-resistant or chisel-shaped cutters, offer increased durability and resistance to damage. Implementing proper drilling practices, such as maintaining consistent weight on bit and avoiding excessive shock loading, can also help prevent cutter damage and extend the tool's lifespan.
Solution: Diamond reamers can be designed with optimized hydraulic features, such as spiral flutes or specially shaped junk slots, to improve cuttings evacuation. Additionally, adjusting drilling parameters such as mud flow rate and flow properties can optimize cuttings transport and prevent clogging. Close monitoring of the drilling operation and making necessary adjustments ensure efficient cuttings evacuation throughout the drilling process.
Solution: Preventive measures include proper wellbore stabilization, effective drilling fluid management, and drilling optimization techniques. Implementing suitable centralization techniques, using appropriate drilling fluids, and conducting regular wellbore stability analysis help reduce the risk of reamer sticking or loss. In the event of a stuck or lost reamer, specialized fishing tools and techniques can safely retrieve the tool.
It's important to note that the specific problems encountered and their corresponding solutions vary depending on drilling conditions, formation characteristics, and operational parameters. Consulting with drilling experts, reamer manufacturers, and experienced personnel is crucial to identify and address specific challenges encountered during diamond reamer usage.
Model or type:
Specifications
| ITEM | DIAMOND BIT | Reaming shell | |||||
| "Q" Series Wireline assembly |
Size | Bit Outer Diameter | Bit Inner Diameter | ||||
| mm | inch | mm | inch | mm | inch | ||
| AQ | 47.60 | 1.88 | 26.97 | 1.06 | 48.00 | 1.89 | |
| BQ | 59.50 | 2.35 | 36.40 | 1.43 | 59.90 | 2.36 | |
| NQ | 75.30 | 2.97 | 47.60 | 1.88 | 75.70 | 2.98 | |
| HQ | 95.58 | 3.77 | 63.50 | 2.50 | 96.00 | 3.78 | |
| PQ | 122.00 | 4.80 | 84.96 | 3.35 | 122.60 | 4.83 | |
| Metric T2 Series | 36 | 36.0 | 1.417 | 22.0 | 0.866 | 36.3 | 1.429 |
| 46 | 46.0 | 1.811 | 32.0 | 1.260 | 46.3 | 1.823 | |
| 56 | 56.0 | 2.205 | 42.0 | 1.654 | 56.3 | 2.217 | |
| 66 | 66.0 | 2.598 | 52.0 | 2.047 | 66.3 | 2.610 | |
| 76 | 76.0 | 2.992 | 62.0 | 2.441 | 76.3 | 3.004 | |
| 86 | 86.0 | 3.386 | 72.0 | 2.835 | 86.3 | 3.398 | |
| 101 | 101.0 | 3.976 | 84.0 | 3.307 | 101.3 | 3.988 | |
T Series |
TAW | 47.6 | 1.875 | 23.2 | 1.31 | 48.0 | 1.89 |
| TBW | 59.5 | 2.345 | 44.9 | 1.77 | 59.9 | 2.36 | |
| TNW | 75.3 | 2.965 | 60.5 | 2.38 | 75.7 | 2.98 |
|
| Reaming classification | |
| T series | T36,T46,T56,T66,T76,T86 |
| Cable series | AWL,BWL,NWL,HWL,PWL(Front end,rear end) |
| WT series | RWT,EWT,AWT,BWT,NWT,HWT(single tube/double tube) |
| T2/T series | T256,T266,T276,T286,T2101,T676,T686,T6101,T6116,T6131,T6146,T6H |
| WF series | HWF,PWF,SWF,UWF,ZWF |
| WG series | EWG,AWG,BWG,NWG,HWG(single tube/double tube) |
| WM series | EWM,AWM,BWM,NWM |
| Others | NMLC,HMLC,LTK48,LTK60,TBW,TNW,ATW,BTW,NTW,AQTK NXD3,NXC,T6H,SK6L146,TT46,TB56,TS116,CHD101 |
Q&A:
Q1: What challenges arise when reaming highly permeable formations?
A1: Lost circulation risks require optimized fluid systems, controlled pressures avoiding fluid losses into natural fractures/solution channels weakening integrity. Aggressive centralization handles uneven hole conditions without spiraling out of control.
Q2: Why is coordination important between all well construction phases?
A2: Reaming enables casing/cement jobs delivering zonal isolation platform. Casing prepares liner installations accessing pay intervals. Cleaning removes restrictions facilitating completions equipment placement. Integrated teamwork delivers the well architecture as economically planned from spud to first production.
Q3: What considerations apply when reaming depleted reservoir sections?
A3: Subsidence risks necessitate pressure control minimizing fracture reactivation through fluid density/pressure adjustments. Strength evaluation informs stabilization against loose rubble reducing drag. Cement isolation eliminates commingling reservoirs.
Q4: How do carbonate karst zones impact equipment selection?
A4: Erosion unpredictability challenges centralized cleaning necessitating stringent guidance elements keeping reamer centered in open hole to maintain wellbore quality without spiraling off course. Aggressive bits withstand irregular surfaces.
Q5: What interplay exists between pressures and hydraulics in reaming?
A5:downhole pressure gradients matched against pore pressures optimize hydraulics preventing losses without inducing fractures if exceeded. Efficient circulation cleans without swamping and stalling reaming at necessary pressures managed through rig surface system capabilities.
Product gallery
){kind=link}